CN215630321U

CN215630321U - Electric excavator driving motor installation connection structure and electric excavator

Info

Publication number: CN215630321U
Application number: CN202122004734.5U
Authority: CN
Inventors: 蒋智秋; 马营利; 蔡文; 魏学平
Original assignee: Zoomlion Earth Moving Machinery Co Ltd
Current assignee: Zoomlion Earth Moving Machinery Co Ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-01-25
Anticipated expiration: 2031-08-24

Abstract

The utility model relates to an installation and connection device, and discloses an installation and connection structure of a driving motor of an electric excavator, which comprises a driving motor (1), a connecting disc (2), a hydraulic main pump (4), an installation support (7), a shock absorber (8) and a rotary platform (9), wherein the front end of the driving motor (1) is fixed at one end of the connecting disc (2), the rear end of the driving motor (1) is fixed on the installation support (7), the connecting disc (2) and the installation support (7) are both installed on the rotary platform (9) through the shock absorber (8), the hydraulic main pump (4) is fixed at the other end of the connecting disc (2), and an output shaft of the driving motor (1) is connected with a rotating shaft of the hydraulic main pump (4). The device has the advantages of high installation precision, small occupied space, convenient after-sale maintenance and the like. The utility model also discloses an electric excavator.

Description

Electric excavator driving motor installation connection structure and electric excavator

Technical Field

The utility model relates to an installation connecting device, in particular to an installation connecting structure of a driving motor of an electric excavator, and the utility model further relates to the electric excavator.

Background

The excavator is used as important equipment in engineering construction, plays an extremely important role in construction of industrial and civil buildings, transportation, hydraulic and electric power engineering, mine excavation, military engineering and the like, and is widely applied to relevant engineering fields.

In a traditional excavator, an internal combustion engine drives a hydraulic main pump, the hydraulic main pump outputs high-pressure hydraulic oil, and the excavator is driven to work through a hydraulic system. In the electric hydraulic excavator, a driving motor is adopted to replace a traditional fuel engine, the motor is connected with a main pump through a coupler, and an electric motor is installed and welded on a support of a rotary table cross beam.

Chinese utility model patent CN201521109871.3 discloses a connection structure of motor and revolving stage for electric hydraulic shovel, as shown in fig. 1 and fig. 2, this connection structure of motor and revolving stage for electric hydraulic shovel includes revolving stage main part 7 and motor 1, and revolving stage main part 7 has two parallel revolving stage main part vertical beams 4, and the inboard of every revolving stage main part vertical beam 4 all has revolving stage main part bedplate 5, and motor 1 passes through the bolt fastening setting on motor support 2 upper portion, and motor support 2 installs on revolving stage main part bedplate 5. By the connection structure, the installation height of the motor is lower, and the stability of the whole machine can be improved.

Similarly, in the existing installation and connection structure of the driving motor of the electric excavator, the bracket is mostly formed by welding channel steel and is welded on the vertical beam of the main body of the turntable, the whole process is complex, and the precision is difficult to ensure; the motor is installed between two main part vertical beams, has restricted the operating space of motor, has influenced the convenience of follow-up maintenance. The existing electric excavator driving motor installation and connection structure is connected between the motor and the main pump through the coupler, so that the occupied space is large, and the connection cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a mounting and connecting structure of a driving motor of an electric excavator, which occupies small space and is convenient to maintain.

The utility model further aims to solve the technical problem of providing an electric excavator, wherein the driving motor is small in installation space and convenient to maintain.

In order to solve the technical problems, the utility model provides an installation and connection structure of a driving motor of an electric excavator, which comprises the driving motor, a connecting disc, a hydraulic main pump, an installation support, a damper and a rotary platform, wherein the front end of the driving motor is fixed at one end of the connecting disc, the rear end of the driving motor is fixed on the installation support, the connecting disc and the installation support are both installed on the rotary platform through the damper, the hydraulic main pump is fixed at the other end of the connecting disc, and an output shaft of the driving motor is connected with a rotating shaft of the hydraulic main pump.

Preferably, the output shaft of the driving motor is connected with the rotating shaft of the hydraulic main pump through a spline connection structure. According to the preferred technical scheme, the spline connection assembly precision requirement is low, the transmission torque is large, and the assembly and disassembly are convenient.

Preferably, the connecting disc comprises a disc, a vertical plate and a connecting disc bottom plate; the disc and the connecting disc bottom plate are respectively connected to the upper end and the lower end of the vertical plate, the bottom plate is installed on the rotary platform, and the driving motor and the hydraulic main pump are respectively fixed to the two ends of the disc. In this preferred technical scheme, the setting of riser can increase the installation distance between disc and the connection pad bottom plate, and the setting of bottom plate can make things convenient for the installation between connection pad and the rotary platform, and the disc can make things convenient for and be connected with the installation between driving motor and the hydraulic pressure main pump.

Further preferably, the disc is cylindrical, one end of the disc is provided with an outer flange, the other end of the disc is provided with an inner flange, the disc is fixedly connected with the front end of the driving motor through the outer flange, and the disc is fixedly connected with the hydraulic main pump through the inner flange. Through this preferred technical scheme, the setting of cylinder disc can make being connected between driving motor's output shaft and the rotation axis of hydraulic pressure main pump be located the inside of disc, can prevent the influence of dust in the operational environment to connection structure, guarantees the reliability of being connected between driving motor's output shaft and the rotation axis of hydraulic pressure main pump. The arrangement of the outer flanges and the inner flanges at the two ends of the disc also facilitates the connection between the disc and the driving motor and between the disc and the hydraulic main pump, and the connection reliability is improved.

Preferably, the mounting support comprises a mounting support plate, a reinforcing plate and a support base plate, the mounting support plate is vertically connected to one side of the upper side face of the support base plate, two adjacent sides of the reinforcing plate are respectively connected with the mounting support plate and the support base plate, the support base plate is mounted on the rotary platform, and the rear end of the driving motor is fixed on the mounting support plate. In the preferred technical scheme, the installation support plate is convenient to connect the installation support with the rear end of the driving motor, and the appropriate installation distance between the driving motor and the support base plate can be provided. The reinforcing plate can improve the connection strength between the installation supporting plate and the support base plate, and the installation firmness of the driving motor is enhanced.

Preferably, the mounting and connecting structure for the driving motor of the electric excavator further comprises a mounting bracket, the mounting bracket is fixed on the rotary platform, the shock absorber is mounted on the mounting bracket, and the connecting disc and the mounting support are mounted on the shock absorber. Through this preferred technical scheme, the installing support not only can make things convenient for the installation of connection pad and erection support, can also cushion the vibrations between excavator and the driving motor, improves the reliability of connecting.

Further preferably, there are two mounting brackets, the two mounting brackets are fixed on the rotary platform in parallel, and the connecting disc and the mounting support are respectively mounted on one mounting bracket. In the preferred technical scheme, the two mutually separated mounting frames are arranged, so that the weight of the mounting bracket is reduced, and the buffering performance of the mounting bracket is improved.

Furthermore, the mounting bracket is a metal bending plate, two ends of the metal bending plate are bent towards the same direction, and the metal bending plate is fixed on the rotary platform through a bending part. Through this preferred technical scheme, further increased the shock-absorbing capacity of installing support to the processing of installing support has been made things convenient for.

Preferably, the mounting and connecting structure for the driving motor of the electric excavator further comprises a mounting plate, the connecting disc and the mounting support are both mounted on the mounting plate, and the mounting plate is mounted on the rotary platform through the shock absorber. In the preferred technical scheme, the driving motor can be arranged on the mounting plate through the connecting disc and the mounting support to form a whole and then be arranged on the rotary platform, so that the driving motor can be conveniently arranged on the rotary platform.

In a second aspect of the present invention, there is provided an electric excavator using the electric excavator drive motor mounting and connecting structure provided in the first aspect of the present invention.

According to the mounting and connecting structure for the driving motor of the electric excavator, the driving motor and the hydraulic main pump are mounted on the rotary platform through the connecting disc and the mounting support, so that the mounting stability of the driving motor is improved, and the after-sale maintenance of the driving motor is facilitated. The structure that directly is connected between driving motor's output shaft and the rotation axis of hydraulic pressure main pump has left out the transmission shaft between traditional driving motor and the hydraulic pressure main pump, has reduced connection structure's space and has taken up, has also reduced the arm of force of main pump at the operation in-process simultaneously, and overall stability is better. The electric excavator provided by the utility model uses the mounting and connecting structure of the driving motor of the electric excavator, the mounting space of the driving motor is small, and the maintenance is convenient.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a structural view of a driving motor of a conventional electric hydraulic excavator;

FIG. 2 is an exploded view of the structure of FIG. 1;

FIG. 3 is a schematic view of one embodiment of a drive motor mounting connection structure of an electric excavator according to the present invention;

FIG. 4 is an exploded view of one embodiment of the present invention for a drive motor mounting connection structure for an electric excavator;

FIG. 5 is a schematic diagram of a land configuration in one embodiment of the utility model;

FIG. 6 is a schematic view of a mounting bracket configuration in one embodiment of the utility model.

Description of reference numerals:

1 drive motor 2 connecting disc

21 disc 22 riser

23 connecting disc bottom plate 3 bolt

4 hydraulic main pump 5 mounting plate

6 mounting bracket 7 mounting support

71 mounting support plate 72 reinforcing plate

73 support base plate 8 shock absorber

9 rotating platform

Detailed Description

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise specified, the terms of orientation or positional relationship as indicated by the words "front, rear, upper and lower" are used based on the orientation or positional relationship as shown in the drawings. The terms "front and rear" are relative to the drive motor, wherein the direction indicated by the term "front" is the direction in which the output shaft of the drive motor is located. The description of the orientation or positional relationship of the components of the present invention is consistent with the installation orientation thereof in the drawings.

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description is provided for purposes of illustration and explanation and is not intended to limit the scope of the utility model.

One embodiment of the mounting and connecting structure of the driving motor of the electric excavator, as shown in fig. 3 and 4, comprises a driving motor 1, a connecting disc 2, a hydraulic main pump 4, a mounting support 7, a shock absorber 8 and a rotary platform 9. The front end of the driving motor 1 is fixedly connected with the connecting disc 2, the rear end of the driving motor is fixedly connected with the mounting support 7, and the two ends of the driving motor 1 are respectively connected with the connecting disc 2 and the mounting support 7, so that the mounting stability of the driving motor 1 is greatly improved. The connection between the driving motor 1 and the connection disc 2 and the mounting bracket 7 may be made by various available connection methods, such as fixing the connection disc 2 and the mounting bracket 7 to both ends of the driving motor 1 using bolts 3, respectively. The lower part of the connecting disc 2 is mounted on a shock absorber 8 and is mounted on a rotary platform 9 through the shock absorber 8. The connecting part of the connecting disc 2 and the driving motor 1 can be designed into a shape matched with the front end of the driving motor 1, such as a ring shape, a cylinder shape or a bowl shape, so that the connecting disc 2 and the driving motor 1 can be conveniently connected. The connecting part of the connecting disc 2 is provided with a through hole for the output shaft of the driving motor 1 to pass through, so that the power output of the driving motor 1 is facilitated. The lower part of the mounting support 7 is also mounted on a shock absorber 8 and, via the shock absorber 8, on a revolving platform 9. The connecting part of the mounting support 7 and the driving motor 1 can be configured to be in a shape matched with the rear end of the driving motor 1, such as a plate shape, a frame shape or a bracket shape, so as to facilitate the connection between the mounting support 7 and the driving motor 1, but the shape of the mounting support 7 is configured to facilitate the air discharge of the cooling fan at the rear end of the driving motor 1. The damper 8 may be any of various suitable dampers, such as a rubber damper, a spring damper, etc., which are available. The setting of bumper shock absorber 8 can play the vibrations cushioning effect between driving motor 1 and hydraulic pressure main pump 4 and rotary platform 9, reduces the transmission of vibrations each other, effectively reduces whole vibration amplitude. The connecting disc 2 and the mounting support 7 can also increase the mounting distance between the driving motor 1 and the hydraulic main pump 4 and the rotary platform 9, particularly between main body vertical beams on the rotary platform 9, and the mounting convenience is improved. The driving motor 1 is installed at one end of the connecting disc 2, and the hydraulic main pump 4 is installed at the other end of the connecting disc 2, so that the output shaft of the driving motor 1 is directly connected with the rotating shaft of the hydraulic main pump 4. The output shaft of the driving motor 1 and/or the rotating shaft of the hydraulic main pump 4 may also be provided with a matching structure for mutual matching, such as a sleeve pin structure, a spline structure, a snap-fit structure, etc., and directly connected through the matching structure. Because no conventional shaft coupling is used for connecting between the output shaft of the driving motor 1 and the rotating shaft of the hydraulic main pump 4, the length of the whole assembled by the driving motor 1, the hydraulic main pump 4 and the connecting disc 2 is smaller, the required space during assembly is small, the vibration force arm of the main pump in the operation process is reduced, and the whole stability is better.

In some embodiments of the driving motor installation connection structure of the electric excavator of the present invention, the output shaft of the driving motor 1 and the rotating shaft of the hydraulic main pump 4 are provided with splines that are engaged with each other. Specifically, an internal spline may be provided on the output shaft of the driving motor 1, an external spline matching with the internal spline may be provided on the rotating shaft of the hydraulic main pump 4, and a direct connection between the output shaft of the driving motor 1 and the rotating shaft of the hydraulic main pump 4 is formed by matching the external spline and the internal spline.

As one embodiment of the mounting and connecting structure of the driving motor of the electric excavator according to the present invention, as shown in fig. 5, the connecting plate 2 includes a circular plate 21, a vertical plate 22, and a connecting plate bottom plate 23. The connection pad bottom plate 23 can be a bar-shaped metal plate, and mounting screw holes are formed in two side portions of the bar-shaped metal plate in the length direction so as to be capable of being mounted on the shock absorber 8 through the mounting screw holes and mounted on the rotary platform 9 through the shock absorber 8. The vertical plate 22 is a vertically placed metal plate, the lower end of the vertical plate 22 is fixedly connected to the middle part of the connecting disc bottom plate 23 in the length direction, and the upper end of the vertical plate is fixedly connected with the disc 21. The disc 21 may be provided with a ring-shaped, cylindrical or bowl-shaped structure made of a metal material, a through hole for passing an output shaft of the driving motor 1 and a rotating shaft of the hydraulic main pump 4 is provided at the center of the disc 21, two ends of the disc 21 are fixedly connected with the driving motor 1 and the hydraulic main pump 4, respectively, and the driving motor 1 and the hydraulic main pump 4 may be fixed at the end of the disc 21 by bolts 3. Of course, the driving motor 1 and the hydraulic main pump 4 may be fixedly connected to the disc 21 by other means, such as a threaded connection. The height of the vertical plate 22 determines the distance between the front end of the driving motor 1 and the hydraulic main pump and the rotary platform 9.

As one embodiment of the mounting and coupling structure of the driving motor of the electric excavator according to the present invention, as shown in fig. 5, the side wall of the disc 21 has a cylindrical shape. The side wall of one end of the disc 21 extends outwards along the radial direction to form an outer flange, a connecting screw hole is arranged on the outer flange, and the bolt 3 penetrates through the connecting screw hole on the outer flange to be fixedly connected with the front end of the driving motor 1. The side wall of the other end of the disc 21 extends inwards along the radial direction to form an inner flange, a connecting screw hole is formed in the inner flange, and the bolt 3 penetrates through the connecting screw hole in the inner flange to be fixedly connected with the hydraulic main pump 4. The output shaft of the drive motor 1 is connected to the rotary shaft of the hydraulic main pump 4 in the cylindrical side wall of the disc 21.

In some embodiments of the driving motor mounting-connecting structure of the electric excavator of the present invention, as shown in fig. 6, the mounting bracket 7 includes a mounting support plate 71, a reinforcing plate 72, and a bracket bottom plate 73. The support base plate 73 is a strip-shaped metal plate, and mounting screw holes are formed in both sides of the support base plate 73 in the length direction so as to be connected to the shock absorbers 8 through the mounting screw holes and mounted on the rotary platform 9 through the shock absorbers 8. The mounting stay 71 is vertically attached to the upper side of the holder base plate 73 in the length direction of the holder base plate 73, and is located on one side in the width direction of the holder base plate 73. The upper part of the mounting support plate 71 is provided with a connecting screw hole, the bolt 3 can pass through the connecting screw hole to be fixed at the rear end of the driving motor 1, and the height of the mounting support plate 71 determines the mounting distance from the rear end of the driving motor 1 to the rotary platform 9. The reinforcing plate 72 can be a metal plate in a right triangle shape, and two adjacent right-angle sides of the metal plate are respectively and fixedly connected with the installation support plate 71 and the support base plate 73 so as to enhance the mechanical strength of the installation support plate 71 in the thickness direction. The reinforcing plate 72 may be a metal plate having another shape such as a square shape or a rectangular trapezoid shape, and a plurality of reinforcing plates 71 may be provided, and a plurality of reinforcing plates 71 may be dispersed in the width direction of the mounting stay 71.

In some embodiments of the driving motor mounting-connecting structure of the electric excavator of the present invention, as shown in fig. 4, a mounting bracket 6 is further provided between the connecting disc 2 and the mounting bracket 7 and the revolving platform 9. The mounting bracket 6 can be a plate-shaped, frame-shaped or strip-shaped bracket made of metal materials, a plurality of shock absorbers 8 are mounted on the upper side surface of the mounting bracket 6, the connecting disc 2 and the mounting support 7 are mounted on the shock absorbers 8, and the lower part of the mounting bracket 6 is fixedly connected with the rotary platform 9. The arrangement of the mounting bracket 6 enables the connecting disc 2 and the mounting support 7 connected with the driving motor 1 to be directly mounted on the rotary platform 9 instead of being directly mounted on the mounting bracket 6 and mounted on the rotary platform 9 through the mounting bracket 6, so that on one hand, the buffering performance of the driving motor 1 is improved, on the other hand, the mounting of the connecting disc 2 and the mounting support 7 is facilitated, and the after-sale maintenance is more convenient.

In some embodiments of the mounting and connecting structure for the driving motor of the electric excavator according to the present invention, as shown in fig. 4, the mounting brackets 6 are two independent brackets, each of the two mounting brackets 6 is in the shape of a bar, and the two bar-shaped mounting brackets 6 are fixed on the revolving platform 9 in parallel at a set distance. The connecting disc 2 and the mounting bracket 7 are each mounted on a mounting bracket 6 such that the distance between the connecting disc 2 and the mounting bracket 7 is suitable for connection with both ends of the driving motor 1, respectively.

As a specific embodiment of the mounting and connecting structure for the driving motor of the electric excavator according to the present invention, as shown in fig. 4, each mounting bracket 6 is a metal bent plate. The two ends of the metal bending plate are bent towards the same direction and are fixed on the rotary platform 9 through the bent parts, and the mounting bracket 6 and the rotary platform 9 can be connected through a welding mode and can also be connected through other modes such as gluing, bolt connection and the like. The shock absorber 8 is arranged on the middle flat plate of the metal bending plate.

In some embodiments of the driving motor mounting-connecting structure of the electric excavator of the present invention, as shown in fig. 3 and 4, a mounting plate 5 is further provided between the connecting plate 2 and the mounting bracket 7 and the shock absorber 8. The mounting plate 5 is a flat metal plate, and the middle plate of the flat metal plate may be removed to reduce the weight of the mounting plate 5. Connection pad 2 and erection support 7 install the both sides of side on mounting panel 5 respectively, and connection pad 2 and erection support 7 can be installed on mounting panel 5 through bolted connection's mode, and the downside of mounting panel 5 is connected with a plurality of bumper shock absorbers 8, and a plurality of bumper shock absorbers 8 then can be installed on rotary platform 9, or install on the installing support 6 with rotary platform 9 fixed connection. Therefore, the connecting disc 2 and the mounting support 7 can be mounted at the front end and the rear end of the driving motor 1 respectively on line, the connecting disc 2 and the mounting support 7 are mounted on the mounting plate 5, and during on-line assembly, the lifting ring on the driving motor 1 is lifted and connected with the shock absorber 8 mounted on the rotary platform 9 in an assembling mode. After the driving motor 9 is assembled on the rotary platform 9, the hydraulic main pump 4 is assembled on the connecting disc 2, and the whole assembly process is simpler.

The electric excavator of the present invention uses the electric excavator drive motor mounting and connecting structure of any of the embodiments of the present invention. The advantages described above are also provided.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an implementation," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the utility model, numerous simple modifications can be made to the technical solution of the utility model, including combinations of the specific features in any suitable way, and the utility model will not be further described in relation to the various possible combinations in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. The utility model provides an electric excavator driving motor erection joint structure, its characterized in that, includes driving motor (1), connection pad (2), hydraulic pressure main pump (4), erection support (7), bumper shock absorber (8) and rotary platform (9), the front end of driving motor (1) is fixed the one end of connection pad (2), the rear end of driving motor (1) is fixed on erection support (7), connection pad (2) and erection support (7) all pass through bumper shock absorber (8) are installed rotary platform (9) is last, hydraulic pressure main pump (4) are fixed the other end of connection pad (2), just the output shaft of driving motor (1) with the rotation axis of hydraulic pressure main pump (4) is connected.

2. The mounting and connecting structure of the driving motor of the electric excavator according to claim 1, wherein an output shaft of the driving motor (1) is connected with a rotating shaft of the hydraulic main pump (4) through a spline connection structure.

3. The electric excavator driving motor mounting and connecting structure according to claim 1, wherein the connecting disc (2) comprises a disc (21), a vertical plate (22) and a connecting disc bottom plate (23); the disc (21) and the connecting disc bottom plate (23) are respectively connected to the upper end and the lower end of the vertical plate (22), the bottom plate (23) is installed on the rotary platform (9), and the driving motor (1) and the hydraulic main pump (4) are respectively fixed to the two ends of the disc (21).

4. The mounting and connecting structure for the driving motor of the electric excavator according to claim 3, wherein the disc (21) is cylindrical, one end of the disc (21) is provided with an outer flange, the other end of the disc is provided with an inner flange, and the disc is fixedly connected with the front end of the driving motor (1) through the outer flange and fixedly connected with the hydraulic main pump (4) through the inner flange.

5. The mounting and connecting structure for the driving motor of the electric excavator according to claim 1, wherein the mounting support (7) comprises a mounting support plate (71), a reinforcing plate (72) and a support base plate (73), the mounting support plate (71) is vertically connected to one side of the upper side of the support base plate (73), two adjacent sides of the reinforcing plate (72) are respectively connected with the mounting support plate (71) and the support base plate (73), the support base plate (73) is mounted on the revolving platform (9), and the rear end of the driving motor (1) is fixed on the mounting support plate (71).

6. The electric excavator drive motor mounting connection structure according to any one of claims 1 to 5, further comprising a mounting bracket (6), the mounting bracket (6) being fixed to the revolving platform (9), the shock absorber (8) being mounted on the mounting bracket (6), the connection disc (2) and the mounting bracket (7) being mounted on the shock absorber (8).

7. The mounting and connecting structure for the driving motor of the electric excavator according to claim 6, wherein there are two mounting brackets (6), two mounting brackets (6) are fixed in parallel on the revolving platform (9), and the connecting disc (2) and the mounting support (7) are respectively mounted on one mounting bracket (6).

8. The mounting and connecting structure for the driving motor of the electric excavator according to claim 7, wherein the mounting bracket (6) is a metal bent plate, and two ends of the metal bent plate are bent in the same direction and fixed on the rotary platform (9) through bent parts.

9. The electric excavator drive motor mounting connection structure according to any one of claims 1 to 5, further comprising a mounting plate (5), the connection disc (2) and the mounting bracket (7) are both mounted on the mounting plate (5), and the mounting plate (5) is mounted on the revolving platform (9) through the damper (8).

10. An electric excavator comprising the electric excavator drive motor mounting-connecting structure as claimed in any one of claims 1 to 9.