CN210975937U

CN210975937U - Foldable dual-mode driving electric excavator cable bundling device and excavator

Info

Publication number: CN210975937U
Application number: CN201921792743.1U
Authority: CN
Inventors: 谷先广; 孟科委; 程腾; 尹剑; 尚培宇; 廖正京
Original assignee: Anhui Guoju Construction Machinery Technology Co ltd
Current assignee: Anhui Guoju Construction Machinery Technology Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-07-10
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a device and excavator are restrainted to folding double mode drive electric excavator cable, this cable are restrainted the device and are included cable drum, locking mechanism and activity supporting mechanism. The locking mechanism comprises a pawl, an elastic reset assembly, a ratchet wheel and a movable wheel, and the movable support mechanism comprises a movable arm I, a pin shaft I, a movable arm II and a fixed support. The pawl is provided with a ratchet I and is rotatably arranged on the excavator body. The ratchet wheel is rotatably arranged on the excavating machine body, and the outer edge of the ratchet wheel is provided with a second ratchet. The ratchet wheel is provided with a stop point. The movable wheel is rotatably arranged on the excavator body. The first movable arm is fixed on the ratchet wheel and is rotatably connected with the second movable arm through a first pin shaft. The cable drum is rotatably arranged on the second movable arm, and a groove is formed in the second movable arm. The fixed support is rotatably arranged on the first movable arm and can be abutted and buckled in the groove. The utility model provides high climbing ability, flexibility and the climbing stability of excavator guarantee supply cable's safety in utilization and bearing capacity.

Description

Foldable dual-mode driving electric excavator cable bundling device and excavator

Technical Field

The utility model relates to a cable is received and is restrainted device in the excavator field especially relates to a device is received and restrainted to folding double mode drive electric excavator cable, still relates to the double mode drive electric excavator including this device is received and restrainted to cable.

Background

The engineering machinery is an important component of engineering equipment industry and plays an important role in development and construction of the country. An excavator widely applied to the field of engineering machinery is one of main models of engineering construction. The traditional excavator takes diesel oil and gasoline as fuels, the fuel efficiency is only about 33 percent and is not more than 40 percent at most, and great energy waste is caused; in addition, the air is polluted greatly by the emissions of the traditional excavator, and the health of human beings is threatened. The development of the conventional excavator is restricted by the outstanding problems of shortage of petroleum resources, price rise, environmental pollution and the like, and in order to solve the problems, the electric excavator using new energy as a power source is rapidly developed.

At present, the electric excavator mainly comprises a cable type electric excavator and a charging type electric excavator, wherein the cable type electric excavator needs to be connected with a cable for operation, and a power supply cable of the electric excavator needs to be bundled when the electric excavator walks. Although the existing electric excavator is basically equipped with the cable bundling device, the cable bundling device is fixedly installed on the excavator body. Although the cable bundling devices solve the problems of short endurance mileage and inconvenient charging of the electric excavator to a certain extent, the cable bundling devices also bring a plurality of potential safety hazards to the engineering operation of the excavator. When an electric excavator performs rotary operation, the rotary interference problem is caused due to the influence of a fixedly installed cable bundling device; when the electric excavator climbs, the whole center is serious backwards, the climbing capacity of the excavator is limited, and the climbing driving stability of the excavator is even reduced, so that accidents are caused.

SUMMERY OF THE UTILITY MODEL

There is the gyration to interfere for the cable of solving current electric excavator is collected and is put, restricts the technical problem of the climbing ability of excavator simultaneously, the utility model provides a device and excavator are collected to folding double mode drive electric excavator cable.

The utility model discloses a following technical scheme realizes: a cable bundling device of a foldable dual-mode driving electric excavator is used for bundling a power supply cable of the dual-mode electric excavator, and the dual-mode electric excavator comprises an excavator body; the cable bundling device comprises:

the power supply cable is wound on the cable drum;

the locking mechanism comprises a pawl, an elastic reset component, a ratchet wheel and a movable wheel; one end of the pawl is provided with at least one ratchet I, and the other end of the pawl is rotatably arranged on the excavating machine body; the elastic reset assembly is connected with the excavating machine body and the pawl, so that the pawl can rotate in a preset rotating range of the excavating machine body and provides elastic restoring force for the pawl; the ratchet wheel is rotatably arranged on the excavator body, and at least one ratchet tooth II matched with the at least one ratchet tooth I is arranged on the outer edge of the ratchet wheel; at least one stop point is arranged on the ratchet wheel; the movable wheel and the ratchet wheel are coaxially arranged and are rotatably arranged on the excavator body; the movable wheel is provided with a groove for the movement of the blocking point; after the ratchet wheel rotates for a preset angle along one direction, the second ratchet is clamped with the first ratchet, so that the ratchet wheel stops rotating relative to the excavator body through the pawl; when the ratchet wheel continues to rotate, the blocking point moves from one end of the groove to the other end and drives the movable wheel to rotate towards the other direction, so that the movable wheel is driven to jack the pawl, and the ratchet wheel can rotate relative to the excavator body; and

the movable support mechanism comprises a first movable arm, a first pin shaft, a second movable arm and a fixed support; one end of the first movable arm is fixed on the ratchet wheel, and the other end of the first movable arm is rotatably connected with one end of the second movable arm through a first pin shaft; the cable drum is rotatably arranged at the other end of the second movable arm, and a groove is formed in the side wall of the second movable arm, which is close to the first movable arm; one end of the fixed support is rotatably arranged on the first movable arm, and the other end of the fixed support can be abutted and buckled in the groove.

The utility model discloses a set up locking mechanism and activity supporting mechanism, when the cable drum was upwards pulled up by the manual work, the digging arm two upwards stimulate the digging arm one, and the digging arm one further makes ratchet spin to certain angle, and the pawl can lock the ratchet in a certain particular position this moment, can make a digging arm rigid, realizes that the digging arm one stops in the angle of difference. When the ratchet wheel is screwed to the limit position, the blocking point can move to the other end of the groove at one end of the groove, the movable wheel is further driven to rotate, the movable wheel jacks up the pawl, the first movable arm is further lowered, the cable drum can be restored to the original position, and the cable winding device can perform adaptability adjustment on the power supply cable when the excavator rotates. In the movable supporting mechanism, the first movable arm and the second movable arm can rotate relatively, when the first movable arm is placed normally, the second movable arm can be turned over forwards, the cable reel is placed close to the excavator body, the backward movement of the center of gravity of the excavator during running is avoided, the second movable arm is connected with the first movable arm through the fixed support and the first pin shaft, and the bearing capacity and the safety of the second movable arm in the use process are guaranteed. Thus, the utility model provides a current electric excavator's cable bundling device have the gyration to interfere, and the technical problem of the climbing ability of restriction excavator has simultaneously obtained flexibility and the excavator climbing stability that improves among the electric excavator in-service use, guarantees supply cable's safety in utilization, has also guaranteed the bearing capacity of cable drum and the technological effect of security simultaneously.

As a further improvement of the above scheme, the elastic reset assembly comprises a pre-tightening spring; one end of the pre-tightening spring is fixed on the other end of the pawl, and the other end of the pre-tightening spring is fixed on the excavator body; the pre-tightening spring is used for providing the elastic restoring force for the pawl, so that one end of the pawl has the axis grasping force towards the ratchet wheel.

As a further improvement of the above scheme, the locking mechanism further comprises a second pin shaft; the second pin shaft is inserted into the excavator body, and the other end of the pawl is installed on the excavator body through the second pin shaft.

As a further improvement to the above, a first movable arm that moves upwardly relative to the excavating machine body rotates the ratchet wheel in one direction and a second movable arm that moves downwardly relative to the excavating machine body rotates the ratchet wheel in the other direction.

As a further improvement of the scheme, the rotating angle of the first movable arm and the second movable arm through the first pin shaft ranges from 0 to 90 degrees; the fixed bracket is rotationally connected with one rotating arm through a third pin shaft, and the value range of the rotating angle is 0-180 degrees.

As a further improvement of the scheme, the number of the first ratchets is the same as that of the second ratchets, one side of the first ratchets, which faces the ratchet wheel, is an arc-shaped concave surface, and one side of the second ratchets, which faces the pawl, is an arc-shaped convex surface.

As a further improvement of the proposal, the distance between the center of the ratchet wheel and the side edge of the excavating machine body is the same as the length of the first movable arm, and the thickness of the part of the second movable arm inserted in the groove is the same as the depth of the groove.

As a further improvement of the above solution, the dual mode electric excavator further comprises a chassis; the cable bundling device further comprises:

the limiting mechanism comprises an upper limiting column and a lower limiting column; the upper limiting column and the lower limiting column are both arranged on the chassis, and the upper limiting column is positioned above the lower limiting column; when the first movable arm moves up to a preset limit position, the first movable arm is abutted against the upper limit column, and when the second movable arm moves down to a preset limit position, the second movable arm is pressed down on the lower limit column.

The utility model also provides a dual-mode drive electric excavator, which comprises an excavator body and a power supply cable, and the dual-mode drive electric excavator also comprises the cable bundling device of the folding dual-mode drive electric excavator; wherein the ratchet wheel is rotatably mounted on the excavator body, and the power supply cable is wound on the cable drum.

As a further improvement of the above scheme, the dual-mode driving electric excavator further comprises a hydraulic system, a power output system and an energy system; the hydraulic system is used for driving the excavating machine body to move, rotate and perform excavating operation; the power output system comprises an electric motor; the electric motor is used for outputting driving force to the hydraulic system; the energy system is used for providing working energy for the power output system; the energy system comprises an operation energy subsystem and a non-operation energy subsystem; the operation energy subsystem inputs electric energy to the electric energy motor through the power supply cable; the non-operation energy subsystem comprises a storage battery pack and a voltage transformation inverter; the storage battery pack inputs electric energy to the electric energy motor through the voltage transformation inverter.

Compare in current cable and restraint device, the utility model discloses a device and excavator are restrainted to folding double mode drive electric excavator cable, it has following beneficial effect:

1. according to the cable bundling device of the foldable dual-mode driving electric excavator, the locking mechanism and the movable supporting mechanism are arranged, when the cable drum is pulled upwards manually, the movable arm upwards pulls the movable arm I, the movable arm I further enables the ratchet wheel to be screwed to a certain angle, at the moment, the ratchet wheel can be locked at a certain specific position by the pawl, and the movable arm I can be fixed and fixed. When the ratchet wheel is screwed to the limit position, the blocking point can move to the other end of the groove at one end of the groove, the movable wheel is further driven to rotate, the movable wheel jacks up the pawl, the first movable arm is further lowered, the cable drum can be restored to the original position, and the cable winding device can perform adaptability adjustment on the power supply cable when the excavator rotates. In the movable supporting mechanism, the first movable arm and the second movable arm can rotate relatively, when the first movable arm is placed normally, the second movable arm can be turned over forwards, the cable reel is placed close to the excavator body, the backward movement of the center of gravity of the excavator during running is avoided, the climbing capacity of the excavator is improved, the climbing running stability of the excavator is improved, the second movable arm is connected with the first movable arm through the first fixed support and the first pin shaft, and the bearing capacity and the safety of the second movable arm in the use process are guaranteed. Therefore, the cable bundling device solves the technical problems that the existing cable bundling device of the electric excavator has rotation interference and limits the climbing capability of the excavator, improves the flexibility and the climbing stability of the excavator in the actual use process of the electric excavator, ensures the use safety of a power supply cable, and also ensures the bearing capability and the safety of a cable drum.

2. The cable bundling device of the foldable dual-mode driving electric excavator can realize the fixation of any angle of the cable bundling device in the process of excavator operation and supply electric energy; under the non-operation state, the cable bundling device can be folded integrally and is flatly placed on the excavator body, the flexible operation requirement of the electric excavator is met, the running capability of the excavator is improved, and the running stability of the excavator is improved.

The beneficial effects of the dual-mode driving electric excavator are the same as those of the foldable dual-mode driving electric excavator cable bundling device, and are not repeated herein.

Drawings

Fig. 1 is a schematic structural view of a cable retracting device of a foldable dual-mode drive electric excavator according to embodiment 1 of the present invention, which is mounted on an excavator body;

fig. 2 is a schematic structural view of a cable bundling device of a foldable dual-mode driving electric excavator according to embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of the locking mechanism of FIG. 2;

FIG. 4 is a schematic structural view of the movable support mechanism of FIG. 2;

fig. 5 is a schematic structural view of the cable restraining device of the foldable dual-mode drive electric excavator according to embodiment 2 of the present invention, which is mounted on the excavator body;

fig. 6 is a schematic structural view of a dual-mode drive electric excavator according to embodiment 4 of the present invention.

Description of the symbols:

1 excavator body 27 pin 1

2 hydraulic system 28 movable arm two

3 working device 29 fixing support

4 running gear 30 groove

5 cable drum of slewing gear 31

6 32 gear points of energy system

7 power take-off system 33 groove

8 cab 34 pretension spring

21 pawl 35 pin shaft two

22 ratchet wheel 36 upper limit column

23 lower limit column of movable wheel 37

24 ratchet one 38 pin shaft three

25 ratchet two 39 rotary shaft

26 moving arm one

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a cable bundling device for a foldable dual-mode driving electric excavator, which is used for bundling a power supply cable of the dual-mode electric excavator. Wherein the dual mode electric excavator comprises an excavator body 1, the excavator body 1 being in accordance with known electric excavators. The cable bundling device can be independent of the electric excavator and can also be used as the structure of the electric excavator. In the present embodiment, the cable takeup device includes a locking mechanism, a movable support mechanism, and a cable drum 31.

Referring to fig. 3, the locking mechanism includes a pawl 21, an elastic return component, a ratchet 22, a movable wheel 23, and may further include a second pin 35 and a rotating shaft 39. One end of the pawl 21 is provided with a ratchet tooth 24, and the other end of the pawl 21 is rotatably mounted on the excavator body 1. The number of the first ratchets 24 is at least one, and in the embodiment, only two first ratchets 24 are shown for convenience of representation. The side of the ratchet tooth 24 facing the ratchet wheel 22 is arc-shaped concave surface, and the side far away from the ratchet wheel 22 is arc-shaped convex surface. The elastic return assembly connects the excavator body 1 and the pawl 21, enables the pawl 21 to rotate within a preset rotation range of the excavator body 1, and provides elastic restoring force for the pawl 21. In this embodiment, the resilient return assembly includes a preloaded spring 34. One end of the pre-tightening spring 34 is fixed to the other end of the pawl 21, and the other end of the pre-tightening spring 34 is fixed to the excavator body 1. The biasing spring 34 is used to provide an elastic restoring force to the pawl 21, so that one end of the pawl 21 has a gripping force toward the axial center of the ratchet 22. The second pin shaft 35 is inserted on the excavator body 1, and the other end of the pawl 21 is installed on the excavator body 1 through the second pin shaft 35.

The ratchet wheel 22 is rotatably mounted on the excavating machine body 1, and the outer edge is provided with a second ratchet 25 which is matched with the ratchet wheel. The ratchet wheel 22 is provided with a stop point 32, and the number of the stop points 32 is at least one. The number of the second ratchet teeth 25 is at least one, and in the embodiment, the first ratchet teeth 24 and the second ratchet teeth 25 are the same. Wherein, one side of the second ratchet teeth 25 facing the pawl 21 is an arc convex surface. The movable wheel 23 is coaxially provided with the ratchet wheel 22 and rotatably mounted on the excavating machine body 1. The movable wheel 23 is provided with a groove 33 for moving the stop point 32. After the ratchet wheel 22 rotates in one direction by a preset angle, the second ratchet 25 is engaged with the first ratchet 24, so that the ratchet wheel 22 stops rotating relative to the excavator body 1 through the pawl 21. As the ratchet wheel 22 continues to rotate, the catch point 32 moves from one end of the groove 33 to the other and drives the movable wheel 23 to rotate in the other direction, which drives the movable wheel 23 to jack up the pawl 21, so that the ratchet wheel 22 can perform a rotational movement relative to the excavator body 1.

In this embodiment, the center of the ratchet wheel 22 is spaced from the side of the excavating machine body 1 by the same length as the first movable arm 26. Further, the rotating shaft 39 in this embodiment is inserted into the excavator body 1, and the ratchet wheel 22 and the movable sheave 23 are rotatably mounted on the rotating shaft 39. In the operation of the locking mechanism, in the embodiment shown in the drawings, the ratchet wheel 22 rotates clockwise, so that the second ratchet 25 is rotated to the first ratchet 24, the first ratchet 24 is clamped with the second ratchet 25, the ratchet wheel 22 is limited by the pawl 21, and the first movable arm 26 is fixed, so that the ratchet wheel 22 is locked at a specific position. When the ratchet wheel 22 rotates counterclockwise, the stop point 32 moves in an arc in the groove 33 until it abuts against the movable wheel 23, thereby driving the movable wheel 23 to rotate counterclockwise. When the movable wheel 23 rotates anticlockwise, the upper edge of the movable wheel 23 can be pushed to the bottom of the pawl 21, the first ratchet 24 is pushed away from the second ratchet 25, the first ratchet 24 cannot limit the second ratchet 25 at the moment, the ratchet 22 can further rotate, the first movable arm 26 is lowered, the cable drum 31 can be restored to the original position, and the cable bundling device can perform adaptive adjustment on the power supply cable when the excavator rotates.

Referring to fig. 4, the movable support mechanism includes a first movable arm 26, a first pin 27, a second movable arm 28, and a fixed bracket 29. One end of the first movable arm 26 is fixed on the ratchet wheel 22, and the other end is rotatably connected with one end of the second movable arm 28 through a first pin 27. The side wall of the second movable arm 28 close to the first movable arm 26 is provided with a groove 30. One end of the fixed bracket 29 is rotatably arranged on the first movable arm 26, and the other end can be abutted in the groove 30.

In this embodiment, upward movement of the first moveable arm 26 relative to the excavator body 1 causes the ratchet wheel 22 to rotate in one direction, and downward movement of the first moveable arm 26 relative to the excavator body 1 causes the ratchet wheel 22 to rotate in the other direction. The rotating angle of the first movable arm 26 and the second movable arm 28 through the first pin 27 ranges from 0 to 90 degrees. The thickness of the part of the second movable arm 28 inserted in the groove 30 is the same as the depth of the groove 30. The fixed bracket 29 is rotatably connected with the first movable arm 26 through a third pin shaft 38, and the rotation angle is in the range of 0-180 degrees.

In particular installation, the end of the fixed bracket 29 can be installed in the groove 30 by a slide block, a pulley, or the like, and only the end of the fixed bracket 29 can be moved in the groove. In the movable supporting mechanism, the first movable arm 26 and the second movable arm 28 can rotate relatively, when the first movable arm 26 is placed normally, the second movable arm 28 can be turned over forwards, the cable drum 31 is placed close to the excavator body 1, the backward movement of the gravity center of the excavator during running is avoided, the climbing capacity of the excavator is improved, the climbing running stability of the excavator is further improved, the second movable arm 28 is connected with the first movable arm 26 through the fixed support 29 and the first pin shaft 27, and the bearing capacity and the safety of the second movable arm 28 in the use process are guaranteed.

The cable reel 31 is rotatably mounted on the other end of the second movable arm 28, and the power supply cable is wound on the cable reel 31. The cable drum 31 may be an existing cable drum, and may be driven by a motor or a spring, so as to automatically wind the power supply cable. The cable drum 31 may be in a counterweight type, a torque motor type, a hysteresis type, a variable frequency transmission type, or the like, and the specific form may be selected according to actual needs. The cable drum 31 can be coated with waterproof insulating paint to prevent the power supply cable from leaking electricity and being grounded.

For the convenience of use of the excavator, in the present embodiment, the lock mechanism is disposed inside the excavator body, i.e., inside the cab 8, and thus is not visible from the outside. Meanwhile, when the cable bundling device is not used, the second movable arm 28 can rotate forwards to be horizontally placed, and when the cable bundling device is used, the second movable arm can be lifted up, so that the cable bundling device can be folded for use. So, the cable is received and is restrainted device and just can realize receiving and releasing in a flexible way, for current fixed cable is received and is restrainted device, the cable of this embodiment is received and is restrainted device and can occupy less space, can also avoid the dust entering that the excavation operation produced to damage the cable and receive and restraint the device simultaneously.

In summary, the foldable dual-mode driving electric excavator cable bundling device of the embodiment has the following advantages:

1. according to the cable bundling device of the foldable dual-mode driving electric excavator, the locking mechanism and the movable supporting mechanism are arranged, when the cable drum 31 is pulled upwards by the power supply cable, the movable arm II 28 pulls the movable arm I26 upwards, the movable arm I26 further enables the ratchet wheel 22 to rotate upwards to a certain angle, at the moment, the pawl 21 can lock the ratchet wheel 22 at a certain specific position, the movable arm I26 can be fixed, and the movable arm I26 can stay at different angles. When the ratchet wheel 22 is rotated to the limit position, the stop point 32 moves from one end of the groove 33 to the other end of the groove, and further drives the movable wheel 23 to rotate, so that the movable wheel 23 jacks up the pawl 21, and further the movable arm one 26 is lowered, so that the cable drum 31 can be restored to the original position, and the cable bundling device can perform adaptive adjustment on the power supply cable when the excavator rotates. In the movable supporting mechanism, the first movable arm 26 and the second movable arm 28 can rotate relatively, when the first movable arm 26 is placed normally, the second movable arm 28 can be turned over forwards, the cable drum 31 is placed close to the excavator body, the backward movement of the gravity center of the excavator during running is avoided, the climbing capacity of the excavator is improved, the climbing running stability of the excavator is further improved, the second movable arm 28 is connected with the first movable arm 26 through the fixed support 29 and the first pin shaft 27, and the bearing capacity and the safety of the second movable arm 28 in the use process are guaranteed. Therefore, the cable bundling device solves the technical problems that the existing cable bundling device of the electric excavator has rotation interference and limits the climbing capability of the excavator, improves the flexibility and the climbing stability of the excavator in the actual use process of the electric excavator, ensures the use safety of a power supply cable, and also ensures the bearing capability and the safety of the cable drum 31.

Example 2

Referring to fig. 5, the present embodiment provides a cable bundling device for a foldable dual-mode driving electric excavator, which adds a position limiting mechanism on the basis of embodiment 1. Wherein, the dual mode electric excavator also comprises a chassis.

In this embodiment, the stop mechanism includes an upper stop post 36 and a lower stop post 37. Both the upper 36 and lower 37 restraint posts are mounted on the chassis, and the upper 36 restraint post is located above the lower 37 post. When the first movable arm 26 moves up to a predetermined limit position, the first movable arm 26 abuts against the upper limit post 36, and when the first movable arm 26 moves down to a predetermined limit position, the second movable arm 26 presses down on the lower limit post 37. The upper limiting column 36 can limit the upper limit of the first movable arm 26, and the lower limiting column 37 can limit the lower limit of the first movable arm 26, so that the first movable arm 26 can only move between a first preset limiting position and a second preset limiting position, excessive position deviation of the first movable arm 26 is prevented, normal operation of the cable bundling device is guaranteed, and particularly, when the power supply cable of the cable bundling device is subjected to large deviation force, the cable bundling device can limit further deviation of the power supply cable, so that the deviation limiting function is achieved, and the buffering and protecting functions are achieved for the power supply cable.

Example 3

The present embodiment provides a dual mode driving electric excavator including an excavator body 1, a power supply cable, and a foldable dual mode driving electric excavator cable restraining device in embodiment 1 or embodiment 2. Wherein the ratchet wheel 22 is rotatably mounted on the excavating machine body 1 and the power supply cable is wound on the cable drum 31. The dual-mode driving electric excavator adopts two power supply modes, wherein one mode is that a power supply cable is used for supplying power, the power supply cable is bundled by the cable bundling device, and the other mode is that the power storage of the electric excavator is used for supplying power, for example, a storage battery pack is used for supplying power to all electronic equipment of the excavator.

Example 4

Referring to fig. 6, the present embodiment provides a dual-mode driving electric excavator, which adds a hydraulic system 2, a power output system 7 and an energy system 6 on the basis of embodiment 3, and further refines the structure of the excavator body 1.

The excavator body 1 comprises a working device 3 and a traveling device 4, and in this embodiment, it further comprises a cab 8, a slewing device 5, an on-board electrical appliance 19, and a voltage conversion module 18. The working device 3 is used for excavating the excavated materials, and the walking device 4 is used for driving the working device 3 to walk. In the present embodiment, the cab 8 is mounted on the running gear 4 and connected to the working device 3. The working device 3 includes a boom, an arm, a bucket, a first cylinder, a second cylinder, and a third cylinder. The movable arm is rotatably arranged on the cab 8, and the first oil cylinder is used for driving the movable arm to rotate relative to the cab 8 through stretching. One end of the bucket rod is hinged to the movable arm, and the other end of the bucket rod is connected with the bucket. The second oil cylinder is used for driving the bucket to stretch relative to the movable arm through stretching, and the third oil cylinder is used for driving the bucket to rotate relative to the bucket rod through stretching so as to dig the dug object. The turning device 5 comprises a turning motor, and two ends of the turning device 5 are respectively fixed on the cab 8 and the traveling device 4 and are used for driving the cab 8 to rotate relative to the traveling device 4. It should be noted that, in the present embodiment, the mechanical operation portions of the work implement 3, the traveling implement 4, and the slewing device 5 may be implemented by existing related devices, and the connection relationships between the boom, the arm, the bucket, the first cylinder, the second cylinder, and the third cylinder may also be implemented by existing connection relationships of an electric excavator, so that the specific connection details of these structures in the present embodiment will not be further detailed, and the work implement 3, the traveling implement 4, and the slewing device 5 shown in the drawings are merely shown as simple structures.

The hydraulic system 2 is used to drive the excavator body 1 to travel, swing, and perform an excavation operation. The power take-off system 7 comprises an electric motor 13 and may further comprise a motor controller, a coupling and a hydraulic pump. The electric motor 13 is used to output a driving force to the hydraulic system 2. In the present embodiment, the hydraulic system 2 includes a hydraulic main pump 12 and a distribution valve 20. The hydraulic main pump 12 is connected to the electric motor 13, and driven by the electric motor 13 to extend and contract. The hydraulic main pump 12 is connected with the distribution valve 20, drives the rotating device 5 to rotate through the distribution valve 20, and drives the first oil cylinder, the second oil cylinder and the third oil cylinder to extend and retract.

The energy source system 6 is used to provide working energy to the power take-off system 7. Wherein, the energy system 6 comprises an operation energy subsystem and a non-operation energy subsystem. The work energy subsystem inputs electrical energy to the electric energy motor 13 via the supply cable. The non-operational energy subsystem includes a battery pack 16 and a voltage transformation inverter 15. The battery pack 16 supplies electric power to the electric motor 13 through the transformer inverter 15.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A cable bundling device of a foldable dual-mode driving electric excavator is used for bundling a power supply cable of the dual-mode electric excavator, and the dual-mode electric excavator comprises an excavator body (1); the cable bundling device comprises:

a cable drum (31) on which the power supply cable is wound (31);

characterized in that, the cable is restrainted device still includes:

the locking mechanism comprises a pawl (21), an elastic reset component, a ratchet wheel (22) and a movable wheel (23); one end of the pawl (21) is provided with at least one ratchet I (24), and the other end of the pawl is rotatably arranged on the excavating machine body (1); the elastic reset assembly is connected with the excavating machine body (1) and the pawl (21), so that the pawl (21) can rotate in a preset rotation range of the excavating machine body (1) and provides elastic restoring force for the pawl (21); the ratchet wheel (22) is rotatably arranged on the excavating machine body (1), and the outer edge of the ratchet wheel is provided with at least one second ratchet tooth (25) matched with the at least one first ratchet tooth (24); at least one stop point (32) is arranged on the ratchet wheel (22); the movable wheel (23) and the ratchet wheel (22) are coaxially arranged and are rotatably arranged on the excavating machine body (1); a groove (33) for the movement of the blocking point (32) is formed on the movable wheel (23); after the ratchet wheel (22) rotates for a preset angle along one direction, the second ratchet (25) is clamped with the first ratchet (24), so that the ratchet wheel (22) stops rotating relative to the excavating machine body (1) through the pawl (21); when the ratchet wheel (22) continues to rotate, the stop point (32) moves from one end of the groove (33) to the other end and drives the movable wheel (23) to rotate towards the other direction, and the movable wheel (23) is driven to jack up the pawl (21), so that the ratchet wheel (22) can rotate relative to the excavating machine body (1); and

the movable supporting mechanism comprises a first movable arm (26), a first pin shaft (27), a second movable arm (28) and a fixed support (29); one end of the first movable arm (26) is fixed on the ratchet wheel (22), and the other end of the first movable arm is rotatably connected with one end of the second movable arm (28) through a first pin shaft (27); the cable drum (31) is rotatably arranged at the other end of the second movable arm (28), and a groove (30) is formed in the side wall of the second movable arm (28) close to the first movable arm (26); one end of the fixed bracket (29) is rotatably arranged on the first movable arm (26), and the other end of the fixed bracket can be buckled in the groove (30).

2. The collapsible dual mode drive electric excavator cable takeup device according to claim 1, wherein the resilient return assembly includes a pretensioned spring (34); one end of a pre-tightening spring (34) is fixed on the other end of the pawl (21), and the other end of the pre-tightening spring (34) is fixed on the excavating machine body (1); the pre-tightening spring (34) is used for providing the elastic restoring force for the pawl (21) so that one end of the pawl (21) has a gripping force towards the axis of the ratchet wheel (22).

3. The collapsible dual mode drive electric excavator cable takeup device according to claim 1, wherein the locking mechanism further comprises a second pin (35); the second pin shaft (35) is inserted on the excavating machine body (1), and the other end of the pawl (21) is installed on the excavating machine body (1) through the second pin shaft (35).

4. The collapsible dual mode drive electric excavator cable takeup device according to claim 1, wherein the first movable arm (26) moves upward relative to the excavator body (1) to rotate the ratchet (22) in one direction and the first movable arm (26) moves downward relative to the excavator body (1) to rotate the ratchet (22) in the other direction.

5. The foldable dual-mode drive electric excavator cable retracting device according to claim 1, wherein the rotating angle of the first movable arm (26) and the second movable arm (28) through the first pin shaft (27) ranges from 0 to 90 degrees; the fixed support (29) is rotatably connected with the first movable arm (26) through a third pin shaft (38), and the value range of the rotating angle is 0-180 degrees.

6. The cable takeup device for a foldable dual mode drive electric excavator according to claim 1, wherein the number of the first ratchet teeth (24) and the second ratchet teeth (25) is the same, and the side of the first ratchet teeth (24) facing the ratchet wheel (22) is arc-shaped concave, and the side of the second ratchet teeth (25) facing the pawl (21) is arc-shaped convex.

7. The cable takeup device for a foldable dual mode drive electric excavator according to claim 1, wherein the distance between the center of the ratchet wheel (22) and the side of the excavator body (1) is the same as the length of the first movable arm (26), and the thickness of the portion of the second movable arm (28) inserted in the groove (30) is the same as the depth of the groove (30).

8. The collapsible dual mode drive electric excavator cable takeup device of claim 1, wherein the dual mode electric excavator further comprises a chassis; the cable bundling device further comprises:

a limiting mechanism which comprises an upper limiting column (36) and a lower limiting column (37); the upper limiting column (36) and the lower limiting column (37) are both arranged on the chassis, and the upper limiting column (36) is positioned above the lower limiting column (37); when the first movable arm (26) moves upwards to a preset limit position, the first movable arm (26) abuts against the upper limit column (36), and when the first movable arm (26) moves downwards to a preset limit position, the second movable arm (26) presses the lower limit column (37) downwards.

9. A dual mode drive electric excavator comprising an excavator body (1) and a power supply cable, characterized in that the dual mode drive electric excavator further comprises a foldable dual mode drive electric excavator cable harness according to any one of claims 1 to 8; wherein, the ratchet wheel (22) is rotatably arranged on the excavating machine body (1), and the power supply cable is wound on the cable drum (31).

10. The dual mode drive electric excavator of claim 9 further comprising a hydraulic system (2), a power take off system (7) and an energy system (6); the hydraulic system (2) is used for driving the excavating machine body (1) to move, rotate and perform excavating operation; the power output system (7) comprises an electric motor (13); the electric motor (13) is used for outputting driving force to the hydraulic system (2); the energy system (6) is used for providing working energy for the power output system (7); the energy system (6) comprises an operation energy subsystem and a non-operation energy subsystem; the operation energy subsystem inputs electric energy to an electric energy motor (13) through the power supply cable; the non-operation energy subsystem comprises a storage battery pack (16) and a voltage transformation inverter (15); the storage battery pack (16) inputs electric energy to the electric energy motor (13) through the voltage transformation inverter (15).