Excavator electric trailing device and excavator

Abstract

The utility model relates to the technical field of engineering machinery provides a kind of excavator and excavator drag electricity device, excavator drag electricity device includes: fixed seat, horizontal adjusting mechanism and height adjusting mechanism.Fixed seat is configured to be fixed to excavator, and fixed seat is equipped with first inner chamber and the cable inlet being communicated with first inner chamber;Horizontal adjusting mechanism is set to fixed seat, and horizontal adjusting mechanism is equipped with second inner chamber;Height adjusting mechanism is set to horizontal adjusting mechanism, and height adjusting mechanism is equipped with third inner chamber and the cable outlet being communicated with third inner chamber;First inner chamber, second inner chamber and third inner chamber are sequentially communicated to form the passage for the cable of external connection to pass;Horizontal adjusting mechanism is used for adjusting the position of height adjusting mechanism relative to excavator along horizontal direction;Height adjusting mechanism is used for adjusting the position of cable outlet relative to excavator along height direction.Construction personnel can adjust the attitude of excavator drag electricity device according to actual demand, so that construction operation is more smooth.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to an excavator traction device and an excavator. Background Technology

[0002] In related technologies, electric excavators typically need to be connected to an external power supply via a cable to receive power. To reduce wear and tear on the cable caused by dragging it on the ground, supports are usually installed to hold the cable. However, due to the complex and varied operating environment of excavators, the main excavator often needs to rotate relative to the undercarriage during operation. Existing supports, with their relatively fixed positions, are difficult to adapt to complex operating environments and the frequent rotation of the excavator's main body, which can easily affect the efficiency of construction operations. Utility Model Content

[0003] This utility model provides an excavator power supply device and an excavator to solve the problems in the prior art where the cable support is relatively fixed in position, making it difficult to adapt to complex working environments and the frequent rotation of the excavator host, which easily affects the efficiency of construction operations.

[0004] In a first aspect, this utility model provides an excavator traction device, comprising: A mounting base is configured to be fixed to an excavator, the mounting base having a first inner cavity and a cable inlet communicating with the first inner cavity; A horizontal adjustment mechanism is provided on the fixed base, and the horizontal adjustment mechanism has a second inner cavity; A height adjustment mechanism is provided in the horizontal adjustment mechanism. The height adjustment mechanism has a third inner cavity and a cable outlet communicating with the third inner cavity. The first inner cavity, the second inner cavity and the third inner cavity are sequentially connected to form a channel for external cables to pass through. The horizontal adjustment mechanism is used to adjust the position of the height adjustment mechanism relative to the excavator in the horizontal direction; the height adjustment mechanism is used to adjust the position of the cable outlet relative to the excavator in the vertical direction.

[0005] According to the excavator traction device of this utility model, the horizontal adjustment mechanism includes: A sliding component is connected to the fixed base; A deflection component is disposed on the sliding component and connected to the height adjustment mechanism; the sliding component is used to drive the deflection component to move along the front-rear direction of the excavator; the deflection component is used to drive the height adjustment mechanism to swing about the vertical axis.

[0006] According to the excavator traction device of this utility model, the sliding assembly includes: A sliding seat is slidably disposed on the fixed seat along the front-rear direction of the excavator and connected to the deflection assembly; the sliding seat has a second inner cavity formed therein. A first driving member is disposed on the fixed base and is connected to the sliding base in a transmission manner. The first driving member is used to drive the sliding base to slide along the front-rear direction of the excavator.

[0007] According to the excavator traction device of this utility model, a portion of the fixed base is inserted into the second inner cavity; the first driving member is sequentially inserted into the first inner cavity and the second inner cavity.

[0008] According to the excavator traction device of this utility model, a guide mechanism is provided on the cavity wall of the second inner cavity. The guide mechanism abuts against the outer wall of the fixed seat and is used to guide the sliding seat to slide relative to the fixed seat in the front-rear direction of the excavator.

[0009] According to the excavator traction device of this utility model, the deflection assembly includes: A deflection seat is rotatably mounted on the sliding seat about a vertical axis and is connected to the height adjustment mechanism; The second driving member is disposed on the sliding seat and is connected to the deflection seat in a transmission manner. The second driving member is used to drive the deflection seat to rotate about the vertical axis.

[0010] According to the excavator traction device of this utility model, the height adjustment mechanism includes: An adjusting arm is rotatably disposed on the horizontal adjusting mechanism about a horizontal axis, and the adjusting arm is configured with the third inner cavity and the cable outlet; The third driving component is disposed in the horizontal adjustment mechanism and is connected to the adjustment arm in a transmission manner. The third driving component is used to drive the adjustment arm to rotate around the horizontal axis.

[0011] According to the excavator traction device of this utility model, the adjusting arm includes: The first part is rotatably connected to the horizontal adjustment mechanism; The second part is bent and connected to the first part; the inner cavity of the first part and the inner cavity of the second part are connected to form the third inner cavity, and the cable outlet is located in the second part.

[0012] According to the excavator power supply device of this utility model, a roller is provided on the edge of the cable outlet, and the roller is used to make rolling contact with the external cable.

[0013] Secondly, this utility model also provides an excavator, comprising: The undercarriage assembly, main unit, external cables, and excavator power supply as described in any of the above items; The main unit is located in the lower vehicle assembly, and the external cable is connected to the pipelines in the lower vehicle assembly and the pipelines in the main unit, respectively; the fixed base is located in the lower vehicle assembly, and the external cable passes through the channel to connect to external equipment.

[0014] This utility model discloses an excavator power cable carrier. By fixing a fixed base to the excavator and sequentially connecting the fixed base, a horizontal adjustment mechanism, and a height adjustment mechanism to form a complete support structure, a channel formed inside the support structure allows the excavator's external cable to pass through and connect to external equipment, providing support and protection for the external cable. Simultaneously, the horizontal adjustment mechanism located on the fixed base and the height adjustment mechanism located on the horizontal adjustment mechanism can cooperate to adjust the posture of the excavator power cable carrier and the internal channel in both horizontal and vertical directions. This allows construction personnel to adjust the posture of the excavator power cable carrier according to actual needs, making construction operations smoother. This effectively solves the problem in existing technologies where the cable support position is relatively fixed, making it difficult to adapt to complex working environments and the frequent rotation of the excavator, which easily affects the efficiency of construction operations. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a partial structural schematic diagram of the excavator provided in an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the excavator traction device provided in an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the fixed base and horizontal adjustment mechanism provided in this embodiment of the utility model.

[0019] Figure 4 This is a schematic diagram of the deflection seat provided in an embodiment of the present utility model.

[0020] Figure 5 This is a schematic diagram of the deflection seat and height adjustment mechanism provided in this embodiment of the utility model.

[0021] Figure 6 This is a schematic diagram of the current collector central rotary joint pipeline system provided in this embodiment of the utility model.

[0022] Figure label: 1. Excavator traction power supply; 11. Fixture; 12. Horizontal adjustment mechanism; 121. Sliding assembly; 1211. Sliding seat; 1212. First driving member; 1213. Guide mechanism; 122. Deflection assembly; 1221. Deflection seat; 1222. Second driving member; 13. Height adjustment mechanism; 131. Adjusting arm; 1311. First part; 1312. Second part; 132. Third drive component; 133. Roller; 2. Lower assembly; 3. External cable; 4. Central rotary joint piping system. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] The following is combined Figures 1-6 This invention describes an excavator traction device.

[0025] Firstly, such as Figure 1 As shown, this utility model provides an excavator power supply device 1, including: a fixed base 11, a horizontal adjustment mechanism 12, and a height adjustment mechanism 13. The fixed base 11 is configured to be fixed to the excavator, and the fixed base 11 has a first inner cavity and a cable inlet communicating with the first inner cavity; the horizontal adjustment mechanism 12 is disposed on the fixed base 11, and the horizontal adjustment mechanism 12 has a second inner cavity; the height adjustment mechanism 13 is disposed on the horizontal adjustment mechanism 12, and the height adjustment mechanism 13 has a third inner cavity and a cable outlet communicating with the third inner cavity; the first inner cavity, the second inner cavity, and the third inner cavity are sequentially connected to form a channel for an external cable 3 to pass through; the horizontal adjustment mechanism 12 is used to adjust the position of the height adjustment mechanism 13 relative to the excavator in the horizontal direction; the height adjustment mechanism 13 is used to adjust the position of the cable outlet relative to the excavator in the vertical direction.

[0026] In this embodiment, the fixed seat 11 is used to be fixedly installed on the body of the excavator, for example, it can be installed on the undercarriage assembly 2 of the excavator. The fixed seat 11, the horizontal adjustment mechanism 12 and the height adjustment mechanism 13 are connected in sequence to form a complete support structure. The fixed seat 11 has a first inner cavity, the horizontal adjustment mechanism 12 has a second inner cavity, and the height adjustment mechanism 13 has a third inner cavity. The three inner cavities are connected in sequence to form a complete channel, so that the external cable 3 of the excavator can enter the channel from the cable inlet on one side of the fixed seat 11, pass through the channel and exit from the cable outlet on the side of the height adjustment mechanism 13, so as to connect with external equipment (such as external power supply, power supply vehicle, etc.). The entire excavator power supply device 1 can support and protect the external cable 3 of the excavator that extends outward, and prevent the external cable 3 from falling to the ground.

[0027] Meanwhile, the horizontal adjustment mechanism 12 can adjust the relative position of the height adjustment mechanism 13 and the excavator in the horizontal direction, and the height adjustment mechanism 13 can adjust the relative position of the cable outlet and the excavator in the vertical direction. In other words, the horizontal adjustment mechanism 12 and the height adjustment mechanism 13 can cooperate with each other to adjust the posture of the excavator's power supply device 1 and the internal channel in multiple dimensions, thereby controlling the posture of the external cable 3 extending outward from the excavator. This allows construction personnel to adjust the posture of the excavator's power supply device 1 and the external cable 3 according to the excavator's working environment and conditions, protecting the external cable 3 while reducing the interference of the excavator's power supply device 1 and the external cable 3 on the excavator's operation, making the construction operation smoother.

[0028] The excavator power cable carrier 1 of this utility model is formed by fixing the fixed base 11 to the excavator and connecting the fixed base 11, the horizontal adjustment mechanism 12 and the height adjustment mechanism 13 in sequence to form a complete support structure. The channel formed inside the support structure allows the external cable 3 of the excavator to pass through and connect to external equipment, and provides support and protection for the external cable 3. At the same time, the horizontal adjustment mechanism 12 and the height adjustment mechanism 13 located on the fixed base 11 can cooperate with each other to adjust the posture of the excavator power cable carrier 1 and the internal channel in the horizontal and vertical directions. This allows the construction personnel to adjust the posture of the excavator power cable carrier 1 according to actual needs, making the construction operation smoother. It effectively solves the problem that the cable bracket is relatively fixed in position in the prior art, which is difficult to adapt to complex working environments and the frequent rotation of the excavator host, which easily affects the efficiency of construction operations.

[0029] Optionally, the horizontal adjustment mechanism 12 can adjust the position of the height adjustment mechanism 13 in a single direction, or it can adjust the position of the height adjustment mechanism 13 in multiple directions.

[0030] Specifically, in some embodiments, such as Figure 2 and Figure 3 As shown, the horizontal adjustment mechanism 12 includes: a sliding component 121 and a deflection component 122; the sliding component 121 is connected to the fixed base 11; the deflection component 122 is disposed on the sliding component 121 and connected to the height adjustment mechanism 13; the sliding component 121 is used to drive the deflection component 122 to move along the front-back direction of the excavator; the deflection component 122 is used to drive the height adjustment mechanism 13 to swing around the vertical axis.

[0031] In this embodiment, the sliding component 121 is disposed on the fixed base 11 and can slide along the front-rear direction of the excavator (i.e., the forward or backward direction of the excavator) based on the fixed base 11 to adjust the position of the deflection component 122. The deflection component 122 drives the height adjustment mechanism 13 to move along the front-rear direction of the excavator. The deflection component 122 can drive the height adjustment mechanism 13 to swing around the vertical axis to adjust the angle formed between the height adjustment mechanism 13 and the horizontal adjustment mechanism 12 in the horizontal plane. The sliding component 121 and the deflection component 122 can cooperate with each other to flexibly adjust the posture of the entire excavator power supply device 1 in the horizontal plane.

[0032] Specifically, in some embodiments, such as Figure 2 As shown, the sliding assembly 121 includes a sliding seat 1211 and a first driving member 1212. The sliding seat 1211 is slidably disposed on the fixed seat 11 along the front-rear direction of the excavator and is connected to the deflection assembly 122. A second inner cavity is formed inside the sliding seat 1211. The first driving member 1212 is disposed on the fixed seat 11 and is connected to the sliding seat 1211 in a transmission manner. The first driving member 1212 is used to drive the sliding seat 1211 to slide along the front-rear direction of the excavator.

[0033] In this embodiment, the sliding seat 1211 is slidably disposed on the fixed seat 11. It can be understood that the second inner cavity inside the sliding seat 1211 is a through cavity so as to communicate with the first inner cavity and the third inner cavity respectively. The first driving member 1212 is disposed on the fixed seat 11 and uses the fixed seat 11 as a support base to drive the sliding seat 1211 to slide on the fixed seat 11, thereby driving the deflection component 122 and the height adjustment mechanism 13 to slide along the front and rear direction of the excavator, so as to realize the attitude adjustment of the entire excavator power supply device 1.

[0034] Optionally, a slide rail or slide path may be provided on the sliding seat 1211 or the fixed seat 11 so that the sliding seat 1211 can be slidably disposed on the fixed seat 11.

[0035] Alternatively, in some embodiments, such as Figure 3 As shown, part of the fixing seat 11 is inserted into the second inner cavity; the first driving member 1212 is sequentially inserted into the first inner cavity and the second inner cavity.

[0036] In this embodiment, the shape of the second cavity of the sliding seat 1211 is adapted to the fixed seat 11 and extends along the front-rear direction of the excavator, so that part of the structure of the fixed seat 11 can be inserted into the sliding seat 1211, and the fixed seat 11 can move relative to the sliding seat 1211 along the second inner cavity. The first driving member 1212 passes through the first inner cavity and the second inner cavity, and is connected to the fixed seat 11 and the sliding seat 1211 respectively. The structure is compact, convenient and practical.

[0037] For example, the first driving component 1212 can be a telescopic hydraulic cylinder. The cylinder body is located in the first inner cavity and is fixedly connected to the fixed seat 11. The piston rod extends from the cylinder body and extends into the second inner cavity to connect with the sliding seat 1211. Under the action of hydraulic pressure in the cylinder body, the piston rod extends and retracts relative to the cylinder body to drive the sliding seat 1211 to slide relative to the fixed seat 11. The structure is simple and convenient to use. The cylinder body and the fixed seat 11, and the piston rod and the sliding seat 1211 can be connected by a pin and a pin hole.

[0038] Alternatively, in some embodiments, such as Figure 3 As shown, a guide mechanism 1213 is provided on the cavity wall of the second inner cavity. The guide mechanism 1213 abuts against the outer wall of the fixed seat 11 and is used to guide the sliding seat 1211 to slide relative to the fixed seat 11 in the front-back direction of the excavator.

[0039] In this embodiment, the guide mechanism 1213 can be a guide block or a guide wheel, which is disposed on the cavity wall of the second inner cavity and contacts the fixed seat 11. While supporting the fixed seat 11, it reduces the friction force on the fixed seat 11, making the relative sliding between the fixed seat 11 and the sliding seat 1211 more stable and smooth.

[0040] In one specific embodiment, such as Figure 3 As shown, the guide mechanism 1213 includes multiple sets of guide blocks, each set of guide blocks including multiple guide blocks; each set of multiple guide blocks surrounds the outer wall of the fixed seat 11, and the multiple sets of guide blocks are arranged at intervals along the extension direction of the second inner cavity.

[0041] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, the deflection assembly 122 includes a deflection seat 1221 and a second drive member 1222. The deflection seat 1221 is rotatably mounted on the sliding seat 1211 about a vertical axis and is connected to the height adjustment mechanism 13; the second drive member 1222 is disposed on the sliding seat 1211 and is connected to the deflection seat 1221 in a transmission manner, and the second drive member 1222 is used to drive the deflection seat 1221 to rotate about the vertical axis.

[0042] In this embodiment, the deflection seat 1221 is located between the sliding seat 1211 and the height adjustment mechanism 13, serving as a transitional connection between the two. The second driving member 1222 is located on the sliding seat 1211, using the sliding seat 1211 as a support base, and drives the deflection seat 1221 to rotate relative to the sliding seat 1211, thereby causing the height adjustment mechanism 13 to swing around the vertical axis, thus realizing the attitude adjustment of the entire excavator power supply device 1.

[0043] In one specific embodiment, a cylinder mounting seat is provided on the outer wall of the sliding seat 1211, and the second driving member 1222 is a deflection cylinder. The cylinder body and the cylinder mounting seat are rotatably connected by a pin and a pin hole. The piston rod and the deflection seat 1221 are rotatably connected by a pin and a pin hole. Under the action of the oil pressure in the cylinder body, the piston rod extends and retracts relative to the cylinder body to drive the deflection seat 1221 to swing relative to the sliding seat 1211. The structure is simple and convenient to use.

[0044] In some embodiments, such as Figure 2 and Figure 5 As shown, the height adjustment mechanism 13 includes: an adjustment arm 131 and a third drive member 132; the adjustment arm 131 is rotatably disposed on the horizontal adjustment mechanism 12 about a horizontal axis, and the adjustment arm 131 has a third inner cavity and a cable outlet; the third drive member 132 is disposed on the horizontal adjustment mechanism 12 and is connected to the adjustment arm 131 in a transmission manner, and the third drive member 132 is used to drive the adjustment arm 131 to rotate about the horizontal axis.

[0045] In this embodiment, the adjusting arm 131 is mounted on the horizontal adjusting mechanism 12 (as in the aforementioned embodiment, the deflection seat 1221) and can rotate relative to the deflection seat 1221; the third driving member 132 can also be mounted on the deflection seat 1221 of the horizontal adjusting mechanism 12, using the deflection seat 1221 as a support base, driving the adjusting arm 131 to rotate relative to the deflection seat 1221 around the horizontal axis, adjusting the angle between the third inner cavity and the horizontal direction, and adjusting the height position of the cable outlet.

[0046] In one specific embodiment, the deflection seat 1221 is provided with a hydraulic cylinder mounting seat, and the third driving component 132 is a lifting hydraulic cylinder. The cylinder body and the hydraulic cylinder mounting seat are rotatably connected by a pin and a pin hole. The piston rod and the adjusting arm 131 are rotatably connected by a pin and a pin hole. Under the action of the hydraulic pressure in the cylinder body, the piston rod extends and retracts relative to the cylinder body to drive the adjusting arm 131 to swing relative to the deflection seat 1221. The structure is simple, convenient and practical.

[0047] It is understandable that the deflection seat 1221 is rotatably connected to the sliding seat 1211, the second driving member 1222, the third driving member 132 and the adjusting arm 131 respectively. Each hinge point of the deflection seat 1221 can be exposed on the outside of the deflection seat 1221, which facilitates relevant personnel to carry out maintenance, disassembly and assembly operations on the hinge points.

[0048] In some embodiments, such as Figure 5 As shown, the adjusting arm 131 includes: a first part 1311 and a second part 1312; the first part 1311 is rotatably connected to the horizontal adjusting mechanism 12; the second part 1312 is bent and connected to the first part 1311; the inner cavity of the first part 1311 and the inner cavity of the second part 1312 are connected to form a third inner cavity, and the cable outlet is located in the second part 1312. In this embodiment, the adjusting arm 131 is not straight, but is formed by bending and connecting the first part 1311 and the second part 1312, which facilitates the adjustment of the posture of the external cable 3.

[0049] Optionally, in some embodiments, a roller 133 is provided at the edge of the cable outlet, and the roller 133 is used to make rolling contact with the external cable 3. In this embodiment, by providing a roller 133 at the cable outlet, the roller 133 can make rolling contact with the external cable 3 at the outlet, thereby reducing the wear on the external cable 3 at the cable outlet.

[0050] In one specific embodiment, such as Figure 2 and Figure 5 As shown, the cable outlet is rectangular, and each side of the rectangular outlet is provided with a roller 133, with the roller 133's axis of rotation extending along the corresponding side.

[0051] It is understandable that the controllers of the first drive unit 1212, the second drive unit 1222, and the third drive unit 132 can be integrated into the control system of the excavator itself. Before or during construction operations, the construction personnel can control the stroke of the first drive unit 1212, the second drive unit 1222, and the third drive unit 132 through the operation panel on the excavator to adjust the attitude of the excavator's power supply device 1, so that the attitude of the excavator's power supply device 1 and the external cable 3 can meet the operational requirements and avoid interference with the construction operation caused by the excavator's power supply device 1 and the external cable 3.

[0052] Optionally, in some embodiments, the excavator power supply device 1 may also be equipped with a panoramic detection camera. The excavator's control system can adjust the stroke of the first drive component 1212, the second drive component 1222, and the third drive component 132 in real time according to the images collected by the panoramic detection camera, so that the posture of the excavator power supply device 1 and the external cable 3 can meet the operation requirements.

[0053] Secondly, this utility model also provides an excavator, such as Figure 1As shown, the device includes: a lower carriage assembly 2, a main unit (not shown in the figure), an external cable 3, and an excavator power supply device 1 as provided in any of the above embodiments. The excavator of this invention, by employing the aforementioned excavator power supply device 1, also possesses the advantages of the aforementioned excavator power supply device 1, which will not be elaborated further here. The main unit is located on the lower carriage assembly 2, and the external cable 3 is connected to the pipelines within the lower carriage assembly 2 and the pipelines within the main unit, respectively. The fixed base 11 is located on the lower carriage assembly 2, and the external cable 3 passes through a channel to connect to external equipment.

[0054] The structure of the undercarriage assembly 2 in this embodiment is similar to that of a conventional excavator undercarriage, including idler wheels, track rollers, carrier rollers, drive wheels, track assembly, tensioning device, traveling mechanism, traveling frame, and track guard mechanism. The excavator's power supply device 1 is arranged at the rear of the traveling frame. The main unit is rotatably mounted on the traveling frame. It can be understood that the main unit includes the excavator's cab, robotic arm, and other parts.

[0055] like Figure 1 and Figure 6 As shown, a central rotary joint piping system 4 is installed between the main unit and the undercarriage assembly 2. The central rotary joint piping system 4 includes: a central rotary joint and a power collection device connected in series, and an intermediate connecting main cable. The intermediate connecting main cable is connected to the electrical / hydraulic lines of the main unit and the undercarriage assembly 2 respectively. The power collection device consists of a camera data acquisition harness, a spare cable harness, and a power collection device structural component. The camera data acquisition harness is used to connect the panoramic detection camera and the excavator's control system. The spare cable harness is used to connect the first drive component 1212, the second drive component 1222, and the third drive component 132 to the excavator's control system. The central rotary joint consists of an upper fixed end and a lower fixed end. The upper fixed end is connected to the power collection device structural component, and the lower fixed end is used for fixed connection to the traveling frame.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An excavator towed electrical device, characterized in that, include: A mounting base is configured to be fixed to an excavator, the mounting base having a first inner cavity and a cable inlet communicating with the first inner cavity; A horizontal adjustment mechanism is provided on the fixed base, and the horizontal adjustment mechanism has a second inner cavity; A height adjustment mechanism is provided in the horizontal adjustment mechanism. The height adjustment mechanism has a third inner cavity and a cable outlet communicating with the third inner cavity. The first inner cavity, the second inner cavity and the third inner cavity are sequentially connected to form a channel for external cables to pass through. The horizontal adjustment mechanism is used to adjust the position of the height adjustment mechanism relative to the excavator in the horizontal direction; the height adjustment mechanism is used to adjust the position of the cable outlet relative to the excavator in the vertical direction.

2. The excavator traction device according to claim 1, characterized in that, The horizontal adjustment mechanism includes: A sliding component is connected to the fixed base; A deflection component is disposed on the sliding component and connected to the height adjustment mechanism; the sliding component is used to drive the deflection component to move along the front-rear direction of the excavator; the deflection component is used to drive the height adjustment mechanism to swing about the vertical axis.

3. The excavator traction device according to claim 2, characterized in that, The sliding component includes: A sliding seat is slidably disposed on the fixed seat along the front-rear direction of the excavator and connected to the deflection assembly; the sliding seat has a second inner cavity formed therein. A first driving member is disposed on the fixed base and is connected to the sliding base in a transmission manner. The first driving member is used to drive the sliding base to slide along the front-rear direction of the excavator.

4. The excavator traction device according to claim 3, characterized in that, The fixed base is partially inserted into the second inner cavity; the first driving member is sequentially inserted into the first inner cavity and the second inner cavity.

5. The excavator traction device according to claim 4, characterized in that, The second inner cavity is provided with a guide mechanism on its cavity wall. The guide mechanism abuts against the outer wall of the fixed seat and is used to guide the sliding seat to slide relative to the fixed seat in the front-back direction of the excavator.

6. The excavator traction device according to claim 3, characterized in that, The deflection component includes: A deflection seat is rotatably mounted on the sliding seat about a vertical axis and is connected to the height adjustment mechanism; The second driving member is disposed on the sliding seat and is connected to the deflection seat in a transmission manner. The second driving member is used to drive the deflection seat to rotate about the vertical axis.

7. The excavator traction device according to claim 1, characterized in that, The height adjustment mechanism includes: An adjusting arm is rotatably disposed on the horizontal adjusting mechanism about a horizontal axis, and the adjusting arm is configured with the third inner cavity and the cable outlet; The third driving component is disposed in the horizontal adjustment mechanism and is connected to the adjustment arm in a transmission manner. The third driving component is used to drive the adjustment arm to rotate around the horizontal axis.

8. The excavator traction device according to claim 7, characterized in that, The adjusting arm includes: The first part is rotatably connected to the horizontal adjustment mechanism; The second part is bent and connected to the first part; the inner cavity of the first part and the inner cavity of the second part are connected to form the third inner cavity, and the cable outlet is located in the second part.

9. The excavator traction device according to claim 1, characterized in that, The edge of the cable outlet is provided with a roller, which is used to make rolling contact with the external cable.

10. An excavator, characterized in that, include: The undercarriage assembly, the main unit, the external cable, and the excavator power supply device as described in any one of claims 1-9; The main unit is located in the lower vehicle assembly, and the external cable is connected to the pipelines in the lower vehicle assembly and the pipelines in the main unit, respectively; the fixed base is located in the lower vehicle assembly, and the external cable passes through the channel to connect to external equipment.

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