CN220617995U - Cable reel structure and electric excavator - Google Patents

Abstract

The utility model provides a cable drum structure and an electric excavator, which are characterized in that: the cable winding device comprises a winding drum (1) arranged on a traveling device (V), wherein the top of the winding drum (1) is fixedly connected with one end of a cable support, the other end of the cable support is connected with a collecting ring (4), the collecting ring (4) is arranged on the top of the traveling device (V) through a supporting shaft (5) and is electrically connected with the traveling device, and a cable (L) is wound on the periphery of the winding drum (1) and is electrically connected with the collecting ring (4) through the cable support; the automatic winding and unwinding of the cable is realized by using the winding drum, so that the influence and potential safety hazard caused by the fact that the cable is paved on the ground to personnel and vehicles are avoided, the abrasion of the cable moving on the ground is reduced, and the service life of the cable is prolonged.

Description

Cable reel structure and electric excavator

Technical Field

The utility model relates to the technical field of electric excavators, in particular to a cable drum structure and an electric excavator.

Background

As shown in fig. 1, in the prior art, the crawler walking machine such as an electric excavator is provided with a power supply scheme by a cable, a power supply cable L electrically connected with a walking device V is often laid on the ground, the cable laid on the ground can affect the walking of field workers and vehicles and potential safety hazards on the one hand, and on the other hand, the cable needs to move synchronously along with the movement of the excavator, and the cable is rubbed on the ground to easily generate abrasion, so that the service life of the cable is affected.

Accordingly, there is a need to provide a solution to the above-mentioned drawbacks and deficiencies of the prior art.

Disclosure of Invention

Therefore, in order to solve the defects and shortcomings in the prior art, the utility model provides a cable reel structure and an electric excavator.

The technical scheme provided by the utility model is as follows:

a cable drum structure, characterized in that: the cable winding device comprises a winding drum arranged on a travelling device, wherein the top of the winding drum is fixedly connected with one end of a cable support, the other end of the cable support is connected with a collecting ring, the collecting ring is arranged on the top of the travelling device through a supporting shaft and is electrically connected with the travelling device, and a cable is wound on the periphery of the winding drum and is electrically connected with the collecting ring through the cable support.

As a further preferable embodiment of the present utility model, the spool is mounted at a lower vehicle body position of the traveling device, and the slip ring is mounted at an upper vehicle body position of the traveling device.

As a further preferred embodiment of the present utility model, the cable support includes a column and a beam, one end of the column is fixed to the top of the drum, the other end of the column is fixedly connected to one end of the beam, and the other end of the beam is fixed to the top of the slip ring.

As a further preferred embodiment of the present utility model, the cable is threaded out from the top of the drum after being wound around the outer circumference of the drum.

As a further preferred embodiment of the present utility model, the slip ring includes a rotor and a stator, the rotor is located inside the stator and is capable of rotating relative to the stator, the stator is fixedly mounted at the bottom of the other end of the cross beam, and the rotor is movably mounted at the top of the support shaft in a rotatable manner.

As a further preferable embodiment of the utility model, the bottom of the rotor is fixedly connected with a bearing inner ring, and the bearing inner ring is movably mounted on the top of the support shaft.

As a further preferred embodiment of the present utility model, the bottom of the stator is fixedly connected with a bearing outer ring, and the bearing outer ring is fixedly installed on the top of the support shaft.

As a further preferred embodiment of the utility model, the outer wall of the rotor is provided with a plurality of layers of brushes.

As a further preferred embodiment of the utility model, the outer wall of the stator is provided with a cable interface.

Further, the utility model also provides an electric excavator, which is characterized in that: the electric excavator is provided with the cable drum structure.

The beneficial effects obtained by the utility model relative to the prior art include:

1) The utility model provides a cable drum structure and an electric excavator, which realize automatic winding and unwinding of a cable by using a drum, avoid the influence and potential safety hazard caused by laying the cable on the ground to the walking of personnel and vehicles, reduce the abrasion of the cable when moving on the ground, and prolong the service life of the cable.

2) The utility model provides a cable drum structure and an electric excavator, wherein a cable support consisting of upright posts and cross beams is adopted to realize fixed support of cables, a cantilever beam structure adopted by a fixing frame of the existing cables is replaced, and the structure reliability is high.

3) The utility model provides a cable drum structure and an electric excavator, wherein the installation modes of cable transmission and collector ring power transmission are simple and reliable, and the electric excavator has higher economic benefit.

Drawings

Fig. 1 is a schematic diagram of a prior art cable drum structure.

Fig. 2 is a side view of a cable drum structure according to the present utility model.

Fig. 3 is a top view of a cable drum structure according to the present utility model.

Fig. 4 is an enlarged view of the structure of the slip ring of fig. 2.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

First embodiment

Fig. 2-4 show a cable drum structure according to a first embodiment of the present utility model, including a drum 1 mounted on a travelling device V, as shown in fig. 2, the drum 1 in this embodiment is mounted on a lower vehicle body V2 of the travelling device V, the top of the drum 1 is fixedly connected with one end of a cable bracket, the other end of the cable bracket is connected with a collecting ring 4, the collecting ring 4 is mounted on an upper vehicle body V1 of the travelling device V, the collecting ring 4 is mounted on the top of the travelling device V through a supporting shaft 5 and is electrically connected with the travelling device, and a cable L is wound on the periphery of the drum 1 and then electrically connected with the collecting ring 4 through the cable bracket.

The automatic winding and unwinding of the cable is realized by using the winding drum, so that the influence and potential safety hazard caused by the fact that the cable is paved on the ground to personnel and vehicles are avoided, the abrasion of the cable moving on the ground is reduced, and the service life of the cable is prolonged.

As shown in fig. 2, the cable support in this embodiment includes a column 2 and a beam 3, one end of the column 2 is fixed at the top of the drum 1, the other end of the column 2 is fixedly connected with one end of the beam 3, the other end of the beam 3 is fixed at the top of the collecting ring 4, the cable support composed of the column and the beam is used for realizing the fixed support of the cable, and the cantilever beam structure adopted by the fixing frame of the existing cable is replaced, so that the structural reliability is high.

The outside cable L is wound on the periphery of the winding drum 1 and then penetrates out of the top of the winding drum 1, and is electrically connected with the collecting ring 4 after being wound and fixed along the upright post 2 and the cross beam 3, so that the effective positioning of the cable L on the top of the travelling device V is ensured.

As shown in fig. 4, the collecting ring 4 in this embodiment includes a rotor 41 and a stator 42, the rotor 41 is located inside the stator 42 and can rotate relative to the stator 42, the stator 42 is fixedly mounted at the bottom of the other end of the beam 3, the rotor 41 is movably mounted at the top of the supporting shaft 5 in a rotatable manner, multiple layers of brushes 411 are disposed on the outer wall of the rotor 41, a cable interface 421 is disposed on the outer wall of the stator 42, external power is transmitted to the stator 42 through a cable L during rotation of the rotor 41 relative to the stator 42 inside the stator 42, and is transmitted to the rotor 41 through the brushes 411 and finally transmitted to the travelling device V to drive the travelling device V.

As shown in fig. 4, in this embodiment, the bottom of the rotor 41 is fixedly connected with the bearing inner ring 43, and the bearing inner ring 43 is movably mounted on the top of the support shaft 5; the bottom of the stator 42 is fixedly connected with a bearing outer ring 44, the bearing outer ring 44 is fixedly arranged at the top of the supporting shaft 5, and the rotating process of the rotor 41 inside the stator 42 relative to the stator 42 is realized through a bearing structure.

Second embodiment

The present utility model also provides a second embodiment that provides an electric shovel on which the aforementioned one of the cable drum structures is provided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A cable drum structure, characterized in that: including installing in reel (1) of running gear (V), the top and the one end fixed connection of cable support of reel (1), collecting ring (4) are connected to the other end of cable support, collecting ring (4) are installed in running gear (V) top and are connected with running gear electricity through back shaft (5), and cable (L) twine behind reel (1) periphery and are connected with collecting ring (4) electricity through the cable support.

2. A cable drum construction according to claim 1, characterized in that: the winding drum (1) is arranged at the position of a lower vehicle body (V2) of the traveling device (V), and the collecting ring (4) is arranged at the position of an upper vehicle body (V1) of the traveling device (V).

3. A cable drum construction according to claim 1, characterized in that: the cable support comprises an upright post (2) and a cross beam (3), one end of the upright post (2) is fixed at the top of the winding drum (1), the other end of the upright post (2) is fixedly connected with one end of the cross beam (3), and the other end of the cross beam (3) is fixed at the top of the collecting ring (4).

4. A cable drum construction according to claim 1, characterized in that: the cable (L) is wound on the periphery of the winding drum (1) and then penetrates out of the top of the winding drum (1).

5. A cable drum construction according to claim 3, characterized in that: the collecting ring (4) comprises a rotor (41) and a stator (42), wherein the rotor (41) is positioned in the stator (42) and can rotate relative to the stator (42), the stator (42) is fixedly installed at the bottom of the other end of the cross beam (3), and the rotor (41) is movably installed at the top of the supporting shaft (5) in a rotatable mode.

6. A cable drum construction according to claim 5, characterized in that: the bottom of the rotor (41) is fixedly connected with the bearing inner ring (43), and the bearing inner ring (43) is movably mounted at the top of the supporting shaft (5).

7. A cable drum construction according to claim 5, characterized in that: the bottom of the stator (42) is fixedly connected with a bearing outer ring (44), and the bearing outer ring (44) is fixedly arranged at the top of the supporting shaft (5).

8. A cable drum construction according to claim 5, characterized in that: the outer wall of the rotor (41) is provided with a plurality of layers of brushes (411).

9. A cable drum construction according to claim 5, characterized in that: the outer wall of the stator (42) is provided with a cable interface (421).

10. An electric excavator, characterized in that: a cable drum construction according to any one of claims 1-9 provided on said electric shovel.