Damping element for excavator buckets

Abstract

Embodiments of the invention relate generally to excavating equipment and, more particularly, to a damping element for excavator shovel buckets that improves the protection of its components.

Claims

1. A damping element (1) for buckets (2) with door (4) of cable excavator shovels to cushion shocks of the bucket (2) with a boom (3) of the excavator shovel, improving the protection of the components of said excavator shovel and facilitates the maintenance of the excavator, wherein includes: an elongated metal base (9), hollow inside, comprising joining surfaces (10) at each end to join the upper part of the door (4) of the bucket (2) and a central longitudinal recess (12) that defines an intermediate space (7); two rubber pieces (8) fixed to the metal base (9), said rubber pieces (8) being separated by the intermediate space (7) defined by said central longitudinal recess (12).

2. The damping element (1) according to claim 1, wherein the metal base (9) is formed by the union of welded steel plates.

3. The shock-absorbing element (1) according to claim 1, wherein the rubber parts (8) are of the arch guard type or sections or longitudinal pieces of an arch guard.

4. The damping element (1) according to claim 1, wherein the rubber pieces (8) are fixed to the metal base by means of bolts (14) that go through lateral perforations (11) included in said rubber pieces (8) and screwed into holes with thread (13) included in the metal base (9).

5. A bucket (2) with a door (4) for excavator shovels with a cable to absorb shocks from the bucket (2) with a boom (3) of the excavator shovel, improving the protection of said excavator shovel components and facilitating the maintenance of the excavator shovel, wherein has a damping element (1) mounted, which includes: an elongated metal base (9), hollow inside, comprising joining surfaces (10) at each end and a central longitudinal recess (12) defining an intermediate space (7); two rubber pieces (8) fixed to the metal base (9), said rubber pieces (8) being separated by the intermediate space (7) defined by said central longitudinal recess (12); wherein the damping element (1) is assembled by joining the supports (5) of the bucket door (2) located in the upper part of the outer surface of said door (4) with the joining surfaces (10) of the metallic base (9).

6. The bucket (2) according to claim 5, wherein the joint between the joining surfaces (10) and the supports (5) of the door (4) is a welded joint.

7. The bucket (2) according to claim 5, wherein the metal base (9) is formed by the union of welded steel plates.

8. The bucket (2) according to claim 5, wherein the rubber parts (8) are of the arch guard type or sections or longitudinal pieces of a goal guard.

9. The bucket (2) according to claim 5, wherein the rubber pieces (8) are fixed to the metal base by means of bolts (14) that go through lateral perforations (11) included in said rubber pieces (8) and is screwed into holes with thread (13) included in the metal base (9).

10. A cable shovel comprising a boom (3) having a bucket (2) connected with a door (4) and push cables (6) connected to the bucket (2) to control its inclination, wherein the cable shovel It allows cushioning of the bucket (2) with the boom (3), improving the protection of the components of said excavator shovel and facilitates its maintenance, wherein the bucket (2) has a damping element (1) mounted, which includes: an elongated metal base (9), hollow inside, comprising joining surfaces (10) at each end and a central longitudinal recess (12) defining an intermediate space (7); two rubber pieces (8) fixed to the metal base (9), said rubber pieces (8) being separated by the intermediate space (7) defined by said central longitudinal recess (12); where the damping element (1) is assembled by joining the supports (5) of the bucket door (2) located in the upper part of the outer surface of said door (4) with the joining surfaces (10) of the metallic base (9), and where the push cables (6) remain in the intermediate space (7) of the metal base and between the two rubber pieces (8).

Description

BRIEF DESCRIPTION OF THE FIGURES

[0008] FIG. 1 shows a schematic drawing that shows the arrangement of the damping element in cable blades in the state of the art and the current working height.

[0009] FIG. 2 shows a perspective view of the damping element of the model.

[0010] FIG. 3 shows a form of the rubber piece that corresponds to a goal defense.

[0011] FIG. 4 shows a section of one side of the damping element where the union of the rubber parts with the metal base can be seen.

[0012] FIG. 5 shows a detail of FIG. 4 of the joint of the bolt that joins one of the rubber pieces with the metal base.

[0013] FIG. 6A shows a rear perspective view of a bucket with a damping element installed according to the utility model.

[0014] FIG. 6B shows a side view of a bucket and the position of the damping element when the bucket is in contact with the boom of the excavator.

[0015] FIG. 7 shows the passage of the push cables of the handle through an intermediate space in the damping element when the bucket contacts the boom of the excavator shovel.

[0016] FIG. 8 shows the location of the damping element, according to the utility model, installed in a bucket and the working height.

DETAILED DESCRIPTION OF THE UTILITY MODEL

[0017] The utility model refers to a damping element (1) for a bucket (2) with a door (4) of a cable excavator shovel, which prevents the blows or impacts of said bucket (2) with a boom (3) of the rope excavator shovel during its operation. The cable shovel includes push cables (6) connected to the bucket (2) to control its tilt.

[0018] FIG. 2 shows the damping element (1), according to a preferred modality of the utility model, which comprises a metal base (9) and two rubber pieces (8) on said metal base (9), where said pieces rubber (8) are separated by an intermediate space (7) defined by a central longitudinal recess (12) of the metal base (9). The rubber pieces (8) can be of the arch guard type or sections or longitudinal pieces of a goal guard, as shown in FIG. 3. The metal base (9) corresponds to an elongated element that is formed by the union of welded steel plates so that the damping element (1) is hollow inside and, therefore, lighter, also comprising joining surfaces (10) at each end. To fix the rubber pieces (8) in the metal base, side perforations (11) are included in said rubber pieces (8) and thread perforations (13) in the metal base (9) through which bolts are fixed. (14) that go through the lateral perforations (11) of the rubber pieces (8) and are screwed into the perforations with thread (13) of the metal base (9), as shown in FIGS. 4 and 5.

[0019] The damping element (1) is assembled by means of a welded connection to the supports (5) of the door (4) of the bucket (2) of the cable excavator shovel so that it is located in the upper part of the outer surface of said door. (4) as shown in FIG. 6A. The damping element (1) is joined by welding the joining surfaces (10) at each end of the damping element (1) with the supports (5) of the door (4). In this way, when the bucket (2) approaches the boom (3) of the excavator shovel, the damping element (1) comes into contact with said boom (3) before the structure of the bucket (2), where the rubber parts (8) of the damping element (1) are in contact with the surface of the boom preventing the bucket from impacting and damaging the boom (3) during the operation of the cable excavator shovel, as described shown in FIG. 6B.

[0020] The intermediate space (7) that is formed in the metal base (9) by the central longitudinal recess (12), allows the push cables (6) of the bucket (2) to remain between the two rubber pieces (8), preventing said push cables (6) of the bucket (2) from being damaged during a possible collision between the bucket (2), the excavator shovel and its boom (3) when the push cables (6) remain trapped between the pieces the pen (3) and the bucket (2), as shown in FIG. 7.

[0021] The damping element (1) being assembled by means of a welded connection to the supports (5) of the door (4) of the bucket (2) allows the replacement operation of the damping element (1) to be carried out resting the bucket (2) on the ground or surface, as shown in FIG. 8, so that the damping element is at a height (h) less than the height (H) of the configuration of the damping element (A) available in the prior art, where in addition, access to said damping element (1) is facilitated. In this way, the present utility model allows one or more operators to have to work in an uncomfortable position and at a significant height that has a greater risk and possibility of an accident when proceeding with the replacement of a damping element. With the present damping element (1), it is possible to replace it by mounting it from top to bottom, that is, the damping element (1) is previously raised, to then be brought closer to the bucket (2) and lowered to fix it on the door (4) of the bucket (2), reducing the risk of a suspended load near the operators.