KR20130076317A

KR20130076317A - Bucket for construction machine

Info

Publication number: KR20130076317A
Application number: KR1020110144863A
Authority: KR
Inventors: 이선미
Original assignee: 볼보 컨스트럭션 이큅먼트 에이비
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2013-07-08

Abstract

The disclosed invention relates to a bucket for construction machinery that has been improved to enhance the durability of the bucket as well as to strengthen the bucket corner portion through load distribution and supporting structure by the integral cutting body and the adapter body,
For construction machinery including a body plate, a side plate formed on the side of the body plate to form a predetermined side wall, a plurality of adapters protruding in the lower portion of the body plate and a bucket lug formed on the body plate In the bucket,
The adapter body is fixed to the body plate closest to the side plate,
The lower portion of the cutting body is integrally formed on the bucket coupling portion extending from the adapter body,
The cutting body is characterized in that it comprises a pair of cutting body support to be fixed in close contact with the outer surface and the inner surface of the side plate.

Description

Bucket for Construction Machine {Bucket For Construction Machine}

The present invention relates to a bucket for a construction machine, and more particularly, to improve the durability of the bucket corner and to improve the durability of the bucket through the load distribution and support structure by the integral cutting body and the adapter body. It relates to a bucket for a construction machine.

In construction machinery including excavators, buckets are used to excavate, dump, or stop the ground for work such as soil and rock, and such buckets can make excavation easier. For example, components that are shaped to make it easier to sell when attached to the ground may be attached.

1 is a side view schematically showing an excavator for a construction machine, and FIG. 2 is a partially enlarged view of the excavator shown in FIG. 1.

Reference numeral 1 schematically shows the cab, 2 is the boom, 3 is the arm, 4 is the bucket cylinder, 5 is the engine compartment, 6 is the undercarriage, 7 is the boom cylinder, 8 is the arm cylinder, and 10 is the bucket. It is shown schematically.

Referring to the drawings, the bucket 10 is configured to include a body plate 11 and the side plate 12, the work object such as earth and sand is contained in the bucket 10. In addition, the lower end side of the body plate 11 is configured with a plurality of bucket teeth 13, the upper portion of the body plate 11, the connecting rod for fixing the bucket to be rotated when the expansion and contraction of the bucket cylinder (4) A bucket lug 16 is configured for connection). The cutter 14 is installed to be in close contact with the outside of the side plate 12 through a bolting process.

In the working process of the bucket 10, the external load is applied to the bucket tooth 11, which is primarily in contact with the object, and serves as a medium for attaching the tooth to the bucket through the tooth 11. The adapter 15 is configured to have a structure in which a load is transmitted to the bucket to cause wear and damage of the material.

Accordingly, the conventional bucket 10 is driven for loading or transporting the work object such as soil or rock in the bucket 10, and additional attachment for entering well when selling the ground, especially during the soil work The required bucket operation is performed through the in cutter 14.

However, the phenomenon that the external load is concentrated in the area adjacent to the lower edge of each side plate 12 connected to the body plate 11 appears. Accordingly, there is a problem that tearing or breaking occurs in the lower edge portion of each side plate 12 during long term use.

The present invention was created to solve the above-mentioned problems, and maintains cutter performance through a cutting blade structure protruding from the upper side to the side plate while reinforcing the lower edge portion of the side plate of the bucket through a component element structurally integrated into the adapter. The purpose is to provide a bucket for construction machinery that can be.

The present invention to achieve the above object,

For construction machinery including a body plate, a side plate formed on the side of the body plate to form a predetermined side wall, a plurality of adapters protruding in the lower portion of the body plate and a bucket lug formed on the body plate In the bucket,

The adapter body is fixed to the body plate closest to the side plate,

The lower portion of the cutting body is integrally formed on the bucket coupling portion extending from the adapter body,

The cutting body is characterized in that it comprises a pair of cutting body support to be fixed in close contact with the outer surface and the inner surface of the side plate.

Preferably, each side plate includes a left side plate and a right side plate, the adapter body is fixed to the lower side of the left side plate and the right side plate, respectively, the cutting body is integrally on the upper side of the bucket engaging portion of the adapter body Characterized in that the construction machine bucket.

In addition, the adapter body includes a tooth coupling portion, the cutting body is characterized in that the construction machine bucket including a cutting portion spaced apart from the tooth coupling portion.

The construction machine bucket 20 according to the present invention has a load distribution and support structure by the integrated cutting body 40 and the adapter body 30, thereby reinforcing the strength of the bucket corner portion and determining the bucket life. This is to improve the wear limit, and ultimately to improve the bucket durability.

1 is a side view schematically showing an excavator for a construction machine,
2 is a partially enlarged view of the excavator shown in FIG.
Figure 3 is a schematic diagram between the construction machine bucket according to an embodiment of the present invention,
FIG. 4 is an exploded perspective view schematically illustrating a state in which an adapter is attached to a side plate edge portion of the bucket illustrated in FIG. 3.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may legally define the concept of a term in order to best describe its invention And it should be construed as meaning and concept consistent with the technical idea of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, reference numeral 20 is a bucket according to the present invention, 21 is a bucket body, 22a is a left plate of the bucket, 22b is a right plate of the bucket, 23 is an adapter attached to the body plate of the bucket, 30 is one of the present invention Adapter body according to the embodiment, 31 is a coupling portion to which the adapter is attached to the bucket, 40 is a cutting body, 41 is a cutting body support, 42 is a schematic representation of the fixing member.

As shown in Figure 3 to 4, in constructing the construction machine bucket 20 according to an embodiment of the present invention, the body plate 21 and the body plate 21 to form a predetermined side wall Side plates 22a and 22b formed at sides of the body, a plurality of adapters 23 protruding from the lower portion of the body plate 21, and bucket lugs 26 formed on the body plate 21. It is configured by.

In the construction of a bucket for a construction machine according to an embodiment of the present invention, the adapter body 30 may be attached to the bucket plate 24 closest to the side plate (22a or 22b), the bucket plate in the attachment process 24 and the adapter body 30 and / or the bucket coupling portion 31 can be attached without the need for a separate coupling form because the coupling body 40 is coupled to the bucket rather than the conventional welding or assembly method.

The adapter body 30 and the cutting body 40 that are integrally constructed in accordance with the present invention are useful for maintaining reinforcement performance under the side plates 22a and 22b of the bucket 20.

Preferably, the cutting body is fixed to the side plates (22a, 22b), the lower portion of the cutting body 40 is integrally formed on the upper side of the bucket coupling portion 31 extending from the adapter body (30). The bucket coupling portion 31 may be fitted to the body plate 21 forming the inlet side of the bucket 20.

The bucket coupling portion 31 is formed on an upper portion of the second bucket coupling portion 32 extending from the adapter body 30.

On the other hand, the cutting body 40 is configured to include a pair of cutting body support (41, 42) in close contact with the outer surface and the inner surface of the side plate (22a, 22b).

Preferably, the side plates 22a and 22b include a left side plate 22a and a right side plate 22b, respectively, and the adapter body 30 is disposed below the left side plate 22a and the right side plate 22b. Each is fixed, the cutting body 40 is suitable to manufacture a cast so as to be integrally configured on the upper side of the bucket coupling portion 31 of the adapter body (30).

The adapter body 30 is configured to include a tooth coupling portion 33 which protrudes and extends toward the bucket coupling portion 31, for example, toward the bucket plate 24.

In forming the cutting body 40 integrally with the adapter body 30, the cutting body 40 includes a cutting part 43 spaced apart from the tooth coupling part 33. The cutting part 43 may be deformed to have various geometries in consideration of wear and cutting performance for a work object.

Hereinafter, the operation and effect of the bucket for a construction machine according to an embodiment of the present invention.

In general, during bucket work, the first contact with the work object, for example, soil, rock or gravel and ground, so that the external load is the side plate that the bucket plate 24 closest to the side plates (22a, 22b) is composed It is a corner part of the lower part, the so-called bucket 20.

The cutting body 40 according to the present invention is fixed to the side plates 22a and 22b at the upper portion of the coupling portion 31 of the adapter and the bucket of the adapter body 30. For example, while the cutting body support part 41 is fixedly attached to the left side plate 22a and the right side plate 22b primarily, the adapter body 30 has a bucket plate 24 through the bucket coupling portion 31. It is fixed to the shape to cover without any fixing in the form of wrapping.

When assembling the cutting body 40 and the respective side plates 22a and 22b, the cutting body supports 41 and 42 of the cutting body 40 are provided on the outer and inner sides of the respective side plates 22a and 22b. It is fastened by the fixing member 42 to be in close contact.

In the bucket 20 according to the present invention, the load concentration phenomenon occurring at the corner portion of the bucket 20 is distributed by the integral structure of the cutting body 40 and the adapter body 30 to distribute the external load.

For example, in the process of excavating the work target, the external load applied through the tooth coupling portion 33 of the adapter is the adapter 23, the bucket coupling portion 31 and the side plates 22a and 22b of the bucket 20. And through the body plate 21.

The cutting body 40 and the adapter body 30, which are integrally manufactured through the casting process, distribute the external load while reinforcing the strength of each side plate 22a, 22b and the bucket coupling portion 31 as bucket corners. In this case, the external load applied to the cutting body 40 is transmitted to the side plates 22a or 22b through the cutting body supports 41 and 42.

Therefore, the construction machine bucket 20 according to the present invention is to configure the load distribution structure through the integral cutting body 40 and the adapter body 30 to reinforce the strength of the bucket corner portion, as well as determine the bucket life. This is to improve the wear limit, and ultimately to improve the bucket durability.

Since the cutter is fixed to the outer surface of the side plate in the related art, it is possible to greatly reduce the wear and damage of the corner of the bucket 20 due to the external load added during the cutting process, as well as to weld defects in the bucket goner region. It will be understood to have the advantage of preventing the resulting breakage.

While the above embodiments have been described in detail with reference to the accompanying drawings and embodiments, the accompanying drawings and the embodiments are illustrative and explanatory in order to facilitate understanding of the present invention by those skilled in the art . Accordingly, the above-described embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention should be construed in accordance with the invention as set forth in the appended claims, Various modifications, alternatives, and equivalents according to the present invention.

10, 20: bucket
11, 21: bucket body
13, 23: bucket tooth
16, 26: bucket lug
30: adapter body
31: bucket coupling
40: cutting body
41: cutting body support
42: fixing member

Claims

For construction machinery including a body plate, a side plate formed on the side of the body plate to form a predetermined side wall, a plurality of adapters protruding in the lower portion of the body plate and a bucket lug formed on the body plate In the bucket,
The adapter body is fixed to the body plate closest to the side plate,
The lower portion of the cutting body is integrally formed on the bucket coupling portion extending from the adapter body,
The cutting body is a bucket for a construction machine, characterized in that it comprises a pair of cutting body support to be fixed in close contact with the outer surface and the inner surface of the side plate.

The method of claim 1,
Each side plate includes a left side plate and a right side plate, wherein the adapter body is fixed to the lower side of the left side plate and the right side plate, respectively, and the cutting body is integrally formed on the upper side of the bucket coupling portion of the adapter body. Buckets for construction machinery.

The method of claim 2,
The adapter body includes a tooth coupling portion, the cutting body is a bucket for a construction machine, characterized in that it comprises a cutting portion spaced apart from the tooth coupling portion.