KR20150024072A

KR20150024072A - A bucket blade assembly for an excavator

Info

Publication number: KR20150024072A
Application number: KR20130101047A
Authority: KR
Inventors: 정경래; 서정만; 안종준
Original assignee: 주식회사 경원테크; 정경래
Priority date: 2013-08-26
Filing date: 2013-08-26
Publication date: 2015-03-06

Abstract

The present invention relates to a blade assembly structure formed at the bucket tip of an excavator, and the blade assembly structure of the present invention is constituted at the tip end portion of a bucket and constitutes a blade assembly in which a blade fitting face formed at the rear of the blade is fitted and assembled.
The blade assembly according to the present invention comprises a metal plate body. The blade assembly comprises a support plate fixed to the front of the bottom of the bucket, a blade holder plate fixed to the front upper and lower surfaces of the support plate, and a blade holder between the upper and lower blade holder plates.
A plurality of pin holes corresponding to the fitting surface of the blade and the upper and lower blade holder plates are drilled and the blade assembly pin passing through the pin hole and the spring fixing the blade assembly pin and the lower holder plate constituting the spring seat groove, And can be easily decomposed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bucket blade assembly for an excavator,

The present invention relates to a bucket blade assembly for an excavator used in various civil engineering construction works.

Excavator buckets are used to perform various kinds of work in civil engineering construction work. Excavation work is performed by using a large number of teeth mounted on the tip of a bucket, and the excavation work is performed. A stationary blade is attached to the tip end of the bucket for use in a stationary work.

The present invention relates to an assembly structure of a blade mounted on a bucket used mainly for a stopping operation.

Conventionally, a bucket having various structures of brakes for stopping work has been known.

Korean Patent Publication No. 10-2008-0041443 "Bucket for excavator" (hereinafter referred to as prior art) is known.

The prior art described above allows the stationary blades to be detachable to the bucket of the excavator.

In the configuration of the prior art described above,

A tooth corresponding to a tooth adapter fixed to a bucket is welded to an inner upper surface of a stationary working blade composed of a steel plate of a predetermined size and the tooth is fastened to an adapter so that a stop working blade can be mounted.

However, such a structure is advantageous in that it can be used for excavation by separating the blade for stopping work and assembling the tooth to the tooth adapter, but its structure is very complicated and difficult to manufacture for the stationary work, Since the tooth adapter is only fastened with the locking pin and the locking washer, noise is generated in the coupling part due to the flow of the blade during the stopping operation, and the blade can not be firmly held.

The present invention is intended to solve the problems of the prior art.

The bucket blade assembly structure according to the present invention is mainly manufactured for a stop work or for transporting clay rocks. The structure of the blade assembly part, which is most affected by the stop operation, is strongly improved to assemble the blade easily, It is a problem to be solved by the present invention to prevent the flow or noise of the blades and facilitate the disassembly and assembly when performing the stop work or various other operations by the assembly structure.

According to an aspect of the present invention, there is provided a blade assembly structure formed at a tip end portion of a bucket of an excavator. The blade assembly structure of the present invention includes a blade having a blade insertion surface formed at the tip of the bucket, Assembly.

The blade assembly according to the present invention comprising a metal plate body is constituted by a support plate fixed to the front of the bottom of the bucket, and a blade fitting surface formed between the upper and lower blade holder plates fixed to the upper and lower surfaces of the support plate and the upper and lower blade holder plates.

A plurality of pin holes corresponding to each other are formed in the fitting surface of the blade and the upper and lower blade holder plates, a blade assembly pin passing through the pin hole and a spring fixing the blade assembly pin and a lower blade holder plate, It is possible to assemble and simply disassemble it is a problem solution to be solved by the present invention.

According to the present invention constructed as described above, a solid blade assembly is formed by using a metal plate having a predetermined thickness at the tip end portion of a bucket, and the blade fixedly mounted on the blade assembly is secured by a secure support force by an assembly in which the blade is firmly assembled. The efficiency can be improved, and when the blade is worn or damaged, the blade can be simply replaced and used.

FIG. 1 is a partial sea marine trial of the present invention. FIG.
2 is a perspective view of the blade of the present invention assembled;
3 is a sectional view of the blade of the present invention in a decomposed state.
4 is a sectional view of the blade of the present invention assembled;

A bucket 1 constituted by both side walls 2, a rear surface 3 and a barbed surface 4 so as to be opened and closed on an excavator,

A planar type stationary working blade (10) configured to be detachably attached to a front end portion of a barbed surface (4) of the bucket (1)

A blade fitting surface (11) integrally formed with the blade (10) behind the blade (10)

The blade assembly 20 is welded and fixed to the tip end portion of the barbed surface 4 of the bucket 1 so that the blade-fitting surface 11 can be disassembled and assembled.

The blade assembly 20 includes a support plate 21 fixed to the bar 4 of the bucket 1, upper and lower blade holder plates 22 and 23 fixed to the upper and lower surfaces of the support plate 21, And a blade inserting hole 22 formed between the upper and lower blade holder plates 22,

(24).

A plurality of blade fixing pin holes 11 'are formed in the fitting surface 11 of the blade 10.

A plurality of blade fixing pin holes 11 ', 22', 23 'corresponding to each other are perforated in the upper and lower holder plates 22, 23.

A pin fixing spring seat 23 '' is provided in the pin hole 23 'of the blade lower holder plate 23.

In the drawings, reference numeral 30 denotes a blade fixing pin, reference numeral 31 denotes a spring bite groove, and reference numeral 32 denotes a spring.

The operation and effect of the present invention constituted as described above will be described.

The blade assembly 20 of the present invention is constructed such that the support plate 21 is welded to the front end portion of the bar 4 of the bucket 1 and the blade upper and lower holder plates 22 23 are welded and fixed, a blade fitting hole 24 is formed between the upper and lower holder plates 22, 23 of the blade.

In order to fix the blade 10, the spring 32 is seated in a spring seating groove 23 '' formed in the blade lower holder plate 23,

When the blade fitting surface 11 constituted by the rear of the blade 10 is inserted into the blade fitting hole 24, the fitting surface 11 of the blade 10 and the upper and lower blade holder plates 22, And the pin holes 11 ', 22', and 23 'for fixing the blades to each other coincide with each other.

When the pin 30 is made to coincide and then the pin 30 is forcibly struck and pushed

The spring 32 seated in the spring seating groove 23 '' is fitted in the spring engagement groove 32 formed in the blade fixing pin 30 and the pin is fixed by the spring, The blades are firmly fixed as they are applied to the blades.

The pin fixed by the spring is not easily detached or flowed even when a strong force is applied to the blade, thereby supporting the blade more firmly.

Also, if the blades are broken or worn, the blades can be easily removed because the blades are easily separated by forcibly engaging the blades with the fixing pins. When the blades are formed with the blades of various sizes, blades of various sizes Since the blade assembly composed of the metal plate is fixed to the tip end portion of the bucket, the tip end portion of the bucket which is most likely to come into contact with rocks, stones, You can.

(10): a blade (11): a fitting surface (11 '): a fin
(20): blade assembly (21): support plate (22): upper holder plate (22 '):
(23): lower holder plate (23 '): pin hole (24): blade fitting hole

Claims

A bucket 1 constituted by both side walls 2, a rear surface 3 and a barbed surface 4 so as to be opened and closed on an excavator,
A planar type stationary working blade (10) configured to be detachably attached to a front end portion of a barbed surface (4) of the bucket (1)
A blade fitting surface (11) integrally formed with the blade (10) behind the blade (10)
Further comprising a blade assembly (20) welded and fixed to a front end portion of the bottom surface (4) of the bucket (1) so that the blade fitting surface (11) can be disassembled and assembled.

The method according to claim 1,
The blade assembly 20 includes a support plate 21 fixed to the bar 4 of the bucket 1, upper and lower blade holder plates 22 and 23 fixed to the upper and lower surfaces of the support plate 21, And a blade insertion hole (23) formed between the upper and lower blade holder plates (22, 23)
(24) is provided on the upper surface of the bucket blade assembly (20).

The method according to claim 1,
Wherein a plurality of blade fixing pin holes (11 ') are formed in the fitting surface (11) of the blade (10).

3. The method of claim 2,
And a plurality of blade fixing pin holes (22 ') (23') corresponding to mutually corresponding holes are formed in the upper and lower holder plates (22) and (23).

3. The method of claim 2,
Wherein a pin fixing spring receiving groove (23 '') is formed in the pin hole (23 ') of the blade lower holder plate (23).