JP2002275950A - Abrasion gage for bucket claw - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an abrasion gage for a bucket claw, which facilitates inspection of the degree of abrasion of the claw. SOLUTION: The abrasion gage 5 is attached to the claw 3 which is removably mounted on a claw adapter 2 of a bucket, to thereby inspect the degree of abrasion of the claw 3. The abrasion gage 5 is formed of a transparent plate, and has indicating means 6a to 6d marked thereon at predetermined locations from the tip of the plate, for indicating abrasion critical locations for the tip of the claw to be exchanged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bucket claw wear gauge for checking the degree of claw wear by contacting a claw detachably attached to a claw adapter of a bucket in an excavator such as a hydraulic excavator.

[0002]

2. Description of the Related Art A bucket claw of a hydraulic shovel is detachably attached to a claw adapter which is welded side by side to the tip of a bucket body. As the service life of the excavator elapses,
The nails wear. As the wear of the claws progresses and the wear progresses to the adapter, the labor and costly work of fusing the nail adapter from the bucket body and welding a new nail adapter is required. Need to be replaced with a new nail before reaching.

Conventionally, in order to check the degree of wear of the claws,
Using a graduated ruler, measure the length from the base end to the tip of the nail and compare it with the nail wear value recorded in the table prepared in advance to determine whether to replace the nail. I was judging.

[0004]

As described above, conventionally, the size of the nail is measured with a ruler and compared with a numerical value recorded in a table in advance to determine whether or not the nail should be replaced.
There is a problem that inspection is troublesome.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a bucket claw wear gauge capable of easily checking the degree of claw wear.

[0006]

According to a first aspect of the present invention, there is provided a bucket claw wear gauge for checking a degree of wear of a claw by contacting a claw detachably attached to a claw adapter of a bucket. And a display means for displaying a wear limit position of a tip of a nail to be replaced with a nail at a predetermined position from an end of the plate material.

As described above, by providing the display means for displaying the wear limit position of the tip of the nail whose nail is to be replaced, the position of the tip of the nail and the display means such as a mark can be adjusted by adjusting the wear gauge to the nail. It is possible to know at a glance whether or not the wear has reached the limit position simply by comparing, and the wear inspection becomes easy.

In a second aspect of the present invention, there is provided a bucket claw wear gauge, wherein the wear gauge is provided with a display means for displaying a tip position of the claw in a new state of the claw.

[0009] Thus, by keeping to view the tip position of the new state to wear gauge, it is possible to know the proportion of up gap between the wear limit position of the current position, as opposed to the life of the excavator This makes it easier to predict when to replace the nails. According to a third aspect of the present invention, in the bucket claw wear gauge according to the first or second aspect, a plurality of display means corresponding to a model are provided as the display means.

As described above, by making one wear gauge correspond to a plurality of models, one or less kinds of wear gauges can be manufactured for a manufacturer, and one or less kinds of wear gauges are required for a user. Economical achievement is achieved by purchasing different types of wear gauges.

According to a fourth aspect of the present invention, there is provided a bucket claw wear gauge according to any one of the first to third aspects, wherein the outer shape of the wear gauge has a claw shape.

As described above, if the outer shape of the wear gauge is adjusted to the shape of the nail, the positioning of the nail and the wear gauge becomes easy.

According to a fifth aspect of the present invention, there is provided a bucket claw wear gauge according to any one of the first to fourth aspects, wherein the wear gauge is provided with a display means for displaying a claw fitting portion for fitting the claw. And

[0014] In this way, if you display the claw fitting portion,
It is possible to know how much remains up to the nail fitting portion, and it is possible to know whether the wear has progressed and the wear has reached the nail fitting portion.

[0015]

FIG. 1 is a perspective view showing a bucket of a hydraulic shovel for checking a wear state using a wear gauge according to the present invention. In FIG. 1, 1 is a bucket body, 2
Is a nail adapter welded to the tip, 2a is a nail fitting portion, 3
Is a claw fitted into the claw fitting portion 2a and fixed by the stopper pin 4.

FIG. 2A is a side view showing an embodiment of a wear gauge according to the present invention, and FIG. 2B is a plan view thereof. The wear gauge 5 is made of a plate made of a transparent material such as resin, and in this embodiment, the wear gauge 5 is formed substantially in the shape of a side surface of a nail. The wear gauge 5, as shown in FIG. 2 (C), is to use against the side surface of the pawl 3.

Reference numerals 6a to 6d denote marks provided in correspondence with the model for displaying the positions of the claw fitting portions 2a. 7a
7d are marks indicating the wear limit position of the tip when the claw 3 is worn to such an extent that it needs to be replaced, and is provided at four positions according to the type of claw (four in this example).
9a to 9d are marks indicating the positions of the tips of new nails in accordance with the model. The position of the tip of the new nail is marked with a letter indicating the model. Also, marks 6a to 6d,
The same alphabets 7a to 7d and 9a to 9d indicate the same model, and are given the same color or pattern.

As described above, the display means (marks) 6a to 6d for displaying the wear limit positions of the tips of the nails whose nails are to be replaced are provided. By simply comparing with the display means, it is possible to know at a glance whether or not the wear has reached the limit position, and the wear inspection becomes easy. In addition, since the display means (marks) 9a to 9d for displaying the tip position of the nail in a new state of the nail are provided, it is possible to know the distance between the tip of the nail and the current position and the ratio to the wear limit position, In comparison with the use period of the excavator, it becomes easier to predict the time for exchanging the claws.

Although one type of abrasion gauge may be used to check the wear of one type of claw, a plurality of display means according to the model are provided as in the present embodiment. By making a single wear gauge compatible with multiple models, manufacturers can manufacture one or a few types of wear gauges, and users can purchase one or a few types of wear gauges. Economics can be achieved because it is sufficient.

The outer shape of the wear gauge 5 is not necessarily
It is not necessary to match the shape of the nail 3, but if the outer shape is matched to the shape of the nail 3, the positioning of the nail 3 and the wear gauge 5 becomes easy.

Further, as in the present embodiment, the claw fitting portion 7 is provided.
By displaying a to 7d, it is possible to know how much remains from the tip of the claw 3 to the claw fitting portion 2a, and if the wear progresses, the wear reaches the claw fitting portion. You can know whether or not.

In the present invention, the display means for displaying the tip of the nail may be formed by a code such as a character or an engraved mark instead of a mark.

[0023]

According to the first aspect of the present invention, the display means for displaying the wear limit position of the tip of the nail is provided on the wear gauge made of a transparent plate. only in wear comparing the display unit can know the glance whether reaches the limit position, it is easy to wear inspection.

According to the second aspect, by displaying the tip position of the new state on the wear gauge, it is possible to know the distance from the current position and the ratio to the wear limit position, and to shorten the period of use of the excavator. In contrast, it is easier to predict the time for replacing the nail.

According to the third aspect of the present invention, one wear gauge corresponds to a plurality of types of wear gauges, so that a manufacturer can manufacture one or a small number of kinds of wear gauges, and a user needs only one kind of wear gauge. Since only a few or a few types of wear gauges need to be purchased, economy is achieved.

According to the fourth aspect, since the outer shape of the wear gauge is adjusted to the shape of the nail, the positioning of the nail and the wear gauge becomes easy.

According to the fifth aspect, the claw fitting portion is displayed on the wear gauge, so that it is possible to know how much remains to the claw fitting portion. It is possible to know whether the wear has reached the part.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a bucket having claws for performing a wear check with a wear gauge according to the present invention.

2 (A) is a side view showing an embodiment of a wear gauge of the present invention, FIG. 2 (B) is a plan view thereof, and FIG. 2 (C) is a side view showing a state where a wear gauge is applied to a claw.

[Explanation of symbols]

1: bucket body, 2: claw adapter, 2a: claw fitting portion,
3: nail, 4: pin, 5: wear gauge, 6a to 6d: mark indicating nail fitting portion, 7a to 7d: mark indicating wear limit, 9a to 9d: mark indicating tip of new nail

Claims (5)

[Claims] An abrasion gauge for a bucket claw for checking the degree of abrasion of the claw against a claw detachably attached to a claw adapter of a bucket, comprising a plate made of a transparent material, and having a predetermined length from an end of the plate. And a display means for displaying a wear limit position of the tip of the claw whose claw is to be replaced at a position of (1). 2. A bucket claw wear gauge according to claim 1, wherein said wear gauge has display means for displaying a tip position of said claw in a new condition of said claw. 3. The bucket claw wear gauge according to claim 1, wherein a plurality of display means according to a model are provided as said display means. 4. A wear gauge for a bucket claw according to claim 1, wherein the outer shape of the wear gauge has a shape of a claw. 5. A bucket claw wear gauge according to any one of claims 1 to 4, wherein said wear gauge is provided with display means for indicating a claw fitting portion for fitting said claw. Claw wear gauge.