JP2001317284A - Device for marking screw blade of excavator or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a device for marking a screw blade of an excavator or the like which is capable of marking an unnecessary part simply and more accurately than usual for maintenance of the screw blade of the excavator or the like. SOLUTION: The opposite side parts of a base are angled and casters movable longitudinally and laterally are provided on the lower portions of the parts, while a magnet for preventing dropping is provided. A movable main shaft is provided together with a support shaft so that a slate pencil for marking or the like can be extended, in a fixed state, from the main body to a marking part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw for an excavator or the like in which a scoring device for cutting an unnecessary portion of the blade during maintenance of the screw blade of an excavator or the like is fixed to a main shaft of the screw blade using a magnet. The present invention relates to a blade scribing device.

[0002]

2. Description of the Related Art During maintenance of a screw blade of an excavator or the like, it is necessary to cut off unnecessary portions of the screw blade reduced by excavation and the like, and attach a blade material of the first dimension by welding or the like. Since the tip of the screw blade of the excavator etc. is less than the original one, if you measure the unnecessary part of the screw blade of the excavator etc. from the outer circumference, the tip part will be cut off more than the original one In addition, even when scribing was discontinuously performed with a ruler or the like from the cylindrical main axis, the perpendicularity was not high, so that accurate scribing could not be performed.

[0003]

(A) Even when measuring unnecessary parts from the outer periphery and scoring the screw blades of an excavator or the like during maintenance of the screw blades of the excavator or the like, the tip part is more sharply cut than the original part. Even if many scribes were cut off and the blade material of the first dimension was welded, the finished outer dimensions differed between the original part and the tip part. (B) Even if unnecessary parts similar to those described above are measured from a cylindrical main axis with a ruler or the like and scored, they are discontinuous and have no verticality, so the line connecting them lacks accuracy, and again the completed outer shape The dimensions were not uniform. The present invention has been made to solve these disadvantages.

[0004]

Means for Solving the Problems Four ball casters (5) are attached to the lower part of both sides of a pedestal (6) having both sides inclined inward so as to hit the cylindrical main shaft (3).
A magnet guide (12) is provided at the center, and a magnet base (7) is put in the magnet guide (12). The magnet base (7) can be contacted when the main body (21) is fixed to the cylindrical main shaft (3), and can be adjusted to a height that does not come into contact when the main body (21) is moved. 15) Butterfly nut (14) and fixed nut (1
3) Attach. Furthermore, a main shaft (10) for height adjustment is provided on the pedestal (6) upward, and a support shaft (11) for fixing a writing brush, which is movable up and down by a height position adjusting tool (8), is provided. Attach a stone brush attachment (9) having a fixing hole (16) such as a stone brush. The present invention is a screw blade scoring device for an excavator or the like having the above-described configuration.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following can be considered as embodiments of the present invention. This will be described with reference to FIGS. 1 and 5. As shown in FIGS. 1 and 5, both ends of the base plate of the pedestal (6) are provided with an appropriate angle so as to fit the cylindrical main shaft (3), and ball casters ( 5) Attach. The angle is preferably such that the ball caster (5) can cope with a plane (4) such as a surface plate. Then, a corresponding hole is made in the central plane portion of the pedestal (6), and a magnet guide (12) is provided so that the magnet base (7) to be inserted therein can slide up and down appropriately. However, the magnet base (7) used here is capable of ON / OFF control of a downward magnetic force by a magnet ON / OFF lever (17). An appropriate hole is formed in the upper surface of the magnet guide (12), and a magnet height adjusting bolt (15), a butterfly nut (14) and a fixing nut (1) are formed therein.
3) Attach and fix the magnet height adjusting bolt (15) to the magnet base (7). Further, a spindle (10) for height adjustment with a scale (19) for measuring the mounting height position is installed, and a spindle for fixing a stone brush which can be moved up and down by a height adjustment tool (8). (11)
Attach. At this time, the tip portion of the support shaft (11) for fixing the writing brush is provided with a fixing hole (16) of a writing brush or the like for fixing a marking chalk or a writing brush (18) at the time of scoring. Is installed. The present invention is configured as described above, and when it is used, a ball caster (5) of a main body (21) is provided on the upper surface of a cylindrical main shaft (3) having a screw blade (1) of an excavator or the like. The magnet base (7) is lowered by loosening the butterfly nut (14) and the fixing nut (13) of the magnet height adjusting bolt (15). Then, since the magnet base (7) comes into contact with the cylindrical main shaft (3), if the magnet ON / OFF lever (17) is turned on as it is, the main body (21) is less likely to fall from the cylindrical main shaft (3). Here, the height position adjusting tool (8) and the writing brush attachment (9) are adjusted, and the chalk or the writing brush (18) attached to the fixing hole (16) of the writing brush or the like is attached to the screw blade (1) of the excavator or the like. Fix to the desired height. Here, while holding the main body (21) with one hand, the butterfly nut (14) is tightened, and when the magnet base (7) is separated from the cylindrical main shaft (3) by about 0.5 mm, the fixing nut (13) is moved to the butterfly nut. After turning until it stops at (14), the butterfly nut (14) is tightened to fix the magnet base (7) to the magnet guide (12). In this state, if scribing is performed along the screw blade (1) of the excavator or the like with a chalk or a stone brush (18), the scoring can be performed with the magnetic base (7) slightly attracted. Also helps. In addition, the ball caster (5) attached to the lower part can move in any direction along the blade. Thus, the present invention can also be applied to scoring on the cylindrical main shaft (3) and on the flat surface (4) such as a surface plate, and the mounting height attached to the height adjusting main shaft (10). The scale (19) for position measurement makes it possible to easily cope with the cylindrical main shaft (3) having different diameters. Although four ball casters (5) are provided in the embodiment, at least three or five or more ball casters (5) can be used, and these ball casters (5) can be used in the same way as a free caster if the direction is determined once. It is thought that the purpose of scoring can be achieved without the magnet base (7) as in the second embodiment, and the pedestal (6)
If the main shaft has a relatively large diameter, it is possible to cope with the problem without providing the angles of both sides.

[0006]

According to the present invention having the above-described structure, it is possible to maintain the screw blades of an excavator or the like at a substantially uniform and substantially vertical position with respect to a cylindrical main shaft portion or a flat surface such as a surface plate during maintenance. In addition, since continuous scoring can be performed, the screw blades are measured from the outside, and the discontinuous measurement is made from the cylindrical main shaft with a ruler, etc. Since the outer diameter of the tip part and the original part do not differ, work accuracy is increased, balanced screw blades are created after maintenance, and the burden on power machinery parts such as excavators It is thought that the emission of harmful substances such as carbon monoxide and nitric oxide can be reduced by reducing the amount of fuel used in the power machine, thereby saving the fuel used for the power machine.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 shows a second embodiment of the present invention.

FIG. 3 is a perspective view of a screw blade of an excavator or the like.

FIG. 4 is a side view of the present invention.

FIG. 5 is a front view of the present invention.

FIG. 6 is a plan view of the present invention.

[Explanation of symbols]

 (1) Screw blades of excavators, etc. (2) Unnecessary parts (3) Cylindrical spindle (4) Surface of platen, etc. (5) Ball caster (6) Pedestal (7) Magnet base (8) Height adjustment Tools (9) Stone brush attachment (10) Height adjusting spindle (11) Stone brush fixing spindle (12) Magnet guide (13) Fixing nut (14) Bow nut (15) Magnet height adjusting bolt (16) Stone brush (17) Magnet ON / OFF lever (18) Choke, stone brush, etc. (19) Scale (20) Handle (21) Main body

Claims (1)

[Claims] A magnet guide is provided at the center of the pedestal so that the magnet can be moved up and down, and fixing means for adjusting the height of the magnet and fixing the magnet is provided in the magnet guide. A plurality of ball casters are provided so as to be in contact with the cylindrical main shaft of a screw blade of an excavator or the like, and to be movable in a state where the pedestal is not in contact with the cylindrical main shaft, and upward from the pedestal or the magnet guide. A spindle for height adjustment is provided, a spindle for fixing a writing brush is provided on the spindle for height adjustment via a height position adjusting tool, and a writing brush is attached to the other end of the spindle for fixing a writing brush via a writing brush attachment. A screw blade scoring device such as an excavator comprising a main body provided and a magnet provided on the magnet guide.