JP2001049684A - Method and board used for grading and excavation in common - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a board used for grading and excavation in common which is used for a bucket in an earth-moving machine such as a power shovel, a shovel loader, etc., capable of carrying out excavation and grading without attaching/detaching the bucket every time after it has been attached to the tooth of the bucket once. SOLUTION: Tooth bodies 2 having sockets 3 for attaching teeth are arranged at one side face of grading pieces 11-1n didided into a plurality of sections to form a grading board 1 and connected to make the grading pieces vertically movable against the tooth body 2. The grading board 1 advances against the tooth body 2 and the lower end 81 is arranged at the same position with the front end of the tooth body 2. A guide 4 is provided to keep a state that the grading board 1 is retracted from the tooth body 2 and the front end of the tooth body 2 is projected forwarder than the lower end of the grading board 1. A connection shaft 6 is inserted in shaft holes 5 of the guide 4 and the socket 3 and fixed thereto so as not to move the grading board 1 after it has bean retracted or advanced from the tooth body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground excavator for a bucket for use in an earth-moving machine such as a power shovel or a shovel loader.

[0002]

2. Description of the Related Art The inventor of the present application has proposed a utility model registration number 200.
No. 6785 (Japanese Utility Model Publication No. 5-12366),
“The ground level plate 8 for mounting on the hoe claw mounting portion of the scooping member in the bucket body 5 is divided into a plurality, and a joint 10 is provided on one side of each of the divided pieces 8 ₁ to 8 _n of the ground level plate. On each of the divided pieces, a ground level plate attachment 9 using a hoe nail of a scooping member in the bucket body 5 is fixed, and the attachment tool is detachably attached to a hoe nail attachment portion via a lock pin 11. and respective segments 8 ₁ to 8 _n are is provided the bucket "in the civil engineering for excavators machines, characterized in that it is connected by a catch 10. As a result, the ground leveling work after excavation can be performed manually and easily with high accuracy by a shovel machine, and its effectiveness has been established by large and small companies in the industry.

[0003]

However, in the above-mentioned registered utility model of the present applicant, in the case of shifting from excavation to leveling work and in the case of shifting from leveling work to excavation work, each of the constituents of the leveling plate is required. it is necessary to remove the divided land Hitoshihen 8 ₁ ~8 _n from the bucket of the tooth (drilling nails). However, because the ground level is made of thick cast steel to withstand high loads and is heavy because it is heavy,
Even the split pieces require considerable power to be carried by the workers. Also, the work of attaching and detaching the divided pieces to and from the teeth of the bucket requires considerable effort and involves a danger.

[0004]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method in which once mounted on the tooth of a bucket, excavation and leveling can be performed alternately without having to detach and attach the rest once.

[Means for Solving the Problems]

In order to achieve the above object, a first object of the present invention is to provide a bucket of a shovel machine for forming a ground level with a plurality of ground leveling pieces, and having a tooth mounting socket along one surface of the leveling piece. Along with placing the tooth body,
Attach the terrain piece to the tooth body so that it can be moved up and down, perform the terrain in a state where the lower edge of the terrain body is at the same position as the tip of the tooth body or in a state where it is advanced from the tip of the tooth body, and An excavation and leveling method characterized in that the excavation is performed in a state in which the extremity of the tooth is protruded from a lower end side of the leveling ground body by being retracted from the tooth body.

In a second aspect of the present invention, in a ground for both excavation and use, a tooth body having a tooth mounting socket is arranged along one surface of a plurality of divided ground preparation pieces forming a ground preparation body. Combine so that it can move up and down with respect to the tooth body, advance the ground preparation body with respect to the tooth body, and position the lower edge thereof at the same position as the tip of the tooth body or below the tip of the tooth body, or in the tooth body On the other hand, a guide was provided to retreat the ground body so that the tip portion of the tooth body protruded from the lower end side of the ground body, and the ground body was retracted or advanced with respect to the tooth body. The coupling shaft is inserted into a shaft hole formed in the guide and the socket so as not to move later, and is stopped.

[0007]

EXAMPLES In FIG, 1 is a leveling board of Horizontal, and is formed by combining the leveling piece 1 ₁ to 1 _n obtained by dividing the longitudinal multiple. Numeral 2 denotes a tooth body arranged along one surface of the front surface or the back surface of the divided leveling piece, and a socket 3 for mounting the tooth of the bucket is formed on the tooth body. The stopper portion 2 ₁ for regulating the amount of movement of the guide body for bracing of the latch also serves substantially tooth body below the intermediate portion of the length of the tooth body is molded. 4 is a guide provided along the lateral sides of the tooth body 2, it is integrally formed on one side of the divided terrain pieces 1 ₁ to 1 _n. As a result, the ground body 1 can move in the vertical direction with respect to the tooth body 2, and as a result, the front end portion of the tooth body 2 projects at the same position as the lower edge 1 ′ of the soil substrate 1 or slightly beyond the lower edge. To a position where it is advanced to the position where it is set, or projects downward from the lower end side 1 ′ of the ground preparation body 1. 2 and 3 and FIG.
In FIG. 7, reference symbol g denotes a cutout recess extending from the upper end side of the divided leveling piece to the vicinity of the lower end of the guide 4. In particular, the width of the intermittent recess from the upper end side of the leveling piece to the depth of the upper end of the guide 4 is shown. It is formed wide so that it does not hit the welding portions w (the back side in the figure) on both left and right sides of the tooth adapter 9 of the bucket 8 when the leveling side is retracted (pushed up). Reference numerals 5 and 5 'denote shaft holes for connection formed in the guide 4 and the socket 3 for mounting the tooth, and two shaft holes are provided at a distance L corresponding to the amount of vertical movement of the leveling piece with respect to the tooth body 2. Reference numeral 6 denotes a coupling shaft which is inserted through the shaft holes 5 and 5 'to position and fix the ground preparation body 1 with respect to the tooth body 2. 9 and 10 show the connection shaft 6 described above.
Shows a known example of using a thin diameter part ₆₁ is formed in the central portion of the steel shaft body, the outer diameter of expandable and contractible a cylindrical body to form the intermediate region 70 in a part of the circumference to the narrow diameter portion 60 is shown. Reference numeral 7 denotes a guide body for preventing the tooth body 2 from coming off provided between the guide 4 and the lower end side 1 'of the divided grounding piece. It plays a role in preventing rattling and separation. 8 is a bucket, 9 is an opening edge 8 of the bucket
_The tooth adapter 10 fixed to ₁ is a tooth for excavation attached to the tooth adapter. 11 in the figure
Excavator machine, 12 is driver's seat, 13 is swiveling boom, 1
Reference numeral 4 denotes an arm.
It is connected so that it can rotate. 16 with attaching the tooth 10 in the tooth adapter 9, the lock pin for fixing the socket 3 of the tooth body, 17 the division of one adjacent to seal the joint gap of the divided terrain pieces 1 ₁ to 1 _n A joint portion is shown on each piece, and a step corresponding to the thickness t of the divided leveling piece is formed.

[0008]

"Attaching the leveling board body with respect to the bucket" [Specific Example] in advance, the tooth body 2 from the direction of the upper end side of the ground leveling piece 1 ₁ to 1 _n which are divided and inserted into the guide 4 and bracing the guide 7 deep. Then, one of the above-mentioned leveling pieces is held, and the tooth body 2 is mounted on the tooth 10 of the bucket 8 and the lock pin 16 is inserted into the socket 3 and the tooth attachment 9 and fixed. Similarly, other grading pieces are sequentially mounted on the teeth 10 of the bucket 8 to form the grading ground body 1.
Then, the ground shaping body 1 is advanced (pulled down) or retreated (pushed up) with respect to the tooth body 2 in accordance with the purpose of ground shaping or excavation, and the coupling shaft 6 is inserted into the shaft hole 5 or 5 ′. Position and fix. In this case, when the shaft shown in FIGS. 9 and 10 is used as the coupling shaft 6, one end of the shaft is inserted from one side of the socket and driven in with a hammer. 5 (or 5 ')
And the socket 3 are connected. Conversely, when removing the shaft body, if the shaft body is hit with a hammer from one end, the intermittent cylindrical body 60 comes off while resisting the expanding action, and after the shaft body comes off from the shaft hole 5 (or 5 '). The diameter of the intermittent cylinder increases. The coupling shaft 6 may be a method in which a normal headed shaft body is inserted, and a retaining pin is inserted into a small hole formed in a tip portion protruding outside.

"Formation of a ground preparation body for ground preparation work" (FIG. 2)
FIG. 5) The divided ground pieces 1 ₁ to 1 _{n in} which the tooth body 2 is mounted on the tooth 10 of the bucket 8 are advanced (pulled down) with respect to the tooth body 2, and the lower end side 1 ′ of the tooth body 2 is The connecting shaft 6 is inserted into the guide 4 and the hole 5 of the socket 3 at that position, and is fixed at the same height as that of the tip or slightly lower than the tip of the tooth body. Then, by the shovel machine 11 to which the ground preparation body 1 is mounted, the depression A 'excavated from the flat land A is leveled to leveling A ".

"Formation of ground preparation body for excavation work" (FIG. 6 to FIG. 6)
Figure 8) the leveled strip 1 ₁ to 1 _n obtained by dividing wearing the tooth body 2 teeth 10 of bucket 8 is retracted until the stopper portion 2 ₁ of the tooth body with respect to the tooth body 2 (Gaité pushed), the The distal end portion of the tooth body 2 is made to protrude from the lower end side, and the coupling shaft 6 is inserted into the guide 4 and the shaft hole 5 ′ of the socket 3 and fixed at that position. As a result, the tip end portion of the tooth body 2 projects downward from the lower edge 1 ′ of the ground preparation body 1 by a length corresponding to the distance L between the shaft holes 5 ′.
Then, the flat ground A is excavated by the shovel machine 11 equipped with the ground preparation body 1 to form the concave land A '.

[0011]

According to the present invention having the above-described structure, once the ground is fixed to the tooth of the bucket, excavation and leveling can be performed without detaching the ground once.
Also, a plurality of divided grading pieces constituting the grading ground, the grading pieces attached to the tooth of the bucket, the divided terrain forming the terrain body only by pulling out the lock pin attached to the tooth. Not only the left and right end positions but also the leveling pieces at the intermediate position can be individually extracted (so-called middle extraction). Also, without removing the lock pin,
By removing the connecting shaft of the guide, it is also possible to remove the leveling piece from the tooth body. And it can attach to a tooth body again and form a leveling piece by pin connection. Therefore, it is possible to replace the ground preparation body or a part of the divided ground preparation pieces very easily in order to break or repair the ground preparation body or the tooth body.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a shovel machine in which a ground for excavation and use according to the present invention is mounted on a bucket.

FIG. 2 is a perspective view for leveling with a leveling ground mounted on a bucket.

FIG. 3 is a front view of a divided leveling piece.

FIG. 4 is a bottom view of FIG. 3;

FIG. 5 is a sectional view taken along line 5-5 in FIG. 3;

FIG. 6 is a perspective view of the ground preparation body of FIG. 1 for excavation.

FIG. 7 is a front view of a divided leveling piece in FIG. 6;

FIG. 8 is a sectional view taken along line 8-8 in FIG. 7;

FIG. 9 is a perspective view of a coupling shaft that couples the guide of the leveling piece and the socket of the tooth body.

FIG. 10 is an enlarged vertical sectional view at the center of FIG. 9;

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS ₁ Ground preparation body 1 ₁ to 1 _n Ground preparation pieces divided into a plurality 2 Tooth bodies 3 Tooth mounting sockets 4 Tooth guides 5 Shaft holes 6 Coupling shafts 7 Anti-slipping guide bodies that also serve to prevent the tooth body from coming off 8 Bucket 9 DESCRIPTION OF SYMBOLS 10 Tooth 11 Excavator machine 12 Operator's cab 13 Revolving poom 14 Arm 15 Coupling shaft 16 Lock pin 17 Joint part

Claims (2)

[Claims] 1. A shovel machine bucket for forming a terrain body with a plurality of divided terrain pieces, arranging a tooth body having a tooth mounting socket along one surface of the terrain piece, and attaching the terrain piece to the tooth body. To be able to move up and down with respect to the ground, perform the leveling with the lower edge of the grounding body at the same position as the tip of the tooth body or in a state where it is advanced from the tip of the tooth body, and retreat the grounding body with respect to the tooth body The excavation is performed in a state where the excavation is performed with the tip portion of the tooth body protruding from the lower end side of the ground preparation body. 2. A tooth body (2) having a tooth mounting socket (3) is arranged along one surface of a plurality of divided ground pieces (1 ₁ ) to (1 _n ) which form a ground body (1). At the same time, the terrain piece is connected to the tooth body (2) so as to be able to move up and down, and the terrain body (1) is advanced with respect to the tooth body (2), and the lower edge thereof is moved to the tooth body (2). At the same position as the tip of the or below the tip of the tooth body,
Alternatively, a guide (4) for retracting the ground body (1) with respect to the tooth body (2) so as to maintain a state in which a tip portion of the tooth body (2) protrudes from a lower end side of the ground body (1). And the ground body (1) for the tooth body (2)
Guide (4) so that it does not move after moving backward or forward
Characterized in that the connecting shaft (6) is inserted into the shaft hole (5) drilled in the socket (3) and stopped.