JPH07197446A - Single-shaft reversible agitation blade for soil improvement - Google Patents

Abstract

PURPOSE:To reduce the weight of an excavator and the production cost thereof, by making a drill bit to form a single shaft and rotating agitation blades to different directions from each other. CONSTITUTION:A gear 2 is fixed to a shaft 1 and a pinion 3 and a reaction plate 6 crossing at right angles with the shaft 1 are equipped to the external bearing 5. A reverse blade 8 is attached to the case 7 of the inner gear 4 and further, a forward blade 9 is fixed at the lower end of the shaft 1. The shaft 1 is rotated clockwise and hence, the forward blade 9 is rotated clockwise. Then since the reaction plate 6 is larger than the reverse blade 8, in the plane pressure in the ground, the external bearing 5 almost comes to a halt and hence, the case 7 and the reverse blade 7 rotate counterclockwise by the action of the pinion 3 and the gear 2.

Description

Detailed Description of the Invention

[0001]

[Usage field] Used when performing ground improvement work by excavating and stirring cement milk while injecting cement milk in the civil engineering industry.

[0002]

[Prior art]

1. Construction with rotation in only one direction 2. In order to rotate in the normal and reverse directions, the outer tube and the inner tube are rotated in the forward and reverse directions in the ground drive unit.

[0003]

[Problems to be Solved by the Invention]

 1. Reduction of machine manufacturing cost 2. Reduction of machine weight 3. Shortening construction time 4. Improvement of construction quality

[0004]

[Means for Solving the Problems] In a single-axis drive, the agitating blade in the ground is rotated normally and reversely.

[0005]

[Action]

1. Attach a gear to the shaft in Figure 1. Attach the pinion and reaction plate to the outer bearing shown in Fig. 1. The reaction plate should be mounted vertically. Attach the reverse wing to the case with the internal gear in Fig. 4. 4. Attach a straight wing to the shaft shown in Fig. 5. When the shaft in Fig. 1 is rotated to the right, the right wing rotates to the right and the reaction plate in the ground is larger than the reverse wing, so the outer bearing is in a stopped state and the action of the pinion and gears causes the case and the reverse wing to operate. Rotates left

[0006]

【Example】

1.1 Used for construction with axis 2. It is used for the construction by the multi-axis construction method which doubles as the connecting plate with the shaft where the reaction force plates in Fig. 1 lie side by side.

[0007]

The weight of the machine and the manufacturing cost are greatly reduced,
Efficient work and easy to install on machines that have been used up to now

[Brief description of drawings]

FIG. 1 is an assembled side view of the present invention.

FIG. 2 is a view on arrow A of FIG.

[Explanation of symbols]

 1. Axis 2. Gear 3. Pinion 4. Internal gear 5. Outer bearing 6. Reaction force plate 7. Case 8. Reverse wing 9. Masafusa 10. Injection hole 11. Fitting

Claims (1)

[Claims] 1. A single-axis agitating blade that is used for ground improvement work and rotates in the forward and reverse directions.