JPH061623Y2 - Soft ground processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field to which the Invention belongs) The present invention relates to a processor for performing agitation and mixing processing on a relatively surface layer of soft ground.

(Problems of the device and its characteristic points) A simple type soft ground processing machine, in which a stirring mixer is attached to the tip of the arm of the excavator in place of the excavator and the comparative surface layer of the soft ground is stirred and mixed, Although known (see Japanese Utility Model Publication No. 56-15245 and Japanese Utility Model Publication No. 60-178043), the conventional soft ground processing machine of this kind is not provided with means for detecting the agitation depth, so that It was a problem in quality control.

The present invention is intended to solve the above-mentioned problems, and the structural features thereof are as described in the scope of claims for utility model registration.

That is, the present invention is to attach a depth meter to a stirring mixer of a simple type soft ground processor through a gantry, and detect the depth of penetration of the rotary shaft of the stirring mixer into the ground by the depth meter to determine the stirring depth. The confirmation is made.

(Specific Description of the Invention by Drawings) In FIG. 1, which is an overall view of one embodiment of the present invention, 1 is a crawler type traveling vehicle, 2 is a boom, 3 is an arm,
These are the same as the excavator.

The stirring mixer 4 attached to the tip of the arm 3 includes a drive unit 5, a rotating shaft 6, a stirring blade 7, and a ground improvement material supply path (not shown). The rotating shaft 6 rotates the boom 2 and the arm 3. By operation, it penetrates into the ground at a desired point, and the stirring blade 7 at the tip portion stirs and mixes the ground improvement material.

8 is a cylinder for keeping the posture of the rotary shaft 6 always vertical,
9 is a verticality meter.

In the embodiment shown in FIG. 1, a pedestal attached to the stirring mixer 4
A depth gauge 11 is installed at 10 for detecting the underground penetration length of the rotary shaft 6 from the moving length of an endless wire that moves corresponding to the underground penetration of the rotary shaft 6.

As shown in the enlarged view of FIG. 2, the depth gauge 11 is placed on a pedestal 13 projecting from the lower end of the frame portion 12 of the pedestal 10,
A detection bar 14 which is an accessory of the depth gauge 11 passes through a hole formed in the hole 13.

The detection bar 14 is suspended by the guide 15 provided at the upper end of the frame portion 12 as shown in the figure, and is suspended as shown in the figure.In this state, the lower surface of the float 16 attached to the lower end of the detection bar 14 and the rotating shaft The lower end of 6 is located at approximately the same level.

The endless wire 19 stretched between the pulleys 17 and 18 provided at the upper and lower ends of the detection bar 14 is wound around the pulley 20 of the depth gauge 11 and fixed at a proper position on the pedestal 13, When the pedestal 13 moves along the detection bar 14, the endless wire 19 moves and the pulley 20 rotates.

When the rotary shaft 6 penetrates into the ground, the detection bar 14 floats.
Since 16 does not sink, it remains on the ground, and the pedestal 13 moves along the detection bar 14, but the moving length is equal to the penetration length of the rotating shaft 6.

Therefore, the amount of rotation of the pulley 20 can be detected by a detector such as a potentiometer built in the depth gauge 11 to know the underground penetration length of the rotating shaft 6.

Next, another embodiment of the present invention shown in FIG. 3 will be described. In this embodiment, the pedestal of the drive unit 5 of the stirring mixer 4 is installed.
21 is attached and a depth gauge 22 by a torque motor is placed on it.

A float 26 is attached to the tip of the wire 25 wound around the pulley 24 of the torque motor 23, and the torque transmitted from the torque motor 23 to the pulley 24 is large enough to rapidly wind up the float 26 and the wire 25 The float 26 can be wound up and switched to a small case where the float 26 is not wound up.

When the rotary shaft 6 penetrates into the ground, the lower end of the rotary shaft 6 is brought into contact with the ground surface as shown in the drawing, the float 26 is lowered to the ground, and a small torque is applied to the pulley 24.

When the rotary shaft 6 penetrates into the ground in this state, the pulley 24 successively winds the wire 25, and the winding length is equal to the length of the rotary shaft 6 penetrating into the ground.

Therefore, the underground penetration length of the rotary shaft 6 can be detected from the rotation amount of the pulley 24.

In addition, when changing the penetration point of the rotary shaft 6, the pulley 24
The torque of 1 is increased, the float 26 is wound up, and then the stirring mixer 4 is moved.

(Effect of the device) Since the device of the present invention is equipped with a pedestal and a depth meter attached to the agitating mixer as described above, the agitation depth can be managed reliably even with a simple type soft ground processing machine to ensure quality. The treated ground can be provided.

[Brief description of drawings]

FIG. 1 is an overall side view of an embodiment of the present invention, FIG. 2 is an enlarged side view of an essential part of the same, and FIG. 3 is an explanatory view of another embodiment of the present invention. 3 ... Arm, 4 ... Stirring mixer, 10 ... Stand, 11 ... Depth gauge,
…….

Claims (1)

[Scope of utility model registration request] 1. A depth meter for detecting the depth of penetration into the ground of a rotating shaft of the agitation mixer is attached to the agitation mixer attached to the tip of the arm of the excavator in exchange for the excavator. A soft ground treatment machine characterized by being installed.