JPH0433682Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to a fumarole-type soil improvement work machine, and more specifically to a fumarole-type soil improvement work machine that can maintain and store a beam in a stable posture when not in use.

[Prior Art] A conventionally known fumarole-type soil improvement work machine has a compressor mounted on a frame constituting the work machine, and a beam with a subsoiler function is attached to the cross frame of the frame of this work machine. A chisel with a fumarole function is installed at the lower end of the beam, and compressed air from the compressor is ejected from the fumarole hole of the chisel through an air tank to forcibly supply air into the soil. It was designed to activate the soil's fertility. Additionally, in order to facilitate the cutting of the soil by the beam, a rolling coulter is installed in a vertical plane containing the beam and in front of the beam. An example of this type of working machine is the one shown in Japanese Unexamined Patent Publication No. 16176/1983.

[Problem that the invention attempts to solve]

The above-mentioned fumarole-type soil improvement work machine has a beam attached to the rear end of the upper frame in side view that extends below the grounding point of the gauge wheel, so when the work machine is stored or transported, It is necessary to rotate the beam so that it is positioned above the grounding point. In this case, the beam is held so that the rear end of the fumarole chisel provided at the lower end of the beam does not touch the ground, but simply inserting the holding pin into the holding pin hole of the beam will take a long time. Since the stowed position is unstable and the fumarole chisel cannot resist rotation in the upward direction, there was a risk that the fumarole chisel would inadvertently rise and collide with other structural members, causing destruction. . In addition, stands near the front end of the frame are provided on both sides to allow selection of the ground length at the point of contact, and a gauge wheel or stand is provided near the rear end of the frame to allow for non-slip contact. Although it has become possible to stabilize the posture during work, it is difficult to adjust the ground length because it has to be done at the front and back positions of the frame, so in reality, it is only necessary to make appropriate adjustments. can be,
After all, it is not possible to retract the acting machine in a stable state.

[Means to solve the problem]

The present invention was devised to solve these problems, and it allows the beam with the stand attached to turn freely, and also allows the work machine to be operated using the stand attached to the beam and the gauge wheel while the beam is lifted. To provide a fumarole-type soil improvement work machine that can store a beam in a space below the work machine frame by supporting the frame and take a storage posture without raising the center of gravity excessively. In order to achieve the purpose, the fumarole type soil improvement work machine of the present invention includes a work machine frame on which a compressor is mounted, a pair of left and right gauge wheels provided at the front lower part of the work machine frame, and a work machine frame equipped with a compressor. A beam support arm has one end attached to a cross frame that forms part of the frame, and a plurality of pin holes are bored along the longitudinal direction, and the beam is inserted through a selected one of the pin holes. a beam pivotally attached to a support arm and having a blow chisel at a lower end; and a stand attached to a rear end of the beam closer to the upper end than a pivot point of the beam with respect to the beam support arm; The beam extends downward to position the blow chisel at a predetermined depth in a working state, and in a non-working state, the beam is housed in a space below a working machine frame supported by the gauge wheel and the stand. The beam is characterized in that the beam turns around the landing point.

[Embodiments] Hereinafter, embodiments of this invention will be described with reference to the attached drawings. First, in the figure, reference numeral 10 indicates a tractor that pulls and drives the blower type soil improvement work machine according to this invention, and has a lower link 11 and an upper link 12, and furthermore, a lift arm that applies a lifting force to the lower link 11. 13, it is equipped with a PTO shaft 14. The fumarole-type soil improvement work machine 20 has a work machine frame 21 composed of a member extending in the front-rear direction and a member extending in the width direction, and a mast frame 22 is erected at the front end of the work machine frame 21. A mounting seat 22A for the upper link 12 is provided at the top.
A mounting pin 23 for the lower link 11 is provided protruding from the outside of the front end of the work machine frame 21. In particular, among the constituent members of the work machine frame 21, the horizontal member near the rear end, that is, the cross frame 24, has a square cross-sectional shape, is hollow, and has end plates 24A at the deep end of both ends. have,
It has a connecting space 24B, and the space inside the central part is used as an air tank 24X. A mounting bed 25 is mounted on this cross frame 24.
A compressor 26 is mounted through the input pulley 26A via a propeller shaft 27 connected to the PTO shaft 14 of the tractor 10, and a speed increasing pulley 26C via a belt 26B. be done. This compresssa 2
The air compressed in step 6 is stored in the air tank 24X. The shaft 26X of the input pulley 26A is a bearing 26Y.
It is supported by and extends into the mounting bed 25 to become the second PTO shaft 26Z. In the figure, code 2
8 is a support frame that supports the mast frame 22;
Reference numeral 29 indicates gauge wheels provided on both sides of the front end of the work machine frame 21, and the support arm 29A is slid in the length direction according to the ground height, and the ground length of the arm is adjusted using the pin hole 29B at an arbitrary position. It has become possible to determine the Both ends of the cross frame 24 protrude to both sides of the working machine frame 21, and the diagonal lines of the cross-sectional square are along the vertical and horizontal directions, and subsoiler type beams, which will be described later, are attached to both ends of the cross frame 24. 30 and a rolling coulter 39 are attached. The beam 30 cuts into the soil to form a slit-like fissure, has a cutting edge 31 on the front side, has a compressed air conduit inside, and has its upper end drilled into one end of the beam support arm 32. Girder sear pin hole 33 and pivot pin hole 34
It is installed by selecting and overlapping adjustment holes, which will be described later.Furthermore, a fumarole tank 35 is attached to the upper end to store air for one blowout of air by a fumarole chisel, which will be described later, and an intermittent drive valve mechanism is used. Air can be ejected intermittently and supplied to the fumarole chisel via a conduit. Furthermore, a mounting flange 36 is formed at the free end of the beam support arm 32 in a shape that extends halfway around the outer periphery of the cross frame 24, in other words, in a right triangle shape with both ends protruding. A mounting flange 37 formed symmetrically with this mounting flange 36 is formed at the end of the coulter support arm 38, and both mounting flanges 36 and 37 can be fastened together with bolts and nuts 36A. . At the other end of the coulter support arm 38, an intermediate portion of a crankshaft 39A is supported by a bearing 38A, and a rolling coulter 39 is attached to the lower end of the crankshaft 39A, and this rolling coulter 39 includes a beam 30. Located in a vertical plane. The beam support arm 32 has a shear pin hole 3
3. A holding hole 32A for maintaining the lifted state of the beam 30 is bored in the middle along with a hole for inserting a pin overlapping the pivot pin hole 34, and the beam 30 has a shear pin hole 33, a pivot pin A plurality of adjustment holes 30A are bored along an extension line connecting the holes overlapping with the hole 34. A fumarole chisel 40 having a soil swelling and softening function is attached to the lower end of the beam 30. 42, a cutting surface 43 with a suction angle at its tip, and a chisel tip 45 having a spout 44 bored at the rear of the cutting surface 43. It can be screwed into a female thread provided on the chisel body 42. Further, a stand 50 is bolted to the upper end of the rear edge of the beam 30, in other words, at the edge opposite to the blade edge 31 and at a position closer to the upper end than the pivot point. By using the holding hole 32A, the beam 30 can be positioned on a plane including the grounding point of the gauge wheel 29 when in the retracted position. Further, the load supporting center line of the stand 50 is configured to be located closer to the upper end of the beam than the pivot pin hole 34. This stand 50 is made of a steel plate formed into a triangle, and its upper end is fixed to the beam 30. Then, the beam 3 to the cross frame 24
0 is installed by placing the mounting flange 36 of the beam support arm 32 and the mounting flange 37 of the coulter support arm 38 facing each other across the cross frame 24 and tightening screws between them. We also install. In the retracted position of the beam, remove the sear pin and align the beam 3 with the pivot point (pivot pin hole 34) as the center.
When the holding hole 32A is in a penetrating state by rotating the beam 30, a holding pin is inserted into the holding hole 32A to prevent the beam 30 from rotating in the restoring direction. At this time, the fumarole chisel 40 is away from the ground. And as a work machine, gauge wheel 29
When the stand 50 provided on the beam 30 comes into contact with the ground, a stable posture is maintained, and the beam 30 is in a state where it cannot rotate either upward or downward.

[Effect of the idea]

As explained above, in the fumarole-type soil improvement work machine of the present invention, a plurality of pin holes are bored in the beam along the longitudinal direction, and the beam is pivoted to the beam support arm through a selected pin hole. I'm wearing it.
The beam can pivot around this pivot point and is housed in a space below the work machine frame. In the stored state, the stand and gauge wheel attached to the beam are grounded. Therefore, a beam storage space is secured, and the working machine frame is not lifted up excessively. Therefore,
It is possible to take a stable storage position, and it also eliminates the need to occupy a large amount of space during storage and transportation.

[Brief explanation of drawings]

The attached drawings show an embodiment of this invention, and Fig. 1 is a side view of the fumarole-type soil improvement work machine in its working state;
The figure is a side view of the beam in a lifted state, and FIG. 3 is a plan view of the stand attached to the beam. 10...Tractor, 11...Lower link, 12
... Atsupa link, 13 ... Lift arm, 14
...PTO shaft, 20 ... fumarole type soil improvement work machine,
21...Work machine frame, 22...Mast frame, 23...Mounting pin, 24...Cross frame, 24A...End plate, 24X...Air tank, 2
5... Mounted bed, 26... Compressor, 26
A...Input pulley, 26B...Belt, 26C...
...Amplification pulley, 26X...shaft, 26Y...bearing,
26Z...2nd PTO shaft, 27...Propeller shaft, 2
9... Gauge wheel, 29A... Support arm,
30... Beam, 30A... Adjustment hole, 31... Blade edge, 32... Beam support arm, 33... Sea pin hole, 34... Pivot pin hole, 35... Fumes tank, 36, 37... Installation Flange, 38...Coulter support arm, 40...Full chisel, 41...
Air passage, 42...chisel body, 43...excavation surface, 44...spout port, 45...chisel tip, 5
0...Stand, 51...Grounding part.

Claims (1)

[Scope of utility model registration request] A work machine frame equipped with a compressor,
A pair of left and right gauge wheels provided at the lower front side of the work machine frame, a beam support arm having one end attached to a cross frame forming a part of the work machine frame, and a plurality of pins along the longitudinal direction. a beam having holes drilled therein and pivotally connected to said beam support arm through a selected one of said pin holes and having a blow chisel at its lower end; and a beam pivotally connected to said beam support arm; a stand attached to the rear end of the beam closer to the upper end than the dot; in a working state, the beam extends downward to position the blow chisel at a predetermined depth; in a non-working state, the stand is attached to the rear end of the beam; and a fumarole-type soil improvement work machine, characterized in that the beam turns around the pivot point so as to be stored in a space below the work machine frame supported by the stand.