JPS5910182Y2 - subsoil crusher - Google Patents

Description

[Detailed description of the invention] This invention relates to a subsoil crusher used at golf courses, etc., which crushes the subsoil to improve drainage and aeration, and cuts roots to regenerate the lawn without damaging the lawn. This invention relates to a subsoil shredding machine that can perform the subsoil crushing at the same time without any problems.

As grass does not like moisture, it is necessary to improve drainage especially at golf courses, but conventionally, soil was dug up and drainage pipes such as clay pipes were buried, which damaged the fairways and interfered with play. There was a problem.

Also, the more the roots of the lawn are cut, the better the regeneration effect will be.
Previously, a dedicated work machine (renovator) was used to cut the roots of the lawn while being pulled by a tractor, but since this work machine was a dedicated machine, it was extremely expensive.

In view of these points, the present invention has been developed by making slight improvements to subsoilers and other subsoilers to enable root cutting work in addition to subsoiler crushing. In this subsoil crusher, a machine frame is attached to the rear of the tractor body via a three-point linkage mechanism, and a shank with a chisel at the lower end is installed. A plate coulter and a plurality of disk coulters arranged in parallel at a predetermined interval on both sides of the disk coulter are provided, and an elegant three-point linkage mechanism is provided so that the shank and disk coulter vibrate back and forth. The main feature is that a vibration force extraction device that applies vibration force through the tractor body is provided on the tractor body side.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
In the figure, 1 is a tractor body, which has a hydraulic system 2,
A subsoil crusher 4 is attached to the rear of the tractor body 1 for towing through a three-point linkage mechanism 3, and the subsoil crusher 4 can be raised and lowered by a hydraulic device 2.

As shown in FIG. 2, the subsoil crusher 4 includes a machine frame 5, a knife-shaped shank 7 vertically adjustable and supported by a holding metal fitting 6 at the center of the rear end of the machine frame 5, and the shank 7. A chisel 8 provided at the lower end, a bullet 10 connected to the chisel 8 via a tow rope 9, and a plurality of lateral disks arranged in front of the shank 7 and on both sides thereof. coulter 11
．． 12.

Each disc coulter 11, 12 is rotatably supported on mounting brackets 14 attached at equal intervals to the lower side of the horizontal frame 13, and the horizontal frame 13 is laterally supported on the front part of the machine frame 5. has been done.

The three-point link mechanism 3 includes one top link 15 and a pair of left and right lower links 16, and the top link 1
5 is pivotally attached to the upper end of a T-shaped vibration table 17.

As shown in FIG. 3, the vibration table 17 is removably pivoted to a top link mount 19 of the tractor body 1 via a mounting pin 18.

Reference numeral 20 denotes a vibration force extraction device, which includes a drive shaft 22 that is removably spline-fitted to the PTO shaft 21 of the tractor body 1 as shown in FIG.
A holding case 24 rotatably held via the holding case 24,
The holding case 24 is attached to the tractor body 1 by bolts 25.
It is detachably attached to the.

The drive shaft 22 has an eccentric shaft 26 at the rear end, and the eccentric shaft 26
A bearing ring 28 is fitted through a ball bearing 27 to
This bearing ring 28 is connected to the vibration table 1 via a connecting rod 29.
It is connected to the lower end of 7.

Next, the action will be explained.

During work, the subsoil crusher 4 is towed by the tractor body 1 with the chisel 8 at the lower end of the shank 7 stuck in the soil. The coulter bites into the ground and rolls, cutting the roots of the lawn by cutting grooves 30 in the shape of a sliver as shown in the dashed-dotted line in FIG. The shank 7 passes through, the chisel 8 crushes the subsoil, and the bullet 10 shapes the culvert 31.

During such work, if the PTO shaft 21 is rotated, the drive shaft 22 will rotate together with it, and the connecting rod 29 will crank in the vertical direction via the eccentric shaft 26. 17 repeats reciprocating motion up and down with the mounting pin 18 as a fulcrum, and the top link 15 vibrates in the longitudinal direction.

This vibration is then transmitted to the machine frame 5, and as this machine frame 5 reciprocates using the rear end of the lower link 16 as a fulcrum, the shank 7, chisel 8, and disc coulter 11, 12 move forward while repeating vibrations back and forth. do.

Therefore, the roots of the lawn can be quickly cut by the disc coulter 11, 12, and since the shank 7 moves forward while vibrating along the kerf 30 of the disc coulter 11, even when the lawn is fully rooted, You can move forward without any significant resistance.

In addition, connect a corrugated pipe etc. to the bullet 10, and connect it to the culvert 3.
A drainage pipe may be buried in 1.

In the above embodiment, all the disc coulters 11 and 12 were pivotally connected to the horizontal frame 13 in a straight line, and the horizontal frame 13 was fixed to the machine frame 5, but as shown in FIGS. 4 and 5, It may be set to

That is, in this case, the central disc coulter 11 is disposed at the center of the front end of the machine frame 5, and the left and right disc coulter 12 are removably supported by the horizontal frame 13 located slightly behind it.

The disk coulters 11, 12 are both connected to the stay 32. 33 and vertical axis 34. 35 to form a caster structure, each of which has a longitudinal axis 34 . 35 is a holding cylinder 36. 37 so as to be vertically adjustable.

The holding cylinder 36 is fixed to the center of the front end of the machine frame 5.

The holding cylinder 37 is attached to a sliding fitting 38 that is slidable on the horizontal frame 13, and the horizontal frame 13 has a pair of left and right mounting pieces 39, which can be attached to and detached from the machine frame 5 using bolts 40. .

Therefore, in this case, if the horizontal frame 13 is removed, the disc coulter 11 and the shank 7 will remain in the front and rear positions of the machine frame 5 for normal subsoil crushing, and if the horizontal frame 13 is attached, both the left and right sides A disc coulter 12 is added to the coulter, making it possible to perform subsoil crushing and root cutting at the same time.

As described in detail in the embodiments above, in the present invention, a disk coulter is provided in front of the shank, and disk coulters are provided on both left and right sides, so that each disk coulter is simultaneously crushed by the shank and chisel. This makes it possible to cut the roots of the lawn, thereby improving drainage and ventilation, and since the roots are cut, the effect of regenerating the lawn is extremely large.

Also, since it can be used for both drainage and root cutting, it is more economical than conventional dedicated machines.

What's more, the work is done at the same time, leaving only thin kerfs and shank marks, so there is no damage to the grass like in the past, and you can play without any problems.

Since there are multiple disc coulters, the individual disc coulters can check each other to prevent meandering, etc.
Improves straight running performance.

Moreover, the vibration force is cleverly applied from the vibration force extraction device via a three-point linkage mechanism so that the shank and each disk coulter vibrate back and forth, so even if the grass has sufficient roots. However, the traction resistance is low and work can be done efficiently.

In addition, the vibration force extraction device is installed on the tractor body side, and the machine frame is vibrated via a three-point link mechanism.
Compared to the case where the vibration force extraction device is installed on the machine frame side away from the tractor body, the subsoil crusher side does not become larger, the weight balance during lifting is good, and all of the shank and disc coulter are removed. It can be easily vibrated with a simple mechanism.

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is an enlarged sectional view of the same main part, and Fig. 4 is a partially cutaway side view showing another embodiment of the invention. FIG. 5 is a partially cutaway front view of the same part. 1... Tractor body, 3... Three-point link mechanism, 4... Center crusher, 5... Machine frame, 7...・Shank, 8...Chisel,
11.12...Disc coulter, 13...
・Horizontal frame, 20... Vibration force extraction device.

Claims (1)

[Scope of utility model registration request] In a subsoil crushing machine, a machine frame 5 is attached to the rear of the tractor body 1 via a three-point linkage mechanism 3, and a shank 7 having a chisel 8 at the lower end is provided on the machine frame 5. A disc coulter 11 located in front of the shank 7 and a plurality of disc coulter 12 arranged in parallel at a predetermined interval on both left and right sides of the disc coulter 11 are provided. A subsoil crusher characterized in that a vibration force extraction device 20 is provided on the tractor body 1 side for applying vibration force to the machine frame 5 via a three-point linkage mechanism 3 so as to vibrate back and forth.