JPS5928706B2 - Feeding device for permeable material in trench excavators, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for feeding out permeable material in a trench excavator or the like.

For example, a trench excavator excavates nine trenches using the excavation section, and then sequentially feeds and lays drainage pipes into the excavated trenches, and fills the trenches with permeable material such as rice husks from a tank. This configuration is well known.

By the way, in the past, water-permeable material was filled in the trench regardless of the drainage pipe being fed out, so when the trench excavator stopped running during trench digging, the shutter of the tank discharge part was closed. Before closing, the groove below the outlet is filled with a larger amount of permeable material than necessary, which wastes the permeable material and creates an undesirable bulge of permeable material below the outlet. was occurring.

An object of the present invention is to solve the above-mentioned problems, and in order to achieve this object, a drain pipe fed out from a rotatable drain pipe holder is guided by a guide body in the groove bottom area so that the drain pipe is sequentially placed in the groove. At the same time as laying the water, in a trench excavator, etc. that feeds the permeable material in the water permeable material tank into the trench using the water permeable material feeder, power is used to feed out the drain pipe during the route from the drain pipe holder to the guide body. The invention is characterized in that it includes a drive mechanism that drives the feeding body as a source.

Hereinafter, one embodiment of the present invention will be described based on the drawings of FIGS. 1 to 4. Reference numeral 1 denotes a tractor body, and a screw auger type is illustrated at the rear of the vehicle body 1 via a three-point link 2. A trench excavator 3 is attached so that it can be raised and lowered freely.

The trench excavator 3 has a gear case 4f in the center of its front part to which power is transmitted from the tractor! :: From the same case 4, an excavation part 5 illustrated by a screw auger and a semi-cylindrical casing 6 surrounding the back surface of the excavation part 5 are subordinated, and the excavation part 5 and the casing 6 are connected to each other. The cooperative action of these enables excavation of trenches.

Further, support arms 7 are protruded from the gear case 4 to the left and right, and a lower link mounting bracket 8 is fixed to the outer end of each arm 7, and a support 9 is erected from one of the brackets 8. A drain pipe drum 10, which is shown as a drain pipe holder, is rotatably supported on the upper end of the drain pipe holder 9 about a horizontal axis, and the drum 10 is provided with a drain pipe 11 such as a corrugated pipe, which is vertically disposed behind the casing 6.

12 is a mounting frame, the front end of each side of which is fixed to each lower link mounting bracket 8 and extended rearward;
A pair of front and rear support plates 13 are provided between both sides of the front part, and a pair of rotary bodies, exemplified by flanged rollers located in the middle of the feeding path of the drain pipe 11 and facing left and right, are installed between the two support plates 13. 1
4 is rotatably supported on a horizontal axis in the front-rear direction, and the drain pipe 11 is guided to pass between the two rotary bodies 14, so that the rotary body 14 is rotationally driven as the drain pipe 11 is fed out. I try to do that.

Reference numeral 15 denotes a tank for storing water-permeable material such as rice husks, and a rectangular cylindrical discharge part 16 at the bottom thereof is fixed to the rear inside of the mounting frame 12, and a shutter 17 is provided at the upper part of the discharge part 16 to close the passage inside the discharge part. A water-permeable material dispensing body 18, which similarly closes the passage within the discharging section, is rotatably supported in the lower part of the discharging section 16 about a transverse axis in the front-rear direction.

A winding member such as a chino or a belt is provided on the front side of the discharging section 16 between a transmission wheel 19 operatively connected to the feeding body 18 and a transmission wheel 20 operatively connected to one of the rotary bodies 14. 21 is unwound, and the rotating body 14 and the feeding body 18 are interlocked and connected.

As shown in FIG. 3, the feeding body 18 is made by recessing portions of the outer circumferential portion of a cylindrical member 22 at equal intervals in the circumferential direction to form water-permeable material storage portions 23 along the circumferential direction. Alternatively, as shown in FIG. 4, a plurality of feeding blades 25 are fixed to the shaft body 24 at equal intervals in the circumferential direction,
This allows the required amount of permeable material to be delivered.

Additionally, reference numeral 26 denotes a pair of left and right side plates, which are fixed to the rear surface of the casing 6 so as to extend rearward.

Reference numeral 27 denotes a guide body consisting of a roller or the like, which guides the drain pipe 11 in the groove bottom area, and is provided at the rear of the casing 6 via a bracket 28 so as to be rotatable around the horizontal axis. The drain pipe 11 that has been drawn out downward is guided so that it is laid at the bottom of the trench.

According to the embodiment configured as described above, the shutter 17 of the discharge section 16 is pulled out rearward as shown by the imaginary line in FIG. When the drain pipe 11 is laid in the groove while
and by driving this rotating body 14, a transmission wheel 19,
The feeding body 18 is driven via the 20° winding member 21 and the like, whereby the required amount of water-permeable material is fed out by the feeding body 18 and filled into the groove below the discharge portion 16.

When the work is stopped and the feeding of the drain pipe 11 is stopped, the feeding of the water permeable material Q is stopped and the feeding body 18 is stopped.
As a result, the passage within the discharge section is closed.

Therefore, the water-permeable material is not used in vain, and the water-permeable material does not build up under the discharge portion 16 when the device is stopped.

Note that the feeding body 18 is driven at a rotational speed proportional to the feeding speed of the drain pipe 11, and the amount of permeable material fed out for a predetermined feeding amount of the drain pipe 11 is always constant, so it can be adjusted depending on the working conditions such as hardness and softness of the soil. Even if the working speed of the trench excavator 3, that is, the feeding speed of the drain pipe 11, changes midway through, the permeable material will be uniformly filled into the trench, and there will be no waste at all, and a desirable filling state will be maintained. Obtainable.

In addition, although the present invention is applied to a screw auger type trench excavator in the embodiment, the present invention is applicable to a chain packet type trench excavator, etc., or only performs both drain pipe laying and permeable material filling work. It is also applicable to dedicated machines.

The present invention is directed to the above-described system, in which the drain pipe fed out from the rotatable drain pipe holder is guided by the guide body in the groove bottom area and sequentially laid in the groove, and the water permeable inside the water permeable material tank is installed. The material is fed into the trench by a permeable material feeding body (in trench excavators, etc., a drive mechanism is installed on the path from the drain pipe holder to the guide body to drive the feeding body using the drain pipe feeding as a power source). This allows the permeable material to be fed into the groove by letting out the drainage pipe while the machine is running during work.
In addition, when the running is stopped during work, even if the holder rotates due to inertia, the drain pipe only slackens between the holder and the drive mechanism and does not drive the drive mechanism, so there is no waste of water-permeable material. There is no need to feed out the water-permeable material, there is no build-up of the water-permeable material, and there is no need to take the trouble to open and close the discharge section with a shutter or the like when work is interrupted, making the work easier.

In addition, since the water-permeable material dispensing body is driven by the dispensing of the drain pipe as a power source, there is no need for an electric motor or the like as a power source (its structure is simple and low cost). It also has advantages such as being easily manufacturable.

FIG. 5 shows the permeable material filling device, which is attached to the rear of the tractor via a three-point link and attached to the machine frame 32.
is equipped with a water-permeable material storage tank 33 having an inverted triangular shape when viewed from the rear,
The lower part of the tank 33 is equipped with a shutter 34 that can be freely taken out and taken out, and a discharge tube 35 is fixed, and the discharge tube 35 is slightly sloped downward and protrudes outward from the tractor. is pointing downward.

The middle part of the ejection tube 35 is made into a bellows 36 which is expandable and retractable in the longitudinal direction of the tube, and the bellows 36 of the ejection tube 35
The lower end of the first link 37 is pivotally supported on the inner end side, and the second link 38'f is on the outer end side of the bellows 36 of the discharge cylinder 35! : It is fixed upright, and each end of a connecting link 39 is pivotally connected to both links 37 and 38 to connect both links 37 and 38.

Further, an operating lever 40 is extended from the connecting link 39 toward the seat side, and by operating the lever 40, the links 37, 38, 39
The ejection cylinder 35 can be expanded and contracted via the .

In addition, a disc spring or the like is used for the pivot portion or joint of each link 37, 38, 39, so that the link 37, 38, 39 is fixed at an arbitrary operation position, and the ejection tube 35 can be expanded or contracted as desired. It can be fixed in the adjusted state.

When filling a groove with permeable material using the above-mentioned water permeable material filling device, bring the outer opening of the discharge cylinder 35 above the groove, pull out the shutter 34 of the tank 33 rearward, and then attach the tank 33 to the tractor. It will be towed.

At this time, even if the groove is not straight (or meandering from side to side), the outer opening of the ejection tube 35 can be opened by adjusting the expansion and contraction of the ejection tube 35 using the operating lever 40, without driving the tractor along the meandering groove. It can be easily kept positioned above the groove, and filling the groove with water-permeable material can be performed more easily than before.

FIG. 6 shows a discharge tube 35 of a water-permeable material filling device different from the above.The discharge tube 35 has a nested structure and is composed of an outer tube 41 and an inner tube 42, is expandable and retractable, and is arranged on the outside. The outer opening of the outer cylinder 4 faces downward, and a pair of sled plate-shaped guide members 43 that slide against the groove side walls are removably attached to both sides of the outer periphery of the opening.

When working with the above device, even if the groove is meandering, the ejection cylinder 35 automatically expands and contracts by sliding against the groove side wall by the guide member 43, and the outer opening of the ejection cylinder 35 is always positioned above the groove. position, and can sufficiently follow even small meandering grooves.

[Brief explanation of drawings]

FIG. 1 is a side view showing a first embodiment of the present invention, FIG. 2 is a partially omitted plan view of FIG. 1, FIGS. 3 and 4 are perspective views showing a water-permeable material feeding body, and FIG. 6 is a rear view of the water-permeable material filling device, and FIG. 6 is a rear view of a discharge tube in a water-permeable material filling device different from that shown in FIG. Total...Ditching machine, 11...Drain pipe, 14.
... Rotating body, 15 ... Tank, 16 ...
...Discharging part, 18... Water-permeable material feeding body.

Claims (1)

[Claims] 1. The drain pipes fed out from the rotatable drain pipe holder are guided by guide bodies in the groove bottom region and laid one by one in the groove, and the water permeable material in the water permeable material tank is fed out into the groove by the water permeable material feeding body ( A trench excavator, etc., characterized in that it is equipped with a drive mechanism that drives the dispensing body using the dispensing of the drain pipe as a power source, in the middle of the path from the drain pipe holder to the guide body. Feeding device for water-permeable material.