JP2002305908A - Gravel removing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gravel removing machine capable of drilling soil to a target prescribed suitable depth and removing the gravels. SOLUTION: This gravel removing machine is equipped with a gravel removing device 5 having a drilling part 5a at the tip in front of a self-propelled type vehicle. The gravel removing device 5 is capable of regulating the depth of the drilling part 5a at the tip thereof. A depth measuring instrument 76 for measuring the depth of the drilling part 5a is arranged. The depth measuring instrument 76 is equipped with a depth display device 82 displaying the measured depth in a position visible by an operator in a driver's room installed on the vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gravel removing machine for removing gravel mixed in soil such as agricultural land.

[0002]

2. Description of the Related Art In farmland that contains gravel in the ground and that freezes in winter or that has a severe outflow of earth and sand, it is necessary to remove surface gravel every few years. Various devices for removing such gravel have been proposed. For example, 61-6
In Japanese Patent No. 2966, a debris transfer device that is narrower than the vehicle width is attached to the front of a self-propelled vehicle, and a gravel sorting device that is made of a rotating wire mesh is attached to the vehicle body. There has been proposed a configuration in which drop and gravel are transported by a conveyor protruding to the side of the vehicle body.

[0003]

In the above-mentioned conventional excavator, when excavating, the excavation is performed while the excavation part is lowered, and the excavation depth is set according to the operator's intuition. Therefore, it is practically unknown whether or not the excavation has been performed to the target depth, and there is a problem that it is difficult to proceed with the debris work at a suitable constant depth.

[0004] In view of the above problems, an object of the present invention is to provide a debris excavator that can excavate and excavate to a desired predetermined predetermined depth.

[0005]

According to a first aspect of the present invention, there is provided a debris excavator having a debris transfer device having an excavation portion at a front end of a self-propelled vehicle. In a debris machine that can adjust the depth of penetration of the excavated part from the ground,
A depth measuring device for measuring the depth of the excavation portion, wherein the measuring device displays the measured depth at a position visible by an operator in a cab installed on the vehicle. A display device is provided.

As described above, by providing the depth measuring device having the depth indicator so that the operator can recognize the digging depth, the operator can know the digging depth while visually checking the depth indicator, and can know the digging depth. By running the debris machine while adjusting the depth of the debris transport device so that the depth becomes the target depth, it becomes possible to always excavate and debris at a suitable depth.

[0007] In the first aspect of the present invention,
It is characterized in that it comprises a travel distance measuring means of the gravel excavator, and a printer for displaying a depth detected by the depth measuring device in relation to a travel distance measured by the measuring means.

As described above, by causing the printer to output the excavation depth in relation to the traveling distance, it is possible to keep a record of the depth at which the debris was removed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view showing an embodiment of a degraving machine according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a front view showing a main body. 1 is a crawler type traveling body,
The traveling body 1 has a crawler 1b attached to the left and right sides of a track frame 1a. In some cases, a wheeled traveling body is used as the traveling body 1.

As shown in FIG. 3, a main body frame 4 is mounted on the track frame 1a so as to be swingable right and left by two rolling hydraulic cylinders 3 on the right and left around the front and rear pins 2 respectively. The body frame 4
In front of the gravels, a debris transfer device 5 is mounted
Is mounted so as to be able to swing up and down by a hydraulic cylinder 7 around the center.

As described above, the main frame 4 is made swingable right and left because the crawler 1b is always kept horizontal even when one of the crawlers 1b runs on the raised ground after the rubble. The digging portion 5a at the tip is always horizontal, the digging of the ground can be performed at the same depth over the entire width, and the cab 8 mounted on one or both front sides of the main body frame 4 is also kept horizontal. This is to make it easier for the operator to drive.

At the center of the body frame 4, a first conveyor 9 (9a is a hydraulic motor for driving the first conveyor) which is inclined so as to carry the gravel carried from the gravel removing device 5 backward is mounted. Is done.

Further, a second conveyor 11 (11c) is provided on the rear side of the main body frame 4 via a turning device 10.
Is mounted with its driving hydraulic motor). The second conveyor 11 has a horizontal portion 11a for receiving gravel falling from the rear end of the first conveyor 9 and an inclined portion 11b connected thereto.
Consists of

As described above, the second conveyor 11 is made rotatable because, as shown by a two-dot chain line in FIG. This is for projecting the upper end of the second conveyor 11 onto the bed of a truck (not shown) to be transported to the right or left side of the second conveyor 11.

As shown in FIG. 1, the inclined portion 11b is provided with a folding hydraulic cylinder 12 to reduce the height during transportation.
Is configured to be foldable forward.

On the main body frame 4, a debris transfer device 5, a first conveyor 9, and a second conveyor 11 are installed at the center.
Hydraulic power units 13a, 13
b. That is, the debris transfer device 5, the first conveyor 9, and the second conveyor 11 are arranged in the center, and the hydraulic power units 13a, 13b are arranged separately on the left and right on the main body frame 4.

As can be seen from FIG. 2, the width W1 of the excavation portion 5a of the debris transfer device 5 is made smaller than the vehicle width W2 (preferably (1/3) W2≤W1≤ (2/3) W2 It is configured so that a large excavating force can be obtained.

FIG. 4 is a side view, FIG. 5 is a plan view, and FIG. In the debris transporting device 5, a large number of interlockingly rotating debris rods 15 are arranged in a front-rear direction on a frame 14 having a lower surface opening, and a front excavation part 5a is formed in a tapered reiki shape.

As shown in FIG. 6, a debris rod 15 of the present embodiment has a shaft (a round shaft in this example) 16
A hole is formed in the outer surface of the device, and a number of pins 17 are implanted in the hole. A gear 18 is fixed to the end of each shaft 16, and as shown in FIG. 7, a relay gear 19 is interposed between the adjacent gears 18, 18 so as to mesh with both.

As shown in FIGS. 4 and 5, two hydraulic motors 20, 21 are mounted on the side of the frame 14.
The hydraulic motor 20 drives the region shown in FIG. 5A, that is, the front hydraulic motor that drives the front set of debris rods 15, and the hydraulic motor 21 drives the rear set of debris rods 15 shown in B and C. . That is, the gravel rod of the previous group A (10 in this example)
In the present invention, the relay gear 19 is connected to the gear 18 at the shaft end,
As shown in FIG. 7, the gear 18 is interposed between the gears 18 and driven by the front hydraulic motor 20 during degraving work (running in the direction of arrow Xa). ) To move earth and sand and gravel backwards by rotating them at the same speed in a series of directions. Further, the debris rods 15 of the rear sets B and C are also successively rotated at the same speed by the rear hydraulic motor 21. 69, 70
Are rotational speed detectors for the debris rods 15 of the front set A, the rear set B, and the rear set B, respectively, and these detected speeds are displayed on display means (not shown) of the cab 8.

The debris rod 15 of the front group A has a pin 17 spirally disposed so that the earth and sand may move from the outside to the inside (center side), whereby the side plate 2 provided on the frame 14 may be provided.
2 to reduce the friction required for debris.

Further, in the front area B (in this example, composed of eleven debris rods 15) of the rear group, the pin 17 is spirally moved so that the earth and sand move from the inside (center side) to the outside. It is arranged so that the area for performing the rubble action is evenly distributed over the entire area and the rubble removal efficiency is increased.

Further, the pin 17 in the rear area C of the rear group (in this example, the pin 17 is composed of twelve debris rods 15) has a pin 17 in a helical shape so that the earth and sand is shifted from the outside to the inside (center side). , So that the earth and sand on the debris rod 15 can be put on the first conveyor 9 without spilling.

As shown in FIG. 4 and FIG.
An auxiliary transport device (feeder) 40 is attached to the upper part of the device 4. The auxiliary transport device 40 includes a driving rotator 42 such as a driving sprocket or roller on the left and right that is rotated by a motor 41, and a driven rotator 43 such as a driven sprocket or roller on the front and left. And a rubber plate 45, which is a member for feeding gravel, attached to the endless rotating band 44.

In FIG. 4, reference numeral 47 denotes a debris transfer device 5 for loosening excavated soil when the soil has a high viscosity.
It is a scraping device to send to the top. Transport device 4 of the present embodiment
Reference numeral 7 denotes a vertically moving frame 49, a rotary blade 50 for scraping attached to a front portion of the vertical frame 49, a rotating blade 51 for scraping earth and sand attached to a rear portion of the vertical frame 49, and A driving device including a hydraulic motor 52 for rotating the blades 50 and 51, sprockets 53, 54 and 55, and chains 56 and 57, and a frame 14 for adjusting the vertical position of the vertical frame 49.
Hydraulic cylinder 59 and X-shaped link 60 mounted on
Consists of

The excavation part 5a is attached to the front part of the frame 14 so as to be rotatable around a pin 61.
And a bracket 62 on the lower surface of the frame 14, are connected by a pin 63, a cushioning rubber 64, a hydraulic exciter 65, a rod 66, and a pin 67. , The excavating portion 5a moves back and forth.

As shown in FIG. 1, the track frame 1a
A reiki 75 for loosening the ground compacted by the crawler 1b is attached by a hydraulic cylinder 75a so as to be able to land and lift.

FIG. 8 is a side view showing the configuration of an embodiment of a digging depth measuring instrument according to the present invention. The depth measuring device 76
Is configured as follows. Frame 1 of debris transfer device 5
An arm 77 is provided so as to protrude forward from one of the left and right sides of the front part of the arm 4, and a swing arm 79 is attached from the front end of the arm 77 so as to be swingable up and down around a pin 78, and a lower end of the swing arm 79. Excavation part 5a centering on pin 80
A sled 81 that travels on the ground GL that is not excavated is mounted.

Reference numeral 82 denotes a depth indicator provided at a position on the frame 14 where the operator can view the driver's cab 8, and the depth indicator 82 is provided via a mounting frame 83 as shown in FIG. Scale 84 indicating the depth (cm)
And a pointer 85. A rope 86 is connected to the pointer 85, and the rope 86 is connected to a sheave 87 on the top of the mounting frame 83, a sheave 88 mounted on the frame 14, and a pin 80 for mounting the sled 81, as shown in FIG. Is wound around a sheave 90 attached to a bracket 89 provided on the frame 14 so as to be located almost directly above the end, and the end point is connected to the pin 80. Instead of the pin 80, a sheave may be provided, and a rope 86 may be hung on the sheave to connect the end point to the bracket 89. The rope 86 or the pointer 85 is provided with a weight 91 or a spring for urging the pointer 85 downward.

The depth measuring device 76 is configured such that, as the depth H of the excavated portion 5a becomes deeper (shallower) with respect to the sled 81 traveling on the ground surface GL (depth 0), the sled 81 is relative to the frame 14. Since the height becomes high (low), the weight 91 raises (lowers) the rope 86 at the positions of the sheaves 88 and 90, and lowers (raises) the pointer 85 on the display 82. That is, the depth is displayed by the pointer 85.

By visually checking the depth indicator 82, the operator monitors the excavation depth and adjusts the degree of expansion and contraction of the hydraulic cylinder 6 so that the excavation depth becomes constant. As described above, by moving the debris machine while adjusting the depth of the debris transfer device 5, it is possible to always perform excavation and debris at a suitable depth.

The tip of the bracket 89 has a sled 8.
It also has a depth detector 93 which has a reel (not shown) for winding the rope 92 connected thereto and converts the unreeling amount of the rope 92 into an electric signal and outputs it.

FIG. 10 is a block diagram showing an embodiment of the present invention in which a printer 95 for outputting the depth provided in the cab 8 is provided. In FIG. 10, 93 is the depth detector,
Reference numeral 96 denotes a rotation detector for detecting the rotation of the traveling motor 1d to measure the traveling distance of the debris excavator. These output signals are output by a signal processor 97 provided in the operator's cab 8 to the excavation depth, It is converted into a traveling distance signal, and the displacement of the recording line 99 in the width direction Y of the chart 98 with respect to the feeding direction X of the output chart 98 of the printer 95 is displayed as a depth.
In this way, by causing the printer 95 to output the excavation depth in relation to the traveling distance, it is possible to keep a record of the depth at which the excavation was performed.

In practicing the present invention, FIG.
A depth indicator 100 may be provided in the cab 8 to display the depth in the cab 8.

Further, when the present invention is carried out,
As disclosed in Japanese Patent Publication No. 0-184802, the rubble transfer device 5 has a structure that can be bent between the front set A and the rear sets B and C, or has a large number of square holes and projections on the outer periphery. A rubble rod having another structure, such as a rubble rod formed by fitting a gravitational plate to a square shaft, may be used. The present invention can also be applied to a structure in which the main body frame 4 is fixed on the track frame 1a, and the gravel transport device 5 is attached to the track frame 1a so as to be able to swing left and right.

[0036]

According to the first aspect of the present invention, since a depth measuring device having a display so that the operator can recognize the excavation depth is provided, the operator can know the excavation depth while visually checking the display, and can know the excavation depth. The excavator can be run while adjusting the depth of the debris transport device so that the depth reaches the target depth, which makes it possible to always excavate and excavate at a suitable depth. Become.

According to the second aspect, since the printer can output the excavation depth in relation to the traveling distance, it is possible to keep a record of the depth at which the debris was removed.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a degraving machine according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front view of a main body of FIG. 1;

FIG. 4 is a side view of the debris transfer device of the present embodiment.

5 is a plan view showing a rubble rod arrangement section of the rubble transport device of FIG. 4;

FIG. 6 is a cross-sectional view of the debris transfer device of FIG.

FIG. 7 is a side view showing an interlocking device of a debris rod of the debris transfer device of FIG. 4;

FIG. 8 is a side view showing one embodiment of a depth measuring instrument according to the present invention.

FIG. 9 is a perspective view showing an example of a display provided in the depth measuring device of FIG.

FIG. 10 is a configuration diagram showing one embodiment of a depth display unit according to the present invention.

[Explanation of symbols]

1: running body, 1a: track frame, 1b: crawler, 1c: hydraulic motor, 2: pin, 3: hydraulic cylinder,
4: body frame, 5: debris transport device, 5a: excavation section,
6: pin, 7: hydraulic cylinder, 8: operator's cab, 9: first conveyor, 9a: hydraulic motor, 10: turning device, 10
a: hydraulic motor, 11: second conveyor, 11c: hydraulic motor, 12: hydraulic cylinder, 13a, 13b: hydraulic power unit, 14: frame, 15: debris rod, 1
6: shaft, 17: pin, 18: gear, 19: relay gear, 20: front hydraulic motor, 21: rear hydraulic motor, 2
2: side plate, 40: auxiliary transfer device, 41: hydraulic motor, 4
2: drive rotating body, 43: driven rotating body, 44: infinite rotating belt, 45: rubber plate, 47: scraping device, 49: vertical moving frame, 50: rotating blade for scraping, 51: rotary blade for scraping earth and sand, 52: hydraulic motor, 53 to 55: sprocket, 56, 57: chain, 59: hydraulic cylinder, 6
0: X-link, 61: pin, 62: bracket, 6
3: pin, 64: rubber for cushioning, 65: hydraulic exciter, 6
6: rod, 67: pin, 75: reiki, 76: depth measuring instrument, 77: arm, 78, 90: pin, 79: swing arm, 81: sled, 82: depth indicator, 83: mounting frame , 84: scale, 85: pointer, 86, 92: rope, 8
7, 88, 90: sheave, 89: bracket, 91:
Weight, 93: depth detector, 95: printer, 96; rotation detector, 97: signal processing circuit, 98: output chart, 9
9: recording line, 100: depth indicator

Continuing from the front page (72) Inventor Koichi Otsuka 650, Kandachi-cho, Tsuchiura-shi, Ibaraki Prefecture Inside the Tsuchiura Plant of Hitachi Construction Machinery Co., Ltd. F term in the company (reference) 2B034 AA06 BA06 BA07 BC06 BD02 BG01 BG02 BG05 BG07 GA01

Claims (2)

[Claims] A self-propelled vehicle is provided with a debris transfer device having a digging portion at a front end thereof, wherein the rubble transfer device is capable of adjusting a bite depth of the front end of the excavation portion from the ground. In the degraving machine, comprising a depth measuring device for measuring the depth of the excavated portion, the measuring device, the depth measured at a position that can be visually observed by an operator in the cab installed on the vehicle A debris machine comprising a depth indicator for displaying the depth. 2. A debris machine according to claim 1, wherein a travel distance measuring means of said debris machine and a depth detected by said depth measuring device in relation to a travel distance measured by said measurement means. And a printer for displaying the information.