JP2769969B2 - In-vehicle type soil improvement device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle type soil which is equipped with a device for improving soil generated from lifeline construction of telephone lines, gas pipes, electric wires, etc. and public works by redevelopment of a city. It relates to an improved device.

[0002]

2. Description of the Related Art Conventionally, as this type of on-board type soil improvement device, for example, a soil improvement vehicle described in Japanese Patent Publication No. 63-571 is known. This soil improvement vehicle is provided with a generated soil hopper provided with a generated soil quantitative feeder at the rear end of the vehicle body, and provided with a soil improved agent hopper provided with a soil improved agent quantitative feeder in front of the generated hopper. A mixer is provided below the soil hopper and the soil conditioner hopper, and a bucket conveyor for raising the soil mixed with the soil conditioner by the mixer is connected to the mixer. A belt conveyor is provided that passes over the cabin, and the soil mixed with the soil conditioner is carried out from the upper part of the cab of the vehicle body to the front of the vehicle body.

[0003]

However, the conventional on-vehicle type soil improvement device has the following problems.
It has not been put to practical use. Most of the excavation work that generates the excavated soil is in urban areas,
And since there are many night works, it is necessary to keep the noise low, but no soundproofing measures have been taken. In particular, regarding noise, as the power source, P
A TO (power take-out mechanism) is used, and it is necessary to rotate the running engine at a high speed to cover the power of the generated soil improvement device, which causes a rise in noise. on the other hand,
There is also an example in which an engine generator is provided separately as a power source without using the PTO of the driving engine, but only a commercially available engine generator is left alone, and no special soundproofing measures are taken. However, relatively high noise has been generated, and noise has become a problem, which has hindered its practical use. Therefore, an object of the present invention is to provide a vehicle-mounted generated soil improvement device that can be used for nighttime work in an urban area and has relatively low noise (noise less than that of a low-noise type construction machine).

[0004]

Means for Solving the Problems] To solve the above problems, the in-vehicle generator soil modifying apparatus of the present invention is equipped with an engine generator as a power source for instrumentation置全body, and generation to be introduced into the waste soil hopper The entire apparatus is covered with a box-shaped carrier having sound absorbing materials installed on the inner surfaces of the side walls and the ceiling wall, except for the entrance of the soil and the through-hole of the improved soil discharge conveyor for discharging the improved soil. The engine generator is mounted on the right side of the vehicle body, the engine generator body is covered with a box-shaped sound absorbing cover containing a sound absorbing material, and an intake duct provided on the sound absorbing cover is provided on a right side wall of the cargo bed. Connected to
While connecting the exhaust duct provided on the sound absorbing cover to the exhaust port provided on the ceiling wall of the cargo carrier, the exhaust pipe of the engine generator body is inserted through the through hole provided on the floor of the vehicle body, and the muffler provided under the floor It is preferable to connect.

[0005]

In the on-board type soil improvement device of the present invention, the noise of the power source is reduced, and the noise generated from the engine generator and other devices is transmitted through the entrance of the generated soil and the improved soil unloading conveyor. Except for things that leak from the mouth,
Sound is absorbed or absorbed by the carrier and the sound absorbing material on the inner surface of the carrier. Also, the engine generator body of the engine generator mounted on the right side of the vehicle body is covered with a sound absorbing cover, and the intake, exhaust and exhaust of combustion gas of the engine generator are
By performing the operation on the ceiling wall and the floor of the vehicle body, the engine generator is located on the opposite lane side, is covered with the double sound absorbing cover, and the noise is dispersed in three directions. Further, as the sieving device, a double-bed type inclined vibration sieve is preferable. Further, a low noise type silencer is preferable.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 8 are drawings showing an embodiment of a vehicle-mounted generated soil improvement device of the present invention. A generated soil hopper 2 into which generated soil generated by excavation is loaded is mounted on a vehicle body 1 of a vehicle such as a truck on the left side (sidewalk side) of a rear end portion. At the open end of the supply port of the generated soil hopper 2, a large angle (for example, 100 mm or more) in the generated soil is sieved and dropped to the rear of the vehicle body 1. Is provided. Further, the bottom wall of the generated soil hopper 2 is provided so as to be inclined toward the front side of the vehicle body 1 so as to have a required angle, and a discharge port is provided at a lowermost portion of the bottom wall. Below the generated soil hopper 2, a generated soil supply conveyor 4 for supplying generated soil to an impact-type crushing and mixing machine described later is provided. The excavated soil supply conveyor 4 functions as a constant volume supply device for excavated soil by a constant speed drive by a motor powered by an engine generator, which will be described later. Is inclined so as to have an upward slope of an angle of 20 to 35 ° (30 ° in the embodiment) toward the front side. If the inclination angle of the generated soil supply conveyor 4 exceeds 35 °, it becomes difficult to transport the generated soil, and if it is less than 20 °, the effect of reducing the space cannot be expected.

[0007] In front of the generated soil hopper 2 in the vehicle body 1, the generated soil supplied by the generated soil supply conveyor 4 is crushed and mixed together with a soil improving agent supplied at a required ratio from a soil improving agent tank described later. The impact type crushing and mixing machine 5 (impact mixer) is mounted. Here, the crushing and mixing refers to crushing the generated soil, partially crushing it, adjusting the particle size, and further uniformly mixing the generated soil with the soil conditioner. The impact-type crushing and mixing machine 5 is driven by a motor 6 powered by an engine generator, which will be described later. As shown in FIGS. 9 and 10, a supply port 7 is provided above and a discharge port is provided below. In a box-shaped casing 9 provided with a motor 8, a horizontal rotor shaft 10 operatively connected to the motor 6, a rotary impactor 12 fixed to a rotor 11 attached to the horizontal rotor shaft 10, and a rotary impact It is equipped with a bending-type crushing plate 13 arranged on the front side (the left side in FIG. 9) of the vehicle body 1 so as to face the child 12. The opening end of the supply port 7 of the casing 9 is impact-type crushed so as not to require an extra height for connection with the generated soil supply conveyor 4 and a crushed mixed soil discharge conveyor described later. In order to reduce the height of the mixer 5, it is made to correspond to the inclination angle of the generated soil supply conveyor 4,
Is inclined so as to have an upward slope of an angle of 20 to 35 ° toward the front side. The opening end of the discharge port 8 of the casing 9 is at an angle of 20 to 35 ° toward the front side of the vehicle body 1 (25.7 in the embodiment) similarly to the opening end of the supply port 7.
(°). Below the impact type crushing and mixing machine 5, a crushed mixed soil supply conveyor 14 for supplying the crushed mixed soil to a double-bed type inclined vibrating sieve described later is provided. Crushed mixed soil supply conveyor 1
Numeral 4 is driven by a motor powered by an engine generator, which will be described later. Like the generated soil supply conveyor 4, the impact type crushing and mixing machine 5 is used to reduce the space in the longitudinal direction of the vehicle body 1. The discharge port 8 is provided to be inclined so as to correspond to the inclination angle of the opening end.

In front of the impact-type crushing and mixing machine 5 in the vehicle body 1, a double-bed inclined vibrating screen as a sieving device for sifting the crushed mixed soil supplied by the crushed mixed soil supply conveyor 14. 15 is mounted with the left side of the vehicle body 1 as a supply end and the right side (on the opposite lane) as a discharge end. As shown in FIG. 11, the inclined vibrating sieve 15 includes a sieve frame 16 supported by an elastic support device (not shown) such as a coil spring, and a sieve having two openings stretched over the sieve frame 16 in two stages. The meshes 17a and 17b (for example, the upper stage has a mesh of 40 mm and the lower stage has a mesh of 13 mm), a supply port chute 18 provided on the supply end side of the upper sieve mesh 17a, and discharge of the respective sieve meshes 17a and 17b. Discharge chute 19a, 19b provided at the end side, and lower screen mesh 17
b, a switching damper 20 interposed between the discharge end of the b. and a discharge port chute 19b thereof, and a vibration motor 21 mounted on both outer sides of the sieve frame 16 and serving as a vibration oscillator driven by an engine generator described later. It is composed of The switching damper 20 is used to take out the lower sieve of the upper sieve net 17a as improved soil by switching to the position shown in FIG. 11, and as shown in FIGS. 12 and 13, the outer end of the damper shaft 22. It is operated by the handle 23 attached to the. The handle 23 allows the protrusion 23a projecting from the tip of the handle 23 to loosely fit into the guide groove 24a of the arc-shaped guide plate 24 provided outside the sieve frame 16, and
It is fixed at a predetermined position by tightening a lock nut 25 screwed to 3a. The inclined vibrating sieve 15
Is not limited to the case of two-stage screens 17a and 17b,
Sieve mesh of the step (for example, the upper step is 40 mm, the middle step is 2
0 mm and the lower stage are 13 mm. ) Or four or more stages. In this case, the switching damper 20 is provided at the discharge end of each floor except the top floor. In addition, sieve nets 17a and 17b and chutes 18 and 19
For a and 19b, it is preferable to use rubber or other material such as urethane in order to prevent adhesion of the improved soil.

Below the double-bed type inclined vibrating screen 15,
A first improved soil discharge conveyor 27 for discharging the improved soil under the sieve guided and dropped by the undersize chute 26 is provided. The first improved soil discharge conveyor 27 is driven by a motor that uses an engine generator described later as a power source, and as shown in FIGS. 1 and 5, in order to reduce the space in the width direction of the vehicle body 1, The right side of the vehicle body 1 is a supply end, the left side is a discharge end, and is provided to be inclined in correspondence with the inclination angle of the inclined vibrating screen 15. A conveyor installation space 28 is provided on the left side of the driver's seat 101 of the vehicle body 1 by appropriately retreating its left side from the left side edge of the vehicle body 1 as shown in FIGS. 1 to 3 and 6. And
In the conveyor installation space 28, the second improved soil discharge conveyor 2 for discharging the improved soil under the sieve carried out to the left side of the vehicle body 1 by the first improved soil discharge conveyor 27 to the front of the vehicle body 1.
9 are provided. The second improved soil export conveyor 29
Like the first improved soil unloading conveyor 27 and the like, it is driven by a motor that uses an engine generator described later as a power source. The lower part of the discharge end of the first improved soil unloading conveyor 27 is defined as a supply end. The discharge end side extending forward is inclined so as to have an upward slope. The second improved soil discharge conveyor 29 is provided so as to be able to bend rearward via a hinge pin 30 provided at a position corresponding to the front end of the vehicle body 1, and has a maximum height in a state where it is bent rearward. Is provided so as to be equal to or less than the maximum height. The bending and extension of the second improved soil unloading conveyor 29 are performed by the second improved soil unloading conveyor 2 with the hinge pin 30 interposed therebetween.
9 having one of the V-shaped links 31 attached to the supply side of the second improved soil discharge conveyor 29.
Is performed by swinging. On the other hand, as shown in FIGS. 3 to 5 and 11, an oversize chute 33 for guiding and dropping the oversize on the sieve is disposed close to the discharge end side of the double-bed inclined vibrating sieve 15. Below this oversize chute 33, an oversize discharge conveyor 34 for discharging the oversize on the sieve to an oversize discharge port (not shown) provided at the rear end of the floor of the vehicle body 1 is provided. I have. Oversize conveyor 3
Reference numeral 4 is driven by a motor powered by an engine generator, which will be described later, and is mounted horizontally on the right side of the vehicle body 1 immediately above the floor.

On the right side of the crushed mixed soil supply conveyor 14 in the vehicle body 1, as shown in FIGS. 1 to 3, a soil conditioner tank 35 is provided with the oversize discharge conveyor 34.
Is located above the Soil conditioner tank 3
Reference numeral 5 denotes a soil conditioner such as lime (slaked lime or quick lime) or Portland cement which is externally received and stored. The soil improving agent is supplied at a required ratio to the generated soil on the generated soil supply conveyor 4 at a required ratio. As shown in FIGS. 1 to 4, the conveyors 4, 14, 27, 29, and 34 and the impact-type crushing and mixing machine 5 are provided on the right side of the generated soil hopper 2 in the vehicle body 1.
An engine generator 37 serving as a power source is mounted above the oversize carry-out conveyor 34. As shown in FIGS. 14 to 17, the engine generator 37 has a gantry 39 for arranging the engine generator body 38 above the oversize carry-out conveyor 34,
The engine generator main body 38 on the pedestal 39 is covered with a box-shaped sound absorbing cover 40 in which a sound absorbing material (not shown) such as feather glass is provided. The sound-absorbing cover 40 is provided with an intake duct 41 in which a similar sound-absorbing material is installed. An intake port 41a of the intake duct 41 is described later in order to intake air for combustion and cooling of the engine generator body 38. It is connected to the air inlet provided on the right side wall of the box-shaped carrier.
The sound absorbing cover 40 is provided with an exhaust duct 42 containing a sound absorbing material.
Reference numeral 2a is connected to an exhaust port provided on the ceiling wall of the carrier to exhaust the air that has cooled the engine generator body 38. On the other hand, the exhaust pipe 43 of the engine generator body 38 is
In order to exhaust the combustion gas from under the floor of the vehicle body 1, the mounting 39
And a low-noise silencer 44 (FIGS. 2, 4, 6, and 8) inserted through a through hole provided in the floor of the vehicle body 1 and attached below the floor.
Reference).

As shown in FIG. 1 to FIG. 8, the generated soil improving apparatus such as the generated soil hopper 2, the impact type crusher / mixer 5, the inclined vibrating sieve 15, and the engine generator 37 has an inclined rear end upper part. The whole is covered with a box-shaped carrier 45 inclined in accordance with the inclination of the burglar 3. The loading bed 45 is for reducing the noise generated from the generated soil improvement device, and is an input port 4 for the generated soil to be input to the generated soil hopper 2.
6 (see FIG. 8), the second to carry out the improved soil in front of the vehicle body 1
The through-hole 47 (see FIG. 2) of the improved soil discharge conveyor 29, the intake port 48 (see FIG. 7) to which the intake duct 41 of the engine generator 37 is connected, and the exhaust to which the exhaust duct 42 of the engine generator 37 is connected. Except for the mouth (not shown), a sound absorbing material 49 (see FIGS. 2 to 5) such as rock wool and feather glass is provided on the inner surface of the side wall and the ceiling wall. The left and right side walls and the rear side wall of the box-shaped carrier 45 are shown in FIG.
As shown in FIG. 8, a plurality of open / close doors 50a, 50b, 50c, and the like for checking, maintaining, and monitoring the generated soil improvement device.
50d and 50e and monitoring windows 51a and 51b are provided.

1 to 3, reference numeral 52 denotes an operation panel for operating the generated soil improvement device, and 53 denotes a generated soil supply conveyor 4.
Connecting cover for covering the connecting part of the
Reference numeral 4 denotes a connection cover that covers a connection between the crushed mixed soil supply conveyor 14 and the inclined vibrating sieve 15. In FIG. 1, reference numeral 55 denotes a large lump tank for accommodating large lump sieved by the inclined burglar grinder 3, and reference numeral 56 denotes oversize on the sieve discharged from the rear end of the vehicle body 1 by the oversize carry-out conveyor 34. Oversize carrier car, 5
Reference numeral 7 denotes an improved soil carrier vehicle for storing the improved soil under the sieve carried out to the front of the vehicle body 1 by the second improved soil carrying conveyor 29.

[0013] In order to improve the soil generated from the construction of a lifeline such as a telephone line by using the on-board type soil improvement device having the above-mentioned structure, to obtain the improved soil and to use the backfill material,
As shown in FIG. 18, a work vehicle 58 and a security vehicle 59 are arranged before and after a road W which is a construction section, and security lights are provided so as to partition the front of the work vehicle 58, the rear of the security vehicle 59, and the opposite lane side. 60 are arranged, and a vehicle-mounted generated soil improvement device is arranged behind the work vehicle 58 in front. When the generated soil generated by excavation of the excavator 61 such as a backhoe is thrown into the generated soil hopper 2 of the on-board type generated soil improvement device, the generated soil of a required particle size is stored in the generated soil hopper 2, while It is sieved by the inclined burgundy 3 and falls to the rear of the on-board generated soil improvement device, and is stored in the large lump tank 55. The generated soil in the generated soil hopper 2 is discharged at a constant rate by the generated soil supply conveyor 4, and the generated soil is supplied from the soil conditioner tank 35 to the generated soil by the soil conditioner quantitative supply device 36 on the generated soil supply conveyor 4. It is supplied to the impact-type crushing and mixing machine 5 together with the soil conditioner supplied in a fixed ratio at a required ratio to form crushed mixed soil. The crushed mixed soil is supplied to the double-bed type inclined vibrating sieve 15 by the crushed mixed soil supply conveyor 14 and sieved. The improved soil under the sieve is separated into a first improved soil discharge conveyor 27 and a second improved soil discharge conveyor. 29, while being accommodated in an improved soil carrier vehicle 57 arranged in front of the on-board generated soil improvement device, the oversize on the sieve passes through an oversize chute 33 and an oversize discharge conveyor 34, and the rear end of the vehicle body 1 Is stored in the oversize carrier wheel 56 from the oversize discharge port of the section. The improved soil in the improved soil carrier vehicle 57 is transported to the backfill area where excavation and laying of telephone lines and the like have been completed and used as a backfill material, while the oversize in the oversize carrier vehicle 56 is used. Is again fed into the generated soil hopper 2 and becomes a desired improved soil. Here, how much noise can be reduced before and after the noise countermeasures according to the present invention is shown below with the noise value of 7 m on the machine side. Before countermeasures: about 79 dB (A) After countermeasures: about 67 dB (A) As a result, by applying the noise countermeasures according to the present invention, the reference value of the low-noise type construction machine (70 dB at a noise value of 7 m on the machine side) is obtained.
(A) and below, it can be seen that the noise is reduced to near 65 dB (A), which is the reference value of the ultra-low noise type construction machine.

[0014]

As described above, according to the on-vehicle type soil improvement device of the present invention, the noise of the power source is reduced, and the noise generated from the engine generator and other devices is reduced. Except for those leaking from the inlet and the through-hole of the improved soil unloading conveyor, sound is absorbed or absorbed by the sound absorbing material on the floor of the car body, the loading platform and the inner surface of the loading platform, so it can be used for night work in urban areas. Things. Further, the engine generator body of the engine generator mounted on the right side of the vehicle body is covered with an adsorption cover, and the intake, exhaust and exhaust of the combustion gas of the engine generator are performed on the right side wall, the ceiling wall of the carrier, and the floor of the vehicle body. Thus, the engine generator is located on the opposite lane side, is covered with the double sound absorbing cover, and the noise is dispersed in three directions, so that the generated noise can be further reduced.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view showing an embodiment of a vehicle-mounted generated soil improvement device of the present invention.

FIG. 2 is a side sectional view of the vehicle-mounted generated soil improvement device of FIG. 1;

FIG. 3 is a plan sectional view of the vehicle-mounted generated soil improvement device of FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a sectional view taken along line VV in FIG. 2;

FIG. 6 is a left side view of the vehicle-mounted generated soil improvement device of FIG. 1;

FIG. 7 is a right side view of the vehicle-mounted generated soil improvement device of FIG. 1;

FIG. 8 is a rear view of the vehicle-mounted generated soil improvement device of FIG. 1;

FIG. 9 is a side sectional view of an impact-type crushing and mixing machine in the on-board type generated soil improvement device of FIG.

FIG. 10 is a rear view in which a part of the impact-type crushing and mixing machine shown in FIG. 9 is broken.

11 is a rear view in which a part of the sieving device of the on-board type soil improvement device of FIG. 1 is cut away.

FIG. 12 is a rear view of a main part of the sieving apparatus of FIG. 11;

FIG. 13 is a right side sectional view of a main part of the sieving apparatus of FIG.

FIG. 14 is a right side view of the engine generator in the on-board type soil improvement device of FIG. 1;

FIG. 15 is a plan view of the engine generator of FIG. 14;

FIG. 16 is a front view of the engine generator of FIG. 14;

FIG. 17 is a rear view of the engine generator shown in FIG. 14;

FIG. 18 is an explanatory diagram of a use state of the on-board type soil improvement device of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Generating hopper 5 Impact-type crushing and mixing machine 15 Inclined vibrating sieve 29 2nd improved soil carrying conveyor 35 Soil condition improving agent tank 37 Engine generator 38 Engine generator main body 40 Sound absorbing cover 41 Sound absorbing duct 42 Exhaust duct 43 Exhaust pipe 44 Low noise silencer 45 Packing bed 46 Input port 47 Through port 48 Inlet port 49 Sound absorbing material

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Noriyuki Nakagawa 1780 Kamikono, Yachiyo-shi, Chiba Prefecture Inside the Yachiyo Plant of Kawasaki Heavy Industries, Ltd. (72) Inventor Osamu Nakajima 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Telephone Co., Ltd. (72) Inventor Toshiyuki Yamada 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Shishin Tsutsumi 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation In-company (72) Inventor Jiro Kokubo 3-3 Sarugaku-cho, Shibuya-ku, Tokyo Within the Telegraph and Telephone Construction Association (58) Field surveyed (Int.Cl. ⁶ , DB name) E02F 7/00 B60P 3/00

Claims (2)

(57) [Claims] 1. A side wall and a ceiling, except for an engine generator as a power source of the entire apparatus, and an entrance of a generated soil to be fed into a generated soil hopper and a through hole of an improved soil discharge conveyor for discharging the improved soil. An on-board type soil improvement device, wherein the entire device is covered by a box-shaped carrier having a sound absorbing material inside a wall. 2. The engine generator is mounted on the right side of the vehicle body, and the main body of the engine generator is covered with a box-shaped sound-absorbing cover containing a sound-absorbing material. Connected to the intake port provided in
While connecting the exhaust duct provided on the sound absorbing cover to the exhaust port provided on the ceiling wall of the cargo carrier, the exhaust pipe of the engine generator body is inserted through the through hole provided on the floor of the vehicle body, and the muffler provided under the floor The vehicle-mounted generated soil improvement device according to claim 1, wherein the device is connected.