JPH0437990Y2 - - Google Patents

Description

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

The present invention relates to a vehicle equipped with an excavator and earth ejector that can perform integrated excavation and earth removal mainly when installing and repairing underground pipes and constructing manholes.

[Conventional technology]

2. Description of the Related Art Conventionally, a work vehicle is known that is equipped with an earth removal device on a vehicle platform that collects earth and sand via a vacuum hose. In addition, a circular hole cutter is installed at the front of the vehicle chassis to cut a circular hole in order to construct a manhole or excavate hole for the purpose of repairing buried pipes for work related to soil collection and earth removal work. A work vehicle is known that is hung from the tip of a boom of a crane that extends long toward the rear of the vehicle body, and is used for constructing manholes by lowering the cutter to the outside of the vehicle body using the crane as necessary.

[Problem that the idea aims to solve]

The above-mentioned soil collection and removal work and the circular cutting work are related to each other, and there was a problem in that both work vehicles had to be moved to the work site during the work. The present invention has been made to solve the above problems.

[Means to solve the problem]

In order to achieve the above object, the present invention is equipped with a collection chamber on the chassis for collecting excavated soil through a vacuum hose, and a negative pressure suction force from a vacuum suction blower is applied to the collection chamber. With,
The rear of the vehicle chassis is equipped with a boom that is supported by the vehicle chassis via a left-right moving device, pivoted to the left and right via a vertical pivot pin, and extendable and retractable toward the rear of the vehicle body. A cutter bit for a circular hole and an outrigger that can move up and down are provided at the tip with a drive device via an elevating body, and the cutter bit and outrigger can be moved by contraction of the boom, movement in the left and right directions, and rotation from side to side.
It is characterized by being able to be moved to a state where it is stored on the undercarriage side.

[Effect]

With the above configuration, the excavator/earth removal machine equipped vehicle of the present invention is equipped with an earth removal device on the chassis that collects excavated soil via a vacuum hose. The vehicle is equipped with a cutter and an outrigger, and the cutter and outrigger can be moved to a desired position at the rear of the vehicle body for use by the operation of a boom. Further, the cutter and outrigger are moved to a state where they are stored on the vehicle chassis side by the boom, and excavated earth and sand can be collected by the vacuum hose, and furthermore, the vehicle body can be easily moved.

【Example】

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. 1 to 3, reference numeral 1 designates a low-floor truck equipped with a driver's seat 2 at the front, and an engine 5 for driving a blower 4 is mounted on a chassis 3 of the truck. Alongside the engine 5, a box-shaped filter chamber 6 and a collection chamber 7 are mounted on the chassis 3. The blower 4 is connected via a filter chamber 6 to a collection chamber 7 by a duct 8 . The filter chamber 6 includes an upper suction chamber 6a that communicates with the duct 8, and the upper suction chamber 6a and the lower suction chamber 6b are separated by a partition plate 6c, and the partition plate 6c has a bellows-shaped hose. A filter bag 9 is suspended. The lower end of the filter bag 9 is connected and fixed to a support plate 10, and the support plate 10 is connected to the tension coil spring 1.
1 and is elastically supported at the lower part of the filter chamber 6. The lower part of the filter chamber 6 is connected to the collection chamber 7 through a passage 12 communicating vertically,
It communicates with the upper part of the collection chamber 7. The collection chamber 7 has a sediment inlet 7 provided on the rear wall.
A collision plate 13 extending obliquely and front and rear is disposed opposite to a and suspended by a tension coil spring 14, and the collection chamber 7
A sliding door 15 for discharging earth and sand is provided at the bottom, and can be opened and closed by sliding back and forth using a hydraulic actuator 16. A flexible vacuum hose 17 is connected to the earth and sand inlet 7a, and its tip is equipped with a suction nozzle 18 having an air suction opening 18a from above. On the other hand, at the rear of the chassis 3, there is a guide rail 19 extending left and right, into which a sliding piece 20 is slidably inserted. Above sliding piece 2
0 is screwed together. The sliding piece 20 is
The screw 21 is moved along the guide rail 19 by rotating a handle 22 provided at one end thereof.
Further, the base end of a boom 24 is pivotally attached to the sliding piece 20 via a vertical pivot pin 23 so as to be rotatable left and right. An inner cylinder 24b is fitted into the cylinder 24a so as to be freely movable forward and backward. A mounting plate 25 is fixed to the tip of the inner cylinder 24b, and a cutter bit unit 26 is removably mounted on the mounting plate 25. As shown in detail in FIGS. 4 to 6, the cutter bit unit 26 has a horizontal frame 29 attached to the lower part of a vertical frame 28 to which a detachable mounting plate 27 is fixed to the mounting plate 25. At the bottom of the vertical frame 28, a pair of left and right outriggers 30, 30 are installed so that they can extend and contract up and down on both sides of the horizontal frame 29 using a hydraulic cylinder mechanism.
1 is installed. The rear end of the horizontal frame 29 and the vertical frame 28
An elevating support column 32 is supported between the support plate 28a and the support plate 28a extending rearward from the upper end of the support plate 28a. Elevating column 32
A rack 32a is provided in the elevating body 33, which is provided on the elevating column 32 so as to be movable up and down.
A pinion (not shown) that meshes with the pinion a is provided, and an elevating handle 34 for raising and lowering the elevating body 33 by rotating this pinion is provided on one side of the elevating body 33. A Katsutabito support section 36 is supported on the elevating body 33 via a support arm 35 . A rotating shaft 38 having a hydraulic motor 37 on the upper part is inserted and supported in the Katsutabitsu support part 36.
A cutter bit 39 is attached to the lower part of 8. Katsutabitsu 39 has a cylindrical part 4 with its lower part open.
Numerous diamond chips 41 on the lower circumference of 0
A mounting portion 42 is provided at the upper center of the cylindrical portion 40 to be screwed onto the rotating shaft 38 . The mounting portion 41 is provided with a center support 44 extending downward through the center of the cylindrical portion 40 and having a center drill 43 attached to its lower end. The center support 44 has a hollow part halfway up, and a water hole 45 having a water fountain 45a is bored in the upper part of the cylindrical part 40. Water is supplied from a water supply section 46 provided in the cylindrical section 40 through a part of the rotating shaft 38 and through the mounting section 41, and water is sprinkled along the inner circumference of the cylindrical section 40 by the rotation of the cutter bit 39, and the cutting friction heat generated by the diamond chip 41 is absorbed. It is designed to cool down the air. In vehicles equipped with excavators and earth-evacuation machines configured in this way, the boom is used when performing circular cutting, such as when forming excavation holes for the purpose of repairing buried piping on asphalt roads, or when constructing manholes. Mounting plate 2 on the mounting plate 25 at the tip of 24
Attach the Katsutabitsu unit 26 via 7,
Then, the boom 24 is rotated around the pivot pin 23. In this state, for example, by rotating the handle 22, the sliding piece 20 is moved along the guide rail 19 and positioned at the rear center of the chassis 3 (see FIGS. 1 and 2). Next, the boom 24 is rotated, and the inner cylinder 24b is expanded and contracted to move the cutter bit unit 26 to the moving wheel 3.
1 to position the Katsutabit 39 at a desired position, operate the outriggers 30, 30 to support the Katsutabit unit 26 against the ground, and operate the lifting handle 34 to move the Katsutabit 39 to the desired position.
is lowered and the motor 37 is driven to perform cutting. At this time, the water supplied to the water passage hole 45 is ejected from the water fountain 45a, descends along the inner periphery of the cylindrical portion 40, and cools the cutting friction heat generated by the diamond chip 41. In the above embodiment, the boom 24 is extendable and rotatable, and can move left and right along the guide rail 19, so the position of the cutter bit 39 can be moved appropriately without changing the stopping position of the automobile. Excavation location can be selected. Further, since the boom 24 can be moved left and right behind the chassis 3 by moving the sliding piece 20, it is convenient for excavating on one side of the chassis 3, for example, in a side road such as a sidewalk. In addition, in the above embodiment, the boom 24 is retracted,
With the cutter bit unit 26 attached to the boom 24, the sliding piece 20 is moved to one end side of the guide rail 19, and the boom 24 is rotated around the pivot pin 23 to be stored at the rear of the chassis 3. I can do it. In addition, in the process of cutting the manhole hole and proceeding with excavation from that part, the blower 4 is operated by the drive of the engine 5, and the vacuum negative pressure is applied to the filter chamber 6 and the collection chamber 7, and the vacuum suction force is Since this extends to the vacuum hose 17, by directing the suction nozzle 18 at the end of the hose to the excavated area,
It sucks up the excavated earth and sand along with air. In the collection chamber 5, dirt hits the collision plate 13 and falls below the collection chamber 7, but the dust rides on the airflow and reaches the filter bag 9, where it is removed from the airflow. Only the airflow is then discharged into the atmosphere via the blower 4. In this way, the excavated earth and sand are collected in the collection chamber 7, and when necessary, the vehicle body is moved, the sliding door 15 is opened, and the earth and sand is discharged to the required location.

[Effect of the idea]

As explained above, the excavation and
According to the vehicle equipped with the earth removal machine, the rear part of the chassis equipped with the vacuum excavation and earth removal equipment can be used to extend and retract rearward, and a boom that can be moved left and right and rotated is equipped with a cutter and outriggers. Since a vehicle equipped with vacuum excavation and earth removal equipment can be equipped with a cutter for circular holes at the same time, it is not only convenient for similar types of work, but also allows easy positioning of the cutter to the working position. In addition, the cutter bit and outrigger can be easily moved to the vehicle chassis and stored, so vacuum excavation and earth removal work can be performed following cutting work for circular holes. Vehicles equipped with this can be easily moved.

[Brief explanation of drawings]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a side view of the same, Figure 3 is a partially vertical side view showing the state of earth removal work, Figure 4 is a side view of the Katsutabit unit, Figure 5 is a side view of the Katsutabit lifting section, and Figure 6 is a side view of the Katsutabit unit. FIG. 1... Truck, 2... Driver's seat, 3... Chassis,
4... Blower, 5... Engine, 6... Filter chamber, 6a... Upper suction chamber, 6b... Lower suction chamber,
6c... Partition plate, 7... Suction chamber, 7a... Inflow port, 8... Duct, 9... Filter bag, 10
...Support plate, 11 ...Tension coil spring, 1
2... Passage, 13... Collision plate, 14... Tension coil spring, 15... Sliding door, 16... Hydraulic actuator, 17... Vacuum hose, 18...
...Suction nozzle, 18a...Air suction opening, 19
... Guide rail, 20 ... Sliding piece, 21 ... Screw, 22 ... Handle, 23 ... Vertical pivot pin, 24 ... Boom, 24a ... Outer cylinder, 24b
... Inner cylinder, 25, 27 ... Mounting plate, 26 ... Katsuta bit unit, 28 ... Vertical frame, 29
...Horizontal frame, 30...Outrigger, 31
...Moving wheel, 32... Elevating column, 32a... Rack, 33... Elevating body, 34... Elevating handle,
35... Support arm, 36... Katsutabitsu support section, 37... Hydraulic motor, 38... Rotating shaft, 39
... Katsutabitsu, 40 ... Cylindrical part, 41 ... Diamond chip, 42 ... Mounting part, 43 ... Center drill, 44 ... Center support, 45 ...
Water hole, 45a... fountain, 46... water supply section.

Claims (1)

[Scope of Claim for Utility Model Registration] Equipped with a collection chamber on the vehicle chassis for collecting excavated soil through a vacuum hose, and applying negative pressure suction force from a vacuum suction blower to the collection chamber, At the rear of the vehicle, there is a boom that is supported by the vehicle chassis via a left-right movement device, pivoted to the left and right via a vertical pivot pin, and can be extended and retracted toward the rear of the vehicle. , a circular hole cutter having a drive device via a lifting device and an outrigger that can move up and down are provided, and the cutter and outrigger are stored on the chassis side by contraction of the boom, movement in the left and right directions, and rotation left and right. A vehicle equipped with an excavator and earth remover, which is characterized by being able to be moved to different locations.