JPH07164393A - Water jet machine - Google Patents

Abstract

PURPOSE:To make the reciprocating scope of a nozzle support body coincide to a working place according to its width, so as to carry out an efficient work, by making the length of a support beam to which the support body of a water jet nozzle is installed allowable to run, extended and contracted. CONSTITUTION:In a water jet machine in which a support beam 14, rails are projected at the upper and the lower sides of a running car body 1 in the lateral width direction, is provided, and sliding rollers 24 are fitted to the rails, and the support body 23 of a water jet nozzle 27 is installed allowable to run to the support beam 14; the support beam 14 is made in an expansion structure its inner pipe is slid in the lateral direction to its outer pipe 17. And to the first rails 18a provided at the upper side and the lower side of the outer pipe 17, the second rails 18b whose one ends are combined to the inner pipe end are provided in parallel, and the sliding rollers 24 are made in a double roller engaged to the parallel first and the second rails 18a and 18b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water jet machine for cleaning, chipping, polishing, etc. by a water jet which is a super high pressure water jet.

[0002]

2. Description of the Related Art A water jet is a technology that uses the phenomenon of applying a very high pressure to water and destroying the other party when it is jetted. It has a special pump that generates super high pressure in water and a jet speed that narrows the water flow. And a holding / moving mechanism that securely holds the nozzle against the reaction force of the jet and moves it to an appropriate position with respect to the object to be processed.

There is a water jet machine which utilizes such a water jet and which is provided with a water jet nozzle in the front portion of a traveling vehicle body having a traveling mechanism including wheels and crawler belts, and ejects the water jet while traveling. In this case, assuming that the traveling direction is the X direction, a water jet nozzle holding / moving mechanism is provided in the front part of the traveling vehicle body in order to obtain a working range in the Y direction orthogonal to the X direction.

Holding such a water jet nozzle
The moving mechanism is provided with a support beam laterally provided with a rail projecting in the front width direction of the traveling vehicle body, and a support body of a water jet nozzle having a roller sliding on the rail is movably attached to the support beam.

[0005]

As described above, in the conventional water jet aircraft, the working range in the Y direction orthogonal to the traveling direction is determined by the length of the support beam, and this support beam is approximately the same as the width of the traveling vehicle body. If it is less than or equal to it, it will be difficult to work near obstacles such as walls, and if it is long enough to always extend from the running vehicle to the left and right, when it is used for road finishing etc. I get in the way and can't work. In addition, it is inconvenient because the width of the passage is large during the transfer.

The object of the present invention is to eliminate the disadvantages of the above-mentioned conventional example and to make the length of the support beam for movably mounting the support of the water jet nozzle expandable, so that the nozzle can be adjusted according to the width of the working place. An object of the present invention is to provide a water jet machine that can match the reciprocating range of the support and perform efficient work.

[0007]

In order to achieve the above object, the present invention provides a support beam having rails projecting vertically in the left-right width direction of a traveling vehicle body and engaging a sliding roller with the rails to provide support beams. In a water jet machine in which the support of the water jet nozzle is rotatably attached to the outer pipe, the support beam has an expandable structure in which the inner pipe slides left and right outward with respect to the outer pipe, and one end is provided on the first rail provided above and below the outer pipe. Parallel the second rail connecting the end to the inner pipe end,
The sliding roller is a double roller that engages with the first and second rails arranged in parallel, and the water jet nozzle has a plurality of water jet nozzles branched from the central rotating shaft tube at equal intervals on the circumference. The support beam is supported by a link arm from the front part of the traveling vehicle body so that it can be moved up and down, and an elevating jack is interposed between the supporting beam and the traveling vehicle body. It is a summary.

[0008]

According to the present invention as set forth in claim 1, the support beam for movably mounting the support body of the water jet nozzle is a telescopic structure in which the inner pipe slides outward from the outer pipe to the left and right, and is in an extended state. Then, the second rail also moves together with the inner pipe, and the second rail, which has been lined up with the same length as the first rail until then, shifts to the left and right.

On the other hand, the sliding roller of the support is a double roller, and both of these rails are engaged at the place where the first and second rails are lined up, but only one of the rails is present in the central portion. At one end or the other, one of the double rollers is engaged with the rail, so that the support can move on the rail without any trouble.

According to the second aspect of the present invention, in addition to the above-described action, by swiveling a plurality of water jet nozzles, the surface can be uniformly operated, and an accurate peeling operation can be performed.

According to the third aspect of the present invention, the position of the water jet nozzle can be automatically determined by adjusting the vertical position of the support beam portion with the lifting jack.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a side view showing an embodiment of a water jet machine of the present invention, FIG. 2 is a plan view of the same as above, and FIG.

In FIG. 1, reference numeral 1 denotes a crawler type traveling vehicle body having a rubber crawler belt 1a, which includes a diesel engine 2, a radiator / oil cooler 3, a fuel tank 4, a traveling pump 8,
In addition to the traveling hydraulic motor 5, the traveling valve 6 and other mechanisms necessary for traveling, the operating oil tank 9, the working machine pump 10, the working machine valve 11 and other operating mechanisms are installed, and the steering lever right is used as a driving operation mechanism. Turn 12a, steering lever left turn 12b, clutch lever 12c, brake lever 12d
And so on.

A link arm 13 is provided at the front part of the traveling vehicle body 1 with supporting arms on opposite sides of the parallelogram, and the support beam 14 is supported by the link arm 13, but at a diagonal position of the link arm 13. A lifting jack 15 is provided, and the support beam 14 can be moved up and down by changing the flat angle of the link arm 13 by expanding and contracting the lifting jack 15.

As shown in FIGS. 4 and 5, the support beam 14 adopts a double tube structure of an inner tube 16 and an outer tube 17, and an outer tube 17
On the other hand, the inner tube 16 has a stretchable structure that slides outward in the left and right directions.

First rails 18a are provided above and below the outer pipe 17 so as to project along the lengthwise direction, and second rails 18b are arranged in parallel with the first rails 18a. tube
It slides up and down 17 and its end is connected to the flange of the end of the inner pipe 16.

The support beam 14 is provided with outriggers 22 having casters 21 at the lower ends at the left and right ends, that is, at the outer ends of the inner pipe 16.

Reference numeral 23 in the drawing denotes a water jet nozzle described later.
27 supporting bodies, a sliding roller 24 as a double roller for traveling the rails 18a and 18b is provided on the upper and lower sides, and the supporting body 23
Is attached to the support beam 14 via the sliding rollers 24 so as to be movable in the longitudinal direction thereof.

A rotary shaft tube 26 having a swivel 25 is provided on the support body 23 so as to be rotationally driven by a hydraulic motor 28, and the tip of the rotary shaft tube 26 located at the center is branched to the left and right to The water jet nozzles 27 shall be arranged at equal intervals on the circumference. This embodiment is a water jet nozzle
27 is a case where 2 to 4 are provided at symmetrical positions,
The number can be increased and scattered radially.

The water jet nozzle 27 is surrounded by a cylindrical hood 29 to prevent water, crushed stones, and cement from scattering around.

As shown in FIG. 6, the support 23 is pulled by a chain 30 stretched between the left and right ends of the support beam 14. The chain 30 is an endless one and is provided at the outer end of each inner pipe 16. The sprocket 31 is wound around the sprocket 31 and then wound around the sprocket 32 provided at the inner end of the inner pipe 16 and folded back, and then wound around the sprocket 33 provided at the outer end of the outer pipe 17 and hung on the sprocket 33. hand over. In this way, the sprocket 32 always plays a role of absorbing the slack of the chain 30 even if each outer tube 17 moves left and right.

A hydraulic motor 34 (see FIG. 2) was connected to one of the sprockets 31 for driving.

The sliding mechanism of the outer tube 17 with respect to the inner tube 16 of the support beam 14 may be manually operated or moved by a screw shaft.
In this embodiment, a telescopic hydraulic cylinder 19 is stretched around the center of the outer pipe 17 and the left and right ends of the inner pipe 16. If the left and right ends of this hydraulic cylinder 19 are connected to the hinge by pin connection,
Smooth expansion and contraction operation can be obtained.

Next, usage and operation will be described. The traveling vehicle body 1 is caused to travel, and at the same time, the hydraulic motor 34
To move the chain 30 to reciprocate the support 23 along the support beam 14. When the traveling vehicle body 1 travels, the support beams 14 are supported by the outriggers 22 with the left and right casters 21.

Then, the water jet nozzle 27 is rotationally driven by the hydraulic motor 28 while the water jet nozzle 27 carries out operations such as peeling and polishing.

The support beam 14 for moving the support 23 of the water jet nozzle 27 extends the hydraulic cylinder 19 and extends the outer tube when it is necessary to extend the support beam 14.
The inner pipe 16 is slid to the left and right with respect to 17. In this extended state, the second rail 18b also moves with the inner pipe 16 as shown in FIG. 5, and the second rail 18b, which has been lined up with the same length as the first rail 18a until then, shifts to the left and right.

On the other hand, the sliding roller 24 of the support member 23 is a double roller, and both rails 18a and 18b are engaged at the place where the first and second rails 18a and 18b are lined up. Even at the central portion or the end where only one rail exists, one of the double rollers engages with the rail, so that the support can move on this rail without any trouble.

[0028]

As described above, in the water jet machine of the present invention, the length of the support beam to which the support of the water jet nozzle is movably mounted can be expanded or contracted, so that the nozzle can be adjusted according to the width of the work place. By matching the reciprocating range of the support, efficient work can be performed.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a water jet machine of the present invention.

FIG. 2 is a plan view showing an embodiment of the water jet machine of the present invention.

FIG. 3 is a partially cutaway side view of an essential part showing an embodiment of a water jet machine of the present invention.

FIG. 4 is a perspective view of the support beam at the time of reduction.

FIG. 5 is a perspective view of the support beam when it is extended.

FIG. 6 is a front view showing a moving mechanism of a support body of a water jet nozzle of a support beam.

[Explanation of symbols]

1 ... Running vehicle 1a ... Crawler track 2 ... Diesel engine 3 ... Radiator
Oil cooler 4 ... Fuel tank 5 ... Travel hydraulic motor 6 ... Travel valve 8 ... Travel pump 9 ... Hydraulic oil tank 10 ... Work equipment pump 11 ... Work equipment valve 12a ... Steering lever right turn 12b ... Steering lever left turn 12c ... Clutch Lever 12d ... Brake lever 13 ... Link arm 14 ... Support beam 15 ... Lifting jack 16 ... Inner tube 17 ... Outer tube 18a ... First rail 18b ... Second rail 19 ... Hydraulic cylinder 21 ... Caster 22 ... Outrigger 23 ... Support 24 … Sliding roller 25… Swivel 26… Rotating shaft tube 27… Water jet nozzle 28… Hydraulic motor 29… Hood 30… Chain 31, 32,33… Sprocket 34… Hydraulic motor

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[Procedure amendment]

[Submission date] October 13, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

As shown in FIG. 6, the support 23 is pulled by a chain 30 stretched between the left and right ends of the support beam 14. The chain 30 is an endless one and is provided at the outer end of each inner pipe 16. The sprocket 31 is wound around the sprocket 31 and then wound around the sprocket 32 provided at the inner end of the inner pipe 16 and folded back. hand over. In this way, the sprocket 32 always plays a role of absorbing the slack of the chain 30 even if the inner tubes 16 move left and right.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

(72) Inventor Sadao Watanabe 1-2-19 Sakuragaoka, Setagaya-ku, Tokyo Maruma Heavy Vehicle Co., Ltd. (72) Inventor Taiji Oka 2-3-6 Ginza, Chuo-ku, Tokyo Ohkura A Quatech Co., Ltd. (72) Inventor Takehiko Takao 2-3-6 Ginza, Chuo-ku, Tokyo Okura Aqua Tech Co., Ltd. (72) Inventor Kazuyoshi Shimazaki 1-3-6 Iwamotocho, Chiyoda-ku, Tokyo Sato Road Within the corporation

Claims (3)

[Claims] 1. A water jet machine provided with support beams having rails projecting up and down in a lateral direction of a traveling vehicle body, and sliding rails are engaged with the rails so that a support body of a water jet nozzle is movably attached to the support beams. In the above, the support beam has an expansion and contraction structure in which the inner pipe slides left and right outwards with respect to the outer pipe, and is provided above and below the outer pipe.
A water jet machine characterized in that a second rail, one end of which is connected to the inner pipe end, is arranged in parallel with the rail, and the sliding roller is a double roller engaged with the first and second rails arranged in parallel. 2. A plurality of water jet nozzles branched from a rotating shaft tube at the center are arranged at equal intervals on the circumference, and the circumference is bent by a cylindrical hood.
Water jet machine described. 3. The water jet machine according to claim 1, wherein the support beam is supported by a link arm so as to be vertically movable from a front portion of the traveling vehicle body, and an elevating jack is interposed between the support beam and the traveling vehicle body.