JP2001206671A - Portal carriage for burying pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portal carriage for burying a pipe simplifying and miniaturizing a device at a low cost. SOLUTION: This portal carriage comprises right and left carriage frames 13 supporting wheels 14, 15, right and left main portal frames 11 having inverted V-shaped side faces erected from the carriage frames 13, a suspension device 17 provided on an upper transverse frame 16 connecting the upper ends of the right and left main portal frames 11, guide frames 29 provided on the right and left carriage frames 13, a lift rack 40 lifted or lowered along the guide frames 29, a screw jack 33 lifting or lowering the lift rack 40, lift frames 24 provided on the lift rack 40, pipe support rollers 26 provided over the groove width direction between the right and left lift frames 24 to support a pipe 8 and capable of retreating to the side from the lower section of the pipe 8 by moving on the horizontal plane, and lift frame connecting brackets 25 having a front arch shape and connecting the right and left lift frames 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portal trolley for burying a long pipe in a trench cut into the ground without using a heavy machine or the like.

[0002]

2. Description of the Related Art To bury a long pipe made of steel pipe along the side of a road, a groove is usually cut in the side of the road, and a pipe of a predetermined length (usually 12 m) is moved to a groove position by a truck. Transport,
A heavy machine is used to suspend the pipe in the groove, the pipes are successively added in the groove by welding, and then the earth and sand are buried thereon. In this case, there is a demand for a device that can be constructed in a narrow construction site without temporarily closing one lane of the road and without using a crane.

[0003] As an example of an apparatus that meets this demand, there is a pipe handling apparatus disclosed in Japanese Patent Application Laid-Open No. 10-109897. As described in the abstract of the publication, this device includes a base frame divided into right and left, a portal frame connecting the left and right base frames, a vertically movable winch frame provided on an upper part thereof, and a large frame. Diameter tube suspension winch, up and down slide frame provided before and after the portal frame, large diameter tube capturing guide arm and large diameter tube fixing clamper provided on the beam, and provided at the base frame lower part A handling device having left and right traveling means capable of changing width during traveling, a rail having a height difference,
It is configured by a truck bogie device composed of one bogie.

The large-diameter pipe is straddled by a portal frame, held by a guide arm, fixed by a clamper, moved, and hung at a desired place in a digging groove by a winch. According to this pipe handling device, on a narrow construction site such as a narrow road, a pipe burying operation can be performed without closing one lane of the road and without using a crane.

[0005]

According to the above-mentioned prior art, there is an advantage in that labor for transferring the large-diameter pipe from the transport vehicle to the handling device is saved, but there is still a point to be improved. Was. First, the mechanism of the handling device is generally complex, large, heavy, and expensive to manufacture. Second, in connection with the overall complexity of the handling device, the mechanism of the guide arm for capturing the tube and the clamper for securing the tube is complicated, and the guide arm moves up and down on a vertical plane. The device is retracted from the tube gripping position, making the device tall,
The device tends to be unstable. In addition, the clamper mechanism can grip a pipe, but does not have a mechanism that can move the pipe from a truck to a bogie while smoothly moving the pipe in the longitudinal direction while gripping the pipe. Thirdly, the handling apparatus has variable width left and right running means (crawlers). In addition to the complexity of the crawler itself, there is a mechanism for changing the width, such as providing a crawler telescopic cylinder on the left and right. It is significantly complicated.

SUMMARY OF THE INVENTION The present invention has been proposed to improve the first to third drawbacks. It is an object of the present invention to provide a portal trolley for burying pipes in which the apparatus is simplified, downsized, and reduced in cost. With the goal.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a portal trolley for burying pipes according to the present invention is configured as follows. According to a first aspect of the present invention, there is provided a portal gantry for pipe burial which receives a pipe loaded on a truck from a cargo bed, transports the pipe to a pipe burying position across a digging groove, and suspends and installs the pipe in the groove. A gate-type frame with wheels slightly wider than the groove, a left-right connecting member attached to the gate-type frame so as to be able to ascend and descend and arranged between the groove width directions, and a front-rear direction connecting member fixed to the left-right connecting member A lift support frame, a pipe support roller disposed so as to be freely connectable to the lift frame in the groove width direction, and rotatably disposed in a horizontal plane with one end of the roller as a support shaft; and the left and right connecting member. A pipe holding jig for fixing a pipe placed on the pipe supporting roller, and a pipe hanging suspension attached to a portal frame, and when hanging a pipe in a digging groove, Pipe with support shaft as fulcrum Lifting roller is horizontally to a position which is not an obstacle turning characterized by being retractably constructed.

In a second aspect of the present invention, the running interval of the portal frame with wheels is made wider than the general width of the excavation trench and narrower than the width of the meeting place, and a rail for passing the wheels through the meeting place is provided. It is characterized by the following.

A portal trolley for burying pipes according to the present invention is a portal frame with wheels, provided with a hanging device for hanging a pipe, and provided on the portal frame so as to be movable up and down, a left-right connecting member and a front-rear connecting member. , A pipe support roller provided on the lift frame, and a pipe holding jig provided on the left and right connecting members, etc., so that the configuration is significantly simplified and miniaturized as compared with the related art. Further, since the tube supporting roller is provided so as to be horizontally turned and retracted from the tube supporting portion, the height of the portal bogie can be made as low as possible, and the bogie is stabilized. In addition, when the tube is transferred from the truck to the bogie, the tube can be smoothly moved to a predetermined position while being placed on the tube support roller and moving the tube in the longitudinal direction.

Further, since the portal frame travels with wheels, the traveling mechanism can be simplified in this respect as well, and the traveling interval between the wheels is wider than the general portion of the excavation trench. Since the vehicle travels, the vehicle can travel smoothly without the need for a variable wheel width mechanism.

[0011]

Next, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 to FIG. 3 show a portal trolley for burying pipes (referred to as a pipe transport trolley 10 with a lift) according to the first embodiment of the present invention.
FIG. 4 shows a side view, a partially broken plan view, and a front view of FIG.
(A), (b) is an explanatory plan view in the case where the bogie 10 passes by a traveling rail at a meeting place portion that has been widened and buried when the pipe is buried, and an enlarged sectional view of the traveling rail. FIGS. It is explanatory drawing which shows the operation | work procedure performed using the attached pipe | carrier carrier 10.

The tube carrier 10 with lift is shown in FIGS.
As shown in the figure, the tubes 8 loaded on the truck 9 are
a, which is transported to a pipe burying position across a groove 1 excavated on the side of a road 3 or the like, and suspended and installed in the groove 1.

In FIG. 1 to FIG. 3, the tube carrier 10 with lift is composed of the following main components. That is, the pipe transport vehicle 10 includes front and rear wheels 14, 15 and wheels 14,
Left and right bogie frames 13 supporting left and right 15, main gate type frame 11 in which sides rising from front and rear ends of bogie frame 13 are assembled in an inverted V-shape, left and right main gate type frames 11
Between the suspension device 17 provided on the upper horizontal frame 16 connecting the upper ends of the front and rear wheels 14 and 15,
A guide frame 29 that rises vertically from the left and right bogie frames 13, a left and right elevating platform 40 that moves up and down along the guide frame 29, a screw jack 33 that raises and lowers the elevating platform 40, and a lift frame 24 provided on the elevating platform 40. A pipe supporting roller 26 supported by the left and right lift frames 24 and provided in the groove width direction and supporting the lower surface of the pipe 8 and moving laterally from the lower part of the pipe 8 by moving on a horizontal plane; Left and right lift frames 2
The main components are a front arch-shaped lift frame connecting bracket 25 that connects the four sections.

The structure of each part will be described in order. Wheels 14, 1
In order to mount the support frame 5, a support frame 42 is fixed to the front and rear ends of the left and right bogie frames 13, and the support frame 42 is provided with the bearing 21. This bearing part 2
1 includes brackets 22 and 23 for holding wheels 14 and 15
Are supported. Front wheels 14,14
Is mounted on the bearing part 21 so that the direction can be changed by turning about the support shaft 43 via the brackets 22 and 23. 2, the rear wheels 15, 15 do not have the support shaft 43 of the front wheel 14, and the brackets 22, 23 are directly fixed to the mounting portion 21a corresponding to the bearing portion 21, as shown in FIG. ing.

The bearing 2 on one side (the left side in FIG. 3) of the left and right wheels 14 and 15 is mounted on a bogie frame 13.
, While the bearing portion 21 on the other side (the right side in FIG. 3) is
Slide member 1 that constitutes inclination adjusting device 19 of cart 10
9a.

The slide member 19a is lifted and lowered by rotating the slide screw shaft 20 by means of a slide screw 20 rotatably supported by a slide bearing portion 20a fixed to the outside of the support frame 42. Installed. Therefore, by rotating the screw shaft 20 for sliding, and adjusting the vertical frame 12 of the main gate type frame 12 on the side where the inclination adjusting device 19 is provided, the horizontal on the inclined road 3 can be maintained and stably installed. Thereby, the eccentric load is not applied to the cart 10, and the long pipe 8 can be safely hung at a predetermined place.

The support arm 36a of the traveling rail table 36 is welded to the vertical frame 12 of the main gate type frame 12 on one side (the left side in FIG. 3), and the support arm 36a and the support arm 36a The rail accommodating portion formed by the stopper plate 36b rising from the tip has a meeting portion 1 of the groove 1.
a (shown in FIG. 4) is accommodated.

Next, the main gate type frame 11 is composed of front and rear vertical frames 12 inclined in an inverted V-shape. A suspending device 17 provided on an upper horizontal frame 16 connecting between upper ends of the left and right vertical frames 12 is for suspending the pipe 8 and lowering it in the groove 1 when the pipe is buried. The suspension device 17 includes a screw shaft 34 rotatably supported by a bearing member 44 fixed to the upper horizontal frame 16, a nut member 45 non-rotatably screwed to the screw shaft 34, and a nut member 45. A chain block 3 including a suspension member 17a that moves to the left and right, a chain sprocket 35a attached to one end of the screw shaft 34, and a chain 35b hung thereon.
Consists of five.

According to this suspension device 17, FIGS.
As shown in (c), when the tube 8 is suspended and embedded in the groove 1, the chain shaft 35 is operated by operating the chain sprocket 35.
Is turned, and the suspension member 17a that suspends the tube 8 is moved to the left and right via the nut member 45, so that fine adjustment is performed for centering the previously buried tube 8 and the newly installed tube 8. While hanging in the groove 1.

Next, a support mechanism of the lift frame 24 on which the tube support rollers 26 are mounted will be described. Lift frame 2
Reference numeral 4 denotes a substantially gate-shaped or hook-shaped side surface, and an upper horizontal frame (front-rear connection member) 46, a support frame 47 provided at a rear end thereof, and a roller support frame 48 provided at a front end thereof. And a total of four locations are provided on the front, rear, left and right. The upper horizontal frames 46 of the lift frame 24 are connected by a front frame-shaped lift frame connecting bracket 25.

The tube supporting roller 26 supported by the lift frame 24 has a support concave portion 26 having an intermediate portion concaved in an arc shape.
The support shafts 50 penetrate the shaft center of the tube support roller 26 from both ends, and a pin hole 51 is formed at the tip of each support shaft 50.

On the other hand, a roller receiving bracket 28 having a pin hole 52 is provided inside the lower end of the roller supporting stand frame 48 in the lift frame 24, and the pin hole 52 and the tip of the roller support shaft 50 are provided. By inserting the connecting pin 27 in the vertical direction by aligning the pin holes 51 of the respective pipe supporting rollers 26, the respective tube supporting rollers 26 can be respectively held by the left and right roller supporting stand frames 48. In this case, one of the left and right connecting pins 27 of the tube support roller 26 is on the pivot side, and the other is on the detachable side.

Accordingly, when the pipe 8 supported on the pipe supporting roller 26 is lowered, as shown in FIG.
Pull out the connecting pin 27 on the detachable side from the pin holes 51 and 52,
Each pipe supporting roller 2 is supported by the pivot pin 27 as a fulcrum.
6 is moved along the horizontal plane and retracted to the side from the lower part of the tube 8 so as to be parallel to the tube 8, so that the operation of lowering and lowering the tube 8 in the downward direction of the tube support roller 26 can be performed smoothly. I can do it.

Next, the support frame 47 in the lift frame 24 is erected from both front and rear ends of the elevating gantry 40. When the elevating gantry 40 moves up and down, the tube supporting rollers 26 are supported via the supporting gantry 47. Lift frame 2 equipped with
4. The whole goes up and down. The left and right lifting frames 40 are supported at the lower ends of the screw shafts 31, and are moved up and down by raising and lowering the screw shafts 31 by the screw jacks 33 provided on the jack frame 55.

The lower end of the screw shaft 31 is
Is connected to the lifting pedestal 40 via a screw jack coupling bracket 32 installed on the upper surface of the middle part of the cradle. The upper end of the screw shaft 31 is
, So that it can be moved up and down without rotating. The support guide member 54 is mounted on a mounting plate 53 fixed to the upper horizontal frame 16 of the main gate type frame 11.

On the other hand, the screw jack 33 is shown in FIG.
As shown in FIG. 3 (left side), it is installed on the upper surface of an arm plate 56 fixed to a jack base 55. This arm plate 56
Is fixed to the lower portion of the jack base 55 and projects horizontally inward. The screw jack 33 is installed on the upper surface projecting inward from the arm plate 56. Both ends of the jack base 55 are fixed to the main gate type frame 11 and the guide frame 29.

The screw jack 33 includes a driving gear (worm wheel) 33b and a driven gear (worm).
33c is housed in a case by meshing,
The driven gear is a nut member 5 screwed to the screw shaft 31.
7 are provided integrally. Therefore, the driving gear 33
When the handle (not shown) connected to the drive shaft 33a of FIG. 3b is rotated and the driven gear is turned, the nut member 57 rotates, and the screw shaft 3 screwed to the nut member 57 non-rotatably.
1 can be moved up and down, and the elevating gantry 40 integrated therewith can be moved up and down.

In order to smoothly raise and lower the elevating gantry 40, the elevating gantry 40 is provided with a roller mounting frame 58.
Are mounted on the upper and lower portions of the mounting frame 58.
A guide roller 30 that rolls along the side surface of the guide frame 29 is provided. Upper and lower guide rollers 30
As shown in FIG. 2, they are provided at 90-degree intervals in a planar arrangement, and are in contact with the side surface of the guide frame 29 from a right angle direction. It can move up and down smoothly without swinging.

To connect the left and right lift frames 24,
At a central upper portion of the lift frame connecting bracket 25 having a front arch shape, a pressing device 59 for pressing the pipe 8 supported by the pipe supporting roller 26 from above is provided. That is,
A nut member 60 of the presser device 59 is fixed to the upper side surface of the center of the connection bracket 25, and a screw shaft 39 is screwed to the nut member 60. The lower end of the screw shaft 39 has the same curvature as the pipe 8. A holding jig 61 having an arc portion is attached.

Therefore, by rotating the screw shaft 39 by operating the handle 65, the tube 8 supported by the tube support roller 26 can be pressed and fixed from above.

As shown in FIG. 4, the running distance between the front and rear wheels 14 and 15 of the bogie 10 is slightly larger than the general width 1b of the excavation groove 1 and, as shown in FIG.
It is provided at a running interval narrower than the width of the office section 1a to be widened. Therefore, the right and left wheels 14 and 15 themselves can travel on the general portion 1b without moving in the groove width direction, and in the meeting place width 1a, as shown in FIG.
By arranging the rails 37 along the travel courses 4 and 15, the vehicle can travel smoothly. The cross-sectional shape of the traveling rail 37 may be provided in a groove-shaped cross section as shown in FIG.

In the illustrated embodiment, the upper portions of the left and right main gate frames 11 are connected by a reinforcing member 18. Further, a brake device 62 is provided on the rear wheel 15.

The working steps performed using the tube carrier 10 with a lift according to the present invention will be described with reference to FIGS. (A) Work until the tube 8 mounted on the truck 9 is moved to the tube carrier 10 with lift. (FIG. 5a) (1) The pipes 8 on the carrier 9a of the truck 9 are directly moved to the tube carrier 10 with a lift arranged at the rear. (2) The transport roller 38 is arranged on the truck bed 9a. (3) Adjust the level of the tube support rollers 26 of the carriage 10 to the height of the carrier 9a. This is screw jack 3
The lifting and lowering pedestal 40 and the lift frame 24 are moved up and down by the operation 3. (4) The tube 8 on the loading platform 9 a is rolled on the transport roller 38 and moves to the carriage 10. (5) After the movement to the carriage 10, the center position is adjusted, the handle 65 is operated, and the tube 8 is fixed on the tube support roller 26 by the tube holding device 59. (B) Work to move the pipe 8 from the pipe carrier 10 with a lift to the groove 1. (FIG. 5a) (6) The carriage 10 carrying the pipe 8 is moved to the groove 1. (7) At the time of movement, the screw jack 33 is operated to lower the level of the tube support roller 26,
Place tube 8 in low position. (C) Hanging the pipe 8 in the groove 1. (FIGS. 6a, b,
c) (8) The chain block 35 is set on the suspension device 17, and the suspension wire 63 whose upper part is locked by the suspension member 17a is wound around the tube 8 and suspended. (9) Operate the chain block 35 to slightly lift the tube 8. (10) Connecting pin 2 at one end (left end) of tube support roller 26
7 is removed from the pin hole, and the tube supporting roller 26 is swung in a horizontal plane with the connecting pin 27 at the other end (right end) as a support shaft.
And is retracted from the lower part of the tube 8. (11) Thereby, the lower part of the pipe 8 is opened, and the pipe 8 can be hung in the groove 1 as it is. (12) If the road 3 has a slope, use the slide screw 2
By turning 0, the slide member 19a of the tilt adjusting device 19 is moved up and down, and the front and rear wheels 14, 15 on one side are moved up and down, and the carriage 10 is held horizontally and stabilized.

[0035]

According to the present invention, there is provided a portal trolley for burying pipes, which comprises a portal frame with wheels and a suspension for hanging a pipe,
The lift frame is provided on the portal frame so as to be able to move up and down, and includes a left and right connecting member and a front and rear direction connecting member, a tube supporting roller provided on the lift frame, a tube holding jig provided on the left and right connecting member, and the like. By directly lifting the long pipe slightly and rotating and retracting the pipe support roller, the long pipe can be hung above the ground or on the premises as it is. In addition, work safety is improved, and the configuration is significantly simplified and miniaturized as compared with the related art, and the manufacturing cost is reduced.

Further, since the tube supporting roller is provided so as to turn horizontally and withdraw from the tube supporting portion, the height of the portal bogie can be made as low as possible, and the bogie is stabilized. further,
When the tube is transferred from the truck to the bogie, the tube can be smoothly moved to a predetermined position while being placed on the tube support roller and moving the tube in the longitudinal direction.

Further, since the portal frame travels on wheels provided with a constant traveling interval, the traveling mechanism can be simplified in this respect, and the traveling interval between the wheels is slightly wider than that of the general portion of the excavation groove. In the meeting place, since the vehicle runs on rails, there is an excellent effect that the vehicle can run smoothly without the need for a complicated variable mechanism of the wheel width.

[Brief description of the drawings]

FIG. 1 is a side view of a portal trolley for burying pipes according to Embodiment 1 of the present invention.

FIG. 2 is a partially cutaway plan view of FIG.

FIG. 3 is a front view showing a part of FIG.

FIG. 4A is an explanatory plan view showing a case where a tube-type trolley for burying a pipe passes through a widened and dug office when burying a pipe,
(B) is an enlarged sectional view of a rail.

FIGS. 5 (a) and (b) show first and second embodiments according to the present invention.
FIG. 4 is an explanatory diagram showing the operation procedure of FIG.

FIGS. 6 (a), (b), and (c) are explanatory views showing third, fourth, and fifth work procedures according to the present invention, as viewed from the front of a portal trolley for burying pipes.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Groove 1a Meeting place part 1b General part 2 Rail 3 Road 8 Pipe 9 Truck 9a Luggage 10 Pipe carrier with lift 11 Main gate type frame 12 Vertical frame 13 Bogie frame 14 Wheel 15 Wheel 16 Upper horizontal frame 17 Suspension device 17a Suspension Member 18 Reinforcement material 19 Height adjuster 19a Slide member 20 Screw shaft for slide 20a Slide bearing part 21 Bearing part 22 Bracket 23 Bracket 24 Lift frame 25 Lift frame connecting bracket 26 Pipe support roller 26a Support recess 27 Pin 28 Roller receiving bracket 29 Guide frame 30 Guide roller 31 Screw shaft 32 Screw jack coupling bracket 33 Screw jack 33a Screw jack turning shaft 33b Drive gear (worm wheel) 34 Screw shaft 3 Chain block 35a Chain sprocket 35b Chain 36 Travel rail table 37 Travel rail 38 Transport roller 39 Pipe fixing bracket 40 Elevating gantry 42 Support frame 43 Support shaft 44 Bearing member 45 Nut member 46 Upper horizontal frame 47 Support vertical frame 48 Roller vertical frame Reference Signs List 50 Support shaft 51 Pin hole 52 Pin hole 53 Mounting plate 54 Support guide member 55 Jack base 56 Arm plate 57 Nut member 58 Roller receiving frame 59 Holding device 60 Nut member 61 Holding jig 62 Brake device 63 Suspension wire 64 Slide guide shaft 65 handle

Continued on the front page (72) Inventor Tsunehiko Hayashi 2-6-3 Otemachi, Chiyoda-ku, Tokyo Inside Nippon Steel Corporation (72) Inventor Yoshiyuki Mizushima 2-6-3, Otemachi, Chiyoda-ku, Tokyo New Japan (72) Inventor Naoyuki Oishi 2-6-3 Otemachi, Chiyoda-ku, Tokyo F-term in Nippon Steel Corporation (reference) 3F004 AA08 AB19 AE01 AF06 EA05 LA05 3F202 AA04 AA05 3F333 AA01 AA20 AB20 AE21 AE38 BA01 BD04 BD05 BF03 BG01 CA06

Claims (2)

[Claims] A pipe loaded on a truck, which receives a pipe loaded from a truck from a carrier, conveys the pipe to a pipe burying position across a digging groove, and suspends and installs the pipe in a groove. A gate-type frame with wheels that is slightly wider, a left-right connecting member attached to the gate-type frame so as to be able to ascend and descend, and disposed between the groove width directions, and a front-rear direction connecting member fixed to the left-right connecting member. A lift frame provided, a pipe support roller disposed so as to be freely connectable to the lift frame in the groove width direction, and rotatably disposed on a horizontal plane with one end of the roller as a support shaft, and the left and right connecting members. A pipe holding jig for fixing a pipe placed on the pipe supporting roller, and a pipe hanging suspension attached to a portal frame, wherein when the pipe is suspended in an excavation groove, the support is provided. Pivot with axis as fulcrum Pipe burying gantry trolley, characterized in that the retractable constructed by horizontal pivoting to a position which is not a roller to failure. 2. The method according to claim 1, wherein a running interval of the portal frame with wheels is wider than a general width of the excavation trench and narrower than a width of the meeting place, and a rail for passing the wheels through the meeting place is provided. The portal trolley for burying pipes according to claim 1.