KR0158090B1 - The hydraulic hose rolling device for the erector in the shield machine - Google Patents

Abstract

It can also be installed in small diameter seal excavators. The hose rail 38 and the swivel joint portion 40 of the winding device 36 are attached to the main surface of the screw conveyor 28 of the seal excavator 10. A force is applied to the hose rail 38 in a direction in which the hose bundle 54 is always wound by a spiral winding spring provided between the swivel joint portions 40. The hose bundle 54 which bundles the secondary hydraulic hose drawn out from the hose rail 38 is installed along the turning ring 42 via the guide rollers 78, 72 and 74 at the front end side thereof. It is led to one hose guide part 44 and connected to the swivel joint provided in the turning ring 42.

Description

Hydraulic Hose Winding Device for Director of Sealed Excavator

1 is a cross-sectional view of a hydraulic hose winding device for a director of a sealed excavator according to an embodiment of the present invention.

2 is a cross-sectional view showing in detail the hose rail and the swivel joint according to the embodiment.

3 is a cross-sectional view showing in detail the hose guide unit according to the embodiment.

4 is a plan view and a front view of a hose guide unit according to the embodiment.

5 is a detailed explanatory diagram of the hose bundle according to the embodiment.

6 is a cross-sectional view of another embodiment.

* Explanation of symbols for main parts of the drawings

10: seal excavator 12: shield body

28: screw conveyor 36: winding device

38: hose rail 40: swivel joint

42: turning ring 44: hose guide portion

48: primary side hydraulic hose 50: director

54: hose bundle 56: retaining ring

58: rotation light 70: rotational force generating means (waist spring)

72, 74, 78: guide roller 90: sludge feed pipe

92: sludge discharge pipe.

The present invention relates to a winding device for a segment assembling director hydraulic hose for assembling a segment in a particularly excavated tunnel with respect to a shield excavator.

The segment assembly director in the seal excavator is generally attached to a swing ring provided on the shield main body and pivotally moves in the circumferential direction of the shield main body integrally with the swing ring. Moreover, a plurality of hydraulic cylinders are provided in the director, and the cylinder pieces are suspended and positioned by operating these cylinders. For this reason, the some hydraulic hose which connected the one end to the hydraulic source is connected to the director.

Conventional hydraulic hydraulic hoses for directors have a longer length between the shield body and the director in consideration of the pivoting of the director in the circumferential direction of the shield body, and the screw conveyor and the sludge delivery pipe in the shield body ( In the large-diameter sealed excavator, it was in a drooping state to enclose an intermediate deck column. But. In this way, if the hydraulic hose is left in a drooping state, the hose is not only twisted or caught and damaged, but also there is a problem such as interrupting work.

Therefore, a winding device for a hose is proposed which winds or feeds a hydraulic hose as the swing ring turns. (Publication No. 62-1359) The winding device described in this publication is a rotatably installed rail holding a swivel joint between the swing ring and the seal body. The collector is guided to prevent the hose from falling into the shield body.

By the way, as described in Unexamined-Japanese-Patent No. 62-1359, since the hose rail of a hydraulic hose is arrange | positioned between a turning ring and a shield main body, a hose rail must be installed between a shield jockey and a shield jockey. Therefore, in small and medium diameter excavators, there is no space for rail mounting, and the hydraulic hose winding device cannot be actually mounted.

For this reason, in small and medium-sealed excavators, the hose is ultimately lowered (stretched), and the hose is often caught by a central structure or the like and damaged when the director is turned.

Moreover, also in the case of a large diameter seal excavator, the work space around which a rail was installed is limited, and workability of a maintenance is not good.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and an object thereof is to provide a hydraulic hose winding device for a director of a shield excavator, which can be installed in a small diameter shield excavator.

In order to achieve the above object, the hydraulic hose winding device for the director of the seal excavator according to the present invention is a hydraulic hose for supplying hydraulic pressure to the director mounted on the swing ring rotatably installed in the shield body. In the hydraulic hose winding device, the director of the take-off seal excavator includes a screw conveyor or a screw conveyor installed around the seal body or a sludge delivery pipe and the screw conveyor or the above-mentioned. A hose rail rotatably attached to the sludge delivery pipe and having one end wound or protruding from the hydraulic hose connected to the swivel joint, and a rotation force generating means for rotating the hose rail, and the turning ring. Therefore, it is installed and holds the hose guide head which guides the other end side of the said hydraulic hose to the said director. It has a structure.

The rotational force generating means can use the spiral winding which one end was connected to the said hose single-axis rotation part, and the other end was connected to the fixed shaft of the swivel joint. Moreover, what is necessary is just to bind a hydraulic hose integrally with a cable.

According to the present invention configured as described above, the hose rail which winds up or protrudes the hydraulic hose is attached to the screw conveyor or the sludge delivery pipe at the center of the seal body, so that the installation space can be sufficiently occupied. The hydraulic excavator winding device can be installed in the seal excavator of the seal excavator, and the damage can be prevented by hanging the hose.

And since a hose rail is attached around a screw conveyor or sludge delivery pipe, it becomes possible to use a relatively large hose rail. In addition, since the hose rail is provided near the center of the seal body, the work space around the rail can be made large, and the maintenance work of the hose rail can be easily performed.

Since the automatic winding action occurs by always trying to be pulled toward the hose rail by the rotational force generating means of the hose rail, it eliminates the drooping state (stretching state) of the hose and the cable and prevents it from hanging or breaking. In addition, the safety of the worker can be improved. Since the hydraulic hose and the cable are integrally bound, they can be bundled and wound in one, and the hose and the cable can be stored in an orderly manner.

EXAMPLE

EMBODIMENT OF THE INVENTION Preferred embodiment of the hydraulic hose winding apparatus for the director of the seal excavator which concerns on this invention is described in detail according to an accompanying drawing.

1 is a cross-sectional view of a hydraulic hose winding device for the director of a shield excavator according to an embodiment of the present invention, and is an example applied to the earth pressure bending shield drilling.

The present invention is also applicable to earth pressure integral seal excavators.

In FIG. 1, the shield excavator 10 has a cylindrical, forced shield body 12. This shield main body 12 consists of the front shield 14 and the rear shield 16, and both are bendably connected. A plurality of articulate jockeys 18 are arranged between the front shield 14 and the back shield 16 in the circumferential direction of the main body, and the stroke of each of the articulate jockeys 18 is provided. Curved excavation is enabled by controlling the amount.

At the distal end of the front shield 14, a cutter head 20 for excavating Jisan is provided. The cutter head support 22 fastened to the cutter head 20 is fastened to the inner ring of the bearing 15 assembled in the front seals 14 so that rotation is freely attached thereto. In addition, a hydraulic motor 26 is provided behind the bearing combination portion of the front shield 14, and the power of the motor is transmitted to the cutter head supporter 22 via a gear device, and the cutter head. (29) can be rotated. In addition, the distal end portion of the screw conveyor 28 is fixed to the partition wall 24. In this screw conveyor 28, the intake opening 33 of the earth and sand is opened at the front side of the partition wall 24, and the excavated earth and sand is inserted into the cutter head 20 to be conveyed backward. And the screw conveyor 28 is arrange | positioned inclined so that a rear side may become high, and the center part of the longitudinal direction is known by the bracket 34 provided in the back shield 16. As shown in FIG.

On the rear side of the bracket 34, a winding device 36 for a hydraulic hose is provided. The winding device 36 includes a hose rail 38 rotatably attached to the screw conveyor 28, a swivel joint 40 fixed to the screw conveyor 28, and a pivot ring 42. The installed hose guide part 44 is a main component. The pivot ring 42 is rotatably supported by a plurality of guide rollers 45 provided in the circumferential direction of the inner surface of the shield body 12, and the shield body 12 is supported by a swing motor (not shown). The center of gravity of the pivot is to be able to turn in either direction. The primary hydraulic hose 48 connected to the hydraulic pump 46 (not shown) is connected to the swivel joint portion 40. In addition, the bundled hose bundle 54 is wound around the hose rail 38.

As will be described later, the hose bundle 54 integrates a plurality of secondary shaft hydraulic hoses and cables that supply hydraulic pressure to the director 50 mounted on the swing ring 42 to assemble the segment 52.

As shown in FIG. 2, the swivel joint portion 40 is attached to the outer peripheral portion of the ring-shaped block 60 fixed to the circumferential surface of the screw conveyor 28, and has a fixing ring 56 and the fixing ring. The rotating body 58 which becomes the rail side rotation part arrange | positioned inside the 56 is provided. The fixing ring 56 is fixed to the rear shield 16 via the bracket 62, and a circumferential groove 64 is formed on the inner circumferential surface thereof. In addition, the rotating body 58 is to be integrally rotated with the hose rail 38, the peripheral groove 68 is formed on the outer peripheral surface at a position corresponding to the peripheral groove 64 of the fixing ring 56 A plurality of flow paths 68 communicating with the plurality of hose connecting ports 67 and the circumferential grooves 66 provided in the hose rail 38 are formed in the axial direction.

A large diameter hole is formed in the rear end side inner circumference of the rotating body 58, and a spiral winding 70, which is a rotational force generating means, is provided in the large diameter hole.

The spiral winding spring (swirl spring) 70 is attached to the cover 71, one end of which is fixed to the fixing ring 56, the other end of which is attached to the rotating body 58, and interposed between the rotating body 56. Thus, the force rail 38 is applied to the winding direction of the hose bundle 54 at all times.

On the other hand, as shown in FIG. 3, the hose guide part 44 is provided over the front periphery of the front end side of the shield main body 12 of the turning ring 42. As shown in FIG. The hose guide portion 44 is a flange for preventing the drop of the hose bundle 54 on the side opposite to the turning ring 42 while the guide surface of the hose bundle 54 is inward of the outer circumferential end of the swing ring 42. (73) is provided.

A pair of horizontal guide rollers 72 and 74 are rotatably provided at the top of the hose guide portion 44 via a bracket or the like not shown in the back seal 16 so as to rotate freely. These guide rollers 72 and 74 convert the hose bundle 54 drawn out from the lower hose rail 38 in the direction along the hose guide portion 44, as shown in FIG. As described above, the rotary shaft is configured to pass through the center of rotation of the turning ring 42 and the hose bundle 54 can pass between the guide rollers 72 and 74.

Moreover, the swivel joint 76 for connecting the hydraulic hose containing the hose bundle 54 is provided in the swivel ring 42, and the director (the swivel joint 76) is provided through the director ( Supplying and discharging of hydraulic oil is performed to each cylinder of 50). Guide rollers 78 are provided on the side opposite to the turning rings 42 of the guide rollers 72 and 74. The guide roller 78 guides the hose bundle 54 drawn out from the hose rail 38 between the guide rollers 72 and 74, and has a circumferential surface between the guide rollers 72 and 74. At the same time, it faces in the direction of the hose bundle take-out part of the hose rail 38. And, in the case of the embodiment, the hose bundle 54 arranges four secondary hydraulic hoses 82 around the cable 80, as shown in FIG. 5A (1), for example, The heat shrinkability is covered by the hissing tube 84, and the hose 82 and the cable 80 are bound together and integrated. However, as shown in FIG. 5B (2), the hose bundle 54 may bind two or more hydraulic hoses 82 and the cable 80 to be integrated.

Effects of the embodiment configured as described above are as follows.

Now, it is assumed that the swivel joint 76 provided in the turning ring 42 is located at the point A of FIG. 4A (2). And when the turning ring 42 turns to the counterclockwise direction of FIG. 4B (2) like arrow 86, the hose rail 38 winds up the hose bundle 54 by the spiral winding 70. As shown in FIG. Since a force is applied in the direction, as the swivel joint 76 approaches the guide roller 74, the hose bundle 54 is guided to the guide rollers 74 and 78 to be wound around the hose rail 38. do. Then, when the swivel joint 76 pivots again in the counterclockwise direction after passing through the vertex, that is, the position between the guide rollers 72 and 74, the hose bundle 54 is drawn out of the hose rail 38 and guided. Guide roller 72 is guided from roller 74 and wound around hose guide 44. When the turning ring 42 turns clockwise in FIG. 4B (2), the above operation is reversed.

As described above, the winding device of the embodiment is attached to the screw conveyor 28 provided at the center of the seal body 12 so that the hose rail 38 can be attached to a seal excavator of small diameter to large diameter. Therefore, the hydraulic hose can be eliminated (stretched), and excessive loads such as bending, torsion, and tension do not act on the hydraulic hose, so that damage to the hydraulic hose can be prevented and used safely. Hydraulic hoses do not interfere with work. In addition, by providing the hose rail 38 near the center of the seal body 12, the peripheral space of the rail can be large, and the workability of maintenance can be improved.

In addition, since the hose rail 38 is attached to the screw conveyor 28, it becomes possible to use the hose rail 38 with a large diameter, and the large diameter which bundled and integrated the hydraulic hose 82 and the cable was integrated. The hose bundle 54 can be wound up.

In addition, in the embodiment, since the hydraulic hose (hose bundle 54) is wound up and protrudes on the hose rail 38 without hanging down, the hose guide portion in which the excess length of the hose is provided in the turning ring 42 is provided. (44) It may be set as the length (200 degrees) of the half-length steel of length, and can shorten a length significantly.

In the embodiment, since the hydraulic hose 82 and the cable 80 are bound together by the hissing tube 84 to be integrated, the hose 82 and the cable 80 can be wound neatly. 6 shows another embodiment, which is applied to a sludge pressurized seal excavator. In addition, the part corresponding to the part demonstrated in the above-mentioned embodiment is attached | subjected the same code | symbol, and abbreviate | omits description.

In the shield excavator 10 shown in FIG. 6, the sludge transfer pipe 90 and the sludge discharge pipe 92 are arrange | positioned in the center part of the back shield 16. As shown in FIG. And the hose rail 38 and the swivel joint part 40 of the winding-up apparatus 36 comprised similarly to what was shown to the said Example about the sludge conveyance pipe 90 and the sludge discharge pipe 92 are Attached. Also in this embodiment, the same effects as in the above embodiment can be obtained.

Incidentally, in the above embodiment, the case where the rotational force generating means is the vortex winding spring 70 has been described, but the rotational force generating means may use a motor or the like.

In the above-described embodiment, the case where the swivel joint 76 is provided in the swing ring 42 has been described. Alternatively, a normal relational number may be used in place of the swivel joint 76.

In the above embodiment, the case where the hydraulic hoses 82 and the cable 80 are integrated has been described, but these may not be integrated.

In addition, in the above-described embodiment, the case where the body is integrated with the hissing tube 84 has been described, but the body may be integrated with a wire, a rope, a tape, or the like.

As described above, according to the present invention, it is possible to secure the installation space of the hose rail by attaching the hose rail which winds up or protrudes the hydraulic hose around the screw conveyor or sludge discharge pipe in the center of the seal body. It is possible to provide a hydraulic hose winding device from the small diameter to the large diameter seal excavation, to eliminate the drooping state of the hose, and to prevent the damage by hanging the hose.

Claims (3)

Hydraulic hose winding for the director of the seal excavator 10 which winds a hydraulic hose for supplying pressure oil to the ejector 50 mounted on the swing ring 42 rotatably installed in the seal body 12. In the apparatus, rotation is freely attached around the screw conveyor 28 or the sludge delivery pipes 90 and 92 disposed and installed near the center of the seal body 12, and one end of the seal body 12 is attached. A hose rail 38 for winding or protruding the above-mentioned hydraulic hose connected to the bell joint 40, a rotation force generating means 70 for rotating the hose rail 38, and the pivot ring 42 described above. And a hose guide portion (44) which is installed and guides the other side of the hydraulic hose to the director (50). The vortex winding according to claim 1, wherein the rotation force generating means (70) has one end connected to the hose rail (38) side rotating part and the other end connected to the fixed shaft of the swivel joint (40). Vortex winding) hydraulic hose winding device for the director of the seal excavator, characterized in that the spring The hydraulic hose winding device for the director of a seal excavator according to claim 1 or 2, wherein said hydraulic hose (48) is integrally bound with a cable.