JP2017020603A - Fluid material shipping facility and fluid material shipping method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable material shipped in a lower work space of a housing to be positively and smoothly pulled up and transported into an upper work space by efficiently applying a pulling-up force to a transferring support shaft and further constitute facility for pulling up and transportation in compact form.SOLUTION: There is provided a pulling-up and transferring device for applying a pulling-up force to a transferring support shaft 3 protruded from a housing H to an outside part and pulling up an object material E to be transferred in a lower work space S1 into an upper work space S2, the pulling-up and transferring device is provided with: reciprocating motion type pulling-up means R1 that can be operated by a divided stroke corresponding to one of several lengths of total pulling-up length of the transferring support shaft 3; connecting means R2 for applying the pulling-up force of pulling-up means R1 from a shaft axis direction in respect to the transferring support shaft 3; and shaft holding means R3 for receiving, between the transferring support shaft 3 and a housing H, load of the transferring support 3 including the object transferred material E, and holding the transferring support shaft 3 at its pull-up position.SELECTED DRAWING: Figure 6

Description

  The present invention provides a lower working space in a housing in which equipment to be carried out such as a cutting machine after cutting work and a valve body of a water control valve, which are present in a work target area of an existing pipe in the housing, are partitioned by a work opening / closing valve. The present invention relates to a fluid equipment carry-out facility and a fluid equipment carry-out method for lifting and transporting from a work space to an upper work space.

As equipment for carrying out fluid equipment, for example, in a facility where a water control valve such as a butterfly valve or a gate valve is installed in a continuous water state in a water pipe that is an example of an existing pipe, as shown in Patent Document 1, a water pipe valve is installed. In the planned location, a cutting machine for cutting the pipe part corresponding to the installation length of the water control valve in a ring-cut state, and both connection ports of the water control valve inserted in the pipe cutting and removal part of the water pipe and Attach a joint ring to connect both remaining pipe parts of water pipes facing each other in the pipe axis direction.
Next, the work target area including the cutting machine and the double joint is sealed with a housing provided with a work opening / closing valve, and the conveyance support shaft connected to the cutting machine is projected outside from the upper part of the housing. This conveyance support shaft is configured in a double shaft structure, and its inner shaft is used as a drive shaft of a cutting machine.
The inner shaft of the conveyance support shaft is connected to a drive source such as an electric motor to drive the cutting machine, and the valve installation planned portion of the water pipe is cut in a ring cut state. The cutting machine that holds the cut / removed tube after the cutting is lifted from the lower work space in the housing to the upper work space, and finally carried out of the housing (fluid target equipment) It becomes.
Conventionally, a suspension wire attached to a suspension hook of a mobile crane or the like that is a lifting and transporting device is attached to the projecting shaft portion of the transport support shaft that projects outward from the top of the housing, A lifting force is applied to the projecting shaft portion of the transport support shaft by winding, and the unloading target equipment located in the lower work space of the housing is lifted and transported into the upper work space, and further transported out of the housing.

JP 2010-196762 A

The transport support shaft used in this type of fluid equipment unloading equipment projects through the upper part of the housing through a part of the lower working space and the upper working space from the cutting machine installed at the valve installation planned location of the existing pipe. Since this length is necessary, the protruding shaft portion of the long conveying support shaft greatly protrudes from the upper portion of the housing as the cutter is lifted and conveyed.
Therefore, as in the prior art, a suspension wire attached to a suspension hook of a mobile crane or the like that is a lifting and transporting device is attached to the projecting shaft portion of the transport support shaft that projects outward from the upper part of the housing. In the method of lifting and transporting the equipment to be unloaded located in the lower work space of the housing by lifting the crane into the upper work space, a structure such as a bridge is located above the housing and moved above the housing. There is an inconvenience that cannot be carried out at a construction site where a sufficient lifting work space for suspending transportation by a crane or the like cannot be secured.

  In addition, in a construction site where the conveyance support shaft and the housing connected to the cutting machine are arranged in an inclined posture with respect to the vertical direction under various conditions, the inclined conveyance support shaft is pulled up by a mobile crane or the like. At this time, there is a disadvantage that a twist occurs between the shaft support portion of the housing and the transport support shaft, and the transport support shaft cannot be pulled up.

  In view of this situation, the main problem of the present invention is that when it is not possible to secure a sufficient lifting work space at least above the entire length of the transport support shaft above the housing, or when the transport support shaft and the housing are in the vertical direction. Even if it is tilted, it is possible to efficiently apply a lifting force to the transport support shaft in a state of no wobbling to ensure that the equipment to be carried out in the lower work space of the housing is in the upper work space, It is an object to provide a fluid equipment carrying-out facility and a fluid equipment carrying-out method that can be smoothly pulled up and conveyed, and that the equipment for lifting and conveying can be configured compactly.

According to a first characteristic configuration of the present invention, a work target area of an existing pipe is sealed with a housing having a work on / off valve capable of partitioning an internal space into a lower work space and an upper work space, A transport support shaft connected to the unloading target equipment existing in the work target area of the existing pipe in the side work space is projected outside from the upper part of the housing, and a lifting force is applied to the projecting shaft portion of the transport support shaft. A fluid equipment unloading facility provided with a lifting transport device for lifting and transporting the unloading target equipment in the lower work space into the upper work space,
In the lifting and conveying apparatus, a reciprocating lifting means that can be installed in the housing or the fixed portion and that can be operated with a divided stroke corresponding to a plurality of the total lifting length of the conveying support shaft;
The lifting means and the connected portion provided on the protruding shaft portion of the transport support shaft are detachably connected, and the lifting force of the lifting means is applied to the protruding shaft portion of the transport support shaft from the axial direction. A connecting means to be provided;
Between the projecting shaft portion of the transport support shaft and the housing or the fixed portion, there is a shaft holding means for receiving the load of the transport support shaft including the unloading target equipment and holding the transport support shaft in the lifted position. It is in the point provided.

According to the said structure, the raising means installed in the housing or the fixing | fixed part and the to-be-connected part provided in the protrusion shaft part of the conveyance support shaft which protrudes outside from the upper part of a housing are connected by a connection means. . With the forward operation of the lifting means in this state, the pulling force corresponding to a divided stroke corresponding to a plurality of one-third of the total lifting length of the transport support shaft with respect to the connected portion of the protruding shaft portion of the transport support shaft Can be reliably applied from the axial direction of the conveyance support shaft.
Therefore, even when the transport support shaft and the housing are inclined with respect to the vertical direction, no twisting occurs between the shaft support portion of the housing and the transport support shaft, and the transport support shaft can be smoothly moved. It can be lifted and conveyed.
The transport support shaft pulled up by the lifting means is held in the lifted position by the shaft holding means that receives the load of the transport support shaft including the unloading target equipment.
By repeating the transport support shaft lifting operation process in units of divided strokes and the transport support shaft position holding operation process at the lifting position, the equipment to be carried out in the lower work space of the housing is placed in the upper work space. It can be reliably pulled up and transported.
Therefore, even when it is not possible to secure a sufficient lifting work space at least above the entire length of the transport support shaft above the housing, or even when the transport support shaft and the housing are inclined with respect to the vertical direction, It is possible to efficiently apply a lifting force to the transport support shaft in a state where there is no twist, and to reliably and smoothly transport the equipment to be carried out in the lower work space into the upper work space.
In addition, since the operating stroke of the lifting means is a divided stroke corresponding to a plurality of the total lifting length of the transport support shaft, the lifting means itself can be reduced in size, and the equipment to be transported can be lifted and transported. Equipment can be configured compactly.

  According to a second characteristic configuration of the present invention, in the fluid equipment unloading facility having the first characteristic configuration described above, the connecting means is connected to the reciprocating operation of the lifting means in the axial direction of the transport support shaft. And a lifting force applying portion that can be engaged and disengaged from the axial direction of the transport support shaft with respect to the connected portion of the transport support shaft.

According to the above configuration, the lifting force applying portion provided in the connecting means is engaged with the connected portion of the transport support shaft from the axial diameter direction, so that the transport support shaft can be moved in the forward operation of the lifting means. A pulling force corresponding to a divided stroke corresponding to a plurality of the total pulling length can be reliably applied to the transport support shaft from the axial direction.
Further, after the forward movement of the lifting means is completed, the lifting means is smoothly moved by moving the lifting force applying portion of the connecting means away from the connected portion of the transport support shaft to the disengagement side along the axial diameter direction. It is possible to prepare for the next pulling process by performing a return operation.
Therefore, when connecting the lifting means and the connected portion provided on the protruding shaft portion of the conveyance support shaft by the connection means, the connection portion of the conveyance support shaft is connected to the connection portion of the conveyance support shaft every time the conveyance support shaft is lifted in divided stroke units. On the other hand, the working efficiency can be improved as compared with a detachable structure in which the connecting means is directly detachable with a bolt or the like.

  According to a third characteristic configuration of the present invention, in the fluid equipment carrying-out facility having the second characteristic configuration described above, a pair of lifting bodies connected to a pair of lifting parts of the lifting means is provided in the lifting force applying part. And a lifting force application member that is detachably mounted in the axial direction of the transport support shaft over both the lifting and lowering bodies.

According to the above configuration, the pair of lifting bodies connected to the pair of lifting portions of the lifting means and the lifting force applying member laid on the pair of lifting bodies provide the lifting support force to the connected portion of the transport support shaft. Can be stably and reliably applied from the axial direction.
In addition, since the weight of the lifting force applying member that can be freely engaged with and disengaged from the connected portion of the transport support shaft is supported by the pair of lifting bodies connected to the pair of lifting portions of the lifting means, the lifting force is applied. The member can be easily engaged and disengaged with little effort.

  According to a fourth characteristic configuration of the present invention, in the fluid equipment carrying-out facility having any one of the first to third characteristic configurations described above, the shaft holding means is pulled out of the housing by the lifting means. A cylindrical body of a split structure that can be mounted from the axial radial direction to the raised portion of the protruding shaft portion of the transport support shaft, and load receiving portions are formed at both ends of the cylindrical body in the axial direction of the cylinder It is in the point comprised from the some load support cylinder which has.

According to the above configuration, one or a plurality of load supporting cylinders having a divided structure having load receiving portions at both ends with respect to the lifting portion of the protruding shaft portion of the conveyance supporting shaft lifted out of the housing by the lifting means. Is mounted from the axial direction of the transport support shaft by the load support cylinder in the exterior state of the transport support shaft between the protruding shaft portion side of the transport support shaft and the housing or the fixed portion side. Can be received from the axial direction of the transport support shaft.
Therefore, it is possible to reliably receive the load of the transport support shaft including the unloading target equipment as compared with the case where the transport support shaft on which the load of the unloading target equipment is applied is clamped and fixed from the axial direction.

  According to a fifth characteristic configuration of the present invention, in the fluid equipment carrying-out facility having the fourth characteristic configuration described above, the connected portion of the transport support shaft is detachably attached to the upper end portion of the transport support shaft. 1 lifting jig and a second lifting jig that is detachably attached to the load support cylinder mounted on the lifting portion of the protruding shaft portion of the transport support shaft.

According to the above configuration, in the first lifting step of the transport support shaft, the first lifting jig attached to the upper end portion of the transport support shaft is used as the connected portion of the transport support shaft. A sufficient space for installing the lifting means can be secured between the connected portion of the transport support shaft and the housing or the fixed portion in the state in which the amount of protrusion of the first shaft is the smallest. The connection structure with the means can be simplified.
In addition, in the second and subsequent lifting steps of the transport support shaft, the load support is performed using a sturdy load support cylinder mounted on the lifting portion of the protruding shaft portion of the transport support shaft lifted out of the housing. The second lifting jig can be easily and reliably attached to the cylinder.

A sixth characteristic configuration according to the present invention is a sealing work process in which a work target area of an existing pipe is sealed with a housing having a work on / off valve capable of partitioning an internal space into a lower work space and an upper work space. And a projecting shaft portion of a transport support shaft that is connected to an unloading target equipment existing in a work target area of the existing pipe in the lower work space of the housing and projects outside through the upper portion of the housing. A fluid equipment carrying-out method comprising a carrying-out work step of lifting and carrying the equipment to be carried out in the lower work space into the upper work space by a lifting movement. , (B) is executed repeatedly.
(A) Split lifting in which the protruding shaft portion of the transport support shaft that protrudes from the upper part of the housing is lifted by a reciprocating lifting device with a split stroke corresponding to a plurality of the total lift length of the transport support shaft. Process.
(B) A position holding step of holding the transport support shaft pulled up by the lifting device in a lifted position by a shaft holding means for receiving a load of the transport support shaft including the unloading target equipment.

According to the above configuration, as in the first characteristic configuration described above, when a sufficient lifting work space that is at least the total length of the transport support shaft cannot be secured above the housing, or the transport support shaft and the housing are Even when it is tilted with respect to the vertical direction, the lifting force is efficiently applied to the transport support shaft in a state where it is not twisted, and the equipment to be carried out in the lower work space is placed in the upper work space. Can be reliably and smoothly lifted and conveyed.
In addition, since the operating stroke of the lifting means is a divided stroke corresponding to a plurality of the total lifting length of the transport support shaft, the lifting means itself can be reduced in size, and the equipment to be transported can be lifted and transported. Equipment can be configured compactly.

  According to a seventh characteristic configuration of the present invention, in the fluid equipment carrying-out method having the sixth characteristic configuration, the position holding step by the shaft holding means is performed on the transport support shaft lifted out of the housing by the lifting means. It is a step of mounting one or more of the load supporting cylinders having a split structure provided with connecting flanges serving as load receiving portions at both ends with respect to the raised portion of the protruding shaft portion from the axial direction of the transport supporting shaft. It is in.

  According to the above configuration, the load supporting cylinder having the divided structure is efficiently and easily attached to the lifting portion of the protruding shaft portion of the transport support shaft lifted out of the housing by the lifting means from the axial direction of the transport support shaft. be able to. In the mounted state, the load supporting cylinder is externally mounted on the conveying support shaft, and the adjacent load supporting cylinders can be connected to each other by a connecting flange serving as a load receiving portion. Can be reliably received in a stable state.

  According to an eighth characteristic configuration of the present invention, in the fluid equipment carrying-out method having the seventh characteristic configuration, the division stroke in the division pulling-up step is the lifting of the protruding shaft portion of the conveyance support shaft in the next position holding step. It is in the point set larger than the mounting height of the said load support cylinder with which the site | part is mounted | worn.

According to the above configuration, since the length of the lifting portion of the protruding shaft portion of the transport support shaft lifted by the lifting means is larger than the mounting height of the load support cylinder, the spatial height that appears due to the excessive lifting. With a sufficient margin, the mounting operation of the load supporting cylinder from the axial diameter direction with respect to the raised portion of the protruding shaft portion can be performed efficiently and easily.
Nevertheless, by performing the backward operation of the lifting means after the load supporting cylinder is mounted, the load of the transport supporting shaft including the unloading target equipment can be reliably received by the load supporting cylinder that is in a stable state.

Sectional drawing of the whole which installed the raising conveyance apparatus of the fluid equipment carrying-out installation of this invention in the housing Enlarged cross-sectional view of a lifting and conveying apparatus equipped with a first lifting jig The perspective view of the raising conveyance apparatus equipped with the 1st raising jig Plan view of a lifting and conveying apparatus equipped with a first lifting jig Enlarged sectional view of the pulling and conveying device during the first pulling Cross section of the whole with the second lifting jig Enlarged cross-sectional view of a lifting and conveying device equipped with a second lifting jig The exploded perspective view of the principal part of the raising conveyance device equipped with the 2nd raising jig The top view in the engagement position of the raising conveyance apparatus equipped with the 2nd raising jig Overall cross-sectional view during the second pull-up Top view of the lifting and conveying device when the second lifting jig is disengaged Cross-sectional view of the entire lifting and conveying apparatus when the second lifting jig is changed to the lower lifting start position Overall cross-sectional view during the third pull-up Enlarged sectional view of the lifting and conveying apparatus when the second lifting jig is changed to the lower lifting start position Sectional view of the main part during the 4th pull-up Enlarged cross-sectional view of the lifting and conveying device during the fourth lifting Sectional view of the main part when removing the lifting and conveying device Sectional view of the main part when the transport support shaft is suspended and removed Schematic cross-sectional view showing the removal order of the housing top cover and equipment to be removed

[First Embodiment]
FIG. 1 shows a part of a valve installation facility for installing a water control valve such as a butterfly valve or a gate valve in an undisturbed water state in an underground pipe 1 that is an example of an existing pipe. Since this type of valve installation equipment has been proposed in various structures and has been practiced at many construction sites, the outline of the valve installation equipment related to the fluid equipment carrying-out equipment and the fluid equipment carrying-out method of the present invention is as follows. Is briefly explained.

At the location where the pipe of the water pipe 1 is scheduled to be installed, it is inserted into the cutting machine CM for cutting the pipe portion corresponding to the installation length of the water control valve in a ring-cut state and the pipe cutting and removal site of the water pipe 1 after cutting. A joint ring (not shown) for connecting both the connection ports of the water control valve and the both cut remaining pipe portions 1A (see FIG. 6) of the water pipe 1 facing each other across the pipe cut and removal portion in a watertight state. Are attached).
The work target area including the cutting machine CM and the double joint is sealed in a watertight manner by a housing H having a work opening / closing valve V, and a transport support shaft 3 connected to the drive unit 2 of the cutting machine CM is , Protruding from the top of the housing H to the outside. The conveyance support shaft 3 is constituted by an outer shaft having an inner / outer double shaft structure, and the inner shaft is constituted by a drive shaft 4 (see FIG. 2) which is connected to the input shaft of the drive unit 2 of the cutting machine CM. .
Then, the drive shaft 4 is connected to an electric motor (not shown) which is an example of a drive source to drive the cutting machine CM, and the valve installation scheduled portion of the water pipe 1 is cut in a ring-cut state.

Conventionally, there are various types of cutting machines CM. In this embodiment, a specific position of the rotation path while driving and rotating the cutting tool along the pipe circumferential direction (circumferential direction) at the planned cutting position that becomes the cut end face of both cut remaining pipe portions 1A of the water pipe 1 The cutting machine CM is used to cut the pipe portion to be cut and removed of the water pipe 1 in a circular shape by feeding a predetermined amount inward in the radial direction, and is shown in a simplified form in FIG. Has been.
Moreover, FIG. 1 has shown the state immediately after the cutting | disconnection operation | work where the valve installation planned location of the water pipe 1 was cut | disconnected by the cutting machine CM in the ring cutting state.

In this embodiment, the cutting machine CM that holds the cut and removed pipe portion 1B after the cutting is lifted from the lower work space S1 in the housing H to the upper work space S2, and finally the housing H It becomes the carrying-out target equipment E which needs to be carried out outside.
Therefore, a lifting force is applied to the upper cover 14 of the housing H of the valve installation facility to the protruding shaft portion 3A of the transport support shaft 3, so that the equipment E to be carried out in the lower work space S1 of the housing H is placed in the upper work space S2. By installing the lifting and conveying apparatus R that lifts and conveys it inside, the fluid equipment carrying-out facility of the present invention using the housing H of the valve-installing facility is configured.

Next, the housing H will be described in detail. As shown in FIG. 1, the lower half of the work target area including the cutting machine CM and the double joints in the water pipe 1 located in the work pit constructed by excavation. The upper connection flange 10a of the lower cover 10 covering the side and the lower connection flange 11a of the lower intermediate cover 11 covering the upper half side of the work target area are fixedly connected in a watertight state.
A lower connection flange 12a of the valve case 12 of the work on-off valve V is fixedly connected to the upper flange portion 11b of the lower intermediate cover 11 in a watertight state.
Further, the lower connection flange 13a of the upper intermediate cover 13 that forms the upper work space S2 in which the cutting machine CM can be stored is fixedly connected to the upper connection flange 12b of the valve case 12 of the work opening / closing valve V in a watertight state. ing.
A connection flange 14a of the upper cover 14 that closes the upper opening of the upper intermediate cover 13 is fixedly connected to the upper connection flange 13b of the upper intermediate cover 13 so as to be detachable in a watertight state.

  Further, in the inner surface of the housing H, the left and right inner surface portions that are opposite to each other in the horizontal direction passing through the pipe axis of the water pipe 1 are substantially vertically raised and lowered guides provided on both the left and right sides of the cutting machine CM. An elevating guide rail 16 that slides and guides the portion 15 along the vertical direction in the engaged state is provided.

Further, as shown in FIGS. 1 and 2, the upper end of the annular opening frame 20 provided in a state of vertically passing through the center portion of the upper cover 14 of the housing H passes through the pipe axis of the water pipe 1. Sliding with an opening 21a that allows horizontal movement of the transport support shaft 3 over a movable region from the vertical line to the center of gravity position variation range (hanging position adjusting operation range) of the hanging target device such as the unloading target device E A guide plate 21 is fixed.
A plate-like slide plate 22 that slides along the upper surface of the slide guide plate 21 while maintaining the sealed state of the housing H is provided on the lower side of the lower mounting member 23 through which the transport support shaft 3 passes up and down. The connection flange 23a and the connection flange 25a of the stopper cylinder 25 that can contact the upper surface of the lower end side connection portion 24 of the transport support shaft 3 from the vertical direction are attached.

  Then, in other words, the transport support shaft is placed on the vertical line passing through the center of gravity position of the unloading target equipment E so that the position of the center of gravity of the unloading target equipment E and the vertical center position of the transport support shaft 3 match or substantially match. The mounting position of the slide plate 22 is changed within the mounting position changing operation region with respect to the sliding guide plate 21 so that the suspension center line that is the axis of the third shaft is positioned or substantially positioned.

A suspension bearing member 27 having a pair of suspension arms 26 is screwed and fixed to the upper end portion of the transport support shaft 3, and the upper end surface of both suspension arms 26 is connected to the upper end portion of the drive shaft 4. A mounting seat 28 for the electric motor that is detachably connected in a transmission state is provided.
The bolts 30 and nuts in a state in which the lower connecting flange 29a of the upper mounting member 29 fixedly connected to the lower end of the suspension bearing member 27 and the upper connecting flange 23b of the lower mounting member 23 are spaced apart in the vertical direction. 31 is fixedly connected in a detachable manner.

Next, the lifting and conveying apparatus R for the fluid equipment carrying-out facility of the present invention will be described.
In this lifting and conveying apparatus R, a reciprocating lifting means that can be installed on the slide plate 22 of the housing H and that can be operated with a divided stroke corresponding to a plurality of ones of the total lifting length of the conveying support shaft 3. The lifting force of the lifting means R1 is transported by detachably connecting R1, the lifting means R1 (see FIGS. 2 and 3) and the connected portion C provided on the protruding shaft portion 3A of the transport support shaft 3. Between the connecting means R2 (see FIGS. 3 and 4) applied from the axial direction to the protruding shaft portion 3A of the support shaft 3, and between the protruding shaft portion 3A of the transport support shaft 3 and the slide plate 22 of the housing H. A detachable shaft holding means R3 (see FIGS. 5 to 8) for receiving the load of the transport support shaft 3 including the unloading target equipment E and holding the load at the lifting position is provided.

As shown in FIGS. 2 and 3, the lifting means R <b> 1 includes a jack unit JU including a pair of left and right screw jacks J disposed on the slide plate 22 of the housing H.
Each screw jack J is mounted on a jack mounting seat 40 provided on each of the left and right sides of the conveyance support shaft 3 in the slide plate 22 and is equipped with a speed reduction mechanism (not shown) including a worm and a worm wheel. A jack case 41 is provided. In the jack case 41, a screw shaft 42 that rotates integrally with the worm wheel of the speed reduction mechanism protrudes upward in a vertical posture parallel to the transport support shaft 3, and a worm shaft 43 is in a horizontal posture orthogonal to the screw shaft 42. It is supported through.

An electric motor 44 as a drive source is connected to the front end of the worm shaft 43 of one screw jack J, and a transmission chain 46 extends over a sprocket 45 provided at the rear end of the worm shaft 43 of both screw jacks J. It is wound.
When the electric motor 44 is driven, the screw shafts 42 of the screw jacks J rotate in the same direction and at the same speed, and a screw piece (traveling) that is an example of an elevating unit screwed to the screw shafts 42. Nut) 47 moves up and down in the same direction by the same amount.
The maximum ascending / descending stroke of the screw pieces 47 of the both screw shafts 42 is configured as a divided stroke corresponding to a plurality of one-thousands of the total lifting length of the transport support shaft 3.

As shown in FIGS. 3 and 4, the connecting means R <b> 2 moves up and down along the axial direction of the transport support shaft 3 in conjunction with the reciprocating operation of the jack unit JU, and is connected to the transport support shaft 3. A lifting force applying unit 50 that can be engaged and disengaged from the front-rear direction, which is the axial diameter direction of the conveyance support shaft 3, is provided with respect to C.
The lifting force applying portion 50 is placed and supported on the upper surface of the pair of screw pieces 47 of the lifting means R1 in a posture along the front-rear direction, and is fixed to the upper surface of the screw piece 47 with a bolt or the like. The lifting body 51 and the opposite ends of the pair of lifting bodies 51, that is, the front and rear ends of both lifting bodies 51, slide in the front-rear direction, which is the engagement / disengagement direction. It is comprised from a pair of square-bar-shaped raising force provision member 52 erected in the mounting state so that operation was possible.

Long holes 51a for restricting the sliding operation range of the lifting force applying member 52 to a range extending from the engaging position to the disengaging position are formed at both ends in the front-rear direction of each lifting body 51, and each lifting force is applied. Bolt insertion holes 52 a that communicate with the long holes 51 a of the elevating body 51 in the installed state are formed at both ends in the left-right direction of the member 52.
Then, a tightening operation is performed with a bolt 53 inserted through the elongated hole 51a of each lifting body 51 and the bolt insertion hole 52a of each lifting force applying member 52 that are communicated in the installed state, and a nut 54 that is screwed to the bolt 53. Thus, each lifting force applying member 52 can be fixed at least in the engaged position.

  The coupled portion C of the transport support shaft 3 is lifted out of the housing H by a first lifting jig C1 (see FIGS. 2 to 4) that is detachably attached to the upper end of the transport support shaft 3 and a jack unit JU. From the second lifting jig C2 (see FIGS. 7 to 9) which is detachably attached to the load supporting cylinder 80 of the shaft holding means R3 mounted on the lifting portion of the protruding shaft portion 3A of the transport support shaft 3. It is configured.

As shown in FIGS. 2 to 4, the first lifting jig C <b> 1 includes a lower connecting plate 61 that is fixedly connected to the mounting seat 28 at the upper end of the transport support shaft 3 with bolts 68, a suspension plate 62, and a reinforcement. It consists of an upper force receiving plate 64 provided with a plate 63, and a cylindrical connecting cylinder 65 fixed integrally to the lower connecting plate 61 and the upper force receiving plate 64 by welding or the like.
The height of the connecting cylinder 65 is such that the pulling force applying member 52 is in the engagement / disengagement direction with respect to the engaging space 66 formed between the opposing surfaces of the lower connecting plate 61 and the upper force receiving plate 64. It is configured at a height that allows entry from the direction.
Further, when the first lifting jig C1 is attached to the attachment seat 28 of the conveyance support shaft 3, the small-diameter input shaft portion 4A formed at the upper end portion of the drive shaft 4 is connected through the through hole of the lower connection plate 61. It is configured to enter the internal space of the cylindrical body 65.

The lower surface of the upper force receiving plate 64 with which the lifting force application member 52 abuts due to the upward movement of the lifting force application member 52 at the engagement position entering the engagement space 66 of the first lifting jig C1. A lifting force (lifting force) along the axial direction of the transport support shaft 3 is applied to the (power receiving surface).
Further, the upper force receiving plate 64 communicates with a plurality of bolt insertion holes 52 b formed on the central portion side in the left-right direction which is the longitudinal direction of the both lifting force applying members 52, and is connected to the upper force receiving plate 64 by bolts 69 and nuts 70. A bolt insertion hole 64a for fixing and connecting the force receiving plate 64 and the both lifting force applying members 52 is formed.

  In the first lifting operation step in which the lifting force is applied to the conveyance support shaft 3 using the first lifting jig C1, the upper coupling of the lower coupling flange 29a of the upper mounting member 29 and the lower mounting member 23 is performed. The bolt 30 and the nut 31 that are fixedly connected to the flange 23b are removed.

As shown in FIGS. 7 to 9, the second lifting jig C <b> 2 has the transport support shaft 3 with respect to the load support cylinder 80 of the shaft holding means R <b> 3 attached to the lifting portion of the protruding shaft portion 3 </ b> A of the transport support shaft 3. It is comprised from the division | segmentation raising jig | tool parts C2a and C2b of the same shape of the 2 division | segmentation structure which can be mounted | worn from the axial diameter direction.
Each of the split lifting jig portions C2a and C2b is brought into contact with the lower surface of the rectangular divided lower connecting plate 71 attached to the upper surface of the lifting force applying member 52 and the upper connecting flange 81 of the load supporting cylinder 80 and conveyed. A semi-annular split upper force receiving plate 72 that applies a lifting force (lifting force) along the axial direction of the support shaft 3, and a split lower connecting plate that can be packaged along the outer peripheral surface of the load support cylinder 80. 71 and a semi-cylindrical divided connecting cylinder 73 which is integrally fixed to the upper divided force receiving plate 72 by welding or the like.

Furthermore, between the opposing surfaces of the divided lower connecting plate 71 and the divided upper force receiving plate 72, the both ends in the circumferential direction of the divided connecting cylindrical body 73 extend outward in the axial radial direction of the transport support shaft 3 along the divided surface. A pair of extended connecting plates 74 and a reinforcing plate 75 extended along the disengagement direction from the center position in the circumferential direction of the back surface of the split connecting cylinder 73 and the intermediate position of the back surfaces of both connecting plates 74 are welded or the like. It is fixed with.
Further, each connecting plate 74 is formed with a bolt insertion hole 74a for fixing and connecting both split pulling jig portions C2a and C2b with bolts and nuts, and the split lower connecting plate 71 has a pulling force applying member. A bolt insertion hole 71a is formed which communicates with a plurality of bolt insertion holes on the center side in the longitudinal direction of 52, and for fixing and connecting the divided lower connection plate 71 and the lifting force applying member 52 with bolts 69 and nuts 70. ing.

  As shown in FIGS. 5 to 8, the shaft holding means R <b> 3 includes a plurality of load support cylinders 80 capable of receiving the load of the transport support shaft 3 including the unloading target equipment E. Each load supporting cylinder 80 is newly exposed from the upper part of the housing H as the jack unit JU is pulled up. Specifically, the load supporting cylinder 80 is specifically exposed from the lower mounting member 23 of the slide plate 22 of the housing H. It is composed of split load support cylinders 80A and 80B having the same shape and having a two-part structure that can be mounted from the axial direction of the transport support shaft 3 to the raised portion of the protruding shaft portion 3A.

Bolts are inserted into both ends of the split load support cylinders 80A and 80B constituting each load support cylinder 80 in the axial direction of the cylinder to be fixedly connected to the connection flange 81 of the other load support cylinder 80 with bolts and nuts. A semi-annular connecting flange 81 provided with a hole 81a is fixed by welding or the like.
Further, both ends of the split load supporting cylinders 80A and 80B in the circumferential direction are mounted in an exterior posture (holding posture) attached from the axial radial direction to the raised portion of the protruding shaft portion 3A of the transport support shaft 3. A connecting plate 82 having a bolt insertion hole 82a for fixing and connecting the split load supporting cylinders 80A and 80B with bolts and nuts is fixed by welding or the like.

Next, a fluid equipment carrying-out method for lifting and carrying the equipment E to be carried out using the fluid equipment carrying-out facility configured as described above will be described.
As described above, the unloading target equipment E is the cutting machine CM that holds the cut and removed pipe portion 1B after cutting, and in a stable posture on the inner surface of the lower cover 10 in the lower work space S1 of the housing H. The state is shown in FIG.

[1] Preparatory work process As shown in FIGS. 1 to 3, a pair of screws constituting the jack unit JU is mounted on the jack mounting seats 40 provided on the left and right sides of the transport support shaft 3 in the slide plate 22 of the housing H. The jack case 41 of the jack J is attached with a bolt or the like. One jack case 41 is attached with an electric motor 44 that is connected to the front end of the worm shaft 43, and is connected to a sprocket 45 provided at the rear end of the worm shaft 43 of both screw jacks J. Wind 46.

On each of the upper surfaces of the screw pieces 47 screwed into the screw shafts 42 of both screw jacks J, an elevating body 51 that constitutes one of the lifting force applying portions 50 of the connecting means R2 is mounted in a parallel posture along the front-rear direction. And fixedly connected with bolts or the like.
A rectangular bar-shaped lifting force applying member 52 that constitutes the other of the lifting force applying portions 50 of the connecting means R2 extends along the left-right direction across the upper surfaces of the front end portions and the rear end portions of the lifting bodies 51. Install in a parallel posture so that it can slide freely. Both the raising and lowering bodies 51 and the lifting force applying member 52 that are installed are inserted through the long holes 51 a formed in the both raising and lowering bodies 51 along the front-rear direction and the bolt insertion holes 52 a of each lifting force applying member 52. The bolts 53 and the nuts 54 screwed to the bolts 53 are connected so as to be movable in the front-rear direction, which is the engagement / disengagement direction.
Both the lifting force applying members 52 are held at the disengagement positions brought close to the outer end sides of the long holes 51 a along the front-rear direction formed in the both lifting bodies 51.

Further, the mounting seat 28 on the upper end side of the transport support shaft 3 is connected to the lower side of the first lifting jig C1 constituting one of the connected portions C of the transport support shaft 3, as shown in FIGS. The plate 61 is fixedly connected with a bolt 68.
In this state, as shown in FIG. 4, both the lifting force applying members 52 are moved to the engagement positions brought closer to the inner ends of the long holes 51 a of the lifting and lowering bodies 51, and the lower side of the first lifting jig C <b> 1. Both pulling force applying members 52 are inserted into the engaging space 66 formed between the opposing surfaces of the connecting plate 61 and the upper force receiving plate 64 from the front-rear direction which is the engaging / disengaging operation direction.
It should be noted that, when the both lifting force applying members 52 are disposed in the engagement space 66 of the first lifting jig C1, both the lifting and lowering bodies 51 and the lifting force applying member 52 are fixedly connected by bolts 53 and nuts 54. At the same time, the lifting force applying member 52 and the upper force receiving plate 64 of the first lifting jig C1 are fixedly connected by bolts 69 and nuts 70.
Further, the bolt 30 and the nut 31 that fixedly connect the lower connecting flange 29a of the upper mounting member 29 and the upper connecting flange 23b of the lower mounting member 23 are removed.

[2] First lifting operation step As shown in FIG. 5, when the electric motor 44 of the jack unit JU is driven to rotate forward, the screw shafts 42 of both screw jacks J rotate in the same direction and at the same speed. The lifting and lowering bodies 51 and the lifting force applying members 52 are lifted by the same amount in the same direction via the screw pieces 47 screwed to the both screw shafts 42.
Due to the upward movement of the lifting force application member 52 in the engagement position that has entered the engagement space 66 of the first lifting jig C1, the lower surface of the upper force receiving plate 64 with which the lifting force application member 52 is in contact. Thus, a lifting force (lifting force) along the axial direction of the transport support shaft 3 is applied.

The first lifting stroke (pickup stroke) of the screw pieces 47 of both screw shafts 42 is set to a divided stroke corresponding to a plurality of one-thousands of the total lifting length of the transport support shaft 3.
Due to the first ascending stroke by the screw pieces 47 of the screw shafts 42, the housing H is disposed between the lower connecting flange 29a of the upper mounting member 29 and the upper connecting flange 23b of the lower mounting member 23 which are moved apart. From the lower mounting member 23 of the slide plate 22, the raised portion of the protruding shaft portion 3 </ b> A of the transport support shaft 3 is newly exposed. One or a plurality of load support cylinders 80 corresponding to the lifting height corresponding to the first lifting stroke are conveyed and supported by the constituent members of the shaft holding means R3 at the exposed lifting portion of the protruding shaft portion 3A. The shaft 3 is mounted from the axial direction.
In this embodiment, two types of load support cylinders 80 having different heights (for example, two types having a height of 450 mm and 275 mm) are mounted in combination. Both load supporting cylinders 80 are not fixedly connected.

Specifically, the split load support cylinders 80A and 80B having the same shape of the two-part structure constituting the load support cylinder 80 are mounted from the axial direction of the transport support shaft 3 and are in this exterior posture (holding posture). The connecting plates 82 of both split load supporting cylinders 80A and 80B are fixedly connected with bolts and nuts.
When a plurality of load support cylinders 80 are mounted, the connection flanges 81 of the two load support cylinders 80 adjacent in the vertical direction are fixedly connected with bolts and nuts as necessary.

Note that each of the lifting strokes (lifting strokes) from the first time of the screw pieces 47 of the screw shafts 42 to the fourth time of final lifting correspond to a plurality of a plurality of the total lifting length of the transport support shaft 3. It is set slightly larger than the division stroke. In other words, the length of the lifted portion of the protruding shaft portion 3A of the transport support shaft 3 lifted by the jack unit JU is set to be larger than the mounting height of the load support tube 80.
For this reason, the length of the lifted portion of the protruding shaft portion 3A of the transport support shaft 3 lifted by the jack unit JU is larger than the mounting height of the load support cylinder 80, and the spatial margin that appears due to the excessive pulling up. Thus, the mounting operation of the load supporting cylinder 80 can be performed efficiently and easily.

Further, when the first mounting operation of the load supporting cylinder 80 is completed, the electric motor 44 of the jack unit JU is driven in reverse, and both lifting bodies are connected via the screw pieces 47 screwed to the both screw shafts 42. 51 and both lifting force applying members 52 are lowered in the same direction by the same amount.
Due to the lowering of the both lifting force applying members 52, the both lifting force applying members 52 are separated downward from the lower surface of the upper force receiving plate 64 of the first lifting jig C1, and the load of the transport support shaft 3 including the unloading target equipment E is loaded. Is securely received and supported by the lower mounting member 23 on the slide plate 22 side of the housing H through the load support cylinder 80 to which the is attached.

  Thereafter, both the lifting force applying members 52 are moved from the engagement position to the disengagement position along the long holes 51a of the lifting and lowering bodies 51, and the electric motor 44 of the jack unit JU is driven in the reverse direction so as to lift both. The force giving member 52 is lowered to the next pulling start position.

[3] Second Lifting Operation Step As shown in FIGS. 6 to 9, the uppermost load support cylinder 80 mounted in the first lifting operation step is connected to the connected portion C of the transport support shaft 3. The second lifting jig C2 constituting the other is mounted from the front-rear direction, which is the engaging / disengaging direction.
Specifically, the split lifting jig portions C2a and C2b having the same shape of the two split structure constituting the second lifting jig C2 are attached to the uppermost load support cylinder 80 from the axial direction of the transport support shaft 3. Then, the connecting plates 74 of both split pulling jig portions C2a and C2b in the exterior posture are fixedly connected with bolts and nuts.

In this embodiment, since the second lifting jig C2 is used in the second to fourth lifting operation steps, the divided lifting jig portions C2a and C2b of the second lifting jig C2 are divided. The lower connecting plate 71 is fixedly connected to the upper surface of both lifting force applying members 52 constituting the other of the lifting force applying portions 50 of the connecting means R2 by bolts 69 and nuts 70.
Therefore, as shown in FIG. 9, when both lifting force application portions 50 are moved from the disengagement position to the engagement position along the long holes 51 a of the two lifting bodies 51, both split lifting jig portions C <b> 2 a and C <b> 2 b are connected to each other. Are joined to the load supporting cylinder 80, and in this joined state, the connecting plates 74 of the two split lifting jig portions C2a and C2b are fixedly connected to each other with bolts and nuts.

Next, as shown in FIG. 10, when the electric motor 44 of the jack unit JU is driven to rotate forward, both the lifting and lowering bodies 51 and the both lifting bodies 51 are lifted via the screw pieces 47 screwed to the screw shafts 42 of the both screw jacks J. The force applying member 52 rises by the same amount in the same direction.
At this time, since the upper surface of the divided upper force receiving plate 72 of both split lifting jig portions C2a and C2b is in contact with the lower surface of the connecting flange 81 on the upper side of the load supporting cylinder 80, both split lifting jig portions When the lifting force application member 52 to which the divided lower connecting plate 71 of C2a and C2b is fixedly connected is moved upward, the shaft is connected to the transport support shaft 3 via the split lifting jig portions C2a and C2b and the load support cylinder 80. A lifting force (lifting force) along the direction is applied.

The second ascending stroke (pickup stroke) of the screw pieces 47 of both screw shafts 42 is set slightly larger than the divided stroke corresponding to a plurality of one-thousands of the total lifting length of the transport support shaft 3. Due to the second ascending stroke, the housing H slides between the lower connecting flange 81 in the second load supporting cylinder 80 and the upper connecting flange 81 in the lowermost load supporting cylinder 80 which are separated from each other. The raised portion of the protruding shaft portion 3A of the conveyance support shaft 3 is newly exposed from the lower mounting member 23 of the plate 22.
As shown in FIG. 12, one or a plurality of load support cylinders 80 corresponding to the lifting height corresponding to the second lifting stroke are provided on the exposed lifting portion of the protruding shaft portion 3A. Install from the shaft radial direction.
In this embodiment, two load support tubes 80 having the same height (for example, a load support tube having a height of 450 mm) are provided between the load support tubes 80 having different heights mounted in the first lifting operation step. 2 of 80).

Further, when the second mounting operation of the load supporting cylinder 80 is completed, the electric motor 44 of the jack unit JU is driven in the reverse direction, and both lifting bodies are connected via the screw pieces 47 screwed to the both screw shafts 42. 51, both lifting force applying members 52, and both split lifting jig portions C2a, C2b are lowered in the same direction by the same amount.
Along with this lowering, the upper surface of the divided upper force receiving plate 72 of both divided lifting jig portions C2a and C2b is separated downward from the lower surface of the upper connecting flange 81 of the uppermost load supporting cylinder 80, and the carrying-out target equipment E Is received and supported by the lower mounting member 23 on the slide plate 22 side of the housing H through a total of four load support cylinders 80 mounted.

  Thereafter, as shown in FIG. 12, both lifting force applying members 52 to which both split lifting jig portions C <b> 2 a and C <b> 2 b of the second lifting jig C <b> 2 are fixedly connected are moved along the long holes 51 a of both the lifting bodies 51. While moving from the engagement position to the disengagement position, the electric motor 44 of the jack unit JU is driven in reverse so that both split lifting jig portions C2a and C2b of the second lifting jig C2 are moved to the next lifting start position. To lower.

[4] Third Lifting Operation Step As shown in FIG. 12, both lifting force applying portions 50 are moved from the disengagement position to the engagement position along the long holes 51a of the lifting and lowering bodies 51, and both lifting operations are performed. The two split lifting jigs C2a and C2b of the second lifting jig C2 fixedly connected to the force applying part 50 are secondly loaded from below in the load supporting cylinder 80 mounted in the second lifting operation process. It attaches to the load support cylinder 80 located in the second position, and the connection plates 74 of both split pulling jig portions C2a and C2b in this exterior posture are fixedly connected with bolts and nuts.

Next, when the electric motor 44 of the jack unit JU is driven to rotate forward, as shown in FIG. 13, both the lifting and lowering bodies 51 and the both lifting bodies 51 are lifted through the screw pieces 47 screwed into the screw shafts 42 of the both screw jacks J. The force applying member 52 rises by the same amount in the same direction.
At this time, since the upper surface of the divided upper force receiving plate 72 of both split lifting jig portions C2a and C2b is in contact with the lower surface of the connecting flange 81 on the upper side of the load supporting cylinder 80, both split lifting jig portions When the lifting force application member 52 to which the divided lower connecting plate 71 of C2a and C2b is fixedly connected is moved upward, the shaft is connected to the transport support shaft 3 via the split lifting jig portions C2a and C2b and the load support cylinder 80. A lifting force (lifting force) along the direction is applied.
The third ascending stroke (pickup stroke) of the screw pieces 47 of both screw shafts 42 is set to be slightly larger than the divided stroke corresponding to a plurality of one-thousands of the total lifting length of the transport support shaft 3. Due to the third ascending stroke, the housing H slides between the lower connecting flange 81 in the second load support cylinder 80 that has moved away from the lower and the upper connecting flange 81 in the lowermost load support cylinder 80. The raised portion of the protruding shaft portion 3A of the conveyance support shaft 3 is newly exposed from the lower mounting member 23 of the plate 22.
As shown in FIG. 14, one or more load support cylinders 80 corresponding to the lifting height corresponding to the third lifting stroke are provided at the lifting portion of the exposed protruding shaft portion 3 </ b> A. Install from the shaft radial direction.
In this embodiment, two load support tubes 80 having the same height (for example, a load having a height of 450 mm) are provided between the load support tube 80 at the lowest end and the load support tube 80 positioned second from the bottom. Two support cylinders 80) are attached.

Further, when the third mounting operation of the load supporting cylinder 80 is completed, the electric motor 44 of the jack unit JU is driven in reverse, and both lifting bodies are connected via the screw pieces 47 screwed to the both screw shafts 42. 51, both lifting force applying members 52, and both split lifting jig portions C2a, C2b are lowered in the same direction by the same amount.
Along with this lowering, the upper surface of the divided upper force receiving plate 72 of both divided lifting jig portions C2a, C2b is separated downward from the lower surface of the connecting flange 81 on the upper side of the second load supporting cylinder 80 from the lower side, and is to be carried out. It is reliably received and supported by the lower mounting member 23 on the slide plate 22 side of the housing H via a total of six load support cylinders 80 to which loads of the transport support shaft 3 including the equipment E are mounted.

  Thereafter, the both lifting force applying members 52, to which both split lifting jig portions C2a and C2b of the second lifting jig C2 are fixedly connected, are disengaged from the engaging position along the long holes 51a of the lifting and lowering bodies 51. While moving to the position, the electric motor 44 of the jack unit JU is driven in reverse to lower both split pulling jig portions C2a and C2b of the second pulling jig C2 to the next pulling start position.

[5] Fourth Lifting Operation Step As shown in FIG. 14, both lifting force application portions 50 are moved from the disengagement position to the engagement position along the long holes 51 a of both lifting and lowering bodies 51. The load supporting cylinder 80 located at the second position from the bottom mounted in the third pulling operation step is the two split pulling jig portions C2a and C2b of the second pulling jig C2 fixedly connected to the force applying portion 50. And the connecting plates 74 of both split pulling jig portions C2a and C2b in the exterior posture are fixedly connected with bolts and nuts.

Next, when the electric motor 44 of the jack unit JU is driven to rotate in the forward direction, as shown in FIGS. 15 and 16, both the lifting bodies 51 are connected via the screw pieces 47 screwed to the screw shafts 42 of the both screw jacks J. And both the lifting force giving members 52 rise by the same amount in the same direction.
At this time, since the upper surface of the divided upper force receiving plate 72 of both split lifting jig portions C2a and C2b is in contact with the lower surface of the connecting flange 81 on the upper side of the load supporting cylinder 80, both split lifting jig portions When the lifting force application member 52 to which the divided lower connecting plate 71 of C2a and C2b is fixedly connected is moved upward, the shaft is connected to the transport support shaft 3 via the split lifting jig portions C2a and C2b and the load support cylinder 80. A lifting force (lifting force) along the direction is applied.
The fourth lifting stroke (pickup stroke) of the screw pieces 47 of both screw shafts 42 is set to a divided stroke corresponding to a plurality of one-thousands of the total lifting length of the transport support shaft 3, and this fourth lifting stroke is performed. Due to the stroke, the unloading target equipment E is completely lifted and conveyed into the upper work space S2 of the housing H.

  When the material E to be carried out is lifted and conveyed into the upper work space S2 of the housing H, the valve body 5 of the work on-off valve V is closed to discharge the water in the upper work space S2 of the housing H to the outside. To do. At this time, the carry-out target equipment E is placed and supported in a stable posture in the upper work space S2.

  Further, the load support cylinder 80 having the lowest height at the bottom end, which is mounted to determine the pulling start position, is removed from the protruding shaft portion 3A of the transport support shaft 3, and no new load support cylinder 80 is mounted. . Therefore, the load of the conveyance support shaft 3 including the unloading target equipment E is surely applied to the screw shafts 42 of the screw jacks J via both split lifting jig portions C2a and C2b, the lifting force applying member 52, and both the lifting bodies 51. It is supported and supported.

By repeating the lifting operation of the conveyance support shaft 3 in units of divided strokes as described above and the position holding operation of the conveyance support shaft 3 at the lifting position, the unloading target equipment E in the lower work space S1 of the housing H is moved upward. It can be reliably pulled up and conveyed into the work space S2.
Therefore, when it is not possible to secure a sufficient lifting work space at least above the entire length of the transport support shaft 3 above the housing H, or when the transport support shaft 3 and the housing H are inclined with respect to the vertical direction. Even if it exists, the lifting force is efficiently applied to the conveyance support shaft 3 without any twist, and the unloading target equipment E in the lower work space S1 is reliably and smoothly lifted and conveyed into the upper work space S2. can do.
Moreover, since the operation stroke of the jack unit JU is a divided stroke corresponding to a plurality of one-thousandths of the total lifting length of the transport support shaft 3, the jack unit JU itself becomes smaller, and the equipment for lifting and transporting is made compact. Can be configured.

[6] Unloading work process As shown in FIGS. 17 and 18, the screw jacks J are removed from the pair of left and right jack mounting seats 40 of the slide plate 22 of the housing H, and both suspension arms at the upper end of the transport support shaft 3 are removed. 26 and the jack mounting seat 40 are attached with a chain block 90 for stabilizing the suspension posture of the transport support shaft 3 on which the load support cylinder 80 is mounted.
Next, the suspension wire 92 attached to the suspension hook 91 of the mobile crane is attached to the suspension plate 62 of the first lifting jig C1 at the upper end of the transport support shaft 3, and the transport support shaft 3 The connection between the lower end and the drive unit 2 of the cutting machine CM is released.
In this state, the conveyance support shaft 3 on which the slide plate 22 and the load support cylinder 80 are mounted is lifted and carried out to a predetermined location.

  In this case, there is no cutting machine CM, and since it is suspended and carried out in a compact form that is only the length of the conveyance support shaft 3, a sufficient lifting work space that is at least the full length of the conveyance support shaft is secured above the housing. You can apply even if you can't.

[Other Embodiments]
(1) In the above-described embodiment, the lifting means R1 of the lifting and conveying apparatus R is installed in the housing H. However, the lifting means R1 is lifted from the frame material for constructing the working pits to a fixed portion such as a steel material extended to the upper part of the housing H. You may arrange | position the raising means R1 of the conveying apparatus R. FIG.

(2) In the above-described embodiment, the lifting means R1 is configured by the jack unit JU including the pair of left and right screw jacks J. However, the jack unit JU may be configured by a hydraulic jack.
Further, the lifting means R1 may be constituted by a fluid pressure cylinder such as a hydraulic cylinder.

(3) In the above-described embodiment, the shaft holding means R3 is configured by the plurality of detachable load support cylinders 80 that can receive the load of the transport support shaft 3 including the unloading target equipment E. You may comprise from the shaft clamping fixture which can be switched to the clamping fixed state which clamps and fixes from an axial direction, and a clamping cancellation | release state.
In short, as the shaft holding means R3, any structure may be used as long as it can receive the load of the transport support shaft 3 including the unloading target equipment E and hold it in the lifted position.

  (4) In the above-described embodiment, the cutting machine CM that holds the cut and removed pipe portion 1B after cutting as the unloading target equipment E existing in the work target area of the water pipe 1 in the lower work space S1 of the housing H. However, the carry-out target equipment E may be a valve body or an inner valve box of a water control valve to be replaced.

  (5) In the above-described embodiment, the connected portion C of the transport support shaft 3 is pulled out of the housing H by the first lifting jig C1 detachably attached to the upper end of the transport support shaft 3 and the jack unit JU. The second support jig C2 is detachably attached to the load support cylinder 80 of the shaft holding means R3 attached to the lifted portion of the protruding shaft portion 3A of the transport support shaft 3 formed. You may comprise from one type of raising jig provided with the function of the 1st raising jig | tool C1, and the function of the 2nd raising jig C2.

  (6) In the above-described embodiment, the connecting means R <b> 2 is connected to the connected portion C of the transport support shaft 3 from the lifting force applying portion 50 that can be engaged and disengaged from the front-rear direction that is the axial diameter direction of the transport support shaft 3. The connecting means R2 is configured such that the lifting means R1 and the connected portion C provided on the projecting shaft portion 3A of the transport support shaft 3 are detachably connected, and the lifting force of the lift means R1 is increased by the transport support shaft. Any structure may be used as long as it can be applied to the three protruding shaft portions 3A from the axial direction.

  (7) In the above-described embodiment, the water pipe 1 is exemplified as the fluid pipe, but other fluid pipes through which industrial water, gas, or the like flows may be used.

1 Existing pipe (water pipe)
DESCRIPTION OF SYMBOLS 3 Conveyance support shaft 3A Projection shaft part 50 Lifting force provision part 51 Lifting body 52 Lifting force provision member 80 Load support cylinder 81 Connecting flange C Connected part C1 1st raising jig C2 2nd raising jig E Unloading object equipment H housing R Lifting conveying device R1 Lifting means R2 Connecting means R3 Shaft holding means S1 Lower work space S2 Upper work space V Work open / close valve

Claims (8)

The work area of the existing pipe is sealed with a housing having a work on / off valve capable of partitioning the internal space into a lower work space and an upper work space, and the work of the existing pipe is performed in the lower work space. A transport support shaft connected to the unloading target equipment existing in the target area is projected outward from the upper portion of the housing, and a lifting force is applied to the projecting shaft portion of the transport support shaft, so that the inside of the lower work space A fluid equipment unloading facility provided with a lifting and transporting device for lifting and transporting the unloading target equipment into the upper work space,
In the lifting and conveying apparatus, a reciprocating lifting means that can be installed in the housing or the fixed portion and that can be operated with a divided stroke corresponding to a plurality of the total lifting length of the conveying support shaft;
The lifting means and the connected portion provided on the protruding shaft portion of the transport support shaft are detachably connected, and the lifting force of the lifting means is applied to the protruding shaft portion of the transport support shaft from the axial direction. A connecting means to be provided;
Between the projecting shaft portion of the transport support shaft and the housing or the fixed portion, there is a shaft holding means for receiving the load of the transport support shaft including the unloading target equipment and holding the transport support shaft in the lifted position. Equipped equipment for transporting fluid equipment.   The connecting means moves up and down along the axial direction of the transport support shaft in conjunction with the reciprocating operation of the lifting means, and the shaft diameter of the transport support shaft with respect to the connected portion of the transport support shaft The fluid equipment carrying-out facility according to claim 1, further comprising a lifting force applying portion that can be engaged and disengaged from a direction.   A pair of lifting bodies connected to the pair of lifting parts of the lifting means and a lifting / lowering body that spans both the lifting bodies so as to be freely engaged and disengaged in the axial direction of the transport support shaft. The fluid equipment carrying-out facility according to claim 2, further comprising a lifting force application member.   The shaft holding means is a cylindrical body having a divided structure that can be mounted from the axial radial direction to the lifting portion of the protruding shaft portion of the transport support shaft lifted out of the housing by the lifting means, and the cylinder The fluid equipment carry-out facility according to any one of claims 1 to 3, comprising a plurality of load support cylinders in which load receiving portions are formed at both ends of the cylindrical body in the axial direction of the cylinder.   A connected portion of the transport support shaft includes a first lifting jig that is detachably attached to an upper end portion of the transport support shaft, and a load support tube that is attached to a lifting portion of the protruding shaft portion of the transport support shaft. The fluid equipment carrying-out facility according to claim 4, comprising a second lifting jig that is detachably attached. A sealing work process for sealing a work target area of an existing pipe with a housing having a work on / off valve capable of partitioning an internal space into a lower work space and an upper work space; and in the lower work space of the housing In the lower work space by the lifting movement of the projecting shaft portion of the transport support shaft that is connected to the unloading target equipment existing in the work target area of the existing pipe and projects to the outside through the upper portion of the housing. A fluid equipment carrying-out method including a carrying-out work process for lifting and transporting the equipment to be carried out into the upper work space, wherein the carrying-out work process is performed by repeating the following (a) and (b): A method for carrying out fluid equipment.
(A) Split lifting in which the protruding shaft portion of the transport support shaft that protrudes from the upper part of the housing is lifted by a reciprocating lifting device with a split stroke corresponding to a plurality of the total lift length of the transport support shaft. Process.
(B) A position holding step of holding the transport support shaft pulled up by the lifting device in a lifted position by a shaft holding means for receiving a load of the transport support shaft including the unloading target equipment.   The position holding step by the shaft holding means is a split provided with connecting flanges serving as load receiving portions at both ends with respect to the lifted portion of the protruding shaft portion of the transport support shaft lifted out of the housing by the lifting means. The fluid equipment carrying-out method according to claim 6, which is a step of mounting one or a plurality of load supporting cylinders having a structure from the axial diameter direction of the carrying support shaft. The division stroke in the division raising step is set to be larger than the mounting height of the load supporting cylinder attached to the raising portion of the protruding shaft portion of the transport support shaft in the next position holding step. How to carry out fluid equipment.

Images