JP2019104565A - Fixing method of heavy load and device thereof - Google Patents

Abstract

To provide a fixing method of heavy loads and a device thereof capable of allowing a fixing operation and a releasing operation in a short time.SOLUTION: A PC steel strand 37b for locking is stretched and fixed through a first locking device 43 and a second locking device 44 between a front anchor part 35 installed in the front position of the transfer direction of a heavy load 39 and a rear anchor part 36 installed in the rear position of the transfer direction of the heavy load, the first locking device 43 and the second locking device 44 provide the conical wedge to lock the movement in one direction and the other while penetrating into the PC steel strand 37b for locking, and attache the conical wedge to an installation beam 41 provided on the heavy load 39. An earthquake resistant facility 45 is desirable to provide also in the direction orthogonal to the transfer direction of the heavy load 39.SELECTED DRAWING: Figure 1

Description

  According to the present invention, the temporary fixing operation of a heavy load such as a bridge girder to the fixing base and the releasing operation thereafter can be performed safely and promptly, the working time can be secured, and the efficient time schedule can be assembled. The present invention relates to a method and apparatus for fixing a heavy load.

  When a heavy load such as a bridge girder is temporarily stopped during transfer, when the heavy load is transferred to a predetermined position and stopped to shift to another operation, an earthquake or other emergency occurs during the transfer of the heavy load. When stopping the transfer of heavy objects, etc., work is performed to temporarily fix the heavy materials to a fixed base such as a delivery yard or a bridge pier for securing safety, and then release the fixed.

An apparatus as shown in FIG. 4 is known in order to prevent the escape in construction for transferring a heavy load such as a bridge girder with a downward slope (Patent Document 1).
In FIG. 4, the PC steel stranded wire 10 has a reaction supporting point at the upper support 11 and the lower support 12 at both ends thereof.
In order to pull down the heavy load 13 with the downward slope 21, a constant brake pressure Vb is applied to the grip jack 15 of the heavy load brake device 14, and an operating pressure Vo greater than Vb is applied to the transfer device 16. The first jack 19 and the second jack 20 are alternately expanded and contracted while alternately fastening and releasing.

  Here, the working pressure Vo of the oil being sent from the hydraulic control panel 22 to the transfer device 16 is detected by the jack-side pressure transducer 23. Further, the brake pressure Vb of the oil sent to the grip jack 15 of the heavy duty brake device 14 is detected by the brake side pressure transducer 24. Each of these signals is measured as a load signal by the brake-side load measuring instrument 25 and sent to the programmable controller 26 for comparison. An output signal from the programmable controller 26 is sent to the hydraulic control panel 22 through the control panel 27 to control the transfer device 16 and the heavy duty brake device 14.

In the case where the heavy load 13 is transferred by the downslope 21, when there is a steep slope, there is a risk of runaway, so the brake pressure Vb of the heavy load brake device 14 is raised. Also, when the gradient becomes loose, the brake pressure Vb of the heavy duty brake device 14 is lowered. As described above, the working pressure Vo of the transfer device 16 or the heavy duty brake device 14 is set such that the pressure difference Vo−Vb between the working pressure Vo of the transfer device 16 and the brake pressure Vb of the heavy duty brake device 14 always becomes a constant value. Control the brake pressure Vb.
The escape prevention device as described above can be temporarily used as a method and device for fixing heavy objects.

The applicant has also filed an application for a chuck fixing device (Patent Document 2).
As shown in FIG. 2, the fixing device for a chuck shown in this patent document 2 faces the small diameter end 64 a of the conical wedge 64 to face the chuck releasing device 52, and the large diameter end 64 b of the conical wedge 64. The chuck push-in device 53 is provided, and the chuck release device 52 comprises an extendable and retractable release rod 56, and the pressure release surface of the release rod 56 in a direction away from the small diameter end 64a of the conical wedge 64. 65 and a pressure receiving surface 61 in the direction of pushing in the small diameter end 64a of the conical wedge 64, and the chuck pushing device 53 is composed of a push rod 57 which can be advanced and retracted. The pressure receiving surface 66 in the direction of pushing in the large diameter end 64b of the wedge 64 and the pressure receiving surface 60 in the direction away from the large diameter end 64b of the conical wedge 64 It is those that form.

Patent No. 3786802 gazette. Patent No. 3587504 gazette.

  Generally, while stopping the transfer of the bridge girder (heavy load), in order to prevent the bridge girder from moving freely, it is temporarily fixed to a fixed base such as a delivery yard or a bridge pier. Between the base and the bridge girder, they are fixed in the bridge axial direction using wires or chain blocks. The operation of fixing the bridge girder to the fixed base by the lashing fixing and the fixing / releasing work each took approximately one hour or more. Therefore, under construction conditions involving time constraints, it has been a major bottleneck in securing working time and assembling an efficient time schedule.

(1) In the case of using the invention described in Patent Document 1, for example, at a construction site of a bridge girder in a substantially horizontal delivery yard, the escape of the bridge girder in the reverse direction (direction of the upper support 11) is chucked 17 And 18 can not prevent the escape in the delivery direction with the chucks 17 and 18.
(2) In order to prevent the collapse, fall, fall and escape of the bridge girder caused by the occurrence of a large-scale earthquake, it is insufficient to secure a predetermined designed horizontal seismic resistance.
(3) The shaking direction of the earthquake motion is not constant, and it is a complicated waveform until it is transmitted from the ground to the bridge pier and transmitted to the bridge girder which is the erected structure. For this reason, the earthquake-proof equipment requires equipment not only in the delivery direction (bridge axis direction) but also in the direction perpendicular to the bridge axis, but the invention described in Patent Document 1 can not cope with this.

  In the invention described in Patent Document 2, a heavy load is suspended at the lower end of a PC steel strand, and when lifting up or down this heavy load that is subjected to downward load, the PC steel strand is conical wedge 64 Since it fixes, when fixing a horizontal PC steel strand in forward and reverse directions, there existed a problem that it could not utilize as it was.

  The present invention is a method capable of safely and quickly performing a temporary fixing operation of a heavy load such as a bridge girder to a fixing base and a releasing operation thereafter, securing a working time, and assembling an efficient time schedule. And providing an apparatus.

In the present invention, as shown in FIG. 1, in the case of transferring the weight 39 along the fixed base 33 by the drive unit, the method of the present invention for fixing the weight 39 in particular is:
The first locking device 43 for locking the movement of the weight 39 in one direction and the second locking device 44 for locking the movement of the weight 39 in the opposite direction are provided on the installation beam 41 provided on the weight 39. Attaching as one pair,
The first locking device 43 and the first locking device 43 are disposed between the front anchor portion 35 provided on the fixed base 33 forward of the transfer direction of the heavy load 39 and the rear anchor portion 36 provided on the rear fixed base 33. Securing the wire for locking PC steel wire 37b through the second locking device 44;
The conical wedge 64 in the first lock device 43 is pushed with compressed air against the movement of the weight 39 in one direction, and the movement of the weight 39 is locked by engaging the wire 37b from the lock PC steel. Process,
The conical wedge 64 in the second locking device 44 is pushed with compressed air against the movement of the weight 39 in the other direction, and is engaged with the wire 37b for locking PC steel to lock the movement of the weight 39 It consists of the process.

In order to release the fixation in addition to the fixation method in the present invention,
After the step of locking by the first locking device 43 and the second locking device 44, pressure oil is applied to the pressure oil ports 59 of the respective unlocking devices 52 in the first locking device 43 and the second locking device 44. The steps of feeding and releasing the locking of the PC steel strand 37b for locking by the respective conical wedges 64 are added.

The invention corresponds in particular to the method of transferring a large weight 39 by means of the drive unit along the fixed base 33
The first locking device 43 for locking the movement of the weight 39 in one direction and the second locking device 44 for locking the reverse movement of the weight 1 on the installation beam 41 provided on the weight 39 Attaching multiple pairs as a pair;
Between the front anchor portion 35 provided on the fixed base 33 forward of the transfer direction of the heavy load 39 and the rear anchor portion 36 provided on the rear fixed base 33, the plurality of first locking devices are provided in pairs. 43 and a step of stretching and fixing a plurality of lock PC steel strands 37b penetrating through the second lock device 43;
Applying equal initial tension to all of the plurality of locking PC steel strands 37b;
Conical wedges 64 in the plurality of pairs of first locking devices 43 are simultaneously pressed with compressed air against the unidirectional movement of the heavy load 39, and the heavy load is engaged with the respective lock PC steel wires 37b. Locking the movement of 39,
Conical wedges 64 in the plurality of pairs of second locking devices 44 are simultaneously pressed with compressed air against the reverse movement of the heavy load 39, and the heavy load is engaged with the respective locking PC steel wires 37b. Locking the movement of 33.

The following steps are added to unlock the multiple pairs of locking devices in the present invention.
After the step of locking by the plurality of pairs of first locking devices 43 and the second locking devices 44, the pressure oil of the respective unlocking devices 52 in the plurality of pairs of the first locking devices 43 and the second locking devices 44 At the same time, pressure oil is fed to the ports 59, and the steps of releasing the locking by releasing the locking of the PC steel strand 37b for locking by the respective conical wedges 64 are added.

The present invention relates to an apparatus for transferring a heavy load 39 along a fixed base 33 by a drive unit,
The first locking device 43 for locking the movement of the weight 39 in one direction and the second locking device 44 for locking the movement of the weight 39 in the opposite direction are provided on the installation beam 41 provided on the weight 39. Set as one pair,
The first locking device 43 and the first locking device 43 are disposed between the front anchor portion 35 provided on the fixed base 33 forward of the transfer direction of the heavy load 39 and the rear anchor portion 36 provided on the rear fixed base 33. The tensioning PC steel strand 37b is passed through the second locking device 44,
A cone which is pressed with compressed air into the first lock device 43 which locks against the movement of the weight 39 in one direction, and which engages with the wire 37b from the lock PC steel and locks the movement of the weight 39 Set up the wedges 64,
A cone which is pressed with compressed air into the second locking device 44 which locks against the reverse movement of the weight 39 and which engages the locking PC steel strand 37b to lock the movement of the weight 39 A shape wedge 64 is provided.

The invention relates in particular to a device for transferring a large weight 39 along a fixed base 33 by means of a drive unit,
The first locking device 43 for locking the movement of the weight 39 in one direction and the second locking device 44 for locking the movement of the weight 39 in the opposite direction are provided on the installation beam 41 provided on the weight 39. Provide multiple pairs as one pair,
The first locking device 43 and the first locking device 43 are disposed between the front anchor portion 35 provided on the fixed base 33 forward of the transfer direction of the heavy load 39 and the rear anchor portion 36 provided on the rear fixed base 33. Span a plurality of PC wire strands 37b for locking through two locking devices 44,
A center hole jack 70 for attaching an equal initial tension to all the lock PC steel strands 37b is attached to each anchor portion of the plurality of lock PC steel strands 37b,
Compressed air is pushed into all the first locking devices 43 that lock against movement of the weight 39 in one direction, and simultaneously bites onto the lock PC steel wire wire 37b to move the weight 39 Provide a conical wedge 64 to lock
The compressed air is pushed into all the second locking devices 44 that lock against the backward movement of the weight 39, and simultaneously engages the locking PC steel wire wire 37b to move the weight 39. A conical wedge 64 is provided to lock.

  The first locking device 43 and the second locking device 44 are attached to the installation beam 41 with the same configuration in the opposite direction to each other, and are compressed and fixed to the common or separate lock PC steel wire wire 37b by locking air And a conical wedge 64.

  The first locking device 43 and the second locking device 44 engage the unlocking device 52 for releasing the lock by the conical wedge 64 with pressure oil and bite the conical wedge 64 with compressed air with the wire 37b from the locking PC steel. And a lock push-in device 53 for locking and locking.

  The drive unit is a PC wire strand for propulsion between the front anchor portion 35 provided on the fixed base 33 on the front side in the transfer direction of the heavy load 39 and the propulsion jack 42 installed on the installation beam 41 provided on the heavy load 39. It consists of 37b stretched.

  It is more desirable to provide anti-seismic equipment 45 for suppressing lateral vibration of the heavy load 39 by facing both sides of the heavy load 39 in the direction orthogonal to the transfer direction of the heavy load 39.

  When the weight 39 is light weight such as 100 t or less, a common propelling / locking PC steel stranded wire 37 is attached between the front anchor portion 35 and the rear anchor portion 36 for propulsion and locking. The push jack 42 is attached to the installation beam 41a, and the first lock device 43 and the second lock device 44 are attached to the attachment beam 41b different from the installation beam 41a in opposite directions to each other, the push jack 42 and the first lock device A simple device can be obtained by attaching the propelling and locking PC steel wire 37 through the wire 37 to the second locking device 43 and the second locking device 44.

According to the invention of claim 1,
In the method of transferring a heavy load by a drive unit along a fixed base,
Attaching a first locking device for locking the movement of the weight in one direction and a second locking device for locking the movement in the reverse direction of the weight as a pair on the installation beam provided on the weight; ,
The first locking device and the second locking device are penetrated between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. And fixing the wire from the PC steel for locking.
Pressing a conical wedge in the first locking device against compressed movement of the heavy object in one direction with compressed air to bite into a strand of the PC steel for locking to lock movement of the heavy material;
And pressing the conical wedge in the second locking device against the movement of the weight in the reverse direction with compressed air to bite the wire for locking PC steel and lock the movement of the weight. , Has the following effects.
(1) The fixing operation and releasing operation can be performed in a short time (approximately one minute each) as compared with the so-called lashing fixing method of fixing using a wire, a chain block or the like in the conventional bridge axis direction it can. Therefore, for example, when temporarily stopping the transfer of a heavy load during transfer of a heavy load such as a bridge girder, the emergency during transfer of the heavy load when transferring to another position after transferring the heavy load to a predetermined position. When you stop the transfer of heavy objects, etc., you can temporarily fasten the heavy objects to a fixed base such as a delivery yard or a bridge pier quickly and safely, and under construction conditions with time constraints. It is possible to secure working time and assemble an efficient time schedule.
(2) In the event of an emergency such as occurrence of earthquake motion where the sway direction is not constant, it is possible to cope not only with the delivery direction of the bridge girder but also with the escape due to sway in the opposite direction to the delivery direction.
(3) In order to prevent collapse, fall, fall, and escape of the bridge girder due to the occurrence of a large-scale earthquake, a predetermined designed horizontal earthquake resistance can be secured.

According to the invention of claim 2,
After the step of locking by the first locking device and the second locking device, pressure oil is sent to the pressure oil ports of the respective unlocking devices in the first locking device and the second locking device, and the respective conical shapes are obtained. Since the process of releasing the locking by releasing the biting of the PC steel strand for locking by the wedge is added, it is possible to quickly return to the work of transferring the heavy item after releasing the lock.

According to the invention of claim 3,
In the method of transferring a heavy load by a drive unit along a fixed base,
A pair of first locking devices for locking the movement of the weight in one direction and a second locking device for locking the movement in the reverse direction of the weight on the installation beam provided on the weight Installation process,
The first locking device and the second locking device are provided in pairs for each pair between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. Stretching and fixing a plurality of locking PC steel strands passing through the locking device;
Applying equal initial tension to all of the plurality of locking PC steel strands;
Conical wedges in the plurality of pairs of first locking devices are simultaneously pressed with compressed air against unidirectional movement of the heavy load, and are engaged with the respective lock PC steel wires to lock the movement of the heavy load The process to
Conical wedges in the plurality of pairs of second locking devices are simultaneously pressed with compressed air against the reverse movement of the heavy load, and are engaged with the respective strands of the lock PC steel to lock the movement of the heavy load In the case of transferring a large-sized heavy load in particular, it is possible to secure safely and quickly by using a plurality of strands of PC steel for locking in order to secure a load resistance. In addition, in order to prevent collapse, fall, fall, and escape of the bridge girder due to the occurrence of a large-scale earthquake, it is possible to secure a predetermined designed horizontal earthquake resistance.

According to the invention of claim 4,
After the step of locking with the plurality of pairs of first locking devices and the second locking device, pressure oil is simultaneously applied to the pressure oil ports of the respective unlocking devices in the plurality of pairs of first locking devices and second locking devices. Since the process of releasing the bite of the PC steel wire for locking by each conical wedge and releasing the lock is added, it is possible to quickly return to the work of transferring heavy goods after the lock is released.

According to the invention of claim 5,
In an apparatus for transferring heavy objects by a drive unit along a fixed base,
The installation beam provided on the heavy load is provided with a first lock device for locking the movement of the heavy load in one direction and a second lock for locking the reverse movement of the heavy load as a pair.
The first locking device and the second locking device are penetrated between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. Stretch the wire for PC steel for locking,
A conical wedge is provided in the first locking device which locks against the movement of the heavy load in one direction, and which is pressed with compressed air and bites into the wire for locking PC steel to lock the movement of the heavy load. ,
Within the second locking device which locks against the reverse movement of the weight, there is provided a conical wedge which is pressed with compressed air and which engages the wire for locking PC steel to lock the movement of the weight. Therefore, it has the following effects.
(1) The fixing operation and releasing operation can be made in a short time (approximately one minute each) as compared with the so-called lashing fixing method of fixing using a wire or a chain block in the conventional bridge axial direction . Therefore, when the transfer of the heavy load is temporarily stopped during the transfer of the heavy load such as the bridge girder, an emergency occurs during the transfer of the heavy load when transferring to another position after transferring the heavy load to the predetermined position. When you stop the transfer of heavy objects, etc., you can quickly and smoothly fix the heavy objects to a fixed base such as a delivery yard or a bridge pier, and work time under construction conditions with time constraints. Can secure and organize an efficient time schedule.
(2) In the event of an emergency such as occurrence of earthquake motion where the sway direction is not constant, it is possible to cope not only with the delivery direction of the bridge girder but also with the escape due to sway in the opposite direction to the delivery direction.
(3) In order to prevent collapse, fall, fall, and escape of the bridge girder due to the occurrence of a large-scale earthquake, a predetermined designed horizontal earthquake resistance can be secured.

According to the invention of claim 6,
In an apparatus for transferring heavy objects by a drive unit along a fixed base,
A plurality of pairs of a first locking device for locking the movement of the weight in one direction and a second locking device for locking the movement in the reverse direction of the weight are provided as a pair on the installation beam provided on the weight. ,
The first locking device and the second locking device are penetrated between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. Span multiple stranded PC steel strands for locking,
A center hole jack for attaching an equal initial tension to all the lock PC steel strands is attached to each anchor portion of the plurality of lock PC steel strands,
Compressed air is pushed into all the first locking devices that lock against one-way movement of the weight, and simultaneously bites on all the locking PC steel strands to lock the movement of the weight Provide a conical wedge,
Compressed air is pushed into all the second locking devices that lock against the reverse movement of the weight, and simultaneously bites on all the locking PC steel strands to lock the movement of the weight Since a conical wedge is provided, in particular when transferring a large-sized heavy load, secure and quick fixation by applying equal initial tension to a plurality of lock PC steel strands. Can.

According to the invention of claim 7,
The first locking device and the second locking device are conical wedges attached to the installation beam with the same configuration in the opposite direction and interlocked with compressed air to a common or separate locking PC steel strand. Therefore, it can be provided inexpensively by a combination of generalized devices.

According to the eighth aspect of the invention,
The first locking device and the second locking device are a locking device for releasing the lock by the conical wedge with pressure oil, and the compressed air for locking and locking the conical wedge to the wire for locking PC steel wire. Since the lock pushing device is provided, the fixing operation can be performed instantaneously, and the releasing operation can be performed safely.

According to the invention of claim 9,
The drive unit is constructed by extending a wire from a propelling PC steel between a front anchor portion provided on a fixed base forward of a heavy load and a propelling jack provided on a mounting beam provided on the heavy load. , The propulsion device and the lock device can be configured compactly.

According to the invention of claim 10,
Since antiseismic equipment is provided to prevent lateral vibration of the heavy object by facing both sides of the heavy material in the direction orthogonal to the transfer direction of the heavy object, earthquake movement in a direction different from the transfer direction of the heavy material is also assured And safely fix the weight.

According to the invention of claim 11,
A common propelling / locking PC steel strand is attached between the front anchor part and the rear anchor part for propelling and locking, a propelling jack is attached to the installation beam of the heavy load, and an installation beam different from this installation beam is attached Since the lock device 1 and the second lock device were attached to each other in the opposite direction and attached to the propulsion jack and the first lock device and the second lock device through the twisted steel wire of the propelling and locking PC steel, When the weight is light such as 100 t or less, an inexpensive and simple device can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS The fixing method of the heavy load according to this invention and its Example 1 are shown, (a) is a top view, (b) is a side view. It is sectional drawing of the locking method used for the fixing method of heavy goods of this invention, and its apparatus. The Example 2 of the fixing method of the heavy load by this invention and its apparatus is shown, (a) is a top view, (b) is a side view. It is sectional drawing of the conventional escape prevention apparatus.

According to the present invention, as shown in FIG. 1, in the method of transferring the weight 39 along the fixed base 33 by the drive unit,
The first locking device 43 for locking the movement of the weight 39 in one direction and the second locking device 44 for locking the movement of the weight 39 in the opposite direction are provided on the installation beam 41 provided on the weight 39. Attaching as one pair,
The first locking device 43 and the first locking device 43 are disposed between the front anchor portion 35 provided on the fixed base 33 forward of the transfer direction of the heavy load 39 and the rear anchor portion 36 provided on the rear fixed base 33. Securing and fixing the PC steel strand 37b for locking through the second locking device 44;
The conical wedge 64 in the first lock device 43 is pushed with compressed air against the movement of the weight 39 in one direction, and the movement of the weight 39 is locked by engaging the wire 37b from the lock PC steel. Process,
The conical wedge 64 in the second locking device 44 is pushed with compressed air against the movement of the weight 39 in the reverse direction, and the weight PC 39 is moved by engaging the penetrating PC steel wire wire 37b. And lock step.

In addition to the fixation method in the present invention, the following steps are added to release the fixation.
After the step of locking by the first locking device 43 and the second locking device 44, pressure oil is applied to the pressure oil ports 59 of the respective unlocking devices 52 in the first locking device 43 and the second locking device 44. The steps of feeding and releasing the locking of the PC steel strand 37b for locking by the respective conical wedges 64 are added.

The present invention is particularly suitable for the transfer of a large weight 39 along the fixed base 33 by the drive unit.
The first locking device 43 for locking the movement of the weight 39 in one direction and the second locking device 44 for locking the reverse movement of the weight 1 on the installation beam 41 provided on the weight 39 Attaching multiple pairs as a pair;
Between the front anchor portion 35 provided on the fixed base 33 forward of the transfer direction of the heavy load 39 and the rear anchor portion 36 provided on the rear fixed base 33, the plurality of first locking devices are provided in pairs. 43 and a step of stretching and fixing a plurality of lock PC steel strands 37b penetrating through the second lock device 43;
Applying equal initial tension to all of the plurality of locking PC steel strands 37b;
Conical wedges 64 in the plurality of pairs of first locking devices 43 are simultaneously pressed with compressed air against the unidirectional movement of the heavy load 39, and the heavy load is engaged with the respective lock PC steel wires 37b. Locking the movement of 39,
Conical wedges 64 in the plurality of pairs of second locking devices 44 are simultaneously pressed with compressed air against the reverse movement of the heavy load 39, and the heavy load is engaged with the respective locking PC steel wires 37b. Locking the movement of 33.

In addition to the fixation method in the present invention, the following steps are added to release the fixation.
After the step of locking by the plurality of pairs of first locking devices 43 and the second locking devices 44, the pressure oil of the respective unlocking devices 52 in the plurality of pairs of the first locking devices 43 and the second locking devices 44 At the same time, pressure oil is fed to the ports 59, and the steps of releasing the locking by releasing the locking of the PC steel strand 37b for locking by the respective conical wedges 64 are added.

The present invention relates to an apparatus for transferring a heavy load 39 along a fixed base 33 by a drive unit,
The first locking device 43 for locking the movement of the weight 39 in one direction and the second locking device 44 for locking the movement of the weight 39 in the opposite direction are provided on the installation beam 41 provided on the weight 39. Set as one pair,
The first locking device 43 and the first locking device 43 are disposed between the front anchor portion 35 provided on the fixed base 33 forward of the transfer direction of the heavy load 39 and the rear anchor portion 36 provided on the rear fixed base 33. The tensioning PC steel strand 37b is passed through the second locking device 44,
A cone which is pressed with compressed air into the first lock device 43 which locks against the movement of the weight 39 in one direction, and which engages with the wire 37b from the lock PC steel and locks the movement of the weight 39 Set up the wedges 64,
A cone which is pressed with compressed air into the second locking device 44 which locks against the reverse movement of the weight 39 and which engages the locking PC steel strand 37b to lock the movement of the weight 39 A shape wedge 64 is provided.

The invention relates in particular to a device for transferring a large weight 39 along a fixed base 33 by means of a drive unit,
The first locking device 43 for locking the movement of the weight 39 in one direction and the second locking device 44 for locking the movement of the weight 39 in the opposite direction are provided on the installation beam 41 provided on the weight 39. Provide multiple pairs as one pair,
The first locking device 43 and the first locking device 43 are disposed between the front anchor portion 35 provided on the fixed base 33 forward of the transfer direction of the heavy load 39 and the rear anchor portion 36 provided on the rear fixed base 33. Span a plurality of PC wire strands 37b for locking through two locking devices 44,
A center hole jack 70 for attaching an equal initial tension to all the lock PC steel strands 37b is attached to each anchor portion of the plurality of lock PC steel strands 37b,
Compressed air is pushed into all the first locking devices 43 that lock against movement of the weight 39 in one direction, and simultaneously bites onto the lock PC steel wire wire 37b to move the weight 39 Provide a conical wedge 64 to lock
The compressed air is pushed into all the second locking devices 44 that lock against the backward movement of the weight 39, and simultaneously engages the locking PC steel wire wire 37b to move the weight 39. A conical wedge 64 is provided to lock.

  The first locking device 43 and the second locking device 44 are attached to the installation beam 41 with the same configuration in the opposite direction to each other, and are compressed and fixed to the common or separate lock PC steel wire wire 37b by locking air And a conical wedge 64.

  The first locking device 43 and the second locking device 44 engage the unlocking device 52 for releasing the lock by the conical wedge 64 with pressure oil and bite the conical wedge 64 with compressed air with the wire 37b from the locking PC steel. And a lock push-in device 53 for locking and locking.

  The drive unit is a PC wire strand for propulsion between the front anchor portion 35 provided on the fixed base 33 on the front side in the transfer direction of the heavy load 39 and the propulsion jack 42 installed on the installation beam 41 provided on the heavy load 39. It will span 37b.

  An anti-seismic facility 45 is provided which faces the both sides of the weight 39 in the direction orthogonal to the transfer direction of the weight 39 to suppress lateral vibration of the weight 39.

  Attach a common propelling / locking PC steel stranded wire 37 between the front anchor portion 35 and the rear anchor portion 36 for propulsion and locking, attach the propulsion jack 42 to the installation beam 41a of the heavy load 39, and install the installation beam 41a. The first locking device 43 and the second locking device 44 are attached to the mounting beam 41b different from the above in a direction opposite to each other, and the propulsion jack 42, the first locking device 43 and the second locking device 44 are combined Attach it through PC steel strand 37.

A first embodiment of a method and apparatus for fixing heavy goods according to the present invention will be described based on the drawings.
In FIGS. 1 (a) and 1 (b), a delivery yard 33 is provided by a bridge foot 31 as a fixed base and a steel vent 32 in the vicinity of a road 30 where a heavy load 39 such as a bridge girder is to be erected. The rail 34 is laid on top of the plurality of carriages 38 placed on the rail 34, and a heavy load 39 to be transferred is placed on the carriage 38. A hand spreader 40 is connected to the tip of the heavy item 39.
The front anchors 35 are attached to the left and right two rows at the front end of the delivery yard 33, and the rear anchors 36 are attached to the left and right two rows corresponding to the front anchor 35 at the rear end. ing.

At the rear end of the heavy load 39, installation beams 41 are provided for each row of the anchor portions, and the lower end of the installation beams 41 is located below the heavy load 39 and is a rear anchor The propelling jack 42 is attached to the part 36 side. Further, on both sides of the propulsion jack 42, a first lock device 43 and a second lock device 44 of the same configuration, which will be described later, are attached in opposite directions to each other as a pair.
The front end portion of the propelling PC steel strand 37a is fixed to the center of the front anchor portion 35, and the rear end of the propelling PC steel strand 37a passes through the installation beam 41 and the propelling jack 42.

Further, on the both sides of the propelling PC steel strand 37a in the front anchor portion 35, the tip of the locking PC steel strand 37b for fixing a heavy load is fixed. The other ends of the two lock PC steel strands 37b pass through the second lock device 44, the installation beam 41 and the first lock device 43 sequentially, and further pass through the rear anchor portion 36. And the center hole jack 70 for applying an initial tension fixed to the rear anchor portion 36.
The same applies to one propelling PC steel strand 37a and two locking PC steel strands 37b provided in another row.
Assuming that the PC wire for locking for securing the heavy load has a load bearing capacity of about 100 t per wire, it can have a load bearing capacity of about 400 t with four. The number of strands 37b of the locking PC steel is selected by the load of the weight 39.

Above the delivery yard 33, a hydraulic pump 69 for tension application, an accumulator 48a for locking, an electric pump unit 48b and a control box 49 are provided.
One hydraulic pump 69 for adding an initial tension is connected to the four center hole jacks 70 for adding an initial tension passing through the lock PC steel strand 37b, and these four locks are connected. A uniform initial tension is applied to prevent the wire 37b from drooping downward from the PC steel.
The lock accumulator 48 a is connected to a pressure port 55 and a pressure port 54 described later of the first lock device 43 and the second lock device 44 via the lock time terminal 51.
The electric pump unit 48 b is connected to a pressure oil port 58 and a pressure oil port 59 described later of the first lock device 43 and the second lock device 44 via the lock release terminal 50.
The control box 49 is connected to the propulsion jack 42 via a propulsion electric pump 47.
On both sides of the bridge pier 31, antiseismic equipment 45 for anti-lateral run-out is installed extending to the side of the heavy load 39, and inside the seismic equipment 45, a filling 46 with a slight gap between the heavy load 39 and It is provided to prevent lateral shaking.

FIG. 2 shows a chuck fixing device of Japanese Patent No. 3587504 previously proposed by the present applicant, and this fixing device is used as the first locking device 43 and the second locking device 44 of the present invention, It is attached in the reverse direction. Since the first lock device 43 and the second lock device 44 have exactly the same configuration, the first lock device 43 will be described.
In FIG. 2, the first locking device 43 comprises a conical wedge 64, an unlocking device 52 on the small diameter end 64a side of the conical wedge 64, and a lock pushing device 53 on the large diameter end 64b side. ing. Compressed air is constantly supplied to the pressure port 54 of the unlocking device 52 and the pressure port 55 of the lock pushing device 53 by means of a pressure intensifier and is always supplied in a sealed state. In this state, the release rod 56 of the unlocking device 52 and the push rod 57 of the lock pushing device 53 are both lowered in FIG. 2, but the pressure oil port 58 from the pressure oil supply end 50 to release the lock device 43. When the hydraulic pressure is gradually applied to the pressure oil port 59, the push rod 57 in the lock pushing device 53 is raised by the hydraulic pressure received by the pressure receiving surface 60, and the release rod 56 in the unlocking device 52 is The hydraulic pressure is raised by the hydraulic pressure received, and the conical wedge 64 is pushed up against the coil spring 63 at its tip 62 and the lock device 43 is released. At this time, compressed air in the conduits such as the pressure port 54, the pressure port 55, and the pressure supply end 51 is compressed.

Next, oil pressure is applied from the pressure oil supply end 50 to the pressure oil port 58 and the pressure oil port 59 to release the lock device 43, and the pressure port 54 of the lock release device 52 and the pressure port of the lock pushing device 53. When the compressed air is constantly supplied to 55 and the compressed air in the pipeline is compressed, the hydraulic pressure at the pressure oil supply end 50 is opened with a solenoid valve or a manual valve to fix the lock device 43. Due to the presence of the compressed air, the release rod 56 of the unlocking device 52 is rapidly lowered by the compressed air received by the pressure receiving surface 65, and the push rod 57 of the lock pushing device 53 is received by the pressure receiving surface 66. Coupled with the elasticity of the compressed air coil spring 63, the conical wedge 64 is rapidly pushed in via the large diameter end 64b, and the conical wedge 64 is made of PC steel strand 3 for locking. b Instantly, and the first locking device 43 is locked arrived reliably bite.
The same applies to the second lock device 44.

The operation of the present invention according to the above configuration will be described.
In FIGS. 1 (a) and 1 (b), four propelling PC steel strands 37a stretched between the front anchor portion 35 and the rear anchor portion 36 are one hydraulic pump for tension application. A common hydraulic pressure from 69 to the four center hole jacks 70 for tensioning provides an even initial tension.
At the start of transfer of the heavy load 39, pressure oil is sent from the electric pump unit 48b to the pressure oil port 58 and the pressure oil port 59 via the lock release terminal 50, so the first lock device 43 and the first lock device 43 The conical wedge 64 of the second locking device 44 is unlocked so that the first locking device 43 and the second locking device 44 can move freely along the locking PC steel strand 37b.
In this state, when the propulsion jack 42 is driven, the installation beam 41 is pushed out while pulling in the wire 37a from the PC steel for propulsion, so the heavy load 39 placed on the carriage 38 is on the road 30 together with the hand lay 40. Promote.

Here, when trying to temporarily fix the heavy load 39 to the fixed base 33 such as the delivery yard, all the first locking devices 43 and the second locking devices 44 in the four locking PC steel strands 37b are used. , The supply of pressure oil from the electric pump unit 48b is stopped. Pressurized air is always sent to the pressure port 55 and the pressure port 54 from the lock accumulator 48a via the lock terminal 51. Therefore, the movement of the release rod 56 by the compressed air from the pressure port 54 and the pressing of the push rod 57 by the compressed air from the pressure port 55 combine with the elastic force of the coil spring 63 to rapidly push the conical wedge 64. , The conical wedges 64 of all the first locking device 43 and the second locking device 44 are engaged with the locking PC steel strand 37b to which an equal initial tension is applied, and the transfer of the heavy load 39 is stopped. . At the time of occurrence of an earthquake motion or the like, a wire 37b is used from a plurality of lock PC steels in order to secure the predetermined designed horizontal earthquake resistance.
In this manner, the heavy load 39 is reliably stopped by the first locking device 43 and the second locking device 44 regardless of whether the transfer direction is one direction or the reverse direction.
At the same time, the pressure oil of the propulsion electric pump 47 is stopped in accordance with a command from the control box 49, and the propulsion of all the propulsion jacks 42 is stopped.

  More specifically, the first locking device 43 and the second locking device 44 are mounted opposite to each other, and usually, hydraulic pressure from the pressure oil supply end 50 to the pressure oil port 58 and pressure oil port 59 is used. The push rod 57 in the lock pushing device 53 is moved in the unlocking direction by the hydraulic pressure received by the pressure receiving surface 60, and the release rod 56 in the unlocking device 52 is locked by the hydraulic pressure received by the pressure receiving surface 61. It moves in the release direction and pushes the conical wedge 64 against the coil spring 63 at its tip 62 to release the lock device 43.

The pressure oil from the electric pump unit 48 b is stopped to fix the heavy load 39, and the pressure port 54 of the lock release device 52 and the pressure port 55 of the lock pushing device 53 pass from the lock accumulator 48 a through the lock terminal 51. Because compressed air is always fed to the pump, compressed air in the pipeline is in a compressed state, and the pressure oil supply end 50 is hydraulically operated using a solenoid valve, a manual valve, etc. When opened, the release rod 56 of the unlocking device 52 is rapidly lowered by the compressed air received by the pressure receiving surface 65 due to the presence of the compressed air, and the push rod 57 of the lock pushing device 53 is a pressure receiving surface 66. Combined with the elastic force of the coil spring 63, and the large diameter end 64b side of the conical wedge 64 is rapidly pushed The line 37b in an instant than use PC steel, and, surely biting arrived stop.
Simultaneously with fixing of the heavy load 39, the propulsion operation of the propulsion jack 42 is stopped.
Regardless of whether the transfer direction of the heavy load 39 is forward or reverse, the heavy load 39 is reliably locked by the first locking device 43 and the second locking device 44 which are attached in opposite directions to each other.
Also, when an earthquake occurs suddenly, the shaking of the earthquake motion may also occur in the direction orthogonal to the transfer direction of the heavy load 39, etc. For such shaking, the bridge axial direction In addition to the lock, shaking is prevented by coming into contact with the stuffing 46 of the aseismatic equipment 45 such as a lateral vibration preventing wall provided on the bridge pier 31.

  After the conical wedge 64 is engaged with the lock PC steel strand 37b by the first lock device 43 and the second lock device 44, the lock is released from the electric pump unit 48b to release the lock. When pressure oil is sent to the pressure oil port 58 of the lock pushing device 53 and the pressure oil port 59 of the unlocking device 52 through the terminal 50, the conical wedges 43 and 44 are pushed out against the coil spring 63, and the lock is promptly performed. , And safely release.

In the example of FIGS. 1 (a) and 1 (b), the first locking device 43 and the second locking device 44 are attached in opposite directions to each other on both sides of the installation beam 41 in the same PC steel strand 37b for locking However, the present invention is not limited thereto, and two different locking PC steel strands 37b are bridged and fixed, and one locking PC steel strand 37b is a first locking device on one side of the installation beam 41 in the strand 37b. 43 may be attached, and the second lock device 44 may be attached to the other side of the installation beam 41 in the other lock PC steel strand 37b.
Further, the first lock device 43 and the second lock device 44 are not limited to the case where the same configuration is used in the opposite direction, and if the first lock device 43 and the second lock device 44 lock in the opposite direction, they have completely the same configuration. It does not have to be.
In the above embodiment, an example is shown in which four lock PC steel strands 37b are used for one heavy load 39, but the weight of the heavy load 39 and the load bearing strength of the lock PC steel strands 37b are used. It is possible to determine the number of PC wire strands 37b for lock taking into consideration. Further, when the load is biased depending on the shape of the heavy load 39, the wire for locking PC steel 37b can be arranged at unequal intervals.

  In the above embodiment, since the load of the heavy load 39 is large, the propelling PC steel strand 37a and the locking PC steel strand 37b are separate bodies, and a plurality of locking PC steel strands 37b are used. When the weight 39 is light weight such as 100 t or less, as shown in FIGS. 3A and 3B, the wire 37a for PC steel for propulsion and the wire 37b for PC steel for locking are commonly used for both propulsion and locking. It can be a PC steel strand 37. In this case, a propelling / locking PC steel strand 37 is attached to the front anchor portion 35 and the rear anchor portion 36, and the propelling jack 42 attached to the installation beam 41a of the heavy load 39 and the installation beam 41a Separately attach the first locking device 43 and the second locking device 44 to the mounting beam 41b separately attached to the heavy load 39, the propulsion jack 42, the first locking device 43 and the second locking device 44. The same propulsion / lock combination PC steel strand 37 is penetrated and attached to the same.

In the example of FIG. 3, unlike the first embodiment, the end of the propelling / locking PC steel stranding wire 37 penetrating the propelling jack 42 is fixed to the rear anchor portion 36. Also, as in the first embodiment, anti-seismic equipment 45 is attached to both sides of the bridge leg 31 so as to extend to the side of the heavy load 39, and between the heavy load 39 and the anti-vibration equipment 45 for lateral vibration prevention A padding 46 is provided to prevent lateral shaking with a slight clearance.
The stopping action in this example is similar to that of the first embodiment.

  In the above embodiment, in order to transfer the heavy load 39, the propelling PC steel strand 37a fixed to the front anchor portion 35 and the installation beam 41 attached to the heavy load 39 are propelled from behind using the propulsion jack 42. However, the method of propulsion of the heavy load 39 is not limited to this, and a method of pulling in with the wire 37 from the front of the propelling and locking PC steel from the front, and a method of transferring by extension and contraction of the propulsion jack attached to the rail 34 The drive unit may be transferred by another drive unit, such as a method of attaching and transferring the driving device to the carriage 38, and a method of transferring by the endless track band.

  DESCRIPTION OF SYMBOLS 10 ... PC steel wire strand, 11 ... upper support body, 12 ... lower support body, 13 ... heavy load, 14 ... heavy duty brake device, 15 ... grip jack, 16 ... transfer device, 17 ... chuck, 18 ... chuck , 19 ... 1st jack, 20 ... 2nd jack, 21 ... downslope, 22 ... hydraulic control panel, 23 ... jack side pressure transducer, 24 ... brake side pressure transducer, 25 ... brake side load measuring instrument, 26 ... Programmable controller, 27: control panel, 30: road, 31: bridge, 32: steel bent, 33: fixed base such as delivery yard, 34: rail, 35: front anchor portion, 36: rear anchor portion, 37a: propulsion For PC steel strand, 37b: PC steel strand for lock, 37: Propulsion / lock combined PC steel strand, 38: Bogie, 39: heavy load, 40: hand lay machine, 41, 41a, 4 b: installation beam, 42: propulsion jack, 43: first locking device, 44: second locking device, 45: anti-seismic equipment (for lateral vibration prevention), 46: padding, 47: electric pump for propulsion, 48a ... Accumulator for lock, 48b: Electric pump unit, 49: Control box, 50: Lock release terminal, 51: Lock terminal, 52: Lock release device, 53: Lock push device, 54: Pressure port, 55: Pressure port, 56 ... release rod, 57 ... push rod, 58 ... pressure oil port, 59 ... pressure oil port, 60 ... pressure receiving surface, 61 ... pressure receiving surface, 62 ... tip, 63 ... coil spring, 64 ... conical wedge, 64 a ... small diameter End, 64b: Large diameter end, 65: Pressure receiving surface, 66: Pressure receiving surface, 68: Mounting beam, 69: Hydraulic pump, 70: Center hole jack.

The present invention is safe temporary fixing operation and subsequent releasing operation to the fixed base of the weight of such a bridge girder, and relates fixing method and apparatus for quickly heavy that allow a child that is It is.

Generally, while stopping the transfer of the bridge girder (heavy load), in order to prevent the bridge girder from moving freely, it is temporarily fixed to a fixed base such as a delivery yard or a bridge pier. Between the base and the bridge girder, they are fixed in the bridge axial direction using wires or chain blocks. The operation of fixing the bridge girder to the fixed base by the lashing fixing and the fixing / releasing work each took approximately one hour or more .

The present invention is safe temporary fixing operation and subsequent releasing operation to the fixed base of the weight of such a bridge girder, and aims to provide an apparatus and method capable and this promptly performed is there.

According to the invention of claim 1,
In the method of transferring a heavy load by a drive unit along a fixed base,
Attaching a first locking device for locking the movement of the weight in one direction and a second locking device for locking the movement in the reverse direction of the weight as a pair on the installation beam provided on the weight; ,
The first locking device and the second locking device are penetrated between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. And fixing the wire from the PC steel for locking.
Pressing a conical wedge in the first locking device against compressed movement of the heavy object in one direction with compressed air to bite into a strand of the PC steel for locking to lock movement of the heavy material;
And pressing the conical wedge in the second locking device against the movement of the weight in the reverse direction with compressed air to bite the wire for locking PC steel and lock the movement of the weight. , Has the following effects.
(1) Fixing operation (approximately 1 minute) and release operation (approximately 10 to 15 minutes) in a short time as compared to the so-called lashing fixing method of fixing using a wire or a chain block in the conventional bridge axis direction Can be made possible. Therefore, for example, when temporarily stopping the transfer of a heavy load during transfer of a heavy load such as a bridge girder, the emergency during transfer of the heavy load when transferring to another position after transferring the heavy load to a predetermined position. There, for example, when stopping the transport of heavy occurs, rapid and kill safely yard feed weight was temporarily fixed to the fixed base, such as piers.
(2) In the event of an emergency, such as ground motion generated not shake direction is constant, in the construction site of the bridge girder, not only in the unwinding direction of the bridge girder, Ru also able to cope with escape due to the shaking of the feeding direction and the opposite direction.

According to the invention of claim 5,
In an apparatus for transferring heavy objects by a drive unit along a fixed base,
The installation beam provided on the heavy load is provided with a first lock device for locking the movement of the heavy load in one direction and a second lock for locking the reverse movement of the heavy load as a pair.
The first locking device and the second locking device are penetrated between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. Stretch the wire for PC steel for locking,
A conical wedge is provided in the first locking device which locks against the movement of the heavy load in one direction, and which is pressed with compressed air and bites into the wire for locking PC steel to lock the movement of the heavy load. ,
Within the second locking device which locks against the reverse movement of the weight, there is provided a conical wedge which is pressed with compressed air and which engages the wire for locking PC steel to lock the movement of the weight. Therefore, it has the following effects.
(1) Fastening operation (approximately 1 minute) and releasing operation (approximately 10 to 15 minutes) in a short time as compared with the so-called lashing fixing method of fixing using a wire or a chain block in the conventional bridge axial direction It can be enabled. Therefore, when the transfer of the heavy load is temporarily stopped during the transfer of the heavy load such as the bridge girder, an emergency occurs during the transfer of the heavy load when transferring to another position after transferring the heavy load to the predetermined position. and for example, when stopping the transport of heavy and rapid, and cut with smooth heavy a feed yard temporarily fixed to the fixed base, such as piers.
(2) In the event of an emergency, such as ground motion generated not shake direction is constant, in the construction site of the bridge girder, not only in the unwinding direction of the bridge girder, Ru also able to cope with escape due to the shaking of the feeding direction and the opposite direction.

Claims (11)

In the method of transferring a heavy load by a drive unit along a fixed base,
Attaching a first locking device for locking the movement of the weight in one direction and a second locking device for locking the movement in the reverse direction of the weight as a pair on the installation beam provided on the weight; ,
The first locking device and the second locking device are penetrated between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. And fixing the wire from the PC steel for locking.
Pressing a conical wedge in the first locking device against compressed movement of the heavy object in one direction with compressed air to bite into a strand of the PC steel for locking to lock movement of the heavy material;
And pressing the conical wedge in the second locking device against the movement of the weight in the reverse direction with compressed air to bite into the strand of the locking PC steel and lock the movement of the weight. How to fix heavyweights characterized by   After the step of locking by the first locking device and the second locking device, pressure oil is sent to the pressure oil ports of the respective unlocking devices in the first locking device and the second locking device, and the respective conical shapes are obtained. 2. The method according to claim 1, further comprising the step of releasing the lock by releasing the biting of the PC steel strand for locking by the wedge. In the method of transferring a heavy load by a drive unit along a fixed base,
A pair of first locking devices for locking the movement of the weight in one direction and a second locking device for locking the movement in the reverse direction of the weight on the installation beam provided on the weight Installation process,
The first locking device and the second locking device are provided in pairs for each pair between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. Stretching and fixing a plurality of locking PC steel strands passing through the locking device;
Applying equal initial tension to all of the plurality of locking PC steel strands;
Conical wedges in the plurality of pairs of first locking devices are simultaneously pressed with compressed air against unidirectional movement of the heavy load, and are engaged with the respective lock PC steel wires to lock the movement of the heavy load The process to
Conical wedges in the plurality of pairs of second locking devices are simultaneously pressed with compressed air against movement in the other direction of the heavy load, and are engaged with the respective strands of the lock PC steel to lock movement of the heavy load And a step of fixing the heavy load.   After the step of locking with the plurality of pairs of first locking devices and the second locking device, pressure oil is simultaneously applied to the pressure oil ports of the respective unlocking devices in the plurality of pairs of first locking devices and second locking devices. 4. A method according to claim 3, further comprising the steps of: feeding the steel sheet and releasing the bite of the PC steel strand from the wire for locking by each conical wedge to release the lock. In an apparatus for transferring heavy objects by a drive unit along a fixed base,
The installation beam provided on the heavy load is provided with a first lock device for locking the movement of the heavy load in one direction and a second lock for locking the reverse movement of the heavy load as a pair.
The first locking device and the second locking device are penetrated between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. Stretch the wire for PC steel for locking,
A conical wedge is provided in the first locking device which locks against the movement of the heavy load in one direction, and which is pressed with compressed air and bites into the wire for locking PC steel to lock the movement of the heavy load. ,
Within the second locking device which locks against the reverse movement of the weight, there is provided a conical wedge which is pressed with compressed air and which engages the wire for locking PC steel to lock the movement of the weight. And a fixing device for a heavy load. In an apparatus for transferring heavy objects by a drive unit along a fixed base,
A plurality of pairs of a first locking device for locking the movement of the weight in one direction and a second locking device for locking the movement in the reverse direction of the weight are provided as a pair on the installation beam provided on the weight. ,
The first locking device and the second locking device are penetrated between a front anchor portion provided on the fixed base forward of the transport direction of the heavy load and a rear anchor portion provided on the rear fixed base. Span multiple stranded PC steel strands for locking,
A center hole jack for attaching an equal initial tension to all the lock PC steel strands is attached to each anchor portion of the plurality of lock PC steel strands,
Compressed air is pushed into all the first locking devices that lock against one-way movement of the weight, and simultaneously bites on all the locking PC steel strands to lock the movement of the weight Provide a conical wedge,
Compressed air is pushed into all the second locking devices that lock against the reverse movement of the weight, and simultaneously bites on all the locking PC steel strands to lock the movement of the weight A fixing device for a heavy load characterized by being provided with a conical wedge.   The first locking device and the second locking device are conical wedges attached to the installation beam with the same configuration in the opposite direction and interlocked with compressed air to a common or separate locking PC steel strand. The device for fixing a heavy load according to claim 5 or 6, further comprising:   The first locking device and the second locking device are usually an unlocking device that uses pressure oil to release the lock by the conical wedge, and the compressed air bites the conical wedge onto the wire for locking PC steel. 8. A device according to claim 5, 6 or 7, characterized in that it comprises a locking push-in device for locking.   The drive unit is constructed by extending a wire for propelling PC steel between a front anchor portion provided on a fixed base forward of a heavy load and a propelling jack provided on a mounting beam provided on the heavy load. 9. A device according to claim 5, 6, 7 or 8, characterized in that:   The earthquake-proof installation which suppressed the lateral vibration of the said heavy load is provided, facing the both sides of the said heavy load in the direction orthogonal to the transfer direction of the heavy load. Fastening device for heavy goods as described.   A common propelling / locking PC steel strand is attached between the front anchor part and the rear anchor part for propelling and locking, a propelling jack is attached to the installation beam of the heavy load, and an installation beam different from this installation beam is attached The first locking device and the second locking device are attached to each other in a reverse direction, and the thrusting / locking PC steel is attached to the propulsion jack and the first locking device and the second locking device through the twisted wire. The fixing device for a heavy load according to claim 5, characterized in that.

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