JP2016130179A - Harbor loading equipment and base insulation method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harbor loading equipment and a base insulation method therefor such that if an earthquake takes place, gripping force of a blast-time safety device which prevents a runaway is released to prevent wheels from floating.SOLUTION: A blast-time safety device 20 is coupled to a lower end part of a slide arm 81 having a width direction x along a travel direction x of harbor loading equipment 1 extended in a vertical direction z, a slide member 82 capable of sliding along the width direction x of the upper end part of the slide arm 81 is arranged between the upper end part of the slide arm 81 and leg structures 2a, 2b or travel devices 4a, 4b, and a neutral position holding mechanism 90 fixing the slide member 82 at the neutral position CP provided to the slide arm 81 is arranged at the slide member 82.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a port cargo handling device and a seismic isolation method for preventing the lifting of a wheel of a port cargo handling device without transmitting the gripping force of a gust escape prevention device to the port cargo handling device when an earthquake occurs.

  In general, for quay cranes that carry out cargo handling work in harbors, rail clamps are used as a device to prevent runaway during gusts so that they do not run away on the running rail when the work is stopped or when the work is closed at night. (For example, refer to Patent Document 1).

  Here, the crane provided with the conventional rail clamp is demonstrated, referring FIG. Here, FIG. 17 shows the lower structure of the crane 1X and also shows one of the sea side and the land side. The lower structure of the crane 1X includes legs 2a and 2b that support the upper structure, a sill beam 3 that joins the legs 2a and 2b, and traveling devices 4a and 4b that travel on a traveling rail R laid on the quay G.

  The crane 1X is connected to the sill beam 3 and the rail clamp 20 by a connecting portion 10X. The connecting portion 10X includes a sill beam column (support) 11X and a connecting pin 12X. The connecting pin 12X connects the connecting portion 23 of the rail clamp 20 and the sill beam column 11X. The rail clamp 20 includes a clamp 21 that operates a mechanism in the apparatus and grips the traveling rail R, and a traveling wheel 22 with a rail guide (with a collar).

  The rail clamp 20 also has a role as a countermeasure against a gust so that the work can be performed even if the quay crane receives the gust, and further, the crane 1X does not escape even if the gust is received.

  For example, when the crane 1X receives a gust of about 35 m / s from the x direction which is the traveling direction of the crane 1X, a load of about 50 t is applied in the x direction, and the load is applied to the sea side leg and the land side leg. And is supported by a rail clamp 20 or a brake of the traveling device 4a. Among them, one rail clamp device 20 supports a load of about 20 t.

  However, when an earthquake occurs while the crane 1X is operating or stopped, a large horizontal force is applied to the upper portion of the crane 1X due to the force of gripping the traveling rail R of the rail clamp 20 (the force of gripping a load of about 20 t). As a result, the wheels of the traveling devices 4a and 4b of the crane 1X are lifted from the traveling rail R, and there is a possibility that the wheel may be removed or damaged.

  There are seismic isolation cranes equipped with various seismic isolation devices to absorb the horizontal force that acts when the earthquake occurs. This seismic isolation crane is effective in the transverse direction of the seismic isolation crane and the shaking in the traveling direction. However, if a rail clamp is provided in order to prevent the seismic isolation crane from running away, there arises a problem that the aforementioned wheel removal or damage occurs.

  Therefore, an idle connection type rail clamp device and a vibration isolation crane truck and a floating connection portion for connecting these distances within a predetermined distance range so as to be able to approach and separate, and the distance is the predetermined distance. There is a device that has a configuration in which a shear pin that is constrained and held at a fixed position within an interval and has a set shear strength is provided, and can safely absorb external force vibration in the extending direction of the rail ( For example, see Patent Document 2).

In this device, when an earthquake occurs, the shear pin is broken, and the seismic isolation crane performs an approaching and separating operation in the rail extending direction to absorb the vibration. However, this apparatus has a problem that it takes a long time to recover the shear pin that has been broken after the earthquake, and a problem that the shear pin is broken even by a gust due to the difficulty in controlling the breaking load of the shear pin.

  In addition, the standards of earthquake resistance for equipment working in harbors are high. A structure capable of withstanding an earthquake amplitude time of about 300 seconds and an earthquake amplitude of ± 300 mm or more is required. Since this applies to the traveling direction of the crane, it is necessary to cope with the case where the seismic wave has a long period and the energy absorption time is long. For this reason, the configuration of the apparatus described in Patent Document 2 has a problem that it cannot withstand the amplitude of long-period and long-period earthquakes.

Japanese Patent Laid-Open No. 6-72690 Japanese Patent Laid-Open No. 2002-60181

  The present invention has been made in view of the above problems, and its purpose is when the vehicle is stopped and working, when it is closed at night, or when it is receiving a gust of wind during a storm, To provide a harbor handling equipment and a seismic isolation method capable of preventing the lifting of a wheel by escaping the gripping force of a runaway prevention device that prevents the harbor handling equipment from running away when an earthquake occurs.

The port cargo handling equipment of the present invention for solving the above object includes a leg structure, a traveling device installed below the leg structure and traveling on a rail, and the leg structure or the traveling device. A port cargo handling device that is connected via a connecting portion and that moves on the rail, and that includes a device for preventing escaping due to a gust of wind. The width of the upper end portion of the slide arm is arranged between the slide arm extending in the vertical direction with the travel direction of the slide as the width direction, and the leg structure or the travel device and the upper end portion of the slide arm. A slide member configured to be slidable along a direction, and a neutral position holding mechanism that is disposed on the slide member and fixes the slide member to a neutral position provided on the slide arm Characterized in that it comprises a.

  According to this configuration, when an earthquake occurs, the harbor cargo handling equipment shakes due to the amplitude, and the slide member can reciprocate in the longitudinal direction or the width direction of the slide arm along with the shake. Therefore, it is possible to release the gripping force of the escaping prevention device during gust in the traveling direction, and the gripping force of the escaping prevention device during gust is not transmitted to the harbor cargo handling equipment, so that the lifting of the wheels of the traveling equipment of the harbor cargo handling equipment can be prevented. . In addition, it is possible to maintain the state where the gust escape prevention device and the port cargo handling equipment are always connected, and to maintain the state where the gust escape prevention device is self-supporting even after an earthquake occurs. Therefore, recovery after an earthquake can be easily performed.

  Note that the gust runaway prevention device here refers to gripping the rail that is the travel path of harbor cargo handling equipment when working while stopping traveling, when it is closed at night, or when it receives a gust of wind. It is a device that prevents the port cargo handling equipment from running away.

The slide member may have a space inside, and the upper end portion of the slide arm and the neutral position holding mechanism may be arranged in this space.

At least two of the first moving pin hole and the second moving pin hole, and the first moving pin hole and the second pin hole, which are long holes whose longitudinal direction is the width direction at the upper end of the slide arm.
A moving pin that is inserted through each of the pins and fixed to the slide member can be provided.

It can be set as the structure provided with the urging | biasing apparatus which urges | biases the upper end part of a slide arm to the width direction.

  In order to solve the above-mentioned object, the seismic isolation method for a port cargo handling apparatus according to the present invention includes a leg structure, a traveling device installed below the leg structure and traveling on a rail, and the leg structure or In a seismic isolation method for a port cargo handling device, which is connected to the travel device via a connecting portion and moves on the rail, the port cargo handling device includes a traveling direction of the port cargo handling device that is extended vertically. A slide member that is slidable along the width direction of the upper end portion of the slide arm is connected to the lower end portion of the slide arm having a width direction of the slide arm, and the upper end portion of the slide arm And a neutral position holding mechanism for fixing the slide member to a neutral position provided on the slide arm, and arranging the slide member between the leg structure or the traveling device, When none, and wherein said slide member is slid along the width direction of the cargo handling equipment with said slide arm.

  According to this method, the slide member does not reciprocate the slide arm, and the gripping force of the gust escape prevention device is not transmitted to the harbor cargo handling equipment. Therefore, the wheel can move in the traveling direction at the time of an earthquake, and the lifting of the wheel can be prevented.

A first moving pin hole and a second moving pin hole, which are long holes whose longitudinal direction is the width direction, are formed at the upper end of the slide arm, and each of the first moving pin hole and the second moving pin hole is formed. At least two moving pins are inserted into the sliding member, the moving pin is fixed to the slide member, and an urging device for urging the upper end of the slide arm in the width direction is installed, and the neutral position provided on the slide arm is set. It can be configured to hold the slide arm.

  According to the present invention, when working while stopping traveling, when a gust of wind occurs due to a gust of wind during a holiday such as a nighttime, or during a storm, the escaping during a gust of wind that prevents the harbor cargo handling equipment from escaping The gripping force of the prevention device can be released and the wheel can be prevented from lifting.

It is the front view which showed the lower structure of the seismic isolation crane of 1st Embodiment which concerns on this invention. It is sectional drawing which showed II-II of FIG. It is the side view which showed III-III of FIG. It is the enlarged view which showed a part of FIG. It is the schematic which showed the control apparatus of the seismic isolation crane of 1st Embodiment which concerns on this invention. It is sectional drawing which showed VI-VI of FIG. It is the flowchart which showed the seismic isolation method of the seismic isolation crane of 1st Embodiment which concerns on this invention. It is the front view which showed operation | movement of the seismic isolation crane of 1st Embodiment which concerns on this invention. It is the side view which showed operation | movement of the seismic isolation crane of 1st Embodiment which concerns on this invention. It is the figure which showed the lower structure of the seismic isolation crane of the 2nd Embodiment of this invention, (a) shows a front view, (b) shows sectional drawing shown by bb of (a). (C) shows a cross-sectional view taken along line cc in (a), and (d) shows a rear view taken along line dd in (a). It is the front view which showed operation | movement of the seismic isolation crane of 2nd Embodiment which concerns on this invention. It is the front view which showed the lower structure of the seismic isolation crane of 3rd Embodiment which concerns on this invention. It is the front view which showed operation | movement of the seismic isolation crane of 3rd Embodiment which concerns on this invention. It is the front view which showed the lower structure of the seismic isolation crane of 4th Embodiment which concerns on this invention. It is the front view which showed the lower structure of the seismic isolation crane of 5th Embodiment which concerns on this invention. It is the front view which showed the lower structure of the seismic isolation crane of 6th Embodiment which concerns on this invention. It is the front view which showed the escape prevention mechanism of the conventional seismic isolation crane.

  Hereinafter, harbor handling equipment and seismic isolation methods according to first, second, third, fourth, fifth, and sixth embodiments of the present invention will be described with reference to the drawings. In addition, about the structure similar to FIG. 17, the same code | symbol is used and the description is abbreviate | omitted.

  Embodiments of the present invention include bridge cranes, gate-type yard cranes, Goliath cranes, mobile jib cranes and the like used in harbors such as container terminals used in harbors such as container terminals as harbor handling equipment. Can be applied to. Preferably, it is effective when applied to a device provided with a seismic isolation device so as to absorb the vibration of the earthquake in the harbor handling equipment. Therefore, it demonstrates as a seismic isolation crane in description of embodiment.

  In addition, although a rail clamp is used as a device for preventing a gust runaway, a rail clamp of a known technique can be used as the rail clamp. For example, a wedge shape that clamps the clamping jaws on both sides of the running rail with a holder, or a clamp arm formed in a bowl shape and an elastic body are combined, and the elastic body is moved closer to and away from the clamp arm with a hydraulic cylinder. Thus, a pressing mold that grips or opens the traveling rail can be used. Further, instead of the rail clamp, an anchor pin may be driven into the quay to prevent runaway. Furthermore, although the carriage-type rail clamp provided with the traveling wheels is used, it may not be a carriage type as long as it can move on the traveling rail.

  First, a port cargo handling apparatus according to a first embodiment of the present invention will be described with reference to FIGS. Here, the traveling direction of the seismic isolation crane (harbor handling equipment) 1 is the x direction, the transverse direction of the seismic isolation crane 1 is the y direction, and the vertical direction is the z direction. As shown in FIG. 1, the lower structure of the seismic isolation crane 1 includes a seismic isolation connecting portion 10, a rail clamp (a gust-induced escape prevention device) 20, a neutral position holding mechanism 30, and a guide roller (nipping device) 40. .

  The seismic isolation connecting part 10 connects the sill beam 3 and the rail clamp 20, and connects the rail clamp 20 and the rail guide 30. The seismic isolation connecting portion 10 includes a slide arm 11, a slide member 12, a joint portion 13, and a sill beam column (post) 14.

  The slide arm 11 has a longitudinal direction in the x direction, one end of which is fixed to the rail clamp 20 and the other end is joined to the guide roller 40. The length of the slide arm 11 in the longitudinal direction has a length corresponding to the stroke necessary for the seismic isolation of the seismic isolation crane 1, preferably 500 mm to 2000 mm, more preferably 1200 mm to 1500 mm. Have a length.

  As shown in FIG. 2, the slide member 12 provided so as to be able to reciprocate on the slide arm 11 is formed in a hollow shape so that the slide arm 11 can be inserted, and an upper surface 12 a and a lower surface are formed so as to surround the slide arm 11. 12b and side surfaces 12c and 12d. Further, the upper surface 12 a is joined to the sill beam column 14 via the joint portion 13, and can move on the slide arm 11 integrally with the seismic isolation crane 1.

  By forming the slide member 12 so as to surround the slide arm 11, it is possible to prevent the slide member 12 from being detached from the slide arm 11 even when subjected to a swing in the y direction or the z direction.

  The slide arm 11 and the slide member 12 are not limited to the above configuration as long as the slide member 12 can reciprocate on the slide arm.

  The sill beam column 14 includes a slide member joining portion 14a, a first turning portion 14b, a main column 14c, a second turning portion 14d, and a sill beam joining portion 14e. The first rotating portion 14b and the second rotating portion 14d have a rotation axis direction in the x direction. As the seismic isolation mechanism, here, the sill beam column 14 is formed as a parallel link mechanism in which two similar structures are arranged in the y direction as shown in FIG.

  The sill beam column 14 is not limited to the above-described configuration as long as it can absorb at least the vibration in the y direction, which is the transverse direction of the seismic isolation crane 1. For example, a known seismic isolation mechanism using laminated rubber may be provided instead of the parallel link mechanism.

  As shown in FIG. 2, a guide shoe 15 is provided between the slide arm 11 and the slide member 12. The guide shoe 15 is provided between the upper surface 12 a of the slide member 12 and the slide arm 11, and between the side surfaces 12 c and 12 d of the slide member 12 and the slide arm 11.

  The slide shoe 15 reduces the frictional resistance between the slide arm 11 and the slide member 12, makes it easier for the slide member 12 to reciprocate on the slide arm 11, It has a role of guiding in the x direction which is the traveling direction. As this guide shoe 15, a guide shoe of a well-known technique can be used, and the arrangement location and the number of arrangement are not limited.

  According to the above configuration, by providing the seismic isolation connecting portion 10 having seismic isolation effect in the x direction and the y direction in the connection between the rail clamp 20 and the sill beam 3 of the seismic isolation crane 1, the rail clamp is provided when an earthquake occurs. Twenty gripping forces can be released.

  More specifically, when the seismic isolation crane 1 receives the amplitude of the earthquake in the x direction, the slide member 12 connected via the sill beam 3 and the sill beam column 14 moves on the slide arm 11 in the longitudinal direction of the slide arm 11. That is, it can reciprocate in the x direction which is the traveling direction of the seismic isolation crane 1 according to the amplitude.

  Further, when the seismic isolation crane 1 receives the amplitude of the earthquake in the y direction, the sill beam column 14 having the parallel link mechanism swings over the traveling rail R in accordance with the amplitude. Accordingly, since the seismic isolation crane 1 swings with the amplitude of the earthquake, it is possible to prevent the wheels of the base isolation crane 1 from being lifted due to the amplitude of the earthquake.

  In addition, the rail clamp 20 and the seismic isolation crane 1 can always be kept connected, and the rail clamp 20 can be kept independent after the earthquake. Therefore, recovery after an earthquake can be easily performed.

  In order to reciprocate the slide member 12 on the slide arm 11 in accordance with the amplitude of the earthquake, as shown in FIG. 4, the seismic isolation crane 1 is provided with a neutral position CP of the amplitude at the time of the earthquake on the slide arm 11, A neutral position holding mechanism 30 for fixing the slide member 12 to the neutral position CP is provided. The neutral position holding mechanism 30 includes a fixing pin 31, a fixing pin hole 32, a hydraulic jack (insertion / extraction device) 33, and a control device 34. The neutral position holding mechanism 30 connects the sill beam 3 and the rail clamp 20 by fixing the slide arm 11 and the slide member 12 together when the fixing pin 31 is inserted into the fixing pin hole 32.

  The neutral position CP is a neutral position of the amplitude at the time of the earthquake. When an earthquake occurs, the slide member 12 reciprocates left and right in the x direction around the neutral position CP. The neutral position CP is preferably provided approximately in the middle of the slide arm 11 in the longitudinal direction, but the position to be provided is not limited as long as the slide member 12 can reciprocate around the neutral position CP according to the amplitude of the earthquake.

  The fixing pin hole 32 includes a first through hole 32 a provided in the slide arm 11 and a second through hole 32 b provided in the slide member 12. The first through hole 32a is provided at the neutral position CP. The fixing pin 31 is formed longer than the length of the fixing pin hole 32 in the longitudinal direction. The fixing pin 31 and the fixing pin hole 32 need only be able to be inserted and removed, and the shape and size of the fixing pin hole 32 are formed in accordance with the fixing pin 31. For example, if the fixing pin 31 is formed in a cylindrical shape, the cross-sectional shape of the fixing pin hole 32 is circular. This shape may be a polygon.

  The hydraulic jack 33 joined to one end of the fixing pin 31 only needs to be able to insert and remove the fixing pin 31 in the z direction, and a hydraulic jack of a known technique can be used. In place of the hydraulic jack 33, a hydraulic cylinder, an electric jack, an electric cylinder, or the like may be used. Moreover, you may comprise so that the fixing pin 31 may be dropped below instead of pulling upward at the time of the occurrence of an earthquake. In addition, the fixing pin 31, the fixing pin hole 32, and the hydraulic jack 33 are not limited to the above-described configuration, and the fixing pin 31 may be inserted and removed in the y direction.

  As shown in FIG. 5, the control device 34 includes a receiving unit 34 a that can receive stop information i <b> 1, weather information i <b> 2, and earthquake early warning i <b> 3, an anemometer 34 b that detects the strength of wind received by the seismic isolation crane 1, and an earthquake A total 34c is provided. The stop information i1 is information indicating whether the traveling of the seismic isolation crane 1 has stopped. The weather information i2 is information such as wind direction and wind force.

  The control device 34 has means for determining whether the seismic isolation crane 1 stops traveling and performs work or is closed (including nighttime) based on the stop information i1. Further, as a gust detection means, a means for calculating the wind force received by the seismic isolation crane 1 based on the weather information i2 and the information of the anemometer 34b, and whether or not the seismic isolation crane 1 runs away by the wind force is determined. Means. In addition, as an earthquake detection means, there is a means for judging the amplitude due to the earthquake that the seismic isolation crane 1 receives based on the information of the earthquake early warning i3 and the seismometer 34c.

  Further, the control device 34 includes the stop information i1 described above, means for causing the rail clamp 20 to grip the traveling rail R from the gust detection means, and means for inserting / removing the fixing pin 31 into / from the fixing pin hole 32 from the earthquake detection means. .

According to the above configuration, by inserting the fixing pin 31 into the fixing pin hole 32, the slide member 12 can be fixed to the neutral position CP of the amplitude at the time of earthquake provided in the slide arm 11. By pulling out the fixing pin 31 from the fixing pin hole 32 when an earthquake occurs, the slide member 12 can be reciprocated on the slide arm 11 according to the amplitude of the earthquake.

  Further, since the fixing pin 31 can be easily inserted and removed from the fixing pin hole 32 by the insertion / removal device 33, the slide member 12 is reciprocated only when an earthquake occurs, and in other cases, the neutral position CP of the slide arm 11 is obtained. Can be fixed to.

  Thereby, when the seismic isolation crane 1 receives a gust due to a storm or the like, the seismic isolation crane 1 can be prevented from running away by the gripping force of the rail clamp 20. Further, when the seismic isolation crane 1 receives the amplitude due to the earthquake, the lifting force of the wheels of the seismic isolation crane 1 can be prevented by releasing the gripping force of the rail clamp 20.

  As illustrated in FIG. 6, the guide roller 40 includes a guide wheel 41, a joint portion 42, and an axle 43. The guide wheel 41 includes flanges 41a and 41b so as to sandwich both sides of the traveling rail R. When a horizontal force in the y direction, which is a direction perpendicular to the traveling rail R, acts, the rail clamp 20 may be detached from the traveling rail R due to the moment acting on the slide arm 11. According to the above configuration, since the traveling rail R is held by the flanges 41a and 41b of the guide wheel 41, the rail clamp 20 is prevented from being detached from the traveling rail R even if a horizontal force in the y direction is applied. be able to.

  Next, regarding the seismic isolation method S10 of the seismic isolation crane 1 according to the first embodiment of the present invention, refer to the flowchart shown in FIG. 7 and FIGS. 8 and 9 showing the operation of the seismic isolation crane 1. While explaining. The state of the fixed pin 31 is a state where it is inserted into the fixed pin hole 32 when the seismic isolated crane 1 is working and closed, and no earthquake occurs. The clamp 20 is connected in a state where the slide member 12 is fixed on the slide arm 11.

  First, the control apparatus 34 performs step S11 which judges the operating condition of the seismic isolation crane 1. FIG. In step S11, based on the stop information i1, the operating status of the seismic isolation crane 1 is determined. When the operation is stopped and the work is performed, or when the work is closed at night or the like, the process proceeds to step S14.

  When the seismic isolation crane 1 is traveling or is operating without stopping traveling, the next step, gust detection means of the control device 34, determines whether or not the seismic isolation crane 1 escapes due to wind power. Do. The control device 34 calculates the wind force for the seismic isolation crane 1 based on the weather information i2 and the anemometer 34b. It is determined whether or not the seismic isolation crane 1 runs away from the calculated wind force. Next, if it is determined that the vehicle will run away due to wind power, step S13 is performed to stop the traveling devices 4a and 4b.

  Next, step S14 in which the rail clamp 20 grips the traveling rail R is performed. At this time, even if the seismic isolation crane 1 receives a gust due to a storm or the like, since the rail clamp 20 holds the traveling rail R, the seismic isolation crane 1 can be prevented from running away by the gripping force.

  Next, step S15 in which the earthquake detection means receives the earthquake early warning i3 is performed. When the earthquake bulletin i3 is received by the receiving unit 34a, next, step S16 is performed to determine whether or not the predicted seismic intensity of the earthquake is large. Here, if it is determined that the predicted seismic intensity is large, the process proceeds to step S19. If it is determined that the predicted seismic intensity is not large, next, the earthquake detection means performs step S17 in which the shaking of the seismometer 34c is detected. If the seismometer 34c detects a shake, next, step S18 which judges whether the seismic width by an earthquake is large is performed. Here, if it is determined that the magnitude of the earthquake is not large, the process ends.

  If it is determined in step S16 that the predicted seismic intensity is large, or if it is determined in step S18 that the seismic intensity due to the earthquake is large, then whether or not the fixing pin 31 is inserted into the fixing pin hole 32 is determined. Step S19 for determination is performed. Next, the control device 34 operates the hydraulic jack 33 to perform step S <b> 20 in which the fixing pin 31 is pulled out from the fixing pin hole 32. When the fixing pin 31 is pulled out from the fixing pin hole 32, the fixing of the slide member 12 is released, and the slide member 12 is subjected to the horizontal force in the x direction received by the seismic isolation crane 1 as shown in FIG. Performs step S21 of reciprocating on the slide arm 11.

  Here, the stop position of the rail clamp 20 is SP, and the stroke of the slide member from the neutral position CP of the slide arm 11 is ± L. Even if it receives an amplitude due to an earthquake, the rail clamp 20 holds the traveling rail R, so the stop position SP does not change. The slide member 12 reciprocates on the slide arm 11 with the amplitude in the x direction received by the seismic isolation crane 1 around the neutral position CP. This reciprocating stroke ± L is a stroke required for seismic isolation, and is preferably ± 300 mm to ± 1000 mm.

  Further, as shown in FIG. 9, for the amplitude in the y direction, which is the transverse direction, step S22 in which the sill beam column 14 of the parallel link mechanism swings on the traveling rail R is performed. When the sill beam column 14 swings, a large force is applied to one end of the slide arm 11 on the opposite side of the rail clamp 20 due to the moment of the slide arm 11, but the flanges 41a and 41b of the guide roller 40 act as travel rails. Since R is held, the force can be received. Therefore, it is possible to prevent the rail clamp 20 from acting on the rail clamp 20 and to prevent the rail clamp 20 from coming off the traveling rail R.

  Next, the process returns from step S22 to step S17. While the amplitude of the earthquake is large, steps S18 to S22 are repeated.

  If it is determined in step S18 that the earthquake amplitude is not large, that is, it is determined that the earthquake amplitude has fallen, step S23 for releasing the grip of the rail clamp 20 from the traveling rail R is performed. Next, the rail clamp 20 is moved, and step S24 for aligning the positions of the first through hole 32a and the second through hole 32b is performed. When step S24 is completed, step S25 of inserting the fixing pin 31 into the fixing pin hole 32 is performed, and the process is completed.

  According to the seismic isolation method S10 described above, the rail clamp 20 holds the traveling rail R even if the seismic isolation crane 1 receives a gust of wind when the vehicle is stopped to work or is stopped at night. Therefore, the seismic isolation crane 1 does not run away. When an earthquake occurs, the slide member 12 is moved on the slide arm 11 in the x direction that is the traveling direction of the seismic isolation crane 1 by pulling out the fixing pin 31 of the seismic isolation connecting portion 10 from the fixing pin hole 32. You can make a round trip. Thereby, at the time of the occurrence of an earthquake, the gripping force of the rail clamp 20 is not transmitted to the seismic isolation crane 1, and it is possible to prevent the wheel from being removed or broken due to the amplitude of the earthquake. As described above, in the present invention, it is possible to realize a mechanism of the rail clamp 20 that operates in a gust and opens in an earthquake.

  Further, since the amplitude in the traveling direction of the seismic isolation crane 1 can be absorbed by the reciprocating motion of the slide member 12 and the amplitude in the transverse direction of the seismic isolation crane 1 can be absorbed by the sill beam column 14 of the parallel link mechanism, the seismic isolation is possible. Can be improved. In addition, it is possible to prevent the rail clamp 20 from coming off by reducing the horizontal force applied to the rail clamp 20 by the guide roller 40 holding the traveling rail R against the transverse amplitude. Can do.

In addition, the seismic isolation effect can be obtained without using a shear pin (shear pin) that has been conventionally used. Thereby, the post-earthquake recovery can be performed more easily than in the past. Furthermore, due to the problem of controlling the shear load, the shear pin will not break due to the influence of a storm or the like.

  Next, the seismic isolation crane 5 according to the second embodiment of the present invention will be described with reference to FIG. As shown in FIG. 10A, the seismic isolation crane 5 includes a rail clamp 20, a seismic isolation coupling portion 50, a neutral position holding mechanism 60, and a rail guide 70. The seismic isolation joint 50 between the sill beam 3 and the rail clamp 20 of the seismic isolation crane 5 includes a slide arm 51, a slide member 52, and a sill beam column 53. Since the configuration is the same as that described above except that the inside of the slide arm 51 is formed in a hollow shape, the description thereof is omitted.

  As shown in FIG. 10B, the neutral position holding mechanism 60 includes a moving pin 61, a moving pin hole 62, springs (elastic bodies) 63a and 63b, adjusting bolts 64a and 64b, and adjusting nuts 65a and 65b. Is provided. The moving pin 61 is formed to have a longitudinal direction in the y direction, which is a direction orthogonal to the longitudinal direction of the slide arm 51, and both ends of the moving pin 61 are as shown in FIGS. 10B and 10C. The side surfaces 52c and 52d of the slide member 52 are joined.

  The moving pin hole 62 is formed so as to open in the x direction, which is the longitudinal direction of the slide arm 51, and to penetrate the slide arm 51. The length of the long hole moving pin hole 62 is the length of the stroke ± L necessary for seismic isolation with the neutral position CP as the center. The moving pin 61 is inserted into the moving pin hole 62.

  The moving pin 61 and the moving pin hole 62 are not limited to the above configuration as long as the moving pin 61 can move the moving pin hole 62 in the longitudinal direction of the slide arm 51. For example, a moving pin having a longitudinal direction in the z direction and a moving pin hole penetrating the slide arm 51 in the z direction may be used.

  As shown in FIG. 10B, the springs 63 a and 63 b are respectively provided on both sides of the moving pin 61 inside the slide arm 51 so as to urge the moving pin 61 in the traveling direction of the seismic isolation crane 1. Deploy. Both ends of the springs 63a and 63b are joined to the adjusting bolts 64a and 64b, respectively. The spring force of the springs 63a and 63b is set to be equal to or greater than the running resistance of the rail clamp 20 so that the moving pin 61 is always held at the neutral position CP of the amplitude at the time of the earthquake by the biasing force of the springs 63a and 63b.

  The adjusting mechanism including the adjusting bolts 64a and 64b and the adjusting nuts 65a and 65b adjusts the distance between the movable pin 61 and the inner wall of the slide arm 51 formed in a hollow shape and the heads of the adjusting bolts 64a and 64b. By adjusting with the nuts 65a and 65b, the biasing force of the springs 63a and 63b is adjusted. As described above, the spring force of the springs 63a and 63b is set so as to hold the moving pin 61 at the neutral position CP. However, if the balance is slightly lost, the position will be shifted. Thus, the moving pin 61 can be held at the neutral position CP.

  The biasing device including the springs 63a and 63b, the adjusting bolts 64a and 64b, and the adjusting nuts 65a and 65b is not limited to the above configuration as long as the moving pin 61 can be held at the neutral position CP. For example, an electric actuator can be used as the adjusting mechanism.

  As illustrated in FIG. 10D, the rail guide 70 is formed in a concave shape so as to cover the traveling rail R, and holds the traveling rail R therebetween. The rail guide 70 is not limited to the above configuration as long as it can move on the traveling rail R during traveling and can hold both sides of the traveling rail R.

  According to said structure, since the slide member 52 can reciprocate on the slide arm 51 according to the amplitude of an earthquake similarly to the above-mentioned, the holding force of the rail clamp 20 can be released. Further, a moving pin 61 that can reciprocate in the slide arm 51, a moving pin hole 62 that is a long through hole, and springs 63a and 63b are provided, and the sliding member 52 is applied by the urging force of the springs 63a and 63b. Can be held at the neutral position CP at the time of the earthquake. Therefore, the slide member 52 can reciprocate at the time of an earthquake without performing complicated control.

  Next, operation | movement of the seismic isolation crane 5 of 2nd Embodiment which concerns on this invention is demonstrated, referring FIG. When the work is stopped during the night or when the traveling is stopped, the moving pin 61 is held at the neutral position CP of the slide arm 51 by the urging force of the springs 63a and 63b. Since the spring force of the springs 63a and 63b is equal to or greater than the running resistance of the rail clamp 20, the position of the moving pin 61 can be held even when the seismic isolation crane 5 is run.

  When an earthquake occurs, as shown in FIG. 11, the springs 63a and 63b expand and contract with each other due to the earthquake load, so that the moving pin 61 reciprocates in the moving pin hole 62 which is a long hole. That is, when a horizontal force in the x direction that is the traveling direction is applied to the seismic isolation crane 5, the seismic isolation crane 5 reciprocates in the x direction and is not affected by the gripping force of the rail clamp 20. Can be prevented.

  Also, when the seismic isolation crane 5 receives a gust of wind, one of the springs 63a and 63b expands and the other contracts due to the wind load, but after moving to the leeward side, the moving pin 61 ends the end of the moving pin hole 62. The gripping force of the rail clamp 20 is exhibited, and escape can be prevented.

  According to the above operation, in addition to the same effects as described above, the slide member 52 can be moved by the urging force of the springs 63a and 63b only by releasing the gripping force of the rail clamp 20 when the shaking of the earthquake stops. Since the slide arm 51 is held at the neutral position CP, recovery can be facilitated. Even in the case of a sudden earthquake, the slide member 52 can reciprocate on the slide arm 51 in accordance with the amplitude of the earthquake immediately.

  Further, the moving pin 61 can be held at the neutral position CP by the adjusting mechanism including the adjusting bolts 64a and 64b for adjusting the urging force of the springs 63a and 63b and the adjusting nuts 65a and 65b.

  Next, a seismic isolation crane 6 according to a third embodiment of the present invention will be described with reference to FIG. The seismic isolation crane 6 includes a rail clamp 20, a seismic isolation connection unit 80, and a neutral position holding mechanism 90. The seismic isolation connection portion 80 that connects the sill beam 3 of the seismic isolation crane 6 and the rail clamp 20 includes a slide arm 81, a slide member 82, a connection pin 83, and a sill beam column 84.

  The slide arm 81 is extended in the z direction, which is the vertical direction, toward the ground of the quay G, and is connected to the connecting portion 23 of the rail clamp 20 by the connecting pin 83. The width in the direction x perpendicular to the longitudinal direction of the slide arm 81 is formed wide so that the slide member 82 can reciprocate in the width direction of the slide arm 81.

  The slide member 82 joined to the sill beam column 84 has a space inside so that one end of the slide arm 81 and the neutral position holding mechanism 90 can be provided.

  The neutral position holding mechanism 90 includes a first moving pin 91a, a second moving pin 91b, a third moving pin 91c, a fourth moving pin 91d, a first moving pin hole 92a, a second moving pin hole 92b, and a spring ( Urging devices) 93a to 93d. The first moving pin 91a, the second moving pin 91b, the third moving pin 91c, and the fourth moving pin 91d are formed in the same manner as the above-described moving pin, and the first moving pin 91a and the second moving pin 91b are moved to the first. The third moving pin 91c and the fourth moving pin 91d are inserted into the second moving pin hole 92b through the pin hole 92a.

  By providing at least two moving pins in each of the moving pin holes 92a and 92b, the sill beam column 84 can be prevented from being inclined. Further, these moving pins 91a and 91b and 91c and 91d are arranged so as to straddle the neutral position CP. This neutral position CP is a substantially middle position between the moving pins 91a and 91b and 91c and 91d, and is a position at the approximate center of the width of the slide arm 81 in the x direction.

  The first moving pin hole 92a and the second moving pin hole 92b are formed as through holes that open in the x direction of the slide arm 81 and pass through the slide arm 81. The first moving pin 91a and the second moving pin 91b, the 3rd movement pin 91c, and the 4th movement pin 91d are comprised so that reciprocation is each possible in a x direction.

  The springs 93a to 93d are provided inside the slide member 82, respectively, and urge the slide arm 81 in the x direction. Here, only the spring is used as the biasing device, but a biasing device including a spring and an adjusting mechanism may be used as in the second embodiment.

  In the neutral position holding mechanism 90, the first moving pin 91a, the second moving pin 91b, the third moving pin 91c, and the fourth moving pin 91d move in the x direction, which is a direction orthogonal to the longitudinal direction of the slide arm 11. If possible, the configuration is not limited to the above. In this embodiment, two moving pins and two moving pin holes are provided, but the number is not limited.

  Next, operation | movement of the seismic isolation crane 6 of 3rd Embodiment which concerns on this invention is demonstrated, referring FIG. The first moving pin 91a, the second moving pin 91b, the third moving pin 91c, and the fourth moving pin 91d are driven by the urging force of the springs 93a to 93d when the work is stopped at night or when the traveling is stopped. Is held in the neutral position CP. Since the spring force of the springs 93a to 93d is equal to or greater than the running resistance of the rail clamp 20, even when the seismic isolation crane 6 is run, the first moving pin 91a, the second moving pin 91b, the third moving pin 91c, and the fourth The position of the moving pin 91d can be held.

  When an earthquake occurs, as shown in FIG. 13, the springs 93a to 93d expand and contract with each other due to the earthquake load, so that the first moving pin 91a, the second moving pin 91b, the third moving pin 91c, and the fourth The moving pins 91d reciprocate in the first moving pin hole 92a and the second moving pin hole 92b, respectively. That is, when a horizontal force in the x direction that is the traveling direction is applied to the seismic isolation crane 6, the seismic isolation crane 6 reciprocates in the x direction together with the slide member 82 in the width direction of the slide arm 81, and the gripping force of the rail clamp 20 is increased. Since it is not affected, the wheel can be prevented from being lifted.

  Also, when the seismic isolation crane 6 receives a gust of wind, the springs 93a to 93d are extended by the wind load, and the other is contracted. The third moving pin 91c and the fourth moving pin 91d stop at the ends of the first moving pin hole 92a and the second moving pin hole 92b, and the gripping force of the rail clamp 20 is exerted to prevent escape. Can do.

  According to the above operation, in addition to the same effects as described above, the longitudinal direction of the slide arm 81 is directed in the z direction, which is the vertical direction. Therefore, the action of the moment of the slide arm 81 is reduced, and the rail clamp 20 It can be prevented from coming off. Moreover, since a structure is not added to the rail clamp 20, the conventional rail clamp 20 can be used. In addition, the tilt of the sill beam column 84 can be prevented by arranging two moving pins in parallel in the x direction. Furthermore, by placing two moving pins in parallel in the z direction, the force applied to the moving pins can be dispersed, and the load on the moving pins can be reduced.

  Next, a seismic isolation crane according to a fourth embodiment of the present invention will be described with reference to FIG. Instead of the rail guide 70 of the second embodiment described above, a rail clamp 100 is used. Since the rail clamp 100 can also grip the traveling rail R, the action of the moment of the slide arm 51 generated by the sill beam column 53 swinging in the transverse direction can be prevented, and the rail clamp 20 can be prevented from coming off. . This rail clamp 10 can also be used in place of the guide roller 40 of the first embodiment.

  Next, a seismic isolation crane according to a fifth embodiment of the present invention will be described with reference to FIG. Buffers (buffer devices) 110a and 110b that reduce the impact of the slide member 52 of the second embodiment described above when the slide member 52 moves to the end of the slide arm 51 in response to an earthquake amplitude or gust. Are provided at both ends of the slide arm 51.

  According to this configuration, even if the slide member 51 moves on the slide arm 51 in response to a large earthquake load or wind load, the buffers 110 a and 110 b can absorb the impact of the slide member 51. Therefore, the tolerance of the seismic isolation connecting part 50 can be improved. It can also withstand unexpected large vibrations. The buffers 110a and 110b can also be applied to the seismic isolation crane 1 of the first or third embodiment.

  Next, a seismic isolation crane according to a sixth embodiment of the present invention will be described with reference to FIG. It replaces with the sill beam column 14 of 1st Embodiment, and the traveling apparatus column (support | pillar) 16 joined with the traveling apparatus 4a of the seismic isolation crane 1 is provided. The traveling device column 16 and the joint portion 13 are joined. The other configuration is the same as that of the first embodiment. According to this configuration, even if the rail clamp 20 is provided in the traveling devices 4a and 4b, the same effect as described above can be obtained. This configuration can also be applied to the second, third, fourth, and fifth embodiments.

  In this embodiment, the slide members 12, 52, 82 are connected to the leg structure 3 via the sill beam column 14, and the slide arms 11, 51, 81 are connected to the rail clamp 20. The slide arms 11, 51, 81 may be connected to the rail clamp 20 via the sill beam column 14, and the slide members 12, 52, 82 and the leg structure 3 may be directly connected.

  Further, without using the sill beam column 14, the slide members 12, 52, 82 and the leg structure 3 may be connected, and the slide arms 11, 51, 81 and the rail clamp 20 may be connected. However, in this case, it is preferable to provide a seismic isolation mechanism using laminated rubber at the connecting portion so as to release the amplitude of the earthquake in the y direction, which is the transverse direction. In addition, the slide arms 11, 51, 81 having the longitudinal direction in the y direction and the sill beam column 14 swinging in the x direction may be combined.

  The cargo handling port device of the present invention includes a slide arm and a slide member that can swing at least in the traveling direction of the cargo handling port device at the connecting portion with the windbreak escape prevention device for preventing escape, and therefore the device for preventing wind escape from running The gripping force can be released and the wheel can be prevented from being lifted, so that it can be used particularly for harbor handling equipment equipped with a seismic isolation device.

1 Seismic isolation crane (harbor handling equipment)
2a, 2b Leg structure 3 Sill beam 4a, 4b Traveling device 10, 50, 80 Seismic isolation connecting part 11, 51, 81 Slide arm 12, 52, 82 Slide member 14 Sill beam column (post)
16 Traveling equipment column (post)
20, 100 Rail clamp (Escape prevention device in case of gust of wind)
30, 60, 90 Neutral position holding mechanism 31 Fixing pin 32 Fixing pin hole 33 Hydraulic jack (insertion / extraction device)
34 control device 40 guide roller (clamping device)
61, 91a-91d Moving pins 62, 92a, 92b Moving pin holes 63a, 63b, 93a-93d Spring (elastic body)
64a, 64b Adjustment bolt (biasing device)
65a, 65b Adjustment nut (biasing device)
70 Rail guide (holding device)
110 Buffer (buffer device)
CP neutral position

Claims (6)

A leg structure, a traveling device installed below the leg structure and traveling on a rail, and a gust of wind that is connected to the leg structure or the traveling device via a connecting portion and moves on the rail In harbor handling equipment equipped with a time runaway prevention device,
A slide arm that has a lower end portion connected to the device for preventing a runaway in a gust of wind and extends in a vertical direction with a traveling direction of the harbor cargo handling device as a width direction; and the leg structure or the traveling device and the slide arm. A slide member arranged between the upper end of the slide arm and slidable along the width direction of the upper end of the slide arm, and provided on the slide arm arranged on the slide member A harbor cargo handling apparatus comprising a neutral position holding mechanism that fixes the slide member at a neutral position.   The harbor handling equipment according to claim 1, wherein the slide member has a space therein, and the upper end portion of the slide arm and the neutral position holding mechanism are disposed in the space.   A first moving pin hole and a second moving pin hole, and a first moving pin hole and a second pin hole, which are long holes having the width direction as a longitudinal direction at the upper end portion of the slide arm, respectively. The harbor handling equipment according to claim 2, further comprising a moving pin that is inserted through each of the two pins and fixed to the slide member.   The harbor handling equipment according to claim 2 or 3, further comprising an urging device that urges the upper end portion of the slide arm in the width direction. A leg structure, a traveling device installed below the leg structure and traveling on a rail, and a gust of wind that is connected to the leg structure or the traveling device via a connecting portion and moves on the rail In the seismic isolation method of harbor cargo handling equipment equipped with a time runaway prevention device,
The escaping prevention device at the time of gust is connected to the lower end portion of the slide arm extending in the vertical direction and having the traveling direction of the harbor cargo handling device as the width direction, and slides along the width direction of the upper end portion of the slide arm. A neutral position holding mechanism for disposing a slide member between the upper end portion of the slide arm and the leg structure or the traveling device and fixing the slide member at a neutral position provided on the slide arm. Is arranged on the slide member,
A seismic isolation method for a port cargo handling device, wherein the slide member is slid along the width direction of the slide arm together with the port cargo handling device when an earthquake occurs. A first moving pin hole and a second moving pin hole, which are elongated holes having the width direction as a longitudinal direction, are formed in the upper end portion of the slide arm, and the first moving pin hole and the second movement are formed. At least two moving pins are inserted into each of the pin holes, the moving pins are fixed to the slide member, and an urging device for urging the upper end portion of the slide arm in the width direction is installed. ,
The seismic isolation method for harbor cargo handling equipment according to claim 5, wherein the slide arm is held at a neutral position provided on the slide arm.

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