JP2011105448A - Cylinder type deck crane - Google Patents

Cylinder type deck crane Download PDF

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Publication number
JP2011105448A
JP2011105448A JP2009262045A JP2009262045A JP2011105448A JP 2011105448 A JP2011105448 A JP 2011105448A JP 2009262045 A JP2009262045 A JP 2009262045A JP 2009262045 A JP2009262045 A JP 2009262045A JP 2011105448 A JP2011105448 A JP 2011105448A
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Japan
Prior art keywords
jib
base
movable
type deck
crane
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Pending
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JP2009262045A
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Japanese (ja)
Inventor
Yuichi Asai
裕一 浅井
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Ihi Corp
株式会社Ihi
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Application filed by Ihi Corp, 株式会社Ihi filed Critical Ihi Corp
Priority to JP2009262045A priority Critical patent/JP2011105448A/en
Publication of JP2011105448A publication Critical patent/JP2011105448A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cylinder type deck crane capable of horizontally pulling in a hoisted cargo. <P>SOLUTION: The cylinder type deck crane 4 includes a crane post 5 erected on the upper deck 2 of a cargo boat 1, a base part 6 turnably provided on the upper end of the crane post 5, a jib 8 which is derrickably provided on the base part 6 via a supporting base 7, a winch 12 which is provided on the supporting base 7 to wind a lifting tool 11 hanged from the fore-end of the jib 8 via a hanging rope 10, and a cylinder 9 which is provided between the base part 6 and the jib 8 to derrick the jib 8. The cylinder type deck crane further includes a fixed block 18 provided on the jib 8 so that the hanging rope 10 between the winch 12 and the fore end of the jib 8 is wound in a length-adjustable manner, a movable block 19 advancible/retractable to/from the fixed block 18, and a control means 20 for performing the horizontal pulling of the hoisted cargo so that the lifting tool 11 is moved at a substantially same height by advancing/retracting the movable block 19 according to the derricking angle of the jib 8. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cylinder-type deck crane, and more particularly to a cylinder-type deck crane that enables a horizontal load of a suspended load.

  As shown in FIG. 4, a deck crane 4 is installed on the upper deck 2 of the cargo ship 1, which is a cargo handling device for carrying the cargo into the cargo hold (loading room) 3 and carrying it out of the cargo hold 3 (for example, , See Patent Document 1). In addition, as the deck crane, there are a rope type deck crane that moves up and down a jib with a wire rope and a cylinder type deck crane that moves up and down a jib with a cylinder.

  As shown in FIG. 5, the cylinder type deck crane 4 includes a cylindrical crane post 5 erected on the upper deck 2 of the cargo ship 1, and a base that is pivotably provided at the upper end of the crane post 5. Section 6, a support base 7 provided on the base section 6, a jib 8 provided on the support base 7 so as to be able to be lifted and lowered, and the jib 8 is suspended between the swivel base 6 and the jib 8. A cylinder 9 to be operated is provided, and a winch 12 that is provided on the support 7 and hangs up and down from the tip of the jib 8 via a suspension rope 10.

JP 2008-247588 A

  By the way, in the conventional cylinder type deck crane 4, unlike the rope type deck crane, the jib 8 is raised from the low position shown by the solid line to the high position shown by the phantom line, and the suspended load is moved from the side to the front side. When pulling in, since it does not have a function of pulling the suspended load (including the lifting tool 11) horizontally, the suspended load rises to a high position as the jib 8 rises, and from this high position at the next unloading. The suspension rope 10 had to be unloaded and the suspended load unloaded, which was difficult to operate.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a cylinder deck crane that can draw a suspended load horizontally.

  In order to achieve the above object, the present invention provides a crane post that is erected on the upper deck of a cargo ship, a base portion that is pivotally provided at an upper end portion of the crane post, and a support base on the base portion. A jib that can be raised and lowered via a winch, a winch that is provided on the support base and that lifts and lowers a suspension hanging from the tip of the jib via a suspension rope, and between the base and the jib In a cylinder deck crane provided with a cylinder for raising and lowering the jib, a fixed pulley provided on the jib to wrap a suspension rope between the winch and the tip of the jib so as to be adjustable in length. A movable pulley that can move forward and backward with respect to the fixed pulley, and a horizontal load of the suspended load so that the lifting tool moves at substantially the same height by moving the movable pulley forward and backward according to the elevation angle of the jib. Characterized in that a control means.

  A plurality of the fixed pulleys are provided on a fixed bracket provided on the jib, and a plurality of the movable pulleys are provided on a movable bracket provided on the jib so as to be movable along a longitudinal direction thereof. It is preferable that the suspension rope is wound around the plurality of times.

  The control means includes an actuator that moves the movable pulley or the movable bracket back and forth, an angle sensor that detects the elevation angle of the jib, and a control unit that controls the actuator according to a detection angle of the angle sensor. It is preferable.

  It is preferable that the control means is constituted by a control rod which is stretched between the movable pulley or the movable bracket and the work table and advances and retracts the movable pulley according to the elevation angle of the jib.

  ADVANTAGE OF THE INVENTION According to this invention, although it is a cylinder type deck crane, a suspended load can be drawn in horizontally.

1 is a side view schematically showing an embodiment of a cylinder deck crane according to the present invention. It is a perspective view which shows an example of a horizontal drawing-in mechanism roughly. It is a side view showing roughly other embodiments of a cylinder type deck crane concerning the present invention. It is a side view which shows roughly the cargo ship provided with the cylinder type deck crane. It is a figure which shows a cylinder type deck crane roughly, (a) is a side view, (b) is a top view.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is explained in full detail based on an accompanying drawing.

  As shown in FIG. 1, a cylinder deck crane 4 includes a crane post 5 erected on an upper deck of a cargo ship (not shown), and a disk-like base portion provided at the upper end of the crane post 5 so as to be pivotable. (Also referred to as a base plate) 6, a support 7 provided on the base 6, a jib 8 provided on the support 7 so as to be raised and lowered, and provided on the support 7, the jib 8 A winch 12 that winds and lowers a hanging tool 11 suspended from the tip of the wire 11 via a suspension rope 10, and a cylinder 9 that is provided between the base portion 6 and the jib 8 and operates to raise and lower the jib 8. .

  The base portion 6 is provided at the upper end portion of the crane post 5 so as to be turnable via a turning ring (not shown) and is turned by a hydraulic motor (not shown). The support base 7 is erected on the upper part of the base portion 6, and a cab 13 is provided at the front part of the support base 7.

  The base end portion of the jib 8 is bifurcated to the left and right (see FIG. 5B), and is pivotally supported by the jib pins 14 projecting from both sides of the upper front end of the support base 7. Has been. The winch 12 is installed behind the jib pin 14. Ascending / descending operation cylinders (for example, hydraulic cylinders) 9 are arranged as a pair on the left and right sides of the cab 13, each one end being pivotally supported by a lower bracket 15 disposed on the base portion 6, and each other end being the jib. 8 is pivotally supported by an upper bracket 16 disposed at a lower portion on the base side.

  A pulley 17 around which the suspension rope 10 is wound is provided at the tip of the jib 8, and the tip 10 a of the suspension rope 10 suspended from the pulley 17 is folded in a U shape and fixed to the tip of the jib 8. Yes. A pulley portion 11 a of the hanging tool 11 is supported on a U-shaped folded portion of the hanging rope 10.

  And in order to enable the horizontal load of the suspended load hung on the hanger 11, the jib 8 is provided on the jib 8 so as to wrap the hoisting rope 10 between the winch 12 and the tip of the jib 8 so as to be adjustable in length. The suspended pulley 11 moves horizontally or substantially horizontally by moving the movable pulley 19 forward and backward according to the elevation angle of the jib 8. And a control means 20 for horizontally pulling the suspended load.

  In this case, as shown in FIG. 2, a plurality of fixed pulleys 18 are provided on the fixed bracket 21 and a plurality of movable pulleys 19 are provided on the movable bracket 22 on the same axis. The fixed bracket 21 is fixed to the upper surface portion of the jib 8, and the movable bracket 22 is provided on the upper surface portion of the jib 8 so as to be movable (slidable) along the longitudinal direction thereof. An actuator 23 for advancing and retracting the movable pulley 19 together with the movable bracket 22 is provided on the upper surface of the jib 8. The actuator 23 is made of a cylinder, for example. The suspension rope 10 spanned between the winding drum 24 of the winch 12 and the pulley 17 at the tip of the jib 8 is alternately wound around the movable pulley 19 and the fixed pulley 18 a plurality of times.

  Here, the greater the number of times the suspension rope 10 is wound, the greater the amount of extension or pull-in of the suspension rope 10 can be made with a smaller amount of movement of the movable bracket 22. As a result, when the jib 8 is raised from a substantially horizontal position to a substantially vertical position at a predetermined speed, the suspension rope 10 is fed out at a predetermined speed, and the lifting tool 11 is maintained at substantially the same height from the side (front). It can be pulled to the near side. On the contrary, when the jib 8 is lowered from a substantially vertical position to a substantially horizontal position at a predetermined speed, the suspension rope 10 is pulled at a predetermined speed, and the lifting tool 11 is kept at substantially the same height from the front side. Can be sent forward (forward).

  Further, in this case, in order to perform automatic control in association with the elevation angle of the jib 8 and the amount of extension of the suspension rope 10, the elevation angle (rotation angle) of the jib 8 is set at or near the jib pin 14 portion of the base of the jib 8. An angle sensor (for example, an encoder) 25 for detection is provided, and the control unit 20 includes a control unit 26 that controls the actuator 23 of the movable bracket 22 based on the detected angle from the angle sensor 25.

  The operation of the present embodiment having the above configuration will be described. According to the cylinder type deck crane 4 of the present embodiment, a crane post 5 erected on the upper deck of a cargo ship, a base portion 6 provided at the upper end of the crane post 5 so as to be pivotable, and the base portion 6, a jib 8 provided so as to be freely raised and lowered via a support base 7, and a suspension 11 provided on the support base 7 and suspended from the tip of the jib 8 are wound up and down via a suspension rope 10. In a cylinder type deck crane 4 provided between a winch 12 and a base 9 and a cylinder 9 for raising and lowering the jib 8, a suspension between the winch 12 and the tip of the jib 8 is provided. A fixed pulley 18 provided on the jib 8 to wind the rope 10 so as to be adjustable in length, a movable pulley 19 provided so as to be movable forward and backward with respect to the fixed pulley 18, and the movable pulley 19 being lifted and lowered by the jib 8. Corner And a control means 20 for horizontally retracting the suspended load so that the lifting tool 11 moves substantially horizontally or substantially at the same height by advancing and retreating in accordance with the Can be pulled horizontally.

  In this case, a plurality of fixed pulleys 18 are provided on a fixed bracket 21 provided on the jib 8, and a plurality of movable pulleys 19 are provided on a movable bracket 22 provided on the jib 8 so as to be movable along its longitudinal direction. Since the suspension rope 10 is wound around the fixed pulley 18 and the movable pulley 19 a plurality of times, it is possible to increase the feeding amount or the pull-in amount of the suspension rope 10 with a small movement amount of the movable bracket 22.

  Further, the control means 20 controls the actuator 23 according to the detection angle of the actuator 23 that moves the movable pulley 19 forward and backward, the angle sensor 25 that detects the elevation angle of the jib 8, and the angle sensor 25. Therefore, the movable pulley 19 can be automatically advanced and retracted based on the elevation angle of the jib 8, and the height of the suspended load is constant even when the jib is lifted. Horizontal pull-in can be performed easily.

  FIG. 3 is a side view schematically showing another embodiment of the cylinder type deck crane. In this embodiment, the same parts as those of the embodiment of FIG. In the cylinder type deck crane 4 of the present embodiment, the control means 20 is extended between the movable pulley 19 and the work table 7 and moves the movable pulley 19 forward and backward according to the elevation angle of the jib 8. It is comprised by the control rod 27 to be made. In this case, the movable bracket 22 including the movable pulley 19 is disposed closer to the base of the jib 8 than the fixed pulley 18. One end of the control rod 27, which is a bar material, is rotatably connected to the movable bracket 22 of the movable pulley 19, and the other portion of the control rod 27 is separated from the jib pin 14 in the support base 7. Ends are pivotally connected.

  According to the cylinder type deck crane 4 of the present embodiment, when the jib 8 rises from below to above (the elevation angle increases), the control rod 27 works as a support rod to fix the movable bracket 22 of the movable pulley 19. By moving forward (approaching) the fixed bracket 21 of the pulley 18, the hanging rope 10 is drawn out, and the hanger 11 or the suspended load can be drawn at the same height. On the other hand, when the jib 8 is lowered from the upper side to the lower side (the elevation angle is decreased), the control rod 27 works so as to hold the movable bracket 22 so that the movable bracket 22 is retracted (separated) from the fixed bracket 21 and is thereby suspended. The rope 10 is drawn, and the hanging tool 11 or the suspended load can be sent out at the same height. In the embodiment shown in FIG. 3, the angle sensor 25, the actuator 23, and the control unit 20 in the embodiment shown in FIG.

  The embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the gist of the present invention. .

DESCRIPTION OF SYMBOLS 1 Cargo ship 2 Upper deck 4 Cylinder type deck crane 5 Crane post 6 Base part 7 Support stand 8 Jib 9 Cylinder 10 Hanging rope 11 Lifting tool 12 Winch 18 Fixed pulley 19 Movable pulley 20 Control means 21 Fixed bracket 22 Movable bracket 23 Actuator 25 Angle sensor 26 Control unit 27 Control rod

Claims (4)

  1.   A crane post erected on the upper deck of the cargo ship, a base portion provided at the upper end portion of the crane post so as to be pivotable, and a jib provided on the base portion so as to be able to rise and fall through a support base, A winch provided on the support base and for lifting and lowering a hanging tool suspended from the tip of the jib via a hanging rope, and a cylinder provided between the base portion and the jib for raising and lowering the jib. A fixed pulley provided on the jib for winding a suspension rope between the winch and the tip of the jib so as to be adjustable in length, and a movable pulley capable of moving forward and backward with respect to the fixed pulley. And a control means for horizontally pulling the suspended load so that the lifting tool moves at substantially the same height by moving the movable pulley forward and backward according to the elevation angle of the jib. Sunda type deck crane.
  2.   A plurality of the fixed pulleys are provided on a fixed bracket provided on the jib, and a plurality of the movable pulleys are provided on a movable bracket provided on the jib so as to be movable along a longitudinal direction thereof. The cylinder-type deck crane according to claim 1, wherein the suspension rope is wound a plurality of times.
  3.   The control means includes an actuator that moves the movable pulley or the movable bracket back and forth, an angle sensor that detects the elevation angle of the jib, and a control unit that controls the actuator according to a detection angle of the angle sensor. The cylinder type deck crane according to claim 1, wherein the cylinder type deck crane is provided.
  4.   The control means is constituted by a control rod that is spanned between the movable pulley or the movable bracket and the work table and moves the movable pulley forward and backward according to the elevation angle of the jib. The cylinder type deck crane of Claim 1 or 2.
JP2009262045A 2009-11-17 2009-11-17 Cylinder type deck crane Pending JP2011105448A (en)

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JP2009262045A JP2011105448A (en) 2009-11-17 2009-11-17 Cylinder type deck crane

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Application Number Priority Date Filing Date Title
JP2009262045A JP2011105448A (en) 2009-11-17 2009-11-17 Cylinder type deck crane

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JP2011105448A true JP2011105448A (en) 2011-06-02

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102659041A (en) * 2012-05-10 2012-09-12 中联重科股份有限公司 Engineering machinery
CN102979079A (en) * 2012-11-22 2013-03-20 三一重工股份有限公司 Cylinder driven derricking mechanism of dynamic compaction machine and dynamic compaction machine
CN102979076A (en) * 2012-11-22 2013-03-20 三一重工股份有限公司 Tire type dynamic compaction machine
CN102979078A (en) * 2012-11-22 2013-03-20 三一重工股份有限公司 Cylinder driven lifting mechanism of dynamic compaction machine and dynamic compaction machine
CN103046531A (en) * 2012-12-20 2013-04-17 三一重工股份有限公司 Dynamic compactor and anti-impact luffing mechanism thereof
CN103205959A (en) * 2012-11-22 2013-07-17 三一重工股份有限公司 Elastic support device, dynamic compactor lifting device and dynamic compactor
CN103803432A (en) * 2014-02-13 2014-05-21 山东大汉建设机械有限公司 Twofold luffing device for trolley luffing tower crane
CN103964325A (en) * 2014-04-25 2014-08-06 中煤平朔集团有限公司 Base-leveling rotary hoist for train
CN104150393A (en) * 2014-07-25 2014-11-19 国网河南省电力公司南阳供电公司 Micro power electric equipment rotating and hoisting device
CN105621284A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Crane boom connecting structure
CN105621274A (en) * 2014-11-05 2016-06-01 无锡晟欧船舶设备有限公司 Marine telescopic crane
CN105621281A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Boom structure
CN105621286A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Jib-telescopic material lifting device
KR101784812B1 (en) * 2015-08-19 2017-11-06 삼성중공업 주식회사 Sea Crane
CN108910726A (en) * 2018-06-27 2018-11-30 浙江省建设机械集团有限公司 A kind of system and bearing calibration of derrick crane load-carrying correction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4971650A (en) * 1972-11-17 1974-07-11
JPS6337692U (en) * 1986-08-29 1988-03-10
JPH058995A (en) * 1991-07-03 1993-01-19 Yokohama Rubber Co Ltd:The Suspending method and device thereof for traveling crane
JP2008247585A (en) * 2007-03-30 2008-10-16 Ihi Corp Method for using pump between pump units for plural deck cranes, and pump units

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4971650A (en) * 1972-11-17 1974-07-11
JPS6337692U (en) * 1986-08-29 1988-03-10
JPH058995A (en) * 1991-07-03 1993-01-19 Yokohama Rubber Co Ltd:The Suspending method and device thereof for traveling crane
JP2008247585A (en) * 2007-03-30 2008-10-16 Ihi Corp Method for using pump between pump units for plural deck cranes, and pump units

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102659041A (en) * 2012-05-10 2012-09-12 中联重科股份有限公司 Engineering machinery
CN103205959B (en) * 2012-11-22 2015-08-12 三一重工股份有限公司 Resilient supporting unit, dynamic compaction machinery hoisting mechanism and dynamic compaction machinery
CN102979079A (en) * 2012-11-22 2013-03-20 三一重工股份有限公司 Cylinder driven derricking mechanism of dynamic compaction machine and dynamic compaction machine
CN102979076A (en) * 2012-11-22 2013-03-20 三一重工股份有限公司 Tire type dynamic compaction machine
CN103205959A (en) * 2012-11-22 2013-07-17 三一重工股份有限公司 Elastic support device, dynamic compactor lifting device and dynamic compactor
CN102979076B (en) * 2012-11-22 2014-04-16 三一重工股份有限公司 Tire type dynamic compaction machine
CN102979078A (en) * 2012-11-22 2013-03-20 三一重工股份有限公司 Cylinder driven lifting mechanism of dynamic compaction machine and dynamic compaction machine
CN103046531A (en) * 2012-12-20 2013-04-17 三一重工股份有限公司 Dynamic compactor and anti-impact luffing mechanism thereof
CN103046531B (en) * 2012-12-20 2015-04-22 三一重工股份有限公司 Dynamic compactor and anti-impact luffing mechanism thereof
CN103803432A (en) * 2014-02-13 2014-05-21 山东大汉建设机械有限公司 Twofold luffing device for trolley luffing tower crane
CN103964325A (en) * 2014-04-25 2014-08-06 中煤平朔集团有限公司 Base-leveling rotary hoist for train
CN104150393A (en) * 2014-07-25 2014-11-19 国网河南省电力公司南阳供电公司 Micro power electric equipment rotating and hoisting device
CN105621284A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Crane boom connecting structure
CN105621281A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Boom structure
CN105621286A (en) * 2014-10-31 2016-06-01 无锡晟欧船舶设备有限公司 Jib-telescopic material lifting device
CN105621274A (en) * 2014-11-05 2016-06-01 无锡晟欧船舶设备有限公司 Marine telescopic crane
KR101784812B1 (en) * 2015-08-19 2017-11-06 삼성중공업 주식회사 Sea Crane
CN108910726A (en) * 2018-06-27 2018-11-30 浙江省建设机械集团有限公司 A kind of system and bearing calibration of derrick crane load-carrying correction

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