CN102701086A - Method and device for improving lateral load capacity of arm support, and crane - Google Patents
Method and device for improving lateral load capacity of arm support, and crane Download PDFInfo
- Publication number
- CN102701086A CN102701086A CN2012102004135A CN201210200413A CN102701086A CN 102701086 A CN102701086 A CN 102701086A CN 2012102004135 A CN2012102004135 A CN 2012102004135A CN 201210200413 A CN201210200413 A CN 201210200413A CN 102701086 A CN102701086 A CN 102701086A
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- CN
- China
- Prior art keywords
- jib
- arm support
- hoisting mechanism
- masts
- lateral loading
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
- B66C23/825—Bracing equipment acting in horizontal direction
Abstract
The embodiment of the invention discloses a device for improving the lateral load capacity of an arm support, and belongs to the technical field of improvement on the lateral load capacity of the arm support of a caterpillar crane. The device is arranged on the arm support and comprises two masts, a tensioning hoisting mechanism and a pawl locking device, wherein the two masts are symmetrically arranged on the two sides of the arm support respectively and perpendicular to the arm support; the two masts and the arm support are positioned on the same plane; the masts are hinged with the arm support; the tensioning hoisting mechanism and the pawl locking device are arranged at the head ends of the masts, which are far away from the arm support; a guide pulley is arranged on the top of the arm support; a steel wire rope is connected between the guide pulley and the tensioning hoisting mechanism; the head end of each mast is connected with the root of the arm support through a connecting device; a pull sensor is arranged on the connecting device; and a controller controls the rotation direction of the tensioning hoisting mechanism through a signal from the pull sensor. Part of lateral loads can be offset by a lateral support device, the stress condition of a main arm is improved, the lateral stability of the arm support is improved, and the load capacity of the arm support is improved.
Description
Technical field
The present invention relates to improve crawler crane boom lateral loading ability, relate in particular to a kind of method, device and hoisting crane that improves jib lateral loading ability.
Background technology
Along with the development of modular design, lifting market in the whole world requires increasingly to the crawler crane load-carrying ability, and height in place is increasingly high, so the truss arm develops to heavy in section, length, big weight direction.
But in actual conditions, the requirement of transporting width both at home and abroad strictness has again limited truss arm cross section.This has just caused the contradiction of truss arm load-carrying ability and cross section restriction.
Summary of the invention
A kind of device that improves jib lateral loading ability is provided at present, can offsets the part lateral loading, improve the strained condition of principal arm, improved the lateral stability of jib, finally improve crawler crane boom lateral loading ability through lateral support.Specifically realize through following technical scheme:
A kind of device that improves jib lateral loading ability is located on the jib, and wherein, the device of said raising jib lateral loading ability comprises:
Two symmetrical masts are arranged at the both sides and the vertical said jib of jib respectively, and said two masts and said jib are in same plane, and said mast is hinged said jib;
Tensioning hoisting mechanism and ratchet blocking device are located at the head end of said mast away from said jib;
The top of said jib is equipped with leading sheave, is connected with steel rope between said leading sheave and the tensioning hoisting mechanism;
The head end of each mast connects the root of said jib separately through a connecting device; Said connecting device is provided with pulling force sensor; Said pulling force sensor is used for the pulling force signal to a controller being provided; Said controller is used to control solenoid directional control valve, with the tensioning hoisting mechanism rotation direction of change and said pulling force sensor homonymy.
Preferably, said two masts are located at the left and right sides of said jib respectively.
Preferably, said two masts all connect the following joint arm of said jib.
Preferably, said connecting device is arm-tie or rope row.
On the other hand, a kind of method that improves the jib load capacity is provided also, wherein, comprises the steps:
Step 1 is gathered side senser data;
Step 2 if the data of sensor are then controlled said tensioning hoisting mechanism and put rope greater than the upper limit of preset range, is received rope if the data of sensor, are then controlled said tensioning hoisting mechanism less than the lower limit of preset range.
Preferably, in step 2, realize said tensioning hoisting mechanism receipts rope or put rope through the controlled hydraulic system solenoid directional control valve.
Another aspect also provides a kind of hoisting crane, comprises jib, and wherein, said jib is provided with the device of above-mentioned any described raising jib lateral loading ability.
The advantage of technique scheme is: can offset the part lateral loading through the lateral support device, improve the strained condition of principal arm, improve the lateral stability of jib, finally improve its load capacity.Also have dismounting advantage easily, mast can be fixed in joint arm both sides down around its root hinge revolution during transportation, satisfies the demand of transportation width both at home and abroad.
Description of drawings
Through reading the detailed description of non-limiting example being done with reference to following accompanying drawing, it is more obvious that the present invention and characteristic thereof, profile and advantage will become.Mark identical in whole accompanying drawings is indicated identical part.Painstakingly proportionally do not draw accompanying drawing, focus on illustrating purport of the present invention.In the accompanying drawings, for cheer and bright, the part parts have been amplified.
Fig. 1 shows according to an embodiment of the invention, a kind of schematic representation of apparatus that improves jib lateral loading ability;
Fig. 2 illustrates according to an embodiment of the invention, the scheme drawing of hoisting mechanism in a kind of device that improves arm side direction frame load capacity;
Fig. 3 is that the A of Fig. 2 is to scheme drawing.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is further elaborated.The specific embodiment described herein only is used to explain the present invention, and is not used in qualification protection scope of the present invention.
In conjunction with a kind of embodiment that improves the device of jib lateral loading ability that goes out with reference to figure 1; Said device is located on the jib 6; Particularly, the device of said raising jib lateral loading ability comprises: two masts 1 are symmetricly set in the both sides and the vertical said jib 6 of jib 6 respectively; Said two masts 1 are in same plane with said jib 6, and said mast 1 is hinged said jib 6; Tensioning hoisting mechanism 3 and ratchet blocking device 4, ratchet blocking device 4 is used to lock hoisting mechanism, is located at the head end of said mast 1 away from said jib 6; The top of said jib 6 is equipped with leading sheave 7, is connected with steel rope 8 between said leading sheave 7 and the tensioning hoisting mechanism 3; The root that the head end of each mast 1 connects said jib 6 through a connecting device 5 separately is to form stable triangular structure; Said connecting device 5 is provided with pulling force sensor 9; Said pulling force sensor 9 is used for the pulling force signal to a controller (not shown in figure 1) being provided, and said controller is according to tensioning hoisting mechanism 3 rotation directions of said pulling force signal control solenoid directional control valve (not shown in figure 1) with change and said pulling force sensor 9 homonymies.Said mast 1 is hinged said jib 6 and makes that mast can be fixed in joint arm both sides down around its root hinge revolution when transporting, and need not independent transportation.
The purpose that it will be appreciated by those skilled in the art that the embodiment of the invention is to improve jib lateral loading ability, and therefore, two masts 1 are located at the left and right sides of said jib 6 respectively.
In the above-mentioned technical scheme, steel rope 8 is walked around leading sheave 7 and is realized tensioning through tensioning hoisting mechanism 3, realizes locking through blocking device 4.
More particularly, said two masts 1 all connect the following joint arm 2 of said jib 6.
Preferably, said connecting device 5 is arm-tie or rope row.
In conjunction with referring to figs. 2 and 3, more preferably, tensioning hoisting mechanism 3 sides are provided with reductor 10, control folding and unfolding rope speed.
On the other hand, a kind of method that improves the jib load capacity, when jib bears side when carrying, carry out following steps: step 1, gather side senser data; Step 2 if the data of sensor are then controlled said tensioning hoisting mechanism 3 and put rope greater than the upper limit of preset range, is received rope if the data of sensor, are then controlled said tensioning hoisting mechanism 3 less than the lower limit of preset range.Apparatus and method through above-mentioned lateral support can be offset the part lateral loading, improve the strained condition of principal arm, have improved the lateral stability of jib, finally improve its load capacity.
Further, in step 2, realize said tensioning hoisting mechanism 3 receipts ropes or put rope through the controlled hydraulic system solenoid directional control valve.
Embodiments of the invention also provide a kind of crawler crane, comprise jib 6, and said jib 6 is provided with the device of described raising jib lateral loading ability.Adopted the device of above-mentioned raising jib lateral loading ability, not only can improve jib lateral loading ability, the requirement of width when also having satisfied domestic and international transportation in when construction.
It should be appreciated by those skilled in the art that those skilled in the art combine prior art and the foregoing description can realize said variant, do not repeat them here.Such variant does not influence flesh and blood of the present invention, does not repeat them here.
More than preferred embodiment of the present invention is described.It will be appreciated that the present invention is not limited to above-mentioned specific implementations, equipment of wherein not describing in detail to the greatest extent and structure are construed as with the common mode in this area to be implemented; Any those of ordinary skill in the art; Do not breaking away under the technical scheme scope situation of the present invention; All the method for above-mentioned announcement capable of using and technology contents are made many possible changes and modification to technical scheme of the present invention; Or being revised as the equivalent embodiment of equivalent variations, this does not influence flesh and blood of the present invention.Therefore, every content that does not break away from technical scheme of the present invention, all still belongs in the scope of technical scheme protection of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (7)
1. a device that improves jib lateral loading ability is located on the jib (6), it is characterized in that, the device of said raising jib lateral loading ability comprises:
Two masts (1) are symmetricly set in the both sides and the vertical said jib (6) of jib (6) respectively, and said two masts (1) are in same plane with said jib (6), and said mast (1) is hinged said jib (6);
Tensioning hoisting mechanism (3) and ratchet blocking device (4) are located at the head end of said mast (1) away from said jib (6);
The top of said jib (6) is equipped with leading sheave (7), is connected with steel rope (8) between said leading sheave (7) and the said tensioning hoisting mechanism (3);
The head end of each said mast (1) connects the root of said jib (6) separately through a connecting device (5); Said connecting device (5) is provided with pulling force sensor (9); Said pulling force sensor (9) is used for the pulling force signal to a controller being provided; Said controller is used to control solenoid directional control valve, with tensioning hoisting mechanism (3) rotation direction of change and said pulling force sensor (9) homonymy.
2. the device of raising jib lateral loading ability according to claim 1 is characterized in that said two masts (1) are located at the left and right sides of said jib (6) respectively.
3. the device of raising jib lateral loading ability according to claim 1 and 2 is characterized in that, said two masts (1) all connect the following joint arm (2) of said jib (6).
4. the device of raising jib lateral loading ability according to claim 1 is characterized in that, said connecting device (5) is arm-tie or rope row.
5. a method that improves jib lateral loading ability is characterized in that, comprises the steps:
Step 1 is gathered side senser data;
Step 2 if the data of sensor are then controlled said tensioning hoisting mechanism and put rope greater than the upper limit of preset range, is received rope if the data of sensor, are then controlled said tensioning hoisting mechanism less than the lower limit of preset range.
6. method according to claim 5 is characterized in that, in step 2, realizes said tensioning hoisting mechanism receipts rope or puts rope through the controlled hydraulic system solenoid directional control valve.
7. a hoisting crane comprises jib, it is characterized in that, said jib (6) is provided with the device of any described raising jib (6) lateral loading ability in the claim 1 to 4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102004135A CN102701086A (en) | 2012-06-18 | 2012-06-18 | Method and device for improving lateral load capacity of arm support, and crane |
| PCT/CN2012/085806 WO2013189154A1 (en) | 2012-06-18 | 2012-12-04 | Method and device for improving lateral load capacity of arm support, and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102004135A CN102701086A (en) | 2012-06-18 | 2012-06-18 | Method and device for improving lateral load capacity of arm support, and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102701086A true CN102701086A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102004135A Pending CN102701086A (en) | 2012-06-18 | 2012-06-18 | Method and device for improving lateral load capacity of arm support, and crane |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102701086A (en) |
| WO (1) | WO2013189154A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103324094A (en) * | 2013-05-14 | 2013-09-25 | 中联重科股份有限公司 | On-line solving device and method for boom nonlinear deformation |
| WO2013189154A1 (en) * | 2012-06-18 | 2013-12-27 | 湖南三一智能控制设备有限公司 | Method and device for improving lateral load capacity of arm support, and crane |
| CN103613008A (en) * | 2013-12-18 | 2014-03-05 | 三一汽车起重机械有限公司 | Superlift pre-tightening device and crane |
| CN104713786A (en) * | 2015-03-17 | 2015-06-17 | 项俊俊 | Device for detecting strength of diamond grinding disk |
| CN104743455A (en) * | 2013-12-30 | 2015-07-01 | 西门子公司 | Load Guiding Arrangement |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477793B (en) * | 2014-12-15 | 2016-08-24 | 中联重科股份有限公司 | Crane super lifting device and crane |
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| JP2008120525A (en) * | 2006-11-13 | 2008-05-29 | Tadano Ltd | Crane device with telescopic boom |
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| CN101700856A (en) * | 2009-10-30 | 2010-05-05 | 上海三一科技有限公司 | Hydraulic system for automatically controlling mast retraction of crawler crane |
| CN101927967A (en) * | 2009-06-19 | 2010-12-29 | 上海三一科技有限公司 | Method and structure for controlling and reinforcing lateral stability of crawler crane boom |
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| DE202008009281U1 (en) * | 2008-07-10 | 2009-11-12 | Liebherr-Werk Ehingen Gmbh | crane |
| DE102009048846A1 (en) * | 2009-10-09 | 2011-04-21 | Liebherr-Werk Ehingen Gmbh | crane |
| CN102381643B (en) * | 2011-11-08 | 2013-03-13 | 中联重科股份有限公司 | Tower crane |
| CN102701086A (en) * | 2012-06-18 | 2012-10-03 | 上海三一科技有限公司 | Method and device for improving lateral load capacity of arm support, and crane |
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- 2012-06-18 CN CN2012102004135A patent/CN102701086A/en active Pending
- 2012-12-04 WO PCT/CN2012/085806 patent/WO2013189154A1/en active Application Filing
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| DE20002179U1 (en) * | 2000-02-08 | 2000-08-03 | Liebherr Werk Ehingen | Mobile crane |
| JP2008120525A (en) * | 2006-11-13 | 2008-05-29 | Tadano Ltd | Crane device with telescopic boom |
| DE102008035583A1 (en) * | 2008-07-30 | 2010-02-11 | Liebherr-Werk Ehingen Gmbh | Telescopic boom for crane i.e. mobile crane, has anchoring cylinders arranged in support braces for defined anchoring of suspension rope, where free ends of suspension rope are fastened to anchoring cylinders |
| CN101927967A (en) * | 2009-06-19 | 2010-12-29 | 上海三一科技有限公司 | Method and structure for controlling and reinforcing lateral stability of crawler crane boom |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013189154A1 (en) * | 2012-06-18 | 2013-12-27 | 湖南三一智能控制设备有限公司 | Method and device for improving lateral load capacity of arm support, and crane |
| CN103324094A (en) * | 2013-05-14 | 2013-09-25 | 中联重科股份有限公司 | On-line solving device and method for boom nonlinear deformation |
| CN103324094B (en) * | 2013-05-14 | 2016-05-04 | 中联重科股份有限公司 | Jib nonlinear deformation line solver device and method |
| CN103613008A (en) * | 2013-12-18 | 2014-03-05 | 三一汽车起重机械有限公司 | Superlift pre-tightening device and crane |
| CN103613008B (en) * | 2013-12-18 | 2015-10-28 | 三一汽车起重机械有限公司 | Pre-tightening apparatus and hoisting crane are surpassed |
| CN104743455A (en) * | 2013-12-30 | 2015-07-01 | 西门子公司 | Load Guiding Arrangement |
| US9840401B2 (en) | 2013-12-30 | 2017-12-12 | Siemens Aktiengesellschaft | Load guiding arrangement |
| US10370223B2 (en) | 2013-12-30 | 2019-08-06 | Siemens Gamesa Renewable Energy A/S | Load guiding arrangement |
| CN104713786A (en) * | 2015-03-17 | 2015-06-17 | 项俊俊 | Device for detecting strength of diamond grinding disk |
| CN104713786B (en) * | 2015-03-17 | 2017-09-01 | 项俊俊 | Diamond disk intensity detecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013189154A1 (en) | 2013-12-27 |
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Application publication date: 20121003 |