CN115180531A - Spatial layout structure for non-twisting of tower crane hoisting steel wire rope - Google Patents
Spatial layout structure for non-twisting of tower crane hoisting steel wire rope Download PDFInfo
- Publication number
- CN115180531A CN115180531A CN202210902179.4A CN202210902179A CN115180531A CN 115180531 A CN115180531 A CN 115180531A CN 202210902179 A CN202210902179 A CN 202210902179A CN 115180531 A CN115180531 A CN 115180531A
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- pulley block
- trolley
- arm support
- lifting
- pulley
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 100
- 238000004804 winding Methods 0.000 claims abstract description 5
- 230000002265 prevention Effects 0.000 claims 1
- 238000007665 sagging Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
- B66C23/84—Slewing gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
- B66D3/08—Arrangements of sheaves
Abstract
The invention relates to a spatial layout structure without twisting of a tower crane hoisting steel wire rope. A rope passing pulley is arranged on each arm support and the rotary tower body, a lifting steel wire rope led out by a lifting mechanism sequentially passes through the rope passing pulley of the lifting arm and the rope passing pulley block of the rotary tower body and enters a trolley pulley block, the steel wire rope of the front lifting mechanism enters a front trolley pulley block, and the steel wire rope of the rear lifting mechanism enters a rear trolley pulley block. The front and rear trolleys correspond to the front and rear pulley blocks of the hook, the hook is provided with four pulley blocks, and the steel wire rope penetrates through the trolley pulley block and the hook pulley block and then is connected to the anti-twisting device of the arm head. The fixed pulley blocks are arranged on the boom arm support and the rotary tower body, and large sagging caused by self weight can be avoided. The trolley pulley block and the hook pulley block of the left arm support and the right arm support adopt a mirror-image rope winding mode, and the problem of steel wire rope twisting is effectively solved.
Description
Technical Field
The invention relates to a spatial layout structure for a tower crane hoisting steel wire rope without twisting, belonging to the technical field of tower cranes.
Background
The tower crane with super-tonnage has large hoisting moment, if a single hoisting mechanism is adopted to hoist the steel wire rope in a single-stranded way, the diameter of the required steel wire rope is too large, the large-diameter steel wire rope not only wastes time and labor in installation and disassembly, but also has difficult production and manufacture and high production cost. The double-arm parallel tower crane is provided with a front lifting mechanism and a rear lifting mechanism on each arm support, and the stress of each lifting steel wire rope is reduced by increasing the number of the lifting steel wire ropes, so that the aims of small overall dimension, light weight and large lifting weight are fulfilled. In view of this, a reasonable spatial layout of hoisting steel cables is required for a tower crane with multiple hoisting mechanisms and multiple steel cables, so as to realize the cooperative work of the multiple steel cables and prevent interference and twisting among the steel cables.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a spatial layout structure for non-twisting of a tower crane lifting steel wire rope, which solves the twisting problem when an oversized lifting height and a plurality of strands of lifting steel wire ropes work cooperatively.
The invention is realized by the following technical scheme: the utility model provides a tower machine plays to rise spatial layout structure that wire rope does not twist which characterized in that: the lifting mechanism of the left arm frame and the lifting mechanism of the right arm frame are staggered along the arm joint direction;
the front and rear lifting mechanisms of the left arm frame comprise a left rear lifting mechanism and a left front lifting mechanism, a left rear rope passing pulley and a left front rope passing pulley are arranged on a lifting arm of the left arm frame, and a left rope passing pulley block I and a left rope passing pulley block II are arranged on the revolving tower body; the left arm frame is provided with a front load-carrying trolley and a rear load-carrying trolley, the left rear trolley is provided with a left rear trolley pulley block, and the left front trolley is provided with a left front trolley pulley block; two groups of pulley blocks are arranged on the left side of the lifting hook corresponding to the front and the rear load-carrying trolleys on the left arm frame, and are respectively a left lifting hook rear pulley block and a left lifting hook front pulley block; an arm head of the left arm support is provided with an anti-twist device I and an anti-twist device II;
the front and rear lifting mechanisms of the right arm frame comprise a right rear lifting mechanism and a right front lifting mechanism, a right rear rope passing pulley and a right front rope passing pulley are arranged on a lifting arm of the right arm frame, and a right rope passing pulley block I and a right rope passing pulley block II are arranged on the rotary tower body; a front load trolley and a rear load trolley are arranged on the right arm frame, the right rear trolley is provided with a right rear trolley pulley block, and the right front trolley is provided with a right front trolley pulley block; two groups of pulley blocks are arranged on the right side of the lifting hook corresponding to the front and the rear load-carrying trolleys on the right arm frame, and are respectively a lifting hook right rear pulley block and a lifting hook right front pulley block; and an anti-twist device III and an anti-twist device IV are arranged at the arm head of the right arm support.
A lifting mechanism support I is arranged below the rear left lifting mechanism, and the rear left lifting mechanism is fixed on a left arm support by the lifting mechanism support, so that the height of the rear left lifting mechanism in the vertical direction is higher than that of the front left lifting mechanism;
and a lifting mechanism support II is arranged below the rear right lifting mechanism and fixes the rear right lifting mechanism on the right arm support, so that the height of the rear right lifting mechanism in the vertical direction is higher than that of the front right lifting mechanism.
A hoisting steel wire rope I led out from a left rear hoisting mechanism of the left arm frame sequentially passes through a left front rope passing pulley on the boom and a left rope passing pulley block I on the slewing tower body, enters a left rear trolley pulley block, and is connected to an anti-twisting device I at the arm head after being wound between the left rear trolley pulley block and the left rear pulley block of the lifting hook; a hoisting steel wire rope II led out from a left front hoisting mechanism of the left arm frame sequentially passes through a left rear rope passing pulley of the crane boom and a left rope passing pulley block II of the slewing tower body, enters a left front trolley pulley block, and is connected to an arm head anti-twisting device II after being wound between the left front trolley pulley block and a left front pulley block of the lifting hook;
a lifting steel wire rope III led out from a right rear lifting mechanism of the right arm frame passes through a right front rope passing pulley on the cargo boom and a right rope passing pulley block II on the slewing tower body in sequence, enters a right rear trolley pulley block, and is connected to an anti-twisting device II at the head of the boom after being wound between the right rear trolley pulley block and the right rear pulley block of the lifting hook; and a lifting steel wire rope IV led out from a right front lifting mechanism of the right arm frame passes through a right rear rope passing pulley of the cargo boom, a right rope passing pulley block I of the slewing tower body, enters the right front trolley pulley block, and is connected to an anti-twisting device I at the arm head after being wound between the right front trolley pulley block and the right front pulley block of the lifting hook.
The invention has the beneficial effects that: aiming at the tower crane with two parallel arms, the mode of four steel wire ropes of the four hoisting mechanisms is adopted, so that the stress of each steel wire rope is reduced during large-tonnage hoisting, and the diameter of the steel wire rope of the ultra-large tower crane cannot be too large. The multistage pulley blocks are arranged on the arm support, the rotary tower body and the trolley, so that the steel wire rope is prevented from excessively drooping due to self weight, smooth threading of the steel wire rope is realized, and interference of the steel wire rope with other structures is avoided. A support is arranged below the rear hoisting mechanism, so that the rear hoisting mechanism is higher than the front hoisting mechanism in the vertical direction, and the interference of two steel wire ropes on the same arm support is avoided. The trolley hook pulley blocks of the left arm support and the right arm support adopt a mirror-image rope winding mode, the problem of wire rope twisting is effectively solved, and the cooperation operation of four trolleys of four hoisting mechanisms is ensured.
Drawings
The invention is further illustrated below with reference to the figures and examples.
FIG. 1 is a schematic spatial layout of a hoisting cable of the present invention;
FIG. 2 is a top plan view of a spatial layout of a hoisting mechanism of the present invention;
FIG. 3 is a schematic view of the spatial layout of the hoisting mechanism of the left arm support of the present invention;
FIG. 4 is a schematic diagram of the spatial layout of the hoisting mechanism of the right arm support of the invention;
fig. 5 is a schematic diagram of the space layout of the left trolley pulley block of the left arm support.
In the figure: 100. a left arm support; 200. a right arm support; 300. a hook;
101. a left rear hoisting mechanism; 102. a left front hoisting mechanism; 103. a left rear rope passing pulley; 104. a left front rope passing pulley; 105. a left rope-passing pulley block I; 106. a left rope-passing pulley block II; 107. a left rear trolley pulley block; 108. a left front trolley pulley block; 109. a left rear pulley group of the hook; 110. a left front pulley block of the hook; 111. an anti-twist device I; 112. an anti-twist device II; 113. a hoisting mechanism support I; 114. lifting a steel wire rope I; 115. hoisting a steel wire rope II;
201. a right rear hoisting mechanism; 202. a right front hoisting mechanism; 203. a right rear rope passing pulley; 204. a right front passing rope pulley; 205. a right rope-passing pulley block I; 206. a right rope-passing pulley block II; 207. a right rear trolley pulley block; 208. a right front trolley pulley block; 209. a lifting hook right rear pulley block; 210. a hook right front pulley block; 211. an anti-twist device III; 212. an anti-twist device IV; 213. a hoisting mechanism support II; 214. lifting a steel wire rope III; 215. and lifting a steel wire rope IV.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The spatial layout structure without twisting of the tower crane hoisting steel wire rope as shown in fig. 1 to fig. 4 is characterized in that: the lifting mechanism comprises a left arm support 100 and a right arm support 200, wherein the left arm support 100 and the right arm support 200 are respectively provided with a front lifting mechanism and a rear lifting mechanism, and the two lifting mechanisms of the right arm support 200 are arranged in a staggered manner with the lifting mechanisms of the left arm support 100 along the arm section direction;
the front and rear lifting mechanisms of the left arm frame 100 comprise a left rear lifting mechanism 101 and a left front lifting mechanism 102, a left rear rope passing pulley 103 and a left front rope passing pulley 104 are arranged on a lifting arm of the left arm frame 100, and a left rope passing pulley block I105 and a left rope passing pulley block II 106 are arranged on the revolving tower body; the left arm support 100 is provided with a front load-carrying trolley and a rear load-carrying trolley, the left rear trolley is provided with a left rear trolley pulley block 107, and the left front trolley is provided with a left front trolley pulley block 108; two groups of pulley blocks are arranged on the left side of the hook 300 corresponding to the front and rear load-carrying trolleys on the left arm frame 100, namely a hook left rear pulley block 109 and a hook left front pulley block 110; an arm head of the left arm support 100 is provided with an anti-twist device I111 and an anti-twist device II 112;
the front and rear two hoisting mechanisms of the right arm frame 200 comprise a right rear hoisting mechanism 201 and a right front hoisting mechanism 202, a right rear rope passing pulley 203 and a right front rope passing pulley 204 are arranged on a boom of the right arm frame 200, and a right rope passing pulley block I205 and a right rope passing pulley block II 206 are arranged on the revolving tower body; a front and a rear load-carrying trolleys are arranged on the right arm support 200, a right rear trolley is provided with a right rear trolley pulley block 207, and a right front trolley is provided with a right front trolley pulley block 208; two groups of pulley blocks are arranged on the right side of the lifting hook 300 corresponding to the front and the rear load-carrying trolleys on the right arm frame 200, namely a lifting hook right rear pulley block 209 and a lifting hook right front pulley block 210; and a torsion-proof device III 211 and a torsion-proof device IV 212 are arranged at the arm head of the right arm support 200.
A hoisting mechanism bracket I113 is arranged below the left rear hoisting mechanism 101, and the left rear hoisting mechanism 101 is fixed on the left arm frame 100 by the hoisting mechanism bracket 113, so that the height of the left rear hoisting mechanism 101 in the vertical direction is higher than that of the left front hoisting mechanism 102;
a lifting mechanism support II 213 is arranged below the right rear lifting mechanism 201, and the right rear lifting mechanism 201 is fixed on the right arm support 200 by the lifting mechanism support II 213, so that the height of the right rear lifting mechanism 201 in the vertical direction is higher than that of the right front lifting mechanism 202.
A hoisting steel wire rope I114 led out from a left rear hoisting mechanism 101 of the left arm support 100 sequentially passes through a left front rope passing pulley 104 on a boom, a left rope passing pulley block I105 on a rotary tower body and enters a left rear trolley pulley block 107, and after a rope is wound between the left rear trolley pulley block 107 and a hook left rear pulley block 109, the hoisting steel wire rope I is connected to an anti-twisting device I111 at an arm head; a hoisting steel wire rope II 115 led out from a left front hoisting mechanism 102 of the left arm support 100 sequentially passes through a crane boom left rear rope passing pulley 103, a rotary tower body left rope passing pulley block II 106 and enters a left front trolley pulley block 108, and after rope winding is carried out between the left front trolley pulley block 108 and a lifting hook left front pulley block 110, the hoisting steel wire rope II is connected to an arm head anti-twisting device II 112;
a lifting steel wire rope III 214 led out from a right rear lifting mechanism 201 of the right arm support 200 passes through a right front rope passing pulley 204 on a lifting arm and a right rope passing pulley block II 206 on a rotary tower body in sequence, enters a right rear trolley pulley block 207, and is connected to an anti-twisting device II 212 at the arm head after being wound between the right rear trolley pulley block 207 and a lifting hook right rear pulley block 209; a lifting steel wire rope IV 215 led out from a right front lifting mechanism 202 of the right arm support 200 sequentially passes through a right rear rope passing pulley 203 of a cargo boom, a right rope passing pulley block I205 of a rotary tower body, enters a right front trolley pulley block 208, and is connected to an arm head anti-twisting device I211 after being wound between the right front trolley pulley block 208 and a hook right front pulley block 120.
By designing the layout of the lifting mechanism, the lifting arm frame is provided with a rope passing pulley, the rotary tower body is provided with a rope passing pulley block, four front trolleys and four rear trolleys are arranged, four groups of hook pulley blocks are arranged corresponding to the four trolleys, so that the lifting steel wire rope is in a spatial layout state, the torsion resistance of the steel wire rope is improved by more than 20 times, and the problem of twisting of the steel wire rope under the condition of an overlarge lifting height is thoroughly solved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides a tower machine plays to rise spatial layout structure that wire rope does not twist which characterized in that: the lifting mechanism comprises a left arm support (100) and a right arm support (200), wherein the left arm support (100) and the right arm support (200) are respectively provided with a front lifting mechanism and a rear lifting mechanism, and the two lifting mechanisms of the right arm support (200) are arranged in a staggered manner with the lifting mechanisms of the left arm support (100) along the arm joint direction;
the front lifting mechanism and the rear lifting mechanism of the left arm support (100) comprise a left rear lifting mechanism (101) and a left front lifting mechanism (102), a left rear rope passing pulley (103) and a left front rope passing pulley (104) are arranged on a lifting arm of the left arm support (100), and a left rope passing pulley block I (105) and a left rope passing pulley block II (106) are arranged on the revolving tower body; a left arm support (100) is provided with a front load trolley and a rear load trolley, the left rear trolley is provided with a left rear trolley pulley block (107), and the left front trolley is provided with a left front trolley pulley block (108); two groups of pulley blocks are arranged on the left side of the hook (300) corresponding to the front and rear load-carrying trolleys on the left arm support (100), namely a hook left rear pulley block (109) and a hook left front pulley block (110); an anti-twist device I (111) and an anti-twist device II (112) are arranged at the arm head of the left arm support (100);
the front and rear two hoisting mechanisms of the right arm support (200) comprise a right rear hoisting mechanism (201) and a right front hoisting mechanism (202), a right rear rope passing pulley (203) and a right front rope passing pulley (204) are arranged on a boom of the right arm support (200), and a right rope passing pulley block I (205) and a right rope passing pulley block II (206) are arranged on the revolving tower body; a front load trolley and a rear load trolley are arranged on the right arm support (200), the right rear trolley is provided with a right rear trolley pulley block (207), and the right front trolley is provided with a right front trolley pulley block (208); two groups of pulley blocks are arranged on the right side of the lifting hook (300) corresponding to the front and the rear load-carrying trolleys on the right arm support (200), and are respectively a lifting hook right rear pulley block (209) and a lifting hook right front pulley block (210); and an anti-twist device III (211) and an anti-twist device IV (212) are arranged at the arm head of the right arm support (200).
2. The spatial layout structure of claim 1, which is characterized in that: a hoisting mechanism support I (113) is arranged below the left rear hoisting mechanism (101), and the left rear hoisting mechanism (101) is fixed on the left arm support (100) by the hoisting mechanism support (113), so that the height of the left rear hoisting mechanism (101) in the vertical direction is higher than that of the left front hoisting mechanism (102);
a hoisting mechanism support II (213) is arranged below the rear right hoisting mechanism (201), and the rear right hoisting mechanism (201) is fixed on the right arm support (200) by the hoisting mechanism support II (213), so that the height of the rear right hoisting mechanism (201) in the vertical direction is higher than that of the front right hoisting mechanism (202).
3. The spatial layout structure of claim 1, which is characterized in that: a hoisting steel wire rope I (114) led out from a left rear hoisting mechanism (101) of the left arm support (100) sequentially passes through a left front rope passing pulley (104) on the boom, a left rope passing pulley block I (105) on the rotary tower body and enters a left rear trolley pulley block (107), and after rope winding is carried out between the left rear trolley pulley block (107) and a left rear pulley block (109) of the lifting hook, the hoisting steel wire rope I is connected to an anti-twisting device I (111) at the arm head; a hoisting steel wire rope II (115) led out from a left front hoisting mechanism (102) of a left arm support (100) sequentially passes through a left rear rope passing pulley (103) of a cargo boom, a left rope passing pulley block II (106) of a rotary tower body and enters a left front trolley pulley block (108), and after rope winding is carried out between the left front trolley pulley block (108) and a left front pulley block (110) of a lifting hook, the hoisting steel wire rope II is connected to a torsion-proof device II (112) at the arm head;
a lifting steel wire rope III (214) led out from a rear right lifting mechanism (201) of the right arm support (200) passes through a front right rope passing pulley (204) on the cargo boom, a right rope passing pulley block II (206) on the rotary tower body and enters a rear right trolley pulley block (207), and after being wound between the rear right trolley pulley block (207) and a right rear hook pulley block (209), the lifting steel wire rope III is connected to an anti-twisting device II (212) at the arm head; a lifting steel wire rope IV (215) led out from a right front lifting mechanism (202) of a right arm support (200) passes through a boom right rear rope passing pulley (203), a rotary tower body right rope passing pulley block I (205) and enters a right front trolley pulley block (208), and after being wound between the right front trolley pulley block (208) and a hook right front pulley block (120), the lifting steel wire rope IV is connected to an arm head torsion prevention device I (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210902179.4A CN115180531A (en) | 2022-07-29 | 2022-07-29 | Spatial layout structure for non-twisting of tower crane hoisting steel wire rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210902179.4A CN115180531A (en) | 2022-07-29 | 2022-07-29 | Spatial layout structure for non-twisting of tower crane hoisting steel wire rope |
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| Publication Number | Publication Date |
|---|---|
| CN115180531A true CN115180531A (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210902179.4A Pending CN115180531A (en) | 2022-07-29 | 2022-07-29 | Spatial layout structure for non-twisting of tower crane hoisting steel wire rope |
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| CN (1) | CN115180531A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4949854A (en) * | 1988-12-09 | 1990-08-21 | Harnischfeger Corporation | Anti-sway crane reeving apparatus |
| CN101085668A (en) * | 2007-06-29 | 2007-12-12 | 大连华锐股份有限公司 | Space interference-resistant arrangement for multiple hanging points crane hoisting wire rope |
| CN101691190A (en) * | 2009-09-29 | 2010-04-07 | 秦皇岛天业通联重工股份有限公司 | Bulk cargo crane with energy saving and high efficiency |
| CN202080837U (en) * | 2011-05-27 | 2011-12-21 | 梁宏国 | Double-boom circulation crane |
| CN104340865A (en) * | 2014-10-21 | 2015-02-11 | 太重（天津）滨海重型机械有限公司 | Crane and lifting operation mechanism thereof |
| CN110294427A (en) * | 2019-05-23 | 2019-10-01 | 山东电力建设第三工程有限公司 | A kind of method of large size derrick crane more change owner hoisting system wirerope |
| CN111071927A (en) * | 2020-01-16 | 2020-04-28 | 三一海洋重工有限公司 | Anti-rolling winding device and rubber-tyred container gantry crane |
| CN114084810A (en) * | 2021-11-22 | 2022-02-25 | 徐州建机工程机械有限公司 | Tower crane upper structure and flat-top tower crane |
| CN114084809A (en) * | 2021-11-19 | 2022-02-25 | 徐州建机工程机械有限公司 | Double-arm tower crane and multiplying power conversion method |
-
2022
- 2022-07-29 CN CN202210902179.4A patent/CN115180531A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4949854A (en) * | 1988-12-09 | 1990-08-21 | Harnischfeger Corporation | Anti-sway crane reeving apparatus |
| CN101085668A (en) * | 2007-06-29 | 2007-12-12 | 大连华锐股份有限公司 | Space interference-resistant arrangement for multiple hanging points crane hoisting wire rope |
| CN101691190A (en) * | 2009-09-29 | 2010-04-07 | 秦皇岛天业通联重工股份有限公司 | Bulk cargo crane with energy saving and high efficiency |
| CN202080837U (en) * | 2011-05-27 | 2011-12-21 | 梁宏国 | Double-boom circulation crane |
| CN104340865A (en) * | 2014-10-21 | 2015-02-11 | 太重（天津）滨海重型机械有限公司 | Crane and lifting operation mechanism thereof |
| CN110294427A (en) * | 2019-05-23 | 2019-10-01 | 山东电力建设第三工程有限公司 | A kind of method of large size derrick crane more change owner hoisting system wirerope |
| CN111071927A (en) * | 2020-01-16 | 2020-04-28 | 三一海洋重工有限公司 | Anti-rolling winding device and rubber-tyred container gantry crane |
| CN114084809A (en) * | 2021-11-19 | 2022-02-25 | 徐州建机工程机械有限公司 | Double-arm tower crane and multiplying power conversion method |
| CN114084810A (en) * | 2021-11-22 | 2022-02-25 | 徐州建机工程机械有限公司 | Tower crane upper structure and flat-top tower crane |
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Application publication date: 20221014 |