CN108706480A - Tower crane main rope rope supporting device - Google Patents
Tower crane main rope rope supporting device Download PDFInfo
- Publication number
- CN108706480A CN108706480A CN201811012123.1A CN201811012123A CN108706480A CN 108706480 A CN108706480 A CN 108706480A CN 201811012123 A CN201811012123 A CN 201811012123A CN 108706480 A CN108706480 A CN 108706480A
- Authority
- CN
- China
- Prior art keywords
- rope
- arm body
- trolley
- lifting arm
- support rope
- Prior art date
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 230000033001 locomotion Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007665 sagging Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- B66C23/64—Jibs
Abstract
The invention belongs to tower crane technical fields, specifically disclose a kind of tower crane main rope rope supporting device, including lifting arm body and the trolley being slidably mounted on lifting arm body, further include Tuo Sheng mechanisms, the Tuo Sheng mechanisms include several support rope rollers for being set to crane arm body lower part, support rope roller one end is hinged on lifting arm body, being equipped at support rope roller and the hinge joint of lifting arm body makes support rope roller be located at the revolving structure on the downside of steel wire rope, and the trolley is equipped with the trigger architecture of driving support rope roller rotation.This programme enables trolley to pass through Tuo Sheng mechanisms by the way that trigger architecture and revolving structure is arranged, and Shi Tuosheng mechanisms will not interfere with the normal operation of trolley.And the support rope roller in this programme is set to crane arm body lower part, and total compact is simple in structure, and load is small.
Description
Technical field
The invention belongs to tower crane technical field more particularly to a kind of tower crane main rope rope supporting devices.
Background technology
Tower crane, i.e. " derrick crane " abbreviation, also known as " tower crane ".It is for a kind of lifting equipment in construction.With
Being on the increase for skyscraper and Large Scale Construction Engineering, the demand to large-scale derrick crane also accordingly increases.Currently, some
The jib length of large-scale derrick crane has reached 80 meters, also, the biggest lifting capacity is also increasing, hoist rope
Diameter also overstriking therewith.In this way, necessarily will produce hoist rope excessive problem of sagging amount of deflection in tower crane zero load.Such as figure
Shown in 1, relative to a length of 80 meters of the tower crane of crane arm, the sagging amount of deflection H of maximum of hoist rope may reach 10 meters or more.
In this case, not only danger can be brought to construction；Withdrawing rope time when can also increase lifting reduces tower crane construction effect
Rate.
All it is often that more large-scale derrick cranes and other Architectural Equipments work at the same time, each other in Large Scale Construction Engineering
Between work range be overlapping.It is asked in order to avoid generating interference between each tower crane and between other Architectural Equipments or building
Topic, the conventional method of use is exactly to increase tower crane tower body height, this can undoubtedly increase equipment cost, meanwhile, it can also increase tower crane
The risk of running；It is constant in other factors if reducing the sagging amount of deflection of hoist rope using the method for increasing suspension hook weight
In the case of, and the biggest lifting capacity of tower crane will certainly be reduced.
Invention content
The purpose of the present invention is to provide a kind of tower crane main rope rope supporting devices simple in structure, load is smaller.
In order to achieve the above object, base case of the invention is：Tower crane main rope rope supporting device, including crane arm sheet
Body and the trolley being slidably mounted on lifting arm body, further include Tuo Sheng mechanisms, the Tuo Sheng mechanisms include several settings
In the support rope roller of crane arm body lower part, support rope roller one end is hinged on lifting arm body, support rope roller and lifting arm body
Hinge joint at be equipped with support rope roller made to be located at the revolving structure on the downside of steel wire rope, the trolley is equipped with driving support rope roller turn
Dynamic trigger architecture.
The operation principle and advantageous effect of this base case are：In tower crane operational process, the main steel of trolley both sides
Cord is respectively positioned on the support rope roller of lifting arm body, and support rope roller holds the steel wire rope of trolley both sides, can be to avoid lifting
The steel wire rope sag amount of deflection of trolley both sides is excessive.Trigger architecture applies one to support rope roller and turns when trolley is close to Tuo Sheng mechanisms
Dynamic power makes support rope roller rotate, i.e. support rope roller is detached from the downside of steel wire rope, and support rope roller, which is located in the middle part of trolley, at this time runs rail
The side of mark enables trolley to pass through Tuo Sheng mechanisms.When trolley completely by Tuo Sheng mechanisms after, support rope roller lose
The power for going trigger architecture to apply it, support rope roller resets under the action of revolving structure to be again positioned on the downside of steel wire rope, and support is made to restrict
Roller continues to be supported steel wire rope.This programme enables trolley to pass through by the way that trigger architecture and revolving structure is arranged
Tuo Sheng mechanisms, Shi Tuosheng mechanisms will not interfere with the normal operation of trolley.And the support rope roller in this programme is set to lifting
Arm body lower part, total compact is simple in structure, and load is small.
Further, the revolving structure includes the central shaft being fixedly mounted on lifting arm body, and peace is rotated on central shaft
The first elastic component for driving rotary sleeve to reset is equipped with equipped with rotary sleeve, between rotary sleeve and central shaft, the support rope roller is solid
Surely be connected on rotary sleeve, under original state, support rope roller under the action of the first elastic component with the running orbit phase of trolley
Mutually vertical, rotary sleeve is rotatablely equipped with trigger wheel close to the side of support rope roller.So set, the first elastic component ensure support rope roller with
The running orbit of trolley is mutually perpendicular to, and support rope roller is enable to hold main rope.
Further, the trigger architecture includes the frizzen being fixedly mounted on trolley, the both ends difference of frizzen
Positioned at the both sides of trolley, the both ends of frizzen are wedge shape, and the inclined-plane of wedge shape end and trigger wheel face.So
Setting, can drive rotary sleeve to rotate when frizzen end chamfer is contacted with trigger wheel.
Further, the frizzen includes the fixed link being fixedly mounted on trolley and the work set on fixed link both ends
Lever, two are equipped with buffer part between motion bar and fixed link, the buffer part by motion bar and is consolidated by the second elastic component
Fixed pole connects.So set, can be offset to the reaction force of frizzen to trigger wheel by the second elastic component, ensure
The operation stability of weight trolley.
Further, first elastic component is torsional spring, and second elastic component is spring, and spring and torsional spring are in the market
The resource being easy to get, and it is cheap.
Further, hoisting mechanism is additionally provided on the lifting arm body, the hoisting mechanism is rotatably installed in including two
Screw rod on lifting arm body, two screw rods are located at the both sides of central shaft, lift lever, lift lever are equipped on two screw rods
Equipped with the nut coordinated with screw rod, there are two what is be arranged respectively with two screw coaxials to turn for rotation connection on lifting arm body
Ring has been fixedly connected with slide bar in two changes, and two lift levers are slidably connected on two slide bars, are rotated on central shaft respectively
The first partial gear being fixedly connected with rotary sleeve is installed, being installed on two screw rods can be with the first incomplete tooth
The first transmission gear of engagement is taken turns, change is located at the top of rotary sleeve, and lift lever is restricted with support when lift lever and change contact
Roller is located at same level, and the second partial gear being fixedly connected with rotary sleeve, two changes are rotatablely equipped on central shaft
On be installed with the second transmission gear that can be engaged with the second partial gear.So set, passing through support in trolley
Main rope can upwards be lifted up by hoisting mechanism when rope roller, ensures that support rope roller can be without hindrance on the downside of main rope
It withdraws.
Description of the drawings
Fig. 1 is the structural schematic diagram of tower crane main rope rope supporting device embodiment 1 of the present invention；
Fig. 2 is the sectional view of B-B in Fig. 1；
Fig. 3 is the structural schematic diagram of embodiment 2；
The sectional view of A-A in Fig. 4 Fig. 3；
Fig. 5 is that trolley passes through the process schematic of support rope roller in embodiment 2.
Specific implementation mode
Below by specific implementation mode, the present invention is described in further detail：
Reference sign：Trolley 1, frizzen 2, supporting beam 3, support rope roller 4, trigger wheel 5, lift lever 6, slide bar 7,
Second transmission gear 8, rotary sleeve 9, central shaft 10, the second partial gear 11, central sill 12, bottom girder 13, reinforcing beam 14, king wire
Rope 15, T-shaped slider 16, the first transmission gear 17, the first partial gear 18, screw rod 19.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of tower crane main rope rope supporting device, including lifting arm body, it is slidably mounted on lifting
Trolley 1 on arm body and the Tuo Sheng mechanisms being arranged on lifting arm body.Lifting arm body includes two mutually flat
Capable lower boom is installed with several supporting beams 3 between two lower booms.Trolley 1 include two vertical struts, two
It is fixedly connected with bottom girder 13 between root strut lower end, central sill 12, bottom girder 13 and central sill are fixedly connected between two struts middle parts
Two reinforcing beams 14 arranged in a crossed manner are fixedly connected between 12, two strut upper ends are slidably mounted on two lower booms respectively
On, there are spacing between central sill 12 and supporting beam 3, the line wheel group for being useful for folding and unfolding main rope 15 is fixedly mounted on central sill 12.
If Tuo Sheng mechanisms include dry care rope roller 4, if dry care rope roller 4 is respectively arranged on the lower surface of several supporting beams 3, support
It restricts and is equipped with swing mechanism between roller 4 and supporting beam 3, swing mechanism includes the central shaft 10 for being fixedly mounted on 3 lower surface of supporting beam,
Central shaft 10 is vertically arranged and 10 lower end of central shaft is located at 12 top of central sill, is rotatablely equipped with rotary sleeve 9 on central shaft 10, is rotated
The first elastic component for driving rotary sleeve 9 to reset is equipped between set 9 and central shaft 10,4 one end of support rope roller is fixedly connected on rotation
On pivoted housing 9 and support rope roller 4 is horizontally disposed, and the first elastic component is torsional spring, under original state, makes support rope roller 4 and support by torsional spring
Beam 3 is mutually parallel.Rotary sleeve 9 is rotatablely equipped with trigger wheel 5 close to the side of support rope roller 4.It is fixed on the central sill 12 of trolley 1
Frizzen 2 is installed, frizzen 2 is mutually parallel with lower boom, and the both ends of frizzen 2 are located at the both sides of trolley 1, touches
It includes fixed link and two motion bars to send out bar 2, and fixed link and motion bar are rectangular shaft, and fixed link is fixedly mounted on central sill 12
On, the both ends of fixed link offer sliding chamber, and two motion bars are slidably mounted on respectively in the cunning chamber at fixed link both ends, motion bar
The second elastic component is fixedly connected between the one end of sliding chamber far from motion bar, the second elastic component is spring.Two motion bars
End is equipped with inclined-plane, and inclined-plane and 5 face of trigger wheel on one side towards trigger wheel 5.
When it is implemented, the main rope 15 of 1 both sides of trolley is respectively positioned on support rope roller 4.Trolley 1 is in crane arm
On ontology during movement, when trolley 1 is close to support rope roller 4, the frizzen 2 on trolley 1 connects with trigger wheel 5 first
It touches, frizzen 2 applies the power for making it be moved to 1 traffic direction of trolley to trigger wheel 5, connects since trigger wheel 5 rotates
It is connected on rotary sleeve 9, and the rotational installation of rotary sleeve 9 is on the center shaft 10, so 5 stress of trigger wheel can drive rotary sleeve 9 in
Mandrel 10 rotates, and since support rope roller 4 is fixedly connected on rotary sleeve 9, so support rope roller can be as rotary sleeve 9 be by perpendicular to master
15 direction of steel wire rope is rotated to main rope 15 is parallel to, and trolley 1 continues to move ahead, and torsional spring ensures that trigger wheel 5 is close to trigger
Bar 2, until asking rope roller 4 to be completely parallel to main rope 15, to make trolley 1 pass through.When frizzen 2 and trigger wheel
When 5 contact, trigger wheel 5 can apply a reaction force to frizzen 2, since frizzen 2 includes fixed link and motion bar, fix
It is equipped with spring between bar and motion bar and is slidably connected, frizzen 2 is applied so trigger wheel 5 can be offset by the deformation of spring
The reaction force added ensures stationarity of the trolley 1 in moving process.
Embodiment 2
As shown in Fig. 3, Fig. 4, Fig. 5, difference lies in be additionally provided with elevator to the present embodiment in supporting beam 3 with embodiment 1
Structure, hoisting mechanism include two screw rods 19 being rotatably installed on 3 lower surface of supporting beam, and two screw rods 19 are located at central shaft
10 both sides, and screw rod 19 is located at side of the central shaft 10 far from support rope roller 4, is equipped with lift lever 6 on two screw rods 19, is promoted
Bar 6 is equipped with the nut coordinated with screw rod 19, is additionally provided with two changes in supporting beam 3, two changes are located at central shaft 10
Both sides, and two changes are coaxially disposed with two screw rods 19 respectively, and change upper surface is equipped with T-shaped slider 16, in supporting beam 3
The T shape sliding slots of annular are offered, T-shaped slider 16 is slidably connected in T shape sliding slots, connects between T-shaped slider 16 and T shape chute walls
It is connected to elastic piece.It has been fixedly connected with slide bar 7 in two changes, the cunning coordinated with slide bar 7 is offered on two lift levers 6
Hole, two lift levers 6 are slidably connected at respectively on two slide bars 7.The first partial gear 18 is rotatablely equipped on central shaft 10,
First partial gear 18 is fixedly connected with rotary sleeve 9, and the first partial gear 18 is located at the lower section of rotary sleeve 9, two spiral shells
The first transmission gear 17 that can be engaged with the first partial gear 18 is installed on bar 19.Change is located at rotary sleeve 9
Top, and lift lever 6 is located at same level with support rope roller 4 when lift lever 6 and change contact.It is rotatablely installed on central shaft 10
There are the second partial gear 11, the second partial gear 11 to be located at 9 top of rotary sleeve and be fixedly connected with rotary sleeve 9, two turn
The second transmission gear 8 that can be engaged with the second partial gear 11 is installed on ring.
During frizzen 2 pushes support rope roller 4 to be rotated with rotary sleeve 9, due to being rotatablely equipped with first on central shaft 10
Partial gear 18, and the first partial gear 18 is fixedly connected with rotary sleeve 9, so rotary sleeve 9 can drive first when rotating
Partial gear 18 rotates, due to being installed with the first transmission gear that can be engaged with the first partial gear 18 on screw rod 19
17, so the first partial gear 18 can drive 19 turns of the screw rod in left side by first transmission gear 17 in left side when rotating
Dynamic, the first partial gear 18 is not engaged with first transmission gear 17 on right side at this time, and screw rod 19 is driven when rotating by nut
The lift lever 6 in left side moves upwards, and can lift up main rope 15 upwards when lift lever 6 moves upwards, and keeps support rope roller 4 suitable
Being rotated in the downside of main rope 15 for profit simultaneously leaves main rope 15, when lift lever 6 is resisted by change lift lever 6 no longer on
It rises, screw rod 19, lift lever 6 and change at this time constitutes an entirety, and lift lever 6 is concordant with support rope roller 4, and support rope roller 4 rotates
When lift lever 6 can be driven to be rotated together with slide bar 7, so that lift lever 6 is left the downside of main rope 15.In 9 rotation process of rotary sleeve
Can be driven by the second partial gear 11 another lift lever 6 from perpendicular to 15 direction of main rope to being parallel to main rope
15 rotations, make the lift lever 6 on right side will not interfere with the movement of trolley.After trolley 1 passes through, rotary sleeve 9 is in torsional spring
Effect is lower to be resetted, and so that lift lever 6 and support rope roller 4 is resetted, support rope roller 4 continues to hold main rope 15.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific implementation mode can be used for explaining the content of claim.
Claims (6)
1. tower crane main rope rope supporting device, including lifting arm body and the trolley that is slidably mounted on lifting arm body,
It is characterized in that：Further include Tuo Sheng mechanisms, the Tuo Sheng mechanisms include several support rope rollers for being set to crane arm body lower part, institute
It states support rope roller one end to be hinged on lifting arm body, being equipped at support rope roller and the hinge joint of lifting arm body makes support rope roller be located at steel
Revolving structure on the downside of cord, the trolley are equipped with the trigger architecture of driving support rope roller rotation.
2. tower crane main rope rope supporting device according to claim 1, it is characterised in that：The revolving structure includes fixing
Central shaft on lifting arm body is rotatablely equipped with rotary sleeve on central shaft, is equipped with and uses between rotary sleeve and central shaft
In the first elastic component that driving rotary sleeve resets, the support rope roller is fixedly connected on rotary sleeve, and under original state, support rope roller exists
It is mutually perpendicular to the running orbit of trolley under the action of first elastic component, side rotational installation of the rotary sleeve close to support rope roller
There is trigger wheel.
3. tower crane main rope rope supporting device according to claim 2, it is characterised in that：The trigger architecture includes fixing
The both ends of frizzen on trolley, frizzen are located at the both sides of trolley, and the both ends of frizzen are
Wedge shape, and the inclined-plane of wedge shape end and trigger wheel face.
4. tower crane main rope rope supporting device according to claim 3, it is characterised in that：The frizzen includes fixed pacifies
Fixed link on trolley and the motion bar set on fixed link both ends, two be equipped between motion bar and fixed link it is slow
Portion is rushed, motion bar is connect by the buffer part by the second elastic component with fixed link.
5. tower crane main rope rope supporting device according to claim 4, it is characterised in that：First elastic component is to turn round
Spring, second elastic component are spring.
6. tower crane main rope rope supporting device according to claim 5, it is characterised in that：It is also set on the lifting arm body
It includes two screw rods being rotatably installed on lifting arm body to have hoisting mechanism, the hoisting mechanism, and two screw rods are located at
The both sides of central shaft, are equipped with lift lever on two screw rods, and lift lever is equipped with the nut coordinated with screw rod, on lifting arm body
Rotation connection has been fixedly connected with slide bar in two changes, two carry there are two the change respectively with the setting of two screw coaxials
Rising stem is slidably connected on two slide bars respectively, and the incomplete tooth of first be fixedly connected with rotary sleeve is rotatablely equipped on central shaft
It takes turns, is installed with the first transmission gear that can be engaged with the first partial gear on two screw rods, change is located at rotary sleeve
Top, and when lift lever and change contact, lift lever is located at same level with support rope roller, is rotatablely equipped on central shaft
The second partial gear being fixedly connected with rotary sleeve is installed with and can be engaged with the second partial gear in two changes
The second transmission gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811012123.1A CN108706480A (en) | 2018-08-31 | 2018-08-31 | Tower crane main rope rope supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811012123.1A CN108706480A (en) | 2018-08-31 | 2018-08-31 | Tower crane main rope rope supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108706480A true CN108706480A (en) | 2018-10-26 |
Family
ID=63873794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811012123.1A Pending CN108706480A (en) | 2018-08-31 | 2018-08-31 | Tower crane main rope rope supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108706480A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359263Y (en) * | 1998-12-29 | 2000-01-19 | 建设部长沙建设机械研究院 | Anti-falling device for wirerope of tower crane |
| JP2001158590A (en) * | 1999-12-03 | 2001-06-12 | Kobelco Contstruction Machinery Ltd | Entanglement preventing device for hoisting wire of crane |
| CN2855992Y (en) * | 2005-12-08 | 2007-01-10 | 抚顺永茂工程机械有限公司 | Towing rope bogie of tower crane |
| CN201729606U (en) * | 2010-07-01 | 2011-02-02 | 山东国弘重工机械有限公司 | Movable rope bearing device of tower crane |
| CN102234072A (en) * | 2010-04-24 | 2011-11-09 | 徐州建机工程机械有限公司 | Rope holding apparatus for tower crane boom |
| CN202744232U (en) * | 2012-08-23 | 2013-02-20 | 江苏正兴建设机械有限公司 | Tower crane long suspension arm lifting steel rope supporting device |
| CN204958233U (en) * | 2015-08-04 | 2016-01-13 | 贾林昕 | Tower crane plays to rise wire rope and holds in palm rope device |
| CN106829758A (en) * | 2016-11-10 | 2017-06-13 | 大连益利亚工程机械有限公司 | A kind of anti-downwarp device of full-automatic intelligent derrick crane raising line |
| CN208791059U (en) * | 2018-08-31 | 2019-04-26 | 中建重庆机械租赁有限公司 | Tower crane main rope rope supporting device |
-
2018
- 2018-08-31 CN CN201811012123.1A patent/CN108706480A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2359263Y (en) * | 1998-12-29 | 2000-01-19 | 建设部长沙建设机械研究院 | Anti-falling device for wirerope of tower crane |
| JP2001158590A (en) * | 1999-12-03 | 2001-06-12 | Kobelco Contstruction Machinery Ltd | Entanglement preventing device for hoisting wire of crane |
| CN2855992Y (en) * | 2005-12-08 | 2007-01-10 | 抚顺永茂工程机械有限公司 | Towing rope bogie of tower crane |
| CN102234072A (en) * | 2010-04-24 | 2011-11-09 | 徐州建机工程机械有限公司 | Rope holding apparatus for tower crane boom |
| CN201729606U (en) * | 2010-07-01 | 2011-02-02 | 山东国弘重工机械有限公司 | Movable rope bearing device of tower crane |
| CN202744232U (en) * | 2012-08-23 | 2013-02-20 | 江苏正兴建设机械有限公司 | Tower crane long suspension arm lifting steel rope supporting device |
| CN204958233U (en) * | 2015-08-04 | 2016-01-13 | 贾林昕 | Tower crane plays to rise wire rope and holds in palm rope device |
| CN106829758A (en) * | 2016-11-10 | 2017-06-13 | 大连益利亚工程机械有限公司 | A kind of anti-downwarp device of full-automatic intelligent derrick crane raising line |
| CN208791059U (en) * | 2018-08-31 | 2019-04-26 | 中建重庆机械租赁有限公司 | Tower crane main rope rope supporting device |
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