CN202542741U - Unpowered replacing device of tower crane for lifting electric motor derrick - Google Patents
Unpowered replacing device of tower crane for lifting electric motor derrick Download PDFInfo
- Publication number
- CN202542741U CN202542741U CN201220111347XU CN201220111347U CN202542741U CN 202542741 U CN202542741 U CN 202542741U CN 201220111347X U CN201220111347X U CN 201220111347XU CN 201220111347 U CN201220111347 U CN 201220111347U CN 202542741 U CN202542741 U CN 202542741U
- Authority
- CN
- China
- Prior art keywords
- tower crane
- unpowered
- hemp
- pole
- motor
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model discloses an unpowered replacing device of a tower crane for lifting an electric motor derrick, belonging to the field of a building construction technology device. The unpowered replacing device comprises a derrick lifting mechanism, a steel wire rope (7), a down-pull hemp rope (3) and a down-place hemp rope (8), and is characterized in that the derrick lifting mechanism is arranged on a balance arm of the tower crane by virtue of a derrick base (5), the top end of a derrick (6) of the derrick lifting mechanism is provided with a fixed pulley (4), one end of the steel wire rope (7), which penetrates through the fixed pulley (4),is fixed on a fault electric motor (1), the other end of the steel wire rope (7) is fixed on a standby electric motor (2), and one end of the down-pull hemp rope (3) and one end of the down-place hemp rope (8) are both fixed on the fault electric motor (1). Compared with the prior art, The unpowered replacing device disclosed by the utility model has the advantages of high process controllability, good safety and convenience and rapidness in assembly because a lever equilibrium principle is utilized and a power device is omitted.
Description
Technical field
Tower crane promotes the unpowered more changing device of motor pole, belongs to the building construction technology apparatus field.
Background technology
In the engineering construction process, the lifting motor that promotes power facility as tower crane can must be changed because a variety of causes breaks down.Generally need when changing motor in the prior art subsequent use motor to be risen on the equilibrium arm of tower crane and change with a large automobile crane.The method needs higher wheel crane rent, and in case run into situation such as the too narrow and small or ground weight capacity deficiency of site operation environment, this method also can't be implemented.
(notification number is the inventor: CN 102086005A) in the Chinese patent of application in 2009; Disclose a kind of tower crane and changed the motor bont, comprised winch, steel rope, pole lift system and fixed pulley, the pole lift system is installed on the tower crane equilibrium arm; Tower emits root to be provided with fixed pulley; The steel wire penetrating fixed pulley, an end connects winch, and an end is connected with the fault motor through the pole lift system.When using this device, utilize winch as power lifting fault motor and the subsequent use motor of hoisting; Need one on fixed pulley be installed at standard knot place, tower crane bottom; One on pulley is installed by intersection at tower cap and equilibrium arm, and the rope capacity that the replacing motor need use is: tower crane height * 3+10～15m.Often because of the bad meeting of communication causes hoisting, shakiness in place, the pole lift system rocks seriously, has certain potential safety hazard in the operation.And wire rope hoist, pulley, wearing around pole system steel rope wastes time and energy, and needs man-hour longer, and efficient is lower.
The utility model content
The technical matters that the utility model will solve is: overcome the deficiency of prior art, provide a kind of safe, convenient, tower crane promotes the unpowered more changing device of motor pole efficiently.
The utility model solves the technical scheme that its technical matters adopted: this tower crane promotes the unpowered more changing device of motor pole; Comprise pole lift system, steel rope, the drop-down rope made of hemp, transfer the rope made of hemp, it is characterized in that: the pole lift system relies on the pole base to be installed on the tower crane equilibrium arm; Fixed pulley is equipped with on the pole top of pole lift system; Steel wire penetrating fixed pulley one end is fixed on wire clips in the suspension ring of fault motor, and the other end is fixed in the subsequent use motor suspension ring of preparing to change with wire clips; One end of the drop-down rope made of hemp all is fixed on the suspension ring of fault motor with an end of transferring the rope made of hemp.
Said length of steel wire rope is greater than tower crane height 10～15m.
The said drop-down rope made of hemp and the length of transferring the rope made of hemp are all greater than tower crane height 10～15m.
The stressed size at steel rope two ends is the size of the suffered gravity of fault motor and the size of the suffered gravity of subsequent use motor, because fault motor and subsequent use motor are model of the same race, suffered gravity size is very approaching, and steel rope is in the lever balance state.
Compared with prior art, the tower crane of the utility model promotes the unpowered more beneficial effect that changing device had of motor pole and is: utilize lever balance theory, exempt engine installation, controllable process property is high, and safety is good.Use this tower crane to promote the unpowered more changing device replacing of motor pole lifting motor and not only save time but also laborsaving, because required parts are few, whole device is easy to assembly quick, changes efficient and is improved, and has reduced diversion fee, and tangible economic benefit is arranged.
Description of drawings
Fig. 1 is that the utility model tower crane promotes the unpowered replacing apparatus structure of motor pole scheme drawing.
Fig. 2 is the pole lift system structural representation that the utility model tower crane promotes the unpowered more changing device of motor pole.
Fig. 3 is that the utility model tower crane promotes the unpowered more changing device of motor pole mounting structure scheme drawing.
Wherein: 1, fault motor 2, subsequent use motor 3, the drop-down rope made of hemp 4, fixed pulley 5, pole base 6, pole 7, steel rope 8, transfer the rope made of hemp.
Fig. 1～3rd, the utility model tower crane promotes the most preferred embodiment of the unpowered more changing device of motor pole, further specifies below in conjunction with 1～3 pair of the utility model of accompanying drawing:
The specific embodiment
With reference to accompanying drawing 1～3:
Tower crane promotes the unpowered more changing device of motor pole; It is characterized in that: comprise pole lift system, steel rope 7, the drop-down rope made of hemp 3, transfer the rope made of hemp 8; The pole lift system relies on pole base 5 to be installed on the tower crane equilibrium arm; Fixed pulley 4 is equipped with on pole 6 tops of pole lift system; Steel rope 7 passes fixed pulley 4 one ends and is fixed on wire clips in the suspension ring of fault motor 1, and the other end is put into ground and is fixed in subsequent use motor 2 suspension ring of preparing to change, and an end of the drop-down rope made of hemp 3 is fixed on the suspension ring of fault motor with an end of transferring the rope made of hemp 8.Steel rope 7, the drop-down rope made of hemp 3 and transfer long the more than needed of 10～15m that all leave of rope of the rope made of hemp 8.
During replacing on one side on the tower crane equilibrium arm slow Panasonic put the rope made of hemp 8, on one side the rope made of hemp 3 of leaving behind slowly on ground, arrive subsequent use motor 2 of ground-surface while up to fault motor 1 and arrive pole lift system tops.Subsequent use motor 2 is drawn to the correct position installation to get final product.
In fault motor 1 downdraw process, steel rope 7 is in the lever balance state, and the tractive force that the drop-down rope made of hemp 3 provides only need overcome the friction drag of fixed pulley 4.Transferring the rope made of hemp 8 can twine a circle and be convenient to the control to lowering velocity to increase resistance on the guardrail of tower crane equilibrium arm.
The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model technical scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of the utility model technical scheme according to the technical spirit of the utility model.
Claims (3)
1. tower crane promotes the unpowered more changing device of motor pole; Comprise pole lift system, steel rope (7), the drop-down rope made of hemp (3), transfer the rope made of hemp (8); It is characterized in that: the pole lift system relies on pole base (5) to be installed on the tower crane equilibrium arm; Fixed pulley (4) is equipped with on the pole of pole lift system (6) top; Steel rope (7) passes fixed pulley (4) one ends and is fixed on wire clips in the suspension ring of fault motor (1), and the other end is fixed on wire clips in the suspension ring of the subsequent use motor (2) of preparing replacing, and an end of the drop-down rope made of hemp (3) all is fixed on the suspension ring of fault motor (1) with an end of transferring the rope made of hemp (8).
2. tower crane according to claim 1 promotes the unpowered more changing device of motor pole, and it is characterized in that: the length of said steel rope (7) is greater than tower crane height 10～15m.
3. tower crane according to claim 1 promotes the unpowered more changing device of motor pole, it is characterized in that: the said drop-down rope made of hemp (3) and the length of transferring the rope made of hemp (8) are all greater than tower crane height 10～15m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220111347XU CN202542741U (en) | 2012-03-22 | 2012-03-22 | Unpowered replacing device of tower crane for lifting electric motor derrick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220111347XU CN202542741U (en) | 2012-03-22 | 2012-03-22 | Unpowered replacing device of tower crane for lifting electric motor derrick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202542741U true CN202542741U (en) | 2012-11-21 |
Family
ID=47163407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220111347XU Expired - Fee Related CN202542741U (en) | 2012-03-22 | 2012-03-22 | Unpowered replacing device of tower crane for lifting electric motor derrick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202542741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991796A (en) * | 2014-05-08 | 2014-08-20 | 天津一建建筑工程有限公司 | Device group for replacing malfunctioning motor part of aerial work tower crane |
-
2012
- 2012-03-22 CN CN201220111347XU patent/CN202542741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991796A (en) * | 2014-05-08 | 2014-08-20 | 天津一建建筑工程有限公司 | Device group for replacing malfunctioning motor part of aerial work tower crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202296701U (en) | Counter-weight-free speed limiter tension device for elevator | |
| CN202542741U (en) | Unpowered replacing device of tower crane for lifting electric motor derrick | |
| CN202390116U (en) | High-intensity small-tonnage hoist | |
| CN201762053U (en) | Simple automatic derrick | |
| CN203321336U (en) | Device for adopting drilling line to realize lifting of oil rig self-elevating derrick | |
| CN203807019U (en) | Roof net rack rod piece lifting device | |
| CN203582132U (en) | Heavy paying-off rack for extra-high voltage stringing construction | |
| CN102086005A (en) | Tower crane replacement motor lifting device and replacement method thereof | |
| CN202988631U (en) | Power facility hoisting device | |
| CN202429891U (en) | Crane hook device | |
| CN202322116U (en) | Inverted triangular arm and moving balancing weight hoisting machinery | |
| CN202138967U (en) | Double-insurance travelling crane for production of domestic paper | |
| CN201812630U (en) | Device for installing transformer | |
| CN201553571U (en) | Lifting motor replacing device for tower crane | |
| CN101882500A (en) | Device for assembling transformer | |
| CN204384748U (en) | A kind of crane arm pull bar tap shelf structure | |
| CN204150988U (en) | A kind of hand gear type on-pole switch lifting appliance | |
| CN202744151U (en) | Lifting device for construction of coal bunker | |
| CN202296821U (en) | Installation structure for lifting appliance | |
| CN202785203U (en) | Movable pulley hook head for vertical shaft sinking and hoisting | |
| CN203173696U (en) | Lifting idling and overturning pulley device of large equipment | |
| CN201921350U (en) | Suspension type safety belt bracket | |
| CN203128055U (en) | Pier-spanning gantry crane | |
| CN202785208U (en) | Movable pulley cage for vertical shaft hoisting | |
| CN201737621U (en) | Limiter of tower crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20170322 |