CN211110747U - Collapsible integral type propeller strut suitable for swing arm tower crane - Google Patents
Collapsible integral type propeller strut suitable for swing arm tower crane Download PDFInfo
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- CN211110747U CN211110747U CN201922098969.8U CN201922098969U CN211110747U CN 211110747 U CN211110747 U CN 211110747U CN 201922098969 U CN201922098969 U CN 201922098969U CN 211110747 U CN211110747 U CN 211110747U
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Abstract
The utility model discloses a collapsible integral type propeller strut suitable for swing arm tower crane belongs to hoisting machinery technical field. The propeller strut is characterized in that a front support and a rear pull rod are hinged at the top end to form a foldable and openable propeller strut, a variable-amplitude winch is mounted at the root of the rear pull rod, an inclined stay bar is hinged between the root of the rear pull rod and the middle lower part of the front support, a steering fixed pulley is mounted at the top of the front support, and an anti-backward-tilting device is hinged at the middle upper part of the front support. Utilize the utility model discloses can practice thrift the time of installing and removing greatly and install and remove the cost, simplify the operation, be convenient for deposit and transport, convenient frequent recycling has simple structure, reasonable in design, safety, economy, suitable advantage.
Description
Technical Field
The utility model belongs to the technical field of hoisting machinery, more specifically say and relate to a collapsible integral type propeller strut suitable for swing arm tower crane.
Background
In wind power construction, because the number of tower drums, engine rooms and other parts in each device is small, the construction period of each fan is short, generally 5-10 days, and a corresponding jib tower crane (a tower crane for short) needs to be frequently recycled, namely frequent transition, transportation and installation, so that the transition, transportation and installation of the tower crane become an important link in construction. In conventional wind power construction, the propeller strut and the luffing winch of the jib tower crane are manufactured as separate parts and transported separately, and a rear guy cable (10) is required (see fig. 1 in detail). When the variable-amplitude winch is installed and used, the variable-amplitude winch is independently placed on the platform, the middle support (9) is inclined backwards, and the middle support (9), the front support (1) and the platform form an obtuse-angle triangular frame which is unstable and needs to be provided with the rear inhaul cable (10). If the rear stay cable (10) and the front support (1) are difficult to be installed in place after being folded, the transportation cost is high, the field installation time is long, the working efficiency is low, the wind power construction requirement cannot be completely met, and the economical efficiency is poor. Therefore, in order to meet the requirements of frequent transition, transportation and installation of the tower crane, the existing propeller strut of the tower crane is urgently needed to be improved.
Disclosure of Invention
The purpose of the utility model is to provide a collapsible integral type propeller strut who is applicable to swing arm tower crane just to the weak point that exists among the above-mentioned prior art. Utilize the utility model discloses can practice thrift greatly and install and remove the time and install and remove the cost, simplify the operation, be convenient for deposit and transport, convenient frequent recycling has simple structure, reasonable in design, safety, economy, suitable advantage.
The purpose of the utility model can be realized by the following technical measures:
the utility model discloses a collapsible integral type propeller strut suitable for jib tower crane comprises front bracket and back pull rod after the top is articulated and can fold and open propeller strut (the utility model discloses when installing and using, only need to open front bracket and back pull rod in collapsible propeller strut according to specified angle, and fix the root of front bracket and back pull rod on the tower machine board, the utility model discloses when dismantling the transportation, only need to tear off the root of front bracket and back pull rod and the connection between the tower machine board, folding propeller strut and then whole and depositing and transporting, so collapsible propeller strut has greatly practiced thrift the time of installing and removing and has installed and removed the cost, easy operation, the transportation of being convenient for frequently recycle), install the hoist engine at the root of back pull rod (like this, the amplitude transformer forms a whole with collapsible propeller strut, as an integral transportation unit and installation unit, the trouble of frequent assembly and disassembly is saved between the two, the assembly and disassembly time is saved, the operation is simplified, the storage and the transportation are convenient, inclined support rods (capable of improving the rigidity of the front support) are hinged between the root of the rear pull rod and the middle lower part of the front support, a steering fixed pulley (the movement direction of a variable-amplitude steel wire rope extending from a variable-amplitude winch is changed through the steering fixed pulley) is installed at the top of the front support, an anti-back-tilting device is hinged at the middle upper part of the front support (the anti-back-tilting device can prevent the crane boom from excessively falling backwards when the tower crane works, the device can be attached to the front plane of the front support when in transportation, and can be automatically put down to prevent the.
The utility model discloses in the back pull rod is in vertical state when opening the use (the utility model discloses a constitute the stable right angle A-frame that just takes one's place easily by back pull rod and fore-stock cooperation tower machine board, replaced in the traditional propeller strut structure by fore-stock, intermediate strut constitute obtuse angle A-frame be difficult to take one's place and need the mode of structure of back pull rod cooperation tower machine board, consequently the utility model discloses in do not need the back cable, cancelled the back pull rod, simplified the installation greatly and taken one's place and dismantle the operation).
The utility model discloses in the top and the root end of fore-stock and back pull rod all are provided with the round pin board of taking the pinhole (wear to adorn round pin axle after, just can realize that the top of fore-stock and back pull rod is articulated fast to and the root end of realizing fore-stock and back pull rod respectively with the high-speed joint of tower machine board).
The design principle of the utility model is as follows:
the utility model discloses in adopt collapsible propeller strut, only need open the propeller strut or fold when installation or dismantlement and fixed can, practiced thrift the time of installing and removing greatly and installed and removed the cost with installing and removing, easy operation, the transportation of being convenient for, convenient frequent recycle. And simultaneously, the utility model discloses in will become width of cloth hoist engine and propeller strut and carried out the integrated design, as a holistic transportation unit and installation unit, saved the trouble of frequent equipment and frequent dismantlement between the two, practiced thrift the time of installing and removing, simplified the operation, conveniently deposit and transport. Furthermore, the utility model discloses still cancel the back guy cable, further simplified the installation and dismantled the operation, practiced thrift the time of installing and removing. The utility model has the advantages of simple structure, reasonable design, safety, economy and applicability.
More specifically, the front bracket and the rear pull rod of the utility model form a propeller strut which can be folded and unfolded after being hinged at the top end, so that when the propeller strut is installed and used, the front bracket and the rear pull rod in the foldable propeller strut are unfolded according to a specified angle, and the roots of the front bracket and the rear pull rod are fixed on a tower crane machine table; when the propeller strut is disassembled for transportation, the propeller strut can be integrally stored and transported after the propeller strut is folded by only disassembling the connection between the root parts of the front support and the rear pull rod and the machine table of the tower crane. The utility model discloses in will become width of cloth the hoist engine and install at the root of back pull rod, make and become width of cloth hoist engine and propeller strut one-tenth an organic whole, as a holistic transportation unit and installation unit, saved the trouble of frequent equipment and frequent dismantlement between the two, practiced thrift the time of installing and removing, simplified the operation, conveniently deposit and transport. The back pull rod is in vertical state when opening the use, directly constitutes stable and the right angle A-frame of taking one's place easily by back pull rod and fore-stock cooperation tower machine board, has replaced in the traditional A-frame structure to constitute obtuse angle A-frame by fore-stock, intermediate strut and is difficult to take one's place and need the mode of structure of back pull rope cooperation tower machine board, the utility model discloses in do not need the back cable, cancelled the back cable, simplified the installation greatly and taken one's place and dismantle the operation, practiced thrift the time of installing and removing.
The utility model has the advantages of as follows:
utilize the utility model discloses can practice thrift the time of installing and removing greatly and install and remove the cost, simplify the operation, be convenient for deposit and transport, convenient frequent recycling has simple structure, reasonable in design, safety, economy, suitable advantage.
Will the utility model discloses on wide application movable arm formula tower crane, the result is obvious, embodies as follows:
taking a wind power jib tower crane with the lifting capacity of 100 tons as an example, 2 rear inhaul cables with the lengths of 20 meters and the diameters of 60 millimeters, aluminum alloy joints and pin shafts are eliminated, 0.8 ten thousand yuan is saved, the original 2-vehicle transportation of a front support, a rear pull rod and a variable amplitude winch is changed into 1-vehicle transportation during long-distance transportation, 0.8 ten thousand yuan is saved every 1000 kilometers, 2 days of 3 original workers are changed into 0.5 days of 2 workers once during field installation and disassembly, 40 fans in each wind power plant calculate, the labor cost is 350 yuan/man.day, 3 × 2-2 × 0.5.5 is saved, × 350 × 40=70000 yuan is saved, 8.6 yuan is added, meanwhile, the installation task and the advanced power generation are completed in advance, and the social benefit and the economic benefit are good.
Drawings
Fig. 1 is a schematic structural view of a conventional propeller strut.
Fig. 2 is a schematic structural diagram of the present invention in a use state.
Fig. 3 is a schematic view of the state of the utility model during folding transportation.
The sequence numbers in the figures illustrate: 1. the device comprises a front support, 2, a rear pull rod, 3, a variable amplitude winch, 4, an inclined support rod, 5, a steering fixed pulley, 6, an anti-backward-tipping device, 7, a pin plate, 8, a pin shaft, 9, a middle support, 10 and a rear pull rope.
Detailed Description
The present invention will be further described with reference to the accompanying drawings:
as shown in figures 1-3, the foldable integrated A-bracket suitable for the jib tower crane of the utility model is a folding and expanding A-bracket formed by hinging a front bracket (1) and a rear pull rod (2) at the top end (when the utility model is installed and used, the front bracket (1) and the rear pull rod (2) in the foldable A-bracket are expanded according to a specified angle, and the roots of the front bracket (1) and the rear pull rod (2) are fixed on a tower crane machine table; when the utility model is disassembled and transported, the connection between the roots of the front bracket (1) and the rear pull rod (2) and the tower crane machine table is only needed to be disassembled, and the A-bracket can be integrally stored and transported after being folded, therefore, the foldable A-bracket greatly saves the assembling and disassembling time and the assembling and disassembling cost, has simple operation, convenient transportation and convenient and frequent recycling use), a winch (3) is installed at the root of the rear pull rod (2) (in this way, the variable-amplitude winch (3) and the foldable propeller strut form a whole as a whole, and the integrated transportation unit and the installation unit save the troubles of frequent assembly and disassembly between the variable-amplitude winch and the foldable propeller strut, save the assembly and disassembly time, simplify the operation, facilitate the storage and transportation, an inclined stay bar (4) is hinged between the root of the rear pull rod and the middle lower part of the front bracket (can improve the rigidity of the front bracket (1)), a steering fixed pulley (5) is arranged at the top of the front bracket (the variable amplitude steel wire rope extending from the variable amplitude winch (3) changes the motion direction through the steering fixed pulley (5), the middle upper part of the front bracket is hinged with a backward tilting prevention device (6) (the backward tilting prevention device (6) can prevent the crane arm from tilting backwards excessively when the tower crane works to cause accidents, the device can be folded and attached to the front plane of the front support frame during transportation, and can be automatically put down to prevent the crane arm from excessively inclining backwards during working).
The utility model discloses in back pull rod (2) are in vertical state when opening the use (the utility model discloses a constitute stable and the right angle A-frame of taking one's place easily by back pull rod (2) and fore-stock (1) cooperation tower machine board, replaced in the traditional propeller strut structure by fore-stock, intermediate support (9) constitute obtuse angle A-frame be difficult to take one's place and need the mode of structure of back cable (10) cooperation tower machine board, consequently the utility model discloses in do not need back cable (10), cancelled back cable (10), simplified the installation greatly and taken one's place and dismantle the operation.
The utility model discloses in the top and the root end of fore-stock (1) and back pull rod (2) all are provided with takes the pinhole sell board (7) (wear to adorn round pin axle (8) back, just can realize that the top of fore-stock (1) and back pull rod (2) is articulated fast to and the root end of realizing fore-stock (1) and back pull rod (2) is connected with the high speed of tower machine board respectively.
The utility model discloses a concrete in service behavior as follows:
when the utility model needs to be installed and used, firstly, the utility model is hoisted to a tower crane table; then, the foldable propeller strut is unfolded, namely the front support (1) and the rear pull rod (2) are unfolded according to a specified angle, and the rear pull rod (2) is ensured to be in a vertical state; then, the roots of the front support (1) and the rear pull rod (2) are respectively fixed on corresponding connecting seats of a tower crane machine table; then, two ends of the inclined stay bar (4) are respectively hinged with the root part of the rear pull rod and the middle-lower part of the front support; and finally, connecting the components such as a crane boom and the like on a tower crane machine table, and sequentially winding the variable-amplitude steel wire rope extending from the variable-amplitude winch (3) through the corresponding required pulleys after winding the variable-amplitude steel wire rope through the steering fixed pulley (5) to change the direction. Therefore, the propeller strut is quickly installed, the installation time and the installation cost are greatly saved, and the propeller strut is simple to operate.
When the utility model discloses when needing to dismantle the transportation, only need tear open and become width of cloth wire rope, tear open root and the tower machine board of fore-stock (1) and back pull rod (2) between be connected, tear open diagonal brace (4), folding back alright carry out whole deposit and transport with the propeller strut. The disassembly time and the disassembly cost are greatly saved, the operation is simple, the transportation is convenient, and the frequent recycling is convenient.
Claims (3)
1. The utility model provides a collapsible integral type propeller strut suitable for swing arm tower crane which characterized in that: the V-bracket is characterized in that a front bracket (1) and a rear pull rod (2) are hinged at the top end to form a foldable and openable V-bracket, a variable-amplitude winch (3) is installed at the root of the rear pull rod (2), an inclined stay bar (4) is hinged between the root of the rear pull rod and the middle lower part of the front bracket, a steering fixed pulley (5) is installed at the top of the front bracket, and a backward tilting prevention device (6) is hinged at the middle upper part of the front bracket.
2. The foldable one-piece propeller strut suitable for use with a jib tower crane according to claim 1, wherein: the rear pull rod (2) is in a vertical state when being unfolded for use.
3. The foldable one-piece propeller strut suitable for use with a jib tower crane according to claim 1, wherein: and pin plates (7) with pin holes are arranged at the top ends and the root ends of the front bracket (1) and the rear pull rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098969.8U CN211110747U (en) | 2019-11-29 | 2019-11-29 | Collapsible integral type propeller strut suitable for swing arm tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098969.8U CN211110747U (en) | 2019-11-29 | 2019-11-29 | Collapsible integral type propeller strut suitable for swing arm tower crane |
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| Publication Number | Publication Date |
|---|---|
| CN211110747U true CN211110747U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922098969.8U Active CN211110747U (en) | 2019-11-29 | 2019-11-29 | Collapsible integral type propeller strut suitable for swing arm tower crane |
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| CN (1) | CN211110747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113816285A (en) * | 2021-08-10 | 2021-12-21 | 中联重科建筑起重机械有限责任公司 | Method for mounting A-shaped frame of tower crane |
-
2019
- 2019-11-29 CN CN201922098969.8U patent/CN211110747U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113816285A (en) * | 2021-08-10 | 2021-12-21 | 中联重科建筑起重机械有限责任公司 | Method for mounting A-shaped frame of tower crane |
| CN113816285B (en) * | 2021-08-10 | 2024-02-27 | 中联重科建筑起重机械有限责任公司 | Method for installing A-shaped frame of tower crane |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200825 Address after: No.27, Huxin Ring Road, west of Huxin Ring Road and north of Huxin 1st Road, Longzi Lake, Zhengdong New District, Zhengzhou City, Henan Province Co-patentee after: KERUN ELECTRO-MECHANICAL ENGINEERING Co.,Ltd. Patentee after: HUADIAN ZHENGZHOU MECHANICAL DESIGN INSTITUTE Co.,Ltd. Address before: High tech Zone of Henan city in Zhengzhou province 450001 pagoda Street No. 8 Patentee before: KERUN ELECTRO-MECHANICAL ENGINEERING Co.,Ltd. |