CN214298989U - A revolving tower crane without counterweight - Google Patents
A revolving tower crane without counterweight Download PDFInfo
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- CN214298989U CN214298989U CN202022891043.7U CN202022891043U CN214298989U CN 214298989 U CN214298989 U CN 214298989U CN 202022891043 U CN202022891043 U CN 202022891043U CN 214298989 U CN214298989 U CN 214298989U
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- 238000000034 method Methods 0.000 description 2
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- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
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Abstract
本实用新型公开一种无配重可周转塔吊，包括与风电塔柱并列设置的塔身，塔身顶部固定安装有起重臂，底部设有可使塔身360°旋转的驱动转盘；还包括牵拉装置，牵拉装置可拉紧起重臂后臂，并随塔身旋转而转动。本实用新型用牵拉装置代替传统塔吊的配重块，牵拉装置将起重后臂拉紧，只要前臂起重的货物在牵拉装置的起重限重范围内，都能够正常起重，避免了现有塔吊根据起重货物的重量不同加减配重块这一繁琐工作，杜绝了配重块安装于塔吊上易发生坠落这一缺陷；同时通过驱动转盘的设置，带动塔身旋转，进而带动起重臂可同步360°旋转，牵拉装置随起重臂转动而活动，不影响起重臂的灵活，在实现无配重的同时扩大了塔吊的起重范围，简单高效，安全可靠。
The utility model discloses a revolving tower crane without counterweight, which comprises a tower body arranged in parallel with a wind power tower column, a boom is fixedly installed on the top of the tower body, and a driving turntable capable of rotating the tower body 360° is arranged at the bottom; The pulling device can tighten the rear arm of the boom and rotate with the rotation of the tower body. The utility model uses a pulling device to replace the counterweight of the traditional tower crane, and the pulling device tightens the lifting rear arm, so long as the goods lifted by the forearm are within the lifting weight limit of the pulling device, they can be lifted normally. It avoids the tedious work of adding and subtracting counterweight blocks in the existing tower crane according to the weight of the lifting goods, and eliminates the defect that the counterweight block is easy to fall when installed on the tower crane; In turn, the boom can be driven to rotate 360° synchronously, and the pulling device moves with the rotation of the boom, without affecting the flexibility of the boom. It expands the lifting range of the tower crane while achieving no counterweight, which is simple, efficient, safe and reliable. .
Description
Technical Field
The utility model relates to an engineering machine tool field, concretely relates to tower crane can have enough to meet need to no counter weight.
Background
The tower crane is the most common hoisting equipment on the construction site, is assembled by standard sections one by one, and is used for hoisting raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction. The tower crane is an indispensable device on a construction site.
At present, a common tower crane usually uses a balancing weight to keep the balance of a crane arm in the hoisting process, but the structure has many unsafe factors. Usually, the height of the crane boom of the tower crane with the large height of the building needs to be large, the counterweight block is arranged on the crane boom with the large weight, and once the crane boom falls, the consequence is unimaginable; moreover, the counterweight block is too heavy, so that a large amount of manpower and material resources are wasted in transportation and use, and the operation is inconvenient; secondly, the crane boom rotates by taking the tower body as a fulcrum, and the weight of the balancing weight makes the crane boom not flexible to rotate and large in danger coefficient. In addition, because the goods of jack-up are different, in order to keep the balance of jib loading boom, often need add or subtract the balancing weight according to the weight of the goods of jack-up, consuming time and wasting force. Therefore, the arrangement of the balancing weight is beneficial to the balance of the crane arm in the hoisting process, but the use is inconvenient, the danger coefficient is too large, and the potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a tower crane can have enough to meet need to no counter weight.
The utility model adopts the technical scheme as follows: a counterweight-free rotatable tower crane comprises a tower body arranged in parallel with a wind power tower column, wherein a crane boom is fixedly arranged at the top of the tower body, and a driving turntable capable of rotating the tower body by 360 degrees is arranged at the bottom of the tower body; the lifting device further comprises a pulling device, and the pulling device can pull the rear arm of the lifting arm tightly and rotates correspondingly along with the rotation of the tower body.
The utility model has the advantages that: the utility model uses the traction device to replace the balancing weight of the traditional tower crane, the traction device tensions the hoisting rear arm, so long as the goods hoisted by the front arm are within the hoisting weight limit range of the traction device, the normal hoisting can be realized, the tedious work of adding and subtracting the balancing weight according to the weight difference of the hoisted goods by the existing tower crane is avoided, and the defect that the balancing weight is easy to fall when being installed on the tower crane is avoided; meanwhile, the tower body is driven to rotate through the arrangement of the driving turntable, the crane boom is driven to rotate by 360 degrees synchronously, the traction device moves along with the rotation of the crane boom, the flexibility of the crane boom is not influenced, the lifting range of the tower crane is enlarged while no counter weight is realized, and the tower crane is simple, efficient, safe and reliable.
Preferably: the traction device comprises a traction rope and a guide rail, the guide rail is a circular slide rail fixed around the bottom of the tower body, the traction rope is connected with the guide rail and a rear arm of the crane boom and tensioned, and the traction rope can slide along the guide rail.
Preferably: the traction device also comprises a connecting column arranged between the bottom of the tower body and the guide rail, one end of the connecting column is fixedly connected with the bottom of the tower body and can rotate along with the tower body, and the other end of the connecting column is connected with the guide rail through a sliding pull ring and can slide along with the guide rail; the pull line is connected to the slider pull ring and tensioned.
Preferably: the connecting column is of a hollow box body structure, and a winch is arranged in the box.
Preferably: the bottom of the tower body is also provided with a fixed rod, and one end of the fixed rod is fixedly connected with the bottom of the tower body and can rotate along with the tower body; the other end of the tower body is connected with the guide rail through a sliding pull ring, can slide along with the guide rail and is connected with the upper end of the tower body in a tensioning mode through a stable pull rope; the fixing rods are symmetrically and uniformly arranged.
Preferably: the tower body bottom is equipped with the base, the base includes by the center to be radial arrangement's floorbar all around, the guide rail is fixed on the floorbar.
Preferably: and a radial bottom plate is correspondingly arranged below the bottom beam, and the width of the radial bottom plate is greater than that of the bottom beam.
Preferably: the crane arm is a horizontal type or a movable arm type.
Drawings
Fig. 1 is a schematic view of a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a second embodiment of the present invention.
The wind power tower comprises a wind power tower column 01, a crane boom 1, a front arm 101, a lifting hook 1011, a rear arm 102, a tower body 2, a traction rope 3, a guide rail 4, a connecting column 5, a stable pull rope 6, a fixing rod 7, a bottom beam 8, a bottom plate 9, a driving turntable 10 and a sliding pull ring 11.
Detailed Description
The present invention will be further explained with reference to the following embodiments and accompanying drawings.
In the embodiment, as shown in fig. 1 and 2, the tower crane without the counterweight and capable of being turned comprises a tower body 2 arranged in parallel with a wind power tower column 01, wherein a crane boom 1 is fixedly installed at the top of the tower body 2, and a driving turntable 10 capable of enabling the tower body 2 to rotate 360 degrees is arranged at the bottom of the tower body 2; the lifting device also comprises a pulling device which can pull the rear arm 102 of the lifting arm 1 tightly and rotate correspondingly with the rotation of the tower body 2. In the embodiment, the traction device is used for replacing a balancing weight of a traditional tower crane, the traction device is used for tensioning the rear arm 102 of the crane arm 1, and the crane can normally lift as long as goods lifted by the front arm 101 are within the lifting weight limit range of the traction device, so that the complex work of adding or subtracting the balancing weight according to different weights of lifted goods in the existing tower crane is avoided, and the defect that the balancing weight is easy to fall when being installed on the tower crane is overcome; meanwhile, the tower body 2 is driven to rotate through the arrangement of the driving turntable 10, the crane boom 1 is driven to rotate synchronously by 360 degrees, the traction device moves along with the rotation of the crane boom 1, the flexibility of the crane boom 1 is not affected, the lifting range of the tower crane is enlarged while no counter weight is realized, and the tower crane is simple, efficient, safe and reliable. In an embodiment, the driving turntable 10 comprises a motor and a transmission. As shown in fig. 1, the tower crane can be a T-shaped tower crane, that is, the crane boom 1 is horizontal, and the tail end of the front arm 101 of the crane boom 1 can be provided with a lengthened arm, so as to facilitate hoisting of a long-distance heavy object, increase the hoisting range of the tower crane, and improve the working efficiency; the tower crane can also be a movable arm type tower crane as shown in fig. 2, namely, the crane arm 1 is a movable arm type tower crane, the movable arm type tower crane can realize the amplitude variation of the movable arm through a hoisting rope and an amplitude variation pulley block, and the tower top does not need to be arranged, so that the tower crane is more convenient to transport and install and higher in safety. In the embodiment specifically, each standard section constituting the tower body 2 is typically 5.7 meters in length, and the tower body 2 is constituted by 20 standard sections; in a crane arm 1 of a T-shaped tower crane, the lengths of a front arm 101 and a rear arm 102 are generally 17 meters, and the weight is borne within 31 tons; in a crane arm 1 of the movable arm type tower crane, a rear arm 102 is usually 17 meters, a front arm 101, namely the movable arm, can be formed by three 17-meter-long main arms and a goose head arm, the total length is 67 meters, the hoisting span can be reduced by using the goose head arm, and the safety distance of equipment is increased. In the embodiment, the height of the tower body 2 and the length of the crane arm 1 can be set to other lengths according to requirements.
In the embodiment, as shown in fig. 1 and 2, in particular, the pulling device comprises a pulling rope 3 and a guide rail 4, the guide rail 4 is a circular slide rail fixed around the bottom of the tower body 2, the pulling rope 3 is connected and tensioned with the guide rail 4 and the rear arm 102 of the crane arm 1, and the pulling rope 3 can slide along the guide rail 4.
In an embodiment, as shown in fig. 1 and 2, the pulling device further includes a connecting column 5 disposed between the bottom of the tower body 2 and the guide rail 4, one end of the connecting column 5 is fixedly connected to the bottom of the tower body 2 and can rotate with the tower body 2, and the other end is connected to the guide rail 4 through a sliding pull ring 11 and can slide with the guide rail 4; the pull-cord 3 is connected to the slider pull-ring 11 and tensioned. In the embodiment, one end of the connecting column 5 is fixed with the bottom of the tower body 2 and can correspondingly rotate along with the rotation of the tower body 2, and the other end of the connecting column 5 is connected to the sliding pull ring 11 on the guide rail 4, so that the connecting column 5 can drive the sliding pull ring 11 to slide along the guide rail 4 while rotating; in the embodiment, the crane boom 1 rotates along with the rotation of the tower body 2, so as to drive the traction rope 3 to rotate correspondingly, and as the traction rope 3 is connected to the sliding pull ring 11 and tensioned, the traction rope 3 further acts on the sliding pull ring 11, so as to drive the sliding pull ring 11 to slide along the guide rail 4; in summary, under the driving of the turntable 10, the boom 1, the hauling rope 3, the connecting column 5 and the sliding pull ring 11 all rotate in the same direction and at the same speed, so that the smooth and stable rotation of the boom 1 is ensured while no counterweight is realized, the flexibility of the boom 1 is not affected, and the efficiency and the safety of the boom are improved.
In an embodiment, as shown in fig. 1 and 2, in order to further improve the stability of the tower crane, the connecting column 5 may be configured to be a hollow box structure, and a main winch for the tower crane, a variable amplitude winch, and the like are both disposed in the box of the connecting column 5. This kind of structure is through setting up drive sabot 10, hoist engine and spliced pole 5 etc. and being close to 2 bottoms of body of the tower to make the focus of tower crane reduce, increased its stability.
In the embodiment, as shown in fig. 1 and 2, the bottom of the tower body 2 is further provided with a fixing rod 7, and one end of the fixing rod 7 is fixedly connected with the bottom of the tower body 2 and can rotate along with the tower body 2; the other end of the tower body is connected with the guide rail 4 through a sliding pull ring 11, can slide along with the guide rail 4 and is connected with the upper end of the tower body 2 in a tensioning way through a stable pull rope 6; the fixing rods 7 are symmetrically and uniformly arranged. In the embodiment, because the fixing rods 7 are symmetrically and uniformly arranged, and the lower ends of the stabilizing pull ropes 6 are fixedly connected to the outward end parts of the fixing rods 7, the forces of the stabilizing pull ropes 6 acting on the tower body 2 are also symmetrically and uniformly distributed, so that the tower body 2 can be further stabilized. Simultaneously, the outside tip of dead lever 7 still is connected with guide rail 4 through slip pull ring 11, further drives slip pull ring 11 and slides along guide rail 4 under the drive of body of the tower 2 to make firm stay cord 6 not influenced because of the rotation of body of the tower 2 to body of the tower 2's firm effect. In order to stabilize the tower 2, the stabilizing pull cord 6 should normally be connected to the upper end of the tower 2, and the distance of the upper end of the stabilizing pull cord 6 from the bottom of the tower 2 should normally be more than half the total height of the tower 2.
In an embodiment, as shown in fig. 1 and 2, a base is provided at the bottom of the tower body 2, the base includes bottom beams 8 radially arranged from the center to the periphery, the guide rail 4 is fixed on the bottom beams 8, and the length of the bottom beams 8 is greater than the radius of the guide rail 4 in order to make the tower body more stable; and further, a radial bottom plate 9 is correspondingly arranged below the bottom beam 8, and the width of the radial bottom plate 9 is larger than that of the bottom beam 8. Generally, the width of the bottom plate 9 can be set to be about 3 meters wider than the guide rail 4 on each side, and equipment and machines which are idle on a construction site, such as an excavator, a generator car, a crawler crane and the like, can be placed on the bottom plate 9 to be used as a counterweight, so that the guide rail 4 is further stabilized. In the embodiment, the center of the base is also provided with a hydraulic pump, and the hydraulic pump is used for retracting the bottom beam 8, so that the transportation is facilitated.
It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891043.7U CN214298989U (en) | 2020-12-02 | 2020-12-02 | A revolving tower crane without counterweight |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891043.7U CN214298989U (en) | 2020-12-02 | 2020-12-02 | A revolving tower crane without counterweight |
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| Publication Number | Publication Date |
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| CN214298989U true CN214298989U (en) | 2021-09-28 |
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| CN202022891043.7U Active CN214298989U (en) | 2020-12-02 | 2020-12-02 | A revolving tower crane without counterweight |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998447A (en) * | 2021-10-22 | 2022-02-01 | 三一海洋重工有限公司 | Slewing device and material grabbing machine |
| CN114408764A (en) * | 2022-04-02 | 2022-04-29 | 中国电建集团华东勘测设计研究院有限公司 | Lifting device and lifting method for outer steel strand of wind power concrete tower barrel |
| CN114538299A (en) * | 2022-02-25 | 2022-05-27 | 淄博源泰设备租赁有限公司 | Method and device for enhancing performance of tower crane by additionally arranging tensioning cable rod structure |
| CN119750336A (en) * | 2025-03-06 | 2025-04-04 | 华东送变电工程有限公司 | A lifting machine for transmission tower |
-
2020
- 2020-12-02 CN CN202022891043.7U patent/CN214298989U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998447A (en) * | 2021-10-22 | 2022-02-01 | 三一海洋重工有限公司 | Slewing device and material grabbing machine |
| CN114538299A (en) * | 2022-02-25 | 2022-05-27 | 淄博源泰设备租赁有限公司 | Method and device for enhancing performance of tower crane by additionally arranging tensioning cable rod structure |
| CN114408764A (en) * | 2022-04-02 | 2022-04-29 | 中国电建集团华东勘测设计研究院有限公司 | Lifting device and lifting method for outer steel strand of wind power concrete tower barrel |
| CN114408764B (en) * | 2022-04-02 | 2022-07-12 | 中国电建集团华东勘测设计研究院有限公司 | Lifting device and lifting method for outer steel strand of wind power concrete tower barrel |
| CN119750336A (en) * | 2025-03-06 | 2025-04-04 | 华东送变电工程有限公司 | A lifting machine for transmission tower |
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Effective date of registration: 20250326 Address after: 221000 ho Qiao village, Ho Qiao Town, Copper Mt. District, Xuzhou, Jiangsu, China Patentee after: XUZHOU KAINUO MACHINERY Co.,Ltd. Country or region after: China Address before: No.108, Zhaoxian West Road, jinniuhu street, Liuhe District, Nanjing City, Jiangsu Province, 210000 Patentee before: Nanjing Ping'an heavy lifting Co.,Ltd. Country or region before: China |