CN217025112U - Tower crane with nonstandard crane boom - Google Patents
Tower crane with nonstandard crane boom Download PDFInfo
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- CN217025112U CN217025112U CN202220815917.7U CN202220815917U CN217025112U CN 217025112 U CN217025112 U CN 217025112U CN 202220815917 U CN202220815917 U CN 202220815917U CN 217025112 U CN217025112 U CN 217025112U
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Abstract
The utility model relates to the technical field of building engineering, and aims to solve the technical problem that a space interference conflict exists between an existing tower crane and an adjacent building and between the existing tower crane. The crane boom is formed by connecting a plurality of boom sections, the length of the second boom section is adjusted according to actual needs, the length of the whole crane boom can be adjusted, and the balance degree corresponding to the type and the number of the balancing weights is adjusted, so that the problem of space interference conflict between the tower crane and a building and between adjacent tower cranes is avoided, and the safety of the main structure of the tower crane is also ensured.
Description
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to a tower crane with nonstandard crane jib.
Background
The tower crane is a common device for building construction, and the existing tower crane component is made of standard parts or standard sections, so that the tower crane is suitable for most building construction occasions. However, the tower crane in the multi-building project not only needs to consider material lifting and self assembly and disassembly, but also needs to consider the position relationship between the tower crane and the adjacent tower crane and the structure, if the construction progress changes, if the building with slow progress is faster than the expected progress, the problem that the construction of the main body structure of the tower crane conflicts with the adjacent building and the large arm of the adjacent tower crane is very likely to exist.
In view of the above, a non-standard tower crane is needed to solve the problem of space interference conflict with an adjacent tower crane.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tower crane with non-standard crane arms, and solves the technical problem that space interference conflict exists between the existing tower crane and adjacent buildings and between the existing tower crane and the adjacent tower crane.
In order to achieve the purpose, the specific technical scheme of the tower crane with the non-standard crane boom section is as follows:
the utility model provides a tower crane of nonstandard festival jib loading boom, includes the body of the tower and fixes the base of body of the tower bottom, the upper portion of body of the tower is provided with the stock, install the stock platform on the stock, the top of body of the tower is provided with rotary platform, the last control room of installing of rotary platform, rotary platform's both ends are connected with jib loading boom and balance arm respectively, be provided with the lifting hook on the jib loading boom, be provided with the balancing weight on the balance arm, the jib loading boom includes first arm festival, second arm festival, third arm festival and the arm point that the head and the tail connected gradually, install the deep bead on the jib loading boom. Through many arm sections structural connection constitution jib loading boom, adjust the length of second arm section according to actual demand, can adjust the length of whole davit to through the kind that sets up the balancing weight and the adjustment of quantity degree that corresponds, both avoided tower crane and adjacent building, adjacent tower crane to have the problem that space interference conflicts, also guaranteed the major structure safety of tower crane. The wind shield is arranged on the crane arm, so that the difference of the working wind loads of the crane arm and the balance arm is adjusted, the working resistance of the tower crane is reduced, and the crane arm is ensured to be in the downwind direction through the wind shield effect when strong wind comes in a non-working state.
Preferably, the wind deflector is fixed to a diagonal web member of the boom by a U-bolt.
Further, a base plate is arranged between the nut and the wind shield and used for reducing pressure intensity and stress.
Further, the length of the second arm section is 7-9.5 m.
Preferably, the lifting hook is connected to the amplitude-variable trolley through an amplitude-variable steel wire rope, and the amplitude-variable trolley is driven by the amplitude-variable steel wire rope to move along the crane arm.
Further, the length, the width and the height of the second arm section are 7.5m, 1.1m and 2.16m respectively, and the weight of the second arm section is 1.01t
The tower crane with the nonstandard crane boom has the following advantages:
constitute the jib loading boom through many arm festival structural connection, adjust the length of second arm festival according to the actual demand, can adjust the length of whole davit to through the kind that sets up the balancing weight and the adjustment of quantity degree that corresponds, both avoided tower crane and adjacent building, adjacent tower crane to have the problem that space interference conflicts, also guaranteed the major structure safety of tower crane. The wind shield is arranged on the crane arm, so that the difference of the working wind loads of the crane arm and the balance arm is adjusted, the working resistance of the tower crane is reduced, and the crane arm is ensured to be in the downwind direction through the wind shield effect when strong wind comes in a non-working state.
Drawings
FIG. 1 is a front view of a tower crane with a non-standard jib boom according to the present invention;
FIG. 2 is a multi-arm joint structure diagram of a boom provided by the present invention;
FIG. 3 is a block diagram of the windshield installation provided by the present invention;
FIG. 4 is a partial enlarged view taken at A in FIG. 3;
FIG. 5 is a structural diagram of the upper part of a tower body of a tower crane with a nonstandard crane boom;
FIG. 6 is a connection structure diagram of a crane boom, an amplitude variation trolley and a hook provided by the utility model.
In the figure: 10. a base; 11. a tower body; 111. sleeving a frame; 112. a jacket frame platform; 113. a control room; 12. a cargo boom; 121. a first arm section; 122. a second arm section; 123. a third arm section; 124. an arm tip; 13. a balance arm; 14. a balancing weight; 15. a hook; 16. a rotating platform; 17. a wind deflector; 18. a diagonal web member; 181. a grab rail; 182. a U-shaped bolt; 184. a backing plate; 19. a variable amplitude trolley; 20. an amplitude-variable steel wire rope.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 to 6, the utility model provides a tower crane with a non-standard crane boom, which comprises a tower body 11 and a base 10 for fixing the bottom of the tower body 11, wherein a climbing hand is arranged in the tower body 11, a sleeve frame 111 is arranged on the upper part of the tower body 11, a sleeve frame platform 112 is arranged on the sleeve frame 111, a rotary platform 16 is arranged at the top end of the tower body 11, a control chamber 113 is arranged on the rotary platform 16, a crane boom 12 and a balance arm 13 are respectively connected to two ends of the rotary platform 16, a lifting hook 15 is arranged on the crane boom 12, a balancing weight 14 and a lifting mechanism are arranged on the balance arm 13, the crane boom 12 comprises a first boom section 121, a second boom section 122, a third boom section 123 and a boom tip 124 which are sequentially connected end to end, and a wind shield 17 is arranged on the crane boom 12.
The multi-arm section structure through first arm section 121, second arm section 122, third arm section 123 and arm point 124 is connected and is constituted the jib loading boom, especially adjusts the length of second arm section 122 according to actual demand, can adjust the length of whole davit to through the kind and the quantity adjustment that set up the balancing weight degree that corresponds, both avoided tower crane and adjacent building, adjacent tower crane to have the problem that the space interferes the conflict, also guaranteed the major structure safety of tower crane.
The wind shield 17 is used for adjusting the difference between the working wind loads of the crane boom 12 and the balance arm 13, so as to reduce the working resistance of the tower crane, and ensure that the crane boom 12 is in the downwind direction through a wind vane effect when strong wind comes in a non-working state.
The wind deflector 17 is fixed on the diagonal web member 18 of the boom 12 by a U-shaped bolt 182 and a nut, a backing plate 184 is provided between the nut and the wind deflector 17, the wind deflector 17 and the backing plate 184 are provided with mounting through holes, and the U-shaped bolt 182 penetrates the wind deflector 17 and the backing plate 184 and is fixed by the nut. The outer end of the U-bolt 182 is adjacent the grab bar 181.
Preferably, the length of the second arm segment 122 is 7m to 9.5 m.
In one embodiment, the length, width and height of the first arm segment 121 are 10m, 1.1m and 2.56m, and the number of the first arm segments 121 is 2.02 t; the length, width and height of the second arm section 122 are 7.5m, 1.1m and 2.16m respectively, and the number of the second arm sections 122 is 1.01 t; the length, width and height of the third arm sections 123 are respectively 10m, 1.1m and 2.32m, and the number of the third arm sections 123 is 1.03 t; the length, width and height of the arm tips 124 are 0.82m, 0.84m and 1.87m, respectively, and the number of the arm tips 124 is 0.1 t.
In the actual adjustment, the second arm section 122 is preferably adjusted, and in one embodiment, the distance between the wind deflector provided in the second arm section and one end of the second arm section is 2250 mm.
In one embodiment, the weight blocks 14 include a first type weight block, a second type weight block and a third type weight block, the weights of the first type weight block, the second type weight block and the third type weight block are 2.8t, 2.0t and 1.3t, respectively, the number of the first type weight block is two, the number of the second type weight block is two, and the number of the third type weight block is one.
The specific installation mode is as follows:
taking the length of the boom 12 as an example of 27.5m, the boom 12 is assembled on the ground, and a wind deflector 17 is mounted, and the wind deflector 17 is mounted on the inner side of the arm section and fixed to the diagonal web member 18 of the boom by a U-shaped bolt 182.
And hanging a rope at a position 5m in front of and behind 9.0m of the gravity center position of the crane boom assembly with the arm length of 27.5m, and hoisting the crane boom to the tower head. And the crane boom is connected with the tower head by a pin shaft.
When 27.5m of arm length is installed, the distance between the truck crane rotary platform and the tower body center of the tower crane is 56m, the distance between the truck crane rotary platform and the crane arm is 48m, the crane arm length is 73.6m, the allowable crane weight is 7.3t, the lifting height is about 55.8m, and the elevation angle is 49.2 degrees. The hook 15 was 25T and weighed 500 kg.
Mounting counterweight block
The balancing weights are placed in sequence by the first balancing weight, the balancing weights are placed in the left and right centers, and gaps from the two sides of the balancing arm 13 to the main strings on the two sides of the balancing arm 13 are even. The end surface of the balancing weight pin shaft must exceed the balancing weight supporting plate.
When the balancing weight is installed, the rotation center of the truck crane is 56m away from the center of the tower crane body, the lifting point of the truck crane is 48m away from the lifting arm, the arm length of the crane is 73.6m, the allowable lifting weight is 7.3t, the lifting height is about 55.8m, and the elevation angle is 49.2 degrees. Wherein, the hook is 25T, and the weight is 500 kg.
Threading steel wire rope
1) The amplitude variation trolley 19 is driven to the arm root of the crane arm 12 by an amplitude variation mechanism, a temporary mounting bracket is placed on the ground right below the amplitude variation trolley 19, and then the lifting hook 15 is fixed on the bracket.
2) The rope head of the lifting rope is pulled out from the lifting reel, and simultaneously, the lifting mechanism is started to shift down, and the rope head sequentially passes through a crane boom lifting capacity limiter pulley, a crane boom root guide pulley and a pulley block of the luffing trolley and the lifting hook 15.
3) The hoisting rope is fixed at a proper position on the amplitude variable trolley 19 by two rope clamps, and the allowance of not less than 1.2 m is reserved.
4) The wedge-shaped joint is detached from the anti-twist device at the arm tip, the lifting rope is connected with the wedge-shaped joint, the tail part of the lifting rope 1 is bound by a soft steel wire, and the lifting rope is folded back and fixed by a fixing rope clamp.
5) And slowly starting a lifting mechanism to lift the lifting hook to be lifted about 1m away from the upper plane of the support, and checking whether the lifting steel wire rope is fixed firmly.
6) And starting the amplitude changing mechanism to open the amplitude changing trolley 19 and the lifting hook 15 to the arm tip of the crane arm.
7) The wedge-shaped joint is fixed on the arm tip anti-twisting device by a pin shaft and a split pin, the trolley is slowly descended to the bracket below the arm tip 124, a rope clamp for fixing a lifting rope on the amplitude-variable trolley 19 is disassembled, and a lifting steel wire rope is loosened.
By adopting the multi-arm structure, the crane can be applied to actual building construction, the length of the crane boom can be conveniently adjusted, an adjacent main structure constructed to a standard layer is avoided, and the safety and progress of project construction are ensured.
In conclusion, the tower crane with the nonstandard crane boom provided by the utility model is formed by connecting a multi-arm structure, the length of the second arm section is adjusted according to actual requirements, the length of the whole suspension arm can be adjusted, and the corresponding balance degree is adjusted by setting the types and the number of the balancing weights, so that the problem of space interference conflict between the tower crane and adjacent buildings and between adjacent tower cranes is avoided, and the safety of the main structure of the tower crane is ensured. The wind shield is arranged on the crane boom, so that the difference between the working wind loads of the crane boom and the balance arm is adjusted, the working resistance of the tower crane is reduced, and the crane boom is ensured to be in the downwind direction through the wind indicator effect when strong wind in a non-working state comes.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the utility model, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (6)
1. A tower crane with a non-standard crane boom comprises a tower body (11) and a base (10) for fixing the bottom of the tower body (11), the upper part of the tower body (11) is provided with a sleeve frame (111), a sleeve frame platform (112) is arranged on the sleeve frame (111), a rotary platform (16) is arranged at the top end of the tower body (11), a control room (113) is arranged on the rotary platform (16), two ends of the rotary platform (16) are respectively connected with a crane arm (12) and a balance arm (13), a lifting hook (15) is arranged on the lifting arm (12), a balancing weight (14) is arranged on the balancing arm (13), the wind screen is characterized in that the crane boom (12) comprises a first boom section (121), a second boom section (122), a third boom section (123) and a boom tip (124) which are sequentially connected end to end, and a wind screen (17) is mounted on the crane boom (12).
2. A tower crane according to claim 1, wherein the crane boom (12) comprises a diagonal web member (18), and the wind deflector (17) is fixed to the diagonal web member (18) by a U-bolt (182) and a nut.
3. A tower crane according to claim 2, wherein a backing plate (184) is provided between the nut and the wind deflector (17).
4. A tower crane according to claim 3, wherein the second arm segment (122) has a length of 7-9.5 m.
5. The tower crane of a non-standard jib boom according to claim 4, wherein the lifting hook (15) is connected to a luffing trolley (19) through a luffing wire rope (20), and the luffing trolley (19) is driven by the luffing wire rope (20) to move along the jib (12).
6. A tower crane according to claim 5, wherein the second arm section (122) has a length, width and height of 7.5m, 1.1m and 2.16m, respectively, and the second arm section (122) has a weight of 1.01 t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220815917.7U CN217025112U (en) | 2022-04-08 | 2022-04-08 | Tower crane with nonstandard crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220815917.7U CN217025112U (en) | 2022-04-08 | 2022-04-08 | Tower crane with nonstandard crane boom |
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| Publication Number | Publication Date |
|---|---|
| CN217025112U true CN217025112U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220815917.7U Active CN217025112U (en) | 2022-04-08 | 2022-04-08 | Tower crane with nonstandard crane boom |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115959584A (en) * | 2023-02-28 | 2023-04-14 | 徐州建机工程机械有限公司 | Inverted triangle jib loading boom sail structure |
-
2022
- 2022-04-08 CN CN202220815917.7U patent/CN217025112U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115959584A (en) * | 2023-02-28 | 2023-04-14 | 徐州建机工程机械有限公司 | Inverted triangle jib loading boom sail structure |
| CN115959584B (en) * | 2023-02-28 | 2023-11-10 | 徐州建机工程机械有限公司 | Inverted triangle crane boom sail structure |
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