CN212503714U - Telescopic tower crane with attachment mechanism for arm support - Google Patents
Telescopic tower crane with attachment mechanism for arm support Download PDFInfo
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- CN212503714U CN212503714U CN202021966587.9U CN202021966587U CN212503714U CN 212503714 U CN212503714 U CN 212503714U CN 202021966587 U CN202021966587 U CN 202021966587U CN 212503714 U CN212503714 U CN 212503714U
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- 238000010276 construction Methods 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000009194 climbing Effects 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
A cantilever crane telescopic tower crane with an attachment mechanism belongs to the technical field of tower cranes of construction machinery. The device comprises a mounting base, a jacking hydraulic pump station, a climbing frame, a main arm attachment mechanism, an arm support main winch and a balance weight, wherein the main arm attachment mechanism is used for assisting the stability of the main arm through a building under construction; the arm support is a telescopic arm support, the front ends of the telescopic arm and each stage of telescopic sleeve are respectively provided with a stay rope, the stay rope is in hoisting connection with the stay rope through a support at the top of the main arm, and the stay rope is used for tensioning the telescopic arm support, so that the stress borne by the telescopic arm support is reduced. The length of the arm support can be reduced, and the arm support is suitable for operation in a narrow space. The main arm attachment mechanism realizes auxiliary support of the main arm, avoids overturning of the main arm, reduces overturning moment of the main arm, can move relative to the main arm in the vertical direction, avoids the gravity of the main arm acting on an attached object, and reduces damage to an attached building.
Description
Technical Field
The utility model relates to a tower machine especially is applicable to the scalable tower machine of cantilever crane with attachment mechanism that construction used belongs to engineering machine tool trade technical field.
Background
The tower crane is important equipment for realizing mechanization and automation of production, reducing labor intensity and improving production efficiency in modern building industry. With the increase of high-rise and super high-rise buildings, the independent height tower crane cannot completely meet the requirement of large-height hoisting work. When the tower body height is higher, the tower body bending moment increases, and tower machine overall stability reduces, so when generally surpassing free height, tower crane must adopt to adhere to the vaulting pole and attach the tower body on the building to reduce the tower body atress, along with the rising of building, the tower machine can adopt the multichannel to adhere to the vaulting pole, makes the tower machine reach higher height. When the tower crane is limited by a construction site, the tower crane is positioned at the corner of a building at the installation position, the attachment distance is far, the attachment brace rod is subjected to large stress by adopting a traditional anchoring method under the unfavorable conditions of over-small angle and the like of the attachment brace rod, so that the design section of the attachment brace rod is too large, and the length is too long. The existing attachment mode completely limits the degree of freedom of the main arm, the main arm cannot move up and down, and the main arm and the attachment are greatly stressed.
Disclosure of Invention
Aiming at the defects in the technology, the cantilever crane telescopic tower crane with the attachment mechanism is provided, the structure is increased, the weight is lighter, and the cantilever crane telescopic tower crane is flexibly connected with a construction building to ensure the stable structure.
In order to realize the technology, the utility model discloses a scalable tower crane of cantilever crane with attachment mechanism, including the installation base of tower crane, jacking hydraulic power unit, climbing frame, main arm attachment mechanism, cantilever crane main hoist and counter weight, the main arm sets up near the construction building, and the main arm passes through main arm attachment mechanism and main arm attachment sliding connection, and the main arm increases along with the construction of building to main arm attachment moves upwards along with the construction of building simultaneously, assists the stability of main arm through the building in the construction; the arm support is a telescopic arm support, a guy rope with one end connected with the telescopic arm support is arranged on the telescopic arm support, the other end of the guy rope is mutually hinged with a guy rope winch arranged behind the telescopic arm support through a support at the top of the main arm and provides a pulling force, and the guy rope tensions the telescopic arm support to reduce the stress born by the telescopic arm support.
The telescopic boom frame is of a multi-stage telescopic sleeve structure, a linkage hydraulic device is arranged in the multi-stage telescopic sleeve to control the telescopic motion, a telescopic arm is arranged at the foremost end of the multi-stage telescopic sleeve, the telescopic arm is telescopic in a first-stage telescopic sleeve, the first-stage telescopic sleeve is telescopic in a second-stage telescopic sleeve in a sliding mode, and the multi-stage telescopic function is realized by the way of analogy; the front ends of the telescopic arm and each stage of telescopic sleeves are provided with a guy cable which is connected with a guy cable winch through a support at the top of the main arm.
The telescopic boom is characterized in that pulleys and steel cables are further arranged between the multi-stage sleeves of the telescopic boom to assist the telescopic boom to work so as to shorten the volume of the linkage hydraulic device, the structure of a three-stage telescopic sleeve is taken as an example, a traction sliding mechanism is arranged in the first-stage telescopic sleeve, the tail end of the telescopic boom is provided with a traction fixer, the traction fixer realizes the function of telescopic movement in the first-stage telescopic sleeve under the traction effect of the traction sliding mechanism, and the traction sliding mechanism is specifically a steel cable pulley block: inside front end and the rear end of first order telescopic sleeve all are equipped with a pulley, be equipped with the steel cable between two pulleys, the traction fixation ware of telescopic boom tail end is fixed on the steel cable between two pulleys, produce the shrink of supplementary telescopic boom promptly after traction force when the steel cable both ends, rear end position is equipped with linkage hydraulic means in the telescopic sleeve of second level, set up the pulley on linkage hydraulic means, second level telescopic sleeve rear end inboard is equipped with pulley and steel cable equally, when linkage hydraulic means is flexible, the steel cable one end of setting on the pulley is fixed with the telescopic sleeve in the telescopic sleeve of second level, one end is pull, the pulley that sets up in the telescopic sleeve rear end outside of second level receives the traction, thereby supplementary second level telescopic sleeve that drags moves telescopically in third level telescopic sleeve.
The main arm attachment mechanism comprises four fixing supports a, a fixing support b, a fixing support c and a fixing support d, one ends of the fixing supports a, the fixing support b, the fixing support c and the fixing support d are connected with the main arm in a sliding mode, and the other ends of the fixing supports a connected support with a main arm attachment, namely a construction building.
The lifting frame body wrapped on the outer side of the main arm is arranged at the sliding connection position of one end of each of the fixed support a, the fixed support b, the fixed support c and the fixed support d and the main arm, the lifting frame body is connected with the main arm support in a sliding mode through four groups of idler wheels a, idler wheels b, idler wheels c, idler wheels d and the opening and closing fixing device, the opening and closing fixing device is used for enabling the lifting frame body to ascend to a proper position and then to be tightly fixed on the main arm, and the idler wheels a, the idler wheels b, the idler wheels c and the idler wheels d are driven by the jacking.
The lifting frame body is of a double-layer frame body structure, the inner layer is formed by combining a shaft a, a shaft b, a shaft c and a shaft d, two ends of the shaft a, the shaft b, the shaft c and the shaft d extend in a crossed mode, the outer layer is provided with a fixed shaft a, a fixed shaft b, a fixed shaft c and a fixed shaft d through two ends of the shaft a, the shaft b, the shaft c and the shaft d in a crossed mode, springs are arranged at two ends of all the fixed shafts to achieve pre-pressure and compensate the position of the main arm when the main arm moves up and down, and the roller a, the roller b, the roller c and the roller d which are connected with the main arm in a sliding mode and can ascend along.
Has the advantages that:
the utility model discloses a davit is flexible cantilever crane, and the quality is lighter than conventional cantilever crane, has reduced the quality of counter weight simultaneously, has effectively improved the safety of tower crane, can reduce cantilever crane length, is fit for operating in narrow and small space; meanwhile, the guy cable and each stage of the telescopic boom are connected and tensioned with the guy cable in a hoisting mode, so that the load bearing capacity of the telescopic boom is guaranteed, the main arm attachment mechanism is arranged on the main arm and is convenient for being connected with a construction building in a quick and fixed mode, auxiliary support for the main arm is achieved, overturning of the main arm is avoided, overturning moment of the main arm is reduced, safety of a tower crane is further improved, the auxiliary mechanism can move relative to the main arm in the vertical direction, the gravity action of the main arm on an attachment object is avoided, damage to the attached building is reduced, the resistance of the tower crane to strong wind and strong vibration is improved, and the telescopic boom has wide practicability.
Drawings
Fig. 1 is a schematic structural diagram of a tower crane with a telescopic boom of the present invention;
fig. 2 is a schematic view of the telescopic boom structure of the tower crane of the telescopic boom of the present invention;
fig. 3 is a schematic structural diagram of the main arm attaching mechanism of the telescopic boom support of the present invention.
In the figure: the device comprises a mounting base-1, a jacking hydraulic pump station-2, a climbing frame-3, a main arm-4, a main arm attachment mechanism-5, an attached object-6, a telescopic arm support-7, a guy cable-8, a guy cable hoist-9, a main hoist-10, a counterweight-11, a linkage hydraulic device-21, a fixed support a-31, a fixed support b-32, a fixed support c-33, a fixed support d-34, a roller a-36, a roller b-37, a roller c-38, a roller d-39, a fixed shaft a-41, a fixed shaft b-42, a fixed shaft c-43, a fixed shaft d-44, a shaft a-51, a shaft b-52, a shaft c-53 and a shaft d-54.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 and 2, the utility model discloses a scalable tower machine of cantilever crane with attachment mechanism, including installation base 1, jacking hydraulic power unit 2, the frame 3 that climbs, main arm 4, main arm attachment mechanism 5, cantilever crane main hoist 10 and counter weight 11 of tower machine, its characterized in that: the main arm 4 is arranged near a construction building, the main arm 4 is connected with the main arm attachment 6 in a sliding mode through the main arm attachment mechanism 5, the main arm 4 is heightened along with the construction of the building, the main arm attachment 6 moves upwards along with the construction of the building at the same time, and the main arm 4 is assisted by the building in construction; the arm support is a telescopic arm support 7, a guy cable 8 with one end connected with the telescopic arm support 7 is arranged on the telescopic arm support 7, the other end of the guy cable 8 is hinged with a guy cable winch 9 arranged behind the telescopic arm support 7 through a support at the top of the main arm 4 to provide pulling force, and the guy cable 8 tensions the telescopic arm support 7 to reduce stress borne by the telescopic arm support 7.
As shown in fig. 2, the telescopic boom support 7 is a multi-stage telescopic sleeve structure, a linkage hydraulic device 21 is arranged in the multi-stage telescopic sleeve to control the telescopic motion, a telescopic arm is arranged at the foremost end of the multi-stage telescopic sleeve, the telescopic arm is telescopic in a first-stage telescopic sleeve, the first-stage telescopic sleeve is telescopic in a second-stage telescopic sleeve in a sliding manner, and the multi-stage telescopic function is realized by analogy; the front ends of the telescopic boom and each stage of telescopic sleeves are provided with a guy cable 8 which is connected with a guy cable winch 9 through a support at the top of the main boom 4. Still be equipped with pulley and the supplementary scalable cantilever crane 7 work of cable wire between the multistage sleeve of scalable cantilever crane 7 and in order to shorten linkage hydraulic means 21's volume, take the structure of tertiary telescope tube as the example explanation, be equipped with in the first order telescope tube and pull slide mechanism, the telescopic boom tail end is equipped with pulls the fixer, pulls the fixer and realizes the function of flexible removal in the first order telescope tube under the traction effect who pulls slide mechanism, and wherein pull slide mechanism specifically is the cable assembly pulley: inside front end and the rear end of first order telescopic sleeve all are equipped with a pulley, be equipped with the steel cable between two pulleys, the traction fixation ware of telescopic boom tail end is fixed on the steel cable between two pulleys, produce the shrink of supplementary telescopic boom promptly after traction force when the steel cable both ends, rear end position is equipped with linkage hydraulic means 21 in the second level telescopic sleeve, set up the pulley on linkage hydraulic means 21, second level telescopic sleeve rear end inboard is equipped with pulley and steel cable equally, when linkage hydraulic means 21 is flexible, the steel cable one end that sets up on the pulley is fixed with the telescopic sleeve in the second level telescopic sleeve, one end is pull, the pulley that sets up in the second level telescopic sleeve rear end outside receives the traction, thereby supplementary second level telescopic sleeve that drags concertina movement in third level telescopic sleeve.
As shown in fig. 3, the main arm attaching mechanism 5 includes four fixing brackets a31, a fixing bracket b32, a fixing bracket c33 and a fixing bracket d34, wherein one end of the fixing bracket a31, the fixing bracket b32, the fixing bracket c33 and the fixing bracket d34 is slidably connected to the main arm 4, and the other end is connected to and supported by the main arm attaching object 6, i.e., the construction building 35. A lifting frame body wrapped on the outer side of the main arm 4 is arranged at the sliding connection position of one end of the fixed support a31, the fixed support b32, the fixed support c33 and the fixed support d34 and the main arm 4, the lifting frame body is connected with the support of the main arm 4 in a sliding mode through four groups of rollers a36, a roller b37, a roller c38, a roller d39 and an opening and closing fixing device, the opening and closing fixing device is used for enabling the lifting frame body to be tightly fixed on the main arm 4 when the lifting frame body is lifted to a proper position, and the roller a36, the roller b37, the roller c38 and the roller d39 are driven by the jacking hydraulic pump. The lifting frame body is of a double-layer frame body structure, an inner layer is formed by combining a shaft a51, a shaft b52, a shaft c53 and a shaft d54, two ends of the shaft a51, the shaft b52, the shaft c53 and the shaft d 68629 extend in a crossed mode, a fixed shaft a41, a fixed shaft b42, a fixed shaft c43 and a fixed shaft d44 extend in a crossed mode from two ends of the shaft a51, the shaft b52, the shaft c53 and the shaft d54 from two ends, springs are arranged in two ends of all the fixed shafts to achieve pre-pressure and compensate the position of the main arm 4 when the main arm 4 moves up and down, and a roller a36, a roller b37, a roller c38 and a roller d39 which are connected with the main arm 4 in a sliding mode and can ascend along the main arm 4 are arranged on the shaft a.
Claims (6)
1. The utility model provides a scalable tower machine of cantilever crane with attachment mechanism, it includes installation base (1), jacking hydraulic power unit (2), the frame (3) that climbs, main arm (4), main arm attachment mechanism (5), cantilever crane main hoist (10) and counter weight (11) of tower machine, its characterized in that: the main arm (4) is arranged near a construction building, the main arm (4) is connected with a main arm attachment (6) in a sliding mode through a main arm attachment mechanism (5), the main arm (4) is heightened along with the construction of the building, the main arm attachment (6) moves upwards along with the construction of the building at the same time, and the main arm (4) is assisted to be stable through the building in construction; the arm support is a telescopic arm support (7), a guy cable (8) with one end connected with the telescopic arm support (7) is arranged on the telescopic arm support (7), the other end of the guy cable (8) is hinged with a guy cable winch (9) arranged behind the telescopic arm support (7) through a top support of the main arm (4) and provides pulling force, and the guy cable (8) tensions the telescopic arm support (7) to reduce stress borne by the telescopic arm support (7).
2. The boom telescopic tower crane with the attachment mechanism as claimed in claim 1, wherein: the telescopic arm support (7) is of a multi-stage telescopic sleeve structure, a linkage hydraulic device (21) is arranged in the multi-stage telescopic sleeve to control the telescopic motion, a telescopic arm is arranged at the foremost end of the multi-stage telescopic sleeve, the telescopic arm is telescopic in a first-stage telescopic sleeve, and the first-stage telescopic sleeve is telescopic in a second-stage telescopic sleeve in a sliding mode, so that the multi-stage telescopic function is realized; the front ends of the telescopic arms and each stage of telescopic sleeves are provided with a guy cable (8), and the guy cable (8) is connected with a guy cable winch (9) through a support at the top of the main arm (4); pulleys and steel cables are arranged among the multi-stage sleeves of the telescopic arm support (7) to assist the telescopic arm support (7) to work so as to shorten the volume of the linkage hydraulic device (21).
3. The boom telescopic tower crane with the attachment mechanism as claimed in claim 2, wherein: multistage telescope tube structure is tertiary telescope tube's structure, is equipped with in the first order telescope tube and pulls slide mechanism, and flexible arm tail end is equipped with pulls the fixer, pulls the fixer and realizes the function of flexible removal in the first order telescope tube under the traction effect who pulls slide mechanism, and wherein pulls slide mechanism and is the steel cable assembly pulley: inside front end and the rear end of first order telescopic sleeve all are equipped with a pulley, be equipped with the steel cable between two pulleys, the traction fixation ware of telescopic boom tail end is fixed on the steel cable between two pulleys, produce the shrink of supplementary telescopic boom promptly after traction force when the steel cable both ends, rear end position is equipped with linkage hydraulic means (21) in the telescopic sleeve of second level, set up the pulley on linkage hydraulic means (21), second level telescopic sleeve rear end inboard is equipped with pulley and steel cable equally, when linkage hydraulic means (21) are flexible, steel cable one end that sets up on the pulley in the telescopic sleeve of second level is fixed with the telescopic sleeve, one end is pull, the pulley that sets up in the telescopic sleeve of second level rear end outside receives the traction, thereby supplementary second level telescopic sleeve that drags is flexible in third level telescopic sleeve and is removed.
4. The boom telescopic tower crane with the attachment mechanism as claimed in claim 1, wherein: the main arm attachment mechanism (5) comprises four fixing supports a (31), a fixing support b (32), a fixing support c (33) and a fixing support d (34), one ends of the fixing supports a (31), the fixing support b (32), the fixing support c (33) and the fixing support d (34) are connected with the main arm (4) in a sliding mode, and the other ends of the fixing supports a (31), the fixing support b (32), the fixing support c (33) and the fixing support d (34) are connected with and supported by a construction building (35) serving as a main arm attachment (6).
5. The boom telescopic tower crane with the attachment mechanism as claimed in claim 4, wherein: the lifting frame body wrapped on the outer side of the main arm (4) is arranged at the sliding connection position of one end of the fixed support a (31), the fixed support b (32), the fixed support c (33) and the fixed support d (34) and the main arm (4), the lifting frame body is connected with the support of the main arm (4) in a sliding mode through four groups of rollers a (36), rollers b (37), rollers c (38), rollers d (39) and a folding and fixing device, the folding and fixing device is used for tightly fixing the lifting frame body on the main arm (4) when the lifting frame body rises to a proper position, and the rollers a (36), the rollers b (37), the rollers c (38) and the rollers d (39) are driven by the lifting hydraulic pump station (2).
6. The boom telescopic tower crane with the attachment mechanism as claimed in claim 4, wherein: the lifting frame body is a double-layer frame body structure, the inner layer is formed by combining a shaft a (51), a shaft b (52), a shaft c (53) and a shaft d (54), two ends of the shaft a (51), the shaft b (52), the shaft c (53) and the shaft d (54) are crossed and extended, the outer layer is provided with a fixed shaft a (41), a fixed shaft b (42), a fixed shaft c (43) and a fixed shaft d (44) which are crossed and extended through two ends of the shaft a (51), the shaft b (52), the shaft c (53) and the shaft d (54), springs are arranged in two ends of all the fixed shafts to realize pre-pressure and compensate the position of the main arm (4) when moving up and down, the shaft a (51), the shaft b (52), the shaft c (53) and the shaft d (54) are respectively provided with a roller a (36), a roller b (37), a roller c (38) and a roller d (39) which are connected with the main arm (4) in a sliding way and can ascend along the main arm (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021966587.9U CN212503714U (en) | 2020-09-09 | 2020-09-09 | Telescopic tower crane with attachment mechanism for arm support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021966587.9U CN212503714U (en) | 2020-09-09 | 2020-09-09 | Telescopic tower crane with attachment mechanism for arm support |
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| Publication Number | Publication Date |
|---|---|
| CN212503714U true CN212503714U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021966587.9U Expired - Fee Related CN212503714U (en) | 2020-09-09 | 2020-09-09 | Telescopic tower crane with attachment mechanism for arm support |
Country Status (1)
| Country | Link |
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| CN (1) | CN212503714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093682A (en) * | 2020-09-09 | 2020-12-18 | 徐州工程学院 | Arm support telescopic tower crane with attachment mechanism and working method thereof |
-
2020
- 2020-09-09 CN CN202021966587.9U patent/CN212503714U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093682A (en) * | 2020-09-09 | 2020-12-18 | 徐州工程学院 | Arm support telescopic tower crane with attachment mechanism and working method thereof |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 |