CN101962156A - Foldable fast-assembling tower crane - Google Patents
Foldable fast-assembling tower crane Download PDFInfo
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- CN101962156A CN101962156A CN201010508658.5A CN201010508658A CN101962156A CN 101962156 A CN101962156 A CN 101962156A CN 201010508658 A CN201010508658 A CN 201010508658A CN 101962156 A CN101962156 A CN 101962156A
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- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 241000239290 Araneae Species 0.000 claims description 13
- 230000003028 elevating effect Effects 0.000 claims description 9
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 16
- 239000010410 layer Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
- B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
- B66C23/342—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a foldable fast-assembling tower crane, which comprises a rotary platform, a liftable tower body, a tower body lifting and folding mechanism, a foldable cross arm and a cross arm folding mechanism, wherein the tower body is arranged on the rotary platform; one end of the tower body is movably connected with the rotary platform, and the other end of the tower body is movably connected with one end of the cross arm; the tower body lifting and folding mechanism is respectively connected with the rotary platform and the tower body and is used for controlling the lifting and folding of the tower body; the cross arm folding mechanism is respectively connected with the cross arm and the tower body and is used for controlling the folding of the cross arm. The invention has simple structure and saves the manufacturing cost compared with the traditional self-elevating tower crane. The tower body can be stretched out and contracted in the outer sleeve of the tower body, the lifting height is enough for the buildings with about 6 floors, and the problem that the lifting height of a vehicle-mounted crane is not enough is solved. In addition, the tower body and the hoisting cross arm of the quick-assembly tower crane are folded under the consignment state or the non-working state, so that the quick-assembly tower crane is convenient to transport. Has good market prospect.
Description
Technical field
The present invention relates to the hoisting and transport equipment field, the particularly a kind of collapsible fast-assembling tower machine of floor height that be applied to construct in 20 to 40m low-rise building.
Background technology
In recent years, rural area and samll cities and towns buildings develop into the lower building building of 2 to 3 layers or 3 to 6 layers by single layer structure, and a part of low layer urban architecture simultaneously also needs to transform keeps in repair.In 20 to 40m building,, increased cost for the construction floor height if adopt traditional jack up tower machine then waste one's talent on a petty job.But as adopt its lifting altitude of crane truck just obviously not enough problem to occur.
Summary of the invention
Goal of the invention: technical matters to be solved by this invention is at the deficiencies in the prior art, and a kind of collapsible fast-assembling tower machine is provided.
In order to solve the problems of the technologies described above, the invention discloses a kind of collapsible fast-assembling tower machine, comprise turn table, liftable tower body, tower body elevating folding mechanism, folding transverse arm and transverse arm fold mechanism;
One end of described tower body and described turn table flexibly connect, and an end of the other end and described transverse arm flexibly connects;
Described tower body elevating folding mechanism connects described turn table and tower body respectively, is used to control the lifting of tower body and folding;
Described transverse arm fold mechanism connects described transverse arm and tower body respectively, is used to control the folding of transverse arm.
Among the present invention, preferably, described tower body comprises body of the tower and body of the tower overcoat, and described body of the tower is positioned at the inner chamber of body of the tower overcoat, moves along the inner chamber of body of the tower overcoat.
Among the present invention, preferably, described tower body elevating folding mechanism comprises first winch, tower body folding assembly pulley, tower body lifting pulley group and dead sheave;
The folding assembly pulley of described tower body comprises second assembly pulley that is fixed on first pulley on the turn table and is fixed on body of the tower overcoat below;
Described tower body lifting pulley group comprises the 3rd assembly pulley that is fixed on body of the tower overcoat top and the 4th assembly pulley that is fixed on the body of the tower below;
The rope of described first winch is successively by first pulley, second assembly pulley, the 3rd assembly pulley and the 4th assembly pulley and be fixedly attached to dead sheave, is used to control the lifting of the folding and body of the tower of body of the tower overcoat.
Among the present invention, preferably, be fixedly connected with spider on the described turn table, the below of described spider top and described body of the tower overcoat flexibly connects by bearing pin, and described tower body rotates around bearing pin.
Among the present invention, preferably, described spider below is provided with first pin-and-hole that is used to insert set pin, and described body of the tower overcoat below is provided with second pin-and-hole adaptive with the pin-and-hole of described spider.
Among the present invention, preferably, comprise gas spring, described gas spring one end and described turn table flexibly connect, and the other end and described body of the tower overcoat flexibly connect.
Among the present invention, preferably, described folding transverse arm comprises first transverse arm and second transverse arm, and an end of described second transverse arm and the top of described body of the tower flexibly connect, and an end of the other end of described second transverse arm and described first transverse arm flexibly connects.
Among the present invention, preferably, described transverse arm fold mechanism comprises pull bar diagonal brace, tower cap diagonal brace, counterbalanced weight diagonal brace, transverse arm assembly pulley and is installed in second winch on second transverse arm;
Described transverse arm assembly pulley comprises the 5th pulley, the 6th pulley that is installed in pull bar diagonal brace top that are installed on second transverse arm, is installed in the 7th pulley and transverse arm dead sheave on first transverse arm;
The top of described pull bar diagonal brace is provided with described the 7th pulley, the flexible connection of bottom and described second transverse arm, and the top of described pull bar diagonal brace also connects described first transverse arm by rope;
Captive joint with an end of described second transverse arm in described tower cap diagonal brace bottom, the top is by top, the top of counterbalanced weight diagonal brace and the middle part of described second transverse arm of rope difference cylinder lever connecting rod diagonal brace; Captive joint with an end of described second transverse arm in the bottom of described counterbalanced weight diagonal brace, its top also connects described turn table by rope;
The rope of described second winch passes through the 6th pulley, the 7th pulley, the 8th pulley successively, and captives joint with described transverse arm dead sheave.
Among the present invention, preferably, the end away from tower body on the described turn table is provided with clump weight.
Beneficial effect: the present invention proposes a kind of collapsible fast-assembling tower machine, this tower machine is simple in structure, saves manufacturing cost than traditional jack up tower machine.Body of the tower can in the body of the tower overcoat-shrink, and for about 6 layers lower building building, lifting altitude is enough, has solved the not enough problem of crane truck lifting altitude.And, the fast-assembling tower machine that the present invention proposes, under delivery state or off position, fast-assembling tower machine body of the tower and lifting transverse arm are folded state, are convenient to transportation.Have good market outlook.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is done further to specify, above-mentioned and/or otherwise advantage of the present invention will become apparent.
The structural representation of Fig. 1 during for the upright mode of operation of fast-assembling tower machine of the present invention.
Fig. 2 is the structural representation after fast-assembling tower machine of the present invention folds.
Fig. 3 is the structural representation of fast-assembling tower machine folding process one of the present invention.
Fig. 4 is the structural representation of fast-assembling tower machine folding process two of the present invention.
Fig. 5 is the structural representation of fast-assembling tower machine folding process three of the present invention.
Fig. 6 is the structural representation of the folding assembly pulley of tower body of the present invention.
Fig. 7 is the structural representation of tower body lifting pulley group of the present invention.
Fig. 8 is the structural representation of transverse arm assembly pulley of the present invention.
Fig. 9 is a tower cap diagonal brace apex structure scheme drawing of the present invention.
Figure 10 is a pull bar diagonal brace apex structure scheme drawing of the present invention.
The specific embodiment:
As shown in Figure 1, the invention discloses a kind of collapsible fast-assembling tower machine, comprise turn table 1, liftable tower body, tower body elevating folding mechanism, folding transverse arm and transverse arm fold mechanism.The lower end of described tower body and described turn table 1 flexibly connect, and an end of the other end and described transverse arm flexibly connects; Described tower body elevating folding mechanism connects described turn table and tower body respectively, is used to control the lifting of tower body and folding; Described transverse arm fold mechanism connects described transverse arm and tower body respectively, is used to control the folding of transverse arm.
As Fig. 1, Fig. 4 and shown in Figure 5, described liftable tower body comprises body of the tower 4 and body of the tower overcoat 3, and body of the tower 4 is positioned at the inner chamber of body of the tower overcoat 3, moves along the inner chamber of body of the tower overcoat 3.The body of the tower top flexibly connects by transverse arm bearing pin 28 and transverse arm.
Described tower body elevating folding mechanism comprises first hoisting machine 13, tower body folding assembly pulley 14, tower body lifting pulley group 16 and dead sheave 18.The folding assembly pulley of tower body comprises the first pulley 14a that is fixed on the turn table 1 and is fixed on second assembly pulley of body of the tower overcoat 3 belows that second assembly pulley comprises two parallel pulley 14b, 14c, as shown in Figure 6.Described tower body lifting pulley group 16 comprises the 3rd assembly pulley 15 that is fixed on body of the tower overcoat top and the 4th assembly pulley 14 that is fixed on the body of the tower below; The 3rd assembly pulley 15 comprises pulley 15a and two parallel pulleys compositions of pulley 15b, and the 4th assembly pulley 16 comprises that pulley 16a, pulley 16b and three of pulley 16c are the pulley composition of triangle arrangement, as shown in Figure 7.
Be fixedly connected with spider 25 on the described turn table 1, spider 25 tops are connected by bearing pin 20 with the below of described body of the tower overcoat 3, and described tower body is around bearing pin 20 rotations.Spider 25 belows are provided with first pin-and-hole 31 that is used to insert set pin 27, body of the tower overcoat 3 belows are provided with second pin-and-hole 32 adaptive with first pin-and-hole 31 of spider, after tower body was upright, set pin 27 inserted in overlapped first pin-and-hole 31 and second pin-and-hole 32, as shown in Figure 1.The front portion of turn table 1 is equipped with gas spring 26, and gas spring 26 1 ends and described turn table 1 flexibly connect, and the other end and described body of the tower overcoat 3 flexibly connect.End away from tower body on the turn table 1 is provided with clump weight 2.
Described folding transverse arm comprises first transverse arm 5 and second transverse arm 6.One end of second transverse arm 6 flexibly connects by the top of transverse arm bearing pin 28 with described body of the tower 4, one end of the other end of second transverse arm 6 and first transverse arm 5 flexibly connects by bearing pin, and point of connection is positioned at the top of transverse arm, when making win transverse arm 5 and second transverse arm 6 folding, point of connection moves up, two ends move down, like this, because transverse arm has certain thickness, first transverse arm 5 and second transverse arm 6 can guarantee when launching that whole transverse arm is that rigidity is launched, and can not cause situation folding when slinging weight.
Described transverse arm fold mechanism comprises pull bar diagonal brace 7, tower cap diagonal brace 8, counterbalanced weight diagonal brace 9, transverse arm assembly pulley and is installed in second hoisting machine 10 on second transverse arm 6.The transverse arm assembly pulley comprises the 5th pulley 12a, the 6th pulley 12d that is installed in pull bar diagonal brace 7 tops that are installed on second transverse arm, is installed in the 7th pulley 12b and transverse arm dead sheave 12c on first transverse arm 5.
The top of described pull bar diagonal brace 7 is provided with described the 6th pulley 12d, the bottom flexibly connects by bearing pin 29 and described second transverse arm 6, the top of described pull bar diagonal brace 7 also connects described first transverse arm 5 by rope 22, as shown in figure 10, the top of pull bar diagonal brace 7 is connected with bearing pin 33, and draw ring is set respectively on the bearing pin, difference connecting rope 22 and rope 21, simultaneously, also flexibly connect pulley 12d on the bearing pin, on the pulley through the winch rope 11 of second winch 10.
Captive joint with an end of described second transverse arm 6 in described tower cap diagonal brace 8 bottoms, the top is by the top of rope 21 cylinder lever connecting rod diagonal braces 7, the top that connects counterbalanced weight diagonal brace 9 by rope 19, middle part by rope 23 described second transverse arms 6, as shown in Figure 9, tower cap diagonal brace 8 tops are connected with bearing pin 34, and draw ring is set respectively on the bearing pin, and each draw ring is connecting strand 21, rope 19 and rope 23 respectively; Captive joint with an end of described second transverse arm 6 in the bottom of described counterbalanced weight diagonal brace 9, its top also connects described turn table 1 by rope 24.
As shown in Figure 6 and Figure 7, the rope 17 of described first winch 13 successively behind the pulley 14b of pulley 14c, the first pulley 14a by second assembly pulley, second assembly pulley, receive the pulley 15b of the pulley 16c of pulley 16a, the 4th assembly pulley of pulley 16c, the 4th assembly pulley of pulley 15a, the 4th assembly pulley of the 3rd assembly pulley and the 3rd assembly pulley and be fixedly attached to dead sheave 18, be used to control the lifting of the folding and body of the tower 4 of body of the tower overcoat 3.
As Fig. 1 and shown in Figure 8, the rope 11 of described second winch 10 passes through the 5th pulley 12a, the 6th pulley 12d, the 7th pulley 12b successively, and captives joint with described transverse arm dead sheave 12c.
The present invention, under delivery state or off position, first transverse arm 5 and second transverse arm 6 of collapsible fast-assembling tower machine are in folded state, and body of the tower 4 is nested in the body of the tower overcoat 3, and tower body and transverse arm be folded state, as shown in Figure 2.
Certainly liter, the stretching process of fast-assembling tower machine: drive first winch 13 that is installed on the turn table 1, batch winch rope 17, tighten up the folding assembly pulley 14 of tower body, the hinge bearing pin 20 that the tower body that folds and transverse arm wraparound are changeed on the spider 25 on the platform 1 rotates, in the rotation process one of them state constantly as shown in Figure 3, first transverse arm 5 of the body of the tower 4 of tower body, body of the tower overcoat 3 and transverse arm and second transverse arm 6 still are folded state in the rotation.Be the upright position to tower body and transverse arm, as shown in Figure 4 after, body of the tower overcoat 3 bottoms and turn table 1 usefulness set pin 27 are fixing, make fast-assembling tower machine be vertical stabilized conditions.Then, clump weight 2 is placed in the end of turn table 1 away from tower body.Continue to drive first winch 13, continue to batch winch rope 17,, tighten up pulley 16a, 16b, the 16c of tower body the 4th assembly pulley, body of the tower 4 is stretched out by the 15a in second assembly pulley.
After body of the tower 4 stretches out certain distance, since the effect of tower body rear portion counterbalanced weight drag- line 24,28 rotations of transverse arm bearing pin, and second transverse arm, 6 pull-ups of transverse arm, rope 21 and rope 23 can be in stretching state simultaneously.Second winch 10 in second transverse arm, 6 pull-ups of transverse arm, unwinding winch rope 11, winch rope 11 hangs over the 6th pulley 12d of pull bar diagonal brace 7 upper ends by volume, walks around the 7th pulley 12b that is fixed on first transverse arm 6, is fixed at last on the dead sheave 12c on first transverse arm 5.In the process of second winch, 10 unwinding winch ropes 11,, help winch rope 11 in the unwinding process, to be in tensioned state more because first transverse arm 5 and second transverse arm 6 of transverse arm self have weight always.Thereby the process that helps unwinding winch rope 11 more makes first transverse arm 5 of transverse arm and second transverse arm 6 be angle less than 180 ° state always.
Transverse arm one of them state in stretching process as shown in Figure 5.Continue to drive second winch 10, be the level of state up to first transverse arm 5 and second transverse arm 6 of transverse arm.Finish fast-assembling tower machine from stretching process, the tower machine enters mode of operation.Though in whole stretching process, adopt bearing pin 30 to connect between first transverse arm 5 and second transverse arm 6,, can make the whole stretching process can wigwag motion owing to the first weighing arm 5 self has weight.
At tower machine mode of operation, because transverse arm self has weight, can make winch rope 11, rope 21, rope 22 and rope 23 are in tensioned state always, the situation of rope bending can not occur.Simultaneously, clump weight 2 is laid at turn table 1 rear portion, makes the tower machine can bevelled trend not arranged forwards and instability because of transverse arm.
Contracting certainly/folding of fast-assembling tower machine operated by the order that the liter/stretching process certainly of above-mentioned tower machine is opposite.
In the tower machine folding process, at first extract the bearing pin 27 that the body of the tower bottom is used for fixing, then in the opposite direction of transverse arm, to the body of the tower applied thrust, because the buffer action of gas spring 26 is arranged, tower body can not fall down to the ground moment, but slowly folding, simultaneously, the opposite sense rotation when launching of first winch and second winch with the tower machine, slowly stretch out and slowly the tightening up of the second winch rope by the rope of controlling first winch, thereby realize the folding of tower machine.
The invention provides a kind of thinking and method of collapsible fast-assembling tower machine; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each component part not clear and definite in the present embodiment is realized.
Claims (9)
1. a collapsible fast-assembling tower machine is characterized in that, comprises turn table (1), liftable tower body, tower body elevating folding mechanism, folding transverse arm and transverse arm fold mechanism;
One end of described tower body and described turn table flexibly connect, and an end of the other end and described transverse arm flexibly connects;
Described tower body elevating folding mechanism connects described turn table and tower body respectively, is used to control the lifting of tower body and folding;
Described transverse arm fold mechanism connects described transverse arm and tower body respectively, is used to control the folding of transverse arm.
2. a kind of collapsible fast-assembling tower machine according to claim 1 is characterized in that described tower body comprises body of the tower (4) and body of the tower overcoat (3), and described body of the tower is positioned at the inner chamber of body of the tower overcoat, and moves along the inner chamber of body of the tower overcoat.
3. a kind of collapsible fast-assembling tower machine according to claim 1 is characterized in that, described tower body elevating folding mechanism comprises first winch (13), tower body folding assembly pulley (14), tower body lifting pulley group (16) and dead sheave (18);
Described tower body folds second assembly pulley that assembly pulley (14) comprises first pulley (14a) that is fixed on the turn table and is fixed on body of the tower overcoat below;
Described tower body lifting pulley group (16) comprises the 3rd assembly pulley (15) that is fixed on body of the tower overcoat top and the 4th assembly pulley (14) that is fixed on the body of the tower below;
The rope of described first winch (17) is by first pulley, second assembly pulley, the 3rd assembly pulley and the 4th assembly pulley and be fixedly attached to dead sheave, is used to control the lifting of the folding and body of the tower of body of the tower overcoat.
4. a kind of collapsible fast-assembling tower machine according to claim 3, it is characterized in that, be fixedly connected with spider (25) on the described turn table (1), the top of described spider (25) and the below of described body of the tower overcoat flexibly connect by bearing pin (20), and described tower body rotates around bearing pin.
5. a kind of collapsible fast-assembling tower machine according to claim 4, it is characterized in that, described spider (25) below is provided with first pin-and-hole (31) that is used to insert set pin, and described body of the tower overcoat below is provided with second pin-and-hole (32) adaptive with the pin-and-hole of described spider.
6. a kind of collapsible fast-assembling tower machine according to claim 2 is characterized in that, comprises gas spring (26), and described gas spring one end and described turn table (1) flexibly connect, and the other end and described body of the tower overcoat (3) flexibly connect.
7. a kind of collapsible fast-assembling tower machine according to claim 2, it is characterized in that, described folding transverse arm comprises first transverse arm (5) and second transverse arm (6), the top of one end of described second transverse arm and described body of the tower (4) flexibly connects, and an end of the other end of described second transverse arm (6) and described first transverse arm (5) flexibly connects.
8. a kind of collapsible fast-assembling tower machine according to claim 7, it is characterized in that described transverse arm fold mechanism comprises pull bar diagonal brace (7), tower cap diagonal brace (8), counterbalanced weight diagonal brace (9), transverse arm assembly pulley and is installed in second winch (10) on second transverse arm (6);
Described transverse arm assembly pulley comprises the 5th pulley (12a), the 6th pulley (12d) that is installed in pull bar diagonal brace top that are installed on second transverse arm, is installed in the 7th pulley (12b) and transverse arm dead sheave (12c) on first transverse arm;
The top of described pull bar diagonal brace (7) is described the 6th pulley (12d), and bottom and described second transverse arm (6) flexibly connect, and the top of described pull bar diagonal brace also connects described first transverse arm (5) by rope;
Captive joint with an end of described second transverse arm (6) in the bottom of described tower cap diagonal brace (8), the top is by top, the top of counterbalanced weight diagonal brace (9) and the middle part of described second transverse arm (6) of rope difference cylinder lever connecting rod diagonal brace (7); Captive joint with an end of described second transverse arm (6) in the bottom of described counterbalanced weight diagonal brace, its top also connects described turn table (1) by rope;
The rope of described second winch (10) is captiveed joint by the 5th pulley (12a), the 6th pulley (12d), the 7th pulley (12b) and with described transverse arm dead sheave (12c) successively.
9. a kind of collapsible fast-assembling tower machine according to claim 1 is characterized in that, the end that described turn table (1) is gone up away from tower body is provided with clump weight (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010508658.5A CN101962156B (en) | 2010-10-18 | 2010-10-18 | Foldable fast-assembling tower crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010508658.5A CN101962156B (en) | 2010-10-18 | 2010-10-18 | Foldable fast-assembling tower crane |
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| CN101962156B CN101962156B (en) | 2012-04-04 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190255A (en) * | 2011-06-15 | 2011-09-21 | 郑州新大方重工科技有限公司 | Crane |
| CN102320526A (en) * | 2011-09-14 | 2012-01-18 | 哈尔滨东建机械制造有限公司 | Self-loading and unloading foldable tower crane |
| CN102344092A (en) * | 2011-09-14 | 2012-02-08 | 哈尔滨东建机械制造有限公司 | Single-rope double-suspension-point horizontal suspension arm retracting and folding mechanism |
| CN102431910A (en) * | 2011-12-12 | 2012-05-02 | 廊坊凯博建设机械科技有限公司 | Arm rack overhead automatic folding and unfolding mechanism of tri-fold arm tower crane and folding and unfolding method thereof |
| CN102642782A (en) * | 2012-05-19 | 2012-08-22 | 南京工业大学 | Tower crane capable of being transported, loaded and unloaded |
| WO2013023347A1 (en) * | 2011-08-12 | 2013-02-21 | 长沙中联重工科技发展股份有限公司 | Foldable boom structure and method for unfolding and folding the foldable boom structure |
| CN103332613A (en) * | 2013-07-11 | 2013-10-02 | 中国建筑科学研究院建筑机械化研究分院 | Automatic folding and unfolding mechanism of folding arm of crane and folding and unfolding method of mechanism |
| CN104973519A (en) * | 2015-06-10 | 2015-10-14 | 南京工业大学 | Tower crane with double lifting arm sections |
| CN105584942A (en) * | 2015-11-24 | 2016-05-18 | 徐州重型机械有限公司 | Crane arm and crane |
| CN106428262A (en) * | 2016-11-08 | 2017-02-22 | 徐州建机工程机械有限公司 | Crane arm and balance arm overall transport device |
| CN113135505A (en) * | 2021-04-26 | 2021-07-20 | 郑州新大方重工科技有限公司 | Truss structure follow-up telescopic system with guide mechanism, crane and guide method |
| ES2910102A1 (en) * | 2020-11-09 | 2022-05-11 | Saez Machinery S L | Automated folding and deployed tower crane (Machine-translation by Google Translate, not legally binding) |
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| DE102012018111A1 (en) * | 2012-09-13 | 2014-03-13 | Liebherr-Werk Biberach Gmbh | Tower Crane |
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| DE4315960A1 (en) * | 1993-05-12 | 1994-11-17 | Liebherr Werk Biberach Gmbh | Crane with telescopic tower |
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| ES2910102A1 (en) * | 2020-11-09 | 2022-05-11 | Saez Machinery S L | Automated folding and deployed tower crane (Machine-translation by Google Translate, not legally binding) |
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