CN201567163U - Tower crane - Google Patents

Tower crane Download PDF

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Publication number
CN201567163U
CN201567163U CN200920299595XU CN200920299595U CN201567163U CN 201567163 U CN201567163 U CN 201567163U CN 200920299595X U CN200920299595X U CN 200920299595XU CN 200920299595 U CN200920299595 U CN 200920299595U CN 201567163 U CN201567163 U CN 201567163U
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CN
China
Prior art keywords
tower
arm
crane
drag
auxiliary
Prior art date
Application number
CN200920299595XU
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Chinese (zh)
Inventor
陈金根
Original Assignee
安徽顺达电力设备制造有限公司
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Publication date
Application filed by 安徽顺达电力设备制造有限公司 filed Critical 安徽顺达电力设备制造有限公司
Priority to CN200920299595XU priority Critical patent/CN201567163U/en
Application granted granted Critical
Publication of CN201567163U publication Critical patent/CN201567163U/en

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Abstract

The utility model relates to a self elevating folded arm tower crane suitable for the construction of a cooling tower in a fossil-fuel power plant, which belongs to the technical field of tower crane. The tower crane comprises a tower body, the lift arm arranged on the upper side of the tower body is folded arm type, and a derricking gear for connecting the lift arm with a balance arm is arranged at the top of the tower body. According to the technical scheme, because the lift arm of the tower crane is folded arm type, the tower crane can be conveniently used for performing construction in a hyperbolic cooling tower, and the arm of the tower crane can be folded and demolished from the throat of the tower after completion of construction. Accordingly, the tower crane has the advantages of easy construction, convenient demolishment, high construction efficiency and good safety performance.

Description

Tower crane
Technical field
The utility model belongs to the tower crane technical field, is specifically related to a kind of folding arm self-raising tower crane that is applicable to thermal power plant's cooling tower construction.
Background technology
Along with the appearance of the macro policy of national energy-saving and emission-reduction and environmental protection, domestic thermal power generating equipment is also developed to big unit by little unit rapidly, and the 1000MW unit has become present main force unit, and cooling column is also from 6000m simultaneously 2Develop into 13000m 2, and the exterior contour of cooling column is hyperbola, also is that the diameter of the top of cooling column and bottom is big, middle diameter is little, therefore makes original lifting equipment can not adapt to the needs of construction, needs improvement badly.
Summary of the invention
The purpose of this utility model provides a kind of tower crane, and it can satisfy the construction requirement of hyperbola cooling column, and operating efficiency height and safety performance are good.
For achieving the above object, the utility model has adopted following technical scheme: a kind of tower crane, comprise body of the tower, and the crane arm that is arranged on the body of the tower upside is a folding-jib, the top of body of the tower is provided with the luffing mechanism that connects crane arm and equilibrium arm.
As shown from the above technical solution, because crane arm of the present utility model is set to folding-jib, so it can launch construction easily in the hyperbola cooling column, simultaneously after construction finishes, but tower machine folding arm and by the dismounting of water tower throat again.From the above, the utility model is easy to construction and is convenient to remove, and operating efficiency height and safety performance are good.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation behind the utility model folding arm;
Fig. 3 is the structural representation at body of the tower of the present utility model top.
The specific embodiment
As shown in Figure 1, 2, a kind of tower crane comprises body of the tower 10, and the crane arm 20 that is arranged on body of the tower 10 upsides is folding-jib, and the top of body of the tower 10 is provided with the luffing mechanism that connects crane arm 20 and equilibrium arm 30.
Can get by diagram, because the crane arm 20 of this tower crane is a folding-jib, also be because the crane arm 20 of this tower crane can bend when construction, therefore this tower crane very is applicable to the construction of hyperbola cooling column, when construction during on the bottom of cooling column and top, because the diameter of cooling column body of the tower is bigger, so the bending degree of crane arm 20 is less; When the middle part of construction at cooling column, because the diameter of cooling column body of the tower is less, so the bending degree of crane arm 20 is bigger.From the above, this tower crane speed of application is fast, and the construction quality height.
As preferred version of the present utility model, as shown in Figure 3, described crane arm 20 comprises mutually hinged principal arm 21 and auxiliary 22, is provided with drag-line support 23 between principal arm 21 and the auxiliary 22, one end of drag-line support 23 is coaxial hinged with principal arm 21 and auxiliary 22, and the other end is provided with pulley;
One end of the principal arm drag-line 211 in the luffing mechanism is fixed on the principal arm 21, and the other end is walked around bracing frame 50 pulleys that are arranged on body of the tower 10 tops and linked to each other with equilibrium arm 30;
One end of the first auxiliary drag-line 221 is fixed on the auxiliary 22, other end solderless wrapped connection is at the pulley place near drag-line support 23 ends, one end winding of the second auxiliary drag-line 222 is at the pulley place of drag-line support 23 ends, and the other end is walked around bracing frame 50 pulleys that are arranged on body of the tower 10 tops and linked to each other with equilibrium arm 30;
Described principal arm drag-line 211 cooperatively interacts with auxiliary drag-line 221, makes principal arm 21 when luffing, and auxiliary 22 is in horizontality all the time.
When construction needs luffing, starter motor makes the luffing mechanism action, the luffing mechanism operation is upwards steeved principal arm 21, the first auxiliary drag-line 221 and the second auxiliary drag-line 222 match and make auxiliary 22 be in horizontality all the time simultaneously, thereby the folding arm of having realized crane arm 20 changes, and described luffing mechanism can be with reference to prior art.
The cross-sectional plane of described crane arm 20 is an equilateral triangle, and the top boom of crane arm 20 is set to solid drawn pipe, and lower boom is set to rectangular steel plates, the track of described rectangular steel plates double as crane carriage level run.
The length ratio of described principal arm 21 and auxiliary 22 is 3: 2~1: 1.
Principal arm 21 length are 29m, are divided into three joints; Auxiliary 22 length are divided into three kinds of 20m, 25m, 30m, and each internode of forearm connects by bearing pin and can exchange assembling.
Described principal arm 21 is 0~90 ° with horizontal angle amplitude, is preferably 15~75 °, is specially adapted to the construction of special tower buildings such as cooling tower, television mast, and is convenient to dismounting.
The lattice purlin structure of described drag-line support 23 for being welded by solid drawn pipe, structural strength height and bearing capacity are big.
Described bracing frame 50 is set to a shaped steel frame, and the top of the bottom of bracing frame 50 and body of the tower 10 is hinged, and the upper end is provided with the luffing assembly pulley, also is provided with the strut 40 that is connected the two between described bracing frame 50 and the equilibrium arm 30.The mobile jib transversal surface of described door shaped steel frame is the I-shaped shape, and described strut 40 is convenient to the bracing frame installation in position.
As another kind of preferred version of the present utility model, the both sides of described body of the tower 10 are provided with several layers cable wind rope 60 from bottom to top.
As shown in Figure 1, 2, the cable wind rope 60 on the described body of the tower 10 is set to 4 layers, and the interlamellar spacing between the cable wind rope 60 reduces from bottom to top gradually.
Described body of the tower 10 is made up of base, base section, standard knot, anchoring joint, be axis tile between each component part of body of the tower 10 and connect, the height ratio that position be set of from bottom to top each layer cable wind rope 60 on body of the tower 10 is 1: 1.6: 2.1: 2.6~1: 1.6: 2.2: 2.8.
With Fig. 1 is example, for reducing the body of the tower calculated length to guarantee the design load-carrying ability, is provided with four layers of cable wind rope altogether, and ground floor is apart from basic plane 48.8m, and the second layer is apart from basic plane 78.7m, and the 3rd layer apart from basic plane 105m, and the 4th layer apart from basic plane 131.2m.Concrete body of the tower consists of: base+base section+10 standard knot++ 7 standard knots of anchoring joint++ 6 standard knots of anchoring joint++ 6 standard knots of anchoring joint++ 5 standard knots of anchoring joint.
After adopting above-mentioned technology, this tower crane have maximum height of lift from 162m increase to 184m, lifting amplitude 59m, maximum lifting velocity by 50 meters/minute bring up to 75 meters/minute, folding arm angle from 0 ° to 90 °, cable wind rope is to connect characteristics such as adopting the connection of axis tile formula 4 layers, 8 tons of the biggest lifting capacities, standard knot, can obviously reduce workman's operation labour intensity, adapt to 13000m 2The above construction of hyperbola cooling column 30m elevation needs, and has great economic benefit and social benefit.
Simultaneously, this folding arm self-raising tower crane equipment can be retrofited according to need of work and execution conditions, and its basical traditional model is that fixed base steel rope adherence ground or level are adhered to water tower wall mode.By changing and increasing and decreasing some parts or auxiliary devices in addition, can be modified as independent stationary formula hoisting crane, or be attached to the outside adhesion type hoisting crane of building with rigid mount, also can change into walking in orbit locomotive crane.

Claims (10)

1. a tower crane comprises body of the tower (10), it is characterized in that: the crane arm (20) that is arranged on body of the tower (10) upside is a folding-jib, and the top of body of the tower (10) is provided with the luffing mechanism that connects crane arm (20) and equilibrium arm (30).
2. tower crane according to claim 1, it is characterized in that: described crane arm (20) comprises mutually hinged principal arm (21) and auxiliary (22), be provided with drag-line support (23) between principal arm (21) and the auxiliary (22), one end of drag-line support (23) is coaxial hinged with principal arm (21) and auxiliary (22), and the other end is provided with pulley;
One end of the principal arm drag-line (211) in the luffing mechanism is fixed on the principal arm (21), and the other end is walked around bracing frame (50) pulley that is arranged on body of the tower (10) top and linked to each other with equilibrium arm (30);
One end of the first auxiliary drag-line (221) is fixed on the auxiliary (22), other end solderless wrapped connection is at the pulley place near drag-line support (23) end, one end winding of the second auxiliary drag-line (222) is at the pulley place of drag-line support (23) end, and the other end is walked around bracing frame (50) pulley that is arranged on body of the tower (10) top and linked to each other with equilibrium arm (30);
Described principal arm drag-line (211) cooperatively interacts with auxiliary drag-line (221), makes principal arm (21) when luffing, and auxiliary (22) is in horizontality all the time.
3. tower crane according to claim 1 and 2 is characterized in that: the both sides of described body of the tower (10) are provided with several layers cable wind rope (60) from bottom to top.
4. tower crane according to claim 1 and 2 is characterized in that: the cross-sectional plane of described crane arm (20) is an equilateral triangle, and the top boom of crane arm (20) is set to solid drawn pipe, and lower boom is set to rectangular steel plates.
5. tower crane according to claim 2 is characterized in that: the length ratio of described principal arm (21) and auxiliary (22) is 3: 2~1: 1.
6. tower crane according to claim 2 is characterized in that: described principal arm (21) is 0~90 degree with horizontal angle amplitude.
7. tower crane according to claim 2 is characterized in that: the lattice purlin structure of described drag-line support (23) for being welded by solid drawn pipe.
8. tower crane according to claim 2, it is characterized in that: described bracing frame (50) is set to a shaped steel frame, the top of the bottom of bracing frame (50) and body of the tower (10) is hinged, the upper end is provided with the luffing assembly pulley, also is provided with the strut (40) that is connected the two between described bracing frame (50) and the equilibrium arm (30).
9. tower crane according to claim 3 is characterized in that: the cable wind rope (60) on the described body of the tower (10) is set to 4 layers, and the interlamellar spacing between the cable wind rope (60) reduces from bottom to top gradually.
10. tower crane according to claim 9, it is characterized in that: described body of the tower (10) is made up of base, base section, standard knot, anchoring joint, be axis tile between each component part of body of the tower (10) and connect, the height ratio that position be set of from bottom to top each layer cable wind rope (60) on body of the tower (10) is 1: 1.6: 2.1: 2.6~1: 1.6: 2.2: 2.8.
CN200920299595XU 2009-12-25 2009-12-25 Tower crane CN201567163U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920299595XU CN201567163U (en) 2009-12-25 2009-12-25 Tower crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920299595XU CN201567163U (en) 2009-12-25 2009-12-25 Tower crane

Publications (1)

Publication Number Publication Date
CN201567163U true CN201567163U (en) 2010-09-01

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CN200920299595XU CN201567163U (en) 2009-12-25 2009-12-25 Tower crane

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001590A (en) * 2010-12-03 2011-04-06 徐州重型机械有限公司 Wheeled crane and luffing jib thereof
CN102358579A (en) * 2011-09-14 2012-02-22 哈尔滨东建机械制造有限公司 Base-tower combined mechanism of tower crane
CN102358581A (en) * 2011-09-14 2012-02-22 哈尔滨东建机械制造有限公司 Single-rope three-section type horizontal suspension arm folding buffering and self-locking device
CN102942124A (en) * 2012-11-15 2013-02-27 中联重科股份有限公司 Tower crane
CN108100872A (en) * 2017-10-14 2018-06-01 乐清日盛建设有限公司 A kind of mechanical hoisting device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001590A (en) * 2010-12-03 2011-04-06 徐州重型机械有限公司 Wheeled crane and luffing jib thereof
CN102358579A (en) * 2011-09-14 2012-02-22 哈尔滨东建机械制造有限公司 Base-tower combined mechanism of tower crane
CN102358581A (en) * 2011-09-14 2012-02-22 哈尔滨东建机械制造有限公司 Single-rope three-section type horizontal suspension arm folding buffering and self-locking device
CN102942124A (en) * 2012-11-15 2013-02-27 中联重科股份有限公司 Tower crane
CN102942124B (en) * 2012-11-15 2015-02-11 中联重科股份有限公司 Tower crane
CN108100872A (en) * 2017-10-14 2018-06-01 乐清日盛建设有限公司 A kind of mechanical hoisting device

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Granted publication date: 20100901

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