CN201553565U - Low-temperature tower crane - Google Patents
Low-temperature tower crane Download PDFInfo
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- CN201553565U CN201553565U CN2009200998099U CN200920099809U CN201553565U CN 201553565 U CN201553565 U CN 201553565U CN 2009200998099 U CN2009200998099 U CN 2009200998099U CN 200920099809 U CN200920099809 U CN 200920099809U CN 201553565 U CN201553565 U CN 201553565U
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Abstract
The utility model aims at providing a low-temperature tower crane which can normally work under the low temperature environment of minus 40 DEG C. The low-temperature tower crane consists of a tower system, a hoisting system and a balancing system, wherein the tower system is connected with the hoisting system which is connected with the balancing system. The utility model adopts domestic high-quality low alloy steel as the main metal bearing members of the low-temperature tower crane, and the manufacturing materials of a tower top, a crane arm, a balance arm, a rotary tower body, an upper support, a lower support, a jacking sleeve frame, a standard joint and a bottom frame replace the original Q235A materials. The low-temperature tower crane ensures that the main metal bearing members of the tower crane do not generate brittle break of the materials under the lower temperature environment of minus 40 DEG C. The low-temperature tower crane can work normally and safely under the lower temperature environment of minus 40 DEG C, provides safe and reliable large-scale mechanical equipment for winter construction of building engineering, and is widely applied in northern high-cold regions.
Description
(1) technical field
The utility model relates to constructional engineering machinery equipment, is exactly a kind of low temperature tower crane specifically.
(2) background technology
Tower crane has 10 floor height usually approximately, is " very little " font, and an end is used for the handling object, and the other end is then guaranteed balance with huge concrete block, and the centre is a control cabin.Tower crane is fixed on the building center, so that move object to diverse location and height.The hoisting capacity of tower crane changes with amplitude, and the product of hoisting capacity and amplitude is called load moment, and load moment is the main technical details of this hoisting crane.The lifting altitude of tower crane is big, and the inertial mass of revolution and walking is big, so need good speed adjusting performance, that special lifting mechanism requires is can underloading quick, heavy duty at a slow speed, the installation in position fine motion.Generally except that adopting rheostatic speed regulation, also often adopt mode speed governing such as eddy-current brake, frequency modulation, pole-changing, silicon control and electromechanical combination.
Ambient temperature is the important technology index of tower crane.The tower crane that China's design is at present produced can only be worked under-20 ℃～40 ℃ ambient temperatures all by GB9462 " tower crane engineering factor " standard manufacture, if ambient temperature is lower than-20 ℃, can not guarantee its normal trouble free service.
(3) summary of the invention
The purpose of this utility model be to provide a kind of can be under-40 ℃ of low temperature environments the low temperature tower crane of normal trouble free service.
The purpose of this utility model is achieved in that it is made up of pylon system 21, tackling system 22 and balanced system 23, and pylon system 21 connects tackling systems 22, and tackling system 22 connects balanced systems 23.
The utility model also has following technical characterictic:
(1) described pylon system 21 comprises cross bottom girder 20, strut 19, coxopodite 18, body of the tower standard knot 17, jacking stock 16, revolution undersetting 15 and revolution upper bracket 14, cross bottom girder 20 connects strut 19, cross bottom girder 20 connects coxopodite 18, coxopodite 18 connects body of the tower standard knot 17, body of the tower standard knot 17 connects jacking stock 16, jacking stock 16 connects revolution undersetting 15, and revolution undersetting 15 connects revolution upper bracket 14.
(2) described tackling system 22 comprises cat head 6, slewing tower 7, driver's cab 8, crane arm 9, luffing mechanism 10, crane arm pull bar 11, suspension hook 12 and dolly 13, cat head 6 connects slewing tower 7, slewing tower 7 connects driver's cab 8, slewing tower 7 connects crane arm 9, and luffing mechanism 10, crane arm pull bar 11, suspension hook 12 and dolly (13) are set on the crane arm 9.
(3) described driver's cab 8 inside are provided with revolution and luffing electrical control cubicles, 350W temperature booster and 1500W heater unit.
(4) described balanced system 23 comprises forward horizontal stand pouring weight 2, back balance pouring weight 1, lifting mechanism 3, equilibrium arm 4 and balance arm brace 5, forward horizontal stand pouring weight 2 connects back balance pouring weight 1, back balance pouring weight 1 is positioned at the end of equilibrium arm 4, and lifting mechanism 3 and balance arm brace 5 are set on the equilibrium arm 4.
(5) electric cabinet that hoists is set on the described equilibrium arm 4, two 500W temperature boosters, blower fan and temperature regulating device are set in the electric cabinet that hoists.
The utility model low temperature tower crane has following technical characterstic:
1, adopt homemade high-quality low-alloy steel product (its impact absorbing energy AKV under-40 ℃ of low temperature environments should 〉=27J), as the low temperature tower crane major metal stress members manufactured materials of (comprising cat head, crane arm, equilibrium arm, slewing tower, upper and lower bearing, jacking stock, standard knot, underframe), replace original Q235A material.The major metal stress members of guaranteeing the tower machine under-40 ℃ of low temperature environments, the brittle rupture of generating material not.
2, the reduction case of tower crane operating mechanism adopts high-quality low-alloy steel product welded-steel plate construction or QT40-10 ductile cast iron material, replaces with ferrostell, has improved low-temperature flexibility.
3, the used electrical motor of tower machine mechanism has all adopted annular heating tape, the bearing low temperature grease of all having annotated.
4, build the temperature microenvironment that is fit to the electric elements normal operation, solving in ambient temperature is under-40 ℃ of cryogenic conditions, the technical barrier of electric elements normal operation.
5, adopt power cable and the control cable that satisfies-40 degree low temperature operatings needs.
The utility model low temperature tower crane, can be under-40 ℃ of low temperature environments normal trouble free service for the cold weather construction of building engineering provides safe and reliable heavy mechanical equipment, is widely used in northern extremely frigid zones.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model.
(5) specific embodiment
The utility model is described in further detail for example below in conjunction with accompanying drawing.
Embodiment 1, in conjunction with Fig. 1, a kind of low temperature tower crane of the utility model, it is made up of pylon system (21), tackling system (22) and balanced system (23), pylon system (21) connects tackling system (22), and tackling system (22) connects balanced system (23).
The utility model also has following technical characterictic:
Described pylon system (21) comprises cross bottom girder (20), strut (19), coxopodite (18), body of the tower standard knot (17), jacking stock (16), revolution undersetting (15) and revolution upper bracket (14), cross bottom girder (20) connects strut (19), cross bottom girder (20) connects coxopodite (18), coxopodite (18) connects body of the tower standard knot (17), body of the tower standard knot (17) connects jacking stock (16), jacking stock (16) connects revolution undersetting (15), and revolution undersetting (15) connects revolution upper bracket (14).
Described tackling system (22) comprises cat head (6), slewing tower (7), driver's cab (8), crane arm (9), luffing mechanism (10), crane arm pull bar (11), suspension hook (12) and dolly (13), cat head (6) connects slewing tower (7), slewing tower (7) connects driver's cab (8), slewing tower (7) connects crane arm (9), and luffing mechanism (10), crane arm pull bar (11), suspension hook (12) and dolly (13) are set on the crane arm (9).
Described driver's cab (8) inside is provided with revolution and luffing electrical control cubicles, 350W temperature booster and 1500W heater unit.
Described balanced system (23) comprises forward horizontal stand pouring weight (2), back balance pouring weight (1), lifting mechanism (3), equilibrium arm (4) and balance arm brace (5), forward horizontal stand pouring weight (2) connects back balance pouring weight (1), back balance pouring weight (1) is positioned at the end of equilibrium arm (4), and lifting mechanism (3) and balance arm brace (5) are set on the equilibrium arm (4).
Described equilibrium arm (4) go up to be provided with the electric cabinet that hoists, and two 500W temperature boosters, blower fan and temperature regulating device are set in the electric cabinet that hoists.
Embodiment 2, the utility model low temperature tower crane, for eliminating the problem that hardware welds vertical residual-tensile stress (because the synergy of the longitudinal stretching stress of vertical residual-tensile stress of welding and member dead weight load also is to cause member that the important factor in order of brittle rupture takes place at low temperatures), the utility model is taked following technical measures:
(1) design of the main stressed hardware of optimization reduces longitudinal seam as far as possible, from solving in essence and reducing and weld vertical residual-tensile stress.
(2) at material variation and the vertical residual-tensile stress problem of elimination welding, during fabrication, designed new welding process, and selected the low temperature wlding for use, welded.
Embodiment 3, and the utility model low temperature tower crane realizes that the main technical schemes of low-temperature characteristics is as follows:
1, about the selection of the main stressed hardware manufactured materials of low temperature tower crane, mainly be see material itself the impact absorbing energy AKV value under-40 ℃ of low temperature environments whether 〉=27J, to see that also can domestic steel mill provide the various section bars of this material simultaneously.Can select preferentially that grade of steel is Q345E class steel in the GB/T1591-1994 standard, these class steel have marked the impact absorbing energy AKV 〉=27J at-40 ℃, but the section bar specification of this class grade of steel of domestic production is few.Secondly can select Q345B low-alloy refined steel, the section bar specification of this class grade of steel can satisfy main stressed hardware design requirement substantially, but need sampling to do-40 ℃ of impact absorbing energy checks under the low temperature environment, have only impact absorbing energy AKV 〉=27J of-40 ℃, could be as the main stressed hardware manufactured materials of low temperature tower crane.
2, build the temperature microenvironment that is fit to the electric elements normal operation, guarantee that electric elements are the embodiment of normal operation under-40 ℃ of cryogenic conditions in ambient temperature:
1) will turn round and the luffing electrical control cubicles is placed in the driver's cab, because of being provided with 350W temperature booster and a 1500W heater unit in the driver's cab, under cryogenic conditions in the driver's cab Controllable Temperature built in about 16～20 ℃.
2) be installed in the electric cabinet that hoists on the equilibrium arm and increased by 2 500W temperature boosters, blower fan and temperature regulating device guarantee that ambient temperature in the electric cabinet is more than 5 ℃.
Claims (6)
1. low temperature tower crane, it is made up of pylon system (21), tackling system (22) and balanced system (23), it is characterized in that: pylon system (21) connects tackling system (22), and tackling system (22) connects balanced system (23).
2. a kind of low temperature tower crane according to claim 1, it is characterized in that: described pylon system (21) comprises cross bottom girder (20), strut (19), coxopodite (18), body of the tower standard knot (17), jacking stock (16), revolution undersetting (15) and revolution upper bracket (14), cross bottom girder (20) connects strut (19), cross bottom girder (20) connects coxopodite (18), coxopodite (18) connects body of the tower standard knot (17), body of the tower standard knot (17) connects jacking stock (16), jacking stock (16) connects revolution undersetting (15), and revolution undersetting (15) connects revolution upper bracket (14).
3. a kind of low temperature tower crane according to claim 1, it is characterized in that: described tackling system (22) comprises cat head (6), slewing tower (7), driver's cab (8), crane arm (9), luffing mechanism (10), crane arm pull bar (11), suspension hook (12) and dolly (13), cat head (6) connects slewing tower (7), slewing tower (7) connects driver's cab (8), slewing tower (7) connects crane arm (9), and luffing mechanism (10), crane arm pull bar (11), suspension hook (12) and dolly (13) are set on the crane arm (9).
4. a kind of low temperature tower crane according to claim 3 is characterized in that: described driver's cab (8) inside is provided with revolution and luffing electrical control cubicles, 350W temperature booster and 1500W heater unit.
5. a kind of low temperature tower crane according to claim 1, it is characterized in that: described balanced system (23) comprises forward horizontal stand pouring weight (2), back balance pouring weight (1), lifting mechanism (3), equilibrium arm (4) and balance arm brace (5), forward horizontal stand pouring weight (2) connects back balance pouring weight (1), back balance pouring weight (1) is positioned at the end of equilibrium arm (4), and lifting mechanism (3) and balance arm brace (5) are set on the equilibrium arm (4).
6. a kind of low temperature tower crane according to claim 5 is characterized in that: described equilibrium arm (4) go up to be provided with the electric cabinet that hoists, and two 500W temperature boosters, blower fan and temperature regulating device are set in the electric cabinet that hoists.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200998099U CN201553565U (en) | 2009-05-08 | 2009-05-08 | Low-temperature tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200998099U CN201553565U (en) | 2009-05-08 | 2009-05-08 | Low-temperature tower crane |
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| Publication Number | Publication Date |
|---|---|
| CN201553565U true CN201553565U (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200998099U Expired - Lifetime CN201553565U (en) | 2009-05-08 | 2009-05-08 | Low-temperature tower crane |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950842A (en) * | 2014-06-06 | 2014-07-30 | 徐州徐工液压件有限公司 | Electric-hydraulic hybrid tower crane jacking system |
| CN104555753A (en) * | 2014-12-26 | 2015-04-29 | 江苏振东港口机械制造有限公司 | Multifunctional fixed crane |
| CN105293300A (en) * | 2015-11-25 | 2016-02-03 | 镇海建设集团有限公司 | Tower crane capable of quickly disassembling and assembling counterweight block |
| CN107128820A (en) * | 2017-06-16 | 2017-09-05 | 无锡石油化工起重机有限公司 | The derrick crane of built-in warming stove |
| CN108025897A (en) * | 2015-07-06 | 2018-05-11 | 利勃海尔工厂比伯拉赫股份有限公司 | A kind of derrick crane |
| CN110203811A (en) * | 2019-05-16 | 2019-09-06 | 深圳市奈士迪技术研发有限公司 | A kind of safety-type hanging device with Anti-freezing function for construction |
-
2009
- 2009-05-08 CN CN2009200998099U patent/CN201553565U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950842A (en) * | 2014-06-06 | 2014-07-30 | 徐州徐工液压件有限公司 | Electric-hydraulic hybrid tower crane jacking system |
| CN103950842B (en) * | 2014-06-06 | 2016-04-27 | 徐州徐工液压件有限公司 | A kind of tower machine jack-up system of electrohydraulic mixed power |
| CN104555753A (en) * | 2014-12-26 | 2015-04-29 | 江苏振东港口机械制造有限公司 | Multifunctional fixed crane |
| CN104555753B (en) * | 2014-12-26 | 2017-06-13 | 江苏振东港口机械制造有限公司 | A kind of multi-functional fixed crane |
| CN108025897A (en) * | 2015-07-06 | 2018-05-11 | 利勃海尔工厂比伯拉赫股份有限公司 | A kind of derrick crane |
| CN108025897B (en) * | 2015-07-06 | 2020-09-29 | 利勃海尔工厂比伯拉赫股份有限公司 | Tower crane |
| CN105293300A (en) * | 2015-11-25 | 2016-02-03 | 镇海建设集团有限公司 | Tower crane capable of quickly disassembling and assembling counterweight block |
| CN107128820A (en) * | 2017-06-16 | 2017-09-05 | 无锡石油化工起重机有限公司 | The derrick crane of built-in warming stove |
| CN110203811A (en) * | 2019-05-16 | 2019-09-06 | 深圳市奈士迪技术研发有限公司 | A kind of safety-type hanging device with Anti-freezing function for construction |
| CN110203811B (en) * | 2019-05-16 | 2020-08-07 | 浙江省东阳第三建筑工程有限公司 | A safe type lifting device for building construction has anti-freezing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100818 |