CN104261278B - Bipod mast lifting system with flexible guide rail and hanging method - Google Patents
Bipod mast lifting system with flexible guide rail and hanging method Download PDFInfo
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- CN104261278B CN104261278B CN201410545515.XA CN201410545515A CN104261278B CN 104261278 B CN104261278 B CN 104261278B CN 201410545515 A CN201410545515 A CN 201410545515A CN 104261278 B CN104261278 B CN 104261278B
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- Prior art keywords
- flexible guide
- guide rail
- load
- flexible
- crossbeam
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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
- B66C23/62—Constructional features or details
Abstract
The bipod mast lifting system of a kind of band flexible guide rail, including operation at top platform, bipod mast, luffing tackle pulley, fall block group and hoist engine；Also include leading arm, guide crossbeam and two flexible guide rails；Described leading arm is fixed on the top of bipod mast；The right and left of leading arm is arranged with many group flexible guide rail junction points；Described guiding crossbeam is fixed in load；Guide crossbeam two ends and be provided with the mechanism being connected with flexible guide rail；At the flexible guide rail junction point that the top of two flexible guide rails is separately fixed on leading arm, end is connected to bottom job platform；Guide crossbeam to be connected with flexible guide rail by the mechanism being connected with flexible guide rail；Guide crossbeam to move up and down along two flexible guide rails；The distance between two and two flexible guide rail junction points on the distance of the bindiny mechanism of flexible guide rail and leading arm on the centre-to-centre spacing of two flexible guide rails, guiding crossbeam is identical；Keeping parallelism between two flexible guide rails；Flexible guide rail end is provided with pre-tightening force adjusting device.
Description
Technical field
The present invention relates to industrial equipment installing area, a kind of bipod mast utilizing band flexible guide rail lifts
System (hereinafter referred to as system) and employing body series carry out the construction method lifted.The present invention is applicable to load
Superelevation vertical transport, being particularly suited for crane in narrow and small place cannot the occasion of operation.
Background technology
Load superelevation vertical transport has two kinds of common methods: one is to utilize crane (derrick crane, flow-type
Crane etc.) carry out lifting operation；Two is to utilize mast to carry out lifting operation.Utilize crane (tower lifting
Machine, runabout crane etc.) carry out lifting operation, it is adaptable to and place, job site is relatively big, the feelings that load is less
Condition.Utilize mast to carry out lifting operation, be particularly well-suited to narrow and small place.
Existing bipod mast is divided into steel pipe bipod mast, two kinds of versions of lattice bipod mast.According to scene
Needs can overall field fabrication, or be fabricated to standard knot, Assembling.When superelevation vertical transport, it is necessary to
Overcome the Cross Wind Force of horizontal direction, keep load vertical lift.Lateral blast drastically increases with the change of height
Add.Such as certain model handpiece Water Chilling Units deadweight 11.77t, overall dimensions (L × B × H) is 4811 × 2055 × 2190,
Cross Wind Force at hinterland Near Ground is 1253.8N, and the Cross Wind Force when 110m is 2532.7N,
Lateral displacement is the biggest.So, when superelevation vertical transport, it is necessary to overcome the Cross Wind Force of horizontal direction, keep
Load vertical lift.Cross Wind Force changes with the change of height.
Existing bipod mast hoisting typically uses cable wind rope to stay tail, arrange the methods such as interim guide rope and lead
To, the ability overcoming Cross Wind Force to affect is poor.When cable wind rope stays tail, it is desirable to have broad place could realize
(cable wind rope must keep certain angle with equipment traffic direction), and by operator's experience, observing effect etc.
Impact is relatively big, and vertical height is the highest, and effect is the poorest.When arranging interim guide rope, the pretightning force of guide rope is more difficult
Controlling, load lateral displacement amount cannot be grasped；After load transport puts in place, air breakup to be realized with guide rope,
Operating difficulties.
Summary of the invention
For solving the above-mentioned problems in the prior art, the present invention is from practical, operability, design band
Leading arm bipod mast, constitutes the bipod mast lifting system with flexible guiding track, and utilizes system to carry out
Lifting operation, completes load superelevation vertical transport.Technical scheme is as follows:
The bipod mast lifting system of a kind of band flexible guide rail, including operation at top platform, bipod mast, luffing
Tackle pulley, fall block group and hoist engine；
The base of described bipod mast is fixed on operation at top platform by rotating mechanism；Described hoist engine includes
Two groups, it is respectively used to the lift winch of lifting and for the luffing hoist engine of luffing；Luffing tackle pulley is located at people
The top of word mast；Luffing tackle pulley constitutes jib lubbing mechanism with corner block, luffing hoist engine, it is achieved bipod mast
Bar luffing；Fall block group is located at the top of bipod mast, fall block group and corner block, lift winch
Constitute elevating mechanism；Load is connected below the fly block of fall block group；The race rope of fall block group is by turning to
Coaster is connected to lift winch；
Also include leading arm, guide crossbeam and two flexible guide rails；Described leading arm is fixed on the top of bipod mast
Portion；The right and left of leading arm is arranged with many group flexible guide rail junction points；Described guiding crossbeam is fixed on load
On；Guide crossbeam two ends and be provided with the mechanism being connected with flexible guide rail；The top of two flexible guide rails is separately fixed at
At flexible guide rail junction point on leading arm, end is connected to bottom job platform；Guide crossbeam by with
The mechanism that flexible guide rail connects is connected with flexible guide rail；Guide crossbeam to move up and down along two flexible guide rails；Two
The centre-to-centre spacing of flexible guide rail, the distance of two guided on crossbeam and the bindiny mechanism of flexible guide rail and guiding
The distance between two flexible guide rail junction points on arm is identical；Keeping parallelism between two flexible guide rails；Flexibility is led
Rail end is provided with pre-tightening force adjusting device.
The mechanism being connected with flexible guide rail on described guiding crossbeam is to unload gram, flexible guide rail cavity from unload gram
Inside pass；Or, the structure being connected with flexible guide rail on described guiding crossbeam includes paired two sheave；
Flexible guide rail passes in the cavity that the outer rim of two sheaves surrounds.
Described flexible guide rail is steel wire rope.Described pre-tightening force adjusting device can realize the pretightning force of steel wire rope and adjust,
And as required flexible rail departed from bottom job platform or be connected.In prior art, such device can
Selection kind is more, the technical program to this without other particular/special requirement.
The using method of this lifting system, step is as follows:
1) design and the selection of system are lifted；
2) calculating of flexible rail pretightning force；
3) at operation at top platform (such as roof or operation floor etc.), bipod mast is installed；
4) flexible rail is transferred to bottom job platform (ground as by lifting load place), operates pretension
Device, to setting pretightning force, constitutes guide rail；
5) lifting block group is transferred to precalculated position above load；Load is connected in lifting block group；
The two ends being directed to crossbeam are connected on flexible guiding track；Starting lift winch, load is along flexible guiding rail
Road vertical ascent, to predetermined altitude；
6) release pre-tightening apparatus, unclamp flexible guiding track, start luffing hoist engine and make bipod mast luffing,
Load is lifted into precalculated position；
Described step 2) in, carry out calculating according to the wind friction velocity of load weight, job site and determine in system
Parameter；Parameter includes:
Wind load W1: W1=C × Kh×p×A
In formula:
C-----wind factor, load aloft time, take C=1.20；
Kh-----height variation coefficient of wind pressure, it is chosen and is shown in Table 1；
P-----wind load (overhead at 10m), under moderate gale power, coastal area takes p=112N/m2, interior
Land district takes p=119N/m2；
A----load is perpendicular to the entity front face area of wind direction, and unit is m2；
Table 1 height variation coefficient of wind pressure Kh
Load is by Action of Wind pressure, during horizontal displacement, deviation of gravity center.According to equalising torque principle, calculate gravity and draw
The horizontal force risen.
The horizontal force W that gravity causes2: W2×(L-L1)=G × l
The horizontal force W:W=W that load bears1-W2
The flexible guide rail pulling force that load eccentricity causes is:
N1× sin α=N2×sinβ
N1×cosα+N2× cos β=W
Flexible guide rail minimum pretightning force N:N=N=max{N1, N2}
In formula: N1Flexible guide rail pulling force (more than loading position), unit is N；
N2Flexible guide rail pulling force (below loading position), unit is N；
The horizontal force that W load bears, unit is N；
Gravity suffered by G load, unit is N；
L bipod mast leading arm and the distance of bottom job platform, unit is m；
L1Load and the distance of bottom job platform, unit is m；
L load allows the distance of skew, and according to field condition, the range of choice is 0.1～0.2m；
α flexible guide rail (more than loading position) and horizontal plane angle,Single
Position be °；
β flexible guide rail (below loading position) and horizontal plane angle,Unit is
°。
The principle of this lifting system is as follows:
It it is the leading arm adding level on the basis of bipod mast with leading arm bipod mast；According to load
Width, arranges guide rope fixing device at leading arm correct position.Steel wire rope, pre-tightening apparatus etc. is utilized to fix
Hanger, guide rope fixing device couple together, and reach the pretightning force of design, form flexible guiding track.Utilize
Carrying with the lifting block group on leading arm bipod mast, load rises along flexible guiding track, thus realizes hanging
Pretend industry.
Accompanying drawing explanation
Fig. 1 is that the bipod mast lifting system implementation with flexible guiding track illustrates intention.
The bipod mast schematic diagram of Fig. 2 band leading arm.
Fig. 3-1 and 3-2 determines that the force analysis figure of pretightning force.
In figure, operation at top platform 1, bipod mast 2, hoist engine 3, load 4, leading arm 5, guiding horizontal stroke
Beam 6, flexible guide rail 7, flexible guide rail junction point 8, fall block group 9, the hanger on job platform surface, bottom
10, pre-tightening force adjusting device 11.
Detailed description of the invention
With detailed description of the invention, this lifting system is described as follows below in conjunction with the accompanying drawings:
Such as Fig. 1, the bipod mast lifting system of a kind of band flexible guide rail, including operation at top platform, bipod mast
Bar, luffing tackle pulley, fall block group and hoist engine；The base of described bipod mast is fixed by rotating mechanism
On operation at top platform；Described hoist engine includes two groups, is respectively used to the lift winch of lifting and for becoming
The luffing hoist engine of width；Luffing tackle pulley is located at the top of bipod mast；Luffing tackle pulley and corner block, change
Width hoist engine constitutes jib lubbing mechanism, it is achieved bipod mast luffing；Fall block group is located at the top of bipod mast,
Fall block group constitutes elevating mechanism with corner block, lift winch；Connect below the fly block of fall block group
Carry lotus；The race rope of fall block group is connected to lift winch by corner block；
Also include leading arm, guide crossbeam and two flexible guide rails；
Described leading arm is fixed on the top of bipod mast；The right and left of leading arm is arranged with many group flexibilities and leads
Rail junction point (apparent load length selects to use)；Described guiding crossbeam is fixed in load；Guide crossbeam two ends
It is provided with the mechanism being connected with flexible guide rail；The flexibility that the top of two flexible guide rails is separately fixed on leading arm is led
At rail junction point, end is connected to bottom job platform (can be by being connected to job platform surface, bottom
Hanger connect)；Guide crossbeam to be connected with flexible guide rail by the mechanism being connected with flexible guide rail；Guide crossbeam
Move up and down along two flexible guide rails；Lead with flexibility for two on the centre-to-centre spacing of two flexible guide rails, guiding crossbeam
The spacing between two flexible guide rail junction points in the spacing of the bindiny mechanism of rail and leading arm is identical；Two
Keeping parallelism between root flexible guide rail；Flexible guide rail end is provided with pre-tightening force adjusting device.Described pretightning force regulation dress
Put and can realize pretightning force adjustment, and as required flexible rail departed from fixing hanger and be connected.
The mechanism being connected with flexible guide rail on described guiding crossbeam is to unload gram, flexible guide rail cavity from unload gram
Inside pass；Or, the structure being connected with flexible guide rail on described guiding crossbeam includes paired two sheave；
Flexible guide rail passes in the cavity that the outer rim of two sheaves surrounds.
Time specifically used, the flexible guide rail junction point on described leading arm has paired many groups, it is adaptable to different
The guiding crossbeam (equipment) of length；For the concrete condition of each institute hanging device, soft on selective guide arm
Property guide rail junction point spacing, flexible rail centre-to-centre spacing, fixing hanging of guiding on crossbeam length, bottom job platform
Ear space, it is ensured that two flexible rails are parallel；The flexible guide rail junction point that fixing hanger is positioned on leading arm just under
Side, it is ensured that flexible guide rail vertical.Described flexible guide rail is steel wire rope.
The using method of this lifting system, step is as follows:
1) design and the selection of system are lifted；
2) calculating of flexible rail pretightning force:
3) at operation at top platform (such as roof or operation floor etc.), bipod mast is installed；
4) flexible rail is transferred to bottom job platform (ground as by lifting load place), operates pretension
Device, to setting pretightning force, constitutes guide rail；
5) lifting block group is transferred to precalculated position above load；Load is connected in lifting block group；
The two ends being directed to crossbeam are connected on flexible guiding track；Starting lift winch, load is along flexible guiding rail
Road vertical ascent, to predetermined altitude；
6) release pre-tightening apparatus, unclamp flexible guiding track, start luffing hoist engine and make bipod mast luffing,
Load is lifted into precalculated position；
Described step 2) in, carry out calculating according to the wind friction velocity of load weight, job site and determine in system
Parameter；Parameter includes:
Wind load W1: W1=C × Kh×p×A
In formula:
C-----wind factor, load aloft time, take C=1.20；
Kh-----height variation coefficient of wind pressure, it is chosen and is shown in Table 1；
P-----wind load (overhead at 10m), under moderate gale power, coastal area takes p=112N/m2, interior
Land district takes p=119N/m2；
A----load is perpendicular to the entity front face area of wind direction, and unit is m2；
Table 1 height variation coefficient of wind pressure Kh
Load is by Action of Wind pressure, during horizontal displacement, deviation of gravity center.According to equalising torque principle, calculate gravity and draw
The horizontal force risen.
The horizontal force W that gravity causes2: W2×(L-L1)=G × l
The horizontal force W:W=W that load bears1-W2
The flexible guide rail pulling force that load eccentricity causes is:
N1× sin α=N2×sinβ
N1×cosα+N2× cos β=W
Flexible guide rail minimum pretightning force N:N=N=max{N1, N2}
In formula: N1Flexible guide rail pulling force (more than loading position), unit is N；
N2Flexible guide rail pulling force (below loading position), unit is N；
The horizontal force that W load bears, unit is N；
Gravity suffered by G load, unit is N；
L bipod mast leading arm and the distance of bottom job platform, unit is m；
L1Load and the distance of bottom job platform, unit is m；
L load allows the distance of skew, and according to field condition, the range of choice is 0.1～0.2m；
α flexible guide rail (more than loading position) and horizontal plane angle,Single
Position be °；
β flexible guide rail (below loading position) and horizontal plane angle,Unit is
°。
Claims (4)
1. a hanging method for the bipod mast lifting system of band flexible guide rail, is characterized in that step is as follows:
1) design and the selection of system are lifted；
2) calculating of flexible rail pretightning force；
3) at operation at top stage+module bipod mast；
4) flexible rail is transferred to bottom job platform, and operation pre-tightening apparatus is to setting pretightning force, and composition is led
To track；
5) lifting block group is transferred to precalculated position above load；Load is connected in lifting block group；
The two ends being directed to crossbeam are connected on flexible guiding track；Starting lift winch, load is along flexible guiding rail
Road vertical ascent, to predetermined altitude；
6) release pre-tightening apparatus, unclamp flexible guiding track, start luffing hoist engine and make bipod mast luffing,
Load is lifted into precalculated position；
Described step 2) in, carry out calculating according to the wind friction velocity of load weight, job site and determine in system
Parameter；Parameter includes:
Wind load W1: W1=C × Kh×p×A
In formula:
C-----wind factor, load aloft time, take C=1.20；
Kh------height variation coefficient of wind pressure, it is chosen and is shown in Table 1；
P-----wind load, overhead at 10m, under moderate gale power, coastal area takes p=112N/m2, interior
Land district takes p=119N/m2；
A----load is perpendicular to the entity front face area of wind direction, and unit is m2；
Table 1 height variation coefficient of wind pressure Kh
Load is by Action of Wind pressure, during horizontal displacement, deviation of gravity center；According to equalising torque principle, calculate gravity and draw
The horizontal force risen；
The horizontal force W that gravity causes2: W2×(L-L1)=G × l
The horizontal force W:W=W that load bears1-W2
The flexible guide rail pulling force that load eccentricity causes is:
N1× sin α=N2×sinβ
N1×cosα+N2× cos β=W
Flexible guide rail minimum pretightning force N:N=N=max{N1, N2}
In formula: N1Flexible guide rail pulling force more than loading position, unit is N；
N2Flexible guide rail pulling force below loading position, unit is N；
The horizontal force that W load bears, unit is N；
Gravity suffered by G load, unit is N；
L bipod mast leading arm and the distance of bottom job platform, unit is m；
L1Load and the distance of bottom job platform, unit is m；
L load allows the distance of skew, and according to field condition, the range of choice is 0.1～0.2m；
α flexible guide rail more than loading position and horizontal plane angle,Unit is °；
Flexible guide rail below β loading position and horizontal plane angle,Unit is °.
The hanging method of the bipod mast lifting system of band flexible guide rail the most according to claim 1, its
Feature is that the bipod mast lifting system of band flexible guide rail includes operation at top platform, bipod mast, luffing coaster
Group, fall block group and hoist engine；
The base of described bipod mast is fixed on operation at top platform by rotating mechanism；Described hoist engine includes
Two groups, it is respectively used to the lift winch of lifting and for the luffing hoist engine of luffing；
Luffing tackle pulley is located at the top of bipod mast；Luffing tackle pulley is constituted with corner block, luffing hoist engine
Jib lubbing mechanism, it is achieved bipod mast luffing；
Fall block group is located at the top of bipod mast, and fall block group is constituted with corner block, lift winch
Elevating mechanism；Load is connected below the fly block of fall block group；The race rope of fall block group passes through corner block
It is connected to lift winch；
Also include leading arm, guide crossbeam and two flexible guide rails；
Described leading arm is fixed on the top of bipod mast；The right and left of leading arm is arranged with many group flexibilities and leads
Rail junction point；
Described guiding crossbeam is fixed in load；Guide crossbeam two ends and be provided with the mechanism being connected with flexible guide rail；
At the flexible guide rail junction point that the top of two flexible guide rails is separately fixed on leading arm, end connects respectively
It is connected on bottom job platform；Guide crossbeam to be connected with flexible guide rail by the mechanism being connected with flexible guide rail；Guide
Crossbeam moves up and down along two flexible guide rails；
The centre-to-centre spacing of two flexible guide rails, the distance of two guided on crossbeam and the bindiny mechanism of flexible guide rail,
And distance between two flexible guide rail junction points on leading arm is identical；Keep flat between two flexible guide rails
OK；
Flexible guide rail end is provided with pre-tightening force adjusting device.
The hanging method of the bipod mast lifting system of band flexible guide rail the most according to claim 2, its
Feature be the mechanism being connected with flexible guide rail on described guiding crossbeam be to unload gram, flexible guide rail sky from unload gram
Intracavity passes；
Or, the structure being connected with flexible guide rail on described guiding crossbeam includes paired two sheave；Soft
Property guide rail passes in the cavity that the outer rim of two sheaves surrounds.
The hanging method of the bipod mast lifting system of band flexible guide rail the most according to claim 2, its
Feature be described flexible guide rail be steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545515.XA CN104261278B (en) | 2014-10-13 | 2014-10-13 | Bipod mast lifting system with flexible guide rail and hanging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545515.XA CN104261278B (en) | 2014-10-13 | 2014-10-13 | Bipod mast lifting system with flexible guide rail and hanging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104261278A CN104261278A (en) | 2015-01-07 |
| CN104261278B true CN104261278B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410545515.XA Active CN104261278B (en) | 2014-10-13 | 2014-10-13 | Bipod mast lifting system with flexible guide rail and hanging method |
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| CN (1) | CN104261278B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236318B (en) * | 2015-10-22 | 2018-01-30 | 浙江省电力建设有限公司 | Hanging basket guider and brushing method for brushing Hyperbolic cooling tower inwall |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB198759A (en) * | 1922-03-06 | 1923-06-06 | Arthur Gerald Gray | Improvements in derricks or cranes |
| CN201228206Y (en) * | 2008-04-30 | 2009-04-29 | 中建三局建设工程股份有限公司 | Self-made small-sized hoisting machine |
| CN201530686U (en) * | 2009-10-31 | 2010-07-21 | 唐福强 | Super high-rise building top weight lifting equipment |
| CN201670669U (en) * | 2010-04-24 | 2010-12-15 | 徐州建机工程机械有限公司 | Rope support device for jib loading boom of tower crane |
| CN204079318U (en) * | 2014-10-13 | 2015-01-07 | 马记 | Bipod mast lifting system with flexible guide rail |
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2014
- 2014-10-13 CN CN201410545515.XA patent/CN104261278B/en active Active
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| CN104261278A (en) | 2015-01-07 |
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