CN102431912A - Method for assessing balance weight of tower crane - Google Patents
Method for assessing balance weight of tower crane Download PDFInfo
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- CN102431912A CN102431912A CN2011102738238A CN201110273823A CN102431912A CN 102431912 A CN102431912 A CN 102431912A CN 2011102738238 A CN2011102738238 A CN 2011102738238A CN 201110273823 A CN201110273823 A CN 201110273823A CN 102431912 A CN102431912 A CN 102431912A
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Abstract
The invention provides a method for assessing balance weight of tower crane for assessing whether the balance weight of the tower crane is overweight, underweight or normal by measuring the top inclination of the central line of the tower body of the tower crane by an inclination measuring device when the tower crane is in idle load or rated load under intact condition, establishing a model for assessing balance weight of the tower crane by idle load central point or rated load central point of the tower crane and finally comparing the balance point of the inclination measuring device set in factory and the model for assessing balance weight of the tower crane. The method of the invention can real time monitor the balance weight of tower crane to avoid the safety accident.
Description
Technical field
Patent of the present invention relates to a kind of method of assessing tower machine counterweight weight, belongs to the technical field of construction machinery and equipment safety monitoring.
Background technology
Along with the development of construction business, skyscraper is more and more, and the tower machine is widely used in the camp site as a kind of aerial lift device.But, make tower machine danger in the course of the work high than other weight-lifting equipment because the center-of-gravity position of tower machine is high, need open the allocation and transportation work that weight is accomplished in braking in the working process.Because the management of present tower machine is not in place, the counterweight preponderance or the phenomenon that kicks the beam often occur, cause body of the tower distortion and stress to increase, cause serious accidents such as tumbling appears in the tower machine.
In sum, in real time monitoring tower machine counterweight is overweight or kick the beam for prevention tower machine accident, improve tower machine work efficiency and seem particularly important.
Tower machine serviceable condition: the i.e. tower machine of National standard and acceptance(check).
Summary of the invention
To existing technical matters, the present invention provides a kind of method of assessing tower machine counterweight weight.
Technical scheme of the present invention is following:
A kind of method of assessing tower machine counterweight weight, method is following:
1) set up tower machine counterweight weight assessment models:
A. set up model coordinate systems
With O is coordinate origin; Wherein O is the intersection point of body of the tower plane of rotation and body of the tower center vertical line; Said body of the tower plane of rotation is a body of the tower pivoting support plane of rotation; Described body of the tower center vertical line be with perpendicular to ground and cross the straight line of body of the tower center-point of constant cross-section on ground, coordinate axle x positive dirction is that crane arm is when being parallel to ground, away from the body of the tower direction; Coordinate axle z positive dirction is for to make progress perpendicular to ground, and coordinate axle y positive dirction is for to meet the right-handed helix rule perpendicular to the crane arm axis direction and with x, z axle;
B. unloaded center-point and volume carry center-point under definite tower machine serviceable condition:
Utilize dip measuring device (like Chinese patent CN 201177499 described dip measuring devices) to measure inclination angle, tower machine body of the tower line of centers top; Dip measuring device is installed in the arbitrary main limb of slewing tower under the tower machine serviceable condition or exists on the structure that parallelism requires with the body of the tower axial line; After the tower machine returns three-sixth turn when unloaded; Gather tower machine body of the tower line of centers top inclination data, be designated as (θ
Kxi, θ
Kyi) (i=1,2 ... N),, unloaded center-point 6 coordinates do
In like manner, after tower machine volume returns three-sixth turn when carrying, gather tower machine body of the tower line of centers top inclination data, be designated as (θ
Exi, θ
Eyi) (i=1,2 ... N),, volume carries center-point 8 coordinates and does
In model coordinate systems xyz, tower machine counterweight weight assessment models does, connects unloaded center-point 6 with straight line EF and carries center-point 8 with volume, and straight line AB is perpendicular to straight line EF and pass unloaded center-point 6, and straight line CD carries center-point 8 perpendicular to the straight line EF and the volume that passes;
2) equilibrium point of dip measuring device is compared with tower machine counterweight weight assessment models, judges that tower machine counterweight is overweight, kicks the beam or normally according to comparative result:
When the equilibrium point of dip measuring device during, then judge the counterweight ultralight of tower machine in tower machine counterweight weight assessment models straight line AB left side;
When the equilibrium point of dip measuring device during, judge that the counterweight of tower machine is overweight on tower machine counterweight weight assessment models straight line CD right side;
When the equilibrium point of dip measuring device is between tower machine counterweight weight assessment models straight line AB, CD, judge that the counterweight of tower machine is normal.
The equilibrium point of described dip measuring device is: dip measuring device is installed on it on main limb similar with tower machine master limb before dispatching from the factory, and the parallel axes of this main limb is set the equilibrium point of dip measuring device this moment in plumb bob vertical.
The invention has the advantages that:
To tower machine counterweight preponderance or kick the beam and assess, the generation of the tower machine safety misadventure that can avoid causing because of counterweight is improper.
Description of drawings
Fig. 1 is the installation site scheme drawing of dip measuring device in the tower machine;
Fig. 2 is that assessment tower machine counterweight weight is overweight, ultralight or normal method scheme drawing.
Wherein, 2. slewing tower master limb (or the structure that exists parallelism to require with the body of the tower axial line), 6. unloaded center-point, 7. volume carries center-point, 8. the equilibrium point of dip measuring device, the 9. equilibrium point of dip measuring device, the 10. equilibrium point of dip measuring device.
The specific embodiment
Below in conjunction with embodiment and Figure of description the present invention is done detailed explanation, but be not limited thereto.
Embodiment
A kind of method of assessing tower machine counterweight weight, method is following:
1) set up tower machine counterweight weight assessment models:
A. set up model coordinate systems
With O is coordinate origin; Wherein O is the intersection point of body of the tower plane of rotation and body of the tower center vertical line; Said body of the tower plane of rotation is a body of the tower pivoting support plane of rotation; Described body of the tower center vertical line be with perpendicular to ground and cross the straight line of body of the tower center-point of constant cross-section on ground, coordinate axle x positive dirction is that crane arm is when being parallel to ground, away from the body of the tower direction; Coordinate axle z positive dirction is for to make progress perpendicular to ground, and coordinate axle y positive dirction is for to meet the right-handed helix rule perpendicular to the crane arm axis direction and with x, z axle;
B. confirm that unloaded center-point and volume under the tower machine serviceable condition carry center-point:
Utilize dip measuring device (like Chinese patent CN 201177499 described dip measuring devices) to measure inclination angle, tower machine body of the tower line of centers top; Dip measuring device is installed on the arbitrary main limb of slewing tower under the tower machine serviceable condition; After the tower machine returns three-sixth turn when unloaded; Gather tower machine body of the tower line of centers top inclination data, be designated as (θ
Kxi, θ
Kyi) (i=1,2 ... N),, unloaded center-point 6 coordinates do
In like manner, after tower machine volume returns three-sixth turn when carrying, gather tower machine body of the tower line of centers top inclination data, be designated as (θ
Exi, θ
Eyi) (i=1,2 ... N),, volume carries center-point 8 coordinates and does
In model coordinate systems xyz, tower machine counterweight weight assessment models does, connects unloaded center-point 6 with straight line EF and carries center-point 8 with volume, and straight line AB is perpendicular to straight line EF and pass unloaded center-point 6, and straight line CD carries center-point 8 perpendicular to the straight line EF and the volume that passes;
2) equilibrium point of dip measuring device is compared with tower machine counterweight weight assessment models, judges that tower machine counterweight is overweight, kicks the beam or normally according to comparative result:
When the equilibrium point 10 of dip measuring device during, judge the counterweight ultralight of tower machine in tower machine counterweight weight assessment models straight line AB left side;
When the equilibrium point 9 of dip measuring device during, judge that the counterweight of tower machine is overweight on tower machine counterweight weight assessment models straight line CD right side;
When the equilibrium point 8 of dip measuring device is between tower machine counterweight weight assessment models straight line AB, CD, judge that the counterweight of tower machine is normal.
Claims (1)
1. method of assessing tower machine counterweight weight is characterized in that method is following:
1) set up tower machine counterweight weight assessment models:
A. set up model coordinate systems
With O is coordinate origin; Wherein O is the intersection point of body of the tower plane of rotation and body of the tower center vertical line; Said body of the tower plane of rotation is a body of the tower pivoting support plane of rotation; Described body of the tower center vertical line be with perpendicular to ground and cross the straight line of body of the tower center-point of constant cross-section on ground, coordinate axle x positive dirction is that crane arm is when being parallel to ground, away from the body of the tower direction; Coordinate axle z positive dirction is for to make progress perpendicular to ground, and coordinate axle y positive dirction is for to meet the right-handed helix rule perpendicular to the crane arm axis direction and with x, z axle;
B. confirm that unloaded center-point and volume under the tower machine serviceable condition carry center-point:
Utilize dip measuring device to measure inclination angle, tower machine body of the tower line of centers top, dip measuring device is installed on the arbitrary main limb of slewing tower under the tower machine serviceable condition, after the tower machine returns three-sixth turn when unloaded, gather tower machine body of the tower line of centers top inclination data, be designated as (θ
Kxi, θ
Kyi) (i=1,2 ... N),, unloaded center point coordinate does
In like manner, after tower machine volume returns three-sixth turn when carrying, gather tower machine body of the tower line of centers top inclination data, be designated as (θ
Exi, θ
Eyi) (i=1,2 ... N),, volume carries center point coordinate and does
In model coordinate systems xyz, tower machine counterweight weight assessment models does, connects unloaded center-point and volume carries center-point with straight line EF, and straight line AB is perpendicular to straight line EF and pass unloaded center-point, and straight line CD carries center-point perpendicular to the straight line EF and the volume that passes;
2) equilibrium point of dip measuring device is compared with tower machine counterweight weight assessment models, according to comparative result assessment tower machine counterweight preponderance, kick the beam or normally:
When the equilibrium point of dip measuring device during, judge the counterweight ultralight of tower machine in tower machine counterweight weight assessment models straight line AB left side;
When the equilibrium point of dip measuring device during, judge that the counterweight of tower machine is overweight on tower machine counterweight weight assessment models straight line CD right side;
When the equilibrium point of dip measuring device is between tower machine counterweight weight assessment models straight line AB, CD, judge that the counterweight of tower machine is normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110273823 CN102431912B (en) | 2011-09-15 | 2011-09-15 | Method for assessing balance weight of tower crane |
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| CN 201110273823 CN102431912B (en) | 2011-09-15 | 2011-09-15 | Method for assessing balance weight of tower crane |
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| CN102431912B CN102431912B (en) | 2013-10-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935895A (en) * | 2014-05-08 | 2014-07-23 | 天津港第五港埠有限公司 | Measurement tool special for counter weight of portal crane |
| CN106744324A (en) * | 2017-01-16 | 2017-05-31 | 山东富友慧明测控设备有限公司 | The method for safety monitoring and device of section are moved during a kind of tower crane jacking |
| CN106800248A (en) * | 2017-01-16 | 2017-06-06 | 山东建筑大学 | A kind of method and device of tower crane balancing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553973B (en) * | 2017-01-16 | 2017-12-19 | 中国电建集团核电工程公司 | A kind of tower crane adds, subtracts standard knot method for safety monitoring and device |
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|---|---|---|---|---|
| CN103935895A (en) * | 2014-05-08 | 2014-07-23 | 天津港第五港埠有限公司 | Measurement tool special for counter weight of portal crane |
| CN106744324A (en) * | 2017-01-16 | 2017-05-31 | 山东富友慧明测控设备有限公司 | The method for safety monitoring and device of section are moved during a kind of tower crane jacking |
| CN106800248A (en) * | 2017-01-16 | 2017-06-06 | 山东建筑大学 | A kind of method and device of tower crane balancing |
| CN106800248B (en) * | 2017-01-16 | 2019-04-26 | 山东建筑大学 | A kind of method and device of tower crane balancing |
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| CN102431912B (en) | 2013-10-30 |
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