CN102431912B - Method for assessing balance weight of tower crane - Google Patents
Method for assessing balance weight of tower crane Download PDFInfo
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- CN102431912B CN102431912B CN 201110273823 CN201110273823A CN102431912B CN 102431912 B CN102431912 B CN 102431912B CN 201110273823 CN201110273823 CN 201110273823 CN 201110273823 A CN201110273823 A CN 201110273823A CN 102431912 B CN102431912 B CN 102431912B
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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 balance 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 because the center-of-gravity position of tower machine is high, need to open the allocation and transportation work that weight is finished in braking in the working process, so that tower machine danger in the course of the work is high than other weight-lifting equipment.Because the management of present tower machine is not in place, the overweight or phenomenon that kicks the beam of balance weight often occurs, cause body of the tower distortion and stress to increase, cause the serious accidents such as tumbling appears in the tower machine.
In sum, 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 tower machine that namely meets national standard and acceptance(check).
Summary of the invention
For existing technical matters, the invention provides a kind of method of assessing tower machine balance weight.
Technical scheme of the present invention is as follows:
A kind of method of assessing tower machine balance weight, method is as follows:
1) set up tower machine balance weight assessment models:
A. set up model coordinate systems
Take O as coordinate origin, wherein O is the intersection point of body of the tower plane of rotation and body of the tower center vertical line, described body of the tower plane of rotation is body of the tower pivoting support plane of rotation, described body of the tower center vertical line be with perpendicular to ground and cross body of the tower at the straight line of the center-point of ground constant cross-section, 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 perpendicular to ground facing up, and coordinate axle y positive dirction is for to meet right-hand 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 (such as 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 are
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 is
In model coordinate systems xyz, tower machine balance weight assessment models is, connects unloaded center-point 6 and volume carries center-point 8 with straight line EF, 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 straight line EF and the volume that passes;
2) equilibrium point of dip measuring device is compared with tower machine balance 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 in tower machine balance weight assessment models straight line AB left side, judge that then the counterweight of tower machine is ultralight;
When the equilibrium point of dip measuring device during on tower machine balance weight assessment models straight line CD right side, judge that the counterweight of tower machine is overweight;
When the equilibrium point of dip measuring device is between tower machine balance 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 to tower owner limb before dispatching from the factory, and the axis of this main limb is parallel to plumb bob vertical, sets the equilibrium point of dip measuring device this moment.
The invention has the advantages that:
Overweight or kick the beam and assess to tower machine balance weight, can avoid the generation of the tower machine safety misadventure that causes because 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 overweight, the ultralight or normal method scheme drawing of assessment tower machine balance weight.
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 described in detail, but is not limited to this.
Embodiment
A kind of method of assessing tower machine balance weight, method is as follows:
1) set up tower machine balance weight assessment models:
A. set up model coordinate systems
Take O as coordinate origin, wherein O is the intersection point of body of the tower plane of rotation and body of the tower center vertical line, described body of the tower plane of rotation is body of the tower pivoting support plane of rotation, described body of the tower center vertical line be with perpendicular to ground and cross body of the tower at the straight line of the center-point of ground constant cross-section, 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 perpendicular to ground facing up, and coordinate axle y positive dirction is for to meet right-hand rule perpendicular to the crane arm axis direction and with x, z axle;
B. determine that unloaded center-point and volume under the tower machine serviceable condition carry center-point:
Utilize dip measuring device (such as 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 are
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 is
In model coordinate systems xyz, tower machine balance weight assessment models is, connects unloaded center-point 6 and volume carries center-point 8 with straight line EF, 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 straight line EF and the volume that passes;
2) equilibrium point of dip measuring device is compared with tower machine balance 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 in tower machine balance weight assessment models straight line AB left side, judge that the counterweight of tower machine is ultralight;
When the equilibrium point 9 of dip measuring device during on tower machine balance weight assessment models straight line CD right side, judge that the counterweight of tower machine is overweight;
When the equilibrium point 8 of dip measuring device is between tower machine balance weight assessment models straight line AB, CD, judge that the counterweight of tower machine is normal.
Claims (1)
1. method of assessing tower machine balance weight is characterized in that method is as follows:
1) set up tower machine balance weight assessment models:
A. set up model coordinate systems
Take O as coordinate origin, wherein O is the intersection point of body of the tower plane of rotation and body of the tower center vertical line, described body of the tower plane of rotation is body of the tower pivoting support plane of rotation, described body of the tower center vertical line be with perpendicular to ground and cross body of the tower at the straight line of the center-point of ground constant cross-section, 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 perpendicular to ground facing up, and coordinate axle y positive dirction is for to meet right-hand rule perpendicular to the crane arm axis direction and with x, z axle;
B. determine 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 is
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 is
In model coordinate systems xyz, tower machine balance weight assessment models is, 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 straight line EF and the volume that passes;
2) equilibrium point of dip measuring device is compared with tower machine balance weight assessment models, overweight according to comparative result assessment tower machine balance weight, kick the beam or normally:
When the equilibrium point of dip measuring device during in tower machine balance weight assessment models straight line AB left side, judge that the counterweight of tower machine is ultralight;
When the equilibrium point of dip measuring device during on tower machine balance weight assessment models straight line CD right side, judge that the counterweight of tower machine is overweight;
When the equilibrium point of dip measuring device is between tower machine balance weight assessment models straight line AB, CD, judge that the counterweight of tower machine is normal.
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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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| CN 201110273823 CN102431912B (en) | 2011-09-15 | 2011-09-15 | Method for assessing balance weight of tower crane |
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| CN102431912B true CN102431912B (en) | 2013-10-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553973A (en) * | 2017-01-16 | 2017-04-05 | 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 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935895B (en) * | 2014-05-08 | 2016-02-10 | 天津港第五港埠有限公司 | Door machine counterweight special measurement instrument |
| CN106800248B (en) * | 2017-01-16 | 2019-04-26 | 山东建筑大学 | A kind of method and device of tower crane balancing |
| CN106744324B (en) * | 2017-01-16 | 2018-04-03 | 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 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106553973A (en) * | 2017-01-16 | 2017-04-05 | 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 |
| 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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| CN102431912A (en) | 2012-05-02 |
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