CN102992242A - Steering method used when carrying large heavy by rolling air bags - Google Patents
Steering method used when carrying large heavy by rolling air bags Download PDFInfo
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- CN102992242A CN102992242A CN2012105213306A CN201210521330A CN102992242A CN 102992242 A CN102992242 A CN 102992242A CN 2012105213306 A CN2012105213306 A CN 2012105213306A CN 201210521330 A CN201210521330 A CN 201210521330A CN 102992242 A CN102992242 A CN 102992242A
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Abstract
The invention relates to a steering method used when carrying a large heavy by rolling air bags, wherein left and right cables are arranged at the rear end of a heavy object; the two cables are respectively connected with a winch through a pulley block; and front and rear two rows of ground anchors are arranged at the two sides of a downward gliding slope respectively. The steering method comprises the steering steps that the two cables are connected with the rear row of ground anchors which are arranged at the two sides of the downward gliding slope respectively, and an angle of 30 degrees is formed between the cables and the longitudinal axis of the heavy object; the axes of the rolling air bags at the middle front part and the cross axis of the heavy object are arranged by forming an angle of 0-20 degrees, and arranging five rolling air bags at the tail part and the cross axis of the heavy object are arranged by forming an angle of -5 degrees; the two cables are controlled to assist the steering by using the winch in the downward gliding process, wherein the tension of the cable close to the inner side of steering is greater than that of the cable at the outer side so that the downward gliding speed at the inner side of steering is smaller than that of the outer side; as a result, the steering of the heavy object is steered while gliding downwards along with the rolling air bags; and finally, the two cables are moved to the front row of ground anchors arranged at the two sides of the down gliding slope to control downward gliding of the heavy object.
Description
Technical field
The present invention relates to a kind of forward method when utilizing scroll airbag delivery large and heavy objects, be mainly used in airbag aeration and hold up turning in the dilatory entry process of large and heavy objects.
Background technology
Along with the development of China's economic construction and the rapid growth of traffic demand, bay, straits, the construction of leap rivers bridge are also more and more, the span of various bridge types breaks the world record in succession, indicates that the bridge construction technology of China is reached advanced world standards.The at present construction of bridge water Zhong Dun, beam, need frequently the dilatory entry of large-scale component, the air-bag method entry is common Double-Wall Steel Boxed Cofferdam entry method, economical and simple to operate, but sometimes be subjected to the influence of topography can't build sufficiently long linear ramp, air bag rolled turn to that water becomes a great problem under the transportation steel cofferdam.
Summary of the invention
For the defects that exists in the prior art, the invention provides a kind of method that can realize that scroll airbag delivery weight turns to.
The technical solution adopted in the present invention is: a kind of forward method when utilizing scroll airbag delivery large and heavy objects, a plurality of scroll airbags are established in the weight bottom, its special character is, two hawsers about the rear end of weight arranges, described two hawsers are connected with winch by assembly pulley respectively, front and back two row's earth anchors are set respectively in the both sides in downslide ramp, turn to step to be: described two hawsers are connected with the rear row's earth anchor that is located at both sides, downslide ramp respectively, and make hawser and weight longitudinal axis be 30 ° of angles, make middle front part scroll airbag axis and weight lateral axis be 0～20 ° of oblique layout in angle, 5 scroll airbags of afterbody and weight lateral axis are-5 ° of angles and arrange, utilizing winch to control described two hawsers in the downslide process assists to turn to, near the pulling force of the pulling force that turns to inboard hawser greater than outside hawser, make and turn to inboard slip velocity less than the slip velocity in the outside, weight is finished in gliding with scroll airbag and is turned to, and then described two hawsers is moved to the front-seat earth anchor that is located at both sides, downslide ramp and is used for the downslide of control weight.
The present invention by scroll airbag is carried out special direction setting and in the downslide process control by the post-tensioning hawser realized weight turning in the downslide process.
All the time be in rolling condition in order to ensure air bag, do not increase traction force, the present invention slowly becomes the slope with the downslide ramp, described downslide ramp is divided into three sections, wherein the gradient in first paragraph ramp is 1%, and the gradient in second segment ramp is that the gradient in 3%, the three section ramp is 6%.
Stressedly when guaranteeing that air bag in working order evenly and can normally roll in dilatory process, the present invention is provided with supporting plate in the bottom of delivery weight.
The present invention is by carrying out special direction setting and by in the downslide process controlling of post-tensioning hawser having been realized weight turning in the downslide process to scroll airbag.The invention solves dilatory large and heavy objects entry be subjected to influence of topography linear ramp not length can not use not the technical barrier of air-bag method, greatly improve the work efficiency of the dilatory entry of large and heavy objects under the complex-terrain and saved widely human and material resources, improved the benefit of engineering.
Description of drawings
Fig. 1 is the schematic top plan view in the specific embodiment of the invention;
Fig. 2 is the generalized section in the specific embodiment of the invention;
Among the figure, the 1st, assembly pulley I, the 2nd, rear row's earth anchor I, the 3rd, winch I, the 4th, hawser I, the 5th, weight, the 6th, front-seat earth anchor I, the 7th, downslide ramp, the 8th, assembly pulley II, the 9th, rear row's earth anchor II, the 10th, winch II, the 11st, hawser II, the 12nd, front-seat earth anchor II, the 13rd, tracting cable, the 14th, scroll airbag, the 15th, supporting plate.
The specific embodiment
Below by embodiment and by reference to the accompanying drawings to further instruction of the present invention:
1-is shown in Figure 2 such as accompanying drawing, a kind of forward method when utilizing scroll airbag delivery large and heavy objects, adopt winch by the dilatory weight of tracting cable, weight is slowly moved ahead on the slideway that is comprised of a plurality of scroll airbags 14, continuous scroll airbag with the weight rear moves to the place ahead in the moving process, realizes the movement of large and heavy objects, wherein, scroll airbag 14 is 7 rollings in the downslide ramp, and downslide ramp 7 has the gradient.For control large and heavy objects slip velocity and turn to, the present invention is two hawsers about the rear end of weight 5 arranges respectively, be hawser I 4 and hawser II 11, the hawser I is connected with winch I 3 by assembly pulley I 1, the hawser II is connected with winch II 10 by assembly pulley II 8, front and back two row's earth anchors are set respectively in the both sides in downslide ramp 7, are respectively rear row's earth anchor I 6, rear row's earth anchor II 9 and front-seat earth anchor I 6, front-seat earth anchor II 12.In dilatory moving process, turn to while advancing, turn to step to be: with hawser I 4 are connected with the hawser II respectively with the rear row's earth anchor I 6 that is located at 7 both sides, downslide ramp be connected row's earth anchor II 9 and be connected, and make hawser and weight 5 longitudinal axiss be 30 ° of angles, make middle front part scroll airbag 14 axis and weight 5 lateral axiss be 0～20 ° of oblique layout in angle, 5 scroll airbags 14 and weight 5 lateral axiss of afterbody are-5 ° of angles and arrange, in moving process, utilize two hawsers of winch control to assist to turn to, control is near the pulling force of the pulling force that turns to inboard hawser I greater than outside hawser II, make to turn to inboard slip velocity less than the slip velocity in the outside, weight is finished in gliding with scroll airbag 14 and is turned to.After weight turns to scroll airbag, two hawsers are moved to respectively front-seat earth anchor I 6, front-seat earth anchor II 12 places for anti-slip, and the control weight glides.
All the time be in rolling condition in order to ensure scroll airbag, do not increase traction force, present embodiment slowly becomes the slope with downslide ramp 7, the downslide ramp is divided into three sections, and wherein first paragraph is for loading the place, and its gradient is 1%, the gradient in second segment ramp is that the gradient in 3%, the three section ramp is 6%.Wherein, the first two ramp is to turn to the ramp, and the 3rd ramp is the entry ramp, and weight walks to can finish in second slope section and turns to.
Stressedly when guaranteeing that scroll airbag in working order evenly and can normally roll in dilatory process, present embodiment arranges supporting plate 15 in the bottom of delivery weight 5.
Other parts of the present invention adopt known technology, do not repeat them here.
Claims (3)
1. forward method when utilizing scroll airbag delivery large and heavy objects, a plurality of scroll airbags are established in the weight bottom, it is characterized in that: two hawsers about the rear end of weight arranges, described two hawsers are connected with winch by assembly pulley respectively, front and back two row's earth anchors are set respectively in the both sides in downslide ramp, turn to step to be: described two hawsers are connected with the rear row's earth anchor that is located at both sides, downslide ramp respectively, and make hawser and weight longitudinal axis be 30 ° of angles, make middle front part scroll airbag axis and weight lateral axis be 0～20 ° of oblique layout in angle, 5 scroll airbags of afterbody and weight lateral axis are-5 ° of angles and arrange, utilizing winch to control described two hawsers in the downslide process assists to turn to, near the pulling force of the pulling force that turns to inboard hawser greater than outside hawser, make and turn to inboard slip velocity less than the slip velocity in the outside, weight is finished in gliding with scroll airbag and is turned to, and then described two hawsers is moved to the front-seat earth anchor that is located at both sides, downslide ramp and is used for the downslide of control weight.
2. the forward method when utilizing scroll airbag delivery large and heavy objects according to claim 1, it is characterized in that: described downslide ramp is divided into three sections, wherein the gradient in first paragraph ramp is 1%, and the gradient in second segment ramp is that the gradient in 3%, the three section ramp is 6%.
3. the forward method when utilizing scroll airbag delivery large and heavy objects according to claim 1 and 2, it is characterized in that: the bottom at the delivery weight is provided with supporting plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210521330.6A CN102992242B (en) | 2012-12-07 | 2012-12-07 | Steering method used when carrying large heavy by rolling air bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210521330.6A CN102992242B (en) | 2012-12-07 | 2012-12-07 | Steering method used when carrying large heavy by rolling air bags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102992242A true CN102992242A (en) | 2013-03-27 |
| CN102992242B CN102992242B (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210521330.6A Expired - Fee Related CN102992242B (en) | 2012-12-07 | 2012-12-07 | Steering method used when carrying large heavy by rolling air bags |
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| Country | Link |
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| CN (1) | CN102992242B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703060A (en) * | 2017-03-01 | 2017-05-24 | 中国五冶集团有限公司 | Structure for launching open caisson through airbag method and launching method based on structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750982Y (en) * | 2004-07-14 | 2006-01-11 | 江南造船(集团)有限责任公司 | Position shifting device for semi-ship |
| CN1763314A (en) * | 2005-05-26 | 2006-04-26 | 广东省航盛工程有限公司 | Method for moving large-scale heavy member to launch and float on water, and member mounting method |
| CN101775811A (en) * | 2010-03-22 | 2010-07-14 | 中交二公局第五工程有限公司 | Air-bag launching method of large steel overhead bin and cofferdam |
| CN102409689A (en) * | 2011-09-21 | 2012-04-11 | 中铁大桥局股份有限公司 | Method for realizing flat turning and watering of double-walled steel cofferdam by utilizing air bags |
-
2012
- 2012-12-07 CN CN201210521330.6A patent/CN102992242B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750982Y (en) * | 2004-07-14 | 2006-01-11 | 江南造船(集团)有限责任公司 | Position shifting device for semi-ship |
| CN1763314A (en) * | 2005-05-26 | 2006-04-26 | 广东省航盛工程有限公司 | Method for moving large-scale heavy member to launch and float on water, and member mounting method |
| CN101775811A (en) * | 2010-03-22 | 2010-07-14 | 中交二公局第五工程有限公司 | Air-bag launching method of large steel overhead bin and cofferdam |
| CN102409689A (en) * | 2011-09-21 | 2012-04-11 | 中铁大桥局股份有限公司 | Method for realizing flat turning and watering of double-walled steel cofferdam by utilizing air bags |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703060A (en) * | 2017-03-01 | 2017-05-24 | 中国五冶集团有限公司 | Structure for launching open caisson through airbag method and launching method based on structure |
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| Publication number | Publication date |
|---|---|
| CN102992242B (en) | 2015-04-29 |
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Granted publication date: 20150429 Termination date: 20151207 |
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