CN103754547B - A kind of chassis and go out to transport the method for super-heavy component of sliding - Google Patents

A kind of chassis and go out to transport the method for super-heavy component of sliding Download PDF

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Publication number
CN103754547B
CN103754547B CN201310754810.1A CN201310754810A CN103754547B CN 103754547 B CN103754547 B CN 103754547B CN 201310754810 A CN201310754810 A CN 201310754810A CN 103754547 B CN103754547 B CN 103754547B
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China
Prior art keywords
sliding
rubber slab
steel plate
chassis
plate
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CN201310754810.1A
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Chinese (zh)
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CN103754547A (en
Inventor
郑远斌
李耕
陆红
胡利文
王法先
居治安
郝建东
Original Assignee
中交第四航务工程局有限公司
中交四航局第三工程有限公司
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Priority to CN201310754810.1A priority Critical patent/CN103754547B/en
Publication of CN103754547A publication Critical patent/CN103754547A/en
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Publication of CN103754547B publication Critical patent/CN103754547B/en

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Abstract

The invention provides a kind of chassis and go out to transport the method for super-heavy component of sliding, a kind of slip chassis includes: slide plate and high-pressure water chamber, and described slide plate is frame-type component, and described high-pressure water chamber is positioned at the frame of described slide plate; Described slide plate includes: sliding material and gripper shoe, and described gripper shoe is placed in the upper surface of described sliding material; Described sliding material and gripper shoe are frame-type component. Described sliding material is polyfluortetraethylene plate, and described polyfluortetraethylene plate is provided with water inlet. Described gripper shoe includes: the first steel plate, the second steel plate, the first rubber slab, the second rubber slab, described first steel plate is laminated on the first rubber slab, first rubber slab is laminated on the second steel plate, and the second steel plate is laminated on the second rubber slab, and the second rubber slab is laminated on described sliding material. The present invention can reduce frictional resistance, extends the service life of sliding material, reduces passage power and thrust, and process structure is simple, and low cost is beneficial to popularization.

Description

A kind of chassis and go out to transport the method for super-heavy component of sliding

Technical field

The present invention relates to carrying field, be specifically related to a kind of chassis and go out to transport the method for super-heavy component of sliding.

Background technology

It is basic technology in all kinds engineering construction that heavy mail moves, and has significantly significant to the construction technology progress of the mankind. Being rolled to wheel track from round log, from the hydraulic immersed tube pushing tow of the huge stone component that the world is the heaviest up till now 76000 tons of several tons, always towards increasing, advance in increasingly heavier direction.

For increasingly heavier component, the system design of movement also becomes increasingly complex, and equipment is more and more huger, and technique cost is more and more higher, and difficulty of construction is also increasing.

Wheel-rail technology the most common, for the heavy mail (such as large box girder) that length and width length is bigger, it is desirable to go out fortune steadily, track chassis technics comparing is suitable, but grounding pressure is relatively big, and every square reaches 200��500 tons, track foundation processes and chassis equipment investment is higher. When construction weight reaches more than ton, the quantity of chassis quite more than, track is also more and more heavier, and it is high to go out to transport system cost, and wheel-rail technology is inadaptable.

Air bag goes out mode extremely large economic worth. It is that hoisting gasbag is filled in member bottom section (trench) that air bag goes out transportation technique, then inflation jacking component, component jacking passes through chock pad after completing, fill in moving gasbag, component is seated on moving gasbag, then utilizes the pull strength of hoist engine to make air bag roll the technique driving component to move. By component ground connection ratio, about 20 tons every square metre, at the bottom of foundation requirement, but it is only applicable to the component that grounding pressure is less, length-width ratio is little, and sometimes can not use for prestressed component.

In super heavy component, the main flow of slide plate occuping market gradually, a large amount of bridge, caisson, immersed tube employ this technology both at home and abroad. But, this technology of currently used slide plate, because of the effect that surface is bonding, the maximum quiet coefficient of friction that rubs is about 6%, is bordering on 8% after being placed in original position for a long time.When the heavy mail of ten thousand tons of weighing moves, thrust also reaches 800 tons, port Zhuhai and Macao bridge immersed tube prefabricated go out when transporting, other facility such as subsidiary template, go out nearly 80000 tons of weight when transporting, considering the thrust nargin of design, thrust also reaches 6000 tons, and system is huge, investment cost is significantly high, and in the process of movement, the sliding material loss of each cycle of operation is very big, and renewal cost is significantly high.

Some special engineerings also occurring in that, water pocket water cushion goes out to transport technique, air cushion goes out to transport technique etc.

The technique that goes out to transport of air bag and chassis is now only widely used in the component less than 10,000 tons. Overweight part slide plate pushing tow goes out fortune needs very big jacking force, goes out fortune system considerably complicated, and technology is difficult to grasp, somewhat expensive. Air-cushion technology structure is complicated, it is necessary to spends huge power, somewhat expensive, to using environment and working condition to require harshness, does not utilize popularization.

Being not difficult to find out, prior art, to going out to transport ten thousand tons until the heavy mail of 10 tons, there is also certain defect.

Summary of the invention

The technical problem to be solved is to provide a kind of chassis and go out to transport the method for super-heavy component of sliding, and it can reduce frictional resistance, extends the service life of sliding material, reduces passage power and thrust, and process structure is simple, and low cost is beneficial to popularization.

For this, the present invention provides following technical scheme:

A kind of slip chassis, including:

Slide plate and high-pressure water chamber, described slide plate is frame-type component, and described high-pressure water chamber is positioned at the frame of described slide plate;

Described slide plate includes: sliding material and gripper shoe, and described gripper shoe is placed in the upper surface of described sliding material; Described sliding material and gripper shoe are frame-type component.

Further, described sliding material is polyfluortetraethylene plate, and described polyfluortetraethylene plate is provided with water inlet.

Further, described gripper shoe includes: the first steel plate, the second steel plate, the first rubber slab, the second rubber slab, and described first steel plate is laminated on the first rubber slab, and it is further that the first rubber slab is laminated on the second steel plate, and the second rubber slab is laminated on described sliding material.

Further, described slip chassis also includes: water pump and water tank, one end of described water pump is connected to described water tank, and the other end is connected to described duct and sequentially passes through the first rubber slab, the second steel plate and the second rubber slab by cored screw and communicate with described high-pressure water chamber.

Further, described slip chassis also includes: overflow valve, and one end of described overflow valve is connected to described water tank, and the other end is connected to the passage between described water pump and opening of the channel.

Further, described slip chassis also includes: stagnant pull rope after anti-, is used for preventing slip chassis from sliding voluntarily.

The present invention also provides for a kind of adopting described slip chassis to go out to transport the method for super-heavy component, including:

Slip chassis is placed in desired location;

The pressure-bearing distribution beam of carrying super-heavy component is fallen on described slip chassis;

The high-pressure water chamber of described slip chassis is carried out water-filling, pressurization;

Push-and-pull super-heavy component so that it is produce the power to target direction motion.

The present invention is by arranging slide plate and high-pressure water chamber, high-pressure water chamber is made to become a part for friction pair, most of weight of super-heavy component is carried by high-pressure water chamber, the weight that slide plate carries greatly reduces, when super-heavy component moves, greatly reduce frictional resistance, reduce passage power and thrust; And total amount must be carried suffered by slide plate greatly reduce, and then extend to service life. And slip chassis provided by the present invention purchase clothing simple in construction, manufacturing cost is cheap, simultaneously to using environment and working condition to have no special requirements, is beneficial to and promotes on a large scale.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

The one slip chassis schematic diagram that Fig. 1 provides for the embodiment of the present invention;

Fig. 2 is the vertical cross section figure of Fig. 1;

A kind of chassis working state figure when going out to transport super-heavy component that slides that Fig. 3 provides for the embodiment of the present invention.

Drawing reference numeral illustrates:

The sliding material of 2-; 22-gripper shoe; 222-high-pressure water chamber;

1-the first steel plate; 3-the second steel plate; 4-the first rubber slab; 5-the second rubber slab;

6-duct; 7-cored screw;

8-pressure-bearing distribution beam; 9-slip chassis; 10-orbital plane; 11-slideway base;

12-overflow valve; 13-water pump; 14-water tank; 15-overweight object

Detailed description of the invention

For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention and accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described. It should be noted that described embodiment a part of embodiment that is only the present invention, rather than whole embodiment. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.

Embodiment

As it is shown in figure 1, the one slip chassis that the present embodiment provides, including:

Slide plate and high-pressure water chamber 222, described slide plate is frame-type component, and described high-pressure water chamber 222 is positioned at the frame of described slide plate;

Described slide plate includes: sliding material 2 and gripper shoe 22, and described gripper shoe 22 is placed in the upper surface of described sliding material 2; Described sliding material 2 and gripper shoe 22 are frame-type component.

As preferably, as in figure 2 it is shown, described sliding material 2 is polyfluortetraethylene plate, described polyfluortetraethylene plate being provided with water inlet. As preferably, described gripper shoe 22 includes: first steel plate the 1, second steel plate the 3, first rubber slab the 4, second rubber slab 5, described first steel plate 1 is laminated on the first rubber slab 4, first rubber slab 4 is laminated on the second steel plate 3, second steel plate 3 is laminated on the second rubber slab 5, and the second rubber slab 5 is laminated on described sliding material 2. It should be noted that as preferably, described first steel plate 1 to the second steel plate 3 is thick, in the present embodiment, it is preferable that steel plate thick for 35mm as the thick steel plate of the first steel plate 1,6mm as the second steel plate 3, it is thick that described first rubber slab 4 is preferably 10mm, and it is thick that the second rubber slab 5 is preferably 6mm. Adopting being primarily intended to as solving the sliding surface when carrying overweight object and sliding at orbital plane 10(and slip chassis 9 of first rubber slab the 4, second steel plate 3 and the second rubber slab 5) pressure that brings of out-of-flatness makes the water loss in high-pressure water chamber 222, and also solving the variable thickness of polyfluortetraethylene plate when arranging high-pressure water chamber 222 causes problem simultaneously.

As preferably, described first steel plate 1 is provided with duct 6. As preferably, described slip chassis 9 also includes: water pump 13 and water tank 14, one end of described water pump 13 is connected to described water tank 14, and the other end is connected to described duct 6 and sequentially passes through first rubber slab the 4, second steel plate 3 and the second rubber slab 5 communicates with described high-pressure water chamber 222 by cored screw 7. As preferably, described slip chassis 9 also includes: overflow valve 12, and one end of described overflow valve 12 is connected to described water tank 14, and the other end is connected to the passage between described water pump 13 and 6 mouthfuls of duct. As preferably, described slip chassis 9 also includes: stagnant pull rope after anti-, is used for preventing slip chassis 9 from line slip.

It should be noted that under the operating pressure specified, the flow of water pump 13 is only small, also seldom overflow orbital plane 10.Even if occurring overflowing, the flow of water pump 13 can supplement immediately; As preferably supplementing also by equipment energy-storing device. The water of overflow can pass through overflow valve 12 reflow tank 14 again. Source such as water is sufficient, then can not use overflow valve 12. For prevent without traction situation lower slider chassis 9 from the situation of line slip, when longitudinal gradient is bigger, should arrange anti-after slip pull rope.

The slip chassis 9 that the present embodiment consists of polyfluortetraethylene plate (sliding material 2), gripper shoe 22, high-pressure water chamber 222 carries super-heavy component, when carrying super-heavy component, water under high pressure forms water cushion in high-pressure water chamber 222, water cushion carries the sub-fraction weight of the simply super-heavy component that most of weight of super-heavy component, politef vinyl plate and gripper shoe 22 carry.

It should be noted that arrange at this water pump 13, water tank 14, overflow valve 12 purpose be: when packing super-heavy component, if there being water overflow to go out high-pressure water chamber 222, described water pump 13 can supplement in time, and the water of overflow can reflow tank 14 again.

The present invention also provides for a kind of adopting described slip chassis 9 to go out to transport the method for super-heavy component, including: slip chassis 9 is placed in desired location; Super-heavy component is fallen on described slip chassis 9; The high-pressure water chamber 222 of described slip chassis 9 is carried out water-filling, pressurization; Push-and-pull super-heavy component so that it is produce the power to target direction motion.

As it is shown on figure 3, illustrate to adopt described slip chassis 9 to go out to transport the method for super-heavy component with an example below:

Certain engineering access bridge is caisson pier formula structure, lays 3 precast prestressed box beam 15(and super-heavy component mentioned above between every two piers), have 51. Box beam 15 physical dimension is 51m(length) �� 2.6m(width) �� 3.5m(height), maximum weight is 808t. This box beam 15 is prefabricated in precasting yard, it is necessary to goes out to be transported to wharf apron and just can carry out lifting installation, in view of box beam 15 construction features, selects the slip chassis 9 that the present embodiment provides to go out to transport this box beam 15.

If monolithic slide plate and orbital plane 10(orbital plane 10 are arranged in slideway base 11) contact length be 1.2m, width is 0.6m. Inner chamber (high-pressure water chamber 222 namely mentioned above) is long is 0.9m, wide for 0.32m. The slip chassis 9 that each 2 the present embodiment in every side provide, uses 6 slip chassis 9 altogether.

The gross area that rustless steel track contacts with polyfluortetraethylene plate (i.e. sliding material 2) is:

S=6 �� (1.2m �� 0.6m-0.32m �� 0.9m)=2.6m2

Polyfluortetraethylene plate contact pressure-bearing:

F=(808t �� 9.8kN/t) �� 2.6m2��3.0MPa

Polyfluortetraethylene plate comprcssive strength is about 10MPa, and pressure-bearing affluence degree time static is about the coefficient calculations of 3.3.

The area of built-in water cavity (high-pressure water chamber 222 namely mentioned above) is:

S=6��0.32m��0.9m=1.73m2

Water cushion (in high-pressure water chamber 222, after water-filling, pressurization is formed) pressure is chosen as 3.5MPa, then can bear:

F=1.73m2��3.5MPa=6055kN

Politef comprcssive strength is about 10MPa, and the internal dynamic nargin by water under high pressure is about 2.86 times.

Time static whole heavy mail pressure (weight of box beam 15 mentioned above) and dynamic time by the difference of the part of water pressure-bearing, the coefficient of sliding friction of politef undertake, then its frictional force is:

f=��(808t��9.8kN/t-6055kN)=0.03��540kN=55.9kN

At this moment the average pressure that politef bears is:

N=(808t��9.8kN/t-6055kN)��2.6m2=0.71MPa

Therefore overall friction coefficient is:

F=55.9kN �� (808t �� 9.8kN/t)=0.007

Situation when this and practice of construction meets, and actual overall coefficient of friction, about 0.006��0.008, greatly reduces frictional force.

When packing this box beam 15, using 6 pieces of slip chassis 9 altogether, 5MPa pressure selected by water pump 13, and flow is 36L/min.

Outside skateboard, clamp bevel welds entirely, uses the welding rod of D=2.5mm to carry out full weldering angle lap, possesses the ability of lateral force resisting.

Use the rubber slab that elastic modelling quantity is suitable, it is ensured that decrement is about 2.5mm to rubber slab (including the first rubber slab 4 and the second rubber slab 5 mentioned above) thick for 16mm when 3.5MPa.

Embedded 6mm surface of steel plate is nature roughness or beats thick.

Sliding construction

Sliding construction is pressurizeed by the box beam 15 that falls, slip chassis 9, three steps that move forward form.

Whereabouts box beam 15

Box beam 15 is after jack jacking, slip chassis 9 and distribution beam are placed in box beam 15 end in the way of dragging or elapsing, fall box beam 15, and the two ends of box beam 15 are press respectively against the surface of pressure-bearing distribution beam 8, and the gravity of box beam 15 all passes to slip chassis 9 through pressure-bearing distribution beam 8.

Box beam 15 falls after well, and the high-pressure water chamber 222 of slip chassis 9 is carried out water-filling, pressurization, and when pressure increases to and calculates required pressure, overflow valve 12 action, overflow can come back to water tank 14.

Slip chassis 9 after pressurization, because conversion occurs in the pressure distribution of high-pressure water chamber 222 inner rubber, there is extremely small displacement in the sliding material 2 contacted with orbital plane 10, destroy maximum static friction force, simultaneously as the supporting role of hydraulic pressure, only have partial pressure and be delivered to orbital plane 10 by sliding material 2. Now with hoist engine or other form push-and-pull heavy mail (i.e. box beam 15), heavy mail produces motion forward.

The present invention is by arranging slide plate and high-pressure water chamber 222, high-pressure water chamber 222 is made to become a part for friction pair, most of weight of super-heavy component is carried by high-pressure water chamber 222, the weight that slide plate carries greatly reduces, when super-heavy component moves, greatly reduce frictional resistance, reduce passage power and thrust; And total amount must be carried suffered by slide plate greatly reduce, and then extend to service life. And slip chassis 9 provided by the present invention purchase clothing simple in construction, manufacturing cost is cheap, simultaneously to using environment and working condition to have no special requirements, is beneficial to and promotes on a large scale.

Embodiment described above only have expressed one embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (6)

1. a slip chassis, it is characterised in that including:
Slide plate and high-pressure water chamber, described slide plate is frame-type component, and described high-pressure water chamber is positioned at the frame of described slide plate;
Described slide plate includes: sliding material and gripper shoe, and described gripper shoe is placed in the upper surface of described sliding material; Described sliding material and gripper shoe are frame-type component;
Described sliding material is polyfluortetraethylene plate, and described polyfluortetraethylene plate is provided with water inlet;
Described gripper shoe includes: the first steel plate, the second steel plate, the first rubber slab, the second rubber slab, described first steel plate is laminated on the first rubber slab, first rubber slab is laminated on the second steel plate, and the second steel plate is laminated on the second rubber slab, and the second rubber slab is laminated on described sliding material.
2. slip chassis according to claim 1, it is characterised in that: described first steel plate is provided with duct.
3. slip chassis according to claim 2, it is characterized in that, also include: water pump and water tank, one end of described water pump is connected to described water tank, and the other end is connected to described duct and sequentially passes through the first rubber slab, the second steel plate and the second rubber slab by cored screw and communicate with described high-pressure water chamber.
4. slip chassis according to claim 3, it is characterised in that also including: overflow valve, one end of described overflow valve is connected to described water tank, and the other end is connected to the passage between described water pump and opening of the channel.
5. slip chassis according to claim 4, it is characterised in that also include: stagnant pull rope after anti-, is used for preventing slip chassis from sliding voluntarily.
6. the slip chassis that a kind adopts described in claim 1 goes out to transport the method for super-heavy component, it is characterised in that including:
Slip chassis is placed in desired location;
The pressure-bearing distribution beam of carrying super-heavy component is fallen on described slip chassis;
The high-pressure water chamber of described slip chassis is carried out water-filling, pressurization;
Push-and-pull super-heavy component so that it is produce the power to target direction motion.
CN201310754810.1A 2013-12-31 2013-12-31 A kind of chassis and go out to transport the method for super-heavy component of sliding CN103754547B (en)

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CN201310754810.1A CN103754547B (en) 2013-12-31 2013-12-31 A kind of chassis and go out to transport the method for super-heavy component of sliding

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CN103754547B true CN103754547B (en) 2016-06-08

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109138425A (en) * 2018-09-27 2019-01-04 浙江精工钢结构集团有限公司 A kind of anti-certainly sliding construction equipment and its method tilted in sliding construction from top to bottom

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0395006A (en) * 1989-09-04 1991-04-19 Taisei Corp Transportation and transporter for object to be transported
JPH0710233A (en) * 1993-06-18 1995-01-13 Ohbayashi Corp Transfer of heavy material and sliding base used therefor
CN101463589A (en) * 2008-12-25 2009-06-24 路桥华南工程有限公司 Adjustable slipper block for jacking complicated vertical camber beam and method for producing the same
CN102002914A (en) * 2010-11-17 2011-04-06 中铁二十四局集团有限公司 Construction pushing device of steel box beam
CN102080356A (en) * 2010-12-17 2011-06-01 中铁大桥局集团第四工程有限公司 Box girder positioning temporary supporting seat and positioning construction method of box girder
CN203638516U (en) * 2013-12-31 2014-06-11 中交第四航务工程局有限公司 Sliding trolley

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0395006A (en) * 1989-09-04 1991-04-19 Taisei Corp Transportation and transporter for object to be transported
JPH0710233A (en) * 1993-06-18 1995-01-13 Ohbayashi Corp Transfer of heavy material and sliding base used therefor
CN101463589A (en) * 2008-12-25 2009-06-24 路桥华南工程有限公司 Adjustable slipper block for jacking complicated vertical camber beam and method for producing the same
CN102002914A (en) * 2010-11-17 2011-04-06 中铁二十四局集团有限公司 Construction pushing device of steel box beam
CN102080356A (en) * 2010-12-17 2011-06-01 中铁大桥局集团第四工程有限公司 Box girder positioning temporary supporting seat and positioning construction method of box girder
CN203638516U (en) * 2013-12-31 2014-06-11 中交第四航务工程局有限公司 Sliding trolley

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