CN203638516U - Sliding trolley - Google Patents
Sliding trolley Download PDFInfo
- Publication number
- CN203638516U CN203638516U CN201320893115.9U CN201320893115U CN203638516U CN 203638516 U CN203638516 U CN 203638516U CN 201320893115 U CN201320893115 U CN 201320893115U CN 203638516 U CN203638516 U CN 203638516U
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- Prior art keywords
- plate
- sliding
- sliding material
- rubber
- rubber plate
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Abstract
The utility model provides a sliding trolley. The sliding trolley comprises a sliding plate and a high-pressure water cavity, wherein the sliding plate is a frame type component, the high-pressure water cavity is located in a frame of the sliding plate, the sliding plate comprises a sliding material and a supporting plate, the supporting plate is arranged on the upper surface of the sliding material, both the sliding material and the supporting plate are frame type components, the sliding material is a polyfluortetraethylene plate, and a water inlet is formed in the polyfluortetraethylene plate. The supporting plate comprises a first steel plate, a second steel plate, a first rubber plate and a second rubber plate, wherein the first steel plate is arranged on the first rubber plate in a folding mode, the first rubber plate is arranged on the second steel plate in a folding mode, the second steel plate is arranged on the second rubber plate in a folding mode, and the second rubber plate is arranged on the sliding material in a folding mode. According to the sliding trolley, friction resistance can be reduced, the service life of the sliding material is prolonged, pushing power is reduced, pushing force is reduced, the technological structure is simple, cost is low, and the trolley can be popularized easily.
Description
Technical field
The utility model relates to carrying field, is specifically related to a kind of slip chassis.
Background technology
It is the basic technology in all kinds engineering construction that heavy mail moves, and has significantly significant to the mankind's operating technique progress.Be rolled to wheel track from round log, from the huge stones of the several tons hydraulic immersed tube pushing tow of 76000 tons of the heaviest members in the world up till now, always towards increasing, more and more heavier direction is advanced.
For more and more heavier member, mobile system 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.
The most common wheel track technology, for example, for the long larger heavy mail (large box girder) of length and width, obtain fortune steadily, track chassis technique is proper, but grounding pressure is larger, every square reaches 200～500 tons, and track foundation processing and chassis equipment investment are higher.Reach ton when above at construction weight, the quantity of chassis quite more than, track is also more and more heavier, goes out to transport system cost high, wheel track technology is inadaptable.
Air bag goes out mode extremely high economic value.It is that hoisting gasbag is filled in to member bottom (trench) that air bag goes out transportation technique, then inflating and lifting member, after completing, passes through component jacking chock pad, fill in moving gasbag, member is seated on moving gasbag to the technique of then utilizing the tractive force of winch to make air bag rolling drive member to move.By member ground connection ratio, approximately 20 tons of every sq ms, at the bottom of foundation requirement, but are only applicable to the member that grounding pressure is less, aspect ratio is little, and sometimes can not use for prestressed component.
In super heavy member, slide plate is the main flow of occuping market gradually, and a large amount of bridge, caisson, immersed tube have used this technology both at home and abroad.But, this technology of slide plate using at present, because of the effect of surface binded, the maximum quiet friction coefficient that rubs is about 6%, is bordering on 8% after being placed in for a long time original position.In the time that the heavy mail of ten thousand tons of weighing moves, thrust also reaches 800 tons, when port Zhuhai and Macao bridge immersed tube prefabricated goes out to transport, and other facilities such as subsidiary template, heavy nearly 80000 tons while going out to transport, the thrust nargin of considering design, thrust also reaches 6000 tons, and system is huge, investment cost is very high, and in mobile process, the sliding material loss of each working cycle is very large, diversion fee is very high.
In some special engineerings, also occur 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 being less than the member of 10,000 tons.Overweight slide plate pushing tow goes out fortune needs very large jacking force, goes out fortune system quite complicated, and technology is difficult to grasp, somewhat expensive.Air cushion process structure complexity, need to spend huge power, and somewhat expensive requires harshness to environment for use and service conditions, does not utilize popularization.
Be not difficult to find out, prior art is to going out to transport ten thousand tons until the heavy mail of 10 tons also exists certain defect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of method of sliding chassis and going out to transport overweight member, and it can reduce friction drag, extends the service life of sliding material, reduce and pass power and thrust, and process structure is simple, expense is cheap, is beneficial to popularization.
For this reason, the utility model provides following technical scheme:
A kind of slip chassis, comprising:
Slide plate and high-pressure water chamber, described slide plate is frame type member, described high-pressure water chamber is positioned at the frame of described slide plate;
Described slide plate comprises: sliding material and stay bearing plate, and described stay bearing plate is placed in the upper surface of described sliding material; Described sliding material and stay bearing plate are frame type member.
Further, described sliding material is polyfluortetraethylene plate, on described polyfluortetraethylene plate, is provided with water inlet.
Further, described stay bearing plate comprises: the first steel plate, the second steel plate, the first rubber plate, the second rubber plate, and described the first sheet pack is on the first rubber plate, and the first rubber plate is folded in the second steel plate further, and the second rubber plate is folded on described sliding material.
Further, described slip chassis also comprises: water pump and water tank, one end of described water pump is connected in described water tank, and the other end is connected in described duct and communicates with described high-pressure water chamber through the first rubber plate, the second steel plate and the second rubber plate successively by cored screw.
Further, described slip chassis also comprises: by pass valve, and one end of described by pass valve is connected in described water tank, and the other end is connected in the passage between described water pump and opening of the channel.
Further, described slip chassis also comprises: stagnant hauling rope after anti-, for anti-skidding chassis from line slip.
The utility model is by arranging slide plate and high-pressure water chamber, make high-pressure water chamber become a part for friction pair, carry most of weight of overweight member by high-pressure water chamber, the weight that slide plate carries greatly reduces, in the time that overweight member moves, greatly reduce friction drag, reduced passing power and thrust; And the suffered total amount of must carrying of slide plate greatly reduces, and then has extended right service life.And slip chassis provided by the utility model to purchase clothing simple in structure, manufacturing cost is cheap, environment for use and service conditions is had no special requirements simultaneously, is beneficial on a large scale and promotes.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The one slip chassis schematic diagram that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the vertical cross section figure of Fig. 1;
The working state figure of a kind of chassis that slides that Fig. 3 provides for the utility model embodiment.
Drawing reference numeral explanation:
The sliding material of 2-; 22-stay bearing plate; 222-high-pressure water chamber;
1-the first steel plate; 3-the second steel plate; 4-the first rubber plate; 5-the second rubber plate;
6-duct; 7-cored screw;
8-pressure-bearing distribution beam; 9-slip chassis; 10-orbital plane; 11-slideway basis;
12-by pass valve; 13-water pump; 14-water tank; 15-overweight object
Detailed description of the invention
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the utility model embodiment and accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described.It should be noted that, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment
As shown in Figure 1, the one slip chassis that the present embodiment provides, comprising:
Slide plate and high-pressure water chamber 222, described slide plate is frame type member, described high-pressure water chamber 222 is positioned at the frame of described slide plate;
Described slide plate comprises: sliding material 2 and stay bearing plate 22, and described stay bearing plate 22 is placed in the upper surface of described sliding material 2; Described sliding material 2 and stay bearing plate 22 are frame type member.
As preferably, as shown in Figure 2, described sliding material 2 is polyfluortetraethylene plate, on described polyfluortetraethylene plate, is provided with water inlet.As preferably, described stay bearing plate 22 comprises: the first steel plate 1, the second steel plate 3, the first rubber plate 4, the second rubber plate 5, described the first steel plate 1 is folded on the first rubber plate 4, the first rubber plate 4 is folded on the second steel plate 3, the second steel plate 3 is folded on the second rubber plate 5, and the second rubber plate 5 is folded on described sliding material 2.It should be noted that, as preferably, described the first steel plate 1 to the second steel plate 3 is thick, in the present embodiment, the steel plate that preferably 35mm is thick is as the first steel plate 1, and the thick steel plate of 6mm is as the second steel plate 3, it is thick that described the first rubber plate 4 is preferably 10mm, and it is thick that the second rubber plate 5 is preferably 6mm.The object that adopts the first rubber plate 4, the second steel plate 3 and the second rubber plate 5 is mainly for solving the sliding surface of chassis 9 in the time that carrying overweight object slides that slide at orbital plane 10() pressure that brings of unfairness makes the water loss in high-pressure water chamber 222, and also solve the variable thickness of polyfluortetraethylene plate in the time that high-pressure water chamber 222 is set and caused problem simultaneously.
As preferably, described the first steel plate 1 is provided with duct 6.As preferably, described slip chassis 9 also comprises: water pump 13 and water tank 14, one end of described water pump 13 is connected in described water tank 14, and the other end is connected in described duct 6 and communicates with described high-pressure water chamber 222 through the first rubber plate 4, the second steel plate 3 and the second rubber plate 5 successively by cored screw 7.As preferably, described slip chassis 9 also comprises: by pass valve 12, and one end of described by pass valve 12 is connected in described water tank 14, and the other end is connected in the passage between 6 mouthfuls, described water pump 13 and duct.As preferably, described slip chassis 9 also comprises: stagnant hauling rope after anti-, for anti-skidding chassis 9 from line slip.
It should be noted that, under the operation pressure of specifying, the flow of water pump 13 is very little, also seldom overflows orbital plane 10.Even if occur overflowing, the flow of water pump 13 can supplement immediately; As preferably also supplementing by equipment energy-storing device.The water of overflow can pass through by pass valve 12 reflow tank 14 again.As the source abundance of water, can not use by pass valve 12.For preventing in the situation from line slip without traction situation lower slider chassis 9, when longitudinal gradient is larger, should arranges and slip hauling rope after anti-.
The slip chassis 9 that the present embodiment consists of polyfluortetraethylene plate (sliding material 2), stay bearing plate 22, high-pressure water chamber 222 carries overweight member, in the time of the overweight member of carrying, high pressure water is at the interior formation water cushion of high-pressure water chamber 222, water cushion has carried most of weight of overweight member, and what polytetrafluoroethylene vinyl plate and stay bearing plate 22 carried is the sub-fraction weight of overweight member.
It should be noted that, the object that water pump 13, water tank 14, by pass valve 12 is set at this is: in the time packing overweight member, if there is water to overflow high-pressure water chamber 222, described water pump 13 can supplement in time, and the water of overflow reflow tank 14 again.
With an example, the method that adopts described slip chassis 9 to go out to transport overweight member is described below:
As shown in Figure 3, certain engineering access bridge is caisson pier formula structure, and between every two piers, laying 3 precast prestressed case beam 15(is overweight member mentioned above), have 51.Case beam 15 scantling of structure are that 51m(is long) × 2.6m(is wide) × 3.5m(is high), maximum weight is 808t.This case beam 15 is prefabricated in fabrication yard, need to go out to be transported to wharf apron and just can lift by crane installation, in view of case beam 15 constructional features, selects the slip chassis 9 that the present embodiment provides to go out this case beam 15 of fortune.
If monolithic slide plate and orbital plane 10(orbital plane 10 are arranged on slideway basis 11) length of contact be 1.2m, width is 0.6m.Inner chamber (being high-pressure water chamber 222 mentioned above) is long is 0.9m, and wide is 0.32m.The slip chassis 9 that each 2 the present embodiment of every side provide, uses 6 slip chassis 9 altogether.
Corrosion-resistant steel track with the gross area that polyfluortetraethylene plate (i.e. sliding material 2) contacts is:
S=6×（1.2m×0.6m-0.32m×0.9m）=2.6m
2
Polyfluortetraethylene plate contact pressure-bearing:
F=（808t×9.8kN/t）÷2.6m
2≈3.0MPa
Polyfluortetraethylene plate compressive strength is about 10MPa, and the pressure-bearing affluence degree when static is about 3.3 coefficient calculations.
The area of built-in water cavity (being high-pressure water chamber 222 mentioned above) is:
S=6×0.32m×0.9m=1.73m
2
Water cushion (after the interior water-filling of high-pressure water chamber 222, pressurization forms) pressure selection is 3.5MPa, can bear:
F=1.73m
2×3.5MPa=6055kN
Polytetrafluoroethylene compressive strength is about 10MPa, and inside is subject to the dynamic nargin of high pressure water to be about 2.86 times.
When static, whole heavy mail pressure (weight of case beam 15 mentioned above), by the difference of the part of water pressure-bearing with dynamically time, is born by the coefficient of sliding resistance of polytetrafluoroethylene, and its friction force is:
f=μ(808t×9.8kN/t-6055kN)=0.03×540kN=55.9kN
At this moment the average pressuure that polytetrafluoroethylene bears is:
N=(808t×9.8kN/t-6055kN)÷2.6m
2=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 friction coefficient, in 0.006～0.008 left and right, has greatly reduced friction force.
In the time packing this case beam 15, use altogether 6 slip chassis 9, water pump 13 is selected 5MPa pressure, and flow is 36L/min.
Outside skateboard, clamp beveling of the edge 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 suitable rubber plate of modulus of elasticity, ensure that amount of compression is about 2.5mm to the thick rubber plate (comprising the first rubber plate 4 mentioned above and the second rubber plate 5) of 16mm in the time of 3.5MPa.
Embedded 6mm surface of steel plate is nature roughness or beats thick.
Sliding construction
Sliding construction is made up of the case beam 15 that falls, slip chassis 9 three steps of pressurizeing, move forward.
Slip chassis 9 after pressurization, because conversion appears in the distribution of pressure of high-pressure water chamber 222 inner rubber, there is extremely small displacement in the sliding material 2 contacting with orbital plane 10, destroy maximum static friction force, meanwhile, due to the supporting role of hydraulic pressure, only there is partial pressure to be delivered to orbital plane 10 by sliding material 2.Now, with winch or other form push-and-pull heavy mail (being case beam 15), heavy mail produces motion forward.
The utility model is by arranging slide plate and high-pressure water chamber 222, make high-pressure water chamber 222 become a part for friction pair, carry most of weight of overweight member by high-pressure water chamber 222, the weight that slide plate carries greatly reduces, in the time that overweight member moves, greatly reduce friction drag, reduced passing power and thrust; And the suffered total amount of must carrying of slide plate greatly reduces, and then has extended right service life.And slip chassis 9 provided by the utility model to purchase clothing simple in structure, manufacturing cost is cheap, environment for use and service conditions is had no special requirements simultaneously, is beneficial on a large scale and promotes.
The above embodiment has only expressed a kind of embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (7)
1. a slip chassis, is characterized in that, comprising:
Slide plate and high-pressure water chamber, described slide plate is frame type member, described high-pressure water chamber is positioned at the frame of described slide plate;
Described slide plate comprises: sliding material and stay bearing plate, and described stay bearing plate is placed in the upper surface of described sliding material; Described sliding material and stay bearing plate are frame type member.
2. slip chassis according to claim 1, is characterized in that: described sliding material is polyfluortetraethylene plate, on described polyfluortetraethylene plate, is provided with water inlet.
3. slip chassis according to claim 2, it is characterized in that, described stay bearing plate comprises: the first steel plate, the second steel plate, the first rubber plate, the second rubber plate, described the first sheet pack is on the first rubber plate, the first rubber plate is folded on the second steel plate, the second sheet pack is on the second rubber plate, and the second rubber plate is folded on described sliding material.
4. slip chassis according to claim 3, is characterized in that: described the first steel plate is provided with duct.
5. slip chassis according to claim 4, it is characterized in that, also comprise: water pump and water tank, one end of described water pump is connected in described water tank, and the other end is connected in described duct and communicates with described high-pressure water chamber through the first rubber plate, the second steel plate and the second rubber plate successively by cored screw.
6. slip chassis according to claim 5, is characterized in that, also comprises: by pass valve, and one end of described by pass valve is connected in described water tank, and the other end is connected in the passage between described water pump and opening of the channel.
7. slip chassis according to claim 6, is characterized in that, also comprises: stagnant hauling rope after anti-, for anti-skidding chassis from line slip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893115.9U CN203638516U (en) | 2013-12-31 | 2013-12-31 | Sliding trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893115.9U CN203638516U (en) | 2013-12-31 | 2013-12-31 | Sliding trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203638516U true CN203638516U (en) | 2014-06-11 |
Family
ID=50869780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893115.9U Withdrawn - After Issue CN203638516U (en) | 2013-12-31 | 2013-12-31 | Sliding trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203638516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754547A (en) * | 2013-12-31 | 2014-04-30 | 中交第四航务工程局有限公司 | Sliding trolley and method for transporting super-heavy members |
-
2013
- 2013-12-31 CN CN201320893115.9U patent/CN203638516U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754547A (en) * | 2013-12-31 | 2014-04-30 | 中交第四航务工程局有限公司 | Sliding trolley and method for transporting super-heavy members |
| CN103754547B (en) * | 2013-12-31 | 2016-06-08 | 中交第四航务工程局有限公司 | A kind of chassis and go out to transport the method for super-heavy component of sliding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |