CN113356020A - Trailer bridge and erection method thereof - Google Patents
Trailer bridge and erection method thereof Download PDFInfo
- Publication number
- CN113356020A CN113356020A CN202110600201.5A CN202110600201A CN113356020A CN 113356020 A CN113356020 A CN 113356020A CN 202110600201 A CN202110600201 A CN 202110600201A CN 113356020 A CN113356020 A CN 113356020A
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- bridge
- span
- oil cylinder
- unfolding
- erection
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/127—Portable or sectional bridges combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a trailer bridge and an erection method thereof, wherein the trailer bridge comprises: the bridge erecting vehicle comprises a bridge erecting vehicle, a bridge span and a power device; the bridge span is lapped at the tail part of the bridge girder erection vehicle through the erection device, and the head part of the bridge girder erection vehicle is provided with the power device; the power device provides power for the erection device; the erection method of the trailer bridge can carry out the maneuver of the self-contained highway to the bridge construction point by using the tractor, thereby quickly erecting the emergency rush-to-pass bridge; during training demonstration, a matched counterweight device is adopted, a tractor is not needed, and the training cost can be effectively reduced.
Description
Technical Field
The invention relates to the technical field of combat readiness bridges, in particular to a trailer bridge and an erection method thereof.
Background
The trailer bridge is used as a product between a mechanical bridge and a fully-manually assembled combat readiness steel bridge, the two technologies are generally used for reference, the existing combat readiness steel bridge components are scattered, manual assembly is adopted, and the erection speed of the combat readiness steel bridge is low, the manual labor intensity is high, and the number of workers is large under emergency conditions such as wartime, emergency rescue and disaster relief.
The existing mechanical bridge is modified on a second-class automobile chassis or an armored vehicle, and the mechanical degree is high, so that the problems of complex system, inconvenient maintenance, high storage requirement, high cost and the like of the existing mechanical bridge are caused; and the problem of overrun of the self-contained highway during maneuvering is common.
Disclosure of Invention
In view of the above, the invention provides a trailer bridge and an erection method thereof, the trailer bridge has the characteristics of high mechanized operation speed, low labor intensity, few working persons, simple operation, convenient storage, easy maintenance, lower cost and the like, and simultaneously, the maneuvering requirement of a whole road is met; the erection method of the trailer bridge can carry out the maneuver of the self-contained highway to the bridge construction point by using the tractor, thereby quickly erecting the emergency rush-to-pass bridge; during training demonstration, a matched counterweight device is adopted, a tractor is not needed, and the training cost can be effectively reduced.
The technical scheme of the invention is as follows: a trailer bridge, comprising: the bridge erecting vehicle comprises a bridge erecting vehicle, a bridge span and a power device; the bridge span is lapped at the tail part of the bridge girder erection vehicle through the erection device, and the head part of the bridge girder erection vehicle is provided with the power device; the power device provides power for the erection device.
Preferably, in the initial state, the bridge span is folded on itself on the bridge girder erection vehicle.
Preferably, the method further comprises the following steps: a counterweight device; the counterweight device is detachably connected with the bridge girder erection vehicle.
Preferably, the bridge girder erection vehicle comprises: the trailer chassis is supported on the ground; the auxiliary frame is fixed at the tail part of the trailer chassis and is rotationally connected with the erection device.
Preferably, the bridge span comprises: the bridge comprises bridge sections and a bridge unfolding beam, wherein more than two bridge sections are detachably and rotatably connected through the bridge unfolding beam; wherein, the bridge span is used for connecting the erection device and the bridge span.
Preferably, the bridge span further comprises: the widened part is rotatably connected to the two transverse sides of the bridge section; when the bridge is built, the widened part is unfolded relative to the bridge section and is fixed on the bridge section; when loading, the adjacent bridge sections are folded, and the widened parts are folded and fixed on the bridge sections.
Preferably, the mounting device comprises: the device comprises a roll-over stand, a roll-over oil cylinder, a bridge expansion oil cylinder, a leg standing oil cylinder, a hydraulic winch and a bridge expansion cable;
one end of the roll-over stand is respectively and rotatably connected with one end of the shore bridge section and the auxiliary frame, and the other end of the roll-over stand is detachably connected with the other end of the shore bridge section through a hydraulic winch and a winch cable on the hydraulic winch; the turnover oil cylinder is connected between the middle part of the turnover frame and the auxiliary frame, the bridge unfolding oil cylinder, the leg standing oil cylinder and the hydraulic winch are arranged on the turnover frame, and when the turnover frame is unfolded to be vertical to the ground, the leg standing oil cylinder can extend out and vertically abut against the ground; the bridge unfolding cable bypasses the roll-over stand, one end of the bridge unfolding cable is connected with the bridge unfolding oil cylinder, and the other end of the bridge unfolding cable is detachably connected with the bridge unfolding; the turnover frame is provided with a switchable limiting device, and the bridge span can rotate around the limiting device by switching on the limiting device; and closing the limiting device to enable the bridge span to be separated from the roll-over stand.
Preferably, the bridge girder erection vehicle comprises: the trailer chassis is supported on the ground; the auxiliary frame is fixed at the tail part of the trailer chassis and is rotationally connected with the erection device.
Preferably, the bridge span comprises: the bridge comprises bridge sections and a bridge unfolding beam, wherein more than two bridge sections are detachably and rotatably connected through the bridge unfolding beam; the erection device includes: the device comprises a roll-over stand, a roll-over oil cylinder, a bridge expansion oil cylinder, a leg standing oil cylinder, a hydraulic winch and a bridge expansion cable;
one end of the roll-over stand is respectively and rotatably connected with one end of the shore bridge section and the auxiliary frame, and the other end of the roll-over stand is detachably connected with the other end of the shore bridge section through a hydraulic winch and a winch cable on the hydraulic winch; the turnover oil cylinder is connected between the middle part of the turnover frame and the auxiliary frame, the bridge unfolding oil cylinder, the leg standing oil cylinder and the hydraulic winch are arranged on the turnover frame, and when the turnover frame is unfolded to be vertical to the ground, the leg standing oil cylinder can extend out and vertically abut against the ground; the bridge unfolding cable bypasses the roll-over stand, one end of the bridge unfolding cable is connected with the bridge unfolding oil cylinder, and the other end of the bridge unfolding cable is detachably connected with the bridge unfolding; the turnover frame is provided with a switchable limiting device, and the bridge span can rotate around the limiting device by switching on the limiting device; and closing the limiting device to enable the bridge span to be separated from the roll-over stand.
The method for erecting the trailing axle comprises the following steps:
the method comprises the following steps: stopping the trailer axle at an axle erecting point;
step two: starting a power device to enable the bridge girder erection vehicle to land;
step three: the turnover oil cylinder extends out until the turnover frame is vertical to the ground;
step four: the leg standing oil cylinder extends out of the ground vertically, props against the ground and is leveled relative to the ground;
step five: starting a limiting device, and alternately controlling the expansion of the bridge expansion oil cylinder and the retraction of the winch cable to alternately expand the bridge span by a certain angle and put down by a certain angle until the bridge span falls on the opposite bank;
step six: transferring the winch cable to the end of the offshore bridge span;
step seven: closing the limiting device, and removing the limit of the end part of the shore bridge span to separate the erection device from the bridge span;
step eight: paying out a winch cable to enable the end of the shore bridge span to land;
step nine: the widening part is unfolded, meanwhile, the erecting device is retracted, the power device is closed, and the erecting operation is completed.
Has the advantages that:
1. the existing combat readiness steel bridge is mostly erected by manual assembly, the trailer bridge provided by the invention adopts a mechanized main erection mode and a manual auxiliary erection mode, has the characteristics of high mechanized operation speed, low labor intensity, few operation persons, simplicity in operation, convenience in storage, easiness in maintenance, lower cost and the like, and simultaneously meets the maneuvering requirement of the whole highway.
2. The bridge span in the trailing axle provided by the invention can be folded on the bridge girder erection vehicle, so that the space occupancy of the trailing axle in a non-working state can be obviously reduced.
3. The mode that the counterweight device in the trailer bridge is detachably connected with the bridge erecting vehicle provided by the invention can facilitate the switching between the tractor and the counterweight device, when the trailer bridge needs to be moved to a set erection point, the tractor can be temporarily hired to pull the trailer bridge to the preset erection point, and after the trailer bridge reaches the set erection point, the tractor is withdrawn and the counterweight device is replaced, so that the longitudinal stable moment of the bridge erecting vehicle can be effectively increased, the overturning moment generated in the bridge span erection process can be balanced, and the bridge span can be prevented from tipping over during the bridge span erection.
4. The design of the trailer chassis and the auxiliary frame in the bridge girder erection vehicle can effectively improve the degree of mechanical matching between the bridge girder erection vehicle and the erection device on the basis of simple and reliable structure.
5. The specific design of the bridge span can facilitate the folding of the bridge span, thereby being beneficial to obviously reducing the volume of the whole trailer bridge in a non-working state and facilitating efficient mechanical matching with the erection device.
6. The invention also designs the widened part in the bridge span, and the connection between the widened part and the bridge section is convenient for retraction and use, thereby not only effectively improving the use area of the bridge span in a working state, but also reducing the occupied volume of the trailer bridge in a non-working state, and being beneficial to the maneuvering of a whole road.
7. The specific design of the erection device can accurately and efficiently complete the actions of overturning, unfolding, putting down, dropping the bridge and the like during bridge span erection and the reverse actions during withdrawal, thereby obviously improving the speed of mechanized operation and reducing the labor intensity of the mechanized operation.
8. The erecting method can carry out the maneuver of the self-contained highway to the bridge erecting point by using the tractor, thereby quickly erecting the emergency rush-to-pass bridge; during training demonstration, a matched counterweight device is adopted, a tractor is not needed, and the training cost can be effectively reduced.
Drawings
Fig. 1 is a schematic illustration of a trailer bridge self-contained highway maneuver in an embodiment.
Fig. 2 is a self-contained schematic view of a trailer bridge without a towing vehicle, with a counterweight, in an embodiment.
FIG. 3 is a schematic structural diagram of a bridge span in an embodiment.
Fig. 4 is a schematic view illustrating a process of installing a trailing axle in the embodiment shown in fig. 11.
The automatic lifting device comprises a tractor 1, a bridge erecting vehicle 2, a bridge erecting device 3, a bridge span 4, a power device 5, a counterweight device 6, a widening section 7, a bridge section 8, a bridge unfolding beam 9, a trailer chassis 10, an auxiliary frame 11, a front supporting leg 12, a rear supporting leg 13, a turnover frame 14, a turnover cylinder 15, a bridge unfolding cylinder 16, a leg standing cylinder 17, a hydraulic winch 18, a bridge unfolding cable 19, a bridge unfolding cable 20 and a limiting device 21.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
Example 1:
the embodiment provides a trailer bridge, possesses that mechanized operation is fast and intensity of labour is low, and the operation number is few and easy operation, and the storage is convenient, easy to maintain and characteristics such as the cost is lower, simultaneously, satisfies the mobile requirement of full-scale highway.
As shown in fig. 1 and 2, the trailer bridge comprises: the bridge girder erection device comprises a bridge girder erection vehicle 2, an erection device 3, a bridge span 4, a power device 5 and a counterweight device 6;
one part of the erection device 3 is rotatably connected with the middle rear part of the bridge girder erection vehicle 2, the other part of the erection device is detachably and rotatably connected with the bridge span 4, and the erection device 3 realizes vertical limit and longitudinal and transverse limit in a horizontal plane on the bridge span 4, wherein in an initial state, the bridge span 4 is folded on the bridge girder erection vehicle 2 through the erection device 3, when in erection, the erection device 3 drives the bridge span 4 to be unfolded relative to the bridge girder erection vehicle 2, and when in withdrawal, the erection device 3 drives the bridge span 4 to be folded relative to the bridge girder erection vehicle 2;
the upper end of the head part of the bridge girder erection vehicle 2 is fixed with a power device 5, and the lower end is detachably connected with a counterweight device 6; the power device 5 is arranged on the bridge girder erection vehicle 2 and provides power for the erection device 3 during erection and retraction operations; the counterweight device 6 is used for replacing the tractor 1 to add counterweight, so as to increase the longitudinal stability moment of the bridge erecting vehicle 2, balance the overturning moment generated in the process of erecting the bridge span 4 and avoid overturning of the bridge span 4 during erection.
In this embodiment, the bridge girder erection vehicle 2 includes: the trailer chassis 10 is a carrying and erecting platform of the bridge span 4, and is supported on the ground; the auxiliary frame 11 is fixed at the middle rear part of the trailer chassis 10 and is rotationally connected with the erection device 3; the trailer chassis 10 is provided with a front leg 12 and a rear leg 13 for stable support of the trailer chassis 10.
In the embodiment, the bridge span 4 is a foldable and widened structure consisting of a widened part 7, bridge sections 8 and an expansion bridge 9, more than two bridge sections 8 are detachably and rotatably connected through the expansion bridge 9, and the widened part 7 is rotatably connected to the two transverse sides of the bridge sections 8; when bridging, the widened parts 7 are unfolded relative to the bridge sections 8, and after the widened parts are unfolded, as shown in fig. 3, the widened parts 7 on the two transverse sides of the bridge sections 8 are unfolded relative to the two transverse sides of the bridge sections 8 and are fixed on the bridge sections 8; when loading, the adjacent bridge sections 8 are folded together, and the widened parts 7 are folded and fixed on the bridge sections 8 so as to meet the maneuvering requirements of the whole loading highway specified by the national standard; the bridge span 9 connects the erection device 3 with the bridge span 4, so that the bridge span 4 can be erected and retracted in the forward and reverse directions.
In this embodiment, the mounting device 3 includes: the device comprises a roll-over stand 14, a roll-over oil cylinder 15, a bridge-expanding oil cylinder 16, a leg-standing oil cylinder 17, a hydraulic winch 18 and a bridge-expanding cable 19; the overturning oil cylinder 15, the bridge-expanding oil cylinder 16, the leg-standing oil cylinder 17 and the hydraulic winch 18 form a hydraulic assembly, and the overturning frame 14 completes the actions of overturning, expanding, lowering, falling and the like when the bridge span 4 is erected and the reverse action when the bridge span is retracted under the cooperation of the hydraulic assembly and a bridge-expanding cable 19;
specifically, the method comprises the following steps: one end of the roll-over stand 14 is respectively and rotatably connected with one end of the I-shore bridge section 8 of the bridge span 4 and the auxiliary frame 11, and the other end of the roll-over stand 14 is detachably connected with the other end of the I-shore bridge section 8 of the bridge span 4 through a hydraulic winch 18 and a winch cable 20 on the hydraulic winch 18; the overturning oil cylinder 15 is connected between the middle part of the overturning frame 14 and the auxiliary frame 11, the bridge unfolding oil cylinder 16, the leg standing oil cylinder 17 and the hydraulic winch 18 are installed on the overturning frame 14, and when the overturning frame 14 is unfolded to be vertical to the ground, the leg standing oil cylinder 17 can extend out and vertically abut against the ground; the bridge unfolding cable 19 bypasses the roll-over stand 14, one end of the bridge unfolding cable is connected with the bridge unfolding cylinder 16, and the other end of the bridge unfolding cable is detachably connected with the bridge unfolding beam 9; a winch cable 20 on the hydraulic winch 18 bypasses the roll-over stand 14; the turning frame 14 is provided with a switchable limiting device 21, and the limiting device 21 is switched on to enable the bridge span 4 to rotate around the limiting device 21; the bridge span 4 can be disengaged from the roll-over stand 14 by closing the stop means 21.
In this embodiment, the power unit 5 is mounted on the upper front end of the trailer chassis 10.
Example 2:
the embodiment provides an erection method of a trailer bridge, which can be used for carrying out self-contained highway maneuvering to a bridge construction point by virtue of a tractor, thereby quickly erecting an emergency rush-to-pass bridge; during training demonstration, a matched counterweight device is adopted, a tractor is not needed, and the training cost can be effectively reduced; based on the trailing axle provided in embodiment 1, the erection method comprises the following steps:
the method comprises the following steps: stopping the trailer axle at an axle erecting point, and connecting a counterweight device 6 to the lower part of the front end of the trailer chassis 10 as shown in figure 2;
step two: as shown in fig. 4, the power device 5 is started, the front leg 12 and the rear leg 13 of the bridge girder 2 are lowered, and the bridge girder is supported by the front leg 12 and the rear leg 13;
step three: as shown in fig. 5, the roll-over cylinder 15 is fully extended, and at this time, the roll-over stand 14 is vertical to the ground;
step four: as shown in fig. 6, the leg standing cylinder 17 extends out vertically to the ground, butts against the ground and is leveled relative to the ground;
step five: starting a limiting device 21 on the roll-over stand 14, and alternately controlling the expansion of the bridge-expanding oil cylinder 16 and the retraction of the winch cable 20 as shown in fig. 7-8, so that the bridge span 4 is alternately expanded by a certain angle and put down by a certain angle until the bridge span 4 reliably lands on the opposite bank;
step six: as shown in fig. 9, the winch cable 20 is transferred to the end of my shore bridge span 4;
step seven: closing a limiting device 21 on the roll-over stand 14, releasing the limit of the end part of the shore bridge span 4, separating the bridge span 4 from the roll-over stand 14, and completing the separation of the erection device 3 and the bridge span 4;
step eight: as shown in fig. 10, the winch cable 20 is paid out to make the end of the shore bridge span 4 land;
step nine: as shown in fig. 3, the widening portion 7 is expanded, and at the same time, as shown in fig. 11, the erection device 3, the front leg 12, and the rear leg 13 are retracted, and the power unit 5 is closed, thereby completing the erection operation.
The method for withdrawing the trailer bridge is opposite to the method for erecting the trailer bridge.
In this embodiment, as shown in fig. 1, the trailer bridge in the first step can be mechanically assembled on the road by using the tractor 1; wherein the tractor 1 is arranged at the front end of a trailer chassis 10.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A trailer bridge, comprising: the bridge girder erection device comprises a bridge girder erection vehicle (2), an erection device (3), a bridge span (4) and a power device (5); the bridge span (4) is lapped at the tail part of the bridge girder erection vehicle (2) through the erection device (3), and the head part of the bridge girder erection vehicle (2) is provided with a power device (5); wherein, the erection device (3) is rotatably connected with the bridge erecting vehicle (2) and detachably rotatably connected with the bridge span (4), and the power device (5) provides power for the erection device (3).
2. The trailer bridge of claim 1, wherein the bridge span (4) is folded on itself over the bridge girder (2) in an initial state.
3. The trailer bridge of claim 1 or 2, further comprising: a counterweight device (6); the counterweight device (6) is detachably connected with the bridge erecting vehicle (2).
4. The trailer bridge of claim 1 or 2, wherein the bridge girder (2) comprises: the trailer chassis (10) and the auxiliary frame (11), wherein the trailer chassis (10) is supported on the ground; the auxiliary frame (11) is fixed at the tail part of the trailer chassis (10) and is rotationally connected with the erection device (3).
5. Trailing axle according to claim 4, characterized in that the axle span (4) comprises: the bridge sections (8) are detachably and rotatably connected with the bridge unfolding beam (9), and more than two bridge sections (8) are detachably and rotatably connected with the bridge unfolding beam (9); wherein, the bridge-expanding beam (9) is used for connecting the erection device (3) and the bridge span (4).
6. Trailing axle according to claim 5, characterized in that the axle span (4) further comprises: the widened part (7), the widened part (7) is rotatably connected to the two transverse sides of the bridge section (8); when bridging, the widening part (7) is unfolded relative to the bridge section (8) and fixed on the bridge section (8); when loading, the adjacent bridge sections (8) are folded, and the widened parts (7) are folded and fixed on the bridge sections (8).
7. Trailing axle according to claim 5 or 6, characterized in that the mounting device (3) comprises: the device comprises a roll-over frame (14), a roll-over oil cylinder (15), a bridge-unfolding oil cylinder (16), a leg-standing oil cylinder (17), a hydraulic winch (18) and a bridge-unfolding cable (19);
one end of the roll-over stand (14) is respectively and rotatably connected to one end of the shore bridge section (8) and the auxiliary frame (11), and the other end of the roll-over stand (14) is detachably connected with the other end of the shore bridge section (8) through a hydraulic winch (18) and a winch cable (20) on the hydraulic winch (18); the turnover oil cylinder (15) is connected between the middle part of the turnover frame (14) and the auxiliary frame (11), the bridge unfolding oil cylinder (16), the leg standing oil cylinder (17) and the hydraulic winch (18) are installed on the turnover frame (14), and when the turnover frame (14) is unfolded to be vertical to the ground, the leg standing oil cylinder (17) can extend out and vertically abut against the ground; the bridge unfolding cable (19) bypasses the roll-over stand (14), one end of the bridge unfolding cable is connected with the bridge unfolding cylinder (16), and the other end of the bridge unfolding cable is detachably connected with the bridge unfolding beam (9); the turning frame (14) is provided with a switchable limiting device (21), and the bridge span (4) can rotate around the limiting device (21) by opening the limiting device (21); the limiting device (21) is closed, and the bridge span (4) can be separated from the roll-over stand (14).
8. Trailing axle according to claim 3, characterized in that the axle-erecting vehicle (2) comprises: the trailer chassis (10) and the auxiliary frame (11), wherein the trailer chassis (10) is supported on the ground; the auxiliary frame (11) is fixed at the tail part of the trailer chassis (10) and is rotationally connected with the erection device (3).
9. Trailing axle according to claim 8, characterized in that the axle span (4) comprises: the bridge sections (8) are detachably and rotatably connected with the bridge unfolding beam (9), and more than two bridge sections (8) are detachably and rotatably connected with the bridge unfolding beam (9); the mounting device (3) comprises: the device comprises a roll-over frame (14), a roll-over oil cylinder (15), a bridge-unfolding oil cylinder (16), a leg-standing oil cylinder (17), a hydraulic winch (18) and a bridge-unfolding cable (19);
one end of the roll-over stand (14) is respectively and rotatably connected to one end of the shore bridge section (8) and the auxiliary frame (11), and the other end of the roll-over stand (14) is detachably connected with the other end of the shore bridge section (8) through a hydraulic winch (18) and a winch cable (20) on the hydraulic winch (18); the turnover oil cylinder (15) is connected between the middle part of the turnover frame (14) and the auxiliary frame (11), the bridge unfolding oil cylinder (16), the leg standing oil cylinder (17) and the hydraulic winch (18) are installed on the turnover frame (14), and when the turnover frame (14) is unfolded to be vertical to the ground, the leg standing oil cylinder (17) can extend out and vertically abut against the ground; the bridge unfolding cable (19) bypasses the roll-over stand (14), one end of the bridge unfolding cable is connected with the bridge unfolding cylinder (16), and the other end of the bridge unfolding cable is detachably connected with the bridge unfolding beam (9); the turning frame (14) is provided with a switchable limiting device (21), and the bridge span (4) can rotate around the limiting device (21) by opening the limiting device (21); the limiting device (21) is closed, and the bridge span (4) can be separated from the roll-over stand (14).
10. A method of erecting a trailer axle using a trailer axle according to claim 7, comprising the steps of:
the method comprises the following steps: stopping the trailer axle at an axle erecting point;
step two: starting the power device (5) to lead the bridge erecting vehicle (2) to land;
step three: the overturning oil cylinder (15) extends out until the overturning frame (14) is vertical to the ground;
step four: the leg standing oil cylinder (17) extends out vertical to the ground, butts against the ground and is leveled relative to the ground;
step five: opening a limiting device (21), and alternately controlling the expansion of the bridge expansion oil cylinder (16) and the retraction of the winch cable (20) to alternately expand the bridge span (4) for a certain angle and put down for a certain angle until the bridge span (4) falls on the opposite bank;
step six: transferring the winch cable (20) to the end of the shore bridge span (4);
step seven: closing the limiting device (21), and releasing the limit of the end part of the bridge span (4) on the bank of China to separate the erection device (3) from the bridge span (4);
step eight: paying out a winch cable (20) to enable the end part of the shore bridge span (4) to land;
step nine: the widening part (7) is unfolded, at the same time, the erection device (3) is retracted, the power device (5) is closed, and the erection operation is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110600201.5A CN113356020A (en) | 2021-05-31 | 2021-05-31 | Trailer bridge and erection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110600201.5A CN113356020A (en) | 2021-05-31 | 2021-05-31 | Trailer bridge and erection method thereof |
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| CN113356020A true CN113356020A (en) | 2021-09-07 |
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| CN202110600201.5A Pending CN113356020A (en) | 2021-05-31 | 2021-05-31 | Trailer bridge and erection method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411525A (en) * | 2021-12-31 | 2022-04-29 | 湖南五新模板有限公司 | Large-span inverted arch construction stepping hydraulic trestle |
| CN114457680A (en) * | 2021-12-18 | 2022-05-10 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Counterweight system for trailer mechanized bridge and use method thereof |
| CN114457680B (en) * | 2021-12-18 | 2024-04-26 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Counterweight system for trailer mechanized bridge and use method thereof |
-
2021
- 2021-05-31 CN CN202110600201.5A patent/CN113356020A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457680A (en) * | 2021-12-18 | 2022-05-10 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Counterweight system for trailer mechanized bridge and use method thereof |
| CN114457680B (en) * | 2021-12-18 | 2024-04-26 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Counterweight system for trailer mechanized bridge and use method thereof |
| CN114411525A (en) * | 2021-12-31 | 2022-04-29 | 湖南五新模板有限公司 | Large-span inverted arch construction stepping hydraulic trestle |
| CN114411525B (en) * | 2021-12-31 | 2024-04-30 | 湖南五新模板有限公司 | Large-span inverted arch construction stepping hydraulic trestle |
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