CN112695608A - Self-balancing link mechanism for building telescopic bridge - Google Patents
Self-balancing link mechanism for building telescopic bridgeDownload PDFInfo
- Publication number
- CN112695608A CN112695608ACN202011631476.7ACN202011631476ACN112695608ACN 112695608 ACN112695608 ACN 112695608ACN 202011631476 ACN202011631476 ACN 202011631476ACN 112695608 ACN112695608 ACN 112695608A
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- connecting rod
- link mechanism
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- telescopic
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- 229910000831SteelInorganic materials0.000claimsdescription12
- 239000010959steelSubstances0.000claimsdescription12
- 230000008602contractionEffects0.000description4
- 230000005484gravityEffects0.000description3
- 238000012423maintenanceMethods0.000description2
- 238000013459approachMethods0.000description1
- 230000009286beneficial effectEffects0.000description1
- 238000006243chemical reactionMethods0.000description1
- 238000010276constructionMethods0.000description1
- 230000000694effectsEffects0.000description1
- 238000004519manufacturing processMethods0.000description1
- 239000000725suspensionSubstances0.000description1
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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
- E01D15/10—Travelling bridges, i.e. roller bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Translated fromChinese
Description
Technical Field
The invention relates to the technical field of telescopic bridge construction, in particular to a self-balancing connecting rod mechanism for constructing a telescopic bridge.
Background
A movable bridge is a type of bridge that has dynamic moving parts that can be used to change the shape of the bridge, usually in order to allow a ship to pass through it smoothly. There are many types of movable bridges, which differ in the manner of conversion. The most popular types are suspension bridges or small bridges, others are telescopic bridges, swing bridges, tilt bridges, vertical lift bridges, transport bridges, etc.
For the design of the telescopic bridge, the key component is a telescopic mechanism for realizing telescopic action. At present, but extending structure usually has only limited several, and the most common is scissors fork structure "X" shape structure articulated in middle part promptly, realizes the flexible purpose of structure through the angle between each part in the adjustment "X" shape structure, and the structure that often needs to promote is big more, and the driving force that needs is just big more.
Disclosure of Invention
The invention provides a self-balancing link mechanism for constructing a telescopic bridge, which can realize telescopic effect, has higher telescopic efficiency than a traditional telescopic structure, has self-balancing property and can push the structure to extend and retract only by small force.
In order to achieve the purpose, the invention adopts the following technical scheme:
a self-balancing link mechanism for constructing a telescopic bridge comprises a link mechanism, a platform and a counterweight device; the connecting rod mechanism consists of a connecting frame, a connecting rod I, a connecting rod II, a connecting rod III and an upright post; the connecting frame comprises a first connecting frame and a second connecting frame; the first connecting rod comprises a first connecting rod A, a first connecting rod B and a first connecting rod C; the second connecting rod comprises a second connecting rod A and a second connecting rod B; the third connecting rod comprises a third connecting rod A, a third connecting rod B and a third connecting rod C; the top end of the upright post is hinged with one end of a first connecting rod C, the other end of the first connecting rod C is hinged with one end of a first connecting rod B, the other end of the first connecting rod B is hinged with one end of a first connecting rod A, the other end of the first connecting rod A is hinged with one end of a first connecting frame, and the other end of the first connecting frame is simultaneously hinged with one end of a second connecting frame and one end of a second connecting rod A; the other end of the connecting frame II is hinged with one end of a connecting rod III A, and the other end of the connecting rod III A is hinged with one end of a connecting rod III B and one end of a connecting rod III C at the same time; the other end of the third connecting rod B is hinged with the bottom end of the upright post, and the other end of the third connecting rod C is hinged with the first connecting rod C; the other end of the second connecting rod A is hinged with one end of the second connecting rod B, and the other end of the second connecting rod B is hinged with the first connecting rod C; a distance is reserved between a hinge point of the second connecting rod B and the first connecting rod C and a hinge point of the third connecting rod C and the first connecting rod C, and the hinge point of the third connecting rod C and the first connecting rod C is closer to the upright; the upright post is vertically arranged on the platform; the counterweight device is arranged on the platform and can synchronously move along the telescopic direction of the link mechanism when the link mechanism is telescopic.
All hinged points in the link mechanism are hinged through hinged pieces.
The hinged part consists of a double-end screw rod, a nut and a washer; two ends of the double-end screw rod respectively penetrate through the corresponding connecting parts and then are locked through nuts, and gaskets are arranged between the nuts and the corresponding connecting parts.
The stand is the channel steel component that the cross section is "[" shape to the notch sets up towards link one end.
The first connecting frame and the second connecting frame are frame-type steel members consisting of side plates and connecting plates; 2 side plates are arranged in parallel and connected through a connecting plate; the number of the first connecting rod A, the number of the first connecting rod B, the number of the first connecting rod C, the number of the second connecting rod A, the number of the second connecting rod B, the number of the third connecting rod A, the number of the third connecting rod B and the number of the third connecting rod C are 2, and the connecting rods are symmetrically arranged relative to the center of the connecting frame.
The first connecting rod A, the first connecting rod B, the first connecting rod C, the second connecting rod A, the second connecting rod B, the third connecting rod A, the third connecting rod B and the third connecting rod C are all made of steel plates.
The platform is a steel platform or a concrete platform, the width of the platform is wider than the widths of the upright posts and the counterweight devices, and the length of the platform is longer than the moving distance of the counterweight devices.
And the moving direction and the moving distance of the counterweight device and the telescopic direction and the telescopic length of the link mechanism are controlled in an interlocking manner.
Compared with the prior art, the invention has the beneficial effects that:
1) the upright posts are connected with the connecting frame through a first connecting rod, a second connecting rod and a third connecting rod, and all connecting parts act simultaneously when the mechanism is subjected to external force, namely stretch simultaneously and contract simultaneously;
2) the self-balancing type telescopic structure has a self-balancing characteristic, can realize the extension and retraction of the whole structure only by applying a small force, and has higher telescopic efficiency than the traditional X-shaped telescopic structure with hinged middle part;
3) when the connecting rod mechanism contracts, the counterweight device synchronously moves towards the direction close to the stand column, when the connecting rod mechanism extends, the counterweight device synchronously moves towards the direction far away from the stand column, and the counterweight device balances the gravity center offset generated by the stretching of the connecting rod mechanism, so that the overall stability of the connecting rod mechanism during stretching is ensured.
4) The connecting structure has the advantages of few components, high connecting strength, low manufacturing cost, wide application, strong stability, high safety and simple maintenance.
Drawings
Fig. 1 is a schematic perspective view (in a state of being unfolded to a maximum length) of a self-balancing linkage mechanism for constructing a telescopic bridge according to the present invention.
Fig. 2a is a front view of fig. 1.
Fig. 2b is a side view of fig. 1.
Fig. 2c is a top view of fig. 1.
Fig. 3 is a schematic perspective view (contracted to a minimum length) of a self-balancing linkage mechanism for constructing a telescopic bridge according to the present invention.
Fig. 4a is a front view of fig. 3.
Fig. 4b is a side view of fig. 3.
Fig. 4c is a top view of fig. 3.
Fig. 5 is a three-dimensional schematic view (a state of being unfolded to a half length) of a self-balancing linkage mechanism for constructing a telescopic bridge according to the present invention.
Fig. 6a is a front view of fig. 5.
Fig. 6b is a side view of fig. 5.
Fig. 6c is a top view of fig. 5.
In the figure: 1. connecting frame I2, connecting frame II 3, connecting rod I A4, connecting rod I B5, connecting rod I C6, connecting rod II A7, connecting rod II B8, connecting rod III A9, connecting rod III B10, connecting rod III C11, hingepart 12,upright post 13,counterweight device 14 and platform
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1-4, the self-balancing link mechanism for constructing a telescopic bridge according to the present invention comprises a link mechanism, a platform and a counterweight device; the connecting rod mechanism consists of a connecting frame, a connecting rod I, a connecting rod II, a connecting rod III and anupright post 12; the connecting frame comprises a first connectingframe 1 and a second connectingframe 2; the first connecting rod comprises a first connecting rod A3, a first connecting rod B4 and a first connecting rod C5; the second connecting rod comprises a second connecting rod A6 and a second connecting rod B7; the third connecting rod comprises a third connecting rod A8, a third connecting rod B9 and a third connecting rod C10; the top end of theupright post 12 is hinged with one end of a first connecting rod C5, the other end of the first connecting rod C5 is hinged with one end of a first connecting rod B4, the other end of the first connecting rod B4 is hinged with one end of a first connecting rod A3, the other end of the first connecting rod A3 is hinged with one end of a first connectingframe 1, and the other end of the first connectingframe 1 is hinged with one end of a second connectingframe 2 and one end of a second connecting rod A6; the other end of the connecting frame II 2 is hinged with one end of a connecting rod III A8, and the other end of the connecting rod III A8 is hinged with one end of a connecting rod III B9 and one end of a connecting rod III C10 at the same time; the other end of the third connecting rod B9 is hinged with the bottom end of theupright post 12, and the other end of the third connecting rod C10 is hinged with the first connecting rod C5; the other end of the second connecting rod A6 is hinged with one end of a second connecting rod B7, and the other end of the second connecting rod B7 is hinged with a first connecting rod C5; the hinge point of the second connecting rod B7 and the first connecting rod C5 and the hinge point of the third connecting rod C10 and the first connecting rod C5 are separated by a certain distance, and the hinge point of the third connecting rod C10 and the first connecting rod C5 is closer to the upright 12; theupright post 12 is vertically arranged on theplatform 14; thecounterweight device 13 is provided on theplatform 14 and can move synchronously in the link mechanism telescoping direction when the link mechanism telescopes.
All hinge points in the linkage mechanism are hinged by ahinge 11.
The hingedpart 11 consists of a double-end screw rod, a nut and a washer; two ends of the double-end screw rod respectively penetrate through the corresponding connecting parts and then are locked through nuts, and gaskets are arranged between the nuts and the corresponding connecting parts.
Theupright post 12 is a channel-shaped steel member having a "[" shape in cross section, and the notch is provided toward one end of the link.
The first connectingframe 1 and the second connectingframe 2 are frame-type steel members consisting of side plates and connecting plates; 2 side plates are arranged in parallel and connected through a connecting plate; the first connecting rod A3, the first connecting rod B4, the first connecting rod C5, the second connecting rod A6, the second connecting rod B7, the third connecting rod A8, the third connecting rod B9 and the third connecting rod C10 are all 2 and are symmetrically arranged relative to the center of the connecting frame.
The first connecting rod A3, the first connecting rod B4, the first connecting rod C5, the second connecting rod A6, the second connecting rod B7, the third connecting rod A8, the third connecting rod B9 and the third connecting rod C10 are all made of steel plates.
Theplatform 14 is a steel platform or a concrete platform, the width of theplatform 14 is wider than the widths of theupright post 12 and thecounterweight device 13, and the length of theplatform 14 is longer than the moving distance of thecounterweight device 13.
The moving direction and the moving distance of thecounterweight device 13 are interlocked with the telescopic direction and the telescopic length of the link mechanism.
The self-balancing connecting rod mechanism for building the telescopic bridge changes the traditional X-shaped telescopic structure with hinged middle parts, increases the supporting part and improves the connecting mode, the structural form and the variety of the connecting rods. The self-balancing linkage mechanism comprises a supporting part, a connecting rod part and a counterweight part. The supporting part comprises an upright post and a platform, and the upright post is fixed on the platform and used for supporting the connecting rod mechanism. The connecting part comprises a hinge part for connecting the parts of the connecting rod part with each other and connecting the connecting rod part with the supporting part; the connecting rod part comprises four connecting parts, namely a connecting frame, a connecting rod I, a connecting rod II and a connecting rod III, and the inner ends of the 2 connecting frames are hinged and connected with the connecting rod part together; the first connecting rod C and the third connecting rod B which are connected with the upright post form a first group of cross structures, and the first connecting rod A, the second connecting rod A and the third connecting rod A which are connected with the connecting frame form a first group of parallel structures; the first connecting rod B, the second connecting rod B and the third connecting rod C form a second group of parallel structures; the two groups of parallel structures form a second group of cross structures, one end of each of the 2 groups of cross structures is connected with the 2 connecting frames, and the other end of each of the 2 groups of cross structures is connected with the upright post. The counterweight part comprises a counterweight device and a translation driving device connected with the counterweight device, and the translation driving device is fixedly connected with the platform or the upright column and is a linear driving device, such as a hydraulic cylinder, an air cylinder, an electric push rod and the like; the self-balancing mechanism is used for balancing the gravity center shift generated by the extension and contraction of the link mechanism, and the self-balancing performance of the link mechanism is ensured.
It should be noted that the cross structure formed between the first link and the second link according to the present invention is different from the conventional "X" shaped telescopic structure because the cross structure is not hinged at the middle crossing point.
As shown in fig. 1 to 6c, in the self-balancing linkage mechanism of the present invention, all the connecting members are simultaneously stretched and simultaneously contracted when being subjected to an external force. Such as: when external thrust is applied to the connecting frame, the first connecting rod, the second connecting rod and the third connecting rod act simultaneously to achieve contraction of the connecting rod mechanism. When external pulling force is applied to the connecting frame, the first connecting rod, the second connecting rod and the third connecting rod act simultaneously to realize the extension of the connecting rod mechanism. The angle between the connection parts is changed by the magnitude of the external force applied to the connection frame, thereby realizing the extension and contraction of the link mechanism.
The self-balancing link mechanism has self-balancing property, the link mechanism can realize contraction and expansion by applying small pushing force or pulling force on the connecting frame, the counterweight device synchronously approaches to the upright post when the link mechanism contracts, and the counterweight device synchronously leaves away from the upright post when the link mechanism expands, so that the gravity center offset generated by the expansion of the link mechanism is balanced, and the self-balancing property of the link mechanism is realized.
As such, the telescopic efficiency of the link mechanism of the present invention is greatly improved over the efficiency of the conventional X-shaped telescopic structure with a hinged middle part. And the self-balancing link mechanism has the advantages of few used parts, high connection strength, strong stability, high safety, simple maintenance and low cost.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
Translated fromChinesePriority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011631476.7ACN112695608A (en) | 2020-12-31 | 2020-12-31 | Self-balancing link mechanism for building telescopic bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011631476.7ACN112695608A (en) | 2020-12-31 | 2020-12-31 | Self-balancing link mechanism for building telescopic bridge |
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| Publication Number | Publication Date |
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| CN112695608Atrue CN112695608A (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011631476.7APendingCN112695608A (en) | 2020-12-31 | 2020-12-31 | Self-balancing link mechanism for building telescopic bridge |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2597129A1 (en)* | 1986-04-11 | 1987-10-16 | Dietrich & Cie De | Folding lightweight bridge-support enabling so-called heavy vehicles, particularly armoured vehicles, to cross gaps |
| NL9101372A (en)* | 1991-08-09 | 1992-01-02 | N D Van Driel Tevens Handelend | Bascule bridge - has tail weights on opposite sides of deck and above it in shut position |
| CN102575441A (en)* | 2009-05-06 | 2012-07-11 | 德尚父子企业公司 | Improved temporary bridge |
| CN104563460A (en)* | 2014-12-31 | 2015-04-29 | 山东建筑大学 | Large-travel connecting rod mechanism pasting machine |
| CN104781586A (en)* | 2012-08-22 | 2015-07-15 | 十倍工程有限公司 | Apparatus for converting motion |
| CN105765270A (en)* | 2013-09-04 | 2016-07-13 | 十倍工程有限公司 | device for converting motion |
| CN108455318A (en)* | 2018-03-30 | 2018-08-28 | 长沙理工大学 | A kind of multi-bar linkage conveyer |
| CN108487468A (en)* | 2018-03-30 | 2018-09-04 | 长沙理工大学 | A kind of link mechanism Foldable square storehouse |
| CN208649888U (en)* | 2018-07-04 | 2019-03-26 | 中铁大桥科学研究院有限公司 | An intelligent detection device suitable for bridges |
| CN110485255A (en)* | 2019-08-12 | 2019-11-22 | 三峡大学 | A kind of collapsible emergency bridge and application method |
| CN111039196A (en)* | 2019-12-26 | 2020-04-21 | 沈阳建筑大学 | Scissor fork combined type movable counterweight device of luffing jib tower crane and use method thereof |
| CN111962376A (en)* | 2020-08-12 | 2020-11-20 | 辽源市汽车改装有限公司 | Vehicle-mounted emergency rescue folding bridge |
| CN212129448U (en)* | 2020-03-30 | 2020-12-11 | 北京锦锋建设工程有限公司 | Intelligent steel structure building house |
- 2020
- 2020-12-31CNCN202011631476.7Apatent/CN112695608A/enactivePending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2597129A1 (en)* | 1986-04-11 | 1987-10-16 | Dietrich & Cie De | Folding lightweight bridge-support enabling so-called heavy vehicles, particularly armoured vehicles, to cross gaps |
| NL9101372A (en)* | 1991-08-09 | 1992-01-02 | N D Van Driel Tevens Handelend | Bascule bridge - has tail weights on opposite sides of deck and above it in shut position |
| CN102575441A (en)* | 2009-05-06 | 2012-07-11 | 德尚父子企业公司 | Improved temporary bridge |
| CN104781586A (en)* | 2012-08-22 | 2015-07-15 | 十倍工程有限公司 | Apparatus for converting motion |
| CN105765270A (en)* | 2013-09-04 | 2016-07-13 | 十倍工程有限公司 | device for converting motion |
| CN104563460A (en)* | 2014-12-31 | 2015-04-29 | 山东建筑大学 | Large-travel connecting rod mechanism pasting machine |
| CN108455318A (en)* | 2018-03-30 | 2018-08-28 | 长沙理工大学 | A kind of multi-bar linkage conveyer |
| CN108487468A (en)* | 2018-03-30 | 2018-09-04 | 长沙理工大学 | A kind of link mechanism Foldable square storehouse |
| CN208649888U (en)* | 2018-07-04 | 2019-03-26 | 中铁大桥科学研究院有限公司 | An intelligent detection device suitable for bridges |
| CN110485255A (en)* | 2019-08-12 | 2019-11-22 | 三峡大学 | A kind of collapsible emergency bridge and application method |
| CN111039196A (en)* | 2019-12-26 | 2020-04-21 | 沈阳建筑大学 | Scissor fork combined type movable counterweight device of luffing jib tower crane and use method thereof |
| CN212129448U (en)* | 2020-03-30 | 2020-12-11 | 北京锦锋建设工程有限公司 | Intelligent steel structure building house |
| CN111962376A (en)* | 2020-08-12 | 2020-11-20 | 辽源市汽车改装有限公司 | Vehicle-mounted emergency rescue folding bridge |
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