CN114481801A - Multistage adjustable mechanized bridge foot - Google Patents
Multistage adjustable mechanized bridge foot Download PDFInfo
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- CN114481801A CN114481801A CN202111562889.9A CN202111562889A CN114481801A CN 114481801 A CN114481801 A CN 114481801A CN 202111562889 A CN202111562889 A CN 202111562889A CN 114481801 A CN114481801 A CN 114481801A
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- bridge
- multistage adjustable
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- multistage
- bridge foot
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- 230000004888 barrier function Effects 0.000 description 4
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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
- E01D15/124—Folding or telescopic bridges; Bridges built up from folding or telescopic sections
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
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- Civil Engineering (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a multistage adjustable mechanized bridge foot, which can effectively solve the problem that the application range of the conventional mechanized bridge foot is limited. This multistage adjustable mechanized bridge foot includes: the device comprises a crown material assembly and two bridge leg supporting legs connected through a transverse telescopic oil cylinder; the tops of the two bridge leg supporting legs are connected with the crown material assembly; the transverse telescopic oil cylinder is used for adjusting the transverse distance between the two bridge leg supporting legs; the bridge foot landing leg includes: the device comprises two multistage adjustable bridge sockets, an unfolding support oil cylinder and a foundation plate assembly; the multistage adjustable bridge socle is multistage adjustable in the length direction; one end of each of the two multistage adjustable bridge socle is hinged with the crown material assembly, and the other end of each of the two multistage adjustable bridge socle is respectively connected with two ends of the foundation plate assembly; the unfolding support oil cylinder is arranged between the two multistage adjustable bridge foot columns, and the two multistage adjustable bridge foot columns can rotate around the hinging with the crown material assembly under the pushing of the unfolding oil cylinder, so that the two multistage adjustable bridge foot columns are oppositely unfolded for a certain angle and form a triangular structure with the foundation plate assembly.
Description
Technical Field
The invention relates to a bridge foot, in particular to a multistage adjustable bridge foot, and belongs to the technical field of mechanical bridges.
Background
The latest heavy mechanical bridge in service in China at present is a GQL111 type heavy mechanical bridge, and the equipment is assembled in batches with troops and government emergency departments and plays a great role in troop exercise and flood fighting and emergency treatment. The bridge foot is an important component of a heavy-duty mechanized bridge, is used for directly supporting a bridge span and transferring the load on the bridge span to a river bed, and 1 pair of bridge feet is arranged on each 1 bridge car.
Along with the improvement of engineering guarantee requirements, the performance short slab of the GQL111 heavy-duty mechanized bridge is gradually obvious, the barrier depth of a bridge foot is between 3.32m and 5m, the equipment is limited to be used when facing to shoals, shallow rivers and shallow dry ditch barriers with the barrier depth less than 3.32m, and the equipment cannot be used when facing to barriers with the depth more than 5 m.
Disclosure of Invention
In view of this, the invention provides a multistage adjustable mechanized bridge foot, which can improve the application range of the bridge foot, thereby effectively solving the problem that the application range of the existing mechanized bridge foot is limited.
The multistage adjustable mechanized bridge foot include: the device comprises a crown material assembly and two bridge leg supporting legs connected through a transverse telescopic oil cylinder;
the tops of the two bridge foot supporting legs are connected with a crown material assembly, and the crown material assembly is used for connecting the bridge span and the bridge foot;
the transverse telescopic oil cylinder is used for adjusting the transverse distance between the two bridge foot supporting legs;
the bridge foot leg comprises: the device comprises two multistage adjustable bridge sockets, an unfolding support oil cylinder and a foundation plate assembly; the multistage adjustable bridge foot columns are multistage adjustable in the length direction;
one end of each of the two multistage adjustable bridge socles is hinged with the crown material assembly, and the other end of each of the two multistage adjustable bridge socles is connected with two ends of the foundation plate assembly respectively; the unfolding support oil cylinder is arranged between the two multistage adjustable bridge foot columns, and the two multistage adjustable bridge foot columns can rotate around the hinge joint with the crown material assembly under the pushing of the unfolding oil cylinder, so that the two multistage adjustable bridge foot columns can relatively unfold by an angle and form a triangular structure with the foundation plate assembly integrally.
Preferably, the multistage adjustable bridge footer comprises: the hydraulic system comprises a multi-stage spiral self-locking hydraulic cylinder and a hydraulic motor for driving the multi-stage spiral self-locking hydraulic cylinder to stretch.
Preferably, the multistage spiral self-locking hydraulic cylinder is a two-stage spiral self-locking hydraulic cylinder.
Preferably, the lower end of the multistage adjustable bridge socle is hinged with the foundation plate assembly through a spherical hinge joint.
Preferably, the cylinder body end of the multistage spiral self-locking hydraulic cylinder is connected with the crown material assembly, and the telescopic end is connected with the foundation plate assembly; when the multistage spiral self-locking hydraulic cylinder is completely retracted, the multistage adjustable bridge leg column is at the shortest extension distance, and the length of the multistage adjustable bridge leg column is the length of the cylinder body end of the multistage spiral self-locking hydraulic cylinder.
Has the advantages that:
(1) the application range of the bridge foot is widened by adopting the multistage spiral self-tightening telescopic cylinder, so that the adaptability of the bridge foot is stronger; and the multistage cylinder can stretch out and draw back in step, improves bridge foot work efficiency.
(2) The bridge foot unfolding driving mechanism can achieve the purpose of rapidly unfolding the bridge foot.
Drawings
FIG. 1 is a three-dimensional schematic diagram of the longest extension distance of a bridge leg according to the present invention;
fig. 2 is a three-dimensional schematic diagram of the shortest extension distance of the bridge foot according to the present invention.
Wherein: 1-crown material assembly, 2-transverse telescopic cylinder, 3-multistage adjustable bridge foot column, 4-expansion supporting oil cylinder, 5-bridge foot supporting leg and 6-foundation plate assembly
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
The embodiment provides a multistage adjustable mechanized bridge foot, which is used for improving the application range of the bridge foot.
As shown in fig. 1 and 2, the bridge foot includes: the device comprises a crown material assembly 1 and two bridge leg supporting legs 5 connected through a transverse telescopic cylinder 2; the tops of the two bridge foot supporting legs 5 are connected with the crown material assembly 2, and the crown material assembly 2 is used for connecting the bridge span and the bridge feet. The transverse telescopic cylinder 2 is parallel to the crown material assembly 1, the cylinder body end of the transverse telescopic cylinder 2 is connected with one bridge leg support 5, and the piston end is connected with the other bridge leg support 5; the transverse distance between the two bridge foot supporting legs 5 is adjusted through the expansion of the piston end of the transverse expansion cylinder 2. The two bridge foot supporting legs 5 have the same structure and are length multistage adjustable bridge foot supporting legs, and the multistage adjustment of the height of the mechanical bridge foot is realized through the multistage adjustment of the lengths of the two bridge foot supporting legs 5.
Each bridge foot leg 5 comprises: two multistage adjustable bridge socle 3, expansion support cylinder 4 and base plate assembly 6; wherein, the multistage adjustable bridge socle 3 adopts a multistage spiral self-locking telescopic cylinder; one end of each of the two multistage adjustable bridge socle 3 is hinged with the crown material assembly 2, and the other end is respectively connected with two ends of the foundation plate assembly 6; the unfolding support oil cylinders 4 are arranged between the two bridge foot columns, and the two multistage adjustable bridge foot columns 3 can rotate around the hinge joint with the crown material assembly 2 under the pushing action of the unfolding support oil cylinders 4, so that the two unfolding support oil cylinders 4 are oppositely unfolded at a certain angle and form a triangular structure with the foundation plate assembly 6; the foundation plate assembly 6 serves to uniformly transfer the load acting on the bridge span to the river bed.
In this example a two-stage adjustable bridge leg, comprising: a hydraulic plunger motor and a two-stage spiral self-locking hydraulic cylinder; the hydraulic plunger motor is used for driving the two-stage spiral self-locking hydraulic cylinder; the cylinder body end of the two-stage spiral self-locking hydraulic cylinder is connected with the crown material assembly 1, and the telescopic end is connected with the foundation plate assembly 6. As shown in fig. 1, when the two-stage spiral self-locking hydraulic cylinder is fully extended, the bridge foot column is at the longest extension distance; when the two-stage spiral self-locking hydraulic cylinder is completely retracted, the bridge leg column is at the shortest extension distance, and the length of the bridge leg column is the length of the cylinder body end of the two-stage spiral self-locking hydraulic cylinder at the moment.
In order to realize the synchronous extension and retraction of two multistage adjustable bridge socle 3 in each bridge foot landing leg 5, four hydraulic motors are synchronously driven.
When the obstacle-restraining device is used for erecting a long-distance obstacle-restraining device, the unfolding supporting oil cylinder 4 is used for unfolding the two multistage adjustable bridge socle 3 for a certain angle, and then the hydraulic motor is controlled to enable the two multistage adjustable bridge socle 3 to be stretched to the maximum position. When the obstacle-removing bridge is erected in a short distance, the hydraulic motor is controlled to enable the two multistage adjustable bridge socles 3 to contract. As the length of the foundation plate assembly 6 is unchanged, as shown in figure 2, when the obstacle-removing bridge is erected in a short distance, the extending distance of the unfolding supporting oil cylinder 4 reaches the maximum value, and the unfolding angle of the two multistage adjustable bridge socle 3 is the maximum value at the moment.
The operation process of the bridge foot is as follows:
during transportation, the bridge feet are folded and furled in the bridge span. When the bridge is built, the two bridge foot supporting legs 7 are firstly pulled open through the transverse telescopic oil cylinder 2 and are connected with the bridge span through the connecting lugs, the middle support and the bolts in the crown material assembly 1 to transfer load. Controlling the multistage adjustable bridge socle 3 to synchronously stretch; after the multistage adjustable bridge socle 3 extends to the predetermined position, utilize expansion support cylinder 4 to expand multistage adjustable bridge socle 3 and foundatin plate assembly 6 (foundatin plate assembly 6 is connected with the bridge socle through spherical hinge joint), evenly transmit the load that is used in the bridge span to the riverbed through foundatin plate assembly 6.
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 (5)
1. A multistage adjustable, mechanized bridge foot, comprising: the bridge leg assembly comprises a crown material assembly (1) and two bridge leg supporting legs (5) connected through a transverse telescopic oil cylinder (2);
the tops of the two bridge foot supporting legs (5) are connected with a crown material assembly (2), and the crown material assembly (2) is used for connecting the bridge span and the bridge foot;
the transverse telescopic oil cylinder (2) is used for adjusting the transverse distance between the two bridge foot supporting legs (5);
the bridge foot leg (5) comprises: two multistage adjustable bridge socles (3), an unfolding support oil cylinder (4) and a foundation plate assembly (6); the multistage adjustable bridge socle (3) is multistage adjustable in the length direction;
one end of each of the two multistage adjustable bridge socle (3) is hinged with the crown material assembly (2), and the other end of each of the two multistage adjustable bridge socle is respectively connected with two ends of the foundation plate assembly (6); the unfolding support oil cylinder (4) is arranged between the two multistage adjustable bridge foot columns (3), the two multistage adjustable bridge foot columns (3) can rotate around the hinge joint with the crown material assembly (2) under the pushing action of the unfolding oil cylinder, so that the two multistage adjustable bridge foot columns (3) are oppositely unfolded in angle and integrally form a triangular structure with the foundation plate assembly (6).
2. The multistage adjustable mechanized bridge foot according to claim 1, characterized in that the multistage adjustable bridge foot column (3) comprises: the hydraulic system comprises a multi-stage spiral self-locking hydraulic cylinder and a hydraulic motor for driving the multi-stage spiral self-locking hydraulic cylinder to stretch.
3. The multi-stage adjustable mechanized bridge foot of claim 2, wherein the multi-stage helical self-locking hydraulic cylinder is a two-stage helical self-locking hydraulic cylinder.
4. The multistage adjustable mechanized bridge foot according to claim 1, characterized in that the lower end of the multistage adjustable bridge foot column (3) is hinged with the foundation plate assembly (6) by means of a spherical hinge joint.
5. The multistage adjustable mechanized bridge foot of claim 2, wherein the cylinder end of the multistage helical self-locking hydraulic cylinder is connected to the crown material assembly (1), and the telescopic end is connected to the base plate assembly (6); when the multi-stage spiral self-locking hydraulic cylinder is completely retracted, the multi-stage adjustable bridge socle (3) is at the shortest extension distance, and the length of the multi-stage adjustable bridge socle (3) is the length of the cylinder body end of the multi-stage spiral self-locking hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562889.9A CN114481801A (en) | 2021-12-20 | 2021-12-20 | Multistage adjustable mechanized bridge foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562889.9A CN114481801A (en) | 2021-12-20 | 2021-12-20 | Multistage adjustable mechanized bridge foot |
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| Publication Number | Publication Date |
|---|---|
| CN114481801A true CN114481801A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111562889.9A Pending CN114481801A (en) | 2021-12-20 | 2021-12-20 | Multistage adjustable mechanized bridge foot |
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| CN (1) | CN114481801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351585A (en) * | 2020-07-28 | 2022-04-15 | 上海宏华海洋油气装备有限公司 | Bridge system that erects in succession fast |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205443904U (en) * | 2015-12-29 | 2016-08-10 | 湖北华舟重工应急装备股份有限公司 | Retractable mechanized bridge foot pier |
| CN112252163A (en) * | 2020-10-29 | 2021-01-22 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Folding and unfolding mechanism for herringbone bridge foot foundation plate assembly |
| CN112252162A (en) * | 2020-10-29 | 2021-01-22 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Mechanical bridge foot locking device |
| CN217231439U (en) * | 2021-12-20 | 2022-08-19 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Multistage adjustable mechanized bridge foot |
-
2021
- 2021-12-20 CN CN202111562889.9A patent/CN114481801A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205443904U (en) * | 2015-12-29 | 2016-08-10 | 湖北华舟重工应急装备股份有限公司 | Retractable mechanized bridge foot pier |
| CN112252163A (en) * | 2020-10-29 | 2021-01-22 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Folding and unfolding mechanism for herringbone bridge foot foundation plate assembly |
| CN112252162A (en) * | 2020-10-29 | 2021-01-22 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Mechanical bridge foot locking device |
| CN217231439U (en) * | 2021-12-20 | 2022-08-19 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Multistage adjustable mechanized bridge foot |
Non-Patent Citations (1)
| Title |
|---|
| 张银龙等: "军用桥梁桥脚稳定性研究的难点", 四川兵工学报, no. 01, 25 January 2009 (2009-01-25), pages 123 - 126 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351585A (en) * | 2020-07-28 | 2022-04-15 | 上海宏华海洋油气装备有限公司 | Bridge system that erects in succession fast |
| CN114351585B (en) * | 2020-07-28 | 2023-06-16 | 四川宏华石油设备有限公司 | Bridge system capable of being erected continuously and rapidly |
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