CN112252162A - Mechanical bridge foot locking device - Google Patents
Mechanical bridge foot locking device Download PDFInfo
- Publication number
- CN112252162A CN112252162A CN202011181977.XA CN202011181977A CN112252162A CN 112252162 A CN112252162 A CN 112252162A CN 202011181977 A CN202011181977 A CN 202011181977A CN 112252162 A CN112252162 A CN 112252162A
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- column tube
- shaft sleeve
- inner column
- locking mechanism
- bridge foot
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- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a mechanical bridge foot locking device, wherein a bridge foot comprises an inner column tube and an outer column tube which are in sliding fit, and the locking device comprises: a locking mechanism and a housing; the locking mechanism comprises a fixed part and a rotating part which are in rotating fit, one end of the housing is fixed on the outer surface of the outer column tube, the other end of the housing is connected with the fixed part of the locking mechanism, the rotating part of the locking mechanism is provided with a concave-convex structure in a staggered manner, the outer circumferential surface of the inner column tube is correspondingly provided with notches, after the inner column tube is lifted to a set position relative to the outer column tube, when the rotating part of the locking mechanism rotates for a set angle I, the protrusions on the inner column tube can be correspondingly buckled and matched with the notches on the outer circumferential surface of the inner column tube, and the inner column tube and the outer column tube; when the rotating part of the locking mechanism rotates by a set angle II, the concave structure on the locking mechanism is parallel to the notch on the outer circumferential surface of the inner column tube, and the inner column tube and the outer column tube can be unlocked.
Description
Technical Field
The invention relates to the technical field of mechanical locking mechanisms, in particular to a mechanical bridge foot locking device.
Background
With the development of the mechanized bridge technology, the obstacle crossing width and depth requirements are higher and higher, and the multi-span continuous erection technology is continuously developed and promoted. In the process of erecting and withdrawing the mechanical bridge, the height of the bridge foot must be adjusted to meet the requirements of different obstacle depths. Therefore, the locking after the height adjustment of the bridge foot is a key step for safely erecting and withdrawing the mechanical bridge, and the importance of the locking device is highlighted. Therefore, a mechanical bridge foot locking device which can meet functional requirements and use requirements needs to be designed.
Disclosure of Invention
In view of this, the invention provides a mechanical bridge foot locking device, which can lift and lock a mechanical bridge foot without affecting the normal through-loading function of a bridge.
The technical scheme of the invention is as follows: a mechanized bridge foot locking arrangement, the foot of a bridge includes sliding fit's inner and outer column pipes, the locking arrangement includes: a locking mechanism and a housing; the locking mechanism comprises a fixed part and a rotating part which are in rotating fit, one end of the housing is fixed on the outer surface of the outer column tube, the other end of the housing is connected with the fixed part of the locking mechanism, the rotating part of the locking mechanism is provided with a concave-convex structure in a staggered manner, the outer circumferential surface of the inner column tube is correspondingly provided with notches, after the inner column tube is lifted to a set position relative to the outer column tube, when the rotating part of the locking mechanism rotates for a set angle I, the protrusions on the inner column tube can be correspondingly buckled and matched with the notches on the outer circumferential surface of the inner column tube, and the inner column tube and the outer column tube; when the rotating part of the locking mechanism rotates by a set angle II, the concave structure on the locking mechanism is parallel to the notch on the outer circumferential surface of the inner column tube, and the inner column tube and the outer column tube can be unlocked.
Preferably, the housing comprises: a support plate and a mounting plate; the supporting plate is of a frame structure and is fixedly arranged between two oppositely arranged mounting plates through more than two groups of fixing assemblies.
Preferably, the fixing portion of the locking mechanism comprises: the upper shaft sleeve, the gear and the lower shaft sleeve;
the upper shaft sleeve and the lower shaft sleeve are positioned on the side surface of the upper column tube, one ends of the upper shaft sleeve and the lower shaft sleeve are respectively fixedly arranged on the two mounting plates, and the upper shaft sleeve and the lower shaft sleeve are coaxial and are positioned in the housing; the other ends of the upper shaft sleeve and the lower shaft sleeve are fixedly connected with two ends of the gear respectively; wherein, the axis of upper shaft cover and lower shaft cover all is parallel with the axis of interior pillar pipe.
Preferably, the rotating portion of the locking mechanism includes: the locking nut, the radial two opposite sides of lock nut inner circumference face are equipped with the breach, form crisscross concave-convex structure, and the breach on the interior sleeve pipe is located radial two opposite sides, and lock nut coaxial suit is on interior sleeve pipe, and its surface and gear engagement to drive the rotation part and rotate.
Preferably, a gasket is arranged between the upper shaft sleeve or the lower shaft sleeve or between the upper shaft sleeve and the gear and between the lower shaft sleeve and the gear, and is used for adjusting the position of the gear.
Preferably, the housing is provided with a screw plug for plugging the lower shaft sleeve.
Preferably, coaxial through holes are formed in the two mounting plates, and the aperture of each through hole is matched with the outer diameter of the outer column pipe; the top end of the outer column tube is fixed with an outer cavity of an external cylinder body end into a whole, the inner column tube is fixed at a piston end of the cylinder, and the telescopic motion of the piston of the cylinder can drive the inner column tube to slide relative to the outer column tube.
Preferably, the bottom of the outer column tube is provided with a sliding block for guiding and limiting the inner column tube, so that the outer column tube and the inner column tube are coaxial.
Has the advantages that:
1. the bridge foot locking device has the advantages of compact structure, safety, reliability, simplicity and convenience in operation, time and labor saving, is erected and retracted by a set erecting vehicle, does not influence the normal open-load function of a bridge, and can flexibly control the locking and retraction states of the bridge feet; the operation is simple, the operation time is short, the efficiency is high, and the mechanical bridge can be matched with the whole erection and withdrawal process of the mechanical bridge.
2. The specific arrangement of the housing effectively integrates the locking mechanism and the bridge foot together, and realizes reliable locking or unlocking between the inner column tube and the outer column tube in the bridge foot.
3. The specific arrangement of the locking mechanism in the invention can accurately and reliably lock or unlock the inner column tube and the outer column tube in the bridge foot.
Drawings
Fig. 1 is a schematic view of the unfolded state of the bridge foot when the mechanical bridge is erected.
Fig. 2 is a schematic diagram of the up-and-down movement of a bridge foot of the mechanical bridge, and (1) a front view and (2) a side view are shown.
FIG. 3 is a schematic view of the locking device for the foot of the mechanical bridge of the present invention in a released state.
FIG. 4 is a schematic cross-sectional view of the locking device for the locking device of the mechanical bridge foot in a release state.
FIG. 5 is a schematic diagram of the mechanical bridge foot locking device according to the present invention.
Fig. 6 is a schematic view of a mechanical bridge foot locking device of the invention (excluding an inner column tube).
Fig. 7 is a schematic view ii (excluding the inner column tube) of the mechanical bridge foot locking device of the present invention.
Fig. 8 is a schematic view of the locking state of the mechanical bridge foot locking device.
FIG. 9 is a cross-sectional view of the locking state of the locking device for the mechanical bridge foot.
Fig. 10 is a three-dimensional view of the inner column tube of the present invention.
The locking mechanism comprises a locking mechanism 1, a supporting plate 2, a housing 3, an upper shaft sleeve 4, a bolt 5, a nut 6, a washer 7, a fixing component 8, a locking nut 9, a gear 10, a gasket 11, a lower shaft sleeve 12 and a screw plug 13.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The embodiment provides a mechanical bridge foot locking device, which can lift and lock a mechanical bridge foot and does not influence the normal through-loading function of a bridge.
As shown in fig. 3, 4, 8 and 9, the bridge foot locking device includes: a locking mechanism 1 and a housing 3; wherein, locking mechanical system 1 includes: the upper shaft sleeve 4, the locking nut 9, the gear 10 and the lower shaft sleeve 12; the housing 3 includes: a pallet 2 and a mounting plate;
the connection relationship of the bridge foot locking device is as follows: the supporting plate 2 is of a frame structure and is fixedly arranged between two oppositely arranged mounting plates through more than two groups of fixing components 8 (comprising bolts 5, nuts 6 and washers 7) to form a housing 3;
coaxial through holes are arranged on the two mounting plates, the aperture of each through hole is matched with the outer diameter of the outer column tube, and the housing 3 is fixedly sleeved on the outer column tube; the inner column tube is coaxially arranged in the outer column tube, the top end of the outer column tube is fixed with an outer cavity of an external cylinder body end into a whole, the inner column tube is fixed at a piston end of the cylinder, and the telescopic motion of a piston of the cylinder can drive the inner column tube to slide relative to the outer column tube; meanwhile, the bottom of the outer column tube is provided with a sliding block for guiding and limiting the inner column tube, so that the outer column tube and the inner column tube are coaxial;
the upper shaft sleeve 4 and the lower shaft sleeve 12 are positioned on the side surface of the upper column tube, one end of the upper shaft sleeve 4 and one end of the lower shaft sleeve 12 are respectively and fixedly arranged on two mounting plates of the housing 3, and the upper shaft sleeve 4 and the lower shaft sleeve 12 are coaxial (the central axis thereof is parallel to the central axes of the inner column tube and the outer column tube) and are positioned inside the housing 3; the other end of the upper shaft sleeve 4 and the other end of the lower shaft sleeve 12 are fixedly connected with two ends of the gear 10 through mounting shafts respectively, so that the gear 10 is fixedly mounted between the two mounting plates of the housing 3;
as shown in fig. 10, the two radial opposite sides of the outer circumferential surface of the inner cylindrical tube are provided with notches, the two radial opposite sides of the inner circumferential surface of the lock nut 9 are provided with notches, the lock nut 9 is coaxially sleeved on the inner sleeve, the outer surface of the lock nut 9 is meshed with the gear 10, the notches of the lock nut 9 and the inner cylindrical tube are in a horizontal loosening state, and the notches of the lock nut 9 and the inner cylindrical tube are in a vertical locking state.
The working principle of the bridge foot locking device is as follows: as shown in fig. 1, after the erection vehicle enters an erection site, the crane is erected, and the traction bridge spans down the bridge legs, so that the bridge legs enter a bridge span erection state; as shown in fig. 2, the foundation plate at the bottom of the bridge foot can move up and down along with the inner column pipe;
the rotating gear 10 drives the locking nut 9 to rotate for a set angle, as shown in fig. 3-6, when the gap on the locking nut 9 and the gap on the inner column tube are in an angle of 180 degrees, the locking mechanism 1 is in a loosening state, and the inner column tube in the bridge foot can move up and down relative to the outer column tube;
as shown in fig. 7-9, when the gap on the lock nut 9 and the gap on the inner column tube are at 90 °, the locking mechanism 1 is in a locked state, and the locking device locks the inner column tube, thereby locking the inner column tube and the outer column tube.
Further, a gasket 11 can be arranged between the upper shaft sleeve 4 and the lower shaft sleeve 12 and the gear 10, and the gasket 11 is used for adjusting the gear 10 to move up and down (along the axial direction of the upper shaft sleeve 4 and the lower shaft sleeve 12).
Further, a plug screw 13 is welded to the housing 3 and serves to block the lower bushing 12.
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 (8)
1. A mechanized bridge foot locking device, the bridge foot includes sliding fit's interior pillar pipe and outer pillar pipe, its characterized in that, locking device includes: a locking mechanism (1) and a housing (3); the locking mechanism (1) comprises a fixed part and a rotating part which are in rotating fit, one end of the housing (3) is fixed on the outer surface of the outer column tube, the other end of the housing is connected with the fixed part of the locking mechanism (1), concave-convex structures are arranged on the rotating part of the locking mechanism (1) in a staggered mode, notches are correspondingly arranged on the outer circumferential surface of the inner column tube, after the inner column tube is lifted to a set position relative to the outer column tube, when the rotating part of the locking mechanism (1) rotates for a set angle I, protrusions on the inner column tube can be correspondingly matched with the notches on the outer circumferential surface of the inner column tube in a buckling mode, and the inner column tube and the outer column tube are; when the rotating part of the locking mechanism (1) rotates by a set angle II, the concave structure on the locking mechanism is parallel to the notch on the outer circumferential surface of the inner column tube, and the inner column tube and the outer column tube can be unlocked.
2. The mechanical bridge foot locking device according to claim 1, characterized in that said casing (3) comprises: a supporting plate (2) and a mounting plate; the supporting plate (2) is of a frame structure and is fixedly arranged between two oppositely arranged mounting plates through more than two groups of fixing assemblies (8).
3. The mechanical bridge foot locking device according to claim 2, characterized in that the fixed part of the locking mechanism (1) comprises: an upper shaft sleeve (4), a gear (10) and a lower shaft sleeve (12);
the upper shaft sleeve (4) and the lower shaft sleeve (12) are positioned on the side surface of the upper column tube, one end of the upper shaft sleeve (4) and one end of the lower shaft sleeve (12) are respectively fixedly arranged on the two mounting plates, and the upper shaft sleeve (4) and the lower shaft sleeve (12) are coaxial and are positioned inside the housing (3); the other ends of the upper shaft sleeve (4) and the lower shaft sleeve (12) are fixedly connected with the two ends of the gear (10) respectively; wherein, the central axes of the upper shaft sleeve (4) and the lower shaft sleeve (12) are parallel to the central axes of the inner column tube and the outer column tube.
4. A mechanical bridge foot locking arrangement according to claim 3, characterized in that the rotating part of the locking mechanism (1) comprises: the locking nut (9), the radial two opposite sides of the internal circumference of the locking nut (9) are provided with notches to form a staggered concave-convex structure, the notches on the inner sleeve are positioned on the radial two opposite sides, the locking nut (9) is coaxially sleeved on the inner sleeve, and the outer surface of the locking nut is meshed with the gear (10) so as to drive the rotating part to rotate.
5. A mechanical bridge foot lock according to claim 2, characterized in that a spacer (11) is arranged between the gear (10) and the upper bushing (4) or the lower bushing (12) or the upper bushing (4) and the lower bushing (12) for adjusting the position of the gear (10).
6. The mechanical bridge foot locking device according to claim 2, characterized in that a screw plug (13) is mounted on the housing (3) for blocking the lower bushing (12).
7. The mechanical bridge foot locking device of claim 2, wherein two of the mounting plates are provided with coaxial through holes, and the diameter of each through hole is matched with the outer diameter of the outer column tube; the top end of the outer column tube is fixed with an outer cavity of an external cylinder body end into a whole, the inner column tube is fixed at a piston end of the cylinder, and the telescopic motion of the piston of the cylinder can drive the inner column tube to slide relative to the outer column tube.
8. The mechanical bridge foot locking device of claim 7, wherein the outer column tube is provided with a slide block at the bottom thereof for guiding and limiting the inner column tube, thereby ensuring that the outer column tube and the inner column tube are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011181977.XA CN112252162B (en) | 2020-10-29 | 2020-10-29 | Bridge foot locking device of mechanized bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011181977.XA CN112252162B (en) | 2020-10-29 | 2020-10-29 | Bridge foot locking device of mechanized bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112252162A true CN112252162A (en) | 2021-01-22 |
| CN112252162B CN112252162B (en) | 2024-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011181977.XA Active CN112252162B (en) | 2020-10-29 | 2020-10-29 | Bridge foot locking device of mechanized bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112252162B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114481801A (en) * | 2021-12-20 | 2022-05-13 | 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 |
| CN114481802A (en) * | 2021-12-20 | 2022-05-13 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Height-adjustable mechanical bridge foot |
| CN114687291A (en) * | 2022-04-08 | 2022-07-01 | 中联重科股份有限公司 | Locking method of mechanical bridge |
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 |
| CN107525483A (en) * | 2017-08-17 | 2017-12-29 | 安徽江淮汽车集团股份有限公司 | A kind of pressing device |
| CN107542033A (en) * | 2017-07-26 | 2018-01-05 | 湖北华舟重工应急装备股份有限公司 | A kind of whole Transporting track type multifunctional mechanization fast obstacle bridge |
| CN214831828U (en) * | 2020-10-29 | 2021-11-23 | 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 |
-
2020
- 2020-10-29 CN CN202011181977.XA patent/CN112252162B/en active Active
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 |
| CN107542033A (en) * | 2017-07-26 | 2018-01-05 | 湖北华舟重工应急装备股份有限公司 | A kind of whole Transporting track type multifunctional mechanization fast obstacle bridge |
| CN107525483A (en) * | 2017-08-17 | 2017-12-29 | 安徽江淮汽车集团股份有限公司 | A kind of pressing device |
| CN214831828U (en) * | 2020-10-29 | 2021-11-23 | 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 |
Non-Patent Citations (1)
| Title |
|---|
| 段志坚 , 李晋华 , 刘宁 , 田广才: "外军架桥作业车发展动态", 汽车运用, no. 03, 10 March 2003 (2003-03-10) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114481801A (en) * | 2021-12-20 | 2022-05-13 | 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 |
| CN114481802A (en) * | 2021-12-20 | 2022-05-13 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Height-adjustable mechanical bridge foot |
| CN114687291A (en) * | 2022-04-08 | 2022-07-01 | 中联重科股份有限公司 | Locking method of mechanical bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112252162B (en) | 2024-07-12 |
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