CN112252162B - Bridge foot locking device of mechanized bridge - Google Patents
Bridge foot locking device of mechanized bridge Download PDFInfo
- Publication number
- CN112252162B CN112252162B CN202011181977.XA CN202011181977A CN112252162B CN 112252162 B CN112252162 B CN 112252162B CN 202011181977 A CN202011181977 A CN 202011181977A CN 112252162 B CN112252162 B CN 112252162B
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- column tube
- locking mechanism
- shaft sleeve
- inner column
- tube
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- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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)
- Prostheses (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a mechanized 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 running 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 concave-convex structures in a staggered manner, gaps are correspondingly formed in 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 rotates for a set angle I, the protrusions on the inner column tube can be correspondingly in buckling fit with the gaps in the outer circumferential surface of the inner column tube, and the inner column tube and the outer column tube are locked; 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 mechanized bridge foot locking device.
Background
With the development of mechanized bridge technology, the requirements on obstacle crossing width and depth are higher and higher, and the multi-span continuous erection technology is continuously developed and improved. In the erection and withdrawal processes of the mechanized bridge, the height of the bridge foot must be adjusted to adapt to the requirements of different barrier depths. Therefore, the locking after the height adjustment of the bridge foot is a key step of the safety erection and the withdrawal of the mechanized bridge, and the importance of the locking device is highlighted. Therefore, it is necessary to design a mechanized bridge foot locking device which can meet the functional requirements and the use requirements.
Disclosure of Invention
In view of this, the invention provides a locking device for the bridge foot of the mechanized bridge, which can not only lift and lock the bridge foot of the mechanized bridge, but also does not affect the normal loading function of the bridge.
The technical scheme of the invention is as follows: a motorized bridge foot locking device, the bridge foot comprising a slip fit inner and outer post tube, the locking device comprising: a locking mechanism and a housing; the locking mechanism comprises a fixed part and a rotating part which are in running 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 concave-convex structures in a staggered manner, gaps are correspondingly formed in 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 rotates for a set angle I, the protrusions on the inner column tube can be correspondingly in buckling fit with the gaps in the outer circumferential surface of the inner column tube, and the inner column tube and the outer column tube are locked; 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 pallet 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 includes: an upper shaft sleeve, a gear and a lower shaft sleeve;
The upper shaft sleeve and the lower shaft sleeve are positioned on the side face of the upper column tube, one ends of the upper shaft sleeve and the lower shaft sleeve are respectively and fixedly arranged on the two mounting plates, and the upper shaft sleeve and the lower shaft sleeve are coaxial and positioned in the housing; the other ends of the upper shaft sleeve and the lower shaft sleeve are respectively and fixedly connected with the two ends of the gear; wherein, the axis of upper axle sleeve and lower axle sleeve is parallel with the axis of inside and outside post pipe.
Preferably, the rotating portion of the locking mechanism includes: the locking nut is provided with notches on two radial opposite sides of the inner circumferential surface of the locking nut to form a staggered concave-convex structure, the notches on the inner sleeve are positioned on two radial opposite sides, the locking nut is coaxially sleeved on the inner sleeve, and the outer surface of the locking nut is meshed with the gear, so that the rotating part is driven to rotate.
Preferably, the upper sleeve or the lower sleeve or the gaskets are arranged between the upper sleeve and the lower sleeve and the gear for adjusting the position of the gear.
Preferably, a screw plug is arranged on the housing for plugging the lower shaft sleeve.
Preferably, coaxial through holes are formed in the two mounting plates, and the apertures of the two through holes are 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 outer cylinder body end of the oil cylinder into a whole, the inner column tube is fixed at a piston end of the oil cylinder, and the telescopic movement of the oil cylinder piston 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.
The beneficial effects are that:
1. the bridge foot locking device has compact structure, safety, reliability, simple operation, time saving and labor saving, is erected and retracted by the set erection vehicle, does not influence the normal loading function of the bridge, and can flexibly control the locking and retraction states of the bridge foot; the operation is simpler and more convenient, the operation time is short, the efficiency is high, and the whole erection and withdrawal processes of the mechanized bridge can be matched.
2. The specific arrangement of the housing in the invention effectively integrates the locking mechanism and the bridge leg together, and realizes reliable locking or unlocking between the inner column tube and the outer column tube in the bridge leg.
3. The locking mechanism is specifically arranged, so that the inner column tube and the outer column tube in the bridge leg can be reliably locked or unlocked accurately.
Drawings
Fig. 1 is a schematic view showing an unfolded state of a bridge foot during the erection of a mechanized bridge.
Fig. 2 is a schematic view of the up-and-down movement of the mechanized bridge foot, (1) front view, (2) side view.
Fig. 3 is a schematic view showing a released state of the locking device of the mechanized bridge foot of the present invention.
Fig. 4 is a schematic cross-sectional view showing the released state of the locking device for the mechanized bridge foot of the present invention.
Fig. 5 is a schematic diagram illustrating the separation of the locking device of the mechanized bridge foot of the present invention.
Fig. 6 is a schematic diagram i (excluding the inner pillar tube) of the mechanized bridge foot locking device of the present invention.
Fig. 7 is a schematic diagram ii (excluding the inner pillar tube) of the mechanized bridge foot locking device of the present invention.
Fig. 8 is a schematic diagram showing a locking state of the locking device of the mechanized bridge foot of the present invention.
Fig. 9 is a schematic cross-sectional view showing a locked state of the locking device of the mechanized bridge foot of the present invention.
Fig. 10 is a three-view of the inner column tube of the present invention.
The device comprises a 1-locking mechanism, a 2-supporting plate, a 3-housing, a 4-upper shaft sleeve, a 5-bolt, a 6-nut, a 7-washer, an 8-fixing component, a 9-locking nut, a 10-gear, an 11-washer, a 12-lower shaft sleeve and a 13-screw plug.
Detailed Description
The invention will now be described in detail by way of example with reference to the accompanying drawings.
The embodiment provides a mechanized bridge foot locking device, which can not only lift and lock the mechanized bridge foot, but also does not influence the normal loading function of the bridge.
As shown in fig. 3,4, 8 and 9, the bridge leg locking device comprises: a locking mechanism 1 and a housing 3; wherein, locking mechanism 1 includes: an upper shaft sleeve 4, a lock nut 9, a gear 10 and a lower shaft sleeve 12; the housing 3 includes: a pallet 2 and a mounting plate;
The connection relation of the bridge leg 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 assemblies 8 (comprising bolts 5, nuts 6 and washers 7) to form a housing 3;
Coaxial through holes are formed in the two mounting plates, the apertures of the two through holes are 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 and an outer cavity of an outer cylinder body end of the oil cylinder are fixed into a whole, the inner column tube is fixed at a piston end of the oil cylinder, and the telescopic movement of the oil cylinder piston 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 (wherein the axes are parallel to the central axes of the inner column tube and the outer column tube) and positioned in the housing 3; the other end of the upper shaft sleeve 4 and the other end of the lower shaft sleeve 12 are respectively fixedly connected with the two ends of the gear 10 through mounting shafts, 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 circumference of the inner column tube are provided with notches, the two radial opposite sides of the inner circumference of the lock nut 9 are provided with notches, the lock nut 9 is coaxially sleeved on the inner sleeve tube, the outer surface of the lock nut is meshed with the gear 10, the notches of the lock nut 9 and the notches of the inner column tube are in a flat loosening state, and the notches of the lock nut 9 and the notches of the inner column tube are in a locking state.
The bridge leg locking device has the working principle that: as shown in fig. 1, after the erection vehicle enters an erection site, the lifting frame is erected, and the traction bridge is put down with bridge feet, so that the bridge feet enter a bridge span erection state; as shown in fig. 2, the base plate of the foot bottom of the bridge can move up and down with the inner column tube;
The rotating gear 10 drives the lock nut 9 to rotate for a set angle, as shown in fig. 3-6, when the gap on the lock nut 9 and the gap on the inner column tube are 180 degrees, the locking mechanism 1 is in a loosening state, and the inner column tube in the bridge leg can move up and down relative to the outer column tube;
As shown in fig. 7-9, when the notch on the lock nut 9 and the notch on the inner column tube form 90 degrees, the locking mechanism 1 is in a locking state, and the locking device locks the inner column tube, so that the inner column tube and the outer column tube are locked.
Further, a spacer 11 may be disposed between the upper and lower bushings 4, 12 and the gear 10, and the spacer 11 is used to adjust the gear 10 to move up and down (along the axial direction in which the upper and lower bushings 4, 12 are located).
Further, a screw plug 13 is welded to the housing 3 and serves to close off the lower sleeve 12.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. 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 mechanized bridge foot locking means, the bridge foot including a slip fit inner column tube and outer column tube, characterized in that the locking means comprises: a locking mechanism (1) and a housing (3); the locking mechanism (1) comprises a fixed part and a rotating part which are in running 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 manner, gaps are correspondingly formed in the outer circumferential surface of the inner column tube, and 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 by a set angle I, protrusions on the rotating part can be correspondingly in snap fit with the gaps on the outer circumferential surface of the inner column tube to lock the inner column tube and the outer column tube; when the rotating part of the locking mechanism (1) rotates for a set angle II, the concave structure on the locking mechanism is parallel to the notch on the outer circumference surface of the inner column tube, so that the inner column tube and the outer column tube can be unlocked;
The housing (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);
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 face of the upper column pipe, one ends of the upper shaft sleeve (4) and the lower shaft sleeve (12) are respectively and fixedly arranged on the two mounting plates, and the upper shaft sleeve (4) and the lower shaft sleeve (12) are coaxial and positioned in the housing (3); the other ends of the upper shaft sleeve (4) and the lower shaft sleeve (12) are respectively and fixedly connected with the two ends of the gear (10); 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;
The rotating part of the locking mechanism (1) comprises: the locking nut (9), the radial opposite sides of the inner 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 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.
2. The mechanized bridge foot locking device according to claim 1, characterized in that a spacer (11) is arranged between the upper sleeve (4) or the lower sleeve (12) or between the upper sleeve (4) and the lower sleeve (12) and the gear (10) for adjusting the position of the gear (10).
3. A mechanized bridge foot locking device according to claim 1, characterized in that the housing (3) is provided with a screw plug (13) for plugging the lower bushing (12).
4. The mechanized bridge foot locking device according to claim 1, wherein the two mounting plates are provided with coaxial through holes, and the apertures of the two through holes are 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 outer cylinder body end of the oil cylinder into a whole, the inner column tube is fixed at a piston end of the oil cylinder, and the telescopic movement of the oil cylinder piston can drive the inner column tube to slide relative to the outer column tube.
5. The motorized bridge foot locking device according to claim 4, wherein the bottom of the outer post tube is provided with a slider for guiding and limiting the inner post tube, thereby ensuring that the outer post tube and the inner post 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 CN112252162A (en) | 2021-01-22 |
| CN112252162B true CN112252162B (en) | 2024-07-12 |
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| 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 |
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| Country | Link |
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| CN (1) | CN112252162B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN114687291A (en) * | 2022-04-08 | 2022-07-01 | 中联重科股份有限公司 | Locking method of mechanical bridge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (3)
| 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 |
| CN107525483B (en) * | 2017-08-17 | 2019-06-28 | 安徽江淮汽车集团股份有限公司 | A kind of pressing device |
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- 2020-10-29 CN CN202011181977.XA patent/CN112252162B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
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| CN112252162A (en) | 2021-01-22 |
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