CN106400699A - Front landing leg supporting device for improving stability of longitudinal-moving via-hole construction through bridge girder erection machine - Google Patents
Front landing leg supporting device for improving stability of longitudinal-moving via-hole construction through bridge girder erection machine Download PDFInfo
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- CN106400699A CN106400699A CN201611090881.6A CN201611090881A CN106400699A CN 106400699 A CN106400699 A CN 106400699A CN 201611090881 A CN201611090881 A CN 201611090881A CN 106400699 A CN106400699 A CN 106400699A
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- 238000010276 construction Methods 0.000 title abstract description 9
- 210000001364 upper extremity Anatomy 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007792 addition Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 208000005123 swayback Diseases 0.000 description 1
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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a front landing leg supporting device for improving the stability of longitudinal-moving via-hole construction through a bridge girder erection machine. The front landing leg supporting device comprises a rear supporting unit and a front supporting unit. The end, located behind a front landing leg, of the rear supporting unit is supported on an erected T-shaped girder through an L-shaped hinged support; and the other end of the rear supporting unit supports the front landing leg provided with a plurality of rows of through holes provided with guide cylinders. The front supporting unit is located in front of the front landing leg, the lower end of the front supporting unit is supported on a pier cap of a pier through a cushion box, and the upper portion of the front supporting unit is fixedly connected with a front landing leg transverse-moving trolley through a lead screw or an oil cylinder. The lengths of the rear supporting unit and the front supporting unit are adjusted through relative rotating of threads or telescopic motion of the oil cylinder so as to adapt to relative position difference, caused by manufacturing deviation of the T-shaped beam and the pier and position variation of the front landing leg, of each hole, and effective supporting is guaranteed. Therefore, the front landing leg supporting device for improving the stability of longitudinal-moving via-hole construction through the bridge girder erection machine is simple in structure, low in cost, high in applicability, and capable of reducing front-back swinging of the front landing leg and improving the stability of longitudinal-moving via-hole construction through the bridge girder erection machine.
Description
Technical Field
The invention relates to a front supporting leg supporting device, belongs to the field of bridging equipment, and particularly relates to a front supporting leg supporting device for improving the stability of a longitudinally moving hole of a bridging machine.
Background
The bridge girder erection machine has high construction efficiency and safe reliability, and is widely applied to the construction of highway and railway bridges. With the continuous deepening of the construction of expressways and expressways in China, the beam shapes of the expressways are very similar to the beam shapes of special railway passenger lines (the speed per hour is less than 200 kilometers), special railway transportation lines and common railway lines, and in order to utilize equipment to the maximum extent and reduce the production cost, a highway and railway dual-purpose bridge girder erection machine which can meet the erection construction requirements of railway T-shaped beams and the erection construction of the T-shaped beams of the expressways is often adopted.
Traditional dual-purpose bridge crane front leg of public railway is except erectting last hole T roof beam, indulges at bridge crane host computer and moves the via hole operation, all need support on the stone pad of pier, owing to receive the restriction of pier structure, preceding leg often is single leg structure, nevertheless need bear very big load when the host computer indulges the via hole, especially the host computer via hole atress is more complicated when targetting in place soon, and the concrete appearance is: (1) the bridge girder erection machine is driven by longitudinal movement and asynchronously generates impact horizontal force; (2) the gravity center of the main frame of the bridge girder erection machine moves forward to the position near the front support leg, and the main beam of the bridge girder erection machine is overhigh in front suspension to generate downward disturbance, so that the stress on the front support leg is worse; (3) the front legs are generally high and easily sway back and forth.
The above reasons affect the continuity of the longitudinal movement of the bridge girder erection machine through the holes and can generate vibration, thereby causing the overturning of the bridge girder erection machine due to the instability of the front supporting legs. Therefore, how to improve the stability of the longitudinally-moving through hole of the bridge girder erection machine is a technical problem which needs to be solved urgently by the front supporting leg.
Disclosure of Invention
The invention mainly solves the technical problem of overturning of a bridge girder erection machine caused by instability of a front supporting leg of the bridge girder erection machine in the prior art, and provides a front supporting leg supporting device for improving the stability of a longitudinally-moving through hole of the bridge girder erection machine. The device can prevent preceding landing leg from rocking from beginning to end, improves the stability and the security of bridge girder erection machine host computer via hole to can be along with the landing leg via hole, convenient operation together.
The technical problem of the invention is mainly solved by the following technical scheme:
the utility model provides an improve preceding landing leg strutting arrangement that bridging machine moved through hole stability vertically, includes:
the rear supporting device is positioned at the rear side of the front supporting leg and is used for connecting the front supporting leg and the erected T-shaped beam;
the front supporting device is positioned on the front side of the front supporting leg and used for connecting the front supporting leg with a pier cap of a pier.
Optimized, foreleg strutting arrangement before foreleg that the aforesaid improves bridging machine and indulges and move hole stability, back strutting arrangement includes:
the L-shaped hinged support is of an L-shaped structure, and two sides of the L-shaped hinged support are supported on two side surfaces of the erected T-shaped beam through rubber pads respectively;
one end of the hinged support with the bolt is inserted into a through hole arranged on the front supporting leg and is detachably fixed on the front supporting leg through an anti-falling device;
and the length of the adjusting screw rod is adjustable, and two ends of the adjusting screw rod are respectively hinged on the L-shaped hinged support and the hinged support with the bolt.
Optimized, foreleg strutting arrangement before foreleg that the aforesaid improves bridging machine and indulges and move hole stability, accommodate the lead screw includes: a positive and negative rotation screw rod, a connecting cylinder and a rotating handle; wherein,
the middle part of the connecting cylinder is provided with a through hole, and the rotating handle is positioned in the through hole; the connecting cylinder is connected with the positive and negative rotation screw rod through positive and negative rotation threads arranged in the connecting cylinder.
Preferably, the aforesaid preceding strutting arrangement who improves the bridge girder erection machine and indulge and move stability of passing the hole, preceding strutting arrangement includes:
the pad box is positioned on a pier cap of the pier;
the box body is fixedly connected with the transverse trolley at the lower part of the front supporting leg;
and one end of the adjusting support rod is supported on the cushion box, and the other end of the adjusting support rod is fixedly connected with the box body.
Preferably, the front supporting leg supporting device for improving the stability of the longitudinally moving hole of the bridge girder erection machine is an L-shaped box body, one end part of the box body is fixedly connected with the transverse trolley at the lower part of the front supporting leg, and the other end part of the box body is fixed on the cushion box through a detachable connecting device;
the middle part of the adjusting stay bar is positioned in the box body, the bottom of the adjusting stay bar is supported on the cushion box, and the top of the adjusting stay bar is provided with a detachable handle.
Optimized, foreleg strutting arrangement who foretell improves bridging machine and indulges and move stability of passing through the hole, adjust the vaulting pole and include: a sleeve and a threaded rod; the sleeve is arranged inside the box body; the threaded rod penetrates through the inner cavity of the sleeve, the upper part of the threaded rod is provided with a detachable handle, and the lower part of the threaded rod is supported on the cushion box.
Preferably, the bottom of the adjusting support rod is supported on the cushion box through the base with the hemispherical concave surface.
Therefore, the invention has the following advantages:
(1) when the main engine of the bridge girder erection machine passes through the hole, the front supporting legs are limited through the rear supporting device and the front supporting device, the front supporting legs can be prevented from shaking forwards and backwards, and the stability and the safety of the main engine passing through the hole of the bridge girder erection machine are improved.
(2) When the front supporting leg passes through the hole, the supporting rod is adjusted to shrink by the front supporting device, the pad box is passed through the hole together with the supporting leg by the detachable connecting device, and then the supporting device is passed through the hole together with the supporting leg by the anti-falling locking device, so that the labor intensity is reduced.
Drawings
Fig. 1 shows a front view of the invention.
Fig. 2 shows the rear support device of the invention.
Fig. 3 shows the front support arrangement of the present invention.
In the figure, the position of the upper end of the main shaft,
1. a T-beam is erected; 2. a rear support device; 3. a front leg; 4. a front support device; 5. a bridge pier; 2-1, a rubber pad; 2-2. an L-shaped hinged support; 2-3, adjusting a screw rod; 2-4, a hinged support with a bolt; 2-5, an anti-falling device; 2-3-1. a screw; 2-3-2 rotating the handle; 2-3-3. a connecting cylinder; 4-1, cushion the case; 4-2. a connecting device; 4-3, adjusting the stay bar; 4-4. a box body; 4-5, a detachable handle; 4-3-1. a base; 4-3-2. a sleeve; 4-3-3, threaded rod.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
referring to fig. 1, a front supporting leg supporting device for improving stability of longitudinally moving through holes of a bridge girder erection machine of the embodiment includes: rear support means 2, front legs 3, front support means 4. The rear support device 2 is positioned behind the front support leg, one end of the rear support device is supported on the erected T-shaped beam 1, and the other end of the rear support device is supported on the front support leg 3 provided with a plurality of rows of through holes with guide cylinders through hinges and threaded screw rods. The front support device 4 is positioned at the lower end in front of the front support leg 3 and supported on a pier cap of a pier through a pad box, and the upper part of the front support device is fixedly connected with the transverse trolley at the lower part of the front support leg through a screw rod or an oil cylinder and a box body.
Referring to fig. 2, the rear support device 2 comprises a rubber pad 2-1, an L-shaped hinged support 2-2, an adjusting screw rod 2-3, a hinged support with a bolt 2-4 and an anti-falling device 2-5; the rubber pad 2-1 is fixedly connected with the L-shaped hinged support 2-2 through detachable connection; one end of the L-shaped hinged support is supported on the T-shaped beam through a rubber pad 2-1, and the other end of the L-shaped hinged support is connected with an adjusting screw rod 2-3 through a hinged shaft; the adjusting screw rod 2-3 comprises a forward and reverse rotation screw rod 2-3-1 with a hinge lug, a rotating handle 2-3-2 and a connecting cylinder 2-3-3, wherein the middle part of the connecting cylinder is provided with a through hole, and the two ends of the connecting cylinder are provided with forward and reverse rotation thread through holes; one end of a hinged support 2-4 with a bolt is connected with the adjusting screw rod through a hinged shaft, and the other end is inserted into a through hole of the front support leg 3; the anti-falling device 2-5 is used for detachably connecting the hinged support 2-4 with the front supporting leg 3, when the front supporting leg 3 longitudinally moves through the hole, the rear supporting device 2 can be used for passing the hole together with the front supporting leg 3, the workload of manually carrying the hole and the bolt of the rear supporting device 2 is reduced, and the labor intensity is reduced. The length of the adjusting screw rod 2-3 is adjusted by driving the connecting cylinder 2-3-3 to rotate relative to the screw rod 2-3-1 at the two ends through the rotation of the rotary handle 2-3-2, so that the relative position deviation between the front supporting leg 3 and the erected T-shaped beam is adapted, and the rear supporting device 2 can be guaranteed to be effectively supported.
The front supporting device 4 comprises a pad box 4-1 supported on the pier cap of the pier 5, a connecting device 4-2, an adjusting support rod 4-3, a box body 4-4 fixedly connected with a transverse trolley at the lower part of the front supporting leg 3 and a detachable handle 4-5. The pad box 4-1 is connected with the box body 4-4 through the detachable connecting device 4-2, so that the pad box 4-1 can be conveniently passed through holes along with the front supporting legs 3 when the front supporting legs 3 are passed through the holes, and the labor intensity is reduced; the adjusting support rod 4-3 comprises a base 4-3-1 with a hemispherical concave surface, a sleeve 4-3-2 fixed in the box body with threads and a threaded rod 4-3-3, one end of the adjusting support rod 4-3 is supported on the cushion box 4-1, and the other end is fixedly connected with the box body 4-4; the convex surface at the bottom end of the threaded rod 4-3-3 is hemispherical, and the top end penetrates through the box body and is provided with a detachable handle 4-5 at the upper part. The length of the adjusting support rod 4-3 is adjusted by rotating the detachable handle 4-5 to drive the threaded rod 4-3-3 to rotate relative to the sleeve 4-3-2 through threads, so that the relative position deviation between the trolley at the lower part of the front support leg 3 and the pier cap of the pier 5 is adapted, and the front support device can be effectively supported.
After adopting above-mentioned structure, when the host computer of bridging machine moves the hole by hand: the rear supporting device is supported on the erected T-shaped beam, the length of the screw rod is adjusted, and the rear supporting device is effectively supported behind the front supporting leg; the front supporting device is supported on a pier, and the length of the screw rod is adjusted or the front supporting device is effectively supported in front of the front supporting leg through the stretching of the oil cylinder. When the front support leg is used for passing through the hole: the rear leg device provided with the anti-falling device is used for passing holes together with the front leg; the front supporting device comprising the cushion box is also subjected to hole passing together with the front supporting leg through the detachable connecting device; when the bridge girder erection machine is used for erecting a girder: the front supporting device is enabled to support and limit and release the front supporting legs by adjusting the contraction of the supporting rods, so that the front supporting legs are changed into flexible leg type supporting the front end of the bridge girder erection machine.
Therefore, the front supporting leg supporting device for improving the stability of the longitudinally-moving through hole of the bridge girder erection machine has the following effects:
1. when the main engine of the bridge girder erection machine passes through the hole, the front supporting legs are limited through the rear supporting device and the front supporting device, the front supporting legs can be prevented from shaking forwards and backwards, and the stability and the safety of the main engine passing through the hole of the bridge girder erection machine are improved.
2. When the front supporting leg passes through the hole, the supporting rod or the oil cylinder is adjusted to shrink by the front supporting device, the pad box is passed through the hole together with the supporting leg through the detachable connecting device, and the rear supporting device is also passed through the hole together with the supporting leg through the anti-falling locking device, so that the labor intensity is reduced.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although more is used herein 1. erected T-beam; 2. a rear support device; 3. a front leg; 4. a front support device; 5. a bridge pier; 2-1, a rubber pad; 2-2. an L-shaped hinged support; 2-3, adjusting a screw rod; 2-4, a hinged support with a bolt; 2-5, an anti-falling device; 2-3-1. a screw; 2-3-2 rotating the handle; 2-3-3. a connecting cylinder; 4-1, cushion the case; 4-2. a connecting device; 4-3, adjusting the stay bar; 4-4. a box body; 4-5, a detachable handle; 4-3-1. a base; 4-3-2. a sleeve; 4-3-3, threaded rod, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (7)
1. The utility model provides an improve preceding landing leg strutting arrangement that bridging machine moved through hole stability vertically which characterized in that includes:
the rear supporting device (2) is positioned at the rear side of the front supporting leg (3) and is used for connecting the front supporting leg (3) and the erected T-shaped beam (1);
the front supporting device (4) is positioned on the front side of the front supporting leg (3) and used for connecting the front supporting leg (3) and a pier cap of a pier.
2. The front supporting leg supporting device for improving the stability of longitudinally moving through holes of a bridge girder erection machine according to claim 1, wherein the rear supporting device (2) comprises:
the L-shaped hinged support (2-2) is of an L-shaped structure, and two sides of the L-shaped hinged support are supported on two side surfaces of the erected T-shaped beam (1) through rubber pads (2-1) respectively;
one end of the hinged support (2-4) with the bolt is inserted into a through hole arranged on the front supporting leg (3) and is detachably fixed on the front supporting leg (3) through an anti-falling device (2-5);
and the length of the adjusting screw rod (2-3) is adjustable, and two ends of the adjusting screw rod are respectively hinged on the L-shaped hinged support (2-2) and the hinged support (2-4) with the bolt.
3. The front supporting leg supporting device for improving the stability of the longitudinal movement of the through hole of the bridge girder erection machine according to claim 1,
the adjusting screw (2-3) comprises: a positive and negative rotation screw rod (2-3-1), a connecting cylinder (2-3-3) and a rotary handle (2-3-2); wherein,
a through hole is formed in the middle of the connecting cylinder (2-3-3), and the rotating handle (2-3-2) is positioned in the through hole; the connecting cylinder (2-3-3) is connected with the forward and reverse screw rod (2-3-1) through a forward and reverse screw thread arranged in the connecting cylinder.
4. A front leg support arrangement for improving the stability of a bridge girder erection machine longitudinally moving through a hole according to claim 1, wherein the front support arrangement (4) comprises:
the pad box (4-1) is positioned on a pier cap of the pier (5);
the box body (4-4) is fixedly connected with the transverse trolley at the lower part of the front supporting leg (3);
one end of the adjusting support rod (4-3) is supported on the cushion box (4-1), and the other end of the adjusting support rod is fixedly connected with the box body (4-4).
5. The front supporting leg supporting device for improving the stability of the longitudinal movement of the through hole of the bridge girder erection machine according to claim 4,
the box body (4-4) is an L-shaped box body, the end part of one side of the box body is fixedly connected with the transverse trolley at the lower part of the front supporting leg (3), and the other side of the box body is fixed on the cushion box (4-1) through a detachable connecting device (4-2);
the lower part of the adjusting support rod (4-3) is positioned in the box body (4-4), the bottom of the adjusting support rod is supported on the cushion box (4-1), and the top of the adjusting support rod is provided with a detachable handle (4-5).
6. A front leg support arrangement for improving the stability of a bridge girder erection machine longitudinally moving through a hole according to claim 4, wherein said adjusting stay bar (4-3) comprises: a sleeve (4-3-2) and a threaded rod (4-3-3); the sleeve (4-3-2) is arranged inside the box body (4-4); the threaded rod (4-3-3) penetrates through the inner cavity of the sleeve (4-3-2), the upper part of the threaded rod is provided with a detachable handle (4-5), and the lower part of the threaded rod is supported on the cushion box (4-1).
7. The front leg supporting device for improving the stability of longitudinally moving holes of a bridge girder erection machine according to claim 4, wherein the bottom of the adjusting stay bar (4-3) is supported on the pad box (4-1) through a base (4-3-1) with a hemispherical concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090881.6A CN106400699B (en) | 2016-12-01 | 2016-12-01 | A kind of front leg strut support device improving Bridge Erector vertical shift via stability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090881.6A CN106400699B (en) | 2016-12-01 | 2016-12-01 | A kind of front leg strut support device improving Bridge Erector vertical shift via stability |
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| CN106400699B CN106400699B (en) | 2018-09-18 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106835993A (en) * | 2017-03-07 | 2017-06-13 | 石家庄铁道大学 | Mobile formwork front leg strut base |
| CN108571620A (en) * | 2018-05-31 | 2018-09-25 | 中国水利水电第四工程局有限公司 | A kind of adjustable support guide rail that jacking construction uses in the process |
| CN109893796A (en) * | 2019-03-14 | 2019-06-18 | 陕西铁路工程职业技术学院 | A kind of high-speed rail Bridge Erector crosses across operation anti-falling safe rope device |
| CN111691307A (en) * | 2020-06-24 | 2020-09-22 | 中交第二航务工程局有限公司 | Front support leg supporting and limiting device of bridge girder erection machine and mounting method |
| CN112921817A (en) * | 2021-02-04 | 2021-06-08 | 中铁五局集团有限公司 | Steel support for equivalent extension bridge girder erection machine stand column and use method thereof |
| CN114150589A (en) * | 2021-12-17 | 2022-03-08 | 中铁高新工业股份有限公司 | Rotary support applied to curved beam erecting and bridge erecting machine |
| CN118407341A (en) * | 2024-07-02 | 2024-07-30 | 淄博市特种设备检验研究院 | Bridge girder erection machine for road bridge erection construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106835993A (en) * | 2017-03-07 | 2017-06-13 | 石家庄铁道大学 | Mobile formwork front leg strut base |
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| CN109893796A (en) * | 2019-03-14 | 2019-06-18 | 陕西铁路工程职业技术学院 | A kind of high-speed rail Bridge Erector crosses across operation anti-falling safe rope device |
| CN109893796B (en) * | 2019-03-14 | 2020-09-22 | 陕西铁路工程职业技术学院 | Anti-falling safety rope device for crossing operation of high-speed rail bridge girder erection machine |
| CN111691307A (en) * | 2020-06-24 | 2020-09-22 | 中交第二航务工程局有限公司 | Front support leg supporting and limiting device of bridge girder erection machine and mounting method |
| CN112921817A (en) * | 2021-02-04 | 2021-06-08 | 中铁五局集团有限公司 | Steel support for equivalent extension bridge girder erection machine stand column and use method thereof |
| CN114150589A (en) * | 2021-12-17 | 2022-03-08 | 中铁高新工业股份有限公司 | Rotary support applied to curved beam erecting and bridge erecting machine |
| CN118407341A (en) * | 2024-07-02 | 2024-07-30 | 淄博市特种设备检验研究院 | Bridge girder erection machine for road bridge erection construction |
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