CN211973149U - Width-variable supporting leg and bridge erecting machine and beam replacing machine using same - Google Patents
Width-variable supporting leg and bridge erecting machine and beam replacing machine using same Download PDFInfo
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- CN211973149U CN211973149U CN201922194612.XU CN201922194612U CN211973149U CN 211973149 U CN211973149 U CN 211973149U CN 201922194612 U CN201922194612 U CN 201922194612U CN 211973149 U CN211973149 U CN 211973149U
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- nose girder
- guide beam
- travelling car
- girder
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Abstract
The utility model relates to a bridge trades a field, in particular to landing leg of variable width and use frame bridge crane and trade roof beam machine of this landing leg. Including the nose girder and be located a pair of travelling car of nose girder below, pass through supporting arm connection between nose girder and the travelling car, every support arm all includes the symmetrical support unit who sets up in nose girder and travelling car both sides, every support unit all includes two first supporting parts and a second supporting part, two first supporting parts articulate respectively on corresponding nose girder and travelling car, the one end that the nose girder was kept away from to two first supporting parts is passed through the second supporting part and is connected, first supporting part can be for nose girder and travelling car swing with the distance of adjustment second supporting part for nose girder and travelling car. In this application, through first supporting part and nose girder and travelling car articulated, steerable second supporting part is for the distance of nose girder and travelling car, and then effectively improves the trafficability characteristic of beam piece, and has avoided appearing the problem that surpasss the width clearance.
Description
Technical Field
The utility model relates to a bridge trades a field, in particular to landing leg of variable width and use frame bridge crane and trade roof beam machine of this landing leg.
Background
The bridge girder erection machine is equipment for placing a prefabricated girder piece on a prefabricated pier, and the girder replacement machine is mainly equipment for removing a girder piece with a defect from the pier and placing a new girder piece on the pier again, and has the main function of lifting the girder piece, conveying the girder piece to the position and then putting down the girder piece.
The frame bridge machine all supports through the landing leg with trading the roof beam machine in the use, and the roof beam piece is removing the in-process, can pass from the landing leg, and current landing leg is mostly fixed, and its width can't change, when the roof beam piece width is great, is unfavorable for the passing through of roof beam piece.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a landing leg of variable width and use bridge crane and the roof beam machine of trading of this landing leg to solve the partial technical problem who mentions in the above-mentioned background art at least.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a landing leg of variable width, including the nose girder and be located a pair of travelling car of nose girder below, be connected through the support arm between nose girder and the travelling car, every support arm all includes the support element of symmetry setting in nose girder and travelling car both sides, every support element all includes two first supporting parts and a second supporting part, two first supporting parts articulate respectively on corresponding nose girder and travelling car, the one end that the nose girder was kept away from to two first supporting parts is passed through the second supporting part and is connected, first supporting part can be for nose girder and travelling car swing in order to adjust the distance of second supporting part for nose girder and travelling car.
Preferably, the supporting unit is connected with a first driving mechanism and a first limiting mechanism, the first driving mechanism is used for driving the first supporting portion to swing relative to the guide beam and the moving trolley so as to adjust the distance between the second supporting portion and the moving trolley, and the first limiting mechanism is used for limiting the swing of the first supporting portion.
Preferably, the guide beam and the movable trolley are respectively provided with a connecting seat at the position corresponding to the first supporting part of the supporting unit, and the first supporting part is hinged on the corresponding connecting seat.
Preferably, the support unit is disposed between the guide beam and the corresponding connection seat on the traveling car.
Preferably, all be equipped with the pivot on the first supporting part of support unit, the pivot is all inserted in the pivot hole of seting up on the corresponding connecting seat, and the length direction of pivot parallels with the length direction of second supporting part, and first stop gear is the round pin axle, all offers on corresponding pivot and the connecting seat hole to be used for round pin axle male pinhole, and first actuating mechanism is the driving motor who sets up on the connecting seat, and the one end of pivot extends the pivot hole and drives rotatoryly through driving motor.
Preferably, the two first supporting portions and the one second supporting portion constitute a C-shaped structure.
A bridge erecting machine comprises supporting legs.
A beam changing machine comprises supporting legs.
Has the advantages that: in this application, can form a notch between first supporting part and the second supporting part, then form the lintel hole of being convenient for the passing of roof beam piece between the corresponding notch, it is articulated with nose girder and travelling car through first supporting part, steerable second supporting part is for the distance of nose girder and travelling car, and then the width of the change support arm of looks, and then effectively improve the trafficability characteristic of roof beam piece, and the effectual problem of exceeding the width limit has avoided appearing.
Drawings
Fig. 1 is a schematic structural view of the middle support arm of the present invention in the unfolded state.
Fig. 2 is a schematic structural diagram of the middle support arm in the contracted state of the present invention.
Fig. 3 is a schematic structural diagram of the support unit of the present invention.
Figure 4 is a schematic view of the installation in place of the apparatus of the present invention.
Fig. 5 is a schematic diagram of the old beam in the present invention.
Fig. 6 is an installation schematic diagram of the new beam in the present invention.
Fig. 7 is a schematic connection diagram of the middle guide beam, the moving trolley and the support legs of the present invention.
Reference numerals:
1. a guide beam; 2. moving the trolley; 301. a first support section; 302. a second support portion; 303. a rotating shaft; 401. a first drive mechanism; 402. a first limit mechanism; 5. a connecting seat; 601. a first girder transporting special line; 602. the second girder train.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are some, but not all embodiments of the invention. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
Referring to fig. 1-3 and 7, the present application provides a variable-width leg, including a guide beam 1 and a pair of mobile dollies 2 located below the guide beam 1, the guide beam 1 is connected to the mobile dollies 2 through support arms, each support arm includes support units symmetrically disposed on both sides of the guide beam 1 and the mobile dollies 2, each support unit includes two first support portions 301 and one second support portion 302, the two first support portions 301 are respectively hinged to the corresponding guide beam 1 and the mobile dollies 2, one ends of the two first support portions 301 far away from the guide beam 1 are connected through the second support portion 302, the first support portions 301 can swing relative to the guide beam 1 and the mobile dollies 2 to adjust a distance of the second support portions 302 relative to the guide beam 1 and the mobile dollies 2.
In this scheme, the structure of the supporting unit is specifically disclosed, through setting up first supporting portion 301 and second supporting portion 302, then can realize the swing of supporting unit for nose girder 1 and travelling car 2, because of second supporting portion 302 sets up the one end of keeping away from first supporting portion 301, consequently can form a notch between first supporting portion 301 and the second supporting portion 302, then form the lintel hole between the corresponding notch, can be convenient for the passing of roof beam piece, through first supporting portion 301 and nose girder 1 and travelling car 2 are articulated, the controllable second supporting portion 302 is for nose girder 1 and travelling car 2's distance, change the length of notch part on the perpendicular bridge beam direction promptly, and then the width of change the support arm of change mutually, and then effectively improve the trafficability of roof beam piece, and the effectual problem of having avoided appearing surpassing the width limit.
The supporting unit is connected with a first driving mechanism 401 and a first limiting mechanism 402, the first driving mechanism 401 is used for driving the first supporting portion 301 to swing relative to the guide beam 1 and the moving trolley 2 so as to adjust the distance between the second supporting portion 302 and the guide beam 1 and the moving trolley 2, and the first limiting mechanism 402 is used for limiting the swing of the first supporting portion 301.
In this scheme, set up first actuating mechanism 401 then can be used to drive first supporting part 301 for the swing of guide beam 1 and travelling car 2 to adjustment support element's width sets up first stop gear 402 then can be used to retrain the swing of first supporting part 301, and then fixes the support element so that the construction.
The guide beam 1 and the movable trolley 2 are provided with connecting seats 5 at the positions corresponding to the first supporting parts 301 of the supporting units, and the first supporting parts 301 are hinged on the corresponding connecting seats 5.
In this scheme, through setting up connecting seat 5, then be convenient for the unit with the nose girder 1 with the travelling car 2 between be connected to the overall stability of structure has been strengthened.
The supporting unit is arranged between the guide beam 1 and the corresponding connecting seat 5 on the movable trolley 2.
In this scheme, mainly optimize connecting seat 5 and the position of support element, hoist and mount and remove the beam piece through the hanging beam dolly above that because of nose girder 1 needs, consequently nose girder 1 can bear great weight, consequently through setting up the support element between corresponding connecting seat 5 on nose girder 1 and travelling car 2, also can make the support element play the supporting role to connecting seat 5 on the one hand, thereby the effect of stable structure has been played, and also can reduce the harm of external force to articulated department.
All be equipped with pivot 303 on supporting unit's the first supporting part 301, pivot 303 all inserts the pivot 303 that sets up on the corresponding connecting seat 5 downthehole, the length direction of pivot 303 parallels with the length direction of second supporting part 302, first stop gear 402 is the round pin axle, all offer on corresponding pivot 303 and the connecting seat 5 hole and be used for round pin axle male pinhole, first actuating mechanism 401 is the driving motor who sets up on connecting seat 5, pivot 303 hole is extended to the one end of pivot 303 and is driven rotatoryly through driving motor.
The scheme discloses a specific connection relation between the supporting unit and the connecting seat 5, the rotation between the supporting unit and the connecting seat 5 can be realized by matching the rotating shaft 303 on the first supporting part 301 with the rotating shaft 303 hole on the connecting seat 5, the rotating shaft 303 is restrained by the pin shaft and the swinging of the supporting unit can be limited, the condition that the construction is influenced by the swinging of the supporting unit due to external force is avoided in the construction process, the rotating shaft 303 can be driven to rotate by the first driving mechanism 401, so as to control the swinging of the supporting unit, for example, an annular groove can be formed at one end of the rotating shaft 303, which extends out of the rotating shaft 303 hole, the driving motor can drive the rotating shaft 303 to rotate by matching a belt with the annular groove, the driving motor can also drive the gear to rotate, one end of the rotating shaft 303, which extends out of the rotating shaft 303 hole, can also correspond to a connecting gear, and, and the first driving mechanism 401 may be a worm screw, and the swing of the supporting unit is realized by the cooperation between the two.
In this scheme, the pin shaft is an electric pin shaft, and can be plugged into and pulled out of the corresponding pin hole, so that construction is facilitated.
Two first supporting portions 301 and one second supporting portion 302 constitute a C-shaped structure.
In this embodiment, the shape of the supporting unit is mainly disclosed, i.e. the supporting unit can be C-shaped, and it should be emphasized that the C-shaped is similar to C in shape, but not necessarily identical to C, and for example, each portion may be formed by a straight line segment, or a chamfer or the like may be formed inside.
The application provides a bridge girder erection machine, including foretell landing leg.
In this embodiment, the support legs can be used in a bridge erecting machine, so that the width of the support legs can be changed conveniently in the bridge erecting process.
The application provides a trade roof beam machine, includes foretell landing leg.
In the embodiment, the supporting legs can be used for the beam replacing machine, so that the width of the supporting legs can be changed conveniently in the beam replacing process.
The utility model provides a landing leg can refer to following method and be under construction:
firstly, preparation before construction is carried out, steel rails and rail sections at two ends of a beam piece to be replaced are cut, and a certain limit may be occupied after equipment installation is completed, so that an upright column of a contact net in a beam span area to be replaced needs to be rotated by 90 degrees, and the contact net needs to be pulled out.
Referring to fig. 4, in the first step, a guide beam 1 is supported and moved to the position above a hole to be replaced by a pair of movable trolleys 2, two ends of the guide beam 1 are respectively provided with a supporting arm, the other ends of the two supporting arms are connected with the movable trolleys 2 which are close to each other, the movable trolleys 2 are positioned on existing bridges on two sides of the hole to be replaced, a first special beam transporting line is moved to the existing bridge on one side of the guide beam 1, and a second special beam transporting line 602 transports a new beam to the existing bridge on the other side of the guide beam 1;
the first girder transport column 601 described here moves to one side of the guide beam 1, and the second girder transport column 602 moves to the other side of the guide beam 1, which means a state after transportation, that is, a position of final landing, and does not mean a sequence of movement of the first girder transport column 601, the moving cart 2, and the second girder transport column 602. Preferably, the second special beam carrying line 602, the movable trolley 2 and the first special beam carrying line 601 are sequentially arranged in the direction towards the construction site to synchronously enter the site, so that the positioning efficiency is increased.
It should be noted that, when the guide beam 1 enters a field, the supporting unit is in a contracted state, after the device is in place, the first driving mechanism 401 connected to the supporting unit, i.e., the driving motor, is controlled to start working, and the driving motor drives the rotating shaft 303 to rotate, so as to drive the first supporting portion 301 to swing relative to the guide beam 1 and the moving trolley 2, so that the distance between the second supporting portion 302 and the guide beam 1 and the moving trolley 2 is increased, and when the maximum notch width state is reached, the first limiting mechanism 402 limits the swing of the first supporting portion 301, i.e., the pin shaft is inserted into the rotating shaft 303 and the pin hole of the connecting seat 5. At this point the equipment is ready. It should be noted that, in order to ensure the stability of the whole structure when the supporting units are opened, the supporting units on the two moving trolleys 2 should be opened respectively, that is, the supporting unit on one of the moving trolleys 2 is opened first, and after the supporting unit is limited, the supporting unit on the other moving trolley 2 is opened and limited.
Referring to fig. 5, in the second step, the two hanging beam trolleys on the guide beam 1 are matched with the two girder carrying trolleys on the first girder transporting special column to hoist the old girder to the first girder transporting special column;
the two girder-carrying trolleys on the first beam-carrying train move to a position close to the guide beam 1, the end part of the girder is placed down by the girder-carrying trolleys close to the first beam-carrying train, so that the girder is supported on the girder-carrying trolleys far away from the guide beam 1, the girder-carrying trolleys move synchronously with the girder-carrying trolleys far away from the first beam-carrying train until the girder-carrying trolleys far away from the first beam-carrying train move to a position close to the end part of the guide beam 1, the girder is placed down, so that the other end of the girder is supported on the girder-carrying trolleys close to the guide beam 1, and after the two girder-carrying trolleys drive the girder to move to a designated position on the first beam-carrying train, the first beam-carrying train drives the girder to move to a girder placing area.
Referring to fig. 6, in the third step, the new beam is hoisted to the hole site to be replaced by using the two hanging beam trolleys on the guide beam 1 and the two beam carrying trolleys on the second beam carrying train 602.
The new beam for replacement is placed on two beam carrying trolleys on the second special beam transport column 602, the two beam carrying trolleys are supported at two ends of a beam piece, the two beam hanging trolleys move to one end, close to the second special beam transport column 602, of the guide beam 1, the end, close to the guide beam 1, of the beam piece is hung up through the beam hanging trolley far away from the second special beam transport column 602 and moves towards the direction of the first special beam transport column synchronously with the beam carrying trolleys far away from the guide beam 1 until the second beam carrying trolleys move to the position close to the end part of the guide beam 1, the beam hanging trolley near the second special beam transport column 602 lifts the beam piece, the two beam hanging trolleys move at the lower end of the guide beam 1, and the hung beam piece is erected at a position to be replaced.
And step four, the movable trolley 2 drives the guide beam 1 to move to the position above the next frame replacing hole site, the first special beam transporting column transports the removed old beam to a specified position and then returns to one side of the guide beam 1, the second special beam transporting column 602 transports a new beam to be replaced to the other side of the guide beam 1, the old beam is removed and the new beam is installed again, and the step five is repeated for multiple times according to actual conditions.
And after the construction is finished, the supporting units are contracted, and the equipment is withdrawn in sequence.
And finally, welding the cut steel rail, filling the railway ballast, tamping the railway ballast by using a tamping car, recovering a contact net, and finishing the replacement work of the bridge.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. The supporting leg with the variable width comprises a guide beam and a pair of movable trolleys located below the guide beam, wherein the guide beam is connected with the movable trolleys through supporting arms.
2. The variable-width outrigger of claim 1 wherein the support unit is connected to a first drive mechanism and a first limit mechanism, the first drive mechanism is configured to drive the first support portion to swing relative to the guide beam and the traveling trolley to adjust the distance between the second support portion and the guide beam and the traveling trolley, and the first limit mechanism is configured to limit the swing of the first support portion.
3. A variable width leg as claimed in claim 2, wherein the guide beam and the moving cart are provided with connecting seats at positions corresponding to the first supporting portions of the supporting units, and the first supporting portions are hinged to the corresponding connecting seats.
4. A variable width leg as claimed in claim 3, wherein the support unit is provided between the guide beam and a corresponding attachment seat on the dolly.
5. The variable-width leg as claimed in claim 4, wherein each of the first supporting portions of the supporting units has a rotating shaft inserted into a corresponding rotating shaft hole formed in the connecting base, the length direction of the rotating shaft is parallel to the length direction of the second supporting portion, the first limiting mechanism is a pin, each of the corresponding rotating shaft and the corresponding connecting base hole has a pin hole for inserting the pin, the first driving mechanism is a driving motor disposed on the connecting base, and one end of the rotating shaft extends out of the rotating shaft hole and is driven to rotate by the driving motor.
6. A variable width leg as claimed in any one of claims 1 to 5, wherein the two first support portions and a second support portion form a C-shaped structure.
7. A bridge girder erection machine, comprising the leg of any one of claims 1 to 6.
8. A beam exchanger comprising a leg as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194612.XU CN211973149U (en) | 2019-12-09 | 2019-12-09 | Width-variable supporting leg and bridge erecting machine and beam replacing machine using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194612.XU CN211973149U (en) | 2019-12-09 | 2019-12-09 | Width-variable supporting leg and bridge erecting machine and beam replacing machine using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211973149U true CN211973149U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922194612.XU Active CN211973149U (en) | 2019-12-09 | 2019-12-09 | Width-variable supporting leg and bridge erecting machine and beam replacing machine using same |
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| CN (1) | CN211973149U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699902A (en) * | 2021-09-28 | 2021-11-26 | 中铁第五勘察设计院集团有限公司 | Beam changing equipment |
| CN114263125A (en) * | 2021-12-23 | 2022-04-01 | 中铁第五勘察设计院集团有限公司 | Trade roof beam machine bridge floor braced system and trade roof beam machine |
-
2019
- 2019-12-09 CN CN201922194612.XU patent/CN211973149U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699902A (en) * | 2021-09-28 | 2021-11-26 | 中铁第五勘察设计院集团有限公司 | Beam changing equipment |
| CN114263125A (en) * | 2021-12-23 | 2022-04-01 | 中铁第五勘察设计院集团有限公司 | Trade roof beam machine bridge floor braced system and trade roof beam machine |
| CN114263125B (en) * | 2021-12-23 | 2023-08-08 | 中铁第五勘察设计院集团有限公司 | Bridge deck supporting system of beam changing machine and beam changing machine |
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