CN115787514A - Be suitable for continuous variable cross section hydraulic pressure and adjust centre form - Google Patents
Be suitable for continuous variable cross section hydraulic pressure and adjust centre form Download PDFInfo
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- CN115787514A CN115787514A CN202211498963.XA CN202211498963A CN115787514A CN 115787514 A CN115787514 A CN 115787514A CN 202211498963 A CN202211498963 A CN 202211498963A CN 115787514 A CN115787514 A CN 115787514A
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Abstract
The invention provides a hydraulic adjusting internal mold suitable for continuous variable cross-section, which comprises a hydraulic framework and a template; the template comprises a top die, a side die and a bottom die, the hydraulic framework is arranged in the template and comprises a plurality of telescopic frameworks which are distributed at equal intervals, the telescopic frameworks comprise cross braces, trusses and supporting legs, and the two trusses are correspondingly distributed at two ends of the cross braces so as to be far away from or close to each other along with the sliding of the two trusses; the two supporting legs are hinged to two ends, far away from each other, of the two trusses respectively and rotate around the hinged point along the cross section of the hydraulic inner die so as to drive the two side dies to rotate towards the center line of the trusses. The truss that the setting removed along stull length direction, the truss removes the top mould or the side form that drive both sides and contracts to break away from the concrete after the pouring is accomplished, with this realization quick drawing of patterns, improve and dismantle efficiency.
Description
Technical Field
The invention belongs to the technical field of bridge construction equipment, and particularly relates to a hydraulic adjusting internal mold suitable for a continuous variable cross section.
Background
The cantilever casting construction is a construction method for casting a concrete beam body in a symmetrical and balanced manner section by section on two sides along the bridge direction by taking a bridge pier as a center by adopting special equipment, and applying prestress section by section. The hanging basket bridge fabrication machine is a special device which is used for bearing the self weight and the construction load of a beam body and can move forward section by section when the concrete beam body is cast by a cantilever method. Traditional bridging machine need set up the centre form cooperation that corresponds shells inner wall and hang basket bridging machine and carry out bridge construction in the work progress, but current centre form generally forms through the die carrier support, and it is big to disassemble the degree of difficulty, influences the efficiency of construction.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a hydraulic adjusting internal mold suitable for continuous variable cross sections.
In order to achieve the above purpose, the invention provides the following technical scheme:
a hydraulic adjusting internal mold suitable for continuous variable cross-section comprises a hydraulic framework and a template;
the template includes:
the two top dies are arranged at the top of the hydraulic internal die and positioned at two sides of the hydraulic internal die;
the two side dies are respectively arranged on two sides of the hydraulic internal die and extend upwards to the corresponding top die;
the bottom die is arranged at the bottom of the hydraulic internal die, and two sides of the bottom die are respectively connected with the bottoms of the two side dies in a detachable mode;
the hydraulic pressure skeleton set up in inside the template, the hydraulic pressure skeleton includes the telescopic frame that a plurality of equidistance distribute, telescopic frame includes:
a cross brace;
the two trusses are correspondingly distributed at two ends of the cross brace and are assembled in a sliding mode along the length direction of the cross brace, and the two top molds are respectively connected to the two cross braces so as to be far away from or close to each other along with the sliding of the two trusses;
the two supporting legs are hinged to two ends, far away from each other, of the two trusses respectively and rotate around the hinged point along the section of the hydraulic internal mold so as to drive the two side molds to rotate towards the center line of the trusses.
Preferably, a supplementary mold is arranged above the two top molds and positioned between the two top molds for shielding a gap between the two top molds.
Preferably, the telescopic framework further comprises a push rod, the push rod is arranged in the middle of the cross brace, and the upper portion of the push rod correspondingly pushes against the complementary die.
Preferably, a convex strip extending towards the ejector rod is arranged at the center line of the supplementary mold, and a sleeve corresponding to the ejector rod is arranged at the bottom of the boss.
Preferably, the cross brace is provided with a slideway corresponding to the truss, and the truss is assembled in the slideway in a sliding manner;
two first push rods are arranged on the truss and respectively drive the two trusses to move along the slide way.
Preferably, a second push rod is hinged between the supporting leg and the truss.
Preferably, the side die is fixed on the supporting leg through a bolt;
the top die is fixed on the truss through bolts.
Preferably, support rails are arranged below two sides of the cross brace, the support rails are I-shaped steel, one end of each support rail is anchored on the top surface of the inner cavity of the poured bridge, and the other end of each support rail is fixed on the bridge fabrication machine;
the bottom of the cross brace is provided with two supporting wheels which extend to the side parts of the supporting rails respectively, a third push rod is arranged above the supporting rails, and the third push rod is over against the bottom surface of the cross brace.
Preferably, any two adjacent telescopic frameworks are fixed through a connecting rod, and the connecting rod is fixed on the cross brace through a bolt.
Preferably, the bottom of the side die is provided with a transition plate with an inclined bottom edge, and the bottom die is detachably fixed on the transition plate.
Has the beneficial effects that: the truss that the setting removed along stull length direction, the truss removes the top mould or the side form that drive both sides and contracts to break away from the concrete after the pouring is accomplished, with this realization quick drawing of patterns, improve and dismantle efficiency.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:
FIG. 1 is a schematic diagram of a hydraulic inner mold according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a hydraulic inner mold according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the structure of the hydraulic inner mold opening in the embodiment of the present invention;
FIG. 4 is a schematic diagram of the retraction of the hydraulic inner mold according to the embodiment of the present invention;
FIG. 5 is a schematic view of the structure of a mold supplement according to an embodiment of the present invention;
fig. 6 is an enlarged schematic view of a portion a in fig. 1.
In the figure: 1. carrying out top die; 2. a top rod; 3. a third push rod; 4. a truss; 5. a first push rod; 6. a second push rod; 7. a support leg; 8. side mould; 9. a support rail; 10. a support wheel; 11. bottom die; 12. a front upper cross beam; 13. an anchor rod; 14. a transition plate; 15. a sleeve; 16. supplementing a mold; 17. a cross brace; 18. a guide plate; 19. a sliding sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" as used herein are intended to be broadly construed, and may include, for example, fixed connections and removable connections; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
As shown in fig. 1 to 6, the present invention provides a hydraulic adjustment internal mold with a continuously variable cross section, which can be quickly disassembled, assembled and moved, so as to quickly perform the pouring construction and transfer of bridge sections.
The template comprises top molds 1, side molds 8 and a bottom mold 11, the two top molds 1 are arranged at the top of the hydraulic internal mold and positioned at two sides of the hydraulic internal mold so as to splice two sides of a center line of the hydraulic skeleton, the two side molds 8 are also provided, the two side molds 8 are respectively arranged at two sides of the hydraulic internal mold and extend upwards to the corresponding top molds 1; the bottom die 11 is arranged at the bottom of the hydraulic internal die, two sides of the bottom die 11 are respectively connected with the bottoms of the two side dies 8 in a detachable mode, and the periphery of the hydraulic skeleton is spliced and sealed by splicing the top die 1, the side dies 8 and the bottom die 11; the hydraulic framework is arranged inside the formwork and comprises a plurality of telescopic frameworks which are distributed at equal intervals, each telescopic framework comprises a cross brace 17, trusses 4 and supporting legs 7, the cross braces 17 are horizontally distributed along the width direction of the bridge, the two trusses 4 are correspondingly distributed at two ends of the cross braces 17 and are assembled in a sliding mode along the length direction of the cross braces 17, the two top molds 1 are respectively connected to the two cross braces 17 to be far away from or close to each other along with the sliding of the two trusses, so that the two top molds 1 are driven to be far away from or close to each other, and further the two top molds contract in the width direction of the bridge, and the inner molds are separated from solidified concrete; two landing legs 7 articulate respectively at the both ends that two trusss 4 kept away from each other to it is rotatory along the cross-section of hydraulic pressure centre form about the pin joint, when needing to demolish the centre form, demolish die block 11, then rotate through landing leg 7 and drive two side forms 8 and rotate to truss 4 central lines, with this vertical height that reduces the centre form, can make top mode 1 break away from bridge top mode 1.
In an optional embodiment, the top of two top moulds 1 is equipped with mends mould 16, mends mould 16 and is located between two top moulds 1, and two top mould 1's upper surface is pressed close to its lower surface for shelter from the gap between two top moulds 1, when two trusss 4 kept away from each other, the centre form opened, and two top moulds 1 keep away from each other, and gap grow between the two sets up and mend mould 16 and can carry out the shutoff to this gap, guarantees normal pouring demand.
In the implementation, the telescopic framework further comprises a top rod 2, the top rod 2 is arranged in the middle of the cross brace 17, the top of the top rod 2 corresponds to the top contact compensation mold 16, the top rod 2 can be a telescopic rod, such as an air cylinder, a hydraulic cylinder or a stud, preferably a stud, the stud height can be adjusted to be matched with the compensation mold 16, and the compensation mold 16 can be ejected from the bottom to the top to ensure that the compensation mold 16 cannot deform under stress in the pouring process; furthermore, a convex strip extending towards the ejector rod 2 is arranged at the central line of the supplementary mold 16, the strength of the supplementary mold 16 is enhanced through the convex strip, and in addition, when the two top molds 1 are close to each other, the two top molds 1 can be close to each other as much as possible, so that the deformation amount in the horizontal direction is increased; the bottom of the boss is provided with a sleeve 15 corresponding to the ejector rod 2, the ejector rod 2 can be inserted into the sleeve 15, the side part of the sleeve 15 is provided with a through hole, and the ejector rod 2 and the supplementary mold 16 are fixed by sequentially penetrating the sleeve 15 and the ejector rod 2 through pins.
In an optional embodiment, a cross brace 17 is provided with a slideway corresponding to the truss 4, the truss 4 is slidably assembled in the slideway, in this embodiment, the cross brace 17 and the truss 4 may be i-shaped steel, guide plates 18 correspondingly extend upwards from two sides of the cross brace 17 to form the slideway, the guide plates 18 have a narrow width in the length direction of the cross brace 17 and are located at two ends of the cross brace 17 so as to correspond to the two trusses 4, the truss 4 is provided with two first push rods 5, the two first push rods 5 respectively drive the two trusses 4 to move along the slideway, so that the two trusses 4 can be driven to drive the top mold 1, the first push rods 5 are hydraulic cylinders and are correspondingly connected to the hydraulic station, the truss 4 has a certain height in the longitudinal direction, and the upper surface of the truss is an inner wall adapted to the shape of the inner cavity of the bridge, so as to support the top mold 1. In this implementation, be equipped with sliding sleeve 19 at truss 4 near stull 17 middle part one end, sliding sleeve 19 corresponds cup joints stull 17, and with stull 17 cross-section looks adaptation, can slide about the length direction of stull, can further inject the moving trajectory of truss 4.
In an alternative embodiment, a second push rod 6 is hinged between the supporting leg 7 and the truss 4, the second push rod 6 is a hydraulic cylinder and is correspondingly connected to the hydraulic station, one end of the second push rod 6 is hinged below the truss 4, and the other end of the second push rod 6 is hinged on the inner side of the supporting leg 7 so as to form a triangle with the supporting leg 7 and the truss 4, and further the driving of the supporting leg 7 can be rapidly carried out.
In an alternative embodiment, the supporting legs 7 and the cross frame can be made of I-shaped steel or square steel, and the side die 8 is fixed on the supporting legs 7 through bolts; the top mold 1 is fixed to the truss 4 by bolts.
In an optional embodiment, support rails 9 are arranged below two sides of the cross brace 17, the support rails 9 are i-shaped steel, the support rails 9 can support a hydraulic framework, specifically, one end of the i-shaped steel is anchored on the top surface of an inner cavity of a poured bridge through an anchor rod 13 or an anchor cable, and the other end of the i-shaped steel is fixed on a bridge fabrication machine (a front upper cross beam 12 of a hanging basket is connected with the end parts of two main beams of the bridge fabrication machine) so as to support the i-shaped steel; the bottom of the cross brace 17 is provided with two supporting wheels 10 extending to the side part of the I-steel respectively, the supporting wheels 10 are fixed on the cross brace 17 in a detachable mode through wheel seats, a third push rod 3 is arranged above the I-steel, the third push rod 3 can be a hydraulic cylinder and is correspondingly connected to a hydraulic station, and the third push rod 3 is right opposite to the bottom surface of the cross brace 17 and can upwards jack up a hydraulic framework and an internal mold through stretching.
When the pouring, it is fixed to support rail 9 according to centre form size and bridge cross-section, after fixed the completion, with the assembly concatenation of telescopic skeleton handling to supporting on the rail 9, then installation supporting wheel 10, through the shrink of third push rod 3 make the supporting wheel act on the pterygoid lamina top of supporting the rail 9 bottom, then dock a plurality of telescopic skeletons, it is fixed through the connecting rod between arbitrary two adjacent telescopic skeletons, the connecting rod passes through the bolt fastening on stull 17. After the hydraulic frameworks are butted, a top die 1, a side die 8, a supplementary die 16 and a bottom die 11 are installed, the third push rod 3 is used for upwards jacking to enable the height of the inner die to be in place, then the first push rod 5 is used for outwards propping to enable the inner die to be completely propped in place, and then pouring (a first section) can be carried out.
After pouring is finished, the front upper cross beam and the support rail are loosened, a hanging basket of the bridge fabrication machine and the front upper cross beam 12 are driven to simultaneously (only the connection relation between the support rail and the front upper cross beam is simply shown in the drawing) move forwards, the support rail 9 extends forwards along with the movement of the hanging basket and is assembled, the support rail is connected with the front upper cross beam, a bottom die 11 is detached inside the hydraulic framework, the first push rod 5 retracts to drive the inner dies on two sides to move inwards, so that the side dies 8 are demolded, then the second push rod 6 retracts to enable the side dies 8 on two sides to rotate inwards, a certain gap is formed between the bottoms of the side dies 8 and the bottom surface of the inner cavity of the bridge at the moment, and the third push rod 3 retracts to enable the top die 1 and the supplementary die 16 to demold; then, the hydraulic framework moves forwards along the supporting rails 9, the inner mold is opened after the hydraulic framework moves to the proper position, then the bottom mold 11 is installed, and the next section (second section) can be poured after the third push rod 3 is jacked up.
In the process of pouring the second section, the support rails 9 at the first section are detached, the support rails 9 are riveted at the first section correspondingly, two adjacent support rails 9 are fixed through bolts, and specifically, the bottom of each support rail 9 is provided with an I-shaped steel section and is fixed with the two support rails 9 through bolts.
In this embodiment, the support rails are extended and assembled after the concrete reaches a preset strength, and in the process of extension and assembly, under the action of the support wheels, the support rails loosen the lower surfaces of the upper wing plates of the I-shaped steel and stop the I-shaped steel by the support wheels, so that the support rails are prevented from falling off.
In this embodiment, for the construction of a continuously variable cross-section bridge, the bottom of the side mold 8 is provided with a transition plate 14 with a bottom edge being an inclined edge, the bottom mold 11 is detachably fixed on the transition plate 14, in the casting process, when the bottom mold 11 of the bridge is inclined, the transition plate 14 is installed to enable the inner mold to be matched with the bridge in the direction of the bridge, in this embodiment, the corresponding positions of the side mold 8, the bottom mold 11 and the transition plate 14 are fixed through bolts and can be quickly disassembled, the inclination of the bottom edge of the transition plate 14 is matched with the direction angle of the bottom surface of the inner cavity of the bridge, the bottom mold 11 of the bridge extends horizontally to enable the transition plate 14 with the non-inclined bottom surface to be replaced, or the transition plate 14 is not arranged, and the butt joint of the bottom surface and the side mold 8 is directly performed.
In this embodiment, the supporting wheel 10 is correspondingly connected to a driving motor, and the driving motor can drive the supporting wheel 10 to move along the upper surface of the lower wing plate of the supporting rail 9, so that the inner mold advances forward.
The first push rod 5, the second push rod 6, the third push rod 3 and the driving motor are correspondingly connected with the controller, automatic control is achieved, and construction efficiency can be improved.
In one embodiment, two wheel seats corresponding to two sides of the support rail 9 are arranged at the same position, two support wheels 10 are arranged on each wheel seat, the two support wheels 10 on two sides are respectively arranged on two sides of the support rail 9, and in addition, in order to reduce the assembling time, only two support wheel 10 groups are arranged on two cross supports 17 arranged at two ends of the hydraulic framework.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the invention is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The hydraulic adjusting internal mold is suitable for a continuous variable cross section and is characterized by comprising a hydraulic framework and a template;
the template includes:
the two top dies are arranged at the top of the hydraulic internal die and positioned at two sides of the hydraulic internal die;
the two side dies are respectively arranged on two sides of the hydraulic internal die and extend upwards to the corresponding top die;
the bottom die is arranged at the bottom of the hydraulic internal die, and two sides of the bottom die are respectively connected with the bottoms of the two side dies in a detachable mode;
the hydraulic pressure skeleton set up in inside the template, the hydraulic pressure skeleton includes the telescopic frame that a plurality of equidistance distribute, telescopic frame includes:
a cross brace;
the two trusses are correspondingly distributed at two ends of the cross brace and are assembled in a sliding mode along the length direction of the cross brace, and the two top molds are respectively connected to the two cross braces so as to be far away from or close to each other along with the sliding of the two trusses;
the two support legs are hinged to two ends, far away from each other, of the two trusses respectively, and rotate along the cross section of the hydraulic internal mold about the hinged point so as to drive the two side molds to rotate towards the central line of the trusses.
2. The internal mold suitable for continuous variable cross-section hydraulic adjustment of claim 1, wherein a supplementary mold is arranged above the two top molds, and the supplementary mold is positioned between the two top molds and used for shielding a gap between the two top molds.
3. The internal mold suitable for continuous variable cross-section hydraulic adjustment of claim 2, wherein the telescopic framework further comprises a top rod, the top rod is arranged in the middle of the cross brace, and the top of the top rod correspondingly supports and contacts the supplementary mold.
4. The internal mold suitable for hydraulic adjustment with continuously variable cross section as claimed in claim 3, wherein a convex strip extending to the top rod is arranged at the center line of the supplementary mold, and a sleeve corresponding to the top rod is arranged at the bottom of the boss.
5. The internal mold suitable for hydraulic adjustment with continuously variable cross section of claim 1, wherein the cross brace is provided with a slideway corresponding to the truss, and the truss is assembled in the slideway in a sliding manner;
two first push rods are arranged on the truss and respectively drive the two trusses to move along the slide way.
6. The internal mold for hydraulic adjustment with continuously variable cross section as claimed in claim 1, wherein a second push rod is hinged between the supporting leg and the truss.
7. The adaptive hydraulic pressure adjusting inner die with the continuously variable cross section as claimed in claim 1, wherein the side die is fixed on the supporting leg through a bolt;
the top die is fixed on the truss through bolts.
8. The hydraulic adjusting internal mold suitable for the continuous variable cross-section according to claim 1, wherein support rails are arranged below two sides of the cross brace, the support rails are I-shaped steel, one end of each support rail is anchored on the top surface of an inner cavity of a poured bridge, and the other end of each support rail is fixed on a bridge fabrication machine;
the bottom of the cross brace is provided with two supporting wheels which extend to the side parts of the supporting rails respectively, a third push rod is arranged above the supporting rails, and the third push rod is over against the bottom surface of the cross brace.
9. The internal mold suitable for hydraulic adjustment with a continuously variable cross section as claimed in claim 1, wherein any two adjacent telescopic frameworks are fixed by a connecting rod, and the connecting rod is fixed on the cross brace by a bolt.
10. The internal mold suitable for hydraulic pressure adjustment with continuously variable cross section as claimed in claim 1, wherein the bottom of the side mold is provided with a transition plate with a bottom edge being an inclined edge, and the bottom mold is detachably fixed on the transition plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211498963.XA CN115787514A (en) | 2022-11-28 | 2022-11-28 | Be suitable for continuous variable cross section hydraulic pressure and adjust centre form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211498963.XA CN115787514A (en) | 2022-11-28 | 2022-11-28 | Be suitable for continuous variable cross section hydraulic pressure and adjust centre form |
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| CN115787514A true CN115787514A (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211498963.XA Pending CN115787514A (en) | 2022-11-28 | 2022-11-28 | Be suitable for continuous variable cross section hydraulic pressure and adjust centre form |
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| CN108004927A (en) * | 2017-11-30 | 2018-05-08 | 中铁二十局集团第工程有限公司 | Double limb triangle hanging basket and large span continuous rigid frame bridge cantilever beam section construction methods |
| CN111005317A (en) * | 2019-12-03 | 2020-04-14 | 中交第二航务工程局有限公司 | Hanging basket variable-section inner cavity adjustable fixed steel inner mold device and construction method |
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| DE202022105416U1 (en) * | 2021-12-02 | 2022-10-17 | China Railway Erju 4Th Engineering Co.,Ltd. | Concrete box girder internal formwork and internal formwork system |
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2022
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|---|---|---|---|---|
| FR1006445A (en) * | 1948-01-15 | 1952-04-23 | Mold for the manufacture of parts or hollow panels in molded materials and its applications in the manufacture of prefabricated houses | |
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| CN213836306U (en) * | 2020-09-15 | 2021-07-30 | 中交二航局第四工程有限公司 | General scalable suspension casting continuous beam centre form support frock |
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