CN113914219A - Frame falling device and method for bridge rapid construction - Google Patents
Frame falling device and method for bridge rapid construction Download PDFInfo
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- CN113914219A CN113914219A CN202111093875.7A CN202111093875A CN113914219A CN 113914219 A CN113914219 A CN 113914219A CN 202111093875 A CN202111093875 A CN 202111093875A CN 113914219 A CN113914219 A CN 113914219A
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 11
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000008093 supporting effect Effects 0.000 description 13
- 239000004576 sand Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 244000035744 Hura crepitans Species 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009430 construction management Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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Abstract
The application discloses a frame falling device for bridge rapid construction, which is arranged on a support column and comprises a support, a lifting piece and a driving mechanism; the support is fixed at the top end of the support column, and the lifting piece is arranged on the support in a sliding manner; the driving mechanism comprises a mounting seat, a worm wheel, a worm, a rotating piece and a motor; the mounting seat is fixed on the bracket, the worm is rotationally arranged on the mounting seat, the motor is fixed on the mounting seat, and an output shaft of the motor is fixedly connected with the end part of the worm; the lower surface of the turbine is fixedly provided with a rotating shaft which is rotatably connected with the mounting seat; the rotating piece comprises a first screw rod and a rotating rod, the bottom end of the first screw rod is fixedly connected with the top end of the rotating rod, the turbine is arranged at the bottom end of the rotating rod in a penetrating mode, the rotating rod is fixedly connected with the turbine, and the turbine is meshed with the worm. This application has improved the efficiency that the staff fell the frame.
Description
Technical Field
The application relates to the field of bridge construction, in particular to a frame falling device and method for bridge rapid construction.
Background
Constructing a bridge according to the design content; mainly refers to the contents of bridge construction technology, construction organization, construction management, construction quality and the like.
At present, in bridge construction, the frame falling device of a cast-in-place box beam formwork support mostly adopts a sand box device, namely sand is filled in a steel cylindrical sand box device, bearing capacity is provided for sand surrounding by the sand box device, after construction is finished, a valve on the sand box device is opened, sand flows out of a fine hole, the bearing capacity disappears, and frame falling is finished.
The staff finds the following defects in the long-term working process: the sand box device is adopted, the sand discharge holes are controlled by bolts, the bolts are screwed out for sand unloading, the sand discharge holes are small, once the sand box is filled with water, viscous sand in the small sand discharge holes is difficult to discharge smoothly, and the bolts are rusted to be dead to realize the sand discharge, so that the falling efficiency of workers is reduced.
Disclosure of Invention
In order to improve the efficiency of worker falling, the application provides a bridge falling device and method for rapid bridge construction.
The application provides a bridge is quick construction with falling to put up device and method adopts following technical scheme:
a frame falling device for bridge rapid construction is arranged on a support column and comprises a support, a lifting piece and a driving mechanism; the support is fixed at the top end of the support column, and the lifting piece is arranged on the support in a sliding manner;
the driving mechanism comprises a mounting seat, a worm wheel, a worm, a rotating piece and a motor; the mounting seat is fixed on the bracket, the worm is rotationally arranged on the mounting seat, the motor is fixed on the mounting seat, and an output shaft of the motor is fixedly connected with the end part of the worm; a rotating shaft is fixedly arranged on the lower surface of the turbine, the bottom end of the rotating shaft penetrates through the mounting seat, and the rotating shaft is rotatably connected with the mounting seat;
the rotating member includes first lead screw and rotary rod, wear to locate on the top of first lead screw the lifting member, the bottom of first lead screw with the top fixed connection of rotary rod, wear to locate in the bottom of rotary rod the turbine, the rotary rod with turbine fixed connection, the turbine with worm intermeshing.
By adopting the technical scheme, when the rack needs to be dropped, the worm is driven to rotate by the motor, the worm drives the worm wheel to rotate, the worm wheel drives the rotating shaft to rotate on the bracket, meanwhile, the worm wheel drives the rotating rod to rotate, the rotating rod drives the first screw rod to rotate, and the first screw rod is in threaded fit with the lifting piece, so that the lifting piece slides downwards, the rack is dropped, and meanwhile, the worm wheel and the worm have a self-locking function, so that the lifting piece cannot slide downwards under the action of self gravity; compare in background art, the phenomenon that can't arrange sand can not appear, increased holistic efficiency of falling a shelf.
Optionally, a plurality of locating pieces are fixedly arranged on the rotating rod, a plurality of locating grooves are formed in the upper surface of the turbine, the locating pieces correspond to the locating grooves one to one, and the locating pieces are matched with the locating grooves in a clamping mode.
Through adopting above-mentioned technical scheme, the turbine is at the in-process that drives the rotary rod, because a plurality of locating pieces on the rotary rod respectively with a plurality of constant head tank joint cooperations on the turbine, consequently relative rotation can not take place for turbine and rotary rod.
Optionally, a sliding part is fixedly arranged on the lower surface of the mounting seat, a sliding groove is formed in the support, the length direction of the sliding groove is perpendicular to the length direction of the worm rod, and the sliding part is in sliding fit with the sliding groove; and the mounting seat is provided with a fixing component for fixing the mounting seat.
By adopting the technical scheme, a worker can slide the sliding part along the sliding length direction, the sliding part drives the mounting seat to slide along the length direction of the sliding groove, and the mounting seat drives the worm to slide along the length direction of the sliding groove so as to enable the worm to slide towards the direction close to or far away from the worm wheel, so that the distance between the worm wheel and the worm is adjusted, and the transmission stability between the worm wheel and the worm is ensured; after the position adjustment of the mounting seat is finished, the mounting seat is fixed on the support through the fixing assembly, so that the mounting seat and the support can be prevented from continuously sliding relatively.
Optionally, the fixing assembly includes two connecting blocks and two clamping blocks, the two connecting blocks are respectively fixed to two sides of the mounting seat, the two clamping blocks are respectively fixed to lower surfaces of the two clamping blocks, and inner side walls of the two clamping blocks are respectively abutted to two sides of the bracket; the two clamping blocks are all in threaded fit with screw rods, and the end parts of the two screw rods are respectively abutted to the two sides of the support.
By adopting the technical scheme, when the position of the mounting seat needs to be adjusted, a worker can remove the fixing effect of the two screws on the two clamping blocks by rotating the screws on the two sides; the installation seat is convenient for a worker to slide along the length direction of the sliding groove, the installation seat simultaneously drives the two connecting blocks to slide along the length direction of the sliding groove, and the two connecting blocks respectively drive the two clamping blocks to slide along the length direction of the sliding groove; the inner side walls of the two clamping blocks are respectively abutted against the two sides of the bracket, so that the sliding stability of the mounting seat is improved; after the position control of mount pad finishes, the staff can be through two rotatory screws to the tip that makes two screws butt respectively in the both sides of support, thereby is fixed in the mounting bracket on the support.
Optionally, a second lead screw is rotatably arranged on the mounting seat, one end, far away from the mounting seat, of the second lead screw penetrates through the support, and the second lead screw is in threaded fit with the support.
Through adopting above-mentioned technical scheme, the staff is through rotatory second lead screw, and the second lead screw drives the mount pad and slides along the length direction in groove that slides, has increased the convenience that the staff adjusted the mount pad position.
Optionally, a hand wheel is fixedly arranged at one end, far away from the mounting seat, of the second screw rod.
Through adopting above-mentioned technical scheme, the staff rotates the second lead screw through rotatory hand wheel, has laborsaving effect.
Optionally, a knob is fixedly arranged at one end, far away from the clamping block, of the screw rod.
Through adopting above-mentioned technical scheme, the staff rotates the screw rod through rotatory knob, has laborsaving effect.
Optionally, the sliding part is a dovetail strip, and the sliding groove is a dovetail groove.
Through adopting above-mentioned technical scheme, the groove that slides not only has the guide effect to the portion of sliding, has the spacing effect to the portion of sliding simultaneously to make the portion of sliding can only slide along the length direction in groove that slides, increased the stability that the portion of sliding slided in the groove that slides.
Optionally, a fixing portion is fixedly arranged on the support, a bolt penetrates through the fixing portion, and the bolt is in threaded fit with the support column.
Through adopting above-mentioned technical scheme, the staff is fixed in the support column through the bolt with the fixed part on to be fixed in the support column with the support on, increased the convenience that the staff installed and dismantled the support.
Optionally, the application further provides a construction method of the frame dropping device for bridge rapid construction, which includes the following steps:
the method comprises the following steps: before bridge pouring construction, fixing the support at the top end of the support column, arranging the lifting piece on the support in a sliding manner, and installing the driving mechanism on the support;
step two: after the bridge pouring construction is hardened, the lifting piece is driven by the driving mechanism to slide downwards, and the frame falling is realized.
By adopting the technical scheme, when the frame does not need to be dropped, the frame dropping device has a stable supporting effect on the bridge; when the frame needs to be dropped, the lifting piece is driven by the driving mechanism to slide downwards, so that the frame is dropped, the labor-saving effect is achieved, and the overall frame dropping efficiency is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
when the rack needs to be dropped, the worm is driven to rotate through the motor, the worm drives the worm wheel to rotate, the worm wheel drives the rotating shaft to rotate on the support, meanwhile, the worm wheel drives the rotating rod to rotate, the rotating rod drives the first screw rod to rotate, the first screw rod is in threaded fit with the lifting piece, so that the lifting piece slides downwards, the rack is dropped, and meanwhile, the worm wheel and the worm have a self-locking function, so that the lifting piece cannot slide downwards under the action of self gravity; compared with the background technology, the phenomenon that sand cannot be discharged does not occur, and the overall frame falling efficiency is increased;
in the process that the turbine drives the rotating rod, because the positioning blocks on the rotating rod are respectively in clamping fit with the positioning grooves on the turbine, the turbine and the rotating rod cannot rotate relatively;
the worker can slide the sliding part along the sliding length direction, the sliding part drives the mounting seat to slide along the sliding length direction of the sliding groove, and the mounting seat drives the worm to slide along the sliding length direction of the sliding groove, so that the worm slides towards the direction close to or far away from the worm wheel, the distance between the worm wheel and the worm is adjusted, and the transmission stability between the worm wheel and the worm is ensured; after the position adjustment of the mounting seat is finished, the mounting seat is fixed on the support through the fixing assembly, so that the mounting seat and the support can be prevented from continuously sliding relatively.
Drawings
Fig. 1 is a schematic overall structure diagram of a bridge in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a frame falling device for rapid bridge construction in an embodiment of the present application.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Description of reference numerals:
1. a support pillar; 2. a stringer; 3. a cross beam; 4. a support; 41. a base plate; 411. a fixed part; 412. a bolt; 413. a sliding groove; 42. a support plate; 43. a carrier plate; 431. a lifting hole; 5. a lifting member; 51. a bearing block; 52. a lifting rod; 53. an anti-drop block; 6. a drive mechanism; 61. a mounting seat; 611. mounting blocks; 6111. a sliding part; 612. a support block; 613. an adjusting block; 62. a turbine; 621. a rotating shaft; 622. positioning a groove; 63. a worm; 64. a rotating member; 641. a first lead screw; 642. rotating the rod; 6421. positioning blocks; 65. a motor; 7. a fixing assembly; 71. connecting blocks; 72. a clamping block; 73. a screw; 74. a knob; 8. a second lead screw; 9. a handwheel.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a bridge is construction fast and is used device that falls for support bridge. Referring to fig. 1, in the present embodiment, the bridge includes a plurality of support columns 1, in the present embodiment, the number of the support columns 1 is four, and each of the four support columns 1 extends in the vertical direction. The device that falls installs in the top of support column 1, and every device top that falls all is provided with longeron 2, through crossbeam 3 fixed connection between a plurality of longerons 2.
Referring to fig. 2, the frame falling device for bridge rapid construction comprises a support 4, wherein the support 4 comprises a bottom plate 41, two supporting plates 42 and a bearing plate 43, the bottom plate 41 and the bearing plate 43 are both horizontally arranged, and the two supporting plates 42 are both vertically arranged. The bottom ends of the two support plates 42 are integrally formed with the bottom plate 41, and the top ends of the two support plates 42 are integrally formed with the bearing plate 43. Both sides of the bottom plate 41 are integrally formed with fixing portions 411, and the lower surfaces of the two fixing portions 411 abut against the top end of the supporting column 1. All wear to be equipped with two bolts 412 on every fixed part 411, every bolt 412 all with support column 1 screw-thread fit to on being fixed in support column 1 with two fixed parts 411, and then on being fixed in support column 1 with support 4.
Continuing to refer to fig. 2, the frame falling device for bridge rapid construction further comprises a lifting piece 5 and a driving mechanism 6, wherein the lifting piece 5 comprises a bearing block 51 and a lifting rod 52, the bearing block 51 is horizontally arranged, the lifting rod 52 is vertically arranged, and the top end of the lifting rod 52 and the lower surface of the bearing block 51 are integrally formed. The upper surface of the bearing plate 43 is provided with a through lifting hole 431, the bottom end of the lifting rod 52 passes through the lifting hole 431, and the lifting rod 52 is in sliding fit with the lifting hole 431. The driving mechanism 6 is installed on the upper surface of the bottom plate 41, the driving mechanism 6 is located between the two bearing blocks 51, and the driving mechanism 6 is used for driving the lifting rod 52 to lift. Two relative lateral walls of lifter 52 all integrated into one piece have anticreep piece 53, and the lower surface of two anticreep pieces 53 all flushes with the bottom of lifter 52. When the lifting rod 52 is lifted, the two anti-falling blocks 53 can limit the lifting rod 52 from continuously sliding upwards when the upper surfaces of the two anti-falling blocks 53 abut against the lower surface of the bearing block 51.
Referring to fig. 2 and 3, the driving mechanism 6 includes a mounting base 61, a worm wheel 62, a worm 63, a rotating member 64, and a motor 65, the mounting base 61 includes a mounting block 611 and two supporting blocks 612, the mounting block 611 is disposed horizontally, a lower surface of the mounting block 611 abuts against an upper surface of the base plate 41, and the mounting block 611 is fixedly connected to the base plate 41. Two supporting blocks 612 are integrally formed on the upper surface of the mounting block 611, and the two supporting blocks 612 are parallel to each other. The worm 63 extends along the horizontal direction, two ends of the worm 63 respectively penetrate through the two supporting blocks 612, and two ends of the worm 63 are respectively connected with the two supporting blocks 612 in a rotating manner. The motor 65 is mounted on the side wall of one of the supporting blocks 612, and the output shaft of the motor 65 is fixedly connected with the end part of the worm 63. The lower surface of the turbine 62 is integrally formed with a rotating shaft 621, the bottom end of the rotating shaft 621 penetrates the bottom plate 41, and the rotating shaft 621 is rotatably connected with the bottom plate 41. The rotating member 64 extends along the vertical direction, the rotating member 64 includes a first lead screw 641 and a rotating rod 642, the top end of the first lead screw 641 penetrates the bottom end of the lifting rod 52, and the first lead screw 641 is in threaded fit with the lifting rod 52. The bottom end of the first lead screw 641 and the top end of the rotating rod 642 are integrally formed, the bottom end of the rotating rod 642 penetrates through the turbine 62, and the bottom end of the rotating rod 642 is fixedly connected with the turbine 62. When the rack needs to be dropped, the worm 63 is driven to rotate by the motor 65, the worm 63 drives the worm wheel 62 to rotate, the worm wheel 62 drives the rotating shaft 621 to rotate on the support 4, meanwhile, the worm wheel 62 drives the rotating rod 642 to rotate, the rotating rod 642 drives the first screw rod 641 to rotate, and the first screw rod 641 is in threaded fit with the lifting piece 5, so that the lifting piece 5 slides downwards, and the rack is dropped.
Referring to fig. 3, a plurality of positioning blocks 6421 are integrally formed on a side wall of the rotating rod 642, and a plurality of positioning grooves 622 are formed on an upper surface of the worm gear 62. In this embodiment, the number of the positioning blocks 6421 and the positioning grooves 622 is four, the positioning blocks 6421 correspond to the positioning grooves 622 one by one, and the four positioning blocks 6421 and the four positioning grooves 622 are uniformly distributed along the circumferential direction. The four positioning blocks 6421 are respectively in snap fit with the four positioning grooves 622, and the upper surfaces of the four positioning blocks 6421 are flush with the upper surface of the turbine 62. When the worm gear 62 drives the rotating rod 642, the positioning blocks 6421 on the rotating rod 642 are respectively in snap fit with the positioning grooves 622 on the worm gear 62, so that the worm gear 62 and the rotating rod 642 cannot rotate relatively.
With continued reference to fig. 3, mount 61 further includes an adjustment block 613, adjustment block 613 being located on a side of mount 61 facing away from rotating member 64. The adjusting block 613 is vertically disposed, and the adjusting block 613 is perpendicular to the two supporting blocks 612. The lower surface of the adjusting block 613 and the upper surface of the bottom plate 41 are integrally formed, the side walls of the two supporting blocks 612 departing from the rotating part 64 and the side walls of the adjusting block 613 close to the rotating part 64 are integrally formed, and the firmness of connection between the two supporting blocks 612 is increased by the adjusting block 613.
Referring to fig. 2 and 3, the adjusting block 613 is rotatably connected with a second lead screw 8, one end of the second lead screw 8, which is far away from the adjusting block 613, passes through one of the support plates 42, the second lead screw 8 is in threaded fit with the support plate 42, and a hand wheel 9 is integrally formed at one end of the second lead screw 8, which is far away from the adjusting block 613. The worker rotates the second lead screw 8 by rotating the hand wheel 9, so as to drive the adjusting block 613 to move towards a direction close to or away from the worm wheel 62, thereby facilitating the adjustment of the distance between the worm wheel 62 and the worm 63, and further increasing the stability of the transmission between the worm wheel 62 and the worm 63.
Referring to fig. 3, two sliding portions 6111 are integrally formed on the lower surface of the mounting block 611, the length directions of the two sliding portions 6111 are perpendicular to the length direction of the worm 63, and two ends of the sliding portions 6111 are flush with two side walls of the mounting block 611 respectively. Two sliding grooves 413 are formed in the upper surface of the base plate 41, and the length directions of the two sliding grooves 413 are also perpendicular to the length direction of the worm 63. The two sliding portions 6111 are respectively located in the two sliding grooves 413, and the two sliding portions 6111 are respectively in sliding fit with the two sliding grooves 413. The two sliding grooves 413 respectively have a guiding function for the two sliding portions 6111, so that the mounting seat 61 is guided, and the sliding stability of the mounting seat 61 is improved. It is noted that, in the present embodiment, the slip portion 6111 is shaped like a dovetail. Correspondingly, the sliding groove 413 is a dovetail groove, so that the stability of the sliding part 6111 in the sliding groove 413 is further increased.
The bottom plate 41 is further provided with a fixing component 7 for fixing the mounting seat 61, in this embodiment, the fixing component 7 includes two connecting blocks 71 and two clamping blocks 72, the two connecting blocks 71 are respectively integrally formed on two opposite side walls of the mounting seat 61, and lower surfaces of the two connecting blocks 71 are abutted to an upper surface of the bottom plate 41. The two clamping blocks 72 are respectively integrally formed with one ends of the two connecting blocks 71 away from the mounting seat 61. The two clamping blocks 72 are each screw-fitted with a screw 73, and ends of the two screws 73 respectively abut against both sides of the mount base 61, thereby fixing the mount base 61 to the base plate 41. The two screws 73 are also fixedly provided with a knob 74 at an end remote from the clamping block 72, which in this embodiment is a wing nut. The staff rotates the screw 73 through rotating the knob 74, which has the labor-saving effect.
The construction method of the frame falling device for bridge rapid construction in the embodiment of the application comprises the following steps:
the method comprises the following steps: before bridge pouring construction, fixing the support 4 on the top end of the support column 1, arranging the lifting piece 5 on the support 4 in a sliding manner, and installing the driving mechanism 6 on the support 4;
step two: after the bridge pouring construction is hardened, when a frame needs to be dropped, the worm 63 is driven to rotate through the motor 65, the worm 63 drives the worm wheel 62 to rotate, the worm wheel 62 drives the rotating shaft 621 to rotate on the support 4, meanwhile, the worm wheel 62 drives the rotating rod 642 to rotate, the rotating rod 642 drives the first lead screw 641 to rotate, and the first lead screw 641 is in threaded fit with the lifting piece 5, so that the lifting piece 5 slides downwards, the frame dropping is realized, and meanwhile, the worm 63 of the worm wheel 62 has a self-locking function, so that the lifting piece 5 cannot slide downwards under the action of self gravity; compare in background art, the phenomenon that can't arrange sand can not appear, increased holistic efficiency of falling a shelf.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a bridge is construction fast is with device that falls to put up, installs on support column (1), its characterized in that: the frame falling device comprises a bracket (4), a lifting piece (5) and a driving mechanism (6); the support (4) is fixed at the top end of the support column (1), and the lifting piece (5) is arranged on the support (4) in a sliding manner;
the driving mechanism (6) comprises a mounting seat (61), a worm wheel (62), a worm (63), a rotating piece (64) and a motor (65); the mounting seat (61) is fixed on the support (4), the worm (63) is rotatably arranged on the mounting seat (61), the motor (65) is fixed on the mounting seat (61), and an output shaft of the motor (65) is fixedly connected with the end part of the worm (63); a rotating shaft (621) is fixedly arranged on the lower surface of the turbine (62), the bottom end of the rotating shaft (621) penetrates through the mounting base (61), and the rotating shaft (621) is rotatably connected with the mounting base (61);
rotating member (64) includes first lead screw (641) and rotary rod (642), wear to locate on the top of first lead screw (641) lift piece (5), the bottom of first lead screw (641) with the top fixed connection of rotary rod (642), wear to locate on the bottom of rotary rod (642) turbine (62), rotary rod (642) with turbine (62) fixed connection, turbine (62) with worm (63) intermeshing.
2. The frame falling device for bridge rapid construction according to claim 1, characterized in that: the fixed a plurality of locating pieces (6421) that are provided with on rotary rod (642), a plurality of constant head tanks (622) have been seted up to the upper surface of turbine (62), locating piece (6421) with constant head tank (622) one-to-one, locating piece (6421) with constant head tank (622) joint cooperation.
3. The frame falling device for bridge rapid construction according to claim 1, characterized in that: a sliding part (6111) is fixedly arranged on the lower surface of the mounting seat (61), a sliding groove (413) is formed in the support (4), the length direction of the sliding groove (413) is perpendicular to the length direction of the worm (63), and the sliding part (6111) is in sliding fit with the sliding groove (413); the mounting seat (61) is provided with a fixing component (7) for fixing the mounting seat (61).
4. The frame falling device for bridge rapid construction according to claim 3, characterized in that: the fixing assembly (7) comprises two connecting blocks (71) and two clamping blocks (72), the two connecting blocks (71) are respectively fixed on two sides of the mounting seat (61), the two clamping blocks (72) are respectively fixed on the lower surfaces of the two clamping blocks (72), and the inner side walls of the two clamping blocks (72) are respectively abutted against two sides of the bracket (4); screw rods (73) are in threaded fit with the two clamping blocks (72), and the end parts of the two screw rods (73) are respectively abutted to the two sides of the support (4).
5. The frame falling device for bridge rapid construction according to claim 3, characterized in that: the mounting seat (61) is provided with a second lead screw (8) in a rotating mode, one end of the mounting seat (61) is far away from the second lead screw (8) and penetrates through the support (4), and the second lead screw (8) is in threaded fit with the support (4).
6. The frame falling device for bridge rapid construction according to claim 5, wherein: and a hand wheel (9) is fixedly arranged at one end, far away from the mounting seat (61), of the second screw rod (8).
7. The frame falling device for bridge rapid construction according to claim 4, wherein: and a knob (74) is fixedly arranged at one end of the screw rod (73) far away from the clamping block (72).
8. The frame falling device for bridge rapid construction according to claim 3, characterized in that: the sliding part (6111) is a dovetail strip, and the sliding groove (413) is a dovetail groove.
9. The frame falling device for bridge rapid construction according to claim 1, characterized in that: the support is characterized in that a fixing portion (411) is fixedly arranged on the support (4), a bolt (412) penetrates through the fixing portion (411), and the bolt (412) is in threaded fit with the support column (1).
10. The construction method of the frame falling device for bridge rapid construction according to any one of claims 1 to 9, comprising the steps of:
the method comprises the following steps: before bridge pouring construction, the support (4) is fixed at the top end of the support pillar (1), the lifting piece (5) is arranged on the support (4) in a sliding mode, and the driving mechanism (6) is arranged on the support (4);
step two: after the bridge pouring construction is hardened, the lifting piece (5) is driven to slide downwards through the driving mechanism (6), and the falling is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093875.7A CN113914219A (en) | 2021-09-17 | 2021-09-17 | Frame falling device and method for bridge rapid construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093875.7A CN113914219A (en) | 2021-09-17 | 2021-09-17 | Frame falling device and method for bridge rapid construction |
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| CN113914219A true CN113914219A (en) | 2022-01-11 |
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| CN202111093875.7A Pending CN113914219A (en) | 2021-09-17 | 2021-09-17 | Frame falling device and method for bridge rapid construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506605A (en) * | 2022-10-24 | 2022-12-23 | 合肥工业大学 | Intelligent mechanical synchronous frame falling device |
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| CN204716958U (en) * | 2015-07-01 | 2015-10-21 | 济南飞越机电科技有限公司 | A kind of worm and gear movement clearance regulating device of The Cloud Terrace |
| CN109137734A (en) * | 2018-08-16 | 2019-01-04 | 中交二航局第四工程有限公司 | A kind of height can accurate adjustment relief arrangement |
| CN210340225U (en) * | 2019-08-28 | 2020-04-17 | 南京俊东机电设备有限公司 | Electric lifting rod capable of accurately adjusting height |
| JP2021038937A (en) * | 2019-08-30 | 2021-03-11 | Ｊｆｅシビル株式会社 | Displacement display device, vibration damper and civil engineering building structure |
| CN211239244U (en) * | 2020-03-07 | 2020-08-11 | 赖建龙 | Building engineering power cable erects structure |
| CN212775386U (en) * | 2020-08-26 | 2021-03-23 | 浙江万洋汽车配件有限公司 | Novel mechanical steering gear with adjustable clearance |
| CN214036812U (en) * | 2020-11-06 | 2021-08-24 | 无锡江帆精密机械制造有限公司 | Double-lead worm gear clearance compensation device |
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| CN115506605B (en) * | 2022-10-24 | 2023-10-10 | 合肥工业大学 | Intelligent mechanical synchronous falling frame device |
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