CN114775451A - Pushing device for small steel box girder construction - Google Patents
Pushing device for small steel box girder construction Download PDFInfo
- Publication number
- CN114775451A CN114775451A CN202210439139.0A CN202210439139A CN114775451A CN 114775451 A CN114775451 A CN 114775451A CN 202210439139 A CN202210439139 A CN 202210439139A CN 114775451 A CN114775451 A CN 114775451A
- Authority
- CN
- China
- Prior art keywords
- box girder
- steel box
- main frame
- frame body
- guide rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a pushing device for small-sized steel box girder construction, which comprises a lifting device for jacking a steel box girder and a bridge support for placing the lifting device and the steel box girder, wherein a supporting guide rail is fixedly arranged on the bridge support, and the extension length of the supporting guide rail is consistent with the displacement distance required by the installation of the steel box girder; a main frame body for installing a lifting device is arranged on the supporting guide rail, and the main frame body is in transmission connection with the supporting guide rail through a driving gear and a rack which are meshed in a matching manner; the scheme can ensure that the steel box girder keeps a constant and stable moving speed for installation in the installation process, thereby avoiding multiple contact between the steel box girder and the bridge pier and reducing the phenomenon of excessive collision and damage between the steel box girder and the bridge pier; meanwhile, the deviation adjusting mechanism capable of synchronously operating is arranged on the main frame body, so that the deviation adjusting and correcting are carried out in the stable moving process of the steel box girder, and the accuracy of the installation position of the steel box girder is guaranteed.
Description
Technical Field
The invention relates to the technical field of steel box girder construction, in particular to a pushing device for small-sized steel box girder construction.
Background
The construction process of the bridge is various and covers all aspects, the installation and the positioning of the steel box girder are the most important links, and in the construction process of the steel box girder, because of the complexity of fields, such as crossing highways, crossing urban railway, crossing high-speed railways, crossing ports with navigation requirements, crossing required roads with safe driving requirements and the like, the steel box girder needs to be integrally moved to a designed target position after being assembled in a safe place to ensure the safety of construction due to the influence of the complex fields and working conditions.
At present, two types of equipment are mainly used for bridge pushing, one type is that a steel strand is adopted for dispersion traction, after beam sections on two sides of a closure section are finished, the two beam sections are connected by using a rigid framework, traction steel strands and jacks are arranged on two sides of the beam sections, after the closure section is lifted, the closure section is closed by the jacks and the steel strands, and the width of the closure section is reduced to finish closure; the other type is a jacking and horizontal pushing mode by adopting a hydraulic oil cylinder, the lifting and horizontal pushing mode is realized by only arranging the hydraulic oil cylinder on the top surface of each spaced bridge support to lift and horizontal push the steel box girder, in the moving process, the stroke distance of the steel box girder is limited by the stroke of the hydraulic oil cylinder, and the steel box girder can be moved and installed only by lifting and pushing the hydraulic oil cylinder for multiple times, so that a large amount of labor hour is consumed in the moving process, the efficiency is low, and when the hydraulic oil cylinder is lifted for multiple times, the fatigue damage phenomenon of the device is easily caused, and the lifting of the steel box girder has errors or even the steel box girder cannot be lifted; in addition, in the pushing process of the steel box girder by the pushing hydraulic oil cylinder, the pushing and the deviation correction cannot be synchronously performed, so that the whole moving and the deviation correction installation of the steel box girder are required to be performed step by step, the working procedures are increased, the construction time is prolonged, and the construction efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a pushing device for small steel box girder construction, which can ensure that the steel box girder keeps a constant and stable moving speed for installation in the installation process, thereby avoiding multiple contact between the steel box girder and a pier and reducing the phenomenon of excessive collision and damage between the steel box girder and the pier; meanwhile, the deviation adjusting mechanism capable of synchronously operating is arranged on the main frame body, so that the deviation adjusting and correcting are carried out in the stable moving process of the steel box girder, and the accuracy of the installation position of the steel box girder is guaranteed.
The technical scheme of the invention is as follows:
a thrustor for small steel box girder construction comprises a lifting device for jacking a steel box girder and a bridge support for placing the lifting device and the steel box girder, and is characterized in that a support guide rail is fixedly installed on the bridge support, and the extension length of the support guide rail is consistent with the displacement distance required by the installation of the steel box girder; the lifting device is characterized in that a main frame body used for installing the lifting device is arranged on the supporting guide rail, and the main frame body is in transmission connection with the supporting guide rail through a driving gear and a rack which are meshed in a matching mode.
Preferably, the support guide rail is of a convex structure, and the rack is fixedly arranged on the convex side wall of the support guide rail; the bottom surface of the main frame body is provided with a sliding groove matched with the supporting guide rail, a mounting groove is formed in the inner side wall of the sliding groove, and the driving gear is rotatably mounted in the mounting groove.
Preferably, be provided with on the body frame body and be used for driving drive gear moving advancing mechanism, advancing mechanism is including installing driving motor on the body frame body top surface and installing the connecting axle of the vertical setting on the body frame body side, driving motor's output with connect the transmission through the meshed gear train between the top of connecting axle, the bottom fixed mounting of connecting axle have with drive gear meshing driven drive gear.
Preferably, the main frame body is provided with a limit bearing, the limit bearing is sleeved on the connecting shaft, and an outer ring of the limit bearing is fixedly arranged on the side wall of the main frame body; and the side wall of the main frame body is also provided with a through groove corresponding to the driving gear, and the transmission gear penetrates through the through groove and then is meshed with the driving gear.
Preferably, the main frame body is further provided with an offset adjusting mechanism, the offset adjusting mechanism comprises an air cylinder and a plurality of offset adjusting rails distributed at equal intervals, the air cylinder and the offset adjusting rails are both fixedly mounted on the top surface of the main frame body, and the extending direction of the offset adjusting rails is perpendicular to the extending direction of the supporting guide rails; the lifting device is arranged on the deviation adjusting track, and a groove matched with the deviation adjusting track is formed in the bottom of the lifting device; the cylinder is located on one side of the lifting device, and a push-pull rod of the cylinder is parallel to the deviation adjusting track and fixed on the side wall of the lifting device.
Preferably, a plurality of first rollers and second rollers which are uniformly distributed are arranged between the supporting guide rail and the main frame body, and the first rollers and the second rollers are rotatably arranged on the supporting guide rail and are in contact with the surface of the main frame body.
Preferably, the two supporting guide rails are symmetrically arranged, a linkage rod with adjustable length is arranged between the two lifting devices corresponding to each other on the two supporting guide rails, the linkage rod is horizontally arranged, and two ends of the linkage rod are respectively and fixedly installed on the two opposite lifting devices.
The invention has the beneficial effects that:
the pushing device for the construction of the small steel box girder can ensure that the steel box girder can be installed at a constant and stable moving speed in the installation process, so that the repeated contact between the steel box girder and a pier is avoided, and the phenomenon of excessive collision and damage between the steel box girder and the pier is reduced; meanwhile, the deviation adjusting mechanism capable of synchronously operating is arranged on the main frame body, so that the deviation adjusting and correcting are carried out on the steel box girder in the stable moving process, and the accuracy of the installation position of the steel box girder is guaranteed.
Drawings
FIG. 1 is a schematic view of the overall structure of the pushing device provided by the present invention;
FIG. 2 is a schematic cross-sectional view of a pushing device according to the present invention;
FIG. 3 is a schematic side view of a pushing device according to the present invention;
FIG. 4 is a schematic top view of the pushing device of the present invention;
FIG. 5 is a schematic view of a support rail configuration provided by the present invention;
FIG. 6 is an enlarged view of the part A in FIG. 2;
FIG. 7 is an enlarged view of the portion B of FIG. 2;
in the figure, 1, a lifting device;
2. a main frame body; 201. a drive gear; 202. a chute; 203. a limiting bearing; 204. a through slot; 205. mounting grooves; 206. a support plate; 207. a first bearing; 208. a rotating shaft; 209. a second bearing;
3. a propulsion mechanism; 301. a drive motor; 302. a connecting shaft; 303. a transmission gear; 304. a first bevel gear; 305. a second bevel gear;
4. supporting the guide rail; 401. a first roller; 402. a second roller; 403. a rack;
5. a deviation adjusting mechanism; 501. a cylinder; 502. adjusting the deviation of the track;
6. a bridge support;
7. a limiting supporting plate; 701. a guide plate;
8. a linkage rod; 801. a first connecting rod; 802. a second connecting rod;
9. and (6) fixing the bolt.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
It is to be understood that the terms "horizontal, vertical, top, bottom, end" and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation and are not to be considered limiting.
The invention provides a pushing device for small-sized steel box girder construction, which comprises a lifting device 1 for jacking a steel box girder and a bridge support 6 for placing a lifting mechanism 1 and the steel box girder, wherein in the specific embodiment, the lifting device 1 is a hydraulic cylinder, the steel box girder is lifted up through the lifting device 1, a limit supporting plate 7 for contacting with the steel box girder is arranged on the lifting device 1, and the steel box girder is supported and the position movement of the steel box girder is limited through the limit supporting plate 7; in addition, a support guide rail 4 is fixedly arranged on the bridge support 6, the extension direction of the support guide rail 4 is consistent with the moving direction of the steel box girder, and the extension length of the support guide rail 4 is the same as the displacement distance required by the installation of the steel box girder; a main frame body 2 is arranged on the support guide rail 4, the main frame body 2 is slidably mounted on the support guide rail 4, the lifting device 1 is mounted on the main frame body 2, and the lifting device 1 is driven to move by the movement of the main frame body 2 on the support guide rail 4, so that the steel box girder is driven to move on the support guide rail 4; in addition, the main frame body 2 is in transmission connection with the support guide rail 4 through a driving gear and a rack 403 which are in fit engagement, so that the main frame body 2 can move on the support guide rail 4, and the installation and propulsion of the dry steel box girder are completed.
It should be noted that, as shown in fig. 2 and fig. 5, in the embodiment of the present invention, the support rail 4 is in a "convex" structure, the rack 403 is horizontally fixed on two convex sidewalls of the support rail 4, and the rack 403 extends to a direction consistent with the extending direction of the support rail 4; in addition, a sliding groove 202 which is matched and installed with the bulge of the support guide rail 4 is arranged on the bottom surface of the main frame body 2, and the main frame body 2 is installed on the support guide rail 4 in a sliding mode through the sliding groove 202 and moves along the direction of the support guide rail 4; in addition, a mounting groove 205 is arranged on the inner side wall of the chute 202, the driving gear 201 is horizontally mounted in the mounting groove 205 through a rotating shaft 208, and the driving gear 201 is rotatably mounted in the mounting groove 205 through arranging a second bearing 209 at two ends of the rotating shaft 208; under the meshing effect between drive gear 201 and rack 403, when drive gear 201 rotates, rack 403 and drive gear 201 produce relative displacement, because rack 403 is fixed on support rail 4, so rack 403 rigidity makes drive gear 201 drive body frame 2 horizontal migration on support rail 4, realizes driving the steel box girder and removes.
Further, as shown in fig. 2 to 4, in a specific embodiment of the present invention, a propulsion mechanism 3 for driving the driving wheel 201 to rotate is disposed on the main frame body 2, the propulsion mechanism 3 includes a driving motor 301 and a connecting shaft 302, in this embodiment, the driving motor 301 is a dual-shaft motor and is fixedly mounted on the top surface of the main frame body 2, and the connecting shaft 302 is vertically disposed on the side wall of the main frame body 2; in addition, the output shaft end of the driving motor 301 and the top end of the connecting shaft 302 are in connection transmission through a gear set, wherein the gear set comprises a first bevel gear 304 and a second bevel gear 305 which are meshed with each other, the first bevel gear 304 is fixedly installed at the output shaft end of the driving motor 301, the second bevel gear 305 is fixedly installed at the top end of the connecting shaft 302, when the driving motor 301 runs, the output shaft of the driving motor 301 drives the first bevel gear 304 to rotate, and the rotating shaft of the connecting shaft 302 is driven through the meshing transmission between the first bevel gear 304 and the second bevel gear 305; in addition, a transmission gear 303 which is horizontally arranged is fixedly installed at the bottom end of the connecting shaft 302, the transmission gear 303 is in fit engagement with the driving gear 201, the transmission gear 303 is driven to rotate by the rotation of the connecting shaft 302, so that the transmission gear 303 is in engagement transmission with the driving gear 201 to drive the driving gear 201 to rotate, and the main frame body 2 is further pushed to move on the support guide rail 4.
Further, as shown in fig. 2 to 4, in a specific embodiment of the present invention, a main frame body 2 is provided with a limit bearing 203, the limit bearing 203 is horizontally disposed, and the limit bearing 203 is sleeved on the connecting shaft 302, in addition, an outer ring of the limit bearing 203 is fixed on an outer side wall of the main frame body 2, the connecting shaft 302 penetrates through the limit bearing 203 and is fixedly connected with an inner ring of the limit bearing 203, so as to realize relative rotation between the connecting shaft 302 and the limit bearing 203, and the position of the connecting shaft 302 is fixed by the limit bearing 203, so as to avoid the connecting shaft 302 from falling off in the operation process, and at the same time, effectively reduce the friction loss between the connecting shaft 302 and the main frame body 2; in addition, a through groove 204 is formed in the side wall of the main frame body 2, the position of the through groove 204 corresponds to the position of the driving gear 201, the through groove 204 penetrates through the outer wall of the main frame body 2 and penetrates through the mounting groove 205 in the inner wall of the main frame body 2, and a partial area of the transmission gear 303 penetrates through the through groove 204 and then is meshed with the driving gear 201 to drive the driving gear 201 to rotate.
It should be explained that, as shown in fig. 2 to fig. 4, in the specific embodiment of the present invention, the main frame body 2 is further provided with an offset adjusting mechanism 5, wherein the offset adjusting mechanism 5 includes an air cylinder 501 and a plurality of offset adjusting rails 502 distributed at equal intervals, and both the air cylinder 501 and the offset adjusting rails 502 are fixed on the top surface of the main frame body 2; in addition, the extending direction of the plurality of deviation adjusting rails 502 is perpendicular to the extending direction of the support guide rail 4, the lifting device 1 is slidably mounted on the deviation adjusting rails 502, and a groove adapted to the deviation adjusting rails 502 is formed in the bottom surface of the lifting device 1; in addition, the cylinder 501 is located on one side of the lifting device 1, the push-pull rod of the cylinder 501 is parallel to the deviation adjusting track 502, the end portion of the push-pull rod of the cylinder 501 is fixed on the side wall of the lifting device 1, the lifting device 1 is pushed to move on the deviation adjusting track 502 through the cylinder 501, the position of the lifting device 1 on the main frame body 2 is adjusted, the deviation rectifying operation of the steel box girder in the moving and installing process can be achieved, and the installing accuracy of the steel box girder is guaranteed.
Further, as shown in fig. 4 and fig. 6, in the embodiment of the present invention, symmetrically disposed support plates 206 are fixedly mounted on the top surface of the main frame 2, the support plates 206 are used for positioning and supporting the output shaft of the driving motor 301, and the output shaft of the driving motor 301 penetrates through the support plates 206 and is rotatably mounted on the support plates 206; the first bearing 207 is fixedly installed on the support plate 206, the first bearing 207 is sleeved on the output shaft of the driving motor 301, relative rotation between the output shaft of the driving motor 301 and the support plate 206 is achieved through the first bearing 207, and friction loss during relative rotation is effectively reduced.
It should be noted that, as shown in fig. 2 and 5, in the embodiment of the present invention, a plurality of first rollers 401 and second rollers 402 are uniformly and equidistantly arranged between the support rail 4 and the main frame 2, the first rollers 401 and the second rollers 402 are rotatably mounted on the support rail 4 and are in contact with the main frame 2, and by the arrangement of the first rollers 401 and the second rollers 402, the mutual friction between the support rail 4 and the main frame 2 is reduced, the loss of kinetic energy is reduced, and the service life of the device is prolonged.
Further, as shown in fig. 2, in the specific embodiment of the present invention, the limiting supporting plate 7 is an "L" shaped structure, a horizontal bottom plate thereof is fixedly installed on an output shaft end of the hydraulic cylinder, and the position of the steel box girder is limited by a vertical side plate of the limiting supporting plate 7, so as to avoid the phenomenon of slipping and shifting of the steel box girder on the limiting supporting plate 7; in addition, a guide plate 701 is fixedly welded at the top end of a vertical side plate of the limiting support plate 7, the top end of the guide plate 701 is arranged in an outward inclining mode, the guide plate 701 is integrally inclined, the inclined angle formed between the guide plate 701 and the horizontal plane is 45 degrees, through the arrangement of the guide plate 701, when the steel box girder is placed on the limiting support plate 7, the primary positioning effect is achieved on the steel box girder, and after the steel box girder is contacted with the surface of the guide plate 701, the steel box girder slides downwards along the surface of the guide plate 701 and is finally placed on a horizontal bottom plate of the limiting support plate 7; in addition, guide plate 701 adopts wear-resisting steel sheet material, because of its intensity and the wearability that possesses good resistance external force, can provide stable support to the steel box girder at the in-process of transferring, avoids guide plate 701 to appear the phenomenon of bending rupture.
Furthermore, as shown in fig. 1 and fig. 2, in the specific embodiment of the present invention, two support rails 4 are symmetrically disposed, a plurality of main frame bodies 2 corresponding to each other are disposed on each of the two support rails 4, a horizontal linkage rod 8 is disposed between the lifting devices 1 on the two main frame bodies 2, the linkage rod 8 includes a first connection rod 801 and a second connection rod 802 disposed horizontally, the first connection rod 801 and the second connection rod 802 are adapted to be inserted into each other, and the first connection rod 801 and the second connection rod 802 are respectively fixed on the side surfaces of the two lifting devices 1, so as to be capable of synchronously operating when the main frame bodies 2 and the deviation adjusting mechanism 5 move the steel box girder; in addition, a plurality of mounting holes I are formed in the plug-in connector of the first connecting rod 801 at equal intervals, mounting holes II corresponding to the mounting holes I are formed in the plug-in groove of the second connecting rod 802 matched with the plug-in connector of the first connecting rod 801, a fixing bolt 9 is arranged between the mounting holes I and the mounting holes II, and the first connecting rod 801 is fixedly connected with the second connecting rod 802 through the fixing bolt 9; by arranging the linkage rod 8, the situation that the running states of the opposite lifting devices 1 are inconsistent is avoided.
The working process and principle of the device are as follows:
when the steel box girder pushing device is used, the length size of the steel box girder is installed as required, two supporting guide rails 4 with corresponding lengths are symmetrically installed on a bridge bracket side by side, then main frame bodies 2 which are symmetrically distributed with each other are installed on each supporting guide rail 4, and the steel box girder is placed on a limiting supporting plate 7 on the main frame body 2; the limiting support plate 7 and the steel box girder are lifted to a certain height through the lifting device 1 on the main frame body 2, so that the steel box girder is not in contact with a pier, then the propulsion mechanism 3 is started, the integral main frame body 2 moves on the support guide rail 4 to drive the steel box girder to move, and in the process that the propulsion mechanism 3 drives the integral main frame body 2 to move, the deviation adjusting mechanism 5 adjusts the lifting device 1 according to the actual moving condition, so that the moving direction of the steel box girder is adjusted, the deviation correction is realized, and the mounting accuracy of the steel box girder is guaranteed; and finally, after the steel box girder moves to the installation position, the lifting device 1 descends to enable the steel box girder to be in lap joint with the pier, and the installation of the steel box girder is completed.
The foregoing description of the specific embodiments of the present invention has been presented for purposes of illustration and description and is not intended to limit the invention to the precise form disclosed, and it will be apparent from the foregoing description that numerous modifications and variations are possible, the embodiments being chosen and described in order to explain certain principles of the invention and its practical application, to thereby enable others skilled in the art to make and use the invention in various embodiments and with various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (7)
1. A thrustor for small-sized steel box girder construction comprises a lifting device (1) for jacking a steel box girder and a bridge support (6) for placing the lifting device (1) and the steel box girder, and is characterized in that a support guide rail (4) is fixedly installed on the bridge support (6), and the extension length of the support guide rail (4) is consistent with the displacement distance required by the installation of the steel box girder; the lifting device is characterized in that a main frame body (2) used for installing the lifting device (1) is arranged on the supporting guide rail (4), and the main frame body (2) is in transmission connection with the supporting guide rail (4) through a driving gear (201) and a rack (403) which are meshed in a matching mode.
2. The thrustor for small steel box girder construction according to claim 1, wherein the supporting guide rail (4) is of a convex structure, and the rack (403) is fixedly mounted on the convex side wall of the supporting guide rail (4); the bottom surface of the main frame body (2) is provided with a sliding groove (202) which is matched and installed with the supporting guide rail (4), an installation groove (205) is formed in the inner side wall of the sliding groove (202), and the driving gear (201) is rotatably installed in the installation groove (205).
3. The thrustor for small steel box girder construction according to claim 1, wherein a propelling mechanism (3) for driving the driving gear (201) to operate is arranged on the main frame body (2), the propelling mechanism (3) comprises a driving motor (301) arranged on the top surface of the main frame body (2) and a vertically arranged connecting shaft (302) arranged on the side surface of the main frame body (2), the output end of the driving motor (301) is connected with the top end of the connecting shaft (302) through a meshed gear set for transmission, and a transmission gear (303) meshed with the driving gear (201) is fixedly arranged at the bottom end of the connecting shaft (302).
4. The thrustor for small steel box girder construction according to claim 3, wherein a limit bearing (203) is arranged on the main frame body (2), the limit bearing (203) is sleeved on the connecting shaft (302), and an outer ring of the limit bearing (203) is fixedly arranged on a side wall of the main frame body (2); the side wall of the main frame body (2) is further provided with a through groove (204) corresponding to the driving gear (201), and the transmission gear (303) penetrates through the through groove (204) and then is meshed with the driving gear (201).
5. The thrustor for small steel box girder construction according to claim 1, wherein the main frame body (2) is further provided with an offset adjusting mechanism (5), the offset adjusting mechanism (5) comprises a cylinder (501) and a plurality of offset adjusting rails (502) which are equidistantly distributed, the cylinder (501) and the offset adjusting rails (502) are both fixedly mounted on the top surface of the main frame body (2), and the extending direction of the offset adjusting rails (502) is perpendicular to the extending direction of the support guide rails (4); the lifting device (1) is arranged on the deviation adjusting track (502), and a groove matched with the deviation adjusting track (502) is formed in the bottom of the lifting device (1); the cylinder (501) is located on one side of the lifting device (1), and a push-pull rod of the cylinder (501) is parallel to the deviation adjusting track (502) and fixed on the side wall of the lifting device (1).
6. The thrustor for small steel box girder construction according to claim 1, wherein a plurality of uniformly distributed first rollers (401) and second rollers (402) are arranged between the supporting guide rail (4) and the main frame body (2), and the first rollers (401) and the second rollers (402) are rotatably mounted on the supporting guide rail (4) and are in contact with the surface of the main frame body (2).
7. The pushing device for the construction of the small steel box girder as recited in claim 1, wherein two supporting rails (4) are symmetrically arranged, a linkage rod (8) with adjustable length is arranged between the two corresponding lifting devices (1) on the supporting rails (4), the linkage rod (8) is horizontally arranged, and two ends of the linkage rod are respectively and fixedly installed on the two opposite lifting devices (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210439139.0A CN114775451A (en) | 2022-04-25 | 2022-04-25 | Pushing device for small steel box girder construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210439139.0A CN114775451A (en) | 2022-04-25 | 2022-04-25 | Pushing device for small steel box girder construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114775451A true CN114775451A (en) | 2022-07-22 |
Family
ID=82432170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210439139.0A Pending CN114775451A (en) | 2022-04-25 | 2022-04-25 | Pushing device for small steel box girder construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114775451A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100969005B1 (en) * | 2009-11-06 | 2010-07-09 | 동아대학교 산학협력단 | Constructing method of suspension bridge and temporary cable therefor |
| CN202440764U (en) * | 2012-01-16 | 2012-09-19 | 中铁一局集团有限公司 | Longitudinal movement device for main beams of moveable formwork |
| CN105565201A (en) * | 2016-02-16 | 2016-05-11 | 四川川交路桥有限责任公司 | Jack with three-direction synchronous pushing function |
| CN206109988U (en) * | 2016-09-10 | 2017-04-19 | 中铁三局集团有限公司 | Basket type tied arch encircles section installation micromatic setting |
| CN207598717U (en) * | 2017-12-15 | 2018-07-10 | 中国矿业大学 | Straight-line guidance wheel telecontrol equipment |
| CN109736212A (en) * | 2019-01-21 | 2019-05-10 | 郭正兴 | A kind of rolling friction type stride thrustor of bridge subsection installation |
| CN110565531A (en) * | 2019-08-29 | 2019-12-13 | 成都天府轨谷科技有限公司 | Construction channel structure and installation method |
| CN114164948A (en) * | 2021-11-09 | 2022-03-11 | 王艾俊 | Steel construction support that slides for civil engineering |
-
2022
- 2022-04-25 CN CN202210439139.0A patent/CN114775451A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100969005B1 (en) * | 2009-11-06 | 2010-07-09 | 동아대학교 산학협력단 | Constructing method of suspension bridge and temporary cable therefor |
| CN202440764U (en) * | 2012-01-16 | 2012-09-19 | 中铁一局集团有限公司 | Longitudinal movement device for main beams of moveable formwork |
| CN105565201A (en) * | 2016-02-16 | 2016-05-11 | 四川川交路桥有限责任公司 | Jack with three-direction synchronous pushing function |
| CN206109988U (en) * | 2016-09-10 | 2017-04-19 | 中铁三局集团有限公司 | Basket type tied arch encircles section installation micromatic setting |
| CN207598717U (en) * | 2017-12-15 | 2018-07-10 | 中国矿业大学 | Straight-line guidance wheel telecontrol equipment |
| CN109736212A (en) * | 2019-01-21 | 2019-05-10 | 郭正兴 | A kind of rolling friction type stride thrustor of bridge subsection installation |
| CN110565531A (en) * | 2019-08-29 | 2019-12-13 | 成都天府轨谷科技有限公司 | Construction channel structure and installation method |
| CN114164948A (en) * | 2021-11-09 | 2022-03-11 | 王艾俊 | Steel construction support that slides for civil engineering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102371458B (en) | Horizontal assembly, welding, pre-supporting and clamping mechanism for H-shaped steel | |
| KR101011893B1 (en) | Movable carrier for repairing and maintaining of arch type structure | |
| CN110528888B (en) | Floating robot | |
| CN113086034B (en) | Running gear of sleeper machine is traded to railway | |
| CN114775451A (en) | Pushing device for small steel box girder construction | |
| CN216735891U (en) | Four-way shuttle | |
| CN216840874U (en) | Rotary vehicle-carrying mechanism device applied to lifting and transverse moving | |
| CN216739082U (en) | Rail replacing system | |
| CN109680919B (en) | Slide capable of freely changing track | |
| CN209760858U (en) | Sliding type rotary table | |
| CN200957978Y (en) | Transporting-line lifter | |
| CN111455745B (en) | Lifting platform containing gap filling device and intelligent stereo garage | |
| CN109437025B (en) | Transversely-movable C-shaped supporting leg plank door hanger | |
| CN113697666B (en) | Method capable of realizing rail-mounted mast crane rail-changing | |
| CN218988638U (en) | Crane cantilever | |
| CN219137442U (en) | Special crawler belt for steel box girder pushing equipment | |
| CN215366816U (en) | Bridge arch rib inspection vehicle walking device | |
| CN217839766U (en) | On-spot mechanized device of assembling of prefabricated culvert | |
| CN216947858U (en) | Track-distance-variable crawler-type traveling mechanism for bridge maintenance | |
| CN221094881U (en) | Steel box girder position adjusting device for pushing construction of steel box girders | |
| CN215094488U (en) | Compound factory building structure of rectilinear | |
| CN212502368U (en) | Tandem type synchronous translation mechanism for conveyer | |
| CN220317179U (en) | Bridge cantilever construction prestressing force tensioning jack overhead hoist | |
| CN116537814B (en) | Lifting platform for tunnel maintenance operation | |
| CN220598008U (en) | Wheeled track panel paving machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |