Prefabricated box girder transverse moving device

Abstract

The invention relates to the technical field of prefabricated box girder building, and discloses a prefabricated box girder transverse moving device which comprises two bottom frames, second limiting sliding grooves are formed in the middle positions of one sides of the outer walls of the two bottom frames correspondingly, and first hydraulic rods are fixedly arranged on the two sides of the bottom of one bottom frame correspondingly; first mounting frames are fixedly arranged at the edges of the two ends of one sides of the two bottom frames, the inner walls of the two first mounting frames are rotationally connected with cross connecting rods, the first hydraulic rods are started to stretch out and draw back, the cross connecting rods installed between the two bottom frames start to stretch in a cross mode, and in the cross stretching process of the two cross connecting rods, the cross connecting rods can stretch out and draw back conveniently. The two ends of the clamping mechanism are connected to the second mounting frame and slide in the second limiting sliding grooves in one sides of the two bottom frames through the first limiting sliding blocks, when the two bottom frames drive the clamping mechanism to stretch together to the size capable of bearing and clamping the box girder, transverse moving operation can be carried out with the cross beam, in the process, consumed time is short, use is more convenient, and the working efficiency is improved. And the box girder transverse moving efficiency of the device is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of precast box girder construction, and specifically relates to a precast box girder lateral movement device. Background Technology

[0002] Reinforced concrete box girders are divided into precast box girders and cast-in-place box girders. Box girders precast on an independent site can be erected after the substructure is completed using a bridge erecting machine, which can accelerate the project progress and save construction time. Cast-in-place box girders are mostly used for large continuous bridges. With the development of the modern construction industry, the use of precast structures has become increasingly frequent. Therefore, in the process of bridge construction, precast box girders have gradually replaced traditional cast-in-place box girders. Precast box girders need to be assembled on site. During the assembly process, the lateral movement of precast box girders is generally operated by a crane. However, the operation of cranes requires a large operating space. In a small building space, the lateral movement of precast box girders requires the use of a special lateral movement device.

[0003] However, the existing transverse movement devices used in the transverse movement of precast box girders have the following drawbacks during use:

[0004] 1. Existing transverse movement devices generally have a large bottom support area, which takes up a relatively large area. Compared with traditional cranes, they do not save much operating space. In addition, during transverse movement, ordinary transverse movement devices do not have flexible width adjustment functions when facing box girders of different widths. Operators need to repeatedly adjust the bottom support area to adapt to box girders of different widths, which reduces the convenience of using the transverse movement device. Furthermore, the adjustment requires a lot of debugging time, which reduces the transverse movement efficiency of the box girder.

[0005] 2. Ordinary transverse movement devices cannot adapt to box girders of different widths by adjusting the width. After spending a lot of time adapting to the width, it is necessary to adjust the clamping device at the top of the transverse movement device to clamp it. Repeated debugging and frequent changes in clamping size not only reduce transverse movement efficiency, but also increase the workload of the staff and reduce the ease of use of the device.

[0006] 3. Traditional transverse moving devices have a movable bottom when used to support box girders, making it easy to transport the equipment to the box girder erection site. However, the movable structure at the bottom of ordinary transverse moving devices does not have a fast braking function. As a result, during the transverse movement of the box girder, the bottom of the device moves along with the box girder due to poor braking effect, making it impossible to quickly and accurately connect the box girder to the designated area, thereby reducing the effectiveness of the device in the box girder erection.

[0007] Therefore, it is necessary to invent a precast box girder lateral movement device to solve the above problems. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides a precast box girder lateral movement device to solve the issues raised in the background section.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a precast box girder transverse movement device, comprising two base frames, characterized in that: a width adjustment mechanism, a clamping mechanism, and a braking assembly are respectively provided between the two base frames;

[0010] The width adjustment mechanism includes a first limiting slide groove located at the middle of the top of the two base frames, and a second limiting slide groove located at the middle of one side of the outer wall of each of the two base frames. A first hydraulic rod is fixedly installed on both sides of the bottom of one of the base frames, and one end of each of the two first hydraulic rods is fixedly connected to both ends of one side of the other base frame. A first mounting bracket is fixedly installed at the edge of one end of one side of each of the two base frames. A cross connecting rod is rotatably connected to the inner wall of each of the two first mounting brackets. A first limiting slider is slidably connected to both ends of the inner wall of each of the two second limiting slide grooves. A second mounting bracket is fixedly installed on one side of each of the four first limiting sliders, and the two ends of the two cross connecting rods are rotatably connected to the inner wall of each of the four second mounting brackets.

[0011] Preferably, the clamping mechanism includes second limiting sliders slidably connected to both ends of the inner walls of the two first limiting grooves, and two transverse bases are fixedly provided on the top of the four second limiting sliders, with storage grooves provided on both sides of the top of the two transverse bases.

[0012] Preferably, one end of the inner wall of each of the four storage slots is rotatably connected to a limiting frame, one of the transverse bases has a third limiting slide groove on both sides of its bottom, and the other transverse base has a telescopic frame fixed at both ends of one side.

[0013] Preferably, the outer walls of the two telescopic frames are slidably connected to the inner walls of the two third limiting slide grooves, and limiting blocks are fixedly provided at the bottom edges of the inner walls of the four storage slots. One side of the four limiting frames is in contact with one side of the four limiting blocks. One end of the two base frames is provided with an installation groove. The inner walls of the two installation grooves are equipped with second hydraulic rods, and one end of the two second hydraulic rods is fixedly connected to one side of two of the second limiting slide blocks.

[0014] Preferably, a support base is fixedly provided at the middle position of the bottom of each of the two base frames, and multiple grooves are equally spaced on the bottom of each of the two support bases. Each groove has a movable wheel rotatably connected to its inner wall.

[0015] Preferably, the braking assembly includes connecting holes formed in the inner walls of two support bases, with brake rods inserted through the inner walls of both connecting holes, and multiple through holes equally spaced at the bottom of the inner walls of both connecting holes.

[0016] Preferably, each groove has a first spring fixedly installed at both ends of its inner wall, and each groove has a friction plate installed on its inner wall, with the top of each friction plate fixedly connected to one end of each of the four first springs.

[0017] Preferably, a first protrusion is fixedly provided at the middle position of the top of each friction pad, and the outer wall of each first protrusion is respectively inserted and connected to the inner wall of each through hole, and multiple second protrusions are fixedly provided at equal distances at the bottom of the two brake rods.

[0018] Preferably, one end of each of the two brake rods is fixedly provided with a connecting rod, and the outer wall of each of the two connecting rods is inserted and connected to the inner wall of one side of each of the two support bases. The outer wall of each of the two connecting rods is sleeved with a second spring, and the two ends of each of the two second springs are fixedly connected to one end of each of the two brake rods and one side of each of the two connecting holes. One side of the outer wall of each of the two support bases is fixedly provided with a third hydraulic rod, and one end of each of the two third hydraulic rods is fixedly connected to the other end of each of the two brake rods.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. This invention, by setting a width adjustment mechanism, activates the first hydraulic rod to extend and retract. During the distance adjustment process of the two base frames moving relative to each other, the cross connecting rods installed between the two base frames begin to extend crosswise. During the cross extension process, the two ends of the two cross connecting rods are connected to the second mounting frame and slide relative to each other in the second limiting groove on one side of the two base frames through the first limiting slider. When the two base frames, along with the clamping mechanism, extend to the size that can support and clamp the box girder, the crossbeam can be moved laterally. During this process, the space occupied by the lateral moving device is small, and it can be quickly adjusted and adapted according to the size of the box girder, which takes less time, is more convenient to use, and improves the lateral moving efficiency of the device for the box girder.

[0021] 2. This invention uses a clamping mechanism to rotate the limiting frame in the storage slot to make it stand upright and maintain its vertical position under the compression and limitation of the limiting block at the edge of the storage slot. Then, it supports the bottom of the box girder. As the width adjustment mechanism adjusts the width of the load-bearing structure, the transverse base also adjusts the clamping width through the interlacing of the telescopic frame and the third limiting slide. The distance adjustment between the base frames can only be stopped after the limiting frames on both sides have squeezed and fixed the two sides of the box girder. While the base frame adapts to the width, it also completes the clamping and fixing of the box girder. It does not require frequent adjustments, saves debugging time, improves transverse movement efficiency, and improves the convenience of using the device.

[0022] 3. By setting up a braking component, when the device is adjusting the box girder laterally, the third hydraulic rod pushes the brake rod to slide in the connecting hole. Multiple second protrusions at its bottom also move in the connecting hole. When the second protrusions move above the through hole, they squeeze the first protrusions that are inserted therein, thereby squeezing the friction plate down to contact and press against the upper surface of the moving wheel, applying pressure to it, thereby increasing its friction. This causes each moving wheel to be braked simultaneously, thus preventing the device from moving during the lateral movement of the box girder. This makes the lateral movement of the box girder more stable, and allows for more precise assembly and docking, improving the assembly effect of the box girder.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the entire invention;

[0026] Figure 2 This is a schematic diagram of the width adjustment mechanism of the present invention;

[0027] Figure 3 This is a schematic diagram of the entire cross linkage of the present invention;

[0028] Figure 4 This is a schematic diagram of the clamping mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the bottom of the base frame of the present invention;

[0030] Figure 6 This is a schematic diagram of the interior of the base frame of the present invention;

[0031] Figure 7 This is an appendix to the specification of this invention. Figure 6 A magnified diagram of point A in the middle.

[0032] In the diagram: 1. Base frame; 2. Width adjustment mechanism; 201. First limiting slide groove; 202. Second limiting slide groove; 203. First hydraulic rod; 204. First mounting bracket; 205. Cross link; 206. First limiting slider; 207. Second mounting bracket; 3. Clamping mechanism; 301. Second limiting slider; 302. Lateral base; 303. Storage slot; 304. Limiting frame; 305. Third limiting slide groove; 306. Telescopic frame; 307. Limiting block; 308. Second hydraulic rod; 309. Mounting slot; 4. Support base; 5. Groove; 6. Moving wheel; 7. Braking assembly; 701. Connecting hole; 702. Brake rod; 703. Through hole; 704. First spring; 705. Friction plate; 706. First protrusion; 707. Second protrusion; 708. Connecting rod; 709. Second spring; 710. Third hydraulic rod. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] This invention provides, for example Figure 1-7 The precast box girder transverse movement device shown includes two base frames 1, with a width adjustment mechanism 2, a clamping mechanism 3 and a braking assembly 7 respectively arranged between the two base frames 1;

[0035] The width adjustment mechanism 2 includes a first limiting slide groove 201 located at the middle of the top of the two base frames 1, and a second limiting slide groove 202 located at the middle of one side of the outer wall of each of the two base frames 1. A first hydraulic rod 203 is fixedly installed on both sides of the bottom of one of the base frames 1, and one end of each of the two first hydraulic rods 203 is fixedly connected to one end of the other base frame 1. A first mounting bracket 204 is fixedly installed at the edge of one end of the two base frames 1. A cross link 205 is rotatably connected to the inner wall of each of the two first mounting brackets 204. A first limiting slider 206 is slidably connected to one end of the inner wall of each of the two second limiting slide grooves 202. A second mounting bracket 207 is fixedly installed on one side of each of the four first limiting sliders 206, and the two ends of each of the two cross links 205 are rotatably connected to the inner wall of each of the four second mounting brackets 207.

[0036] In use, based on the required width of the box girder to be moved laterally, the first hydraulic rod 203 is activated during box girder installation to extend and retract, thereby adjusting the distance between the two base frames 1. During the distance adjustment process as the two base frames 1 move relative to each other, the cross connecting rods 205 installed between the two base frames 1 begin to extend crosswise. During the cross extension process, the two ends of the two cross connecting rods 205 are connected to the second mounting frame 207 and slide relative to each other in the second limiting slide groove 202 on one side of the two base frames 1 through the first limiting slider 206. The four ends of the two cross connecting rods 205 are rotatably connected to the inner walls of the four first mounting frames 204 and the four second mounting frames 207 respectively, so that there is no movement interference. When the two base frames 1 and the clamping mechanism 3 extend together to the size that can support and clamp the box girder, the crossbeam can be moved laterally. During this process, the space occupied by the lateral moving equipment can be adjusted, and the range of the occupied space will not exceed the installation space of the box girder. At the same time, it can be quickly adjusted and adapted according to the size of the box girder, which takes less time, is more convenient to use, and improves the efficiency of the device in moving the box girder.

[0037] Furthermore, the clamping mechanism 3 includes second limiting sliders 301 that are slidably connected to both ends of the inner walls of the two first limiting slide grooves 201. Two transverse bases 302 are fixedly provided on the top of the four second limiting sliders 301. Storage slots 303 are provided on both sides of the top of the two transverse bases 302. When the transverse device is not in use, the limiting frame 304 can be rotated to store it in the storage slots 303, reducing the space occupied and facilitating transportation and storage.

[0038] One end of the inner wall of each of the four storage slots 303 is rotatably connected to a limiting frame 304. A third limiting groove 305 is provided on both sides of the bottom of one of the transverse bases 302. A telescopic frame 306 is fixed at both ends of one side of the other transverse base 302. When the width adjustment mechanism 2 adjusts the support size, the clamping mechanism 3 also adjusts accordingly. The support width of the clamping mechanism 3 is adjusted by the telescopic frame 306 passing through the third limiting groove 305.

[0039] The outer walls of the two telescopic frames 306 are slidably connected to the inner walls of the two third limiting slide grooves 305, respectively. Limiting blocks 307 are fixedly provided at the bottom edge of the inner wall of the four storage slots 303, and one side of the four limiting frames 304 is in contact with one side of the four limiting blocks 307. One end of each of the two base frames 1 is provided with an installation groove 309. The inner wall of each of the two installation grooves 309 is equipped with a second hydraulic rod 308, and one end of each of the two second hydraulic rods 308 is fixedly connected to one side of one of the two second limiting sliders 301. Before supporting the box girder, the limiting frame 304 is rotated in the storage slot 303 to make it stand upright. And under the squeezing and limiting of the limiting block 307 at the edge of the storage groove 303, it is kept in a vertical state and then supported at the bottom of the box beam. As the width adjustment mechanism 2 adjusts the width of the load-bearing structure, the transverse base 302 also adjusts the clamping width through the interlacing of the telescopic frame 306 and the third limiting slide 305 until the limiting frames 304 on both sides squeeze and fix the two sides of the box beam. Only then can the distance adjustment between the base frame 1 be stopped. While the base frame 1 adapts to the width, it also completes the clamping and fixing of the box beam. There is no need for frequent adjustment, saving debugging time, improving transverse efficiency, and improving the convenience of using the device.

[0040] Furthermore, a support base 4 is fixedly installed at the middle position of the bottom of each of the two base frames 1. Multiple grooves 5 are equally spaced on the bottom of each of the two support bases 4. Each groove 5 has a movable wheel 6 rotatably connected to its inner wall. The support base 4 can not only increase the load-bearing height of the box girder and facilitate its lateral movement away from the ground, but also facilitate the transport of the lateral movement device to the site via the movable wheel 6 at the bottom of the support base 4.

[0041] Furthermore, the braking assembly 7 includes connection holes 701 formed in the inner walls of the two support bases 4, and brake rods 702 are inserted through the inner walls of the two connection holes 701. Multiple through holes 703 are formed at equal intervals at the bottom of the inner walls of the two connection holes 701.

[0042] Each groove 5 has a first spring 704 fixedly installed at both ends of the inner wall. Each groove 5 has a friction plate 705 installed on its inner wall, and the top of each friction plate 705 is fixedly connected to one end of each of the four first springs 704.

[0043] Each friction plate 705 has a first protrusion 706 fixedly positioned at the top center, and the outer wall of each first protrusion 706 is inserted and connected to the inner wall of each through hole 703. The bottom of each of the two brake rods 702 is fixedly provided with multiple second protrusions 707 at equal distances. When the device is adjusting the box girder laterally, the third hydraulic rod 710 pushes the brake rod 702 to slide in the connecting hole 701, and the multiple second protrusions 707 at its bottom also move in the connecting hole 701. When the second protrusion 707 moves to the top of the through hole 703, it will squeeze the first protrusion 706 inserted therein, thereby squeezing the friction plate 705 to move down and contact and squeeze the upper surface of the moving wheel 6, applying pressure to it, thereby increasing its friction, so that each moving wheel 6 is braked at the same time, and thus the device cannot move during the lateral movement of the box girder, making the lateral movement of the box girder more stable, and allowing for more precise assembly and docking, thus improving the assembly effect of the box girder.

[0044] Furthermore, each of the two brake levers 702 has a connecting rod 708 fixedly attached to one end, and the outer walls of the two connecting rods 708 are respectively inserted into the inner walls of one side of the two support bases 4. The outer walls of the two connecting rods 708 are each fitted with a second spring 709, and the two ends of the two second springs 709 are respectively fixedly connected to one end of the two brake levers 702 and one side of the two connecting holes 701. Each of the two support bases 4 has a third hydraulic rod 710 fixedly attached to one side of the outer wall, and one end of the two third hydraulic rods 710 is respectively fixedly connected to the other end of the two brake levers 702. After the box girder is erected, the force applied by the third hydraulic rod 710 is removed, and the brake levers 702 return to their original position under the elastic action of the second springs 709. The first protrusion 706 loses the pressure of the second protrusion 707, causing the first spring 704 to reset, and then the friction plate 705 moves along the moving wheel 6, so that the lateral movement device can be transported by the moving wheel 6.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A precast box girder transverse movement device, comprising two base frames (1), characterized in that: A width adjustment mechanism (2), a clamping mechanism (3), and a braking assembly (7) are respectively provided between the two base frames (1); The width adjustment mechanism (2) includes a first limiting groove (201) opened at the middle position of the top of the two base frames (1), a second limiting groove (202) opened at the middle position of one side of the outer wall of the two base frames (1), a first hydraulic rod (203) fixedly provided on both sides of the bottom of one of the base frames (1), and one end of the two first hydraulic rods (203) respectively fixedly connected to the two ends of one side of the other base frame (1), a first mounting bracket (204) fixedly provided at the edge of one end of one side of the two base frames (1), a cross connecting rod (205) rotatably connected to the inner wall of the two first mounting brackets (204), a first limiting slider (206) slidably connected to the two ends of the inner wall of the two second limiting grooves (202), a second mounting bracket (207) fixedly provided on one side of the four first limiting sliders (206), and the two ends of the two cross connecting rods (205) respectively rotatably connected to the inner wall of the four second mounting brackets (207).

2. The precast box girder transverse movement device according to claim 1, characterized in that: The clamping mechanism (3) includes a second limiting slider (301) slidably connected to both ends of the inner wall of the two first limiting slide grooves (201). Two transverse bases (302) are fixedly provided on the top of the four second limiting sliders (301), and storage slots (303) are provided on both sides of the top of the two transverse bases (302).

3. The precast box girder transverse movement device according to claim 2, characterized in that: One end of the inner wall of each of the four storage slots (303) is rotatably connected to a limiting frame (304). A third limiting groove (305) is provided on both sides of the bottom of one of the transverse bases (302), and a telescopic frame (306) is fixedly provided on both ends of one side of the other transverse base (302).

4. The precast box girder transverse movement device according to claim 3, characterized in that: The outer walls of the two telescopic frames (306) are slidably connected to the inner walls of the two third limiting slide grooves (305). Limiting blocks (307) are fixedly provided at the bottom edge of the inner walls of the four storage slots (303). One side of the four limiting frames (304) is in contact with one side of the four limiting blocks (307). One end of the two base frames (1) is provided with an installation groove (309). The inner walls of the two installation grooves (309) are equipped with second hydraulic rods (308). One end of the two second hydraulic rods (308) is fixedly connected to one side of one of the two second limiting sliders (301).

5. A precast box girder transverse movement device according to claim 1, characterized in that: A support base (4) is fixedly provided at the middle position of the bottom of each of the two base frames (1). Multiple grooves (5) are provided at equal distances at the bottom of each of the two support bases (4). A movable wheel (6) is rotatably connected to the inner wall of each groove (5).

6. The precast box girder transverse movement device according to claim 5, characterized in that: The braking assembly (7) includes connecting holes (701) opened in the inner walls of two support bases (4), and brake rods (702) are inserted through the inner walls of the two connecting holes (701). Multiple through holes (703) are opened at equal intervals at the bottom of the inner walls of the two connecting holes (701).

7. A precast box girder transverse movement device according to claim 6, characterized in that: Each groove (5) has a first spring (704) fixedly installed at both ends of the inner wall of each groove (5), and a friction plate (705) is installed on the inner wall of each groove (5), and the top of each friction plate (705) is fixedly connected to one end of each of the four first springs (704).

8. A precast box girder transverse movement device according to claim 7, characterized in that: Each of the friction pads (705) has a first protrusion (706) fixedly provided at the middle position of its top, and the outer wall of each first protrusion (706) is respectively inserted and connected to the inner wall of each through hole (703). The bottoms of the two brake rods (702) are each fixedly provided with a plurality of second protrusions (707) at equal distances.

9. A precast box girder transverse movement device according to claim 8, characterized in that: One end of each of the two brake rods (702) is fixedly provided with a connecting rod (708), and the outer walls of the two connecting rods (708) are respectively inserted and connected to the inner walls of one side of the two support bases (4). The outer walls of the two connecting rods (708) are each fitted with a second spring (709), and the two ends of the two second springs (709) are respectively fixedly connected to one end of the two brake rods (702) and one side of the two connecting holes (701). One side of the outer wall of the two support bases (4) is fixedly provided with a third hydraulic rod (710), and one end of the two third hydraulic rods (710) is respectively fixedly connected to the other end of the two brake rods (702).

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