Bridge hoisting device

Abstract

The utility model relates to the technical field of bridge hoisting equipment, in particular to a bridge hoisting device which comprises a bridge mold, a mold supporting frame and a hoisting mechanism, the bridge mold is connected with another mold through a connecting support to form a rectangular groove body structure, and the mold supporting frame is arranged at one end of the bridge mold. The mold supporting frame is connected with the hoisting mechanism; the hoisting mechanism comprises a movable support, a connecting table, a sliding strip, a sliding table, a screw rod and a first driving motor, the connecting table is connected with the sliding strip and the screw rod on the movable support through a sliding groove and a screw hole in the upper portion, a winding wheel is arranged on the sliding table, and the winding wheel is connected with the mold supporting frame through a steel wire rope and a lifting set; first driving motors are arranged at the two ends of the movable support correspondingly, and the first driving motors are connected with the threaded rods through couplings. The lifting device can be matched with a mold, so that the stress area is increased, and the stability during lifting is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge hoisting equipment, in particular to a bridge hoisting device. Background Art

[0002] In the field of construction, especially in the process of bridge construction, the steel cage is usually loaded through a mold in the beam yard, and then dried by introducing concrete. The produced bridge can be directly transported to the viaduct for use after maintenance. In this production process, the lifting and transportation of the beam crane and the mold are particularly important. The traditional bridge lifting device has many limitations in actual application. It uses a trolley with a wire rope and a hook to lift the bridge together with the mold. This method of using a hook has a small force point and is not stable during lifting, which poses a safety hazard. Based on this, we designed a lifting mechanism that can match the mold to increase stability during lifting. Utility Model Content

[0003] In response to the technical problems existing in the background technology, the utility model provides a bridge lifting device, which is not only easy to clean, but also can cooperate with the mold to increase the force-bearing area, thereby increasing the stability during lifting.

[0004] The technical implementation scheme of the utility model is:

[0005] A bridge lifting device includes a bridge mold, a mold support frame and a lifting mechanism. The bridge mold is connected to another mold through a connecting bracket to form a rectangular trough structure. A mold support frame is provided at one end of the bridge mold, and the mold support frame is connected to the lifting mechanism; the lifting mechanism includes a movable bracket, a connecting platform, a slide bar, a sliding platform, a screw and a first drive motor. The connecting platform is connected to the slide bar and screw on the movable bracket through the upper slide groove and screw hole respectively. The sliding platform is provided with a winding wheel, and the winding wheel is connected to the mold support frame through a wire rope and a lifting group; the first drive motor is provided at both ends of the movable bracket, and the first drive motor is connected to the screw through a coupling.

[0006] Optionally, the lifting group includes a lifting bracket, a first connecting rod, a second connecting rod, a limit pin and a lifting rod. The lifting bracket is a rectangular frame structure. A plurality of first connecting rods and second connecting rods are arranged on the upper part of the lifting bracket, and limit pins are arranged on the first connecting rod and the second connecting rod to form a limit structure.

[0007] Optionally, a lifting rod is provided on the lifting bracket, and the lifting rod is connected to the wire rope.

[0008] Optionally, a rotating wheel is provided at the bottom of the movable bracket, and the rotating wheel is provided on a track on the ground surface.

[0009] Optionally, a rotating shaft is provided on the movable platform, and a winding wheel is provided on the rotating shaft, and the rotating shaft is connected to the second driving motor through a coupling.

[0010] Optionally, a plurality of steel bars and steel bar cages are provided inside the connecting bracket.

[0011] The utility model has the following advantages:

[0012] 1. The utility model adopts a group of symmetrically arranged bridge molds and connects them through connecting brackets. Steel bars and steel cages are set inside the molds. After concrete is introduced, a bridge module is formed. In order to facilitate lifting, a connecting bracket is set on one side of the mold support frame, which can be lifted and moved by a lifting mechanism.

[0013] 2. The utility model is designed with an independent lifting mechanism, in which the steel wire rope on the sliding table can be connected to the mold support frame through a lifting group. A plurality of connecting rods are provided on the lifting bracket in the lifting group, which can be respectively connected with the card slots on the mold support frame to achieve docking between the two. The lifting and movement are driven by the first drive motor and the second drive motor. The advantage of this design is that the contact area of ​​the connection point is increased and the connection is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 It is the main view of the utility model.

[0016] Figure 3 It is the right view of the utility model.

[0017] Figure 4 It is a structural diagram of the lifting mechanism of the utility model.

[0018] Figure 5 It is a structural diagram of the lifting group of the utility model.

[0019] The meaning of the reference numbers in the figure: 1-bridge mold, 2-mold support frame, 3-connecting bracket, 4-lifting group, 401-lifting bracket, 402-first connecting rod, 403-second connecting rod, 404-limiting pin, 405-lifting rod, 5-lifting mechanism, 501-movable bracket, 502-connecting platform, 503-slide bar, 504-screw, 505-sliding platform, 506-winding wheel, 507-first drive motor, 508-rotating wheel, 6-rebar, 7-wire rope. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear in this document are based solely on the accompanying drawings and are not intended to limit the present invention.

[0021] like Figure 1-Figure 5 As shown, a bridge lifting device includes a bridge mold 1, a mold support frame 2 and a lifting mechanism 5. The bridge mold 1 is connected to another mold through a connecting bracket 3 to form a rectangular trough structure. A mold support frame 2 is provided at one end of the bridge mold 1, and the mold support frame 2 is connected to the lifting mechanism 5; the lifting mechanism 5 includes a movable bracket 501, a connecting platform 502, a slide 503, a sliding platform 505, a screw 504 and a first drive motor 507. The connecting platform 502 is connected to the slide 503 and the screw 504 on the movable bracket 501 through the upper slide groove and screw hole respectively. A winding wheel 506 is provided on the sliding platform 505, and the winding wheel 506 is connected to the mold support frame 2 through a wire rope 7 and a lifting group 4; a first drive motor 507 is provided at both ends of the movable bracket 501, and the first drive motor 507 is connected to the screw 504 through a coupling.

[0022] It should be noted that after the bridge is molded, it needs to be lifted and transported to the maintenance base for maintenance. During this process, due to the heavy weight of the entire bridge, a crane is generally used for lifting, and a hook is used. The contact point area is small, and it will shake during lifting, posing a safety hazard. Based on this, we have designed a bridge lifting device, with a movable bracket 502 and a sliding platform 505 designed on the upper part, wherein a winding wheel 506 and a wire rope 7 are provided on the sliding platform 505, wherein the sliding platform 505 is moved left and right by a screw 504. During the movement, the entire lifting group is brought close to the mold support frame 2, which is convenient for the operator to lock and complete the lifting.

[0023] like Figure 1 and Figure 5 As shown, the lifting group 4 includes a lifting bracket 401, a first connecting rod 402, a second connecting rod 403, a limiting pin 404 and a lifting rod 405. The lifting bracket 401 is a rectangular frame structure. A plurality of first connecting rods 402 and second connecting rods 403 are arranged on the upper part of the lifting bracket 401, and limiting pins 404 are arranged on the first connecting rod 402 and the second connecting rod 403 to form a limiting structure; a lifting rod 405 is arranged on the lifting bracket 401, and the lifting rod 405 is connected to the wire rope 7.

[0024] It should be noted that in order to increase the force-bearing area of ​​the connection point, a first connecting rod 402 and a second connecting rod 403 are provided on the lifting bracket 401, and the first connecting rod 402 and the second connecting rod 403 are connected to the connection point of the mold support frame 2. The connecting rod and the mold support frame 2 are docked at the card points, which can increase the force-bearing area.

[0025] It should be further explained that in order to improve the safety performance of the connection point, we set a limiting pin 404 on the first connecting rod 402 and the second connecting rod 403, which can limit the connection point after docking with the mold support frame 2 to prevent it from falling off during lifting.

[0026] like Figure 1-Figure 5 As shown, a rotating wheel 508 is provided at the bottom of the movable bracket 501, and the rotating wheel 508 is set on the track on the ground; a rotating shaft is provided on the sliding platform 505, and a winding wheel 506 is provided on the rotating shaft, and the rotating shaft is connected to the second driving motor through a coupling; a plurality of steel bars 6 and a steel cage are provided inside the connecting bracket 3.

[0027] It should be noted that after the mobile bracket lifts the entire bridge, in order to facilitate movement, we set a turntable 508 at the bottom of the mobile bracket 501, which can move on the track on the surface. This is also for the purpose of adding a driving device to achieve automatic drive.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A bridge hoisting device, comprising a bridge mold (1), a mold support frame (2) and a hoisting mechanism (5), characterized in that: The bridge mold (1) is connected to another mold via a connecting bracket (3) to form a rectangular trough structure. A mold support frame (2) is provided at one end of the bridge mold (1), and the mold support frame (2) is connected to a lifting mechanism (5). The lifting mechanism (5) includes a movable bracket (501), a connecting platform (502), a slide bar (503), a sliding platform (505), a screw rod (504) and a first driving motor (507). The connecting platform (502) is connected to the slide bar (503) and the screw rod (504) on the movable bracket (501) through a sliding groove and a screw hole on the upper portion. A winding wheel (506) is provided on the sliding platform (505), and the winding wheel (506) is connected to the mold support frame (2) through a steel wire rope (7) and a lifting group (4). A first driving motor (507) is provided at both ends of the movable bracket (501), and the first driving motor (507) is connected to the screw (504) via a coupling.

2. A bridge hoisting device according to claim 1, characterized in that: The lifting group (4) comprises a lifting bracket (401), a first connecting rod (402), a second connecting rod (403), a limiting pin (404) and a lifting rod (405). The lifting bracket (401) is a rectangular frame structure. A plurality of first connecting rods (402) and second connecting rods (403) are provided on the upper part of the lifting bracket (401), and limiting pins (404) are provided on the first connecting rods (402) and the second connecting rods (403) to form a limiting structure.

3. A bridge hoisting device according to claim 2, characterized in that: A lifting rod (405) is provided on the lifting bracket (401), and the lifting rod (405) is connected to the steel wire rope (7).

4. A bridge hoisting device according to claim 1, characterized in that: The bottom of the mobile support (501) is provided with a rotating wheel (508), and the rotating wheel (508) is arranged on a track on the ground surface.

5. A bridge hoisting device according to claim 1, characterized in that: A rotating shaft is provided on the sliding platform (505), and a winding wheel (506) is provided on the rotating shaft. The rotating shaft is connected to the second driving motor through a coupling.

6. A bridge hoisting device according to claim 1, characterized in that: A plurality of steel bars (6) and a steel bar cage are arranged inside the connecting bracket (3).

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