Rail self-propelled lifting prefabricated box girder top plate operation trolley

Abstract

The utility model discloses a track self-propelled liftable operation trolley for prefabricating a box girder top plate, which comprises two box girder side mould vertical upright column heightening blocks, two side mould vertical upright column heightening blocks, two side mould vertical upright column heightening blocks and two side mould vertical upright column heightening blocks, the two rails are correspondingly arranged on the two box girder side formwork vertical stand column heightening blocks; the frame is arranged on the track through a walking mechanism; and the vertical lifting platform is arranged on the frame through a lifting driving mechanism. The working platform can be provided for precast box girder concrete working personnel, top plate reinforcing steel bars are prevented from being treaded, the working efficiency is improved, and the working safety and quality are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of precast box girder construction equipment for bridge engineering, and in particular to a track-mounted self-propelled lifting precast box girder top slab operation trolley. Background Technology

[0002] In highway bridge construction, precast box girders are generally prefabricated in box girder prefabrication yards. Workers typically use the safety walking platforms on both sides of the box girder's top slab and the top slab reinforcement as concrete pouring platforms for concrete placement, vibration, and finishing. This often results in displacement or loss of the top slab portal reinforcement after being stepped on, affecting the portal reinforcement's alignment and posing safety risks such as workers tripping or being scratched by the reinforcement. Consequently, construction quality and safety cannot be effectively guaranteed. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a track-mounted, self-propelled, liftable precast box girder top slab operation trolley.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A track-mounted, self-propelled, liftable precast box girder top slab operation trolley includes:

[0006] Two vertical column heightening blocks for the side formwork of the box girder are respectively set on the top of the two side formworks of the box girder;

[0007] Two tracks are set on the vertical column heightening blocks of the two box girder side formworks;

[0008] The frame is mounted on the track via a traveling mechanism;

[0009] The vertical lifting platform is mounted on the vehicle frame via a lifting drive mechanism.

[0010] The walking mechanism includes:

[0011] Two steel wheels are respectively set at the bottom of the frame and can be fitted onto two rails;

[0012] The drive motor is located at the bottom of the frame and is connected to the main shaft of one of the steel wheels via a reducer.

[0013] The lifting drive mechanism includes:

[0014] Two hydraulic cylinders are mounted on the chassis and located on both sides of the vertical lifting platform, with their telescopic ends connected to the vertical lifting platform.

[0015] The hydraulic cylinder drive system is connected to the hydraulic cylinder via an oil port.

[0016] The vehicle frame is equipped with an audible and visual alarm, a power control box, and a wired remote control.

[0017] The start / stop control section of the power control box is connected to the wired remote control. The power control box is also connected to the power supply components of the walking drive motor and the hydraulic cylinder drive system. The audible and visual alarm is located on the top of the power control box and is connected to it. When the power control box is powered on, the audible and visual alarm is simultaneously powered on to warn surrounding personnel.

[0018] The vertical lifting platform is equipped with safety railings.

[0019] The beneficial effects of this utility model are:

[0020] 1. Compared with the original construction method, during the box girder pouring process, workers need to step on the top plate reinforcement of the box girder for pouring and vibration. This utility model avoids the phenomenon of top plate reinforcement displacement and inaccurate positioning of pre-embedded reinforcement caused by stepping on the top plate reinforcement for vibration during the concrete pouring of precast box girders.

[0021] 2. Compared with some existing work trolleys, this utility model has the characteristics of saving space, easy operation, and easy operation. While ensuring the quality of engineering construction, it improves production efficiency and reduces safety hazards to a certain extent. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a top view of the present invention;

[0024] Attached reference numerals: 1-Chassis; 2-Vertical column heightening block for box girder side formwork; 3-Railway; 4-Steel wheel; 5-Walking drive motor; 6-Hydraulic cylinder; 7-Cylinder drive system; 8-Audible and visual alarm; 9-Power control box; 10-Vertical lifting platform; 11-Safety railing; 12-Wired remote control. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] like Figure 1 and Figure 2As shown, a track-mounted, self-propelled, liftable precast box girder top slab operation trolley includes: two vertical support blocks 2 for the box girder side formwork, respectively mounted on the top of the two side formworks of the box girder; two tracks 3, correspondingly mounted on the two vertical support blocks 2 for the box girder side formwork; a frame 1, mounted on the tracks 3 via a traveling mechanism; and a vertical lifting platform 10, mounted on the frame 1 via a lifting drive mechanism. The traveling mechanism includes: two steel wheels 4, respectively mounted on the bottom of the frame 1 and adaptable to be mounted on the two tracks 3; and a traveling drive motor 5, mounted on the bottom of the frame 1 and connected to the main shaft of one of the steel wheels 4 via a reducer. The lifting drive mechanism includes: two hydraulic cylinders 6, mounted on the frame 1 and located on both sides of the vertical lifting platform 10, with their extension ends connected to the vertical lifting platform 10; and a cylinder drive system 7, connected to the oil ports of the hydraulic cylinders 6. The vehicle frame 1 is equipped with an audible and visual alarm 8, a power control box 9, and a wired remote control 12. The start / stop control section of the power control box 9 is connected to the wired remote control 12. The power control box 9 is also connected to the power supply components of the drive motor 5 and the hydraulic cylinder drive system 7. The audible and visual alarm 8 is located on top of the power control box 9 and is connected to it. When the power control box 9 is powered on, the audible and visual alarm 8 is simultaneously powered on, alerting nearby personnel. A safety railing 11 is installed on the vertical lifting platform 10.

[0027] In use, this utility model is hoisted onto the track 3 using a gantry crane. Workers enter the vertical lifting platform 10. During concrete operation, the operator holds a wired remote control 12 to control the travel drive motor 5, causing the utility model to move back and forth. The wired remote control 12 controls the hydraulic cylinder drive system 7, causing the hydraulic cylinder 6 to move up and down. Concrete pouring workers on the work platform reach the designated position to carry out concrete vibration, finishing and other processes.

[0028] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A track-mounted, self-propelled, liftable precast box girder top slab operation trolley, characterized in that, include: Two vertical column heightening blocks (2) for the side formwork of the box girder are respectively set on the top of the two side formworks of the box girder; Two tracks (3) are set on the vertical column heightening blocks (2) of the two box girder side formworks; The frame (1) is mounted on the track (3) via a traveling mechanism; A vertical lifting platform (10) is mounted on the frame (1) via a lifting drive mechanism.

2. The track-mounted self-propelled lifting precast box girder top slab operation trolley according to claim 1, characterized in that, The walking mechanism includes: Two steel wheels (4) are respectively set at the bottom of the frame (1) and can be adapted to be installed on two rails (3); The walking drive motor (5) is located at the bottom of the frame (1) and is connected to the main shaft of one of the steel wheels (4) through a reducer.

3. The track-mounted self-propelled lifting precast box girder top slab operation trolley according to claim 1, characterized in that, The lifting drive mechanism includes: Two hydraulic cylinders (6) are mounted on the frame (1) and located on both sides of the vertical lifting platform (10), and their telescopic ends are connected to the vertical lifting platform (10). The hydraulic cylinder drive system (7) is connected to the oil port of the hydraulic cylinder (6).

4. The track-mounted self-propelled lifting precast box girder top slab operation trolley according to claim 1, characterized in that: The frame (1) is equipped with an audible and visual alarm (8), a power control box (9), and a wired remote control (12). The start / stop control part of the power control box (9) is connected to the wired remote controller (12). The power control box (9) is connected to the power consumption parts of the walking drive motor (5) and the hydraulic cylinder drive system (7). The audible and visual alarm (8) is set on the top of the power control box (9) and connected to the power control box (9). When the power control box (9) is powered on, the audible and visual alarm (8) is powered on and works synchronously to warn the surrounding staff.

5. The track-mounted self-propelled lifting precast box girder top slab operation trolley according to claim 1, characterized in that: The vertical lifting platform (10) is equipped with a safety railing (11).

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