A device for grouting anchor holes of a new type of bearing for a swing bridge

Abstract

This utility model discloses a device for grouting anchor holes of a novel bearing in a swing bridge, belonging to the technical field of bridge construction equipment. It includes a support plate, a protective shell mounted on the upper surface of the support plate, a grout storage tank mounted on the upper surface of the support plate, and a first motor mounted on the upper surface of the protective shell. This utility model uses the first motor to drive a first stirring shaft, which in turn drives a first stirring blade to slowly agitate the grout in the grout storage tank. Simultaneously, a heating wire continuously provides heat to the tank wall, thus achieving uniform heat transfer. The agitation of the stirring blade also prevents cement and aggregate in the grout from gradually settling due to gravity caused by prolonged static time. The stable pressure generated by a first screw pump forces the grout into a delivery pipe, and the pressure is transmitted to the grouting nozzle through the pipeline. The stable pressure provided by the screw pump then propels the grout to flow directionally along the nozzle, avoiding problems such as grout overflow and grout position deviation commonly seen in traditional grouting methods.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge construction equipment, specifically, it relates to a device for grouting anchor holes of a new type of bearing for a swing bridge. Background Technology

[0002] In the construction of a swing bridge, grouting of the bearing anchor holes is a key process to ensure a reliable connection between the bearing and the bridge structure. As a special type of bridge structure, the construction process of a swing bridge requires the prefabrication of the beam first, and then the beam is rotated into place by a swing device. The bearing is the core component connecting the beam and the substructure, and plays an important role in transferring the beam load (including its own weight, vehicle load, wind force, etc.) to the foundation. The stability of the connection between the bearing and the bridge structure is directly related to the stress balance and structural safety of the swing bridge during operation.

[0003] In the construction of a swing bridge, grouting of the bearing anchor holes is a key process to ensure a reliable connection between the bearing and the bridge structure. However, the space around the bearing anchor holes is usually quite narrow. In such a confined space, traditional grouting methods make it difficult for the grout to flow smoothly and evenly into the anchor holes, which can easily lead to incomplete grouting and affect the quality of the bearing anchorage. At the same time, when operating in a narrow space, the construction efficiency is low, the operation is difficult for workers, and it is difficult to ensure the consistency and stability of the grouting, which in turn affects the safety and durability of the overall structure of the swing bridge. Utility Model Content

[0004] The technical problem this utility model aims to solve is to overcome the shortcomings of the existing technology and provide a device for grouting anchor holes of a new type of bridge support. To address the problem that traditional grouting methods struggle to allow grout to flow smoothly into the anchor holes within confined spaces, the basic concept of this utility model is as follows:

[0005] A device for grouting anchor holes of a novel bearing in a swing bridge includes a support plate, a protective shell mounted on the upper surface of the support plate, a grout storage tank mounted on the upper surface of the support plate, a first motor mounted on the upper surface of the protective shell, a first stirring shaft mounted on the output end of the first motor after penetrating the protective shell, a plurality of first stirring blades mounted on the outer surface of the first stirring shaft, a heating wire mounted on the outer surface of the grout storage tank, a liquid level sensing module mounted on the inner wall of the grout storage tank, a first screw pump mounted above the support plate, the input end of the first screw pump penetrating the protective shell and communicating with the outer surface of the grout storage tank, two support frames mounted on the upper surface of the support plate, a support column mounted on the side of the two support frames that are close to each other, a material conveying pipe provided on the outer surface of the support column, one end of the material conveying pipe communicating with the output end of the first screw pump, and the other end of the material conveying pipe communicating with a grouting nozzle.

[0006] A mixing tank is mounted on the upper surface of the support plate, a second motor is mounted on the upper surface of the mixing tank, and a feed pipe is connected to the upper surface of the mixing tank.

[0007] The output end of the second motor passes through the mixing tank and is fitted with a second mixing shaft, and a second mixing blade is fitted on the outer surface of the second mixing shaft.

[0008] A second screw pump is installed above the support plate, and the input end of the second screw pump is connected to the outer surface of the mixing tank.

[0009] The output end of the second screw pump is connected to a delivery pipe, and the end of the delivery pipe away from the second screw pump is connected to the upper surface of the protective shell.

[0010] A controller is mounted on the upper surface of the support plate, and a pusher is mounted on the outer surface of the support plate.

[0011] The bottom surface of the support plate is equipped with multiple support legs, and each support leg is equipped with a movable wheel at its bottom end.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention uses a first motor to drive a first stirring shaft, which in turn drives a first stirring blade to slowly agitate the grout in the grout storage tank. Simultaneously, a heating wire continuously provides heat to the tank wall, while the stirring blade pushes the high-temperature grout near the tank wall to the center area of ​​the tank, thereby achieving uniform heat transfer and effectively avoiding abnormal viscosity caused by uneven local temperature. At the same time, the agitation of the stirring blade can also prevent cement, aggregate, and other solid particles in the grout from gradually settling due to gravity after a long period of stillness, which could lead to clumping at the bottom of the tank. The stable pressure generated by the first screw pump forces the grout into the delivery pipe, and the pressure is transmitted to the grout nozzle through the pipeline. The stable pressure provided by the screw pump pushes the grout to flow directionally along the nozzle, avoiding problems such as grout overflow and grout position deviation that are common in traditional grouting, ensuring that all the grout can be injected into the anchor hole. Attached Figure Description

[0014] Figure 1 A three-dimensional structural schematic diagram of a device for grouting anchor holes of a new type of bearing for a swing bridge;

[0015] Figure 2 Left view of a device for grouting anchor holes of a new type of bearing for a swing bridge;

[0016] Figure 3 A cross-sectional view of a device for grouting anchor holes of a new type of bearing for a swing bridge;

[0017] Figure 4 A top view of a device for grouting anchor holes of a new type of bearing for a swing bridge;

[0018] Figure 5 This is a front view of a device for grouting anchor holes in a new type of bearing for a swing bridge.

[0019] In the diagram: 1-Support plate; 2-Push handle; 3-Controller; 4-Mixing tank; 5-Second motor; 6-Feed pipe; 7-Conveying pipe; 8-Second screw pump; 9-Support leg; 10-Moving wheel; 11-Support column; 12-Support column; 13-First motor; 14-Protective shell; 15-Grouting nozzle; 16-Conveying pipe; 17-Second mixing shaft; 18-Second mixing blade; 19-First mixing shaft; 20-First mixing blade; 21-Grouting material storage tank; 22-Liquid level sensor module; 23-Heating wire; 24-Second screw pump. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0021] like Figures 1 to 5 As shown, a device for grouting anchor holes of a novel bearing in a swing bridge includes a support plate 1, a protective shell 14 mounted on the upper surface of the support plate 1, a grout storage tank 21 mounted on the upper surface of the support plate 1, a first motor 13 mounted on the upper surface of the protective shell 14, a first stirring shaft 19 mounted on the output end of the first motor 13 after passing through the protective shell 14, a plurality of first stirring blades 20 mounted on the outer surface of the first stirring shaft 19, a heating wire 23 mounted on the outer surface of the grout storage tank 21, and a liquid level sensing module 22, employing a capacitive liquid level sensor, mounted on the inner wall of the grout storage tank, for real-time monitoring. The slurry level is detected and the data is transmitted to the controller 3. When the level is too low, an alarm is triggered to remind the user to replenish the slurry and avoid grouting interruption due to lack of slurry. A first screw pump 24 is installed above the support plate 1. The input end of the first screw pump 24 passes through the protective shell 14 and is connected to the outer surface of the slurry storage tank 21. Two support frames 11 are installed on the upper surface of the support plate 1. A support column 12 is installed on the side of the two support frames 11 that is close to each other. A conveying pipe 16 is provided on the outer surface of the support column 12. One end of the conveying pipe 16 is connected to the output end of the first screw pump 24, and the other end of the conveying pipe 16 is connected to the grouting nozzle 15.

[0022] A mixing tank 4 is mounted on the upper surface of the support plate 1. A second motor 5 is mounted on the upper surface of the mixing tank 4. A feed pipe 6 is connected to the upper surface of the mixing tank 4 and to the top of the mixing tank 4 for adding raw materials such as bagged cement, aggregates, or premixed materials into the mixing tank 4. A second mixing shaft 17 is mounted on the output end of the second motor 5 after passing through the mixing tank 4. A second mixing blade 18 is mounted on the outer surface of the second mixing shaft 17. The second motor 5 provides power for mixing and drives the second mixing shaft 17 to rotate, which in turn drives the second mixing blade 18 to rotate inside the mixing tank 4. The blade mixes the raw materials evenly through shearing and tumbling action, ensuring that the initial slurry meets the construction mix requirements.

[0023] A second screw pump 8 is installed above the support plate 1. The input end of the second screw pump 8 is connected to the outer surface of the mixing tank 4, and the output end of the second screw pump 8 is connected to the delivery pipe 7. The end of the delivery pipe 7 away from the second screw pump 8 is connected to the upper surface of the protective shell 14. The second screw pump 8 draws the mixed slurry from the bottom of the mixing tank 4 and delivers it to the grout storage tank 21 through the delivery pipe 7. The stable delivery capacity of the screw pump prevents the raw materials from segregating during the transfer process, and the delivery pipe 7 serves as a connecting channel to ensure the directional flow of the slurry.

[0024] A controller 3 is installed on the upper surface of the support plate 1, a pusher 2 is installed on the outer surface of the support plate 1, and multiple support legs 9 are installed on the bottom surface of the support plate 1. Each support leg 9 has a movable wheel 10 installed at its bottom end. The support leg 9 is connected to the bottom of the support plate 1 and is used to raise the overall height of the device to prevent the bottom parts from contacting the ground and getting wet. The movable wheel 10 is installed at the bottom end of the support leg 9, which can realize the overall movement of the device and facilitate the adjustment of the work location according to the anchor hole position.

[0025] Working principle: When the grout enters the grout storage tank 21, the first motor 13 starts, and its output drives the first stirring shaft 19 to rotate, which in turn drives the multiple first stirring blades 20 on the outer surface to rotate inside the tank. The stirring blades continuously tumble the grout, which can effectively prevent problems such as aggregate sedimentation and slurry stratification caused by static standing, ensuring that the slurry in the tank always remains in a uniform state. This stirring adopts a low-speed intermittent operation mode, which is regulated by the controller 3. This can ensure the uniformity of the slurry and prevent the introduction of air bubbles due to excessive stirring. If the ambient temperature is low, the heating wire 23 on the outer surface of the grout storage tank 21 will be energized and heat up, raising the temperature of the grout in the tank through heat conduction. The heat is transferred from the tank wall to the central area. At the same time, the stirring blades tumble, making the slurry heated evenly and maintaining a suitable fluidity to avoid excessive viscosity due to low temperature. The heating temperature is automatically adjusted by the controller 3 according to the preset value, which can prevent the temperature from being too high and affecting the setting time of the grout. The liquid level sensor module 22 on the inner wall of the storage tank continuously detects the slurry. The controller 3 will transmit the data to the grouting nozzle 15 in real time. When the liquid level is lower than the set threshold, the controller 3 will issue an audible and visual warning to remind the operator to replenish the grout in time to avoid interruption of the grouting operation due to lack of material. Then, the controller 3 will start the first screw pump 24. Its input end will draw grout from the bottom of the grouting material storage tank 21 through the pipeline. With the help of gravity and the suction of the pump body, the residue in the tank will be reduced. The screw pump will generate stable pressure through the rotation of the screw blades and force the grout into the delivery pipe 16. Since the flow rate and speed of the screw pump are linearly related, the delivery volume can be accurately adjusted by the controller 3. The delivery pipe 16 is usually wrapped around the support column 12. When in use, the operator can remove it manually and extend the delivery distance according to the construction needs to deliver the grout to the grouting nozzle 15. The grouting nozzle 15 adopts a slender structure design, which can smoothly extend into the narrow space around the anchor hole of the support and inject the grout directly into the anchor hole. Under the continuous pressure of the screw pump, the grout will gradually fill the anchor hole after being sprayed out of the nozzle.

Claims

1. A device for grouting anchor holes of a novel bearing in a swing bridge, comprising a support plate, characterized in that, A protective shell is installed on the upper surface of the support plate, and a grout storage tank is installed on the upper surface of the support plate. A first motor is installed on the upper surface of the protective shell, and a first stirring shaft is installed after the output end of the first motor passes through the protective shell. Multiple first stirring blades are installed on the outer surface of the first stirring shaft. A heating wire is installed on the outer surface of the grout storage tank, and a liquid level sensing module is installed on the inner wall of the grout storage tank. A first screw pump is installed above the support plate, and the input end of the first screw pump passes through the protective shell and communicates with the outer surface of the grout storage tank. Two support frames are installed on the upper surface of the support plate, and a support column is installed on the side of the two support frames that are close to each other. A conveying pipe is provided on the outer surface of the support column. One end of the conveying pipe is connected to the output end of the first screw pump, and the other end of the conveying pipe is connected to a grouting nozzle.

2. The device for grouting anchor holes of a novel bearing for a swing bridge according to claim 1, characterized in that, A mixing tank is mounted on the upper surface of the support plate, a second motor is mounted on the upper surface of the mixing tank, and a feed pipe is connected to the upper surface of the mixing tank.

3. The device for grouting anchor holes of a novel bearing for a swing bridge according to claim 2, characterized in that, The output end of the second motor passes through the mixing tank and is fitted with a second stirring shaft, and a second stirring blade is mounted on the outer surface of the second stirring shaft.

4. The device for grouting anchor holes of a new type of bearing for a swing bridge according to claim 3, characterized in that, A second screw pump is installed above the support plate, and the input end of the second screw pump is connected to the outer surface of the mixing tank.

5. The device for grouting anchor holes of a novel bearing for a swing bridge according to claim 4, characterized in that, The output end of the second screw pump is connected to a delivery pipe, and the end of the delivery pipe away from the second screw pump is connected to the upper surface of the protective shell.

6. The device for grouting anchor holes of a novel bearing for a swing bridge according to claim 1, characterized in that, A controller is mounted on the upper surface of the support plate, and a pusher is mounted on the outer surface of the support plate.

7. The device for grouting anchor holes of a novel bearing for a swing bridge according to claim 6, characterized in that, The bottom surface of the support plate is equipped with multiple support legs, and each support leg is equipped with a movable wheel at its bottom end.

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