A rotary platform for muck removal in tunnels

Abstract

This utility model relates to the field of tunnel excavation technology, specifically disclosing a rotary platform for tunnel muck removal, including a support platform and a drive motor. The support platform is located below the discharge port, and the drive motor is located below the support platform. The support platform is flush with the traveling surface of the muck removal equipment. The output end of the drive motor is connected to the support platform, enabling the support platform to rotate in a horizontal plane. This solves the problem in the prior art where small muck removal vehicles cannot turn around, resulting in low muck removal efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel excavation technology, specifically to a rotary platform for tunnel muck removal. Background Technology

[0002] Tunnel excavation refers to the engineering process of loosening, breaking, excavating, and transporting excavated soil or rock during tunnel construction. It is widely used in water conservancy projects for water diversion, drainage, flow control, transportation, and other tunnel construction. In water conservancy, municipal, and transportation tunnel projects, there are tunnels requiring smaller cross-sections, such as water diversion tunnels, utility tunnels, pedestrian passages, maintenance passages, and culverts.

[0003] Currently, there is no complete and efficient muck removal system for tunnels. Usually, muck trucks are driven to the muck discharge port to load muck, and then the muck trucks drive out to discharge the muck. However, due to the structural characteristics of the circular cross-section of the tunnel, the working face is narrow, and it is difficult for muck trucks to turn around inside the tunnel, resulting in low muck removal efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a rotary platform for slag removal, so as to solve the problem in the background art that it is difficult for slag trucks to turn around, which leads to low slag removal efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a rotary platform for tunnel slag removal, including a support platform and a drive motor. The support platform is located below the discharge port, and the drive motor is located below the support platform. The support platform is flush with the traveling surface of the slag removal equipment. The output end of the drive motor is connected to the support platform, so that the support platform rotates in the horizontal plane. The support platform has a first track and a second track arranged in parallel on its upper surface, and a third track and a fourth track arranged in parallel on the path from the tunnel entrance to the support platform. One end of the first track is connected to the third track, and one end of the second track is connected to the fourth track. After the support platform is rotated 180°, the other end of the first track is connected to the fourth track, and the other end of the second track is connected to the third track. The slag removal equipment can run on the first track, the second track, the third track, and the fourth track. A lifting plate is fixedly installed at the output end of the drive motor. Multiple cylinders are evenly distributed on the lifting plate, and the output ends of the multiple cylinders are all connected to the bottom of the support platform.

[0006] Furthermore, the cylinder is divided into two groups, with the two groups of cylinders evenly distributed below the first track and the second track respectively; a pressure sensor is installed on the top of the output end of the cylinder, and the output end of the cylinder is connected to the bottom of the support platform through the pressure sensor.

[0007] Furthermore, a base plate is installed at the bottom of the drive motor, and a support ring is provided around the drive motor. The bottom of the support ring is fixedly installed on the base plate, and the top of the support ring abuts against the support platform or the lifting plate.

[0008] Furthermore, it also includes a controller, which is connected to the drive motor, cylinder and pressure sensor respectively.

[0009] Compared with the prior art, this utility model has the following advantages and beneficial effects: This utility model is used for turning around slag transport equipment. The support platform is located below the discharge port. When the slag transport equipment moves onto the support platform, it can be loaded with slag. After loading, the drive motor drives the support platform to rotate on the horizontal plane, thereby completing the turning around of the slag transport equipment. After turning around, the slag transport equipment will be easier to drive when exiting the tunnel, thereby improving the overall efficiency of slag transport. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of the present invention.

[0011] Figure 2 This is a diagram showing the connection between this utility model and the third and fourth tracks.

[0012] The labels in the diagram are as follows: 1-support platform, 2-first track, 3-second track, 4-lifting plate, 5-cylinder, 6-drive motor, 7-base plate, 8-support ring, 9-third track, 10-fourth track. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0014] like Figure 1 , Figure 2 As shown, a rotary platform for tunnel muck removal includes a support platform 1 and a drive motor 6. The support platform 1 is located below the discharge port, and the drive motor 6 is located below the support platform 1. The support platform 1 is flush with the running surface of the muck truck. The output end of the drive motor 6 is connected to the support platform 1, so that the support platform 1 rotates in the horizontal plane.

[0015] This utility model is used for turning around a slag transport equipment. The support platform 1 is located below the discharge port. When the slag transport equipment runs onto the support platform 1, it can be loaded with slag. After the slag is loaded, the drive motor 6 drives the support platform 1 to rotate on the horizontal plane, thereby completing the turning around of the slag transport equipment. After the slag transport equipment turns around, it will be easier to drive when exiting the tunnel, thereby improving the overall efficiency of slag transport.

[0016] It is important to note that the aforementioned muck-transporting equipment is a general concept and does not refer solely to the muck-transporting truck mentioned in the background art. It can be a tractor-mounted truck with a single truck body serving as the muck-transporting device and a tractor unit as the drive, or it can be a muck-transporting truck itself. Turning a muck-transporting truck requires continuous forward and backward movement and fine-tuning of its direction, thus requiring a certain amount of space. Therefore, under normal circumstances, tunnels do not support the turning of muck-transporting trucks. In this invention, the muck-transporting truck completes the turning process while remaining relatively stationary; therefore, it is sufficient to ensure that the length of the muck-transporting truck is less than the bottom width of the tunnel. In certain large-sized tunnels, muck-transporting trucks can also turn around. This application addresses the situation where existing muck-transporting trucks cannot turn around in tunnels of conventional size, but can do so using this structure.

[0017] Furthermore, a first track 2 and a second track 3 are arranged parallel to each other on the upper surface of the support platform 1, and a third track 9 and a fourth track 10 are arranged parallel to each other on the path from the tunnel entrance to the support platform 1. One end of the first track 2 is connected to the third track 9, and one end of the second track 3 is connected to the fourth track 10. After the support platform 1 rotates 180°, the other end of the first track 2 is connected to the fourth track 10, and the other end of the second track 3 is connected to the third track 9. The muck-carrying equipment can run on the first track 2, the second track 3, the third track 9, and the fourth track 10. Setting the first track 2, the second track 3, the third track 9, and the fourth track 10 is to standardize the transportation route, dividing the tunnel space into two routes. The muck-carrying equipment travels into the tunnel via the third track 9, and after reaching the first track 2 of the support platform 1 and completing the muck loading, the support platform 1 rotates, so that the first track 2 is connected to the fourth track 10 again, and the muck-carrying equipment exits from the fourth track 10 to the outside of the tunnel. After the support platform 1 rotates, the third track 9 connects to the second track 3 of the support platform 1. Another muck-carrying device can move into the tunnel while the previous device is withdrawing, completing the inward and outward movement in an alternating manner, thus improving muck-carrying efficiency. This track configuration is more suitable for muck-carrying equipment such as wagons. Tractors are installed on both the third track 9 and the fourth track 10. The tractor on the third track 9 connects to multiple empty wagons in sequence. The tractor pushes the empty wagons into the tunnel as a whole, allowing the innermost wagon to reach the support platform 1 to complete the muck loading. After loading, the loaded wagon is disconnected, and the support platform 1 rotates to connect with the tractor on the fourth track 10. Then, the tractor on the third track 9 moves inward again, repeating the operation. This improves loading efficiency and reduces energy consumption during muck-carrying. The connection and disconnection between wagons can be electrically controlled or manually operated.

[0018] Furthermore, a lifting plate 4 is fixedly installed at the output end of the drive motor 6. Multiple evenly distributed cylinders 5 are mounted on the lifting plate 4, and the output ends of all cylinders 5 are connected to the bottom of the support platform 1. The function of the lifting plate 4 and cylinders 5 is to allow the support platform 1 to rise or fall, making it higher or lower than the travel surface. This is for slag transport equipment such as caravans, completing the mechanical disconnection and connection. When caravans are connected using locking rings and hooks, the locking rings and vertical hooks can connect horizontally, allowing for both pushing and pulling without disengagement. Vertically, the locking rings move upwards, disengaging from the hooks. After the caravan is loaded with slag and completes a 180° rotation, the cylinders 5 lower the support platform 1 below the travel surface during rotation. The hook on the other side engages with the locking ring of the previous caravan. The locking ring is stationary, and the hook is below. The support platform 1 is then raised to engage with the locking ring.

[0019] Furthermore, the cylinders 5 are divided into two groups, with each group evenly positioned below the first track 2 and the second track 3. Pressure sensors are installed on the top of the output ends of the cylinders 5, and these sensors are connected to the bottom of the support platform 1. With the cylinders 5 divided into two groups, the pressure sensors, distributed below the first track 2 and the second track 3, detect the weight of each track. When the weight on one end of the support platform 1 is heavier, and the center of gravity is not in the center of the support platform 1, the data from the two pressure sensors will differ. This difference can be used to detect which side of the support platform 1 supports the slag-carrying equipment. In the event of a sudden power outage and restart or a mid-operation stop, whether the slag-loaded car on the rotating platform is in a non-rotating or rotated state can be determined by the weight difference between the first track 2 and the second track 3. It should be noted that although the cylinders 5 also rotate with the support platform 1, determining the rotation position of the lifting platform is a very simple technique in electrical control.

[0020] Furthermore, a base plate 7 is mounted on the bottom of the drive motor 6, and a support ring 8 is fitted around the drive motor 6. The bottom of the support ring 8 is fixedly mounted on the base plate 7, and the top of the support ring 8 abuts against the support platform 1 or the lifting plate 4. The drive end of the drive motor 6 is mounted on the base plate 7, and the support ring 8 is installed on the edge of the base plate 7. The top of the support ring 8 abuts against the bottom of the lifting plate 4, and the support ring 8 is used to support the lifting plate 4. If the entire rotary platform is supported by the drive motor 6, there will be instability or the lifespan of the drive motor 6 may be affected. Adding the support ring 8 is to distribute the weight of the rotary platform and reduce the pressure on the drive motor 6.

[0021] Furthermore, it also includes a controller, which is connected to the drive motor 6, cylinder 5, and pressure sensor. The pressure sensor detects the status of the rotary platform. The weight of the rotary platform without a car, the weight of the rotary platform with an empty car, and the weight of the rotary platform with a car full of slag represent different stages of the work process, and are the basis for the controller to make the next instruction. With this basis, based on the functions that the controller can achieve in the prior art, the lifting and rotation of the rotary platform in this invention can be carried out automatically, reducing manual operation and saving manpower.

[0022] The structure of this utility model is spliced. The first track 2 and the second track 3 can be spliced ​​at different lengths. The position of the support platform 1 can be moved forward according to the forward movement of the slag discharge point. Then, the longer first track 2 and second track 3 are spliced ​​to the tunnel entrance to complete the setting of this utility model.

[0023] It should be noted that the structure of the controller is not an improvement of the present invention. The controller is a common one in the prior art, which can turn the drive motor 6 on and off, drive the cylinder 5 and issue different instructions to receive data from the pressure sensor. This is a conventional device in the prior art.

[0024] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0025] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model 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 or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rotary platform for tunnel slagging, characterized in that: Includes a support platform (1) and a drive motor (6). The support platform (1) is located below the discharge port, and the drive motor (6) is located below the support platform (1). The support platform (1) is flush with the walking surface of the slag conveying equipment. The output end of the drive motor (6) is connected to the support platform (1) so that the support platform (1) rotates in the horizontal plane; The support platform (1) is provided with a first track (2) and a second track (3) arranged in parallel on its upper surface, and a third track (9) and a fourth track (10) are arranged in parallel on the path from the tunnel entrance to the support platform (1). One end of the first track (2) is connected to the third track (9), and one end of the second track (3) is connected to the fourth track (10). After the support platform (1) rotates 180°, the other end of the first track (2) is connected to the fourth track (10), and the other end of the second track (3) is connected to the third track (9). The slag removal equipment can operate on the first track (2), the second track (3), the third track (9) and the fourth track (10); The output end of the drive motor (6) is fixedly installed with a lifting plate (4), and multiple cylinders (5) are evenly distributed on the lifting plate (4). The output ends of the multiple cylinders (5) are all connected to the bottom of the support platform (1).

2. A rotary platform for tunnel slagging according to claim 1, characterized in that: The cylinder (5) is divided into two groups, and the two groups of cylinders (5) are evenly located below the first track (2) and the second track (3), respectively; A pressure sensor is installed on the top of the output end of the cylinder (5), and the output end of the cylinder (5) is connected to the bottom of the support platform (1) through the pressure sensor.

3. A rotary platform for tunnel slagging according to claim 1, characterized in that: The drive motor (6) is mounted on a base plate (7), and a support ring (8) is mounted on the drive motor (6). The bottom of the support ring (8) is fixedly mounted on the base plate (7), and the top of the support ring (8) abuts against the support platform (1) or the lifting plate (4).

4. A rotary platform for tunnel slagging according to claim 2, characterized in that: It also includes a controller, which is connected to the drive motor (6), cylinder (5) and pressure sensor respectively.

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