Lifting mechanism facilitating transfer of lagging jack and tunnel construction all-in-one machine

Abstract

The utility model discloses a lifting mechanism and tunnel construction all-in-one machine convenient for lagging jack transfer, which comprises a rotating arm for supporting a lagging jack, the rotating arm is connected with a rotating mechanism for driving the rotating arm to rotate around an axial direction parallel to the rotating arm, and the rotating mechanism is connected with a lifting mechanism for driving the rotating mechanism to move up and down. A plurality of anti-skid structures are arranged on the rotating arm in the extending direction of the rotating arm, a sliding assisting structure is connected to the end face, away from the rotating mechanism, of the rotating arm, the axis of the sliding assisting structure is parallel to the extending direction of the rotating arm, and the outer wall of the sliding assisting structure is cylindrical. According to the utility model, the friction force between the lagging jack and the rotating arm can be increased when the lagging jack is lifted, and the friction force between the lagging jack and the rotating arm can be reduced when the mechanical arm lifts the lagging jack from the rotating arm.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering equipment technology, specifically to a lifting mechanism and integrated tunnel construction machine that facilitates the transfer of arch frames. Background Technology

[0002] During tunnel construction, a trolley is typically used to lift the arch frame and transport it to the working face. A lifting mechanism is usually used for lifting the arch frame. Existing lifting mechanisms, such as those described in Chinese patent application CN220098410U, typically consist of a lifting arm, a hydraulic cylinder mounting base, and an adjusting device for the lifting hydraulic cylinder base. Both ends of the lifting arm are hinged to supports on the lifting frame and base, respectively. When the lifting arm extends or retracts, the adjusting device moves at a constant speed, pushing the base of the lifting hydraulic cylinder along a slide rail. The hydraulic cylinder is mounted on the base, and the lifting function is achieved through the adjustment device.

[0003] However, during the operation of the lifting mechanism, the arch frame and the lifting arm may experience relative displacement due to insufficient friction, causing the arch frame to slip and resulting in safety accidents or economic losses. Furthermore, after the folding arch frame of the CN220098410U lifting mechanism is unfolded, the side arch will press tightly against the rotating arm of the lifting mechanism due to gravity, resulting in significant friction between the rotating arm and the arch frame support. If the folding arch frame is moved directly at this time, this friction will drag the rotating arm, inevitably leading to deformation of the lifting mechanism over time and affecting its structural performance. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting mechanism and tunnel construction integrated machine that facilitates the transfer of arch frames. It can increase the friction between the arch frame and the rotating arm when lifting the arch frame, and reduce the friction between the arch frame and the rotating arm when the mechanical arm lifts the arch frame from the rotating arm.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0006] Firstly, a lifting mechanism for facilitating the transfer of an arch frame includes a rotating arm for supporting the arch frame. The rotating arm includes an anti-slip surface and an auxiliary sliding surface. The anti-slip surface has an anti-slip structure, and the auxiliary sliding surface has an auxiliary sliding structure. The rotating arm is connected to a rotating mechanism that drives the rotating arm to rotate about an axis parallel to itself. The rotating mechanism is connected to a lifting mechanism for driving the rotating mechanism to move up and down. During the process of the lifting mechanism driving the rotating arm to lift the arch frame, the anti-slip surface abuts against the arch frame; after the rotating mechanism drives the rotating arm to rotate, when the robotic arm grabs the arch frame on the rotating arm, the auxiliary sliding surface abuts against the arch frame. The auxiliary sliding structure is cylindrical, and the cross-section of the auxiliary sliding structure is a closed figure shape such as a circle, ellipse, or polygon. The rotating mechanism and the lifting mechanism are common prior art in lifting mechanisms as described in Chinese patent application CN220098410U, and will not be described in detail. The anti-slip structure adopts protrusions or grooves. Its function is as follows: by setting up the anti-slip structure, during the process of the lifting mechanism driving the arch frame located on the rotating arm to rise, the anti-slip surface faces upward and contacts the bottom surface of the arch frame, thereby increasing the friction between the rotating arm and the arch frame, thus effectively preventing the arch frame from slipping during the lifting process; by setting up the sliding aid structure, during the process of the robotic arm grabbing the arch frame, the arch frame contacts the sliding aid structure. Through the design of the shape of the sliding aid structure, the friction between the sliding aid structure and the arch frame can be effectively reduced, thereby reducing the pull of the arch frame on the rotating arm and extending the service life of the lifting structure.

[0007] Furthermore, multiple anti-slip structures are evenly distributed at intervals along the extension direction of the rotating arm on the anti-slip surface.

[0008] Furthermore, the anti-slip structure is in the form of a horizontal strip perpendicular to the extension direction of the rotating arm.

[0009] Furthermore, the sliding aid structure is a strip shape, and the length of the sliding aid structure is greater than the length of the rotating arm.

[0010] The sliding structure is set parallel to the rotating arm. Its function is to ensure that, during the process of the robotic arm picking up the arch and lifting it off the rotating arm, the arch will move outward a certain distance. Through the design of the length of the sliding structure, it can maintain contact with the outwardly moving arch.

[0011] Furthermore, the sliding aid structure is welded to the entire sidewall of the rotating arm.

[0012] Furthermore, the rear end of the rotating arm is connected to a mounting plate, the rear end of the sliding aid structure is connected to the mounting plate, and the sliding aid structure is connected to the side wall of the front end of the rotating arm.

[0013] Secondly, a tunnel construction integrated machine includes a platform. A mechanical arm for gripping an arch frame is mounted on the top of the platform. A lifting mechanism for facilitating arch frame transfer is provided on each of the left and right sides of the platform's rear end. The two lifting mechanisms at the rear end of the platform are symmetrically arranged around the platform. A lifting mechanism is connected to the rear end of the platform. When the rotating mechanism drives the rotating arm to its lowest position, the sliding structure on the left side of the rotating arm at the rear end of the platform is located on the left side of the rotating arm's end face, and the sliding structure on the right side of the rotating arm at the rear end of the platform is located on the right side of the rotating arm's end face. The platform with the mechanical arm adopts the prior art described in Chinese patent application CN116557045B, which will not be elaborated further. Its function is that, through the design of the spatial position of the lifting mechanism on the platform and the design of the position of the sliding structure on the end face of the corresponding rotating arm, the sliding structures on both rotating arms can contact the arch frame when the rotating mechanisms on both sides drive their respective rotating arms to rotate.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting up an anti-slip structure, the friction between the rotating arm and the arch frame is increased when the anti-slip surface faces upward and contacts the bottom surface of the arch frame during the lifting process. This effectively prevents the arch frame from slipping during the lifting process.

[0016] 2. During the process of the robotic arm grabbing the arch frame, the arch frame comes into contact with the sliding structure. Through the design of the shape of the sliding structure, the friction between the sliding structure and the arch frame can be effectively reduced, thereby reducing the pulling of the arch frame on the rotating arm and extending the service life of the lifting structure. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the lifting mechanism in Example 1;

[0018] Figure 2 This is a rear view schematic diagram of the tunnel integrated machine in Example 1;

[0019] Figure 3 This is a three-dimensional structural diagram of the lifting mechanism in Example 2.

[0020] Reference numerals: 1. Rotating arm; 2. Rotating mechanism; 3. Lifting mechanism; 4. Anti-slip structure; 5. Slip-aiding structure; 6. Mounting plate; 7. Platform. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1

[0025] A lifting mechanism that facilitates the transfer of arch frames, such as Figure 1 As shown, the system includes a rotating arm 1 for supporting an arch frame. The rotating arm includes an anti-slip surface and an auxiliary sliding surface. The anti-slip surface has an anti-slip structure 4, and the auxiliary sliding surface has an auxiliary sliding structure 5. The rotating arm 1 is connected to a rotating mechanism 2 that drives the rotating arm 1 to rotate about an axis parallel to itself. The rotating mechanism 2 is connected to a lifting mechanism 3 that drives the rotating mechanism 2 to move up and down. During the process of the lifting mechanism 3 driving the rotating arm 1 to lift the arch frame, the anti-slip surface abuts against the arch frame. After the rotating mechanism 2 drives the rotating arm to rotate, when the robotic arm grabs the arch frame on the rotating arm 1, the auxiliary sliding surface abuts against the arch frame. The rotating arm 1 has multiple anti-slip structures 4 along its extension direction. The side wall of the rotating arm 1 adjacent to the surface with the anti-slip structure 4 is provided with an auxiliary sliding structure 5. The axis of the auxiliary sliding structure 5 is parallel to the extension direction of the rotating arm 1, and the outer wall of the auxiliary sliding structure 5 is cylindrical. Its function is as follows: by setting the anti-slip structure 4, the friction between the rotating arm 1 and the arch frame can be increased during the process of the lifting mechanism 3 driving the arch frame located on the rotating arm 1 to rise, thereby effectively preventing the arch frame from slipping during the lifting process; by setting the sliding aid structure 5, the friction between the sliding aid structure 5 and the arch frame can be effectively reduced during the process of the robotic arm grabbing the arch frame and leaving the rotating arm 1, thereby reducing the pulling of the arch frame on the rotating arm 1 and extending the service life of the lifting structure.

[0026] Specifically, such as Figure 1As shown, all the aforementioned anti-slip structures 4 are evenly distributed along the extending direction of the rotating arm 1. Specifically, as... Figure 1 As shown, the anti-slip structure 4 is a horizontal strip that is perpendicular to the extension direction of the rotating arm 1.

[0027] Specifically, the length of the sliding structure 5 is greater than the length of the rotating arm 1. Its function is that, during the process of the robotic arm picking up the arch frame and lifting it off the rotating arm 1, the arch frame will move outward a certain distance. Through the design of the length of the sliding structure 5, it can maintain contact with the outwardly moving arch frame.

[0028] Specifically, the sliding structure 5 is welded to the entire side wall of the rotating arm 1.

[0029] Secondly, a tunnel construction integrated machine, such as... Figure 2 As shown, the device includes a platform 7, with a robotic arm on top for gripping the arch frame. A lifting mechanism for facilitating the transfer of the arch frame is provided on each of the left and right rear ends of the platform 7. The two lifting mechanisms at the rear end of the platform 7 are symmetrically arranged around the platform 7. A lifting mechanism 3 is connected to the rear end of the platform 7. When the rotating mechanism 2 drives the rotating arm 1 to its lowest position, the sliding structure 5 on the left side of the rotating arm 1 at the rear end of the platform 7 is located on the left side of the end face of the rotating arm 1, and the sliding structure 5 on the right side of the rotating arm 1 at the rear end of the platform 7 is located on the right side of the end face of the rotating arm 1.

[0030] The working principle of this embodiment is as follows: A lifting mechanism is provided on each of the left and right sides of the rear end of the trolley. At the initial position before lifting the arch frame, the rotating arm 1 is at its lowest point, and the surface of the anti-slip structure 4 faces upwards. The arch frame is placed on the two rotating arms 1 from top to bottom, and the arch frame contacts the anti-slip structure 4. Then, the lifting mechanism 3 drives the rotating arm 1 and the arch frame to move upwards. During this process, due to the anti-slip structure 4, the friction between the arch frame and the rotating arm 1 is increased, effectively improving the stability of the arch frame's upward movement. After the arch frame moves to the preset position, the robotic arm grasps the arch frame, and the rotating mechanism 2 flips the rotating arm 1 outwards. Figure 2 As shown, from the rear view of the platform 7, the rotating arm 1 on the left side of the platform 7 rotates clockwise, and the rotating arm 1 on the right side of the platform 7 rotates counterclockwise, so that the arch frame falls on the sliding structure 5. When the arch frame moves relative to the sliding structure 5, the friction between the arch frame and the sliding structure 5 is small.

[0031] Example 2

[0032] The rear end of the rotating arm 1 is connected to the mounting plate 6, the rear end of the sliding structure 5 is connected to the mounting plate 6, and the sliding structure 5 is connected to the side wall at the front end of the rotating arm 1.

[0033] The rest of the structure and working principle are the same as in Example 1.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A lifting mechanism for facilitating the transfer of arches, comprising a rotating arm (1), characterized in that: The rotating arm (1) comprises an anti-skid surface and a slip-assisting surface, the anti-skid surface is provided with anti-skid structures (4), the slip-assisting surface is provided with slip-assisting structures (5), a plurality of anti-skid structures (4) are evenly distributed along the extending direction of the rotating arm (1) on the anti-skid surface, the anti-skid structures (4) are in the shape of horizontal strips arranged perpendicularly to the extending direction of the rotating arm (1), the slip-assisting structures (5) are in the shape of strips, and the length of the slip-assisting structures (5) is greater than the length of the rotating arm (1) and the slip-assisting structures (5) are welded to the side wall of the rotating arm (1).

2. The lifting mechanism for facilitating the transfer of arches according to claim 1, wherein: The rear end of the rotating arm (1) is connected with a mounting plate (6), the rear end of the slip-assisting structures (5) is connected with the mounting plate (6), and the slip-assisting structures (5) are connected with the side wall of the front end of the rotating arm (1).

3. A tunnel construction all-in-one machine comprising a gantry (7), characterized in that: The rear end of the gantry (7) is respectively provided with a lifting mechanism on the left side and the right side, and the lifting mechanism is the lifting mechanism convenient for transferring the arch frame according to any one of claims 1-2.

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