Unilateral lifting device for air storage barrel of shield tunneling machine

Abstract

The utility model discloses a single-side lifting device for an air storage barrel of a shield tunneling machine. The single-side lifting device solves the problem that an air storage barrel lifting device occupies too large clearance of a trailer in the prior art. The single-side lifting device for the air storage barrel of the shield tunneling machine comprises an air storage barrel mounting frame arranged on one side of an air barrel platform, a lifting frame is arranged on the air storage barrel mounting frame, the lifting frame moves up and down along the air storage barrel mounting frame under the action of a chain wheel and chain lifting mechanism, the occupied space of a trailer is reduced, stable lifting of the air storage barrel is guaranteed, and the service life of the air storage barrel is prolonged. The lifting frame is provided with a fixing piece used for fixing the air storage barrel. And the air storage barrel is prevented from shaking in the lifting process. According to the air storage barrel lifting device, the lifting frame is stably lifted by arranging the chain wheel and chain lifting mechanism, a chain wheel and a chain are compact in structure and are attached to the air storage barrel mounting frame, the structure of the air storage barrel mounting frame is optimized, the clearance occupation of a trailer is reduced, and the air storage barrel of a shield tunneling machine with insufficient top space of an air barrel platform can be replaced; and moreover, the device can be applied to small-diameter shield tunneling machines, conventional shield tunneling machines and large-diameter shield tunneling machines, and has a relatively high popularization value.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machine tunnel construction, in particular to a unilateral lifting device for a shield machine air storage cylinder. Background Technique

[0002] During the process of tunnel construction using a shield machine, in order to ensure continuous ventilation in the tunnel when the shield machine advances forward, an air storage cylinder is required to extend the flexible air duct. The air storage cylinder is generally placed on the top of the air duct platform of the shield machine trailer. During tunneling, by releasing the flexible air duct stored inside the air storage cylinder, the tunnel air duct can be extended for a certain distance. However, due to storage space limitations, the flexible air duct stored in a single air storage cylinder is limited. Therefore, it is necessary to continuously extend the tunnel flexible air duct by replacing the air storage cylinder to meet the needs of the entire tunneling section. Therefore, it is necessary to design an air storage cylinder replacement device on the trailer of the tunneling machine to quickly realize the replacement of the air storage cylinder.

[0003] In recent years, with the increasing application of shield machines in tunnel construction, for shield machines with limited installation space at the tail trailer, due to the limited installation space on the top of the air duct platform, the traditional bilateral lifting bracket air storage cylinder replacement method is not applicable. Therefore, a variety of new air storage cylinder replacement devices have emerged. In the prior art, for example, the utility model patent with the application number 202021310212.7 discloses an air storage cylinder replacement device. Although it realizes the unilateral replacement of the air storage cylinder, the lifting structure occupies too much of the trailer's net space, resulting in the inability of the formation train transporting the air storage cylinder to travel along the tunnel center line, which will have an impact on subsequent construction. Summary of the Utility Model

[0004] Aiming at the deficiencies in the above background technique, the utility model proposes a unilateral lifting device for a shield machine air storage cylinder, which solves the problem that the air storage cylinder lifting device in the prior art occupies too much of the trailer's net space.

[0005] The technical solution of the utility model is realized as follows: A unilateral lifting device for a shield machine air storage cylinder includes an air storage cylinder mounting frame arranged on one side of the air duct platform. An elevating frame is arranged on the air storage cylinder mounting frame. The elevating frame moves up and down along the air storage cylinder mounting frame under the action of a sprocket chain lifting mechanism, reducing the occupied area of the trailer space and ensuring the stable lifting of the air storage cylinder. A fixing member for fixing the air storage cylinder is arranged on the elevating frame to prevent the air storage cylinder from shaking during the lifting process.

[0006] Further preferably, the sprocket chain lifting mechanism includes a bottom frame arranged at the bottom of the air storage cylinder mounting frame. A driving motor is arranged on the bottom frame. The output end of the driving motor is connected with a driving shaft. A driving sprocket is arranged on the driving shaft. The driving sprocket and a driven sprocket arranged at the top of the air storage cylinder mounting frame are arranged corresponding to each other up and down. A chain is arranged on the driving sprocket and the corresponding driven sprocket. The elevating frame is connected to the chain.

[0007] Further preferably, the driven sprocket is symmetrically arranged on the left and right sides of the air storage cylinder mounting frame, the driving shaft is arranged on the base frame through the bearing seat, and two corresponding active sprockets are arranged on the driving shaft, and the lifting frame moves up and down through two chains to ensure the stability of the lifting movement.

[0008] Further preferably, a guide mechanism is provided between the lifting frame and the air storage cylinder mounting frame, and the provision of the guide mechanism further ensures stable lifting of the lifting frame.

[0009] As a preferred solution, the guide mechanism includes guide rails arranged on both sides of the air storage cylinder mounting frame and guide wheels arranged on both sides of the lifting frame. The guide wheels are rollingly matched with the corresponding guide rails, and the lifting frame moves up and down along the guide rails through the guide wheels.

[0010] As another preferred solution, the guide mechanism includes guide posts symmetrically arranged on the air storage cylinder mounting frame and guide sleeves arranged on both sides of the lifting frame, and the guide sleeves are sleeved on the guide posts and matched with the guide posts.

[0011] Further preferably, a roller corresponding to the guide post is embedded on the inner wall of the guide sleeve to convert sliding into rolling, thereby reducing friction between the guide post and the guide sleeve.

[0012] Further preferably, the fixing member comprises a flange plate arranged on the lifting frame, and a directional pin is arranged on the flange plate, and the directional pin matches with a directional hole on the air storage cylinder. In this case, when the lifting frame descends to the lowest point, the directional pin can match with the directional hole of the air storage cylinder on the transport vehicle.

[0013] Further preferably, the lifting frame is provided with a fixing plate, the fixing plate is provided with a height-adjustable flange plate, the flange plate is provided with a plurality of pin holes, and a directional pin is detachably provided in the pin hole.

[0014] The beneficial effects of the utility model are as follows: the air storage cylinder lifting device of the utility model stably lifts the lifting frame by setting a sprocket chain lifting mechanism. The sprocket chain has a compact structure and fits the air storage cylinder mounting frame, which optimizes the structure of the air storage cylinder mounting frame and reduces the occupancy of the trailer clearance. It can not only meet the needs of replacing the air storage cylinder of the shield machine with insufficient space on the top of the air storage cylinder platform, but also meet the needs of the central driving of tunnel vehicles. The applicable scope includes small-diameter shield machines, conventional shield machines and large-diameter shield machines, and has a high promotion value. The utility model can cooperate with the transport vehicle to realize the rapid transportation of the air storage cylinder and further improve the lifting and installation efficiency of the air storage cylinder. Through the cooperation of the sprocket chain lifting mechanism and the guide mechanism, the lifting frame is ensured to move stably and accurately within the height range of the transport vehicle and the top installation position, which greatly improves the replacement efficiency of the air storage cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the utility model being installed on a wind tube platform.

[0017] Figure 2 It is a main schematic diagram of the utility model.

[0018] Figure 3 This is a schematic diagram of lifting the air storage cylinder to the top of the utility model.

[0019] Figure 4 This is a top view schematic diagram of the guide mechanism in Example 4. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 As shown, in Example 1, a shield machine air storage cylinder unilateral lifting device includes an air storage cylinder mounting frame 1 arranged on one side of the air storage cylinder platform 5; in the actual implementation project, the air storage cylinder mounting frame 1 is preferably arranged on the left side of the air storage cylinder platform to meet the positioning and fixing of the air storage cylinder and the central driving of the tunnel vehicle. A lifting frame 1.1 is provided on the air storage cylinder mounting frame 1. The lifting frame 1.1 moves up and down along the air storage cylinder mounting frame 1 under the action of the sprocket chain lifting mechanism. In this embodiment, a sprocket chain is used to lift the lifting frame. The sprocket chain has a compact structure and fits the air storage cylinder mounting frame, which reduces the amount of trailer headroom occupied and solves the problem of large trailer headroom occupied by the air storage cylinder lifting equipment in the prior art. In this embodiment, the lifting frame 1.1 is provided with a fixing for fixing the air storage cylinder 4. The setting of the fixing ensures the stability of the air storage cylinder during the lifting process. The transport vehicle 3 is used to transport the air storage cylinder 4. It moves in the middle of the rear supporting trailer and can transport the air storage cylinder 4 to the lifting frame 1.1, thereby realizing the transportation of the air storage cylinder and further improving the lifting and installation efficiency of the air storage cylinder.

[0022] As a preferred solution, in this embodiment, the sprocket-chain lifting mechanism includes a chassis 1.5 disposed at the bottom of the air storage cylinder mounting bracket 1. The chassis is located at the bottom of the air storage cylinder mounting bracket and is flush with the air storage cylinder mounting bracket. A driving motor 2.1 is provided on the chassis 1.5. The output end of the driving motor 2.1 is connected to a driving shaft 2.2. A driving sprocket 2.3 is provided on the driving shaft 2.2. The driving sprocket 2.3 and a driven sprocket 2.5 provided at the top of the air storage cylinder mounting bracket 1 are arranged corresponding to each other vertically. A chain 2.4 is provided on the corresponding driving sprocket 2.3 and driven sprocket 2.5. The lifting frame 1.1 is connected to the chain 2.4. Under the action of the driving motor, the driving shaft drives the driving sprocket and the driven sprocket to rotate, thereby realizing the up and down movement of the chain driving the lifting frame and realizing the lifting of the lifting frame.

[0023] In this embodiment, as a preferred solution, there are two driven sprockets 2.5, which are symmetrically arranged on the left and right sides of the air storage cylinder mounting bracket 1. The driving shaft 2.2 is arranged on the chassis 1.5 through a bearing seat, and two corresponding driving sprockets 2.3 are provided on the driving shaft 2.2. The lifting frame 1.1 moves up and down through the corresponding two chains 2.4. That is, in this embodiment, two sets of sprocket-chain lifting mechanisms are adopted to lift the lifting frame synchronously and stably. The sprocket-chain lifting mechanism drives the air storage cylinder lifting frame 1.1 to move within the height range between the transport vehicle 3 and the top installation position. The transport vehicle can adopt an MSV (rubber-tired transport vehicle). When the MSV travels to the position of the air storage cylinder mounting bracket 1, after the air storage cylinder lifting frame 1.1 descends to the horizontal height of the MSV, the air storage cylinder 4 is installed on the air storage cylinder lifting frame 1.1 from the MSV. After the air storage cylinder 4 is fixed to the air storage cylinder lifting frame 1.1, as Figure 3 shown, starting the air storage cylinder lifting device can lift the air storage cylinder 4 in place; the lowering process of the air storage cylinder 4 is opposite. The whole process can not only meet the replacement of the air storage cylinder of the shield machine with insufficient space at the top of the air duct platform, but also meet the central driving of tunnel vehicles.

[0024] As Figure 2 shown, in Embodiment 2, a unilateral lifting device for the air storage cylinder of a shield machine is further optimized on the basis of Embodiment 1. In this embodiment, the fixing member includes a flange plate 1.7 provided on the lifting frame 1.1. A directional pin shaft 1.2 is provided on the flange plate 1.7. The positioning pin shaft 1.2 cooperates with the positioning hole on the air storage cylinder 4 to complete the fixation of the air storage cylinder on the lifting frame. When the lifting frame 1.1 descends to the lowest point, the positioning pin shaft 1.2 can just cooperate with the positioning hole of the air storage cylinder 4 on the transport vehicle 3; realizing the rapid fixation of the air storage cylinder 4 by the positioning pin shaft and ensuring the stability during the lifting process.

[0025] As an implementation manner, a fixed plate 1.8 may be provided on the lifting frame 1.1, and a flange plate 1.7 with adjustable height is provided on the fixed plate 1.8; the adjustable height here can be achieved by the cooperation of bolts and screw holes at different heights, that is, multiple screw holes arranged in columns are provided on the fixed plate, and the flange plate is adjusted in height by the cooperation of bolts with screw holes at different positions. The adjustable height of the flange plate can solve the height matching between the lifting frame and the transport vehicle under different working conditions, and even without the lifting frame being lowered to the lowest point, the pin shaft can be fixed to the air storage cylinder. In this embodiment, several pin shaft holes are provided on the flange plate 1.7, and a directional pin shaft 1.2 is detachably provided in the pin shaft holes; the positioning pin shaft in the pin shaft holes at different positions can be more conveniently and quickly fixed to the positioning holes of the air storage cylinder 4.

[0026] Embodiment 3, a unilateral lifting device for the air storage cylinder of a shield machine. In this embodiment, on the basis of Embodiment 1 or 2, it is further optimized that a guiding mechanism is provided between the lifting frame 1.1 and the air storage cylinder mounting frame 1. The guiding mechanism in this embodiment includes guide rails 1.4 provided on both sides of the air storage cylinder mounting frame 1 and guide wheels 1.3 provided on both sides of the lifting frame 1.1. The guide wheels 1.3 are in rolling cooperation with the corresponding guide rails 1.4, and the lifting frame 1.1 moves up and down along the guide rails 1.4 through the guide wheels 1.3; by using the cooperation of two sets of guide wheels and guide rails, the lifting frame is limited to only move up and down, effectively reducing the sway during the lifting of the lifting frame and ensuring the stable lifting of the lifting frame.

[0027] As Figure 4 shown, Embodiment 4, a unilateral lifting device for the air storage cylinder of a shield machine. In this embodiment, on the basis of Embodiment 1 or 2, it is further optimized that a guiding mechanism is provided between the lifting frame 1.1 and the air storage cylinder mounting frame 1. The guiding mechanism in this embodiment includes guide posts 1.4a symmetrically provided on the air storage cylinder mounting frame 1 and guide sleeves 1.3a provided on both sides of the lifting frame 1.1. The guide sleeves 1.3a are sleeved on the guide posts 1.4a and cooperate with the guide posts 1.4a; in this way, the guide sleeves slide relative to the guide posts, and also play a role in limiting the lifting frame to only move up and down, effectively reducing the sway during the lifting of the lifting frame. A roller 1.6 corresponding to the guide post 1.4a is embedded on the inner wall of the guide sleeve 1.3a, converting the sliding between the guide sleeve 1.3a and the guide post 1.4a into rolling, reducing friction, and ensuring the stability of the lifting of the air storage cylinder lifting frame 1.1 relative to the air storage cylinder mounting frame 1.

[0028] For the air storage cylinder lifting device of the present utility model, by using the sprocket and chain lifting mechanism, the structure of the air storage cylinder mounting frame is optimized, reducing the occupation of the trailer clearance. It can not only meet the replacement of the air storage cylinder of the shield machine with insufficient space at the top of the air duct platform, but also meet the central driving of tunnel vehicles, and the applicable scope includes small-diameter shields, conventional shields and large-diameter shields, having high promotion value.

[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A unilateral lifting device for the air storage cylinder of a shield machine, characterized in that: It includes an air storage cylinder mounting frame (1) arranged on one side of the air duct platform (5). An elevating frame (1.1) is provided on the air storage cylinder mounting frame (1). The elevating frame (1.1) moves up and down along the air storage cylinder mounting frame (1) under the action of a sprocket and chain lifting mechanism. A fixing member for fixing the air storage cylinder (4) is provided on the elevating frame (1.1).

2. The unilateral lifting device for the air storage cylinder of the shield machine according to claim 1, characterized in that: The sprocket and chain lifting mechanism includes a chassis (1.5) arranged at the bottom of the air storage cylinder mounting frame (1). A driving motor (2.1) is provided on the chassis (1.5). The output end of the driving motor (2.1) is connected with a driving shaft (2.2). A driving sprocket (2.3) is provided on the driving shaft (2.2). The driving sprocket (2.3) and a driven sprocket (2.5) arranged at the top of the air storage cylinder mounting frame (1) are arranged corresponding to each other up and down. A chain (2.4) is provided on the driving sprocket (2.3) and the corresponding driven sprocket (2.5). The elevating frame (1.1) is connected to the chain (2.4).

3. The unilateral lifting device for the air storage cylinder of the shield machine according to claim 2, characterized in that: The driven sprockets (2.5) are symmetrically arranged on the left and right sides of the air storage cylinder mounting frame (1). The driving shaft (2.2) is arranged on the chassis (1.5) through a bearing seat, and two driving sprockets (2.3) are correspondingly provided on the driving shaft (2.2). The elevating frame (1.1) moves up and down through two chains (2.4).

4. The unilateral lifting device for the air storage cylinder of the shield machine according to claim 1 or 2, characterized in that: A guiding mechanism is provided between the elevating frame (1.1) and the air storage cylinder mounting frame (1).

5. The unilateral lifting device for the air storage cylinder of the shield machine according to claim 4, wherein: The guiding mechanism includes guide rails (1.4) arranged on both sides of the air storage cylinder mounting frame (1) and guide wheels (1.3) arranged on both sides of the elevating frame (1.1). The guide wheels (1.3) are in rolling fit with the corresponding guide rails (1.4). The elevating frame (1.1) moves up and down along the guide rails (1.4) through the guide wheels (1.3).

6. The unilateral lifting device for the air storage cylinder of the shield machine according to claim 4, characterized in that: The guiding mechanism includes guiding columns (1.4a) symmetrically arranged on the air storage cylinder mounting frame (1) and guiding sleeves (1.3a) arranged on both sides of the elevating frame (1.1). The guiding sleeves (1.3a) are sleeved on the guiding columns (1.4a) and are matched with the guiding columns (1.4a).

7. The unilateral lifting device for the air storage cylinder of the shield machine according to claim 6, characterized in that: Rollers (1.6) corresponding to the guiding columns (1.4a) are embedded on the inner walls of the guiding sleeves (1.3a).

8. The unilateral lifting device for the air storage cylinder of a shield machine according to claim 1 or 5 or 6, characterized in that: The fixing member includes a flange plate (1.7) arranged on the elevating frame (1.1). A positioning pin shaft (1.2) is provided on the flange plate (1.7). The positioning pin shaft (1.2) is matched with a positioning hole on the air storage cylinder (4).

9. The unilateral lifting device for the air storage cylinder of a shield machine according to claim 8, wherein: When the elevating frame (1.1) descends to the lowest point, the positioning pin shaft (1.2) can be matched with the positioning hole of the air storage cylinder (4) on the transport vehicle (3).

10. The unilateral lifting device for the air storage cylinder of a shield machine according to claim 8, characterized in that: A fixing plate (1.8) is provided on the elevating frame (1.1). A flange plate (1.7) with adjustable height is provided on the fixing plate (1.8). Several pin holes are provided on the flange plate (1.7). The positioning pin shaft (1.2) is detachably arranged in the pin holes.

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