Double-hook pipe piece hoisting mechanism for pipe jacking

Abstract

The utility model discloses a double-hook pipe piece hoisting mechanism for pipe jacking. The double-hook pipe piece hoisting mechanism comprises a track, a driving assembly, a winch, a lifting hook and a hoisting assembly, a driving assembly is arranged on the track, a winch is connected below the driving assembly, a lifting hook is connected below the winch, and the lifting hook is connected with a lifting assembly; the hoisting assembly is composed of a fixing transverse plate and a bolt fixing piece, limiting columns are arranged on the two sides of the upper portion of the fixing transverse plate and matched with the lifting hooks in a butt joint mode, and a butt joint frame is connected to the center of the lower portion of the fixing transverse plate through bolts; the butt joint frame is a square frame integrally formed by two sets of side plates and a bottom plate, and a sliding way with an opening in one end is arranged from one side to the other side of the bottom plate. The bolt fixing piece is in threaded connection with the center of the duct piece, the bolt fixing piece is sequentially composed of a limiting part, an inserting part and an embedding part from top to bottom, and the inserting part is in sliding fit with the sliding way. By adopting a double-machine and double-rail structure, the stability, the bearing capacity and the flexibility of the hoisting mechanism are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking machines, and in particular to a double-hook segment hoisting mechanism for pipe jacking. Background Technology

[0002] In the field of pipe jacking construction, segment hoisting operations place extremely high demands on the stability and load-bearing capacity of the equipment. However, traditional segment hoisting mechanisms, especially those using single-motor, single-track designs, have revealed many shortcomings in practical applications.

[0003] The single-motor drive system limits the power output of the hoisting mechanism, making it difficult to meet the strong traction required for hoisting large tunnel segments. Under heavy loads, the single motor is prone to overload; at the same time, the single-track design also restricts the stability and load-bearing capacity of the hoisting mechanism. When bearing large loads, the single track is prone to deformation and displacement, leading to swaying and instability during hoisting. This instability not only increases the difficulty of hoisting but may also damage the tunnel segments. Utility Model Content

[0004] The purpose of this invention is to provide a stable and efficient double-hook segment hoisting mechanism for pipe jacking.

[0005] The purpose of this utility model is achieved as follows: a double-hook segment hoisting mechanism for pipe jacking includes a track, a drive assembly, a winch, a hook, and a hoisting assembly; the drive assembly is provided on the track, the lower part of the drive assembly is connected to the winch, the lower part of the winch is connected to the hook, and the hook is connected to the hoisting assembly; the hoisting assembly consists of a fixed horizontal plate and bolt fasteners, the upper two sides of the fixed horizontal plate are provided with limiting posts, the limiting posts are mated with the hook, and a docking frame is bolted to the center of the lower part of the fixed horizontal plate; the docking frame is an orifice-shaped frame integrally formed by two sets of side plates, a bottom plate, and a top plate, and the bottom plate has a slide rail with one open end from one side to the other; the bolt fasteners are threaded to the center of the segment, and the bolt fasteners consist of a limiting part, an insertion part, and an embedding part from top to bottom, the insertion part slidingly engaging with the slide rail.

[0006] Preferably, the width of the insertion part is smaller than the width of the slide, the width of the limiting part is larger than the width of the slide, and smaller than the distance between the two sets of side plates of the mouth frame.

[0007] Preferably, the limiting part is circular, and a lower limiting groove that cooperates with the limiting part is provided at one end of the inner side of the slide.

[0008] Preferably, both the hook opening and the slide opening are equipped with anti-detachment baffles.

[0009] Preferably, the hook and the winch are connected by a locking ring, and the docking frame and the fixed cross plate are fixedly connected by bolts.

[0010] Preferably, after the docking frame comes into contact with the segment, the limiting part does not come into contact with the top plate of the docking frame.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] 1. This utility model adopts a double hook and related structural design, which can effectively distribute the force and enhance the power output capability compared with the traditional single motor and single track segment hoisting mechanism. It can better meet the demand for strong traction force for large segment hoisting and avoid the problem of single motor being prone to overload under heavy load. At the same time, it reduces the deformation and displacement that the single track design is prone to when bearing large loads, reduces the shaking during hoisting, and makes the hoisting operation more stable.

[0013] 2. Anti-detachment baffles are installed at both the hook opening and the slide opening to effectively prevent the hook from detaching from the limit post and the insertion part from detaching from the slide during the hoisting process. This avoids safety accidents caused by the falling of parts and provides additional safety protection for the hoisting process, ensuring that the hoisting operation is carried out safely and reliably.

[0014] 3. The hook and winch are connected by a locking ring, and the docking frame and the fixed cross plate are fixed by bolts. This connection method ensures the stability of the connection of each component and the flexibility of the hook body. At the same time, the docking frame is connected to the segment by bolt fasteners, which improves the hoisting efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the connection between the bolt fastener and the docking frame of this utility model.

[0017] Figure 3 This is a top view of the slide structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the connection structure between the hook and the winch of this utility model.

[0019] The components include: 1. Track; 2. Drive assembly; 3. Winch; 4. Hook; 5. Lifting assembly; 501. Fixed horizontal plate; 5011. Limiting post; 502. Bolt fastener; 5021. Limiting part; 5022. Insertion part; 5023. Embedding part; 6. Connecting frame; 601. Side plate; 602. Bottom plate; 6021. Slide rail; 60211. Lower limiting groove; 603. Top plate; 7. Anti-detachment baffle; 8. Locking ring. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0021] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component 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. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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.

[0023] like Figure 1-4 As shown, a double-hook segment hoisting mechanism for pipe jacking includes a track 1, a drive assembly 2, a winch 3, a hook 4, and a hoisting assembly 5. The drive assembly 2 is mounted on the track 1, connected to the winch 3 at its lower end, and connected to the hook 4 at its lower end. The hook 4 is connected to the hoisting assembly 5. The hoisting assembly 5 consists of a fixed horizontal plate 501 and bolt fasteners 502. Limiting posts 5011 are located on both sides of the upper part of the fixed horizontal plate 501, and these limiting posts 5011 engage with the hook 4 to fix the horizontal plate. A docking frame 6 is bolted to the center of the lower part of the plate 501; the docking frame 6 is an inverted frame composed of two sets of side plates 601, bottom plate 602, and top plate 603. The bottom plate 602 has a slide 6021 with one end open from one side to the other; the bolt fastener 502 is threaded to the center of the tube segment. The bolt fastener 502 consists of a limiting part 5021, an insertion part 5022, and an embedding part 5023 from top to bottom. The insertion part 5022 slides with the slide 6021.

[0024] like Figure 2 As shown, the width of the insertion part 5022 is less than the width of the slide 6021, the width of the limiting part 5021 is greater than the width of the slide 6021, and less than the distance between the two sets of side plates 601 of the orifice frame, so as to ensure that the bolt fastener can be inserted and connected with the docking frame and can be hoisted.

[0025] like Figure 2-3 As shown, the limiting part 5021 is circular, and the inner end of the slide 6021 is provided with a lower limiting groove 60211 that cooperates with the limiting part 5021. When hoisting, the hoisting component is lifted upward, and the limiting part is embedded in the lower limiting groove, which further improves stability and avoids large shaking.

[0026] like Figure 1 , 3 As shown, anti-detachment baffles 7 are provided at the opening of the hook 4 and the opening of the slide rail 6021. The anti-detachment baffles provide additional safety for the hoisting process; they prevent the hook from detaching from the limit post and the insertion part from detaching from the slide rail during the hoisting process, thus avoiding safety accidents caused by the falling of parts.

[0027] like Figure 4 As shown, the hook 4 is connected to the winch 3 by a locking ring 8, and the docking frame 6 is fixedly connected to the fixed horizontal plate 501 by bolts, ensuring the flexibility of the hook body and facilitating subsequent maintenance and replacement of the hook.

[0028] like Figure 2 As shown, after the docking frame 6 comes into contact with the segment, the limiting part 5021 does not come into contact with the top plate of the docking frame 6, ensuring that after the docking frame and the segment are in sync, the hoisting assembly can be further placed behind the segment with the bottom plate of the docking frame as support, which facilitates subsequent hoisting.

[0029] The working principle of this utility model is explained as follows: The track is connected to the drive assembly, which moves along the track and is precisely positioned according to the hoisting requirements. The winch, as the power source, receives the power transmitted by the drive assembly and converts the power into the lifting motion of the hook through an internal transmission mechanism. Limiting posts are provided on both sides above the fixed horizontal plate, which are connected to the hook to ensure the stability of the hook. The bottom is connected to the docking frame by bolts. The docking frame has a U-shaped structure and is connected to the bolt fasteners.

[0030] During hoisting, the drive assembly is positioned, the winch raises the hook, and the hoisting assembly rises accordingly, achieving stable hoisting of the tunnel segments. Throughout the process, all components work together to ensure efficient and safe hoisting.

[0031] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A double-hook pipe segment hoisting mechanism for pipe jacking, comprising a track, a driving assembly, a hoist, a lifting hook and a hoisting assembly; characterized in that, The track is equipped with a drive assembly, which is connected to a winch below. The winch is connected to a hook below, and the hook is connected to a hoisting assembly. The hoisting assembly consists of a fixed horizontal plate and bolt fasteners. Limiting posts are provided on both sides above the fixed horizontal plate, and the limiting posts are mated with the hook. A docking frame is bolted to the center of the fixed horizontal plate below. The docking frame is an U-shaped frame composed of two sets of side plates, a bottom plate, and a top plate. The bottom plate has a slide rail with one open end on one side. The bolt fasteners are threaded to the center of the segment. The bolt fasteners consist of a limiting part, an insertion part, and an embedding part from top to bottom. The insertion part slides with the slide rail.

2. The double hook pipe piece hoisting mechanism for pipe jacking according to claim 1, characterized in that, The width of the insertion part is less than the width of the slide, and the width of the limiting part is greater than the width of the slide and less than the distance between the two sets of side plates of the mouth frame.

3. The double hook pipe piece hoisting mechanism for pipe jacking according to claim 1, characterized in that, The limiting part is circular, and a lower limiting groove that cooperates with the limiting part is provided at one end of the inner side of the slide.

4. The double hook pipe piece hoisting mechanism for pipe jacking according to claim 1, characterized in that, Both the hook opening and the slide opening are equipped with anti-detachment baffles.

5. The double hook pipe piece hoisting mechanism for pipe jacking according to claim 1, characterized in that, The hook and the winch are connected by a locking ring, and the docking frame and the fixed horizontal plate are fixedly connected by bolts.

6. The double hook pipe piece hoisting mechanism for pipe jacking according to claim 1, characterized in that, After the docking frame comes into contact with the segment, the limiting part does not come into contact with the top plate of the docking frame.

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