A large-diameter pipeline auxiliary hoisting device

Abstract

The utility model discloses a large -calibre pipeline auxiliary hoist device, including hoist, crossbeam and two positioning seat, hoist is located in the crossbeam, is used for with hoisting equipment connection hoist crossbeam, the top of two positioning seat is slid respectively in the crossbeam, and the opposite side of two positioning seat is equipped with the positioning column for inserting the pipeline end respectively, be equipped with the stud bolt and drive motor on the crossbeam, and the both ends of stud bolt are respectively penetrated in two positioning seat, and are respectively screwed with two positioning seat, and drive motor is used for driving stud bolt rotation to drive two positioning seat's positioning column relative close and away. This large -calibre pipeline auxiliary hoist device hoist and carry stability good and improve security.

Description

Technical Field

[0001] This utility model relates to the field of pipeline hoisting machinery technology, specifically to an auxiliary hoisting device for large-diameter pipelines. Background Technology

[0002] Chinese patent document with application number 202310693680.9 discloses a hoisting device for large-diameter pipes, which includes two crossbeams and a hoisting component. Guide sleeves are slidably fitted onto the exterior of both crossbeams, and limit rods are provided at the bottom of both guide sleeves. A hoisting positioning component is provided at the lower end of each limit rod. A size adjustment component is provided at the upper middle position of the crossbeams. The hoisting positioning component includes a first limiting shell located at the lower end of the limit rods. Limit beams are hinged to one side of both ends of the first limiting shell, and one end of each limiting beam is provided with a... The concave seat has a positioning roller rotatably mounted inside. A double-threaded screw is rotatably mounted inside the first limiting shell, and a first servo motor is mounted at the lower end of the first limiting shell. The output shaft of the first servo motor is connected to one end of the double-threaded screw. Matching nut sleeves are screwed onto both sides of the double-threaded screw at its center. An adjusting rod is hinged to one side of each nut sleeve. A strip-shaped guide groove is provided on one side of the first limiting shell. The other ends of the two adjusting rods slide through the guide groove and are respectively hinged to one side of the two limiting beams. A third servo motor drives a gear plate to rotate, causing the positioning roller relative to the lifting positioning component to move closer and clamp the pipe. The clamping force can only be maintained by the drive of the third servo motor. If the third servo motor malfunctions or loses power, the pipe will be suddenly released, leading to a safety accident. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an auxiliary hoisting device for large-diameter pipelines with good hoisting stability and improved safety.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A large-diameter pipe auxiliary hoisting device includes a lifting device, a crossbeam, and two positioning seats. The lifting device is mounted on the crossbeam and is used to connect with hoisting equipment to lift the crossbeam. The tops of the two positioning seats are slidably mounted on the crossbeam. Positioning posts for inserting pipe ends are provided on opposite sides of the two positioning seats. A double-ended screw and a drive motor are provided on the crossbeam. The two ends of the double-ended screw pass through the two positioning seats and are threadedly connected to the two positioning seats respectively. The drive motor is used to drive the double-ended screw to rotate so that the positioning posts of the two positioning seats move closer and further apart.

[0005] As a further improvement to the above technical solution: The crossbeam has mounting brackets at both ends, and the two ends of the double-ended screw are rotatably connected to the mounting brackets at both ends of the crossbeam. The drive motor is mounted on any mounting bracket and is connected to the double-ended screw for transmission.

[0006] The positioning column has an arc-shaped support at its bottom, and the two ends of the arc-shaped support are suspended from the crossbeam by slings.

[0007] The positioning column is equipped with a radial clamping mechanism for pressing against the inner wall of the pipe.

[0008] The radial clamping mechanism includes a radial clamping block and a radial driving member. The radial clamping block is radially slidably mounted on the positioning post, and the radial driving member is mounted on the positioning post and connected to the radial clamping block.

[0009] The radial drive component is a radial motor, and the drive end of the radial drive component is provided with a transmission screw sleeve. The radial abutment block is provided with a transmission screw, and the transmission screw is threadedly connected to the transmission screw sleeve.

[0010] The top of the positioning seat is provided with a sliding sleeve, which slides on the crossbeam and is provided with a locking mechanism for locking the sliding sleeve.

[0011] The locking mechanism includes a locking block and a telescopic drive component. The side wall of the sliding sleeve is provided with a through hole, and the locking block is slidably disposed in the through hole. The telescopic drive component is disposed on the sliding sleeve and connected to the locking block, and is used to drive the locking block to press against the crossbeam.

[0012] The sliding sleeve is provided with a lifting groove, and the lifting strap is wound around the lifting groove.

[0013] The lifting device includes a lifting block and a lifting ring located on top of the lifting block. The two ends of the lifting ring are connected to the two ends of the crossbeam by lifting ropes.

[0014] Compared with the prior art, the advantages of this utility model are: This utility model relates to an auxiliary lifting device for large-diameter pipelines. The process is as follows: the lifting device is connected to the lifting equipment; two positioning seats are fitted onto the two ends of the large-diameter pipeline at relatively far apart positions; the drive motor rotates, driving the double-ended screw to rotate forward, causing the positioning posts of the two positioning seats to move closer together until they are inserted into both ends of the pipeline; the lifting equipment moves, using this auxiliary lifting device to lift the pipeline to the construction position; the drive motor then rotates, driving the double-ended screw to rotate in the opposite direction, causing the positioning posts of the two positioning seats to move further apart until they are pulled out of both ends of the pipeline. This auxiliary lifting device lifts the pipeline by inserting the positioning posts of the two positioning seats into both ends, and the self-locking effect of the threaded connection between the double-ended screw and the positioning seats prevents the positioning posts from being pulled out of the pipeline in case of a drive motor malfunction or power outage, resulting in good lifting stability and improved safety. Attached Figure Description

[0015] Figure 1 This is a first-view three-dimensional structural diagram of the auxiliary hoisting device for large-diameter pipelines of this utility model.

[0016] Figure 2 This is a two-dimensional structural diagram of the auxiliary hoisting device for large-diameter pipelines of this utility model from a second perspective.

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the auxiliary hoisting device for large-diameter pipelines of this utility model.

[0018] Figure 4 yes Figure 3 An enlarged structural diagram of point A.

[0019] Figure 5 This is a schematic diagram of the radial clamping mechanism of the auxiliary hoisting device for large-diameter pipelines of this utility model.

[0020] The labels in the diagram represent: 1. Lifting device; 11. Lifting block; 12. Lifting ring; 13. Lifting ropes at both ends; 2. Crossbeam; 21. Mounting bracket; 3. Positioning seat; 31. Sliding sleeve; 311. Through hole; 312. Lifting groove; 4. Positioning column; 5. Double-ended screw; 6. Drive motor; 7. Arc-shaped support; 71. Lifting strap; 8. Radial clamping mechanism; 81. Radial clamping block; 811. Transmission screw; 82. Radial drive component; 821. Transmission screw sleeve; 9. Locking mechanism; 91. Locking block; 92. Telescopic drive component. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Figures 1 to 5 This invention illustrates an embodiment of the auxiliary lifting device for large-diameter pipes. The device includes a lifting device 1, a crossbeam 2, and two positioning seats 3. The lifting device 1 is mounted on the crossbeam 2 and is used to connect with lifting equipment to lift the crossbeam 2. The tops of the two positioning seats 3 are slidably mounted on the crossbeam 2. Positioning posts 4 for inserting pipe ends are respectively provided on opposite sides of the two positioning seats 3. A double-ended screw 5 and a drive motor 6 are provided on the crossbeam 2. The two ends of the double-ended screw 5 pass through the two positioning seats 3 and are threadedly connected to them respectively. The drive motor 6 drives the double-ended screw 5 to rotate, causing the positioning posts 4 of the two positioning seats 3 to move closer and further apart.

[0026] Operating Procedure: The lifting device 1 is connected to the lifting equipment; two positioning seats 3 are fitted onto both ends of the pipe (large diameter) at relatively far apart positions; the drive motor 6 rotates, driving the double-ended screw 5 to rotate forward, causing the positioning pins 4 of the two positioning seats 3 to move closer together, until the positioning pins 4 of the two positioning seats 3 are respectively inserted into both ends of the pipe; the lifting equipment moves, using this large-diameter pipe auxiliary lifting device to lift the pipe to the construction position; the drive motor 6 rotates, driving the double-ended screw 5 to rotate in the opposite direction, causing the positioning pins 4 of the two positioning seats 3 to move further apart, until the positioning pins 4 of the two positioning seats 3 are respectively pulled out from both ends of the pipe. This large-diameter pipe auxiliary lifting device lifts the pipe by inserting the positioning pins 4 of the two positioning seats 3 into both ends of the pipe, and combined with the self-locking effect of the threaded connection between the double-ended screw 5 and the positioning seats 3, it prevents the positioning pins 4 from being pulled out of the pipe in the event of a fault in the drive motor 6 or a power outage, resulting in good lifting stability and improved safety.

[0027] Furthermore, in this embodiment, mounting brackets 21 are respectively provided at both ends of the crossbeam 2, and the two ends of the double-ended screw 5 are rotatably connected to the mounting brackets 21 at both ends of the crossbeam 2. The drive motor 6 is mounted on any mounting bracket 21 and is connected to the double-ended screw 5 for transmission. Specifically, the sliding direction of the positioning seat 3 is parallel to the axial direction of the double-ended screw 5.

[0028] Furthermore, in this embodiment, the positioning column 4 has an arc-shaped support 7 below it, and both ends of the arc-shaped support 7 are suspended from the crossbeam 2 by slings 71. The arc-shaped support 7 is spaced vertically from the positioning column 4, and when the positioning column 4 is inserted into the end of the pipe, the arc-shaped support 7 supports the pipe from below, further improving the stability and safety during the hoisting process.

[0029] Furthermore, in this embodiment, the positioning post 4 is provided with a radial clamping mechanism 8 for abutting against the inner wall of the pipe. When the positioning post 4 is inserted into the end of the pipe, the radial clamping mechanism 8 clamps against the inner wall of the pipe to prevent the pipe from shaking.

[0030] Furthermore, such as Figure 4 and Figure 5 As shown, in this embodiment, the radial clamping mechanism 8 includes a radial clamping block 81 and a radial drive member 82. The radial clamping block 81 is radially slidably mounted on the positioning post 4, and the radial drive member 82 is mounted on the positioning post 4 and connected to the radial clamping block 81. The positioning post 4 is provided with a radial slide rail, and the radial clamping block 81 is slidably mounted on the radial slide rail and connected to the outer end of the radial drive member 82. The radial drive member 82 drives the radial clamping block 81 to move radially outward along the positioning post 4 to clamp against the inner wall of the pipe.

[0031] Further, in this embodiment, the radial drive member 82 is a radial motor (a motor arranged radially), and the driving end of the radial drive member 82 is provided with a transmission sleeve 821. The radial clamping block 81 is provided with a transmission screw 811, and the transmission screw 811 is threadedly connected to the transmission sleeve 821. Both the transmission screw 811 and the transmission sleeve 821 extend radially along the positioning post 4. Preferably, the positioning post 4 is provided with a mounting cavity, and the radial drive member 82 is disposed in the mounting cavity. In other embodiments, the radial drive member 82 may be an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.

[0032] Furthermore, such as Figures 1 to 4 As shown, in this embodiment, a sliding sleeve 31 is fixedly provided on the top of the positioning base 3. The sliding sleeve 31 is slidably mounted on the crossbeam 2, and a locking mechanism 9 is provided on the sliding sleeve 31 for locking the sliding sleeve 31. When the positioning post 4 is inserted into the end of the pipe, the sliding sleeve 31 is locked on the crossbeam 2 by the locking mechanism 9 to prevent the sliding sleeve 31 from moving relative to the crossbeam 2, thereby further improving stability and safety.

[0033] Further, in this embodiment, the locking mechanism 9 includes a locking block 91 and a telescopic drive member 92. A through hole 311 is provided on the side wall of the sliding sleeve 31, and the locking block 91 slides in the through hole 311. The telescopic drive member 92 is disposed on the sliding sleeve 31 and connected to the locking block 91, used to drive the locking block 91 to press against the crossbeam 2. The extension movement of the telescopic drive member 92 can drive the sliding sleeve 31 to move radially, so that the locking block 91 abuts against the crossbeam 2 to achieve a locking effect; conversely, it can unlock. The locking block 92 can be a rubber block or an existing brake block. Preferably, a fixed frame is provided on the sliding sleeve 31, and the telescopic drive member 92 is disposed on the fixed frame. The telescopic drive member 92 is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder. In other embodiments, the telescopic drive member 92 can also be replaced by a power mechanism composed of an existing bidirectional motor, a telescopic screw, and a threaded sleeve. The telescopic screw and the threaded sleeve are threadedly connected to form a telescopic rod, and the two ends of the telescopic rod are respectively connected to the bidirectional motor and the locking block 91.

[0034] Furthermore, in this embodiment, the sliding sleeve 31 is provided with a lifting groove 312, and the lifting strap 71 is wound around the lifting groove 312. Preferably, the lifting groove 312 is an annular groove arranged around the crossbeam 2.

[0035] Furthermore, in this embodiment, the lifting device 1 includes a lifting block 11 and a lifting ring 12 disposed on the top of the lifting block 11. The two ends of the lifting ring 12 are connected to the two ends of the crossbeam 2 by lifting ropes 13 respectively.

[0036] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A large-diameter pipeline auxiliary hoisting device, comprising a lifting device (1), a crossbeam (2) and two positioning seats (3), wherein the lifting device (1) is mounted on the crossbeam (2) and is used to connect with hoisting equipment to hoist the crossbeam (2), characterized in that: The tops of the two positioning seats (3) are respectively slidably mounted on the crossbeam (2). The opposite sides of the two positioning seats (3) are respectively provided with positioning posts (4) for inserting the pipe ends. The crossbeam (2) is provided with a double-headed screw (5) and a drive motor (6). The two ends of the double-headed screw (5) pass through the two positioning seats (3) respectively and are threadedly connected to the two positioning seats (3). The drive motor (6) is used to drive the double-headed screw (5) to rotate so that the positioning posts (4) of the two positioning seats (3) move closer and further away from each other.

2. The auxiliary hoisting device for large-diameter pipelines according to claim 1, characterized in that: The two ends of the crossbeam (2) are respectively provided with mounting brackets (21), and the two ends of the double-headed screw (5) are respectively rotatably connected to the mounting brackets (21) at both ends of the crossbeam (2). The drive motor (6) is mounted on any mounting bracket (21) and is connected to the double-headed screw (5) for transmission.

3. The auxiliary hoisting device for large-diameter pipelines according to claim 1, characterized in that: The positioning column (4) has an arc-shaped support (7) below it, and the two ends of the arc-shaped support (7) are suspended on the crossbeam (2) by slings (71).

4. The auxiliary hoisting device for large-diameter pipelines according to claim 1, characterized in that: The positioning column (4) is provided with a radial clamping mechanism (8) for clamping against the inner wall of the pipe.

5. The auxiliary hoisting device for large-diameter pipelines according to claim 4, characterized in that: The radial clamping mechanism (8) includes a radial clamping block (81) and a radial drive member (82). The radial clamping block (81) is radially slidably mounted on the positioning post (4), and the radial drive member (82) is mounted on the positioning post (4) and connected to the radial clamping block (81).

6. The auxiliary hoisting device for large-diameter pipelines according to claim 5, characterized in that: The radial drive (82) is a radial motor. The drive end of the radial drive (82) is provided with a transmission sleeve (821). The radial abutment block (81) is provided with a transmission screw (811). The transmission screw (811) is threadedly connected to the transmission sleeve (821).

7. The auxiliary hoisting device for large-diameter pipelines according to claim 3, characterized in that: The top of the positioning seat (3) is provided with a sliding sleeve (31), which slides on the crossbeam (2). The sliding sleeve (31) is provided with a locking mechanism (9) for locking the sliding sleeve (31).

8. The auxiliary hoisting device for large-diameter pipelines according to claim 7, characterized in that: The locking mechanism (9) includes a locking block (91) and a telescopic drive (92). The sliding sleeve (31) has a through hole (311) on its side wall. The locking block (91) is slidably disposed in the through hole (311). The telescopic drive (92) is disposed on the sliding sleeve (31) and connected to the locking block (91) for driving the locking block (91) to press against the crossbeam (2).

9. The auxiliary hoisting device for large-diameter pipelines according to claim 7, characterized in that: The sliding sleeve (31) is provided with a hanging groove (312), and the sling (71) is wound around the hanging groove (312).

10. The auxiliary hoisting device for large-diameter pipelines according to any one of claims 1 to 9, characterized in that: The lifting device (1) includes a lifting block (11) and a lifting ring (12) located on the top of the lifting block (11). The two ends of the lifting ring (12) are connected to the two ends of the crossbeam (2) by lifting ropes (13).

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