Butt joint device for assisting boiler pipeline installation

Abstract

The utility model discloses a butt joint device assisting in boiler pipeline installation, relates to the technical field of boiler pipeline installation and butt joint, and aims to solve the problem that when a boiler pipeline is lifted and deflected to cope with butt joint operation at different angle positions, the pipeline installation stability is reduced due to sliding. A motor in a transmission case in the placing table rotates to drive a gear shaft I to rotate, and the gear shaft I rotates to drive a gear shaft II at the bottom of a limiting groove plate to rotate, so that the height of a buffer block is adjusted, and the height of an arc-shaped lifting plate at the top of the placing table is controlled; the gears at the ends of the first gear shaft and the second gear shaft are used for synchronously controlling rotation of the first limiting arc rod and the second limiting arc rod in the arc sleeve, the first limiting arc rod and the second limiting arc rod are unfolded at the top of the containing table, the two sides of the pipeline on the containing table are limited, the arc-shaped lifting plate is matched for jacking, locking of the boiler pipeline on the containing table is completed, and sliding of the pipeline is avoided.

Description

Technical Field

[0001] This utility model relates to the field of boiler pipe installation and docking technology, specifically a docking device that assists in boiler pipe installation. Background Technology

[0002] The four common boiler pipes are the main feedwater pipe, the main steam pipe, the reheat hot section steam pipe, and the reheat cold section steam pipe. These are the pipes within the scope of the boiler as defined in the National Special Equipment Safety Technical Specification TSG G0001-2012 "Boiler Safety Technical Supervision Regulations", and are parts of steam boilers.

[0003] For the installation of boiler pipes, which involves connecting pipes to pipes, pipes to valves, or pipes to related accessories, spot welding and flange fixing are commonly used. Supports and hangers are also installed to support or suspend various designated parts of the pipes. The entire weight of the pipes is borne by the corresponding beams, columns, or pipe piers, while ensuring the expansion and stability of the pipes during operation. In the case of boiler pipe installation in confined spaces, considering the limited range of motion of hoisting machinery, quick installation is usually not possible. It is necessary to disassemble the relevant equipment first. In addition, considering the installation angle of the boiler pipes, the docking conditions of horizontal lifting equipment are limited, requiring additional pipe adjustment. This can also easily cause pipe slippage during docking, affecting the stable installation of the boiler pipes.

[0004] Therefore, we propose a docking device to assist in the installation of boiler pipes. Utility Model Content

[0005] The purpose of this invention is to provide a docking device to assist in the installation of boiler pipes, thereby solving the problem of reduced pipe installation stability caused by slippage when the boiler pipes are lifted and deflected to handle docking operations at different angles.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A docking device for assisting boiler pipe installation includes a movable base plate, a locking frame symmetrically fixed to the top of the movable base plate by bolts, a sliding sleeve slidably connected to one side of the top of the locking frame, and lifting arms movably connected to both sides of the sliding sleeve by bearings.

[0008] One end of the lifting arm is movably connected to a placement platform. A curved sleeve is symmetrically fixed inside the placement platform. A limiting curved rod one and a limiting curved rod two are slidably connected inside the curved sleeve. The limiting curved rod one and the limiting curved rod two are placed alternately. Limiting groove plates are fixed to the inner walls of both sides of the placement platform by spot welding. A buffer block is slidably connected inside the limiting groove plate. An arc-shaped lifting plate is fixed to the top of the buffer block by bolts. One side of the arc-shaped lifting plate passes through the top of the placement platform and is slidably connected to the placement platform.

[0009] Furthermore, a rocker wheel is movably connected to one side of the lock frame, and a threaded rod is movably connected to the inner wall of one side of the lock frame. A gear on the central shaft of the rocker wheel meshes with a gear sleeved on the threaded rod, and one end of the threaded rod passes through the lock frame and is threadedly connected to the sliding sleeve.

[0010] Furthermore, auxiliary support rods are symmetrically rotatably connected to the top two sides of the movable base plate, and one end of the auxiliary support rods is movably connected to the side wall of the lifting arm.

[0011] Furthermore, a transmission box is fixed to the bottom inner wall of the placement platform by bolts. A gear shaft one is movably connected to both sides of the transmission box. A gear shaft two is movably connected to the bottom of the limiting groove plate. The gear on the gear shaft two meshes with a gear on the gear shaft one. One end of the gear shaft two passes through the limiting groove plate and is threadedly connected to the buffer block.

[0012] Furthermore, the bottom inner wall of the placement platform is symmetrically and movably connected with toothed sleeves. A gear is fitted on one side of the toothed sleeve and meshes with a gear on the toothed shaft. A gear is fitted on the other side of the toothed sleeve and meshes with the bottom of the limiting arc rod. A gear is fitted and fixed on one end of the toothed shaft. A gear is fitted on the side of the toothed shaft and meshes with the bottom of the limiting arc rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, considering the confined installation environment and the installation angle of the boiler pipes, it is not suitable to use a crane for pipe transportation. The boiler pipes can be moved by first placing them on the placement platform and then moving them using the movable base plate. The rocker wheel on the locking frame can be manually rotated to drive the threaded rod to rotate, thereby adjusting the rotation angle of the support arm on the sliding sleeve and raising the height of the placement platform. At the same time, the height of one side of the placement platform can be adjusted by independently controlling the rocker wheel on one side, changing the orientation of the boiler pipes on the entire placement platform. This is suitable for boiler pipe installation at different angles.

[0015] 2. In this utility model, the rotation of the motor in the transmission box inside the placement platform drives the rotation of gear shaft one. The rotation of gear shaft one drives the rotation of gear shaft two at the bottom of the limiting groove plate, thereby adjusting the height of the buffer block and controlling the height of the arc-shaped lifting plate at the top of the placement platform. At the same time, the rotation of gear shaft one drives the rotation of the gear sleeve through gear shaft two. The rotation of limiting arc rod one and limiting arc rod two inside the arc sleeve is controlled synchronously by the gears at the ends of gear shaft one and gear shaft two. The limiting arc rod one and limiting arc rod two unfold at the top of the placement platform to limit the two sides of the pipe on the placement platform. With the lifting of the arc-shaped lifting plate, the boiler pipe is locked on the placement platform, achieving stable docking for boiler pipe installation at an angle. Attached Figure Description

[0016] Figure 1A schematic diagram of the main structure of the docking device for auxiliary boiler pipeline installation according to this utility model;

[0017] Figure 2 A schematic diagram of the main cross-sectional structure of the docking device for auxiliary boiler pipe installation according to this utility model;

[0018] Figure 3 This is a schematic diagram showing the unfolded arrangement of the upper limit arc rod one and the lower limit arc rod two on the placement platform of this utility model;

[0019] Figure 4 This is a schematic diagram showing the meshing connection between the gear on the inner rocker wheel and the gear on the threaded rod of the lock frame of this utility model;

[0020] Figure 5 This is a schematic diagram showing the buffer block and limiting arc rod one and limiting arc rod two of this utility model pressing against the pipeline.

[0021] In the diagram: 1. Movable base plate; 2. Locking frame; 3. Sliding sleeve; 4. Lifting arm; 5. Placement platform; 6. Transmission box; 7. Gear shaft one; 8. Limiting groove plate; 9. Gear shaft two; 10. Buffer block; 11. Arc-shaped lifting plate; 12. Gear sleeve; 13. Arc sleeve; 14. Limiting arc rod one; 15. Limiting arc rod two; 16. Rocker wheel; 17. Threaded rod; 18. Auxiliary support rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] Example 1: Before installing boiler piping, construction personnel should check the actual site conditions against the drawings for any obstacles or unreasonable aspects. If necessary, modifications should be made in conjunction with the designer to determine the actual piping route. The actual position, elevation, and bending angle of each bend, valve, etc., should be accurately specified. Boiler piping typically uses welding and flange connections. For transporting and securing boiler piping in confined areas, where hoisting mechanisms cannot reach, therefore... Figure 1 As shown, a small handling mechanism is required, which can also be used to lift and adjust the angle of the pipes.

[0025] The main body of the docking device for auxiliary boiler pipe installation is a movable base plate 1 and a placement platform 5. The rollers on the movable base plate 1 facilitate the movement of heavy boiler pipes. A locking frame 2 is symmetrically arranged on the top of the movable base plate 1. A sliding sleeve 3 is slidably connected in a slide rail on one side of the top of the locking frame 2. The sliding sleeve 3 is fitted on the threaded rod 17 on the locking frame 2. The rotation of the threaded rod 17 is used to push the sliding sleeve 3 to move left and right on the locking frame 2.

[0026] Considering the subsequent lifting of the boiler pipes stored on the placement platform 5, lifting arms 4 are movably connected to both sides of the sliding sleeve 3 via bearings. When the threaded rod 17 on one side of the locking frame 2 rotates and pushes the sliding sleeve 3 to slide, the angle between the lifting arm 4 and the locking frame 2 increases and pushes the entire placement platform 5 upward, completing the adjustment of the height of the placement platform 5 and improving the overall stability of the entire placement platform 5 when it is lifted. Auxiliary support rods 18 are rotatably connected to the top two edges of the movable base plate 1. One end of the auxiliary support rod 18 is movably connected to the side of the lifting arm 4. The auxiliary support rod 18, the lifting arm 4 and the entire movable base plate 1 form a triangle to improve the stability of the entire docking device in lifting the boiler pipes.

[0027] Considering the high flexibility of manual adjustment, such as Figure 4 As shown, a rocker wheel 16 is movably connected to the outer side of the lock frame 2. A gear is sleeved on the central shaft of the rocker wheel 16 and meshes with a gear sleeved on the threaded rod 17. By manually rotating the rocker wheel 16, the height of the single-sided placement platform 5 can be adjusted. If the placement platform 5 is to be raised horizontally, the operator needs to rotate the rocker wheel 16 on both sides of the lock frame 2 simultaneously with both hands to raise the entire placement platform 5 synchronously on both sides.

[0028] Since the height of both sides of the placement platform 5 can be freely adjusted, the offset angle of the placement platform 5 can be adjusted for boiler pipes with installation angle requirements. Compared with the docking device that can only be raised horizontally, the installation of boiler pipes is more convenient and stable.

[0029] Example 2: To prevent the boiler pipes stored on the placement platform 5 from sliding during the lifting process, the boiler pipes stored on the placement platform 5 need to be locked and limited, such as... Figure 2 As shown, symmetrical arc sleeves 13 are arranged on both sides of the top of the placement platform 5. Limiting arc rod 14 and limiting arc rod 2 15 are alternately slidably connected inside the arc sleeves 13. Simultaneously, an arc-shaped lifting plate 11 is also symmetrically slidably connected to the top of the placement platform 5. Figure 5 It can be seen that by unscrewing the two limiting arc rods 14 and 15 on both sides, and simultaneously using the rising arc lifting plate 11 to push the entire boiler pipe upward, the entire boiler pipe is locked and limited on the placement platform 5, thereby avoiding the pipe sliding on the placement platform 5 when the boiler pipe is installed with a deflection angle, which would increase the risk of boiler pipe installation.

[0030] Considering the driving of the limiting arc rod 14 and the limiting arc rod 15, a transmission box 6 is fixed on the inner wall of the bottom of the placement platform 5. A gear shaft 7 is fixed on the output end of the motor installed in the transmission box 6. Similarly, a limiting groove plate 8 is fixed on the inner wall of both sides of the placement platform 5. A buffer block 10 is slidably connected to the inner wall of the limiting groove plate 8. A gear shaft 9 is movably connected to the bottom of the limiting groove plate 8. One end of the gear shaft 9 passes through the limiting groove plate 8 and is threadedly connected to the buffer block 10. By rotating the gear shaft 7, the gear shaft 9 is driven to rotate, thereby realizing the up and down sliding of the buffer block 10 on the limiting groove plate 8, which is to realize the control of the arc-shaped lifting plate 11 at the top of the placement platform 5.

[0031] Similarly, it is also necessary to control the limiting arc rod 14 and the limiting arc rod 15. One end of the gear shaft 7 passes through the movable gear sleeve 12 inside the placement platform 5 and is fitted with a fixed gear. The rotation of the gear shaft 7 can also drive the rotation of the limiting arc rod 14, such as... Figure 3 As shown, for the rotation control of the limiting arc rod 15, the rotation of the gear sleeve 12 is completed by the rotation of the gear shaft 9. The rotation of the gear sleeve 12 drives the limiting arc rod 15 to rotate, thus realizing the synchronous rotation and unfolding of the limiting arc rod 14 and the limiting arc rod 15, completing the contact between the outer walls on both sides of the boiler pipe, and cooperating with the arc lifting plate 11 to lift the boiler pipe, thus completing the locking of the boiler pipe on the placement platform 5.

[0032] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0033] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A docking device for assisting in the installation of boiler pipes, comprising a movable base plate (1), characterized in that: The top of the movable base plate (1) is symmetrically fixed with a locking frame (2) by bolts. A sliding sleeve (3) is slidably connected to one side of the top of the locking frame (2). Lifting arms (4) are movably connected to both sides of the sliding sleeve (3) by bearings. One end of the lifting arm (4) is movably connected to a placement platform (5). An arc sleeve (13) is symmetrically fixed inside the placement platform (5). A limiting arc rod one (14) and a limiting arc rod two (15) are slidably connected inside the arc sleeve (13). The limiting arc rod one (14) and the limiting arc rod two (15) are placed alternately. The inner walls on both sides of the placement platform (5) are fixed with limiting groove plates (8) by spot welding. A buffer block (10) is slidably connected inside the limiting groove plate (8). An arc-shaped lifting plate (11) is fixed to the top of the buffer block (10) by bolts. One side of the arc-shaped lifting plate (11) passes through the top of the placement platform (5) and is slidably connected to the placement platform (5).

2. The docking device for auxiliary boiler pipe installation according to claim 1, characterized in that: A rocker wheel (16) is movably connected to one side of the lock frame (2), and a threaded rod (17) is movably connected to the inner wall of one side of the lock frame (2). A gear on the central shaft of the rocker wheel (16) meshes with a gear sleeved on the threaded rod (17). One end of the threaded rod (17) passes through the lock frame (2) and is threadedly connected to the sliding sleeve (3).

3. The docking device for auxiliary boiler pipe installation according to claim 2, characterized in that: The top two sides of the movable base plate (1) are symmetrically connected to auxiliary support rods (18), and one end of the auxiliary support rods (18) is movably connected to the side wall of the lifting arm (4).

4. The docking device for auxiliary boiler pipeline installation according to claim 3, characterized in that: The bottom inner wall of the placement platform (5) is fixed with a transmission box (6) by bolts. The two sides of the transmission box (6) are movably connected with a gear shaft (7). The bottom of the limiting groove plate (8) is movably connected with a gear shaft (9), and the gear on the gear shaft (9) meshes with a gear on the gear shaft. One end of the gear shaft (9) passes through the limiting groove plate (8) and is threadedly connected to the buffer block (10).

5. The docking device for auxiliary boiler pipe installation according to claim 4, characterized in that: The bottom inner wall of the placement platform (5) is symmetrically and movably connected with a toothed sleeve (12). A gear is fitted on one side of the toothed sleeve (12) and meshes with a gear on the toothed shaft. A gear is fitted on the other side of the toothed sleeve (12) and meshes with the bottom of the limiting arc rod (15). One end of the toothed shaft (7) is fitted with a toothed sleeve (12) and a gear is fitted and fixed thereon. The gear on the side of the toothed sleeve (12) of the toothed shaft (7) meshes with the bottom of the limiting arc rod (14).

Images