Auxiliary machining device for steel pipe groove in limited space

Abstract

The utility model discloses an auxiliary machining device for a steel pipe groove in a limited space. The auxiliary machining device comprises a main shaft, a main frame, an auxiliary frame and a cutter device. The main frame is fixedly arranged on the main shaft in a sleeving manner, and the auxiliary frame is detachably arranged on the main shaft in a sleeving manner; the main frame is arranged in the steel pipe, a plurality of adjusting pieces are evenly distributed at the end of the main frame in the circumferential direction of the main frame, and the positions, relative to the main frame, of the adjusting pieces can be adjusted so that the adjusting pieces can abut against or leave the inner wall of the steel pipe. The auxiliary frame is arranged outside the steel pipe, a plurality of clamping plates parallel to the main shaft are evenly distributed at the end of the auxiliary frame in the circumferential direction of the auxiliary frame, and when the clamping plates are attached to the peripheral face of the steel pipe, the central axis of the main shaft coincides with the central axis of the steel pipe. The cutting knife device is rotationally connected with the main shaft and used for conducting steel pipe groove construction. The steel pipe groove machining device solves the problem of steel pipe groove machining in a limited space, the positioning time of the groove machining device is shortened, and meanwhile the positioning precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe bevel processing. More specifically, the utility model relates to an auxiliary processing device for steel pipe bevels in a limited space. Background Technique

[0002] The foundation of an electric tower in a certain overseas project is a steel pipe pile foundation with a diameter of 1100 mm and a thickness of 22 mm. The steel pipe piles are sunk to about 60 - 70 m below the water level to meet the requirements of pile foundation bearing capacity. Limited by the local steel pipe pile processing level, the processing factory can only process steel pipes of 55 m for construction. During the sinking process of the steel pipe piles, they must be lengthened before the next step can be carried out. During the lengthening process, due to the working characteristics and requirements of various bevel equipment, the existing equipment cannot meet the on-site construction needs.

[0003] The existing pipe beveling machines on the market are mainly divided into internal expansion type and external clamping type. Due to the large diameter of the steel pipe, it is difficult to center the internal expansion type beveling machine, and there is no mature product on the market that can meet the construction requirements for the time being. For the external clamping type, due to the limited on-site space (the steel pipes are stacked on top of each other, and the gap is only about 20 cm), there is not enough space for the external climbing equipment to use. On-site, only the existing gas cutting equipment can be used to cut and grind the steel pipe piles. However, due to the limited on-site operation area, the manual operation efficiency is low, the technical requirements for the cutting personnel are high, and the operation intensity is large. The number of bevels processed on-site cannot meet the actual on-site needs, and the bevel quality is uneven due to different personnel. According to the actual on-site situation, a gas cutting auxiliary tool is specially designed to help on-site operators improve the operation efficiency and meet the on-site construction requirements. Summary of the Utility Model

[0004] An object of the utility model is to solve at least the above problems and provide at least the advantages described later. To achieve these objects and other advantages according to the utility model, an auxiliary processing device for steel pipe bevels in a limited space is provided, including: a main shaft, a main frame, an auxiliary frame, and a cutter device; the main frame is fixedly sleeved on the main shaft, and the auxiliary frame is detachably sleeved on the main shaft; the main frame is arranged inside the steel pipe, and a plurality of adjusting members are evenly distributed along the circumference of its end, and the position of the adjusting member relative to the main frame is adjustable to abut against or leave the inner wall of the steel pipe; the auxiliary frame is arranged outside the steel pipe, and a plurality of clamping plates parallel to the main shaft are evenly distributed along the circumference of its end. When each clamping plate fits against the outer peripheral surface of the steel pipe, the central axis of the main shaft coincides with the central axis of the steel pipe; the cutter device is rotatably connected to the main shaft for steel pipe bevel construction.

[0005] Preferably, it further includes a plurality of tie rods which are arranged parallel to the main shaft and symmetrically arranged about the center of the main shaft; one end of each tie rod is detachably connected to the auxiliary frame, and the other end is detachably connected to the main frame.

[0006] Preferably, the main frame includes a main sleeve fixedly sleeved on the main shaft, and a plurality of main positioning rods are annularly distributed about its center on the main sleeve; the adjusting members are correspondingly arranged at the ends of the positioning rods.

[0007] Preferably, the adjusting member includes a cross plate and an adjusting screw rod; the cross plate is arranged parallel to the main shaft and fixedly connected to the end of the main positioning rod; a threaded through hole matching with the adjusting screw rod is formed on the cross plate, and the adjusting screw rod is threadedly connected to the cross plate through the threaded through hole.

[0008] Preferably, the auxiliary frame includes an auxiliary sleeve detachably sleeved on the main shaft, and a plurality of auxiliary positioning rods are annularly distributed about its center on the auxiliary sleeve; the auxiliary positioning rods are arranged in one-to-one correspondence with the main positioning rods; the clamping plates are correspondingly arranged at the ends of the auxiliary positioning rods.

[0009] Preferably, the cutter device includes an adjusting rod, a fixing rod and a cutter; the adjusting rod is rotatably connected to the main shaft, one end of the fixing rod is movably connected to the adjusting rod, and the other end is fixedly connected to the cutter.

[0010] The utility model has at least the following beneficial effects:

[0011] 1. For the steel pipe bevel auxiliary processing device in a limited space provided by the utility model, the auxiliary frame is used to position and fix the main frame, and then the main frame is fixed to the steel pipe through each adjusting member. Finally, after the auxiliary frame is disassembled, the cutter device is installed for bevel construction, effectively solving the problem of steel pipe bevel processing in a limited space, reducing the positioning time of the bevel processing device, i.e., the cutter device, and improving the positioning accuracy at the same time.

[0012] 2. For the steel pipe bevel auxiliary processing device in a limited space provided by the utility model, the adjusting rod and the fixing rod can slightly adjust the position of the cutter during use. When the offset of the cutter is too large during use, the adjusting rod and the fixing rod are used to slightly adjust the cutter to ensure the construction accuracy.

[0013] Other advantages, objectives and features of the utility model will be partially reflected by the following description, and partially will be understood by those skilled in the art through the research and practice of the utility model. Description of the Drawings

[0014] Figure 1Schematic diagram of the vertical cross-section structure of the steel pipe bevel auxiliary processing device within a limited space of the present utility model when the auxiliary frame is installed;

[0015] Figure 2 Schematic diagram of the vertical cross-section structure of the steel pipe bevel auxiliary processing device within a limited space of the present utility model when the cutting tool device is installed;

[0016] Figure 3 Schematic diagram of the side structure of the main frame of the present utility model;

[0017] Figure 4 Schematic diagram of the side structure of the auxiliary frame of the present utility model; Detailed implementation manners

[0018] The following further elaborates on the present utility model in detail with reference to the accompanying drawings, so that those skilled in the art can implement it according to the description in the specification.

[0019] It should be noted that, unless otherwise specified, the experimental methods described in the following implementation schemes are all conventional methods, and the reagents and materials, unless otherwise specified, can all be obtained from commercial channels; in the description of the present utility model, the orientation or positional relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0020] As Figures 1 to 4 shown, the present utility model provides a steel pipe bevel auxiliary processing device within a limited space, including: a main shaft 3, a main frame 2, an auxiliary frame 5, and a cutting tool device 8; the main frame 2 is fixedly sleeved on the main shaft 3, and the auxiliary frame 5 is detachably sleeved on the main shaft 3; the main frame 2 is arranged inside the steel pipe 1, and a plurality of adjusting members 4 are evenly distributed along the circumferential direction of the end part. The position of the adjusting member 4 relative to the main frame 2 is adjustable to abut against or leave the inner wall of the steel pipe 1; the auxiliary frame 5 is arranged outside the steel pipe 1, and a plurality of clamping plates 6 parallel to the main shaft 3 are evenly distributed along the circumferential direction of the end part. When each clamping plate 6 is in contact with the outer peripheral surface of the steel pipe 1, the central axis of the main shaft 2 coincides with the central axis of the steel pipe 1; the cutting tool device 8 is rotatably connected to the main shaft 3 for steel pipe bevel construction.

[0021] In this technical solution, first, the main frame 2 is fixedly sleeved on the main shaft 3 and then placed inside the steel pipe 1. Next, the auxiliary frame 5 is sleeved on the main shaft 3, and each clamping plate 6 is closely attached to the outer wall of the steel pipe 1, making the auxiliary frame 5 perpendicular to the steel pipe 1. At this time, the central axis of the main shaft 2 coincides with the central axis of the steel pipe 1. Then, each adjusting member 4 on each main frame 2 is adjusted to abut against the inner wall of the steel pipe 1, thereby fixing the main frame 2. Then, the auxiliary frame 5 is removed, and the cutting tool device 8 is installed. Through the rotational connection between the cutting tool device 8 and the main shaft 3, the cutting tool device 8 is rotated to complete the beveling construction of the steel pipe 1. In the above process, the auxiliary frame 5 is used to position and fix the main frame 2, and then each adjusting member 4 is used to fix the main frame 2 to the steel pipe 1. Finally, after removing the auxiliary frame 5, the cutting tool device 8 is installed for beveling construction, effectively solving the problem of beveling processing of steel pipes in a limited space, reducing the positioning time of the beveling processing device, i.e., the cutting tool device 8, and improving the positioning accuracy.

[0022] In another technical solution, the auxiliary processing device for beveling steel pipes in a limited space further includes a plurality of tie rods 7. The tie rods 7 are arranged parallel to the main shaft 3 and are symmetrically arranged about the center of the main shaft 3. One end of each tie rod 7 is detachably connected to the auxiliary frame 5, and the other end is detachably connected to the main frame 2. After each clamping plate 6 on the auxiliary frame 5 is closely attached to the outer wall of the steel pipe 1, the tie rods are respectively connected to the auxiliary frame 5 and the main frame 2 to further fix the main frame 2, and then each adjusting member 4 is adjusted. Then, each tie rod 7 and the auxiliary frame 5 are disassembled together. Preferably, the main frame 2 and the auxiliary frame 5 can be correspondingly provided with through holes for the tie rods 7 to pass through, and both ends of the tie rods 7 are fixed by fasteners.

[0023] In another technical solution, the main frame 2 includes a main sleeve 21 fixedly sleeved on the main shaft. A plurality of main positioning rods 22 are annularly distributed about the center of the main sleeve 21. Each end of each positioning rod 22 is correspondingly provided with the adjusting member 4. As Figure 3 shown, in this embodiment, the main positioning rods 22 are provided with 4, which are arranged in a cross shape on the main sleeve 21. In actual use, the number of the main positioning rods 22 can be flexibly selected according to needs.

[0024] The length of the main positioning rod 22

[0025] Further, the adjusting member 4 includes a cross plate 41 and an adjusting screw rod 42; the cross plate 41 is arranged parallel to the main shaft 3 and fixedly connected to the end of the main positioning rod 22; a threaded through hole matching with the adjusting screw rod 42 is formed in the cross plate 41, and the adjusting screw rod 42 is threadedly connected to the cross plate 41 through the threaded through hole. Rotate the adjusting screw rod 42 to make it extend towards the inner wall of the steel pipe 1 until it abuts, and the fixation of the main frame 2 is completed.

[0026] In another technical solution, the auxiliary frame 5 includes an auxiliary sleeve 51 detachably sleeved on the main shaft 3, and a plurality of auxiliary positioning rods 52 are annularly distributed about the center of the auxiliary sleeve 51, and the auxiliary positioning rods 52 are arranged in one-to-one correspondence with the main positioning rods 22; clamping plates 6 are correspondingly arranged at the ends of the auxiliary positioning rods 52. As Figure 4 shown, in this embodiment, the auxiliary positioning rods 52 are arranged in 4 and are arranged in a cross shape on the auxiliary sleeve 51. In actual use, the number of the auxiliary positioning rods 52 can be flexibly selected according to needs. The auxiliary positioning rods 52 are arranged in one-to-one correspondence with the main positioning rods 22 to facilitate the installation of the pull rod 7. The length of the auxiliary positioning rod 52 needs to satisfy that the clamping plate 6 just fits against the outer wall of the steel pipe 1, that is, the auxiliary frame 5 is clamped at the port of the steel pipe 1 through a plurality of the clamping plates 6. The auxiliary sleeve 51 can be fixed by circumferentially and intermittently forming a plurality of threaded holes thereon and then correspondingly arranging bolts, and rotating the bolts to tighten the main shaft 3.

[0027] In another technical solution, the cutter device 8 includes an adjusting rod 81, a fixing rod 82 and a cutter 83; the adjusting rod 81 is rotatably connected to the main shaft 3, one end of the fixing rod 82 is movably connected to the adjusting rod 81, and the other end is fixedly connected to the cutter 83. Specifically, the adjusting rod 81 is arranged perpendicular to the central axis of the steel pipe 1, and its rotational connection with the main shaft 3 can be realized through a sleeve, the sleeve is movably sleeved on the main shaft 3, and the adjusting rod 81 is fixedly connected to the sleeve. The fixing rod 82 can be connected to the adjusting rod 81 through a structure such as a hoop to facilitate the adjustment of the position of the fixing rod 82, and further adjust the position of the cutter 83 so that the cutter head is aligned with the port of the steel pipe 1.

[0028] Although the embodiments of the present utility model have been disclosed above, it is not limited to only the applications listed in the description and embodiments. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present utility model is not limited to the specific details and the illustrated examples here.

Claims

1. A steel pipe groove auxiliary processing device in a limited space, characterized in that: include: Spindle, main frame, auxiliary frame and cutting knife device; The main frame is fixedly mounted on the main shaft, and the auxiliary frame is detachably mounted on the main shaft; the main frame is arranged inside the steel pipe, and a plurality of adjusting members are evenly distributed along its circumference at the end, and the position of the adjusting members relative to the main frame is adjustable to abut against or leave the inner wall of the steel pipe; the auxiliary frame is arranged outside the steel pipe, and a plurality of clamping plates parallel to the main shaft are evenly distributed along its circumference at the end, and when each of the clamping plates is in contact with the outer circumference of the steel pipe, the central axis of the main shaft coincides with the central axis of the steel pipe; the cutting knife device is rotatably connected to the main shaft for steel pipe groove construction.

2. The device for auxiliary processing of steel pipe groove in limited space according to claim 1, characterized in that: It also includes a plurality of pull rods, which are arranged parallel to the main axis and symmetrically about the center of the main axis; one end of the pull rod is detachably connected to the auxiliary frame, and the other end is detachably connected to the main frame.

3. The device for auxiliary processing of steel pipe groove in limited space as claimed in claim 1, characterized in that: The main frame comprises a main sleeve fixedly sleeved on the main shaft, and a plurality of main positioning rods are distributed in a ring shape about the center of the main sleeve; the end of each positioning rod is correspondingly provided with the adjusting member.

4. The device for auxiliary processing of steel pipe groove in limited space as claimed in claim 3, characterized in that: The adjusting member includes a transverse plate and an adjusting screw rod; the transverse plate is arranged parallel to the main shaft and is fixedly connected to the end of the main positioning rod; a threaded through hole matching the adjusting screw rod is opened on the transverse plate, and the adjusting screw rod is threadedly connected to the transverse plate through the threaded through hole.

5. The device for auxiliary processing of steel pipe groove in limited space as claimed in claim 3, characterized in that: The auxiliary frame includes an auxiliary sleeve detachably mounted on the main shaft, and a plurality of auxiliary positioning rods are distributed in a ring shape about the center of the auxiliary sleeve. The auxiliary positioning rods are arranged in a one-to-one correspondence with the main positioning rods; the end of each auxiliary positioning rod is correspondingly provided with the clamping plate.

6. The device for auxiliary processing of steel pipe groove in limited space as claimed in claim 1, characterized in that: The cutting knife device comprises an adjusting rod, a fixing rod and a cutting knife; the adjusting rod is rotatably connected to the main shaft, one end of the fixing rod is movably connected to the adjusting rod, and the other end is fixedly connected to the cutting knife.

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