Diameter-adjustable polishing device for inner cavity of spiral welded pipe

Abstract

The utility model relates to the technical field of spiral welded pipe polishing, in particular to a spiral welded pipe inner cavity diameter-adjustable polishing device which comprises a polishing supporting frame and a polishing workbench which are sequentially arranged, a transmission guide pipe is arranged at the top end of the polishing supporting frame, the outer wall of the polishing supporting frame is connected with a polishing device body, and the polishing device body comprises an outer cover cylinder. Four main supports which are distributed in a circular array mode are rotatably connected to the inner wall of the outer cover cylinder, auxiliary supports are connected to the outer walls of the main supports, two long-strip-shaped transverse holes which are distributed in a mirror image mode are formed in the outer walls of the auxiliary supports, original through holes are changed into the long-strip-shaped transverse holes through the auxiliary supports, the long-strip-shaped transverse holes are provided with scales, and therefore the size of the diameter can be clearly seen. The diameter of the device is adjusted by adjusting the position of the bolt in the transverse hole, so that the requirement for the corresponding inner diameter of the polished spiral welded pipe is met, the polishing device is suitable for polishing the spiral welded pipes of various specifications, and the applicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spiral weld pipe processing technical field especially relates to a spiral weld pipe inner chamber adjustable diameter polishing device. BACKGROUND

[0002] In the production and manufacture of spiral weld pipes, the surface of aluminum strip has an oxide layer and shallow marks, and the influence of forming rollers during production causes certain marks on the inner surface of the spiral weld pipe, which not only affects the quality of the inner surface of the weld pipe, but also causes discharge during later assembly, resulting in serious safety hazards.

[0003] The process of the traditional polishing device is as follows: the spiral weld pipe is fixed on the polishing workbench, the motor in the polishing device enters the inner cavity of the spiral weld pipe through the pushing force of the transmission guide pipe, thereby polishing the weld pipe, wherein the main support in the polishing device is connected and fixed with the shaft of the motor through hole shaft cooperation and bolts, the motor is fixed on the special base, the special base is placed in the inside of the outer cover cylinder, and the special base is provided with traveling wheels, the polishing fabric is fastened on the auxiliary support of the polishing device through bolts, and the motor of the polishing device is started after the switch on the control panel is turned on to connect the power supply, so as to drive the polishing main and auxiliary supports to rotate circularly, at the same time, the power supply of the variable frequency motor of the driving mechanism of the polishing equipment is turned on, the driving mechanism generates axial displacement, drives the polishing device to enter the pipeline through the transmission guide pipe, and realizes the axial displacement and circumferential rotation of the polishing device in the inner cavity of the pipeline through the axial and circumferential displacement, and realizes the overall polishing of the inner surface of the pipeline through the friction between the polishing fabric and the inner surface of the pipeline.

[0004] The main support and the auxiliary support of the traditional polishing device are fixed by ordinary through holes, so that each kind of polishing device can only correspond to one specification of spiral weld pipe, therefore, there is certain limitation, and when multiple specifications of weld pipes need to be polished, the corresponding polishing devices need to be frequently replaced, which greatly reduces the production efficiency of the weld pipe and is difficult to adapt to the rapid adjustment of multiple specifications of weld pipes. UTILITY MODEL CONTENTS

[0005] The utility model provides a spiral weld pipe inner cavity adjustable diameter polishing device which is simple in structure and convenient and reliable.

[0006] The utility model discloses a technical scheme for a spiral welded pipe inner cavity diameter-adjustable polishing device, which comprises a polishing support frame and a polishing workbench arranged in sequence, the top end of the polishing support frame is provided with a transmission conduit, the side of the polishing support frame facing the polishing workbench is connected with a polishing device, and the polishing workbench is used for placing the spiral welded pipe.

[0007] The inner wall of the outer cover cylinder is slidably connected with a motor connected with the outer wall of the transmission conduit, the output end of the motor is connected with a main shaft connected with the four main supports, the outer wall of the main support is provided with two rectangular blocks, the outer wall of the rectangular block is provided with a second bolt hole in communication with the long horizontal hole, and the inner wall of the second bolt hole is threadedly sleeved with a sliding bolt slidably connected with the inner wall of the long horizontal hole.

[0008] The outer wall of the auxiliary support is provided with two first bolt holes penetrating through the inner walls of the polishing fabric and the fixing plate, and the inner wall of the first bolt hole is threadedly sleeved with a fixing bolt.

[0009] The outer wall of the outer cover cylinder is provided with a plurality of first connecting plates arranged in a circular array, and the first connecting plates are used for contacting the outer wall of the spiral welded pipe.

[0010] The top end of the polishing support frame is fixedly installed with a frequency conversion motor, the top end of the polishing workbench is slidably connected with a moving plate connected with the bottom end of the transmission conduit, the output end of the frequency conversion motor is connected with a driving gear, and the outer wall of the driving gear is engaged with a transmission rack connected with the moving plate.

[0011] The outer wall of the motor is provided with a cylinder with the same diameter as the outer wall of the transmission conduit, the outer wall of the cylinder and the outer wall of the transmission conduit are respectively provided with second connecting plates, adjacent second connecting plates are connected through bolts, the bottom end of the motor is connected with a base, and the bottom end of the base is connected with a plurality of traveling wheels slidably connected with the inner wall of the outer cover cylinder.

[0012] In the utility model, the auxiliary support is changed from a through hole to a long horizontal hole, and the long horizontal hole has a scale, so that the diameter can be clearly seen, the diameter of the device is adjusted by adjusting the position of the bolt in the horizontal hole, the corresponding inner diameter of the polished spiral welded pipe is met, the polishing of spiral welded pipes of various specifications is adapted, and the applicability of the equipment is improved.

[0013] In this way, the polishing device is avoided from being disassembled and replaced, various diameters are quickly adjusted, useless labor is reduced, and the production efficiency is improved.

[0014] Meanwhile, the blowing ash cooling holes are added on the outer cover cylinder body, the blowing ash pipe is inserted into the inner cavity of the outer cover cylinder body through the blowing ash cooling holes, dust is effectively cleaned, the temperature of the motor during operation is reduced, the motor is effectively cooled, and the dust is recycled through the dust suction device, and the operation environment on site is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application,

[0017] Figure 2 It is a schematic diagram of the motor mounting structure of the present application,

[0018] Figure 3 It is a schematic diagram of the main shaft mounting structure of the present application,

[0019] Figure 4 It is a schematic diagram of the polishing fabric structure of the present application,

[0020] Figure 5 It is a schematic diagram of the overall structure of the main support of the present application,

[0021] Figure 6 It is a schematic diagram of the overall structure of the auxiliary support of the present application.

[0022] In the drawing: 1, polishing support frame; 2, polishing workbench; 3, frequency conversion motor; 4, transmission rack; 5, transmission guide pipe; 6, polishing device; 7, spiral welded pipe; 8, outer cover cylinder body; 9, second connecting plate; 10, blowing ash cooling hole; 11, motor; 12, base; 13, walking wheel; 14, main support; 15, auxiliary support; 16, sliding bolt; 17, fixed bolt; 18, first connecting plate; 19, polishing fabric; 20, long strip transverse hole; 21, main shaft; 22, fixed plate; 23, first bolt hole; 24, second bolt hole; 25, dust suction device. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0024] Example 1

[0025] Reference Figures 1-6The utility model provides a kind of adjustable diameter polishing device for spiral welded pipe inner cavity, including the polishing support frame 1 and polishing workstation 2 that are sequentially arranged, the top of polishing support frame 1 is equipped with transmission conduit 5, transmission conduit 5 is used to push motor 11 movement, polishing support frame 1 is connected with polishing device 6 to the side towards polishing workstation 2, and the polishing workstation 2 is used to place spiral welded pipe 7;Polishing device 6 includes outer cover cylinder 8, and the inner diameter of outer cover cylinder 8 is same with the inner diameter of spiral welded pipe 7;Four main supports 14 that are circular array distribution are rotatably connected to the inner wall of outer cover cylinder 8, and main support 14 is used to drive vice support 15 rotation, and the outer wall of main support 14 is connected with vice support 15, and vice support 15 is used to drive polishing fabric 19 rotation, and two mirror image distribution long strip transverse holes 20 are opened on the outer wall of vice support 15, and scale is engraved on the outer wall of long strip transverse hole 20, to facilitate the diameter of polishing device 6 is observed, and the outer wall of vice support 15 is connected with polishing fabric 19, and polishing fabric 19 is used to polish the inner wall of spiral welded pipe 7, and the outer wall of polishing fabric 19 is connected with fixed plate 22, and the outside of spiral welded pipe 7 is equipped with dust extraction device 25, such as setting dust collector, and dust is recycled, to greatly improve the working environment of scene.

[0026] The inner wall of outer cover cylinder 8 is opened with ash blowing cooling hole 10, and ash blowing cooling hole 10 is used to clean dust and cool motor 11.

[0027] The inner wall of outer cover cylinder 8 is slidably connected with motor 11 connected with the outer wall of transmission conduit 5, and the output end of motor 11 is connected with main shaft 21 connected with four main supports 14, and the outer wall of main support 14 is equipped with two rectangular blocks, and the outer wall of rectangular block is opened with second bolt hole 24 communicated with long strip transverse hole 20, and the inner wall of second bolt hole 24 is threadedly sleeved with sliding bolt 16 slidably connected with the inner wall of long strip transverse hole 20, and sliding bolt 16 is used to tighten vice support 15.

[0028] The outer wall of vice support 15 is opened with two first bolt holes 23 penetrating the inner wall of polishing fabric 19 and fixed plate 22, and the inner wall of first bolt hole 23 is threadedly sleeved with fixed bolt 17.

[0029] In use, spiral welded pipe 7 is placed on polishing workstation 2, after loosening main support 14 and vice support 15 by screwing sliding bolt 16, vice support 15 is moved along long strip transverse hole 20, after adjusting to the size matched with the diameter of spiral welded pipe 7, sliding bolt 16 is tightened to drive main support 14 and vice support 15 to be fixed, motor 11 is started to drive main support 14 to rotate through main shaft 21, main support 14 drives vice support 15 to rotate, and vice support 15 drives polishing fabric 19 to rotate through fixed plate 22.

[0030] Embodiment 2

[0031] The difference between the embodiment and the first embodiment is that the outer wall of the outer cover cylinder 8 is provided with a plurality of first connecting plates 18 arranged in a circular array, the first connecting plates 18 are used to align the outer cover cylinder 8 and the spiral welded pipe 7, and the first connecting plates 18 are used to contact the outer wall of the spiral welded pipe 7.

[0032] The top end of the polishing support frame 1 is fixedly provided with a variable frequency motor 3, the variable frequency motor 3 is used to drive a transmission guide pipe 5 to push a motor 11, the top end of the polishing workbench 2 is slidably connected with a moving plate connected with the bottom end of the transmission guide pipe 5, the output end of the variable frequency motor 3 is connected with a driving gear, and the outer wall of the driving gear is engaged with a transmission rack 4 connected with the moving plate.

[0033] The outer wall of the motor 11 is provided with a cylinder with the same diameter as the outer wall of the transmission guide pipe 5, the outer wall of the cylinder and the outer wall of the transmission guide pipe 5 are respectively provided with second connecting plates 9, adjacent second connecting plates 9 are connected by bolts, so as to connect the motor 11 and the transmission guide pipe 5; the bottom end of the motor 11 is connected with a base 12, the bottom end of the base 12 is connected with a plurality of walking wheels 13 slidably connected with the inner wall of the outer cover cylinder 8, and the walking wheels 13 are used to drive the motor 11 to move.

[0034] In use, the variable frequency motor 3 is started to drive the moving plate to move through the transmission rack 4, the moving plate drives the transmission guide pipe 5 to push the motor 11, the motor 11 is driven into the inside of the spiral welded pipe 7 through the walking wheels 13 installed on the base 12, the motor 11 drives the polishing fabric 19 to polish the inner wall of the spiral welded pipe 7, and the dust in the polishing process is cleaned through the starting of the dust collection device 25, and the operation is completed.

[0035] The remaining structure is the same as that of the first embodiment.

[0036] It should be noted that the above embodiments are only used to illustrate the technical scheme of the utility model and are not limited, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical scheme of the utility model, and all should be covered in the scope of the claims of the utility model.

Claims

1. A spiral welded pipe inner cavity diameter-adjustable polishing device, comprising a polishing support frame (1) and a polishing workbench (2) arranged in sequence, the top end of the polishing support frame is provided with a transmission guide pipe (5), the side of the polishing support frame (1) facing the polishing workbench (2) is connected with a polishing device (6), and the polishing workbench (2) is used for placing a spiral welded pipe (7); characterized in that: The polishing device (6) comprises a cover cylinder (8), the inner diameter of the cover cylinder (8) is the same as that of the spiral welded pipe (7); four main supports (14) in circular array are rotationally connected to the inner wall of the cover cylinder (8), the outer wall of the main support (14) is connected with a secondary support (15), two mirror image distributed long strip transverse holes (20) are formed in the outer wall of the secondary support (15), the outer wall of the secondary support (15) is connected with a polishing fabric (19), the outer wall of the polishing fabric (19) is connected with a fixed plate (22), the outer part of the spiral welded pipe (7) is provided with a dust suction device (25), and the inner wall of the cover cylinder (8) is provided with a soot blowing cooling hole (10). ​ 2. A device for polishing the inside of a spiral welded pipe with adjustable diameter of the lumen according to claim 1, characterized in that: The inner wall of the cover cylinder (8) is slidably connected with a motor (11) connected with the outer wall of the transmission conduit (5), the output end of the motor (11) is connected with a main shaft (21) connected with the four main supports (14), the outer wall of the main support (14) is provided with two rectangular blocks, the outer wall of the rectangular block is provided with a second bolt hole (24) in communication with the long strip transverse hole (20), and the inner wall of the second bolt hole (24) is threadedly sleeved with a sliding bolt (16) slidably connected with the inner wall of the long strip transverse hole (20).

3. A device for polishing the inside of a spiral welded pipe with adjustable diameter of the lumen according to claim 2, characterized in that: The outer wall of the secondary support (15) is provided with two first bolt holes (23) penetrating the inner walls of the polishing fabric (19) and the fixed plate (22), and the inner wall of the first bolt hole (23) is threadedly sleeved with a fixed bolt (17).

4. A device for polishing the inside of a spiral welded pipe with adjustable diameter of the lumen according to claim 1, characterized in that: The outer wall of the cover cylinder (8) is provided with a plurality of first connecting plates (18) in circular array, and the first connecting plates (18) are used for contacting the outer wall of the spiral welded pipe (7).

5. A device for polishing the interior of a spiral welded pipe with adjustable diameter according to claim 1, characterized in that: The top end of the polishing support frame (1) is fixedly provided with a frequency conversion motor (3), the top end of the polishing workbench (2) is slidably connected with a moving plate connected with the bottom end of the transmission conduit (5), the output end of the frequency conversion motor (3) is connected with a driving gear, and the outer wall of the driving gear is engaged with a transmission rack (4) connected with the moving plate.

6. A device for polishing the inside of a spiral welded pipe with adjustable diameter of the lumen according to claim 2, characterized in that: The outer wall of the motor (11) is provided with a cylinder with the same diameter as the outer wall of the transmission conduit (5), the outer wall of the cylinder and the outer wall of the transmission conduit (5) are respectively provided with second connecting plates (9), adjacent second connecting plates (9) are connected by bolts; the bottom end of the motor (11) is connected with a base (12), and the bottom end of the base (12) is connected with a plurality of walking wheels (13) slidably connected with the inner wall of the cover cylinder (8).

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