CN115533703A

CN115533703A - Grinding and polishing machine for weld joints of spiral steel pipes

Info

Publication number: CN115533703A
Application number: CN202211380533.8A
Authority: CN
Inventors: 汤洋; 徐伟伟; 吴良坤
Original assignee: Hefei Huafeng Heating & Ventilating Equipment Co ltd
Current assignee: Hefei Huafeng Heating & Ventilating Equipment Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2022-12-30

Abstract

The invention discloses a grinding and polishing machine for a weld joint of a spiral steel pipe, which comprises an abrasive belt polishing machine base, an openable outer cover arranged at the left part of the upper end surface of the abrasive belt polishing machine, a rotating disc rotatably arranged in the middle of the abrasive belt polishing machine base, an abrasive belt polishing assembly arranged on the rotating disc and a conveying assembly used for conveying a spiral pipeline, wherein an auxiliary reinforcing assembly is arranged on the abrasive belt polishing assembly, the auxiliary reinforcing assembly can extend and shorten, a pipe limiting assembly is arranged on the conveying assembly, and the pressing degree of the pipe limiting assembly on the pipeline can be freely adjusted. This spiral steel pipe welding seam coping burnishing and polishing machine can effectively avoid the take-up pulley easily not hard up under the machine shock condition to take place to slide, can carry out not equidimension spacing of equidimension simultaneously to the pipeline in carrying, reduces between spacing subassembly and the pipeline at removal in-process frictional force, reduces the degree of wear of spacing subassembly, increase of service life.

Description

Grinding and polishing machine for weld joints of spiral steel pipes

Technical Field

The invention relates to the technical field of polishing of spiral steel pipes, in particular to a grinding and polishing machine for welding seams of spiral steel pipes.

Background

The spiral seam steel pipe is formed by welding a strip steel coil serving as a raw material through a normal-temperature extrusion molding process and an automatic double-wire double-sided submerged arc welding process.

Aiming at spiral welding seams of spiral steel pipes, the existing polishing equipment mainly comprises flexible polishing and rigid polishing, the existing flexible polishing equipment mainly adopts an abrasive belt to polish, and the abrasive belt belongs to a quick-wear part and needs to be frequently disassembled and replaced, so that the abrasive belt polisher is provided with an adjustable abrasive belt tensioning wheel. The inventor finds that the tensioning wheel of the common abrasive belt sander mainly utilizes the bolt sleeve to extrude the pressing piece to fix the tensioning wheel, but in the installation mode, the machine is easy to vibrate during working, the bolt sleeve and the threaded shaft are easy to loosen, and the pressing piece cannot extrude and fix the tensioning wheel, so that the abrasive belt is easy to lose the tensioning force suddenly in the operation process of the abrasive belt sander; meanwhile, conveying equipment matched with the abrasive belt grinding and polishing machine does not limit the conveying pipeline up and down or mainly adopts rigid limiting even if the conveying equipment is limited, and the height of burrs of a welding joint is different, so that the limiting wheel and the abrasion condition are serious. Aiming at the problems, the inventor provides a spiral steel pipe welding seam grinding and polishing machine which effectively avoids the situation that a tensioning wheel is easy to loosen and slide under the vibration state of the machine, can limit pipelines in conveying to different degrees and reduces the friction force between a limiting component and the conveying pipeline in the moving process.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a grinding and polishing machine for a weld joint of a spiral steel pipe, which solves the problems that the existing abrasive belt type grinding equipment for the weld joint of the spiral steel pipe has tensioning wheels which are easily affected by the integral vibration of the machine and suddenly loose and offset, and upper and lower limiting assemblies of a pipeline on a matched pipeline conveying assembly are easily abraded.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a spiral steel pipe welding seam coping burnishing machine, includes abrasive band polisher base, sets up dustcoat that can open and shut, rotation that set up at abrasive band polisher up end left part install the rolling disc at abrasive band polisher base middle part, set up the abrasive band on the rolling disc and polish the subassembly and be used for carrying the conveying assembly of spiral pipeline, the abrasive band is polished and is provided with supplementary subassembly of strengthening on the subassembly, supplementary subassembly of strengthening is used for preventing abrasive band take-up pulley or epaxial threaded spindle rotation through key and keyway complex mode, supplementary subassembly itself can extend and shorten, be provided with the spacing subassembly of pipe fitting on the conveying assembly, the spacing subassembly of pipe fitting can freely adjust to the degree that compresses tightly of pipeline.

Preferably, the abrasive belt polishing assembly comprises a fixed mounting wheel fixedly connected to the rotating disc, a polishing abrasive belt installed on the outer surface of the fixed mounting wheel in a tensioning mode, an abrasive belt tensioning wheel arranged on the polishing inner surface, an adjusting groove arranged on the rotating disc in a penetrating mode, a threaded shaft fixedly connected to one end of a wheel shaft of the abrasive belt tensioning wheel, a pressing sleeve in threaded sliding connection with the threaded shaft, and a threaded sleeve frame in threaded connection with the threaded shaft, wherein the abrasive belt tensioning wheel is in sliding connection in the adjusting groove, the threaded sleeve frame extrudes the pressing sleeve, and the auxiliary reinforcing assembly is arranged in the mounting groove and is extruded to be limited with the wheel shaft of the abrasive belt tensioning wheel.

Preferably, a holding handle for holding is arranged on the front end face of the threaded sleeve frame.

Preferably, the auxiliary reinforcing assembly comprises a telescopic rod arranged in the side wall of the adjusting groove, a first reinforcing spring sleeved outside a thin shaft of the telescopic rod, and a matching frame fixedly connected with one end of the thin shaft of the telescopic rod, wherein a butt-joint key is arranged on an arc-shaped surface of the matching frame, and a key groove matched with the butt-joint key is formed in a wheel shaft of the abrasive belt tensioning wheel.

Preferably, the conveying assembly comprises a conveying frame for supporting, a conveying support frame fixedly connected to the upper end face of the conveying frame, and a pushing shaft group arranged between the conveying support frames.

Preferably, the spacing subassembly of pipe fitting includes the bed frame of fixed connection at the carriage up end, runs through the shifting chute of seting up at rear portion before the bed frame, through the axle sleeve of mounting groove grafting installation in the shifting chute, with axle sleeve sliding connection's the axle that slides, fixed connection is at the limiting plate of the epaxial end that slides, symmetrical arrangement under the limiting plate arc piece of terminal surface and with bed frame threaded connection's lower thread shaft, the upper end fixedly connected with rolling disc of lower thread shaft, lower thread shaft and limiting plate up end only contact are arranged, be provided with the pulling force control subassembly between axle that slides and the sliding chute, the pulling force control subassembly is used for adjusting the extension length of axle that slides and makes the axle that slides receive decurrent pulling force.

Preferably, tension control subassembly including fix on the axle sleeve on the chamber wall the second strengthen spring, fixed connection at the axle sleeve lower extreme that slides fixed disk, fixed connection at the axle sleeve inner chamber wall the mounting disk and with mounting disk threaded connection's bolt, the second spring sets up in the outside of the axle that slides, fixed disk and axle sleeve inner chamber wall sliding connection.

Preferably, the lower end of the bolt is fixedly connected with a matching disc, and the end face of the matching disc is provided with a cross groove or a plum blossom groove capable of supporting an external tool to be screwed.

Preferably, the belt sander polishing base is hinged with the openable outer cover, the openable outer cover comprises an outer cover body hinged with the belt sander polishing base through a hinge, and the lower end face of the outer cover body is connected with the right part of the upper end face of the belt sander polishing base in a clamping mode through the clamping piece matched with the clamping buckle protrusion.

(III) advantageous effects

The invention provides a grinding and polishing machine for a weld joint of a spiral steel pipe. The method has the following beneficial effects:

according to the polishing machine for the weld joint of the spiral steel pipe, the auxiliary reinforcing assembly is arranged, so that the threaded shaft on the tensioning wheel or the shaft can be limited and fixed, the condition that the tensioning wheel is suddenly effective is effectively avoided, and the safety performance of the whole polishing machine is effectively improved; through the spacing subassembly of pipe fitting that sets up, the spacing friction that compresses tightly piece and pipeline on the effective conveyor components is great, short-lived problem of life.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a conveyor assembly mounting structure according to the present invention;

FIG. 3 is a schematic view of an installation structure of the auxiliary reinforcing member of the present invention;

figure 4 is a schematic view of a sanding belt mounting structure according to the present invention;

FIG. 5 is a perspective view of an auxiliary reinforcement assembly of the present invention;

FIG. 6 is a schematic view of the overall structure of the pipe fitting positioning assembly of the present invention;

FIG. 7 is a schematic view of the disassembled structure of the pipe fitting limiting assembly of the present invention;

FIG. 8 is an enlarged view of the area A in FIG. 7 according to the present invention.

In the figure: 1. a base of a belt sander; 2. an openable and closable housing; 21. a housing body; 22. an articulation member; 23. a fastener; 24. the buckle is protruded; 3. rotating the disc; 4. a belt sanding component; 41. fixedly mounting wheels; 42. sanding an abrasive belt; 43. a belt tensioner; 44. an adjustment groove; 45. extending the threaded shaft; 46. a compression sleeve; 47. a threaded sleeve frame; 48. a grip handle; 49. a secondary reinforcement assembly; 491. a telescopic rod; 492. a first reinforcing spring; 493. a fitting frame; 494. a docking key; 5. a delivery assembly; 51. a carriage; 52. conveying the support frame; 53. pushing the shaft group; 6. a pipe fitting limiting assembly; 61. a base frame; 62. a moving groove; 63. mounting grooves; 64. a shaft sleeve; 641. a second reinforcing spring; 642. fixing the disc; 643. mounting a disc; 644. a bolt; 645. a mating tray; 65. a slip axis; 66. a limiting plate; 67. an arc-shaped block; 68. pressing down the threaded shaft; 69. and (3) twisting the disc.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a spiral steel pipe welding seam coping burnishing and polishing machine, including abrasive band polisher base 1, the dustcoat 2 that can open and shut of setting at abrasive band polisher up end left part, rotate and install the rolling disc 3 at abrasive band polisher base 1 middle part, the abrasive band of setting on rolling disc 3 is polished subassembly 4 and is used for carrying spiral pipeline's transport module 5, be provided with supplementary subassembly 49 that strengthens on the abrasive band polishing subassembly 4, supplementary subassembly 49 that strengthens is used for preventing abrasive band take-up pulley 43 or epaxial threaded spindle rotation through key and keyway complex mode, supplementary subassembly 49 itself of strengthening can extend and shorten, be provided with the spacing subassembly 6 of pipe fitting on the transport module 5, the spacing subassembly 6 of pipe fitting can freely adjust to the degree of compressing tightly of pipeline. According to the invention, the auxiliary reinforcing component 49 is arranged, so that the threaded shaft on the tensioning wheel or the shaft can be limited and fixed, the sudden actual effect condition of the tensioning wheel is effectively avoided, and the safety performance of the whole machine is effectively improved; through the spacing subassembly 6 of pipe fitting that sets up, the spacing frictional force that compresses tightly piece and pipeline on the effective conveying subassembly 5 of avoiding is great, short-lived problem of life.

In this embodiment, the belt sanding assembly 4 includes a fixed mounting wheel 41 fixedly connected to the rotary disc 3, a sanding belt 42 installed on the outer surface of the fixed mounting wheel 41 in a tensioned manner, a belt tensioning wheel 43 disposed on the inner surface of the sanding belt, an adjusting groove 44 disposed on the rotary disc 3 in a penetrating manner, a protruding threaded shaft 45 fixedly connected to one end of the axle of the belt tensioning wheel 43, a pressing sleeve 46 in threaded sliding connection with the threaded shaft, and a threaded sleeve frame 47 in threaded connection with the threaded shaft, wherein the belt tensioning wheel 43 is in sliding connection with the adjusting groove 44, the threaded sleeve frame 47 presses the pressing sleeve 46, and an auxiliary reinforcing assembly 49 is disposed in the mounting groove 63 and is pressed and limited with the axle of the belt tensioning wheel 43. Referring to fig. 3 and 4, through the auxiliary reinforcing component 49 arranged in the mounting groove 63, after the belt tensioning wheel 43 extrudes and fixes the pressing sleeve 46 in a manner of rotating the thread sleeve frame 47 in a thread fit manner, the shaft of the tensioning shaft can be further limited and fixed, and the problem of potential safety hazard caused by rotation between the thread sleeve frame 47 and the thread shaft due to vibration and further sliding of the belt tensioning wheel 43 in the adjusting groove 44 and further feeding of the sanding belt 42 in the running process is effectively avoided.

Specifically, the front end surface of the screw holder 47 is provided with a grip handle 48 for gripping.

In this embodiment, the auxiliary reinforcing assembly 49 includes a telescopic rod 491 disposed in the side wall of the adjusting groove 44, a first reinforcing spring 492 sleeved outside the thin shaft of the telescopic rod 491, and a matching frame 493 fixedly connected to one end of the thin shaft of the telescopic rod 491, wherein an arc surface of the matching frame 493 is provided with a butt key 494, and a key groove matched with the butt key 494 is formed on the wheel axle of the belt tensioning wheel 43. Referring to fig. 5, the telescopic rod 491 can extend and shorten itself, so that the auxiliary reinforcing component 49 can extend and shorten, and after the auxiliary reinforcing component 49 is installed, the adjustment work of the abrasive belt tensioning shaft itself is not affected, and the assembling frame 493 and the abrasive belt tensioning shaft can be assembled conveniently and quickly by adopting the butt key 494 and the key groove matching mode.

In this embodiment, the conveying assembly 5 includes a conveying frame 51 for supporting, a conveying support frame 52 fixedly connected to an upper end surface of the conveying frame 51, and a pushing shaft group 53 disposed between the conveying support frames 52.

Specifically, the pipe fitting limiting assembly 6 comprises a base frame 61 fixedly connected to the upper end surface of the conveying frame 51, a moving groove 62 penetrating through the front and rear parts of the base frame 61, a shaft sleeve 64 inserted into the moving groove 62 through a mounting groove 63, a sliding shaft 65 slidably connected with the shaft sleeve 64, a limiting plate 66 fixedly connected to the upper end surface of the sliding shaft 65, arc blocks 67 symmetrically arranged on the lower end surface of the limiting plate 66, and a lower pressing threaded shaft 68 threadedly connected with the base frame 61, the upper end of the lower pressing threaded shaft 68 is fixedly connected with the rotating disc 3, the lower pressing threaded shaft 68 is only in contact with the upper end surface of the limiting plate 66, a tension control assembly is arranged between the sliding shaft 65 and the sliding groove, and the tension control assembly is used for adjusting the extending length of the sliding shaft 65 and enabling the sliding shaft 65 to receive downward tension. Referring to fig. 6 and 7, when the pipe fittings on the pushing shaft group 53 need to be limited up and down, the rotating disc 3 only needs to be screwed at the moment, so that the downward pressing threaded shaft 68 pushes the limiting plate 66 downwards, and the limiting plate 66 pushes the downward sliding shaft 65 at the moment, so that the arc-shaped blocks 67 are limited by extrusion for the key in conveying. If need adjust arc piece 67 and limiting plate 66 and carry the extrusion force size between the pipe fitting, the personnel adjust the extension length of axle 65 that slides through spacing subassembly this moment, thereby because tension control subassembly takes place elastic deformation, the pulling force that slides the axle 65 and apply to stretching out different length is not of uniform size, make limiting plate 66 and arc piece 67 correspond the change with the frictional force size between the not co-altitude burr of spiral welding seam, thereby reduce limiting plate 66 and arc piece 67 and carry out spacing fixed degree of wear to the pipe fitting, improve the life of spacing subassemblies of pipelines such as limiting plate 66.

Specifically, the tension control assembly comprises a second reinforcing spring 641 fixed on the upper cavity wall of the sleeve 64, a fixing plate 642 fixedly connected to the lower end of the sliding shaft 65, a mounting plate 643 fixedly connected to the inner cavity wall of the sleeve 64, and a bolt 644 in threaded connection with the mounting plate 643, wherein the second spring is arranged outside the sliding shaft 65, and the fixing plate 642 is in sliding connection with the inner cavity wall of the sleeve 64. Referring to fig. 8, when the pulling force that limiting plate 66 received needs to be adjusted, can be through feeding bolt 644, compress second reinforcing spring 641 to the pulling force size that increase limiting plate 66 received makes limiting plate 66 when spacing about going on threaded steel pipe, and the degree of difficulty that elastic deformation takes place again under the not co-altitude burr effect of second reinforcing spring 641 is different, thereby can rationally control the pulling force size that limiting plate 66 received according to the demand.

Specifically, the lower end of the bolt 644 is fixedly connected with a matching disk 645, and a cross groove or a plum blossom groove capable of supporting an external tool to be screwed is arranged on the end face of the matching disk 645. Referring to fig. 8, the bolt 644 can be quickly adjusted by a person using a tool by providing a mating disc 645 and providing a cross recess or a plum recess.

In this embodiment, the articulated dustcoat 2 that can open and shut that has on the abrasive band machine base of polishing, the dustcoat 2 that can open and shut includes the dustcoat body 21 articulated with the abrasive band machine base of polishing through articulated elements 22, and the lower terminal surface of dustcoat body 21 is connected with the right part block of abrasive band base up end through 23 cooperation buckle archs 24 of buckle.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spiral steel pipe welding seam coping burnishing and polishing machine, includes abrasive band polisher base, the dustcoat that can open and shut of setting in abrasive band polisher up end left part, rotates and installs the rolling disc at abrasive band polisher base middle part, sets up the abrasive band on the rolling disc and polish the subassembly and be used for carrying the transport assembly of spiral pipeline, its characterized in that: the abrasive belt grinding assembly is provided with an auxiliary reinforcing assembly, the auxiliary reinforcing assembly is used for preventing an abrasive belt tensioning wheel or an axial threaded shaft from rotating in a key and key groove matched mode, the auxiliary reinforcing assembly can extend and shorten, a pipe limiting assembly is arranged on the conveying assembly, and the compression degree of the pipe limiting assembly on a pipeline can be freely adjusted.

2. The spiral steel pipe weld grinding and polishing machine according to claim 1, characterized in that: the abrasive belt polishing assembly comprises a fixed mounting wheel fixedly connected to a rotating disc, a polishing abrasive belt tensioned on the outer surface of the fixed mounting wheel, an abrasive belt tensioning wheel arranged on the polishing inner surface, an adjusting groove arranged on the rotating disc in a penetrating mode, a threaded shaft fixedly connected to one end of an axle of the abrasive belt tensioning wheel, a pressing sleeve connected with the threaded shaft in a threaded sliding mode and a threaded sleeve frame connected to the threaded shaft in a threaded mode, the abrasive belt tensioning wheel is connected in the adjusting groove in a sliding mode, the threaded sleeve frame extrudes the pressing sleeve, and the auxiliary reinforcing assembly is arranged in the installing groove and is extruded to be limited with the axle of the abrasive belt tensioning wheel.

3. The spiral steel pipe weld grinding and polishing machine according to claim 2, characterized in that: and a holding handle for holding is arranged on the front end face of the threaded sleeve frame.

4. The spiral steel pipe weld grinding and polishing machine according to claim 2, characterized in that: the auxiliary reinforcing assembly comprises a telescopic rod arranged in the side wall of the adjusting groove, a first reinforcing spring sleeved outside the thin shaft of the telescopic rod and a matching frame fixedly connected with one end of the thin shaft of the telescopic rod, a butt joint key is arranged on the arc-shaped surface of the matching frame, and a key groove matched with the butt joint key is formed in the wheel shaft of the abrasive belt tensioning wheel.

5. The spiral steel pipe weld grinding and polishing machine according to claim 2, characterized in that: the conveying assembly comprises a conveying frame for supporting, conveying support frames fixedly connected to the upper end face of the conveying frame and a pushing shaft group arranged between the conveying support frames.

6. The spiral steel pipe weld grinding and polishing machine according to claim 5, characterized in that: the spacing subassembly of pipe fitting includes the bed frame of fixed connection at the carriage up end, runs through the shifting chute of seting up at the rear portion before the bed frame, through the mounting groove peg graft install the axle sleeve in the shifting chute, with axle sleeve sliding connection's the axle that slides, fixed connection are at the limiting plate of the epaxial terminal surface that slides, symmetrical arrangement under the limiting plate arc piece of terminal surface and with bed frame threaded connection's lower thread shaft, the upper end fixedly connected with rolling disc of thread shaft pushes down, the thread shaft that pushes down only contacts with the limiting plate up end and arranges, be provided with the tension control subassembly between axle that slides and the shifting chute, the tension control subassembly is used for adjusting the extension length of the axle that slides and makes the axle that slides receive decurrent pulling force.

7. The spiral steel pipe weld grinding and polishing machine according to claim 6, characterized in that: the tensile force control subassembly including fix on the axle sleeve on the chamber wall the second strengthen spring, fixed connection at the fixed disk of axle sleeve lower extreme that slides, fixed connection at the mounting disk of axle sleeve inner chamber wall and with mounting disk threaded connection's bolt, the second spring sets up in the outside of the axle that slides, fixed disk and axle sleeve inner chamber wall sliding connection.

8. The spiral steel pipe weld grinding and polishing machine according to claim 7, characterized in that: the lower end of the bolt is fixedly connected with a matching disc, and a cross groove or a plum blossom groove capable of supporting an external tool to be screwed is formed in the end face of the matching disc.

9. The spiral steel pipe weld grinding and polishing machine according to any one of claims 1 to 8, characterized in that: the belt sander polishing base is hinged with the openable outer cover, the openable outer cover comprises an outer cover body hinged with the belt sander polishing base through a hinge piece, and the lower end face of the outer cover body is connected with the right portion of the upper end face of the belt sander polishing base in a clamping mode through the clamping piece matched with the clamping buckle protrusions.