Synchronous grinding device for inner surface and outer surface of steel pipe
By designing a synchronous grinding device, efficient grinding of the inner and outer surfaces of steel pipes is achieved, solving the problems of high labor intensity, noise and dust in existing technologies, improving work efficiency and reducing environmental pollution.
Patent Information
- Application Number
- CN202520433971.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing technologies for grinding the inner and outer surfaces of steel pipes suffer from problems such as high labor intensity, significant noise and dust pollution that harms human health, low work efficiency, complex mechanisms, and the need for offline production.
A synchronous grinding device was designed, comprising multiple input roller conveyors, output roller conveyors, slide rails, grinding components, a pressing mechanism, and a dust removal component. The device uses first and second grinding heads to simultaneously grind the inner and outer surfaces of the steel pipe, and uses high-pressure jet nozzles and low-pressure dust suction heads to adsorb dust, thus achieving dust removal in a closed structure.
It improves grinding efficiency, reduces dust and noise, has good environmental protection and adaptability, and can quickly replace grinding components to adapt to steel pipes of different sizes and specifications.
Smart Images
Figure CN223802180U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to copper pipe grinding technology field especially relates to a kind of synchronous grinding device for the inner and outer surfaces of steel pipe. BACKGROUND
[0002] Steel pipe is a kind of hollow section, its length is much larger than diameter or perimeter steel, steel pipe is not only used to transport fluid and powder solid, exchange heat energy, manufacture mechanical parts and container, it is a kind of economic steel, with steel pipe manufacturing building structure truss, support and mechanical support, can reduce weight, save metal, and can realize mechanized construction, with steel pipe manufacturing highway bridge not only can save steel, simplify construction, but also can greatly reduce the area of protective layer, save investment and maintenance cost.
[0003] Steel pipe is generally produced from rolling line, and the inner surface and the outer surface of the steel pipe usually have defects such as scarring and wrinkling. In order to meet the use requirements of the steel pipe, the inner and outer surfaces of the steel pipe need to be ground. In the prior art, the outer surface is ground by manual sanding, and the inner surface is ground by an internal grinding machine. However, the inner and outer surfaces have the following problems: manual grinding has high labor intensity, the noise and dust generated during the grinding process are harmful to the human body, the internal grinding head can only enter from one end to grind about half of the length of the steel pipe, and then enter from the other end to grind the other half of the length of the steel pipe, which causes low working efficiency and complex internal grinding device mechanism. Due to the low grinding efficiency, the grinding production process is generally offline production, which needs to be hoisted and transferred between the steel pipe production line and the grinding line, consumes a lot of manpower and material resources, and has low grinding efficiency. In summary, there is an urgent need for a synchronous grinding device for the inner and outer surfaces of a steel pipe. SUMMARY
[0004] To solve the above-mentioned technical problems in the prior art, the utility model provides a synchronous grinding device for the inner and outer surfaces of a steel pipe, which comprises a plurality of input roller tables, a plurality of output roller tables, a slide rail arranged between the input roller tables and the output roller tables, a grinding assembly arranged on the slide rail, a pressure feeding mechanism arranged on both sides of the grinding assembly, and a dust removal assembly arranged between the grinding assembly and the output roller tables.
[0005] The grinding assembly comprises a first grinding head arranged outside the steel pipe, a second grinding head arranged inside the steel pipe, a first suction block connected to the first grinding head, a second suction block connected to the second grinding head, and a box arranged around the steel pipe. The inner side of the first grinding head and the outer side of the second grinding head are both arranged as arc surfaces and are matched with the steel pipe. The first suction block and the second suction block are connected with a driving unit, and the first suction block and the second suction block can be driven to rotate along the circumference of the steel pipe by the driving unit.
[0006] The dust removal assembly comprises a jet nozzle arranged at one end of the steel pipe and a first dust suction head arranged at the other end of the steel pipe. The first dust suction head is connected with a dust collector through a pipeline. The dust removal assembly is provided with a lifting mechanism, and the jet nozzle and the first dust suction head can be lifted by the lifting mechanism.
[0007] The pressure feeding mechanism comprises a plurality of pipe supporting wheels arranged below the steel pipe and a plurality of pressing wheels arranged above the steel pipe. The input roller way and the output roller way can drive the steel pipe to displace along the axial direction.
[0008] Further, in the above-mentioned synchronous grinding device for the inner and outer surfaces of a steel pipe, the dust removal assembly is provided with a second dust suction head and a third dust suction head. The first dust suction head is arranged opposite to one end of the steel pipe. The second dust suction head is arranged at the contact position of the steel pipe and the pressing wheel. The third dust suction head is arranged at the contact position of the steel pipe and the pipe supporting wheel. The second dust suction head and the third dust suction head are both connected to the dust collector through the pipeline, and the second dust suction head and the third dust suction head can be lifted by the lifting mechanism.
[0009] As a specific embodiment, in the above-mentioned synchronous grinding device for the inner and outer surfaces of a steel pipe, a plurality of grinding assemblies are arranged on the slide rail. The first grinding head and the second grinding head of each grinding assembly are different in specification.
[0010] As a specific embodiment, in the above-mentioned synchronous grinding device for the inner and outer surfaces of a steel pipe, the first grinding head and the first suction block and the second grinding head and the second suction block are detachably connected.
[0011] As a specific embodiment, in the above-mentioned synchronous grinding device for the inner and outer surfaces of a steel pipe, a material turning mechanism is arranged on one side of the steel pipe.
[0012] As a specific embodiment, in the above-mentioned synchronous grinding device for the inner and outer surfaces of a steel pipe, the number of input roller ways is 2-6, and the number of output roller ways is 2-6.
[0013] The synchronous grinding device for the inner and outer surfaces of steel pipes has the following advantages and positive effects:
[0014] (1) The synchronous grinding device for the inner and outer surfaces of steel pipes has the following advantages and positive effects:
[0015] (2) The synchronous grinding device for the inner and outer surfaces of steel pipes has the following advantages and positive effects: BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only for further understanding of the embodiments of the present application and form a part of the present application. For those skilled in the art, other drawings can also be obtained from these drawings without any creative effort. In the drawings:
[0017] Fig. 1 is a plane schematic view of the synchronous grinding device for the inner and outer surfaces of steel pipes of the present application;
[0018] Fig. 2 is a vertical schematic view of the pressure feeding mechanism in the synchronous grinding device for the inner and outer surfaces of steel pipes of the present application;
[0019] Fig. 3 is a cross-sectional schematic view of the grinding assembly in the synchronous grinding device for the inner and outer surfaces of steel pipes of the present application.
[0020] BRIEF DESCRIPTION OF DRAWINGS
[0021] 1-input roller, 2-output roller, 3-grinding assembly, 31-first grinding head, 32-second grinding head, 33-first suction block, 34-second suction block, 35-box, 4-sliding rail, 5-pressure feeding mechanism, 51-tube supporting wheel, 52-pressing wheel, 6-dust removal assembly, 61-first dust suction head, 62-second dust suction head, 63-third dust suction head, 64-jet nozzle, 65-pipe, 66-dust collector, 7-steel pipe. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model technical scheme will be described clearly and completely in combination with specific embodiments of the utility model and corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled person in the art without creative labor belong to the protection scope of the utility model.
[0023] As Figs. 1 to 3The utility model provides a kind of synchronous grinding device for the inner and outer surface of steel pipe, including multiple input roller way 1, multiple output roller way 2, be set to the slide rail 4 between input roller way 1 and output roller way 2, be set to the grinding assembly 3 on slide rail 4, be respectively set to the pressing mechanism 5 of grinding assembly 3 both sides, be set to the dust removal component 6 between grinding assembly 3 and output roller way 2, steel pipe 7 is set to input roller way 1 inside, in the embodiment, the function and structure of input roller way 1 and output roller way 2 are same, wherein, grinding assembly 3 includes being set to the first grinding head 31 of steel pipe 7 outside, being set to the second grinding head 32 of steel pipe 7 inside, be connected to the first suction block 33 of first grinding head 31, be connected to the second suction block 34 of second grinding head 32, box 35 is set to the outer periphery of steel pipe 7, since first grinding head 31 and second grinding head 32 are all set to box 35 inside, can reach the effect of little dust, little noise in production process, in the process that grinding assembly 3 grinds steel pipe 7, first grinding head 31 and second grinding head 32 are respectively tightly attached to steel pipe 7 outer wall and steel pipe 7 inner wall under the suction of first suction block 33 and second suction block 34, and first grinding head 31 inside and second grinding head 32 outside are all set to arc surface, and are all matched to steel pipe 7, first suction block 33, second suction block 34 are connected with drive unit (not shown in the drawing), first suction block 33, second suction block 34 can be driven along the circumferential rotation of steel pipe 7 by drive unit, and then drive first grinding head 31, second grinding head 32 along the circumferential rotation of steel pipe 7, and the inner wall and outer wall of steel pipe 7 are ground;Dust removal component 6 includes being set to the jet nozzle 64 of one end of steel pipe 7, being set to the first dust suction head 61 of the other end of steel pipe 7, and the dust collector 66 is connected with pipeline 65 by first dust suction head 61, and iron oxide scale particles are generated in the process that steel pipe 7 is ground, high-pressure air is sprayed at one end of steel pipe 7 using jet nozzle 64, first dust suction head 61 is arranged at the other end of steel pipe 7, dust is adsorbed using low pressure, and then transported to dust collector 66 inside through pipeline 65 for dust removal, and tail gas after dust removal is discharged up to standard, and dust removal component 6 is provided with lifting mechanism (not shown in the drawing), and the lifting of jet nozzle 64 and first dust suction head 61 can be realized by lifting mechanism, and jet nozzle 64 and first dust suction head 61 can also move along the axial direction of steel pipe 7;Pressing mechanism 5 includes multiple pipe supporting wheels 51 arranged below steel pipe 7, and multiple pressing wheels 52 arranged above steel pipe 7, in the process that steel pipe 7 passes through pressing mechanism 5, pipe supporting wheels 51 rotate, and pressing wheels 52 are responsible for applying pressure to steel pipe 7, and input roller way 1 and output roller way 2 can drive steel pipe 7 to displace along the axial direction.
[0024] Further, in the synchronous grinding device for the inner and outer surfaces of the steel pipe, the second dust collection head 62 and the third dust collection head 63 are arranged in the dust removal assembly 6, the first dust collection head 61 is arranged at the position opposite to one end of the steel pipe 7, the second dust collection head 62 is arranged at the position where the steel pipe 7 contacts the pressing wheel 52, the third dust collection head 63 is arranged at the position where the steel pipe 7 contacts the supporting wheel 51, the second dust collection head 62 and the third dust collection head 63 are connected to the dust collector 66 through the pipeline 65, and the lifting mechanism can realize the lifting of the second dust collection head 62 and the third dust collection head 63, of course, in the actual use process, the dust collection head can be arranged according to the dust and particles generated in the production process of the production line, so that the dust removal effect is achieved.
[0025] As a specific embodiment, in the synchronous grinding device for the inner and outer surfaces of the steel pipe, a plurality of grinding assemblies 3 are arranged on the sliding rail 4, the first grinding head 31 and the second grinding head 32 of each grinding assembly 3 are different in specification, more specifically, the grinding assembly 3 is divided into three gears of large, medium and small according to the different outer diameters of the corresponding steel pipe 7, and the outer diameter of the corresponding steel pipe 7 can be selected according to the actual use process.
[0026] As a specific embodiment, in the synchronous grinding device for the inner and outer surfaces of the steel pipe, the first grinding head 31 and the first suction block 33, and the second grinding head 32 and the second suction block 34 are detachably connected, so that the first grinding head 31 and the second grinding head 32 of different sizes and specifications can be replaced more efficiently.
[0027] As a specific embodiment, in the synchronous grinding device for the inner and outer surfaces of the steel pipe, a material turning mechanism (not shown in the figure) is arranged on one side of the steel pipe 7, and the steel pipe 7 is moved to the next station through the cooperation of the material turning mechanism and the output roller 2 after the grinding of the steel pipe 7 is completed.
[0028] As a specific embodiment, in the synchronous grinding device for the inner and outer surfaces of the steel pipe, the number of input roller 1 is 2-6, and the number of output roller 2 is 2-6, more specifically, the number of input roller 1 and output roller 2 is 2, of course, in the actual use process, the number of input roller 1 and output roller 2 needs to be set according to the specific working conditions such as the specification and size of the steel pipe 7.
[0029] As a specific embodiment, in the synchronous grinding device for the inner and outer surfaces of the steel pipe, the first grinding head 31 and the second grinding head 32 can adopt steel brushes, louver blades, grinding wheels and other polishing materials, of course, the specific material of the first grinding head 31 and the second grinding head 32 needs to be set according to the specific working conditions such as the material and performance of the steel pipe 7 in the actual use process.
[0030] As an embodiment, a synchronous grinding method for the inner and outer surfaces of a steel pipe is implemented by using the synchronous grinding device described above, and specifically includes the following steps:
[0031] Step 1: Place the steel pipe 7 in the input roller 1, and drive the input roller 1 and the output roller 2 by the connected motor. Drive the input roller 1 to make the steel pipe 7 enter the pressing mechanism 5.
[0032] Step 2: One end of the steel pipe 7 gradually enters the grinding assembly 3 through the pressing mechanism 5, and the pipe body is inserted between the first grinding head 31 and the second grinding head 32. With the driving of the input roller 1, the steel pipe 7 enters the designated position in the grinding assembly 3, and the input roller 1 stops driving. During this process, the pipe supporting wheel 51 can rotate, and the pressing wheel 52 applies pressure to the steel pipe 7.
[0033] Step 3: The lifting mechanism controls the air jet nozzle 64 and the first dust suction head 61 to be lifted close to both ends of the steel pipe 7, and simultaneously starts the air jet nozzle 64 and the first dust suction head 61. Then the driving unit drives the first suction block 33 and the second suction block 34 to rotate along the circumference of the steel pipe 7, thereby driving the first grinding head 31 and the second grinding head 32 to rotate along the circumference of the steel pipe 7, and synchronously grinding a part of the inner wall and the outer wall of the steel pipe 7 in the grinding assembly 3.
[0034] Step 4: After the inner wall and the outer wall of the steel pipe 7 are ground, the driving unit stops driving, the lifting mechanism controls the air jet nozzle 64 and the first dust suction head 61 to be lifted away from both ends of the steel pipe 7, to ensure that the air jet nozzle 64 and the first dust suction head 61 do not affect the transportation of the steel pipe 7. Then the input roller 1 continues to drive the steel pipe 7 to displace along the axial direction, and the ungrounded part of the steel pipe 7 is positioned in the grinding assembly 3. Then repeat the above step 3 and this step to grind the ungrounded part of the steel pipe 7, until the inner wall and the outer wall of the steel pipe 7 are completely ground. After grinding, the pressing wheel 52 is lifted, and the steel pipe 7 is driven out by the output roller 2.
[0035] As a specific embodiment, in the above-mentioned synchronous grinding method, after the steel pipe 7 passes through the grinding assembly 3 and the pressing mechanism 5, it is inserted into the output roller 2. At this time, the steel pipe 7 is driven by the input roller 1 and the output roller 2. When the steel pipe 7 just passes through the input roller 1 and does not contact the output roller 2, it is driven by the input roller 1. When the steel pipe 7 is separated from the input roller 1 and only contacts the output roller 2, it is driven by the output roller 2.
[0036] As a specific embodiment, in the above-mentioned synchronous grinding method, the dust and particles sucked by the first dust suction head 61 are transported to the dust collector 66 through the pipeline 65 for filtration. Similarly, the second dust suction head 62 and the third dust suction head 63 also process the sucked dust and particles in this way.
[0037] As a specific embodiment, in the above synchronous grinding method, the grinding assembly 3 provided with the first grinding head 31 and the second grinding head 32 of different specifications can be prepared in advance, and when the steel pipe 7 needs to be ground according to different specifications, the existing grinding assembly 3 is slid off the production line from the slide rail 4, and the grinding assembly 3 to be replaced is slid to the corresponding position of the production line through the slide rail 4 and is fixed. In this way, the adaptability of the whole device is greatly improved.
[0038] As an embodiment, another synchronous grinding method for the inner and outer surfaces of a steel pipe is implemented by using the above synchronous grinding device, and specifically includes the following steps:
[0039] Step 1: Place the steel pipe 7 on the input roller 1, and the input roller 1 and the output roller 2 are driven by the connected motor. The steel pipe 7 is driven to enter the pressing mechanism 5 through the input roller 1;
[0040] Step 2: One end of the steel pipe 7 gradually enters the grinding assembly 3 through the pressing mechanism 5. During this process, the pipe supporting wheel 51 can rotate, and the pressing wheel 52 applies pressure to the steel pipe 7. The pipe body of the steel pipe 7 is inserted between the first grinding head 31 and the second grinding head 32. At the same time, the lifting mechanism controls the air jet nozzle 64 and the first dust suction head 61 to be lifted close to the two ends of the steel pipe 7, and simultaneously starts the air jet nozzle 64 and the dust suction head. The air jet nozzle 64 and the dust suction head move axially synchronously with the movement of the steel pipe 7;
[0041] Step 3: Then the driving unit drives the first suction block 33 and the second suction block 34 to rotate circumferentially along the steel pipe 7, thereby driving the first grinding head 31 and the second grinding head 32 to rotate circumferentially along the steel pipe 7. The inner wall and the outer wall of the steel pipe 7 located between the first grinding head 31 and the second grinding head 32 are simultaneously ground. With the driving of the input roller 1, the grinding assembly 3 grinds the part of the steel pipe 7 that has not been ground, until the inner wall and the outer wall of the steel pipe 7 are completely ground. After the grinding is completed, the driving unit stops driving, the pressing wheel 52 is lifted, and the steel pipe 7 is driven out by the output roller 2.
[0042] In summary, compared with the prior art, the synchronous grinding device for the inner and outer surfaces of a steel pipe has the following advantages and positive effects:
[0043] (1) The device realizes synchronous grinding of the inner surface and the outer surface of the steel pipe 7 through the first grinding head 31 and the second grinding head 32, greatly improving the grinding efficiency. The first grinding head 31 and the second grinding head 32 are both arranged in the closed box 35, which can achieve the effect of less dust and less noise during production, has good practicability, and can quickly replace the corresponding grinding assembly 3 according to different sizes and specifications of the steel pipe 7, and has good adaptability;
[0044] (2) The device can adsorb the iron scale particles and other dust generated in the grinding process through the high-pressure air nozzle 64 and multiple low-pressure dust suction heads arranged at the steel pipe 7, and transport them to the dust collector 66 through the pipeline 65 for dust removal, so that the tail gas after dust removal can be discharged in accordance with the standard, the dust generated in the grinding process of the steel pipe 7 is reduced, and the device has good environmental protection.
[0045] It should be noted that, in this paper, unless otherwise specified and limited, the term "connection" or its synonyms should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, and those skilled in the art can understand the specific meaning of the above-mentioned term in the utility model according to the specific situation. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. At the same time, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. In addition, "front", "back", "left", "right", "up", "down" in this paper are referred to the placement state shown in the drawings.
[0046] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.
Claims
1. A device for synchronous grinding of the inner and outer surfaces of a steel pipe, characterized in that, The application relates to a steel pipe grinding device, which comprises a plurality of input roller tables, a plurality of output roller tables, a slide rail arranged between the input roller tables and the output roller tables, a grinding assembly arranged on the slide rail, a pressing mechanism arranged on both sides of the grinding assembly, and a dust removal assembly arranged between the grinding assembly and the output roller tables. The grinding assembly comprises a first grinding head arranged outside the steel pipe, a second grinding head arranged inside the steel pipe, a first suction block connected to the first grinding head, a second suction block connected to the second grinding head, and a box sleeved on the outer periphery of the steel pipe; the inner side of the first grinding head and the outer side of the second grinding head are both arranged as arc surfaces and matched with the steel pipe; the first suction block and the second suction block are connected with a driving unit, and the first suction block and the second suction block can be driven to rotate along the circumferential direction of the steel pipe through the driving unit. The dust removal assembly comprises a jet nozzle arranged at one end of the steel pipe and a first dust suction head arranged at the other end of the steel pipe; the first dust suction head is connected with a dust collector through a pipeline; the dust removal assembly is provided with a lifting mechanism, and the jet nozzle and the first dust suction head can be lifted through the lifting mechanism. The pressing mechanism comprises a plurality of pipe supporting wheels arranged below the steel pipe and a plurality of pressing wheels arranged above the steel pipe; the input roller tables and the output roller tables can drive the steel pipe to axially displace.
2. The apparatus for synchronous grinding of the inner and outer surfaces of a steel pipe according to claim 1, wherein The dust removal assembly is provided with a second dust suction head and a third dust suction head; the first dust suction head is arranged opposite to one end of the steel pipe; the second dust suction head is arranged at the position where the steel pipe contacts the pressing wheel; the third dust suction head is arranged at the position where the steel pipe contacts the pipe supporting wheel; the second dust suction head and the third dust suction head are connected with the dust collector through the pipeline; and the second dust suction head and the third dust suction head can be lifted through the lifting mechanism.
3. The apparatus for synchronous grinding of the inner and outer surfaces of a steel pipe according to claim 1, wherein The slide rail is provided with a plurality of grinding assemblies, and the first grinding head and the second grinding head of each grinding assembly are different in specification.
4. The apparatus for synchronous lapping of the inner and outer surfaces of a steel pipe according to claim 1, wherein The first grinding head and the first suction block and the second grinding head and the second suction block are detachably connected.
5. The apparatus for synchronous lapping of the inner and outer surfaces of a steel pipe according to claim 1, wherein The steel pipe is provided with a material overturning mechanism on one side.
6. The apparatus for synchronous lapping of the inner and outer surfaces of a steel pipe according to claim 1, wherein The number of the input roller tables is 2-6, and the number of the output roller tables is 2-6.