A ductile cast iron pipe inner wall polishing device

Abstract

The utility model discloses a nodular cast iron pipe inner wall polishing device, including the box, the box inner chamber top is equipped with the drive assembly, the box top is equipped with the fixed component, the box top and be located fixed component left side installation has the removal subassembly, the utility model relates to nodular cast iron pipe technical field, this nodular cast iron pipe inner wall polishing device, through using before placing the iron pipe in the fixed component, rotates the screw rod and makes the positioning spare down, thereby makes the iron pipe with the driven gear center shaft under the cooperation of the upper and lower fixing spare in the same position, thereby the convenient iron pipe rotation, the driving gear drives the driven gear to rotate under the limitation of guide rail no.

Description

Technical Field

[0001] This utility model relates to the field of ductile iron pipe technology, specifically a grinding device for the inner wall of ductile iron pipe. Background Technology

[0002] Ductile iron pipe is a type of cast iron pipe. In terms of quality, the spheroidization grade of the cast iron pipe must be controlled between 1 and 3, with a spheroidization rate ≥80%. This significantly improves the mechanical properties of the material, giving it the essence of iron and the performance of steel. Annealed ductile iron pipe has a microstructure of ferrite with a small amount of pearlite, exhibiting good mechanical properties, excellent corrosion resistance, good ductility, good sealing performance, and easy installation. It is mainly used for water supply, gas transmission, and oil transportation in municipal and industrial enterprises.

[0003] However, for large-diameter ductile iron pipes, the method of applying slurry to the inner surface of the pipe via centrifugation is unsatisfactory due to the large pipe size, resulting in an uneven cement inner surface and affecting its appearance and usability. Traditional industry methods use an electric motor-driven internal grinding wheel and rigid grinding rods to grind the cement inner surface. However, because rigid grinding rods cannot eliminate vibrations, this often results in an uneven internal grinding surface, which is even more pronounced for elliptical pipes, severely impacting the quality of the cement inner surface and potentially causing the pipe to be scrapped, resulting in unnecessary losses.

[0004] To address this issue, the present invention provides a grinding device for the inner wall of ductile iron pipes, which solves the aforementioned problems through a fixing component. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a grinding device for the inner wall of ductile iron pipes, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a grinding device for the inner wall of a ductile iron pipe, comprising a housing, a driving component installed at the top of the inner cavity of the housing, a fixing component installed at the top of the housing, and a moving component installed at the top of the housing and to the left of the fixing component.

[0007] The base plate is fixedly connected to the bottom of the box.

[0008] Preferably, the drive assembly includes a drive motor, the drive motor is fixedly connected to the top of the inner cavity of the housing, a rotating shaft is fixedly installed at the output end of the drive motor, a fixing plate is fixedly connected to the top of the inner cavity of the housing and to the left of the drive motor, the left end of the fixing plate is rotatably connected to the end of the rotating shaft, and a drive gear is fixedly connected to the rotating shaft.

[0009] Preferably, the fixing component includes a positioning plate, the top of the housing is fixedly connected to the positioning plate, the right end of the positioning plate is fixedly connected to a guide rail, a driven gear is sleeved on the guide rail, a through groove is opened on the top of the housing and on the right side of the positioning plate, the driving gear is located inside the through groove and is meshed with the driven gear.

[0010] Preferably, a limiting plate is fixedly connected to the right end of the driven gear, a screw is threadedly connected inside the limiting plate, and a positioning element is rotatably connected to the bottom end of the screw.

[0011] Preferably, the moving component includes a second guide rail, the second guide rail is fixedly connected to the top of the housing and to the left of the positioning plate, a slider is fixedly connected inside the second guide rail, and a cylinder is fixedly connected to the top of the housing and to the left of the second guide rail, with the output end of the cylinder fixedly connected to the left end of the slider.

[0012] Preferably, an electric push rod is fixedly connected inside the slider, a support plate is fixedly connected to the output end of the electric push rod, a grinding rod is fixedly connected to the top of the support plate, and a grinding wheel is fixedly connected to the right end of the grinding rod.

[0013] Preferably, the positioning plate and the driven gear are provided with through holes, and the through hole on the positioning plate is larger than the through hole on the driven gear.

[0014] Beneficial effects

[0015] This invention provides a grinding device for the inner wall of ductile iron pipes. Compared with the prior art, it has the following advantages:

[0016] (1) The ductile iron pipe inner wall grinding device uses a fixed component and a moving component to fix the iron pipe with a positioning component, and then rotates the iron pipe by the cooperation of the driving gear and the driven gear, thereby grinding the inside of the iron pipe, making the grinding wheel more stable during grinding and improving grinding efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of the external structure of this utility model;

[0018] Figure 2 This is a front view of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the fixing component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the fixing component of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the mobile component of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the slider of this utility model.

[0023] In the diagram: 1. Housing; 2. Base plate; 3. Drive assembly; 31. Drive motor; 32. Rotating shaft; 33. Drive gear; 34. Fixing plate; 4. Fixing assembly; 41. Positioning plate; 42. Guide rail one; 43. Driven gear; 44. Through slot; 45. Positioning component; 46. Limiting plate; 47. Screw; 5. Moving assembly; 51. Cylinder; 52. Guide rail two; 53. Slider; 54. Electric push rod; 55. Support plate; 56. Grinding rod; 57. Grinding wheel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Please see Figure 1-6 A grinding device for the inner wall of ductile iron pipe includes a housing 1, a driving component 3 installed on the top of the inner cavity of the housing 1, a fixing component 4 installed on the top of the housing 1, and a moving component 5 installed on the top of the housing 1 and to the left of the fixing component 4; and a base plate 2, which is fixedly connected to the bottom of the housing 1.

[0027] Furthermore, the drive assembly 3 includes a drive motor 31. The drive motor 31 is fixedly connected to the top of the inner cavity of the housing 1. A rotating shaft 32 is fixedly installed at the output end of the drive motor 31. A fixing plate 34 is fixedly connected to the top of the inner cavity of the housing 1 and to the left of the drive motor 31. The left end of the fixing plate 34 is rotatably connected to the end of the rotating shaft 32. A drive gear 33 is fixedly connected to the rotating shaft 32. When the drive assembly 31 is working, the drive gear 33 drives the driven gear 43 to rotate under the constraint of the guide rail 42, so that the iron pipe rotates, which facilitates the grinding of its interior.

[0028] Furthermore, the fixing component 4 includes a positioning plate 41. The positioning plate 41 is fixedly connected to the top of the housing 1. A guide rail 42 is fixedly connected to the right end of the positioning plate 41. A driven gear 43 is sleeved on the guide rail 42. A through groove 44 is opened on the top of the housing 1 and to the right of the positioning plate 41. The driving gear 33 is located inside the through groove 44 and is meshed with the driven gear 43. A limit plate 46 is fixedly connected to the right end of the driven gear 43. A screw 47 is threadedly connected inside the limit plate 46. A positioning element 45 is rotatably connected to the bottom end of the screw 47. Through holes are opened on the positioning plate 41 and the driven gear 43. The through hole on the positioning plate 41 is larger than the through hole on the driven gear 43. When the fixing component 4 is working, rotating the screw 47 causes the positioning element 45 to move down. Thus, with the cooperation of the upper and lower fixing elements 45, the iron pipe and the central axis of the driven gear 43 are in the same position, which facilitates the rotation of the iron pipe.

[0029] Furthermore, the moving component 5 includes a second guide rail 52. The second guide rail 52 is fixedly connected to the top of the housing 1 and to the left of the positioning plate 41. A slider 53 is fixedly connected inside the second guide rail 52. A cylinder 51 is fixedly connected to the top of the housing 1 and to the left of the second guide rail 52. The output end of the cylinder 51 is fixedly connected to the left end of the slider 53. An electric push rod 54 is fixedly connected inside the slider 53. A support plate 55 is fixedly connected to the output end of the electric push rod 54. A grinding rod 56 is fixedly connected to the top of the support plate 55. A grinding wheel 57 is fixedly connected to the right end of the grinding rod 56. When the moving component 5 is working, the cylinder 51 drives the slider 53 to slide inside the second guide rail 52, inserting the grinding wheel 57 into the iron pipe. The grinding position of the grinding wheel 57 is adjusted by the electric push rod 54 to prevent the grinding rod 56 from vibrating due to rotation, making the grinding wheel 57 more stable during grinding and improving grinding efficiency.

[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0031] Before use, the iron pipe is placed in the fixing component 4. When the fixing component 4 is working, the screw 47 is rotated to move the positioning part 45 downward. With the cooperation of the upper and lower fixing parts 45, the iron pipe and the central axis of the driven gear 43 are in the same position, which facilitates the rotation of the iron pipe. The driving component 31 is working, and the driving gear 33 drives the driven gear 43 to rotate under the limitation of the guide rail 1 42. The moving component 5 is working, and the cylinder 51 drives the slider 53 to slide inside the guide rail 2 52, inserting the grinding wheel 57 into the iron pipe. The grinding position of the grinding wheel 57 is adjusted by the electric push rod 54 to prevent the grinding rod 56 from vibrating due to rotation, so that the grinding wheel 57 is more stable during grinding and the grinding efficiency is improved.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for the inner wall of a ductile iron pipe, comprising a housing (1), characterized in that: A drive assembly (3) is installed on the top of the inner cavity of the box (1), a fixing assembly (4) is installed on the top of the box (1), and a moving assembly (5) is installed on the top of the box (1) and to the left of the fixing assembly (4). The bottom plate (2) is fixedly connected to the bottom of the box body (1).

2. The grinding device for the inner wall of ductile iron pipe according to claim 1, characterized in that: The drive assembly (3) includes a drive motor (31). The drive motor (31) is fixedly connected to the top of the inner cavity of the housing (1). A rotating shaft (32) is fixedly installed at the output end of the drive motor (31). A fixing plate (34) is fixedly connected to the top of the inner cavity of the housing (1) and to the left of the drive motor (31). The left end of the fixing plate (34) is rotatably connected to the end of the rotating shaft (32). A drive gear (33) is fixedly connected to the rotating shaft (32).

3. The grinding device for the inner wall of ductile iron pipe according to claim 2, characterized in that: The fixing component (4) includes a positioning plate (41). The top of the housing (1) is fixedly connected to the positioning plate (41). The right end of the positioning plate (41) is fixedly connected to a guide rail (42). A driven gear (43) is sleeved on the guide rail (42). A through groove (44) is opened on the top of the housing (1) and on the right side of the positioning plate (41). The driving gear (33) is located inside the through groove (44) and is meshed with the driven gear (43).

4. The grinding device for the inner wall of ductile iron pipe according to claim 3, characterized in that: The right end of the driven gear (43) is fixedly connected to a limiting plate (46), and a screw (47) is threaded inside the limiting plate (46). A positioning element (45) is rotatably connected to the bottom end of the screw (47).

5. The grinding device for the inner wall of a ductile iron pipe according to claim 3, characterized in that: The moving component (5) includes a second guide rail (52). The second guide rail (52) is fixedly connected to the top of the housing (1) and to the left side of the positioning plate (41). A slider (53) is fixedly connected inside the second guide rail (52). A cylinder (51) is fixedly connected to the top of the housing (1) and to the left side of the second guide rail (52). The output end of the cylinder (51) is fixedly connected to the left end of the slider (53).

6. The grinding device for the inner wall of a ductile iron pipe according to claim 5, characterized in that: An electric push rod (54) is fixedly connected inside the slider (53). A support plate (55) is fixedly connected to the output end of the electric push rod (54). A grinding rod (56) is fixedly connected to the top of the support plate (55). A grinding wheel (57) is fixedly connected to the right end of the grinding rod (56).

7. The grinding device for the inner wall of a ductile iron pipe according to claim 3, characterized in that: The positioning plate (41) and the driven gear (43) are provided with through holes, and the through hole on the positioning plate (41) is larger than the through hole on the driven gear (43).

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