A ductile cast iron pipe socket polishing device

Abstract

The utility model relates to nodular cast iron pipe related technical field, especially nodular cast iron pipe socket polishing device, include: polishing assembly, polishing assembly includes: support plate is set up one end in support frame top, polishing roller is symmetrical to one side of support plate, adjusting spare is set up in the top of support plate, the top of support frame is provided with clamping assembly, and clamping assembly includes: base is set up in the top of support frame and is located one side of support plate, rotating rod is penetrated in the outside of base, first screw is symmetrical to the outside of rotating rod and is located the inside of base, and first screw is provided with moving plate, and is penetrated in the top of base, rotating roller is penetrated in moving plate, support is set up in the top of base, and abutting pressure roller is set up in the inside bottom of support, and electric push rod is set up between abutting pressure roller and support, and the different size nodular cast iron pipe can be polished through clamping assembly, and the flexibility and practicality of nodular cast iron pipe socket polishing device have been increased.

Description

Technical Field

[0001] This utility model relates to the technical field of ductile iron pipes, and in particular to a grinding device for the socket of ductile iron pipes. Background Technology

[0002] Cast iron pipes are essentially ductile iron pipes. They are called ductile iron pipes because they possess the essence of iron and the properties of steel. In ductile iron pipes, the graphite exists in a spherical form, typically with a size of 6-7 grades. Quality requirements dictate that the spheroidization grade of the cast iron pipe be controlled at 1-3 grades, with a spheroidization rate ≥80%. This significantly improves the material's mechanical properties, resulting in a combination of iron's essence and steel's properties. After annealing, the microstructure of ductile iron pipes consists of ferrite with a small amount of pearlite, exhibiting excellent mechanical properties. Therefore, they are also called cast iron pipes. Characteristics include: possessing the essence of iron and the properties of steel; excellent corrosion resistance; good ductility; and easy installation. They are mainly used for water supply and gas transmission in municipal and industrial enterprises.

[0003] Existing iron pipe socket grinding devices use an electric actuator to press a pressure seat onto the upper side of the steel pipe, causing the upper and lower grinding rollers to contact the inner and outer sides of the pipe opening. Then, simply starting the motor drives the rollers to rotate, and the motor then rotates the grinding rollers, allowing for simultaneous grinding of the inner and outer sides of the pipe opening during rotation. However, the concave design of the rotating support and pressure seat has limitations in adapting to the curvature of the steel pipe. When the diameter of the steel pipe changes significantly, the contact area between the pressure roller and the steel pipe may be insufficient, potentially leading to uneven clamping force and axial displacement of the steel pipe during rotation, thus affecting the stability of the steel pipe opening during grinding. Utility Model Content

[0004] The purpose of this invention is to provide a grinding device for ductile iron pipe sockets to solve the problems mentioned in the background art.

[0005] The technical solution adopted in this utility model is:

[0006] A grinding device for ductile iron pipe sockets includes: a grinding assembly, the grinding assembly comprising: a support plate disposed at one end of a support frame; a grinding roller symmetrically disposed on one side of the support plate; an adjusting member disposed on the top of the support plate and passing through the support plate and the grinding roller; a clamping assembly disposed on the top of the support frame and located on one side of the support plate, the clamping assembly comprising: a base disposed on the top of the support frame and located on one side of the support plate; a rotating rod passing through the outer side of the base; a first thread symmetrically disposed on the outer side of the rotating rod and located inside the base, a movable plate disposed on the first thread and passing through the top of the base; a rotating roller passing through the movable plate; a bracket disposed on the top of the base; a pressure roller disposed on the inner bottom of the bracket; and an electric push rod disposed between the pressure roller and the bracket.

[0007] Optionally, one end of the rotating roller is provided with a sliding plate, and the top of the base is provided with a first groove that cooperates with the sliding plate.

[0008] Optionally, the rotating rod has symmetrical limiting plates that cooperate with the moving plate and are located inside the base.

[0009] Optionally, the outer side of the rotating rod is provided with a second thread, and a threaded sleeve is provided on the second thread and located on the outer side wall of the base.

[0010] Optionally, a pressing plate is provided on one side of the threaded sleeve, and an anti-slip pad is provided between the pressing plate and the outer wall of the base.

[0011] Optionally, the bottom of the bracket is provided with a slider, and the top of the base is provided with a second groove that cooperates with the slider.

[0012] Optionally, the outer wall of the base and the slider are provided with insertion holes, and the insertion holes are provided with pins.

[0013] Optionally, a baffle that cooperates with the first sliding groove is provided on one side of the base.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The positions of the two sets of grinding rollers are adjusted by adjusting the adjustment mechanism. Then, the rotating rod is rotated, and the rotating rod pushes the rotating rollers on the moving plate to move towards or relative to each other through the first thread, thereby adjusting the distance between the rotating rollers. Ductile iron pipes of different sizes are placed on the rotating rollers after the distance is adjusted, so that the two sets of rotating rollers support the outer side of the ductile iron pipe. Then, the electric actuator is activated so that the pressure roller presses against the top of the central axis of the ductile iron pipe, clamping the rotating roller. This allows the ductile iron pipe socket grinding device to grind ductile iron pipes of different sizes, increasing the flexibility and practicality of the ductile iron pipe socket grinding device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure in this application;

[0018] Figure 2 This is a schematic diagram of the rotating rod in this application;

[0019] Figure 3 for Figure 1 Enlarged diagram of point A in the middle.

[0020] Figure label:

[0021] 1. Grinding assembly; 11. Support frame; 12. Support plate; 13. Grinding roller; 14. Adjusting component;

[0022] 2. Clamping assembly; 21. Base; 22. Rotating roller; 23. Rotating rod; 231. Limiting plate; 24. First thread; 241. Moving plate; 242. Slide plate; 243. First slide groove; 25. Second thread; 251. Threaded sleeve; 252. Extrusion plate; 253. Anti-slip pad; 26. Bracket; 261. Pressure roller; 262. Electric actuator; 27. Slider; 271. Second slide groove; 28. Pin; 281. Insertion hole; 29. ​​Baffle. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Given that the concave design of the rotating support and the pressure seat in the current technology has certain limitations in adapting to the curvature of the steel pipe, when the diameter of the steel pipe changes significantly, the contact area between the clamping roller and the steel pipe may be insufficient, which may lead to uneven clamping force and cause axial displacement of the steel pipe when it rotates, thereby affecting the stability of the steel pipe end during grinding.

[0026] like Figure 1-3As shown, this utility model embodiment provides a grinding device for ductile iron pipe sockets, including: a grinding assembly 1, which includes: a support plate 12 disposed at one end of the top of a support frame 11; a grinding roller 13 symmetrically disposed on one side of the support plate 12; an adjusting member 14 disposed on the top of the support plate 12 and passing through the support plate 12 and the grinding roller 13; and a clamping assembly 2 disposed on the top of the support frame 11 and located on one side of the support plate 12, the clamping assembly 2 including: a base 21 disposed on the support frame 11. The top of the base 21 is located on one side of the support plate 12; the rotating rod 23 passes through the outer side of the base 21; the first thread 24 is symmetrical to the outer side of the rotating rod 23 and is located inside the base 21, and a movable plate 241 is provided on the first thread 24 and passes through the top of the base 21; the rotating roller 22 passes through the movable plate 241; the bracket 26 is located on the top of the base 21; the pressure roller 261 is located at the bottom inner side of the bracket 26; and the electric push rod 262 is located between the pressure roller 261 and the bracket 26.

[0027] In use, the ductile iron pipe is placed on the rotating roller 22. The adjusting component 14 is activated to push the two sets of grinding rollers 13 into the inner and outer sides of the pipe socket of the ductile iron pipe. The electric actuator 262 is activated so that the pressure roller 261 presses against the top of the central axis of the ductile iron pipe. Then, the grinding rollers 13 and the rotating roller 22 are activated. The rotating roller 22 pushes the ductile iron pipe to rotate and, together with the two sets of grinding rollers 13, grinds the inner and outer sides of the pipe socket of the ductile iron pipe. When grinding ductile iron pipes of other diameters, the position of the two sets of grinding rollers 13 is first adjusted by the adjusting component 14 so that the position of the grinding rollers 13 is suitable for the corresponding diameter of the ductile iron pipe. Then, the rotating rod 23 is rotated, and the rotating rod 23 pushes the rotating rollers 22 on the moving plate 241 to move towards or relative to each other through the first thread 24, thereby adjusting the distance between the rotating rollers 22. Ductile iron pipes of different diameters are placed on the rotating rollers 22 after the distance is adjusted, so that the two sets of rotating rollers 22 support the outer side of the ductile iron pipe. Then, the electric actuator 262 is activated so that the pressure roller 261 presses against the top of the central axis of the ductile iron pipe, clamping the rotating rollers 22. This allows the ductile iron pipe socket grinding device to grind ductile iron pipes of different diameters, increasing the flexibility and practicality of the ductile iron pipe socket grinding device.

[0028] Specifically, in this application, "ductile iron pipes of different diameters" refers to ductile iron pipes with different diameters but the same wall thickness.

[0029] Specifically, the adjusting component 14 includes: a motor mounted on the top of the support plate 12; a threaded rod mounted on the output end of the motor; a moving block sleeved on the outside of the motor and passing through one side of the support plate 12; and an electric push rod positioned between the moving block and the grinding roller 13. The motor drives the threaded rod to rotate, and the rotating threaded rod moves the grinding roller 13 through the moving block, causing the grinding roller 13 to move to the height position of the ductile iron pipe of the corresponding diameter. The electric push rod then pushes the grinding roller 13 into the pipe socket of the ductile iron pipe, which is not shown in the accompanying drawings.

[0030] Specifically, the grinding roller 13 includes: a motor mounted on a movable block; and a friction wheel mounted on the output end of the motor. The motor drives the friction wheel to rotate, and the rotating friction wheel grinds the inner and outer sides of the ductile iron pipe socket.

[0031] Specifically, the rotating roller 22 includes: a motor disposed on one side of the moving plate 241, an active roller disposed at the output end of the motor and passing through the moving plate 241, and a driven roller disposed on another set of moving plates 241. The active roller is driven to rotate by the motor, and the rotating roller drives the ductile iron pipe and the driven roller to rotate.

[0032] Furthermore, a sliding plate 242 is provided at one end of the rotating roller 22, and a first groove 243 that matches the sliding plate 242 is provided on the top of the base 21 to support the rotating roller 22, thereby increasing the stability of the rotating roller 22 when it drives the ductile iron pipe to rotate and grind.

[0033] Furthermore, the rotating rod 23 has symmetrical limiting plates 231 that cooperate with the moving plate 241, and is located inside the base 21 to limit the moving plate 241 and prevent the two sets of moving plates 241 from disengaging from the first thread 24 when they move.

[0034] Furthermore, a second thread 25 is provided on the outer side of the rotating rod 23, and a threaded sleeve 251 is provided on the second thread 25 and located on the outer wall of the base 21. When the rotating rod 23 is rotated to adjust the distance between the rotating rollers 22, the threaded sleeve 251 is rotated. The rotating threaded sleeve 251 moves and presses against the outer wall of the base 21 through the second thread 25, thereby pressing and fixing the rotating rod 23, thus locking the rotating rod 23 and increasing the stability when the rotating rollers 22 drive the ductile iron pipe to rotate and grind.

[0035] Furthermore, a pressing plate 252 is provided on one side of the threaded sleeve 251, and an anti-slip pad 253 is provided between the pressing plate 252 and the outer wall of the base 21, which increases the area of ​​the threaded sleeve 251 pressing the outer wall of the base 21 and improves the anti-slip properties, thereby enhancing the stability of locking the rotating rod 23.

[0036] Furthermore, a slider 27 is provided at the bottom of the bracket 26, and a second sliding groove 271 that matches the slider 27 is provided at the top of the base 21, so that the bracket 26 and the base 21 are slidably connected, and the slider 27 and the second sliding groove 271 are interference fit, which facilitates pushing the bracket 26 to move on the top of the base 21.

[0037] Furthermore, the outer wall of the base 21 and the slider 27 are provided with a socket 281, and a pin 28 is provided on the socket 281. When the support 26 is pushed to move, the pin 28 is inserted into the socket 281 to fix the slider 27 in the second slide groove 271.

[0038] Furthermore, a baffle 29 is provided on one side of the base 21 to cooperate with the first slide groove 243, which blocks the iron filings generated during the grinding of the ductile iron pipe socket, preventing the iron filings from falling into the first slide groove 243 and affecting the movement of the slide plate 242 in the first slide groove 243.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A grinding device for ductile iron pipe sockets, comprising: A polishing assembly (1), the polishing assembly (1) comprising: A support frame (11) has a support plate (12) at one of its top ends; Grinding roller (13) is symmetrical to one side of the support plate (12); An adjusting member (14) is disposed on the top of the support plate (12) and extends through the support plate (12) and the grinding roller (13); The characteristic feature is that a clamping assembly (2) is provided on the top of the support frame (11) and located on one side of the support plate (12), the clamping assembly (2) comprising: The base (21) is disposed on the top of the support frame (11) and located on one side of the support plate (12); A rotating rod (23) extends through the outer side of the base (21); The first thread (24) is symmetrical to the outside of the rotating rod (23) and located inside the base (21). A movable plate (241) is provided on the first thread (24) and extends through the top of the base (21). A rotating roller (22) passes through the movable plate (241); A bracket (26) is disposed on top of the base (21); A pressure roller (261) is disposed at the bottom inner side of the bracket (26); An electric actuator (262) is disposed between the pressure roller (261) and the bracket (26).

2. The grinding device for ductile iron pipe sockets according to claim 1, characterized in that, One end of the rotating roller (22) is provided with a sliding plate (242), and the top of the base (21) is provided with a first groove (243) that cooperates with the sliding plate (242).

3. The grinding device for ductile iron pipe sockets according to claim 1, characterized in that, The rotating rod (23) has symmetrical limiting plates (231) that cooperate with the moving plate (241) and are located inside the base (21).

4. The grinding device for ductile iron pipe sockets according to claim 3, characterized in that, The rotating rod (23) has a second thread (25) on its outer side, and a threaded sleeve (251) is provided on the second thread (25) and located on the outer wall of the base (21).

5. The grinding device for ductile iron pipe sockets according to claim 4, characterized in that, A pressing plate (252) is provided on one side of the threaded sleeve (251), and an anti-slip pad (253) is provided between the pressing plate (252) and the outer wall of the base (21).

6. The grinding device for ductile iron pipe sockets according to claim 1, characterized in that, The bottom of the bracket (26) is provided with a slider (27), and the top of the base (21) is provided with a second groove (271) that cooperates with the slider (27).

7. The grinding device for ductile iron pipe sockets according to claim 6, characterized in that, The outer wall of the base (21) and the slider (27) are provided with a socket (281), and a pin (28) is provided on the socket (281).

8. A grinding device for ductile iron pipe sockets according to claim 2, characterized in that, A baffle (29) that cooperates with the first slide groove (243) is provided on one side of the base (21).

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