Pipe wall polishing device

Abstract

The utility model discloses a pipe wall polishing device, which relates to the technical field of polishing, is arranged between two sets of polishing equipment, and comprises a power mechanism arranged on a mounting frame and comprising a first power assembly and a second power assembly, the first power assembly comprises a first motor and a rotating rod connected with the first motor, and two raised lines are arranged on the outer wall of the rotating rod; the position switching mechanism comprises a base plate, two first gears and a sliding plate, the inner ends of the base plate and the sliding plate are rotationally matched with the rotating rod, a flat plate perpendicular to the base plate is arranged at the outer end of the base plate, a cylinder is arranged on the outer side of the flat plate and used for installing a pipe, and a clamping plate perpendicular to the sliding plate is arranged at the outer end of the sliding plate and used for fixing the outer wall of the pipe. Wherein one first gear is coaxially arranged on the rotating rod, one side of the other first gear is rotationally connected to the base plate, the other side of the other first gear is in threaded connection to the sliding plate through a screw, a sawtooth ring is arranged on the periphery of the inner end of the sliding plate and is coaxial with the rotating rod, and the second power assembly is used for rotating the sawtooth ring. According to the scheme, the pipe can be automatically switched between two sets of grinding equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding, in particular to a pipe wall grinding device. Background Art

[0002] Air cooler is abbreviated as air cooler, which is a heat exchanger that uses air to cool hot fluid. Air cooler is mainly composed of finned tubes, brackets and fans. Hot fluid flows in the finned tubes, and air blows outside the finned tubes. The air used is usually supplied by the fan. The hot fluid in the tube exchanges heat with the air through the tube wall and fins. Since the heat transfer coefficient on the air side is very small, the role of the fins is to increase the heat exchange area on the air side outside the tube and improve the heat exchange effect.

[0003] After the fin tube processing is completed, the inner and outer walls of the tube need to be polished. The polished fin tube is conducive to reducing the surface roughness and making the heat exchange more uniform and efficient. The problem is: the fin tube needs to be polished using the inner wall polishing equipment and the outer wall polishing equipment. When polishing, the staff first transfers the fin tube to the inner wall polishing equipment; after the inner wall polishing is completed, the fin tube is removed and then transferred to the outer wall polishing equipment for polishing. This method requires frequent installation-removal-transfer of fin tubes-installation. This solution designs a tube wall polishing device that can automatically switch the fin tube between the two sets of polishing equipment. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a pipe wall grinding device which can automatically switch the pipe between two sets of grinding equipment.

[0005] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0006] A pipe wall grinding device is arranged between two sets of grinding equipment and comprises a power mechanism and a plurality of position conversion mechanisms.

[0007] The power mechanism is arranged on the mounting frame, and includes a first motor assembly and a second power assembly. The first motor assembly includes a first motor and a rotating rod connected to the output shaft thereof, and the outer wall of the rotating rod is provided with two convex strips;

[0008] The position conversion mechanism includes a base plate, two gears and a slide plate. The inner ends of the base plate and the slide plate are both rotatably matched with the rotating rod. The outer end of the base plate is provided with a plate perpendicular to it. A cylinder is provided on the outer side of the plate for installing the pipe. The outer end of the slide plate is provided with a clamping plate perpendicular to it for fixing the outer wall of the pipe. The two gears are meshed with each other, one of which is coaxially arranged on the rotating rod, and one side of the other gear is rotatably connected to the base plate, and the other side is threadedly connected to the slide plate through a screw rod. A serrated ring is provided on the outer periphery of the inner end of the slide plate or the inner end of the base plate, and the serrated ring is coaxial with the rotating rod. The second power component is used to rotate the serrated ring.

[0009] Furthermore, the second power assembly is arranged below the first motor assembly, including a second motor, a plurality of gears 2 and a smooth rod. The smooth rod is rotatably arranged on the mounting frame, one end of which is connected to the output shaft of the second motor. A plurality of gears 2 are coaxially arranged on the smooth rod, and the gears 2 are meshed with the corresponding serrated ring.

[0010] Furthermore, the mounting frame includes two vertical plates and two horizontal plates arranged between the two vertical plates. The two ends of the rotating rod are respectively rotatably arranged on the two vertical plates. The two horizontal plates are symmetrical about the rotating rod. The bottom surfaces of the base plate and the slide plate are both close to the horizontal plates.

[0011] Furthermore, the mounting frame also includes a plurality of semicircular rings arranged on the transverse plate, the semicircular rings are opened downward, arc grooves are arranged on the semicircular rings, and a guide column is arranged at one end of the flat plate away from the slide plate, and the guide column rotates to cooperate with the arc groove.

[0012] The beneficial effects of the utility model are: the structure is ingenious, and the position of the clamp can be controlled by the first motor component so that the fin tube can be fixed by the clamp; the entire position conversion mechanism and the fin tube thereon can be flipped to another set of grinding equipment by the second power component, thereby realizing automatic conversion of the fin tube between the two sets of grinding equipment, and there is no need for frequent manual removal, transportation and installation of the fin tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A top view of the pipe wall grinding device is shown;

[0014] Figure 2 The structure diagram of the pipe wall grinding device is shown;

[0015] Figure 3 A front view of a pipe wall grinding device is shown. DETAILED DESCRIPTION

[0016] like Figure 1 As shown, this embodiment provides a tube wall grinding device, which is arranged between two sets of grinding equipment. The two sets of grinding equipment are respectively a tube inner wall grinding device and a tube outer wall grinding device. Both sets of equipment belong to the prior art. Their structures are not shown in the drawings, and their structures are not described in detail here. The technical problem to be solved by this embodiment is that the fin tube can be automatically switched between the two sets of grinding equipment, saving the time consumed by removing, transporting and installing the fin tube. The device includes a power mechanism and two position conversion mechanisms 1.

[0017] Specifically, Figure 1 , Figure 3As shown, the power mechanism is arranged on the mounting frame 3, and the power mechanism includes a first motor component 21 and a second power component 22. The first motor component 21 includes a first motor 211 and a rotating rod 212. The end of the rotating rod 212 is rotatably connected to the mounting frame 3, one end of the rotating rod 212 is connected to the output shaft of the first motor 211, and two convex strips 213 are symmetrically arranged on the outer wall of the rotating rod 212. The second power component 22 is arranged below the first motor component 21, and the second power component 22 includes a second motor 221, two gears 222 and a smooth rod 223. The end of the smooth rod 223 is rotatably connected to the mounting frame 3, one end of the smooth rod 223 is connected to the output shaft of the second motor 221, and the two gears 222 are coaxially fixed to the smooth rod 223.

[0018] Specifically, Figure 1-Figure 3 As shown, two position conversion mechanisms 1 are arranged in an array along the long axis of the rotating rod 212, each position conversion mechanism 1 includes a base plate 11, two gears 12, a slide plate 13 and a screw 14, the inner ends of the base plate 11 and the slide plate 13 are both rotatably matched with the rotating rod 212, the outer end of the base plate 11 is provided with a plate 111 perpendicular to it, the outer side of the plate 111 is provided with a cylinder 112, the cylinder 112 is used to install the fin tube, the outer end of the slide plate 13 is provided with a clamping plate 131 perpendicular to it, the clamping plate 131 faces the fin tube and is used to fix the outer wall of the fin tube, the two gears 12 are meshed with each other, and one of the gears 12 is meshed with each other. 12 is coaxially fixed on the rotating rod 212, one side of another gear 12 is rotatably connected to the base plate 11, and the other side is threadedly connected to the slide plate 13 through a screw rod 14, and a serrated ring 132 is fixedly arranged on the inner end of the slide plate 13 or the outer periphery of the inner end of the base plate 11. In the drawings of the present embodiment, the serrated ring 132 is arranged on the outer periphery of the inner end of the slide plate 13, the serrated ring 132 is coaxial with the rotating rod 212, and the gear 222 is meshed with the corresponding serrated ring 132. The second power assembly 22 is used to rotate the serrated ring 132 to flip the fin tube from one set of grinding equipment to another set of grinding equipment.

[0019] Here’s how it works:

[0020] The finned tube is installed on the cylinder 112, and the first motor 211 drives the rotating rod 212. Since the inner end of the base plate 11 rotates and fits with the rotating rod 212, the base plate 11 will not rotate with the rotating rod 212. Since one of the gears 12 is coaxially fixed to the rotating rod 212, the gear 12 will rotate with the rotating rod 212. Since the two gears 12 are meshed with each other, the other gear 12 and the screw 14 thereon are prompted to rotate. Since the inner end of the slide plate 13 rotates and fits with the rotating rod 212, and the slide plate 13 is threadedly connected to the screw 14, when the screw 14 rotates, the slide plate 13 and the clamping plate 131 thereon are prompted to move toward the direction of the finned tube until the clamping plate 131 fixes the outer wall of the finned tube. After the finned tube is fixed, the grinding head of the tube inner wall grinding equipment is inserted into the inside of the finned tube, and the grinding head rotates while moving along the long axis of the finned tube, thereby completing the grinding of the inner wall of the finned tube.

[0021] After the inner wall of the fin tube is polished, the second motor 221 drives the smooth rod 223, and under the meshing action of the gear 222 and the serrated ring 132, the position conversion mechanism 1 is prompted to slowly rotate 180° around the rotating rod 212. During the rotation of the position conversion mechanism 1, since the gear 12 on the rotating rod 212 is fixed, the other gear 12 rotates around the rotating rod 212 in a large circle while it itself rotates, thereby prompting the slide plate 13 and the clamping plate 131 thereon to move away from the fin tube. In order to prevent the slide plate 13 from falling off the screw 14, a baffle can be set at the outer end of the screw 14.

[0022] After the position conversion mechanism 1 slowly rotates 180° around the rotating rod 212, the clamping plate 131 has been separated from the fin tube, and the clamping mechanism of the tube outer wall grinding device clamps the other end of the fin tube and separates it from the cylinder 112, and then rotates the fin tube and grinds its outer wall.

[0023] More specifically, Figure 1 , Figure 2 As shown, the mounting frame 3 includes two vertical plates 31 and two horizontal plates 32 arranged between the two vertical plates 31. The two ends of the rotating rod 212 are respectively rotatably arranged on the two vertical plates 31. The two horizontal plates 32 are symmetrical about the rotating rod 212. The bottom surfaces of the base plate 11 and the slide plate 13 are both close to the horizontal plates 32. The purpose of this design is to increase the structural stability.

[0024] More specifically, Figure 2As shown, the mounting frame 3 further includes two semicircular rings 33, the openings of the semicircular rings 33 are arranged downward, the two ends of the semicircular rings 33 are respectively arranged at the tops of the two horizontal plates 32, the semicircular rings 33 are provided with arc grooves 331, the center of the arc grooves 331 is located on the axis of the rotating rod 212, and the end of the flat plate 111 away from the slide plate 13 is provided with a guide column 113, the guide column 113 is rotatably matched with the arc groove 331, in order to increase stability, a stopper is provided at the outer end of the guide column 113, and the inner wall of the stopper is close to the semicircular ring 33. When the position conversion mechanism 1 rotates 180° around the rotating rod 212, the guide column 113 moves along the arc groove 331.

[0025] The above embodiments are only used to illustrate the technical ideas and features of the utility model, and are not intended to be the only or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A pipe wall grinding device, characterized in that: It is arranged between two sets of grinding equipment and includes a power mechanism and a plurality of position conversion mechanisms (1); The power mechanism is arranged on the mounting frame (3), and comprises a first power assembly (21) and a second power assembly (22); the first power assembly (21) comprises a first motor (211) and a rotating rod (212) connected to the output shaft thereof; the outer wall of the rotating rod (212) is provided with two convex strips (213); The position conversion mechanism (1) comprises a base plate (11), two gears (12) and a slide plate (13). The inner ends of the base plate (11) and the slide plate (13) are both rotatably matched with a rotating rod (212). The outer end of the base plate (11) is provided with a plate (111) perpendicular thereto. The outer side of the plate (111) is provided with a cylinder (112) for mounting a pipe. The outer end of the slide plate (13) is provided with a clamping plate (131) perpendicular thereto for fixing the outer wall of the pipe. The two gears (12) are meshed with each other. One of the gears (12) is coaxially arranged on the rotating rod (212). One side of the other gear (12) is rotatably connected to the base plate (11), and the other side is threadably connected to the slide plate (13) via a screw rod (14). A sawtooth ring (132) is provided on the outer periphery of the inner end of the slide plate (13) or the inner end of the base plate (11). The sawtooth ring (132) is coaxial with the rotating rod (212). The second power assembly (22) is used to rotate the sawtooth ring (132).

2. The pipe wall grinding device according to claim 1, characterized in that: The second power assembly (22) is arranged below the first motor assembly (21), and comprises a second motor (221), a plurality of second gears (222) and a smooth rod (223); the smooth rod (223) is rotatably arranged on the mounting frame (3), one end of which is connected to the output shaft of the second motor (221); the plurality of second gears (222) are coaxially arranged on the smooth rod (223), and the second gears (222) are meshed with corresponding sawtooth rings (132).

3. The pipe wall grinding device according to claim 1, characterized in that: The mounting frame (3) comprises two vertical plates (31) and two horizontal plates (32) arranged between the two vertical plates (31). The two ends of the rotating rod (212) are respectively rotatably arranged on the two vertical plates (31). The two horizontal plates (32) are symmetrical about the rotating rod (212). The bottom surfaces of the base plate (11) and the sliding plate (13) are both in close contact with the horizontal plates (32).

4. The pipe wall grinding device according to claim 3, characterized in that: The mounting frame (3) further comprises a plurality of semicircular rings (33) arranged on the transverse plate (32), the semicircular rings (33) being arranged with their openings facing downwards, and arcuate grooves (331) being arranged on the semicircular rings (33). A guide column (113) is arranged on one end of the flat plate (111) away from the slide plate (13), and the guide column (113) is rotatably matched with the arcuate groove (331).

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