Outer wall polishing device for stainless steel pipe

Abstract

The invention discloses an outer wall polishing device for a stainless steel pipe, which relates to the technical field of stainless steel pipe production and processing and comprises a base, a bracket, a polishing roller, a driving motor, a liquid storage tank and the stainless steel pipe, end tables and mounting arms are symmetrically arranged on the opposite faces between the two supports respectively, a liquid storage tank and a driving motor are fixed to the sides, away from each other, of the two supports respectively, an adapter is coaxially fixed to the end, away from the driving motor, of the end table, and a fixed connector is rotationally connected to the end, away from the end table, of the adapter. The side, close to the liquid storage tank, of the fixed connector fixedly communicates with a liquid pumping pipe, and a liquid supply pump is fixed to the end, located in the liquid storage tank, of the liquid pumping pipe. A liquid inlet is formed in the end table connected with the adapter; an elastic cylinder is coaxially fixed outside an opening in the side, away from the adapter, of the liquid inlet, and an opening in the end, away from the liquid inlet, of the elastic cylinder is fixed to the side wall, close to the driving motor, of the end table; the technical effect that the stainless steel pipe is cooled by cooling liquid in a closed environment, and therefore the polishing efficiency is improved is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel pipe production and processing, in particular to an outer wall polishing device for a stainless steel pipe. Background Art

[0002] Polishing of stainless steel pipe is an important process in stainless steel processing, which can not only improve the appearance quality of stainless steel pipe, but also enhance its corrosion resistance. When polishing stainless steel pipe, the stainless steel pipe is usually fixed on a rotating device, and the stainless steel pipe is clamped and arranged between polishing wheels or rotated by a rotating fixture. Rotating the stainless steel pipe can ensure uniform polishing process, avoid uneven polishing marks, and improve polishing efficiency and polishing quality. In the prior art, a Chinese patent with authorization announcement number CN110026836B discloses an outer wall polishing device of stainless steel pipe, including a shell, a bracket, a rotating base, a steel pipe clamp, a transmission shaft, a motor, a motor seat plate and a lifting cover. When polishing, the stainless steel pipe to be processed is clamped and fixed by the steel pipe clamp and driven to rotate by the motor, and the stainless steel pipe to be processed is located at the center of three polishing rollers distributed in a triangular shape. When rotating, the stainless steel pipe to be processed will have rapid friction with the roller surface of the polishing roller, thereby realizing the polishing of the stainless steel pipe by relative rolling between the polishing roller and the stainless steel pipe to be processed.

[0003] In the above-mentioned polishing device, since the stainless steel pipe can be polished on its entire surface by rotating a few times, its polishing efficiency is higher than the existing method of polishing by translating the polishing pad on the rotating stainless steel pipe surface, and it takes less time to polish a certain length of stainless steel pipe. However, due to the continuous friction between the stainless steel pipe and the polishing roller during the polishing process, the temperature of the stainless steel pipe is likely to rise. When the temperature of the stainless steel pipe rises to a certain degree, the steel pipe may be deformed to varying degrees under the action of the rotation torque of the end motor, thereby affecting the quality of the steel pipe, and in severe cases, may cause the steel pipe to be scrapped.

[0004] In the prior art, there is a method of cooling the surface of a stainless steel pipe by spraying coolant on the outside of the stainless steel pipe. However, the coolant is easy to splash around during the spraying process, wetting other external parts and easily causing damage to electrical parts. Alternatively, a shell that seals the entire device is required, but this occupies a large area and has a high cost of use, and the inside of the device shell still needs to be cleaned regularly. At the same time, a large amount of coolant remains on the surface of the stainless steel pipe, making it inconvenient for users to take and place the stainless steel pipe, and the surface of the stainless steel pipe is easy to slip during the grinding and polishing process, affecting the polishing efficiency. Summary of the invention

[0005] The embodiment of the present application provides an outer wall polishing device for a stainless steel tube, thereby solving the technical problem in the prior art that the polishing efficiency is easily affected by external spraying of coolant during the polishing and grinding process of the stainless steel tube, and achieves the technical effect of cooling the stainless steel tube in a closed environment by the coolant, thereby improving the polishing efficiency.

[0006] The embodiment of the present application provides an outer wall polishing device for a stainless steel pipe, comprising a base, a bracket, a polishing roller, a driving motor, a liquid storage tank and a stainless steel pipe; two brackets are vertically arranged and symmetrically fixed to the left and right sides of the upper end of the base; end tables and mounting arms are symmetrically arranged on the opposite surfaces between the two brackets, and a liquid storage tank and a driving motor are fixed on the sides of the two brackets away from each other, and the main shaft of the output end of the driving motor is fixedly connected to one of the end tables through an end shaft, and the end shaft passes through the side wall of the bracket, and the end shaft is rotatably connected to the side wall of the bracket; an adapter is coaxially fixed to one end of the end table away from the driving motor, and the adapter is rotatably connected to a fixed end at one end away from the end table A joint, a fixed joint is fixedly connected with a pump liquid pipe on one side close to the liquid storage tank, the pump liquid pipe is connected to the liquid storage tank, and mutually connected cavities are provided inside the fixed joint and the adapter. A liquid inlet is provided inside the end platform connected to the adapter, both ends of the liquid inlet pass through the end platform, and the liquid inlet is connected to the inside of the adapter; an elastic tube is coaxially fixed outside the opening of the liquid inlet on the side away from the adapter, the elastic tube is a tube with a hollow interior and openings at both ends, the elastic tube is made of elastic rubber, and the opening at one end of the elastic tube away from the liquid inlet is fixed to the side wall of the end platform on the side close to the driving motor, so that a cavity is formed inside the elastic tube; the elastic tube coaxially passes through the inside of the stainless steel tube.

[0007] Preferably, the end platform is cylindrical, the adapter is rotatably connected to the inside of the bracket, the fixed joint is fixedly connected to the inside of the bracket and is rotatably connected to the adapter, the fixed joint and the adapter are dynamically sealed, the pump liquid pipe is located inside the liquid storage tank and is fixed with a liquid supply pump at one end, and the liquid storage tank is filled with coolant; the mounting arm is coaxially sleeved on the outer periphery of the end platform, and the mounting arm and the bracket are fixedly connected; detachable arc-shaped splints are symmetrically fixed on the opposite surfaces of the two end platforms, and there are multiple arc-shaped splints on each end platform, and the multiple arc-shaped splints are distributed on the same circumference, and the stainless steel pipe is fixed between the two end platforms through the arc-shaped splint; three polishing rollers are slidably connected between the two mounting arms, and the three polishing rollers are triangular and evenly distributed on the outer periphery of the stainless steel pipe, and the length of the polishing rollers is adapted to that of the stainless steel pipe; a refrigerator is fixed at the bottom of the liquid storage tank.

[0008] Preferably, the end platform is further provided with an air hole, both ends of which are located on the end surface of the end platform on which the arc-shaped clamping plate is fixed, one end of the air hole is located on the inner side of the stainless steel tube, and the other end is located on the outer side of the stainless steel tube.

[0009] Preferably, the elastic tube is connected between one end near the driving motor and the end face of the end platform via a mounting platform, and a mounting groove and a clamping groove matching with the mounting platform are arranged in the end platform, and a protrusion is fixed to an end face of the mounting platform near the end shaft, and the protrusion matches with the clamping groove. The protrusion and the end shaft are eccentrically arranged and are not coaxial. When the coolant is filled into the elastic tube, the elastic tube expands and pushes the mounting platform and the protrusion to insert into the mounting groove and the clamping groove.

[0010] Preferably, a separation cylinder is coaxially arranged inside the elastic cylinder, and the separation cylinder is in the shape of a cylinder with two ends open, an opening edge of one end of the separation cylinder is fixed to the opening edge of the liquid inlet, and the other end is a free end, and the free end of the separation cylinder is close to one side of the mounting platform, and the separation cylinder divides the inside of the elastic cylinder into two parts, wherein the inside of the separation cylinder is an inner cylinder channel, and the outer side of the separation cylinder and the elastic cylinder are between the outer cylinder channel;

[0011] An inner transfer tube is coaxially fixed inside the adapter, and an inner fixed tube is coaxially fixed inside the fixed joint; the inner transfer tube and the inner fixed tube are rotationally connected, and the two are dynamically sealed; the inner transfer tube and the inner fixed tube separate the cavities inside the fixed joint and the adapter into two independent cavities inside and outside, wherein the cavity located inside is connected to the pump liquid pipe, and the cavity located outside is the return liquid chamber, the side of the return liquid chamber away from the end platform is connected to the liquid storage tank through the return liquid pipe, and the side of the return liquid chamber close to the end platform is connected to the outer tube channel through the liquid channel, and the liquid channel is opened inside the end platform.

[0012] Preferably, the separation cylinder is composed of three layers of elastic films, and the separation cylinder is made of elastic material.

[0013] Preferably, the three-layer structure of the separation cylinder forms two independent inner and outer cavities, wherein the inner cavity is the air cylinder cavity, and the outer cavity is the paraffin cavity, and the paraffin cavity is filled with paraffin.

[0014] Preferably, an air pump box is fixed in the adapter, and the drive motor, liquid supply pump, refrigerator and air pump box are externally connected to an intelligent control system; an electric air pump is provided inside the air pump box, and a battery compartment is fixed on one side of the air pump box, the electric air pump in the air pump box is electrically connected to the battery compartment, the electric air pump is signal-connected to the external intelligent control system, and the air pump box is connected to two airways, one of which is connected to the air cylinder cavity, and the other is connected to the air vent, so that the air cylinder cavity can be filled and discharged with gas through the electric air pump inside the air pump box.

[0015] Preferably, a plurality of magnetic fluid capsules are fixed to the inner ring side wall of the cylinder cavity, and the plurality of magnetic fluid capsules are evenly distributed along the length direction of the cylinder cavity. The magnetic fluid capsule is an annular elastic capsule coaxially arranged with the cylinder cavity, and the interior of the magnetic fluid capsule is filled with magnetic fluid, and the interior of the paraffin cavity is also filled with iron powder, and the iron powder and paraffin are mixed with each other, and the iron powder can be magnetically attracted by the magnetic fluid; when the cylinder cavity is inflated, the magnetic fluid capsule is far away from the paraffin cavity, and when the cylinder cavity is not filled with gas, the magnetic fluid capsule is close to the paraffin cavity, so that the magnetic fluid magnetically attracts the iron powder, so that the iron powder is concentrated or tightly attracted by the magnetic force, thereby enhancing the strength of the paraffin cavity, and the magnetic force of the magnetic fluid inside the plurality of magnetic fluid capsules is gradually weakened from the end of the separation tube away from the mounting platform to the end close to the mounting platform, so that the amount of iron powder concentrated at the end close to the liquid inlet is more, so that the heat exchange efficiency between the inner cylinder channel and the outer cylinder channel of this part is higher, thereby further balancing the cooling effect of the stainless steel pipe, and adjusting the heat exchange rate between the inner cylinder channel and the outer cylinder channel by the distribution of iron powder.

[0016] Preferably, a vibration ring is coaxially slidably arranged inside the air cylinder cavity. The vibration ring is an annular plate. A reset rope is fixed to the end of the vibration ring away from the mounting platform. The reset rope is made of elastic material. The end of the reset rope away from the vibration ring is fixed to the side wall of the end platform.

[0017] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0018] A liquid storage tank is provided, and an adapter is provided at one end close to the liquid storage tank, so that the stainless steel pipe is fixed between the two end platforms, and an elastic cylinder is provided between the end platforms, and the stainless steel pipe is sleeved outside the elastic cylinder. The elastic cylinder is expanded by the coolant inside the liquid storage tank to adapt to the shape of the stainless steel pipe, and the elastic cylinder is rotated synchronously with the stainless steel pipe. During the polishing process, the heat generated by the friction of the stainless steel pipe is absorbed, which solves the technical problem that the polishing efficiency is easily affected by external spraying of coolant during the polishing and grinding of the stainless steel pipe in the prior art, and realizes the technical effect of cooling the stainless steel pipe by the coolant in a closed environment, thereby improving the polishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0020] Figure 2 This is a schematic diagram of the position of the elastic tube in the first embodiment of the present invention;

[0021] Figure 3 It is a schematic side view of an end table of an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the expansion state of the elastic tube in the first embodiment of the present invention;

[0023] Figure 5This is a schematic diagram of the interior of the elastic tube of the second embodiment of the present invention;

[0024] Figure 6 for Figure 5 A magnified schematic diagram of region A;

[0025] Figure 7 This is a schematic diagram of the internal structure of the separation cylinder of the second embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of the separation cylinder of Example 3 of the present invention;

[0027] Fig. 9 This is a schematic diagram of a vibrating ring being pushed in Embodiment 3 of the present invention;

[0028] Fig.10 This is a schematic diagram of the rebound reset of the vibration ring in embodiment 3 of the present invention.

[0029] In the figure:

[0030] Base 100; bracket 200; mounting arm 210; polishing roller 300; stainless steel pipe 400; driving motor 500; liquid storage tank 600; liquid supply pump 610; refrigerator 620; pump liquid pipe 630; fixed joint 640; inner fixed joint cylinder 641; return liquid pipe 650; end platform 700; end shaft 710; arc splint 720; adapter 730; inner adapter cylinder 731; air pump box 732; battery compartment 733; air channel 734; return liquid cavity 735; air vent 740; liquid inlet 750; liquid channel 760; mounting platform 770; protrusion 771; slot 780; elastic cylinder 800; partition cylinder 810; air cylinder cavity 811; paraffin cavity 812; outer cylinder channel 820; inner cylinder channel 830; magnetic fluid capsule 840; vibration ring 850; reset pull rope 860. DETAILED DESCRIPTION

[0031] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0032] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] Embodiment 1: Figures 1 to 4 As shown, the present application is a device for polishing the outer wall of a stainless steel tube 400, comprising a base 100, a bracket 200, a polishing roller 300, a drive motor 500, a liquid storage tank 600 and a stainless steel tube 400; the bracket 200 is vertically provided with two, and is symmetrically fixed to the left and right sides of the upper end of the base 100;

[0035] The opposite surfaces between the two brackets 200 are symmetrically provided with end tables 700 and mounting arms 210, the mounting arms 210 are coaxially sleeved on the outer periphery of the end tables 700, and the mounting arms 210 are fixedly connected to the brackets 200; the opposite surfaces of the two end tables 700 are symmetrically fixed with detachable arc-shaped clamping plates 720, and the arc-shaped clamping plates 720 on each end table 700 are multiple, such as Figure 3 , multiple arc-shaped clamping plates 720 are distributed on the same circumference, and the stainless steel pipe 400 is fixed between the two end platforms 700 through the arc-shaped clamping plates 720; three polishing rollers 300 are slidably connected between the two mounting arms 210, and the three polishing rollers 300 are evenly distributed on the outer circumference of the stainless steel pipe 400 in a triangular shape, and the length of the polishing rollers 300 is adapted to the stainless steel pipe 400; the end platform 700 is cylindrical, and a liquid storage tank 600 and a drive motor 500 are fixed on the side away from each other of the two brackets 200, and the output end of the drive motor 500 The main shaft is fixedly connected to one of the end platforms 700 through an end shaft 710, and the end shaft 710 passes through the side wall of the bracket 200. The end shaft 710 is rotatably connected to the side wall of the bracket 200. When the driving motor 500 is running, the end shaft 710 starts to rotate and drives the end platform 700 and the arc-shaped clamping plate 720 to rotate synchronously. The arc-shaped clamping plate 720 drives the clamped stainless steel pipe 400 to rotate synchronously. The user polishes the stainless steel pipe 400 by sliding the three polishing rollers 300 to fit tightly against the outer surface of the stainless steel pipe 400 and rotating the stainless steel pipe 400.

[0036] An adapter 730 is coaxially fixed to one end of the end platform 700 away from the drive motor 500, and the adapter 730 is rotatably connected to the inside of the bracket 200, and the adapter 730 is rotatably connected to a fixed joint 640 at one end away from the end platform 700, and the fixed joint 640 is fixedly connected to the inside of the bracket 200 and rotatably connected to the adapter 730, and a dynamic seal is cooperated between the fixed joint 640 and the adapter 730, and a pump pipe 630 is fixedly connected to the side of the fixed joint 640 close to the liquid storage tank 600, and the pump pipe 630 is connected to the liquid storage tank 600, and a liquid supply pump 610 is fixed to one end of the pump pipe 630 located inside the liquid storage tank 600, and the liquid storage tank 600 is filled with coolant; the fixed joint 640 and the adapter 730 There are interconnected cavities inside the two joints 730, and a liquid inlet 750 is opened inside the end platform 700 connected to the adapter 730. Both ends of the liquid inlet 750 pass through the end platform 700, and the liquid inlet 750 is connected to the inside of the adapter 730; an elastic tube 800 is coaxially fixed outside the opening of the liquid inlet 750 on the side away from the adapter 730. The elastic tube 800 is a cylinder with a hollow interior and openings at both ends. The elastic tube 800 is made of elastic rubber. The opening of the end of the elastic tube 800 away from the liquid inlet 750 is fixed to the side wall of the end platform 700 on the side close to the drive motor 500, so that a cavity is formed inside the elastic tube 800; the elastic tube 800 coaxially passes through the inside of the stainless steel pipe 400.

[0037] The coolant is preferably water. A refrigerator 620 is fixed at the bottom of the liquid storage tank 600. The refrigerator 620 is used to cool the coolant inside the liquid storage tank 600. The refrigerator 620 is a prior art and will not be described in detail.

[0038] The end platform 700 is also provided with an air hole 740, both ends of which are located on the end surface of the end platform 700 where the arc-shaped clamping plate 720 is fixed. One end of the air hole 740 is located on the inner side of the stainless steel tube 400, and the other end is located on the outer side of the stainless steel tube 400. When the stainless steel tube 400 and the end platform 700 are too tightly fitted, the internal gas does not circulate, thereby preventing the elastic tube 800 from being difficult to deform.

[0039] When polishing is in progress, the stainless steel tube 400 is sleeved outside the elastic tube 800, and the liquid supply pump 610 in the liquid storage tank 600 is started. The liquid supply pump 610 pumps the coolant into the elastic tube 800 through the fixed joint 640, the adapter 730 and the liquid inlet 750 in sequence, so that the elastic tube 800 expands, so that the outer surface of the elastic tube 800 fits with the inner wall of the stainless steel tube 400. When the stainless steel tube 400 rotates driven by the driving motor 500, the elastic tube 800 rotates synchronously with the stainless steel tube 400, and at the same time cools the stainless steel tube 400 and absorbs the heat generated by it.

[0040] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0041] In this embodiment, a liquid storage tank 600 is provided, and an adapter 730 is provided at one end close to the liquid storage tank 600, so that the stainless steel tube 400 is fixed between two end platforms 700, and an elastic tube 800 is provided between the end platforms 700, and the stainless steel tube 400 is sleeved outside the elastic tube 800, and the elastic tube 800 is expanded by the coolant inside the liquid storage tank 600 to adapt to the shape of the stainless steel tube 400, and the elastic tube 800 is rotated synchronously with the stainless steel tube 400. During the polishing process, the heat generated by the friction of the stainless steel tube 400 is absorbed, thereby solving the technical problem of the prior art that the polishing efficiency is easily affected by the external spraying of coolant during the polishing and grinding process of the stainless steel tube 400, and achieving the technical effect of cooling the stainless steel tube 400 in a closed environment with the coolant, thereby improving the polishing efficiency.

[0042] Embodiment 2: Considering that in the above embodiment 1, when the temperature of the stainless steel tube 400 continues to rise, the temperature of the coolant also rises accordingly. If the coolant is directly replaced, the temperature of the coolant at the end of the elastic tube 800 near the liquid inlet 750 is lower due to the entry of new coolant, while the temperature of the coolant inside the elastic tube 800 away from the liquid inlet 750 gradually rises due to continuous heat exchange when flowing in the length direction of the stainless steel tube 400, resulting in uneven heating at both ends of the stainless steel tube 400, resulting in the temperature of the stainless steel tube 400 near the drive motor 500 being relatively higher than the other end. Since the torque is first concentrated on the side near the drive motor 500, the uneven temperature may easily lead to the risk of deformation or inconsistent polishing effect on the surface of the stainless steel tube 400. Therefore, it is necessary to improve the device, such as Figures 5 to 7 As shown, the specific structure is as follows:

[0043] The end of the elastic cylinder 800 close to the driving motor 500 is connected to the end surface of the end platform 700 through the mounting platform 770. The end platform 700 is provided with a mounting groove and a clamping groove 780 that match the mounting platform 770. The mounting platform 770 is fixed with a protrusion 771 on an end surface close to the end shaft 710. The protrusion 771 matches the clamping groove 780. The protrusion 771 and the end shaft 710 are eccentrically arranged, and the two are not coaxial. When the elastic cylinder 800 is filled with coolant, the elastic cylinder 800 expands and pushes the mounting platform 770 and the protrusion 771 to insert into the mounting groove and the clamping groove 780. When polishing is completed, the liquid in the elastic cylinder 800 is pumped away, and the elastic cylinder 800 contracts to separate the mounting platform 770 from the mounting groove, so that the user can easily replace the stainless steel pipe 400.

[0044] A separation cylinder 810 is coaxially arranged inside the elastic cylinder 800. The separation cylinder 810 is a cylinder with two ends open. The edge of one end of the separation cylinder 810 is fixed to the edge of the opening of the liquid inlet 750, and the other end is a free end. The free end of the separation cylinder 810 is close to one side of the mounting platform 770. The separation cylinder 810 divides the inside of the elastic cylinder 800 into two parts, wherein the inner side of the separation cylinder 810 is an inner cylinder channel 830, and the outer side of the separation cylinder 810 and the elastic cylinder 800 are between the outer cylinder channel 820;

[0045] An inner adapter tube 731 is coaxially fixed inside the adapter 730, and an inner fixed connection tube 641 is coaxially fixed inside the fixed joint 640; the inner adapter tube 731 and the inner fixed connection tube 641 are rotationally connected, and the two are dynamically sealed; the inner adapter tube 731 and the inner fixed connection tube 641 separate the cavities inside the fixed joint 640 and the adapter 730 into two independent cavities, the inner cavity is connected with the pump liquid pipe 630, and the outer cavity is the return liquid chamber 735, and the side of the return liquid chamber 735 away from the end platform 700 is connected to the liquid storage tank 600 through the return liquid pipe 650, and the side of the return liquid chamber 735 close to the end platform 700 is connected with the outer tube channel 820 through the liquid channel 760, and the liquid channel 760 is opened inside the end platform 700.

[0046] like Figure 7 As shown by the arrow, the coolant first enters the elastic tube 800 near the mounting platform 770 through the inner tube channel 830 from the liquid inlet 750, then returns to the outer tube channel 820 through the outer tube channel 820, and enters the return liquid chamber 735 from the end of the outer tube channel 820 near the liquid channel 760, and flows into the return liquid pipe 650 from the return liquid chamber 735, and then returns to the liquid storage tank 600 for cooling.

[0047] The separation cylinder 810 is composed of three layers of elastic membranes. The separation cylinder 810 is made of elastic material. The three-layer structure of the separation cylinder 810 forms two independent cavities inside and outside, wherein the inner cavity is the air cylinder cavity 811, and the outer cavity is the paraffin cavity 812. The paraffin cavity 812 is filled with paraffin.

[0048] An air pump box 732 is fixed inside the adapter 730, and the drive motor 500, the liquid supply pump 610, the refrigerator 620 and the air pump box 732 are externally connected to an intelligent control system. The intelligent control system is preferably a programmable logic controller or an embedded single-chip computer system, both of which are prior arts, so they are not described in detail; an electric air pump is arranged inside the air pump box 732, and a battery compartment 733 is fixed on one side of the air pump box 732. The electric air pump in the air pump box 732 is electrically connected to the battery compartment 733, and the electric air pump is connected to the external intelligent control system signal. The air pump box 732 is connected to two airways 734, one of which is connected to the air cylinder cavity 811, and the other is connected to the air vent 740, so that the air cylinder cavity 811 is charged and discharged by the electric air pump inside the air pump box 732;

[0049] When the operator performs the polishing operation, the paraffin cavity 812 is preheated first to soften the paraffin, and then the stainless steel tube 400 is sleeved on the outside of the elastic cylinder 800. Then the intelligent control system controls the electric air pump to inflate the cylinder cavity 811 to expand the cylinder cavity 811 and deform the paraffin cavity 812 toward the inner wall of the stainless steel tube 400. When the set amount of air is filled, the inflation is stopped; and the liquid supply pump 610 is driven to fill the elastic cylinder 800 with liquid. The coolant cools the paraffin at the same time to harden the paraffin. After the paraffin is hardened, the air pump is driven to fill the cylinder cavity 811 with liquid. The gas is extracted; thus, the cross-sectional area of ​​the inner tube channel 830 is larger, and the cross-sectional area of ​​the outer tube channel 820 is smaller, so that the flow rate of the outer tube channel 820 is faster, and the support force for the stainless steel pipe 400 is stronger. At the same time, when the elastic tube 800 rotates, the overall stability is stronger; when the temperature of the stainless steel pipe 400 is high, the paraffin softens with the increase in temperature. After the paraffin softens, the diameter of the partition tube 810 shrinks inward, so that the cross-sectional area of ​​the outer tube channel 820 increases, and the coolant and the stainless steel pipe 400 have sufficient heat exchange to reduce the temperature of the stainless steel pipe 400.

[0050] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0051] This embodiment solves the technical problem of uneven heating at both ends of the stainless steel tube 400 in the above-mentioned embodiment 1 by providing a separation tube 810, and achieves the technical effect of reducing heat exchange before the coolant reaches the far end of the elastic tube 800, thereby making the cooling of the stainless steel tube 400 more balanced in the length direction.

[0052] Embodiment 3: In order to ensure the strength of the paraffin chamber 812 in the above embodiment 2 and make the support of the paraffin chamber 812 more stable, it is necessary to improve the device, such as Figures 8 to 10 As shown, the specific structure is as follows:

[0053] A plurality of magnetic fluid capsules 840 are fixed to the inner ring side wall of the cylinder cavity 811, and the plurality of magnetic fluid capsules 840 are evenly distributed along the length direction of the cylinder cavity 811. The magnetic fluid capsule 840 is an annular elastic capsule coaxially arranged with the cylinder cavity 811. The interior of the magnetic fluid capsule 840 is filled with magnetic fluid, and the interior of the paraffin cavity 812 is also filled with iron powder. The iron powder and the paraffin are mixed with each other, and the iron powder can be magnetically attracted by the magnetic fluid. When the cylinder cavity 811 is inflated, the magnetic fluid capsule 840 is separated from the paraffin cavity 812. When the cylinder cavity 811 is not filled with gas, the magnetic fluid capsule 840 and the paraffin cavity 812 are separated. 12 are close to each other, so that the magnetic fluid magnetically attracts the iron powder, causing the iron powder to be concentrated or tightly attracted by the magnetic force, thereby enhancing the strength of the paraffin chamber 812, and the magnetic force of the magnetic fluid inside the multiple magnetic fluid capsules 840 is gradually weakened from the end of the separation tube 810 away from the mounting platform 770 to the end close to the mounting platform 770, so that the iron powder is concentrated in a larger amount at the end close to the liquid inlet 750, so that the heat exchange efficiency between the inner tube channel 830 and the outer tube channel 820 of this part is higher, thereby further balancing the cooling effect of the stainless steel tube 400, and adjusting the heat exchange speed between the inner tube channel 830 and the outer tube channel 820 through the distribution of the iron powder.

[0054] Furthermore, a vibration ring 850 is coaxially slidably disposed inside the cylinder cavity 811. The vibration ring 850 is an annular plate. A reset pull rope 860 is fixed to one end of the vibration ring 850 away from the mounting platform 770. The reset pull rope 860 is made of elastic material. One end of the reset pull rope 860 away from the vibration ring 850 is fixed to the side wall of the end platform 700.

[0055] like Fig. 9 When the cylinder cavity 811 is filled with gas, the outer wall of the vibration ring 850 is always in close contact with the side wall of the paraffin cavity 812 due to the mutual magnetic attraction between the magnetic fluid capsule 840 and the paraffin cavity 812, so that the vibration ring 850 can slide inside the cylinder cavity 811 with the gas (such as Fig. 9 direction indicated by the arrow in the middle); Fig.10 When the cylinder cavity 811 is further inflated, the radial dimension of the cylinder cavity 811 increases, the distance between the vibration ring 850 and the side wall of the cylinder cavity 811 increases, and the resistance decreases, so that the cylinder cavity 811 is reset under the pull of the reset rope 860 (such as Fig.10 When the vibration ring 850 slides, it collides with the multiple magnetic fluid bags 840, causing the paraffin cavity 812 to vibrate under the drive of the vibration ring 850, so that the iron powder in the paraffin cavity 812 loses the magnetic attraction of the magnetic fluid and the iron powder inside the paraffin cavity 812 is fully mixed with the paraffin, thereby preventing the iron powder from agglomerating and affecting the solidification of the paraffin.

[0056] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0057] In this embodiment, a magnetic fluid capsule 840 is provided and iron powder is filled in the paraffin cavity 812 so that the two are magnetically fixed to each other, thereby enhancing the strength of the paraffin cavity 812. At the same time, the distribution of the iron powder is controlled by the magnetic force distribution of the magnetic fluid, so that the thermal conductivity of the paraffin is controlled, thereby enhancing the thermal conductivity efficiency and reliability.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stainless steel pipe outer wall polishing device, characterized in that: The invention comprises a base (100), a bracket (200), a polishing roller (300), a driving motor (500), a liquid storage tank (600) and a stainless steel pipe (400); two brackets (200) are vertically arranged and symmetrically fixed to the left and right sides of the upper end of the base (100); end tables (700) and mounting arms (210) are symmetrically arranged on the opposite sides of the two brackets (200); and the liquid storage tank (600) and the driving motor (500) are fixed to the sides of the two brackets (200) away from each other. The drive motor (500) is provided with a main shaft at the output end of the drive motor (500) fixedly connected to one of the end platforms (700) via an end shaft (710), the end shaft (710) passes through the side wall of the bracket (200), and the end shaft (710) is rotatably connected to the side wall of the bracket (200); an adapter (730) is coaxially fixed to one end of the end platform (700) away from the drive motor (500), and a fixed joint (640) is rotatably connected to the one end of the adapter (730) away from the end platform (700), and the fixed joint (64 0) A pumping liquid pipe (630) is fixedly connected to one side close to the liquid storage tank (600), and the pumping liquid pipe (630) is connected to the liquid storage tank (600). A mutually connected cavity is provided inside the fixed joint (640) and the adapter (730). A liquid inlet (750) is provided inside the end platform (700) connected to the adapter (730). Both ends of the liquid inlet (750) penetrate the end platform (700), and the liquid inlet (750) is connected to the inside of the adapter (730). An elastic tube (800) is coaxially fixed outside the opening of the liquid inlet (750) on the side away from the adapter (730). The elastic tube (800) is in the shape of a tube with a hollow interior and openings at both ends. The elastic tube (800) is made of elastic rubber. The opening at one end of the elastic tube (800) away from the liquid inlet (750) is fixed to the side wall of the end platform (700) on the side close to the drive motor (500), so that a cavity is formed inside the elastic tube (800); the elastic tube (800) coaxially passes through the interior of the stainless steel tube (400).

2. The outer wall polishing device of the stainless steel pipe according to claim 1, characterized in that: The end platform (700) is cylindrical, the adapter (730) is rotatably connected to the inside of the bracket (200), the fixed joint (640) is fixedly connected to the inside of the bracket (200) and is rotatably connected to the adapter (730), a dynamic seal is formed between the fixed joint (640) and the adapter (730), the pump liquid pipe (630) is located inside the liquid storage tank (600), one end of which is fixed with a liquid supply pump (610), and the liquid storage tank (600) is filled with coolant; the mounting arm (210) is coaxially sleeved on the outer periphery of the end platform (700), and the mounting arm (210) is fixedly connected to the bracket (200); the two end platforms (700) are mutually connected. Removable arc-shaped clamping plates (720) are symmetrically fixed on opposite sides, and there are multiple arc-shaped clamping plates (720) on each end platform (700). The multiple arc-shaped clamping plates (720) are distributed on the same circumference. The stainless steel pipe (400) is fixed between the two end platforms (700) through the arc-shaped clamping plates (720); three polishing rollers (300) are slidably connected between the two mounting arms (210), and the three polishing rollers (300) are evenly distributed on the outer circumference of the stainless steel pipe (400) in a triangular shape, and the lengths of the polishing rollers (300) and the stainless steel pipe (400) are adapted; a refrigerator (620) is fixed at the bottom of the liquid storage tank (600).

3. The outer wall polishing device of the stainless steel pipe according to claim 2, characterized in that: The end platform (700) is also provided with an air vent (740), both ends of which are located on the end surface of the end platform (700) to which the arc-shaped clamping plate (720) is fixed, and one end of the air vent (740) is located inside the stainless steel tube (400) and the other end is located outside the stainless steel tube (400).

4. The outer wall polishing device of the stainless steel pipe according to claim 3, characterized in that: The end of the elastic tube (800) close to the driving motor (500) is connected to the end surface of the end platform (700) through a mounting platform (770); a mounting groove and a clamping groove (780) matching with the mounting platform (770) are arranged in the end platform (700); a convex block (771) is fixed to an end surface of the mounting platform (770) close to the end shaft (710); the convex block (771) matches with the clamping groove (780); the convex block (771) and the end shaft (710) are eccentrically arranged and are not coaxial; when the interior of the elastic tube (800) is filled with coolant, the elastic tube (800) expands and pushes the mounting platform (770) and the convex block (771) to be inserted into the mounting groove and the clamping groove (780).

5. The outer wall polishing device of the stainless steel pipe according to claim 4, characterized in that: A separation cylinder (810) is coaxially arranged inside the elastic cylinder (800), and the separation cylinder (810) is in the shape of a cylinder with two ends open. The edge of the opening at one end of the separation cylinder (810) is fixed to the edge of the opening of the liquid inlet (750), and the other end is open as a free end. The free end of the separation cylinder (810) is close to one side of the mounting platform (770). The separation cylinder (810) divides the interior of the elastic cylinder (800) into two parts, wherein the inside of the separation cylinder (810) is an inner cylinder channel (830), and the outer side of the separation cylinder (810) and the space between the elastic cylinder (800) is an outer cylinder channel (820); An inner transfer tube (731) is coaxially fixed inside the transfer joint (730), and an inner fixed connection tube (641) is coaxially fixed inside the fixed joint (640); the inner transfer tube (731) and the inner fixed connection tube (641) are rotationally connected and the two are dynamically sealed; the inner transfer tube (731) and the inner fixed connection tube (641) separate the cavities inside the fixed joint (640) and the transfer joint (730) into two independent cavities, inner and outer cavities. The invention relates to a body, wherein the cavity located inside is connected to the pump liquid pipe (630), and the cavity located outside is a return liquid chamber (735). The side of the return liquid chamber (735) away from the end platform (700) is connected to the liquid storage tank (600) through the return liquid pipe (650), and the side of the return liquid chamber (735) close to the end platform (700) is connected to the outer cylinder channel (820) through the liquid channel (760), and the liquid channel (760) is opened inside the end platform (700).

6. The outer wall polishing device of the stainless steel pipe according to claim 5, characterized in that: The separation cylinder (810) is composed of three layers of elastic membranes and is made of elastic material.

7. The outer wall polishing device of the stainless steel pipe according to claim 6, characterized in that: The three-layer structure of the separation cylinder (810) forms two independent inner and outer cavities, wherein the inner cavity is the cylinder cavity (811) and the outer cavity is the paraffin cavity (812), and the paraffin cavity (812) is filled with paraffin.

8. The outer wall polishing device of the stainless steel pipe according to claim 7, characterized in that: An air pump box (732) is fixed inside the adapter (730), and the drive motor (500), the liquid supply pump (610), the refrigerator (620) and the air pump box (732) are externally connected to an intelligent control system; an electric air pump is provided inside the air pump box (732), and a battery compartment (733) is fixed on one side of the air pump box (732). The electric air pump in the air pump box (732) is electrically connected to the battery compartment (733), and the electric air pump is signal-connected to an external intelligent control system. The air pump box (732) is connected to two air passages (734), one of which is connected to the air cylinder cavity (811), and the other is connected to the air vent (740), so that the air cylinder cavity (811) can be charged and discharged by the electric air pump inside the air pump box (732).

9. The outer wall polishing device of the stainless steel pipe according to claim 8, characterized in that: A plurality of magnetic fluid capsules (840) are fixed to the inner ring side wall of the cylinder cavity (811), and the plurality of magnetic fluid capsules (840) are evenly distributed along the length direction of the cylinder cavity (811). The magnetic fluid capsule (840) is an annular elastic capsule coaxially arranged with the cylinder cavity (811). The interior of the magnetic fluid capsule (840) is filled with magnetic fluid, and the interior of the paraffin cavity (812) is also filled with iron powder. The iron powder and the paraffin are mixed with each other, and the iron powder can be magnetically attracted by the magnetic fluid. When the interior of the cylinder cavity (811) is inflated, the magnetic fluid capsule (840) is separated from the paraffin cavity (812), and when the interior of the cylinder cavity (811) is not filled with gas, the magnetic fluid capsule (840) and the paraffin cavity are close to each other. (812) are close to each other, so that the magnetic fluid magnetically attracts the iron powder, causing the iron powder to be concentrated or tightly attracted by the magnetic force, thereby enhancing the strength of the paraffin chamber (812), and the magnetic force of the magnetic fluid inside the multiple magnetic fluid capsules (840) is gradually weakened from the end of the separation tube (810) away from the mounting platform (770) to the end close to the mounting platform (770), so that the amount of iron powder concentrated at the end close to the liquid inlet (750) is more, making the heat exchange efficiency between the inner tube channel (830) and the outer tube channel (820) of this part higher, thereby further balancing the cooling effect of the stainless steel pipe (400), and adjusting the heat exchange rate between the inner tube channel (830) and the outer tube channel (820) through the distribution of the iron powder.

10. The outer wall polishing device of a stainless steel pipe according to claim 9, characterized in that: A vibration ring (850) is coaxially slidably arranged inside the air cylinder cavity (811). The vibration ring (850) is an annular plate. A reset pull rope (860) is fixed to one end of the vibration ring (850) away from the mounting platform (770). The reset pull rope (860) is made of elastic material. One end of the reset pull rope (860) away from the vibration ring (850) is fixed to the side wall of the end platform (700).

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