Grinding equipment for convex fins of high-temperature alloy furnace tube

Abstract

The invention relates to the technical field of furnace tube grinding, in particular to high-temperature alloy furnace tube convex rib grinding equipment which comprises a base, the top face of the base is slidably connected with a bearing box, one end of the bearing box is fixedly connected with a first supporting seat, and the other end of the bearing box is slidably connected with a second supporting seat. A clamp is rotationally arranged at the top of the first supporting seat, and the furnace tube is rotationally installed between the first supporting seat and the second supporting seat through the clamp. According to the furnace tube grinding device, the first grinding brush roller is inserted into the gap position of the fins of the two furnace tubes, and the first grinding brush roller is kept in a static state relative to the rotating furnace tubes, so that the first grinding brush roller can grind the outer side curved surfaces of the furnace tubes and the outer side curved surfaces of the fins at the gap position; the cooling liquid adding piece can dropwise add cooling liquid into the grinding area during grinding, cooling liquid adding and furnace tube grinding are combined while cooling liquid is saved, and the overall efficiency of furnace tube grinding and cooling is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of furnace tube grinding, and specifically to a grinding device for the external convex rib fins of a superalloy furnace tube. Background Art

[0002] A superalloy furnace tube is a pipe made of superalloy material, which can transfer heat from a heat source to the material or reaction medium to be heated. Special structures are usually designed on the outer side of the furnace tube to increase the heat transfer area. For example, spiral convex rib fins are designed on the outer side of the furnace tube to make the heat evenly distributed on the surface of the furnace tube. The external convex rib fins are usually formed by casting or welding processes, and the surface roughness is relatively high. For furnace tubes used at high temperatures for a long time, oxide scales and impurities are likely to form on the surface of the tube body and the fins. In order to remove burrs, oxide scales and impurities, a grinding device is needed to grind and polish the furnace tube;

[0003] At present, most grinding devices mainly drive the furnace tube to rotate through a motor, and the grinding brush roll feeds along the axial direction of the furnace tube to continuously grind the surface of the furnace tube. However, this type of grinding device is mainly applicable to regular cylindrical surfaces and is not conducive to processing the complex spiral curved surface of the external convex rib fins, thus affecting the grinding effect of the furnace tube fins. In order to prevent the high temperature generated by dry grinding from causing microcracks in the material, coolant is often added to the furnace tube during the grinding process. However, most of the structures for adding coolant are independently designed and are not conducive to combining with the grinding structure of the furnace tube to save coolant while optimizing the overall efficiency of grinding and cooling. Summary of the Invention

[0004] The purpose of the present invention is to provide a grinding device for the external convex rib fins of a superalloy furnace tube to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A grinding device for the external convex rib fins of a superalloy furnace tube, comprising:

[0007] A base, on which a C-shaped rod is fixed;

[0008] A bearing box, which is slidably connected to the base. Support seats one and two are respectively arranged at both ends of the bearing box. A fixture is arranged on the top of the support seat one, and the furnace tube is installed between the support seat one and the support seat two through the fixture;

[0009] A first motor, which is fixed to the support seat one and can drive the fixture to drive the furnace tube to rotate;

[0010] A grinding mechanism, which is slidably connected to the C-shaped rod. The grinding mechanism includes a support plate, and a telescopic member is rotatably connected below the support plate, and a first grinding brush roll is fixed to the bottom of the telescopic member;

[0011] The coolant additive is installed on one side of the base. The coolant additive includes a syringe barrel, and the syringe barrel is connected to an arc-shaped tube through a hose.

[0012] The driving mechanism is arranged outside the grinding mechanism. The driving mechanism includes a lead screw capable of driving the grinding mechanism to move.

[0013] Furthermore, a support shaft is rotatably connected to the top of the second support base, and a guide rail I that is slidably connected to the second support base is fixed to one end of the bearing box.

[0014] Furthermore, a cylinder is fixed to the top surface of the base, and the output end of the cylinder is fixedly connected to the bearing box.

[0015] Furthermore, the telescopic member includes a sleeve rotatably connected to the support plate. A sliding rod is slidably clamped at the bottom of the sleeve, and the sliding rod is fixedly connected to the first grinding brush roller. A motor II capable of driving the sleeve to rotate is fixed to the top surface of the support plate.

[0016] Furthermore, the driving mechanism further includes two columns both fixedly connected to the base. The lead screw is rotatably connected to the columns, and a motor III capable of driving the lead screw to rotate is fixed to the top of one of the columns.

[0017] Furthermore, a piston rod is slidably connected to one end of the syringe barrel. One end of the piston rod is fixedly connected to the bearing box. The arc-shaped tube is fixedly connected to the telescopic member, and two water outlet holes are opened at the bottom of the arc-shaped tube.

[0018] Furthermore, the fixture includes a support tube rotatably connected to the first support base. A gear I and a rotating block are fixed to one end of the support tube. An adjusting rod capable of abutting and fixing the furnace tube from the inside of the furnace tube is arranged inside the support tube.

[0019] Furthermore, the adjusting rod includes a connecting column. Threaded studs screwed to the support tube are arranged at both ends of the connecting column. A frustum block is fixed to one end of the threaded stud, and a rotating tube rotatably connected to the support tube is fixed to one end of one of the threaded studs.

[0020] Furthermore, a plurality of movable blocks are evenly abutted and slid on the outside of the frustum block. An arc-shaped plate is fixed between two opposite movable blocks, and the movable blocks are slidably clamped to the support tube.

[0021] Furthermore, the two gear Is are in meshing transmission, and a gear II meshing with the gear I is fixed to the output end of the motor I.

[0022] Furthermore, a second grinding brush roller is in meshing transmission with the outside of the gear I. A shaft rod is inserted and fixed in the middle of the second grinding brush roller, and both ends of the shaft rod are rotatably connected to the first support base and the second support base respectively.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By respectively fixing a first support base at both ends of the bearing box and slidably connecting a second support base, a fixture is arranged on the top of the first support base. Move the second support base in a direction away from the first support base, sleeved one end of the furnace tube onto the fixture, and the fixture abuts and fixes the furnace tube from the inside of one end of the furnace tube. Move the second support base in a direction close to the first support base to rotatably install the furnace tube between the first support base and the second support base. Extend the telescopic member to insert the first grinding brush roller into the gap between the spiral fins of the two furnace tubes. The second motor drives the telescopic member to rotate to make the first grinding brush roller rotate, which is convenient for grinding the outer side of the fins and the area of the outer side of the furnace tube that can contact the first grinding brush roller;

[0025] The first motor drives the two first gears to rotate synchronously and reversely through the second gear, so that the two furnace tubes rotate in a direction away from the first grinding brush roller. At this time, the spiral fins on the two furnace tubes will drive the first grinding brush roller to move to the right. In order to keep the first grinding brush roller stationary and grind different areas of the outer side of the furnace tube and different areas of the fins, when the furnace tubes rotate in a direction away from the first grinding brush roller, the output end of the cylinder can be used to drive the two furnace tubes on the bearing box to move to the right at the same time, so that the first grinding brush roller remains relatively stationary with the furnace tubes during the rotation of the furnace tubes, which is convenient for the first grinding brush roller to perform all-round grinding on different areas of the outer side of the furnace tube and different areas of the outer side of the fins during the rotation of the furnace tubes;

[0026] After the furnace tubes rotate outwards for one circle (recording the rotation in a direction away from the first grinding brush roller as outward rotation and the rotation in a direction close to the first grinding brush roller as inward rotation), the first motor can be used to drive the two furnace tubes to rotate inwards for one circle. At this time, the fins on the two furnace tubes will make the first grinding brush roller move to the left. In order to keep the first grinding brush roller stationary and continue to perform repeated grinding on different areas of the outer side of the furnace tube and different areas of the fins, when the furnace tubes rotate inwards, the output end of the cylinder can be used to drive the two furnace tubes on the bearing box to move to the left at the same time, and the bearing box can return to the initial position. Similarly, the first grinding brush roller that remains relatively stationary with the furnace tubes can perform secondary all-round grinding on the outer side of the furnace tubes rotating inwards and the outer side of the fins;

[0027] The first grinding brush roller is at a gap position between the two furnace tubes (the gap position refers to Figure 10After staying and rotating for a period of time, the two furnace tubes with fins can continue to rotate outwards by one circle. The rotating spiral fins will convey the grinding brush roller I towards the other side. During this process, the loading box remains stationary. In this process, the motor three drives the lead screw to rotate, and the grinding mechanism screwed to the lead screw will drive the grinding brush roller I to move rightward to another gap position. Similarly, the grinding brush roller I can continue to grind different areas on the outer side of the furnace tube and the outer side of the fins at the second gap. By analogy, the grinding brush roller I can stay and grind at different gap positions between the two furnace tubes from left to right, facilitating the grinding mechanism to move along the axial direction of the furnace tube and perform full-round grinding on the outer side of the fins at different positions in the axial direction of the furnace tube and the outer side of the furnace tube at the fin position;

[0028] In summary, by inserting the grinding brush roller I into the gap position of the spiral fins of the two furnace tubes, when the grinding brush roller I remains relatively stationary with the rotating furnace tubes, it can grind the outer side of the furnace tube around the gap and the outer curved surface of the fins. Utilizing the function of the spiral fins to convey the grinding brush roller I in a directional manner after rotation, the grinding brush roller I can move and grind different areas on the outer side of the furnace tube along the axial direction of the furnace tube, facilitating the grinding brush roller I to perform full-round grinding on the complex spiral curved surface of the convex fins, and simultaneously grinding the two furnace tubes, which is beneficial to improving the grinding efficiency of the furnace tubes.

[0029] 2. An injection cylinder is fixed on the base. One end of the injection cylinder is connected and fixed with an arc tube through a hose. The two water outlet holes at the bottom of the arc tube are respectively arranged above the corresponding furnace tubes, and the same end of the injection cylinder is connected with the external coolant through a hose. During the process that the cylinder drives the loading box to move back and forth to keep the grinding brush roller I relatively stationary with the furnace tubes rotating inwards and outwards, the loading box will drive the piston rod inside the injection cylinder to drive the piston to move back and forth inside the injection cylinder. When the piston rod drives the piston to move towards the hose direction, one hose can add coolant to the outer side of the furnace tube area in the grinding state through the arc tube. When the piston rod drives the piston to move towards the direction away from the hose, the other hose can suck the coolant from the outside to the injection cylinder for standby. Thus, the addition of the coolant and the grinding of the furnace tube are combined and implemented, achieving the effect of adding coolant while grinding, which is beneficial to improving the overall efficiency of furnace tube grinding;

[0030] The arc tube is fixed on the grinding mechanism and can move synchronously with the grinding mechanism, so that the arc tube can accurately add the coolant to the grinding position. Compared with the traditional method of directly spraying the coolant over a large area, it helps to save the coolant. Description of the Drawings

[0031] Figure 1 is the overall structure schematic diagram of the present invention and two furnace tubes Figure 1 ;

[0032] Figure 2 is the overall structure schematic diagram of the present invention and two furnace tubesFigure 2 ;

[0033] Figure 3 is the overall structural schematic diagram of the present invention;

[0034] Figure 4 is the structural schematic diagram of the bottom drive mechanism in the present invention;

[0035] Figure 5 is the structural schematic diagram of the state where the second support base moves along the first guide rail in the present invention;

[0036] Figure 6 is the structural schematic diagram of the first load-bearing support base, the second support base, the fixture, and the second grinding brush roller in the present invention;

[0037] Figure 7 is the structural schematic diagram of the grinding mechanism in the present invention;

[0038] Figure 8 is the internal structural schematic diagram of the support tube in the present invention;

[0039] Figure 9 is the overall structural schematic diagram of the present invention and the spiral small finned furnace tube;

[0040] Figure 10 is the simplified diagram of the identification of different regions of the spiral large finned furnace tube in the present invention;

[0041] Figure 11 is the simplified diagram of the spiral small finned furnace tube in the present invention.

[0042] In the figure: 100, base; 110, C-shaped rod; 120, cylinder; 200, bearing box; 210, first support base; 211, protective shell; 220, second support base; 221, support shaft; 222, bolt; 230, fixture; 231, support tube; 232, first gear; 233, rotating block; 234, adjusting rod; 2341, connecting column; 2342, stud; 2343, frustum block; 2344, rotating tube; 235, movable block; 236, arc plate; 240, first guide rail; 300, second grinding brush roller; 310, shaft rod; 400, first motor; 410, second gear; 500, grinding mechanism; 510, support plate; 520, second motor; 530, first grinding brush roller; 540, sleeve; 541, pin shaft; 550, slide bar; 600, coolant adding member; 610, syringe; 620, arc tube; 621, water outlet hole; 630, piston rod; 700, drive mechanism; 710, column; 720, lead screw; 730, third motor. Detailed implementation manner

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] Example 1. Please refer to Figure 1 - Figure 11 In the embodiments of the present invention, a grinding device for the outer convex ribs of a superalloy furnace tube includes a base 100. A bearing box 200 is slidably connected to the top surface of the base 100. One end of the bearing box 200 is fixedly connected to a first support seat 210. The other end of the bearing box 200 is slidably connected to a second support seat 220. A fixture 230 is rotatably arranged on the top of the first support seat 210. The furnace tube is rotatably installed between the first support seat 210 and the second support seat 220 through the fixture 230. A first motor 400 is fixedly installed on the top of one first support seat 210. The first motor 400 is used to drive the fixture 230 to rotate the furnace tube. A C-shaped rod 110 is fixedly connected to the top surface of the base 100. A grinding mechanism 500 is arranged outside the C-shaped rod 110. The grinding mechanism 500 includes a support plate 510 slidably connected to the C-shaped rod 110. A telescopic member is rotatably connected below the support plate 510. A first grinding brush roller 530 is fixedly installed at the bottom of the telescopic member. A driving mechanism 700 is arranged outside the grinding mechanism 500. The driving mechanism 700 includes a lead screw 720 threadedly connected to the support plate 510.

[0045] Specifically, by inserting the first grinding brush roller 530 into the rib gap between two furnace tubes and keeping the first grinding brush roller 530 stationary relative to the rotating furnace tube, the first grinding brush roller 530 can grind the outer curved surface of the furnace tube and the outer curved surface of the ribs at the gap position. During grinding, the coolant adding member 600 can drip coolant into the grinding area, realizing the combination of coolant addition and furnace tube grinding while saving coolant, and improving the overall efficiency of furnace tube grinding and cooling. By moving the position of the first grinding brush roller 530 relative to the rotating furnace tube, it is convenient for the first grinding brush roller 530 to move along the axial direction of the furnace tube to grind different regions on the outer side of the furnace tube axially.

[0046] As Figure 5 and Figure 6 shown, in this embodiment, a support shaft 221 is rotatably connected to the top of the second support seat 220. A first guide rail 240 fixedly connected to the bearing box 200 at one end is slidably connected to the second support seat 220. A bolt 222 is detachably fixed between the two second support seats 220 and the first guide rail 240.

[0047] In this embodiment, when installing the furnace tube, first move the support seat 220 in the direction away from the support seat 1 210 so that the gap between the support seat 1 210 and the support seat 220 is sufficient to place the furnace tube. After one end of the furnace tube is sleeved on the clamp 230, move the support seat 220 in the direction close to the furnace tube so that the support shaft 221 is inserted into one end of the furnace tube, and then the furnace tube is rotated and installed between the clamp 230 and the support shaft 221. Finally, the bolt 222 is inserted and fixed between the support seat 220 and the guide rail 1 240 to fix the position of the support seat 220 so that the installed furnace tube will not separate from the support seat 1 210 and the support seat 220.

[0048] like Figure 3 and Figure 4 As shown, in this embodiment, a cylinder 120 is fixed to the top surface of the base 100, and the output end of the cylinder 120 is fixedly connected to the carrier box 200. The contraction or extension of the output end of the cylinder 120 can make the carrier box 200 move linearly back and forth along the guide rail 2 on the top surface of the base 100, so that the grinding brush roller 530 inserted into the gap between the two furnace tubes can remain relatively still with the furnace tube during the rotation of the furnace tube, and the spiral ribs on the furnace tube cannot drive the grinding brush roller 530 to move.

[0049] like Figure 7 As shown, in this embodiment, the telescopic member includes a sleeve 540 rotatably connected to the support plate 510, a slide rod 550 is slidably engaged at the bottom of the sleeve 540, the slide rod 550 is fixedly connected to the grinding brush roller 1 530, and a motor 2 520 capable of driving the sleeve 540 to rotate is fixed on the top surface of the support plate 510.

[0050] In this embodiment, the output end of motor 2 520 rotates with sleeve 540, and sleeve 540 rotates with slide rod 550 to rotate grinding brush roller 1 530, so that grinding brush roller 1 530 can grind the furnace tube, wherein the outer grinding brush body of grinding brush roller 1 530 is flexible and can be in close contact with the complex curved surface on the outer side of the furnace tube. The grinding brush roller is a prior art component, and the specific structure is not described in detail.

[0051] In this embodiment, a slide groove is provided on the outside of the slide rod 550, and a slider that is slidably engaged with the slide groove is fixed on the inside of the sleeve 540. The slider slides inside the slide groove, which helps to achieve that the slide rod 550 can adjust the position height along the sleeve 540 and can also rotate with the rotation of the sleeve 540. In the process of installing the furnace pipe, refer to Figure 2 , it is necessary to first slide the slide bar 550 into the sleeve 540 , and after the two furnace tubes are installed, slide the slide bar 550 out of the sleeve 540 and insert it into the gap between the two furnace tubes.

[0052] like Figure 1 and Figure 4As shown, in this embodiment, the driving mechanism 700 further includes two columns 710 both fixedly connected to the base 100. Both ends of the lead screw 720 are rotatably connected to the columns 710 at corresponding positions, and a third motor 730 capable of driving the lead screw 720 to rotate is fixedly installed at the top of one column 710.

[0053] In this embodiment, when it is necessary to drive the grinding mechanism 500 to move the first grinding brush roller 530 to the right to change the gap position for grinding, the output end of the third motor 730 drives the lead screw 720 to rotate. The support plate 510 threadedly engaged with the lead screw 720 drives the telescopic member to move to the right, so that the first grinding brush roller 530 at the bottom of the telescopic member can move to the right synchronously during the outward rotation of the furnace tube, so that the first grinding brush roller 530 can move to different gap positions on the furnace tube. Of course, when the output end of the third motor 730 rotates in the reverse direction and cooperates with the inward rotation of the two furnace tubes, the first grinding brush roller 530 moved to the right can move to the left.

[0054] As Figure 6 and Figure 8 As shown, in this embodiment, the fixture 230 includes a support tube 231 rotatably connected to the first support base 210. One end of the support tube 231 is fixedly provided with a first gear 232 and a rotating block 233. An adjusting rod 234 capable of abutting and fixing the furnace tube from the inside of the furnace tube is arranged inside the support tube 231. The adjusting rod 234 includes a connecting column 2341. Both ends of the connecting column 2341 are provided with studs 2342 threadedly engaged with the support tube 231. One end of the stud 2342 is fixedly provided with a frustum block 2343. One end of one stud 2342 is fixedly provided with a rotating tube 2344 rotatably connected to the support tube 231. Both ends of the connecting column 2341 are fixedly connected to the corresponding studs 2342 and frustum blocks 2343 respectively. A plurality of movable blocks 235 are evenly abutted and slid on the outer curved surface of the frustum block 2343. An arc-shaped plate 236 is fixedly arranged between two opposite movable blocks 235. The movable blocks 235 are slidably clamped with the support tube 231.

[0055] In this embodiment, when it is necessary to use the fixture 230 to fix one end of the furnace tube, first, one end of the furnace tube is sleeved on the outer sides of the plurality of arc-shaped plates 236, and then the rotating block 233 is clamped and fixed by using a prior art tool vise, so that the support tube 231 cannot rotate on the first support base 210. Then, the drill bit of a prior art electric tool is inserted into the hexagonal drill bit at one end of the rotating tube 2344. The electric tool drives the hexagonal drill bit to rotate, so that the rotating tube 2344 drives the two studs 2342 to rotate. The studs 2342 rotate and move inwardly along the support tube 231 in a threaded manner, so that the outer curved surfaces of the plurality of frustum blocks 2343 abut against the bottom surfaces of the movable blocks 235, so that the plurality of movable blocks 235 drive the plurality of arc-shaped plates 236 to move inwardly to the furnace tube, and finally the plurality of arc-shaped plates 236 abut against and are fixed inside the furnace tube, realizing the fixed installation of one end of the furnace tube on the fixture 230.

[0056] In this embodiment, reverse rotation of the rotating tube 2344 can cause the stud 2342 to drive the frustum block 2343 away from the movable block 235, and the movable block 235 no longer abuts against the fixed furnace tube through the arc-shaped plate 236, facilitating the removal of the furnace tube from the fixture 230.

[0057] As Figure 3 and Figure 6 shown, in this embodiment, two first gears 232 are in meshing transmission. A second gear 410 that meshes with the first gear 232 is fixed to the output end of the first motor 400. The output end of the first motor 400 drives the second gear 410 to rotate. The second gear 410 can drive one of the first gears 232 to rotate, and then the two first gears 232 can drive the two furnace tubes to rotate synchronously and in opposite directions through the fixture 230.

[0058] As Figure 2 shown, in this embodiment, a fixed block is fixed to one end of the piston rod 630, and the fixed block is fixedly installed with the bearing box 200. Check valves are fixedly installed inside both hoses at one end of the syringe barrel 610, so that the hose communicating with the arc-shaped tube 620 can only transport the coolant inside the syringe barrel 610 to the position of the arc-shaped tube 620, and the other hose can only transport the external coolant to the inside of the syringe barrel 610 for standby, realizing that as the piston rod 630 reciprocates linearly, the syringe barrel 610 can continuously pump coolant to the position of the arc-shaped tube 620.

[0059] As Figure 1 and Figure 2 shown, in this embodiment, the bearing box 200 is arranged below the two ground furnace tubes, capable of receiving the falling coolant, and the collected coolant can be discharged to a designated position along the connecting pipe outside the bearing box 200, which is beneficial for recycling the coolant.

[0060] As Figure 1 and Figure 2 shown, in this embodiment, a protective shell 211 is fixed to the outside of the first support seat 210, and the protective shell 211 is sleeved outside a plurality of gears (including the first gear 232, the second gear 410, and the third gear), which helps to protect the gears. The first motor 400 is supported and fixed to one end of the bearing box 200 through an L-shaped support block.

[0061] As Figure 7 shown, in this embodiment, one end of the arc-shaped tube 620 is sealed, and two water outlet holes 621 are communicated and opened at the bottom of the arc-shaped tube 620, so that the coolant can fall from the water outlet holes 621 to the outside of the furnace tube.

[0062] Embodiment 2, on the basis of Embodiment 1, in order to grind and polish the outer sides of both ends of the furnace tube and the edges of the spiral fins.

[0063] As Figure 5 and Figure 6 shown, in this embodiment, a second grinding brush roller 300 is meshed and driven on the outer side of the first gear 232. A shaft rod 310 is inserted and fixed in the middle of the second grinding brush roller 300. Both ends of the shaft rod 310 are rotatably connected to the first support seat 210 and the second support seat 220 respectively. A third gear meshed and driven with the first gear 232 at the corresponding position is fixed at one end of the shaft rod 310.

[0064] In this embodiment, referring to Figure 7 , the sliding rod 550 can be received inside the sleeve 540, and then the pin shaft 541 is inserted between the sliding rod 550 and the sleeve 540, so that the first grinding brush roller 530 on the telescopic member does not contact the furnace tube. Then, the first motor 400 drives the second gear 410 to rotate at a high speed. The second gear 410 drives the third gear to rotate at a high speed through the first gear 232, so that the two second grinding brush rollers 300 grind the fin edges of the furnace tube on the outer side of the furnace tube. At this time, the driving mechanism 700 can drive the grinding mechanism 500 to move back and forth above the furnace tube with the arc-shaped tube 620, and at the same time, the bearing box 200 can be moved left and right to add the coolant inside the injection cylinder 610 to the furnace tube. Of course, the hose communicated with the arc-shaped tube 620 can also be directly connected to the pipeline for pumping coolant outside to realize the addition of coolant during grinding.

[0065] In this embodiment, the diameters of both ends of the second grinding brush roller 300 are designed to be larger than the middle position, which is convenient for both ends of the second grinding brush roller 300 to grind the regular cylindrical surfaces at both ends of the furnace tube. And the rotation direction of the furnace tube is opposite to the rotation direction of the second grinding brush roller 300 during the grinding process, further improving the grinding effect.

[0066] In this embodiment, as Figure 2 shown, a U-shaped stop rod is fixed between the two columns 710, and the U-shaped stop rod can prevent the hose from contacting the rotating second grinding brush roller 300.

[0067] As Figure 9 and Figure 11 shown, in the present invention, the grinding mechanism 500 of the present invention can also grind the Figure 11 spiral small fin furnace tube. The first grinding roller 530 is also arranged to rotate between adjacent fins of this type of furnace tube. The fixture 230 drives the furnace tube to rotate. During the grinding process, the driving mechanism 700 can directly drive the first grinding brush roller 530 on the grinding mechanism 500 to move along the axial direction of the furnace tube for grinding. Among them, the spiral small fins will not interfere with the linear movement of the first grinding brush roller 530 because the brush body of the first grinding brush roller 530 itself can undergo extrusion deformation to pass through the spiral small fins. At this time, the outer side of the first grinding brush roller 530 is a regular cylindrical surface as a whole.

[0068] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0069] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A grinding device for the external convex rib fins of a superalloy furnace tube, characterized in that, Comprising: A base (100), with a U-shaped rod (110) fixed above the base (100); A bearing box (200), slidably connected to the base (100), with a first support seat (210) and a second support seat (220) respectively arranged at both ends of the bearing box (200). A fixture (230) is provided at the top of the first support seat (210), and the furnace tube is installed between the first support seat (210) and the second support seat (220) through the fixture (230); A first motor (400), fixed to the first support seat (210), and the first motor (400) can drive the fixture (230) to drive the furnace tube to rotate; A grinding mechanism (500), slidably connected to the U-shaped rod (110), the grinding mechanism (500) includes a support plate (510), and a telescopic member is rotatably connected below the support plate (510), and a first grinding brush roller (530) is fixed to the bottom of the telescopic member; A coolant adding member (600), installed on one side of the base (100), the coolant adding member (600) includes a syringe barrel (610), and the syringe barrel (610) is connected to an arc-shaped tube (620) through a hose; A driving mechanism (700), arranged outside the grinding mechanism (500), the driving mechanism (700) includes a lead screw (720) that can drive the grinding mechanism (500) to move; 2. The high-temperature alloy furnace tube outer convex rib grinding equipment according to claim 1, wherein A support shaft (221) is rotatably connected to the top of the second support seat (220), and a first guide rail (240) that is slidably connected to the second support seat (220) is fixed to one end of the bearing box (200).

3. The grinding equipment for the external convex rib fins of the superalloy furnace tube according to claim 1, characterized in that, A cylinder (120) is fixed to the top surface of the base (100), and the output end of the cylinder (120) is fixedly connected to the bearing box (200).

4. The high-temperature alloy furnace tube outer convex rib grinding equipment according to claim 1, characterized in that, The telescopic member includes a sleeve (540) rotatably connected to the support plate (510), a sliding rod (550) is slidably clamped at the bottom of the sleeve (540), the sliding rod (550) is fixedly connected to the first grinding brush roller (530), and a second motor (520) that can drive the sleeve (540) to rotate is fixed to the top surface of the support plate (510).

5. The high-temperature alloy furnace tube outer convex rib grinding equipment according to claim 1, characterized in that, The driving mechanism (700) further includes two columns (710) both fixedly connected to the base (100), the lead screw (720) is rotatably connected to the columns (710), and a third motor (730) that can drive the lead screw (720) to rotate is fixed to the top of one column (710).

6. The high-temperature alloy furnace tube external convex fin grinding equipment according to claim 1, characterized in that, The fixture (230) includes a support tube (231) rotatably connected to the first support seat (210), a first gear (232) and a rotating block (233) are fixed to one end of the support tube (231), and an adjusting rod (234) that can abut against and fix the furnace tube from the inside of the furnace tube is arranged inside the support tube (231).

7. The high-temperature alloy furnace tube outer convex rib grinding equipment according to claim 6, characterized in that, The adjusting rod (234) includes a connecting column (2341), screw columns (2342) that are screwed to the support tube (231) are arranged at both ends of the connecting column (2341), a frustum block (2343) is fixed to one end of the screw column (2342), and a rotating tube (2344) that is rotatably connected to the support tube (231) is fixed to one end of a screw column (2342).

8. The high-temperature alloy furnace tube outer convex rib grinding equipment according to claim 7, characterized in that, A plurality of movable blocks (235) are evenly abutted and slid on the outer side of the frustum block (2343). An arc-shaped plate (236) is fixed between two opposite movable blocks (235). The movable block (235) is slidably clamped with the support pipe (231).

9. The external convex rib grinding equipment for superalloy furnace tubes according to claim 6, characterized in that Two first gears (232) are meshed and driven. A second gear (410) meshed and driven with the first gear (232) is fixed to the output end of the first motor (400).

10. The high-temperature alloy furnace tube external convex rib grinding equipment according to claim 1 or 9, characterized in that, A second grinding brush roller (300) is meshed and driven on the outer side of the first gear (232). A shaft rod (310) is inserted and fixed in the middle of the second grinding brush roller (300). Both ends of the shaft rod (310) are rotatably connected to the first support seat (210) and the second support seat (220) respectively.

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