Automatic pipeline polishing device for ocean engineering

Abstract

The invention relates to the field of devices for grinding rotating surfaces of workpieces, in particular to an automatic pipeline grinding device for ocean engineering, which comprises a base plate and at least two groups of initial supporting pieces which are parallelly arranged at the top of the base plate from front to back, can lift and are used for placing pipelines; a driving wheel which is used for driving a pipeline to rotate by making contact with the inner wall of the pipeline and can rotate in the front-back direction is rotationally installed on the front baffle, and a rear baffle capable of sliding on the base plate front and back is arranged on the rear side of the base plate. Operation supporting pieces which can synchronously ascend and descend and are used for supporting the pipeline when the pipeline rotates are arranged below the driving wheel and the limiting wheel. A grinding head which can ascend and descend, can move front and back and is used for stretching into the pipeline to grind the inner wall of the pipeline when the pipeline rotates is arranged above the front baffle. The problem that an existing device is poor in adaptability is solved, and the automatic pipeline grinding device for ocean engineering is good in adaptability.

Description

Technical Field

[0001] The present invention relates to the field of devices for grinding the rotating surface of workpieces, and particularly to an automatic pipe grinding device for ocean engineering. Background Art

[0002] The exploration and development of marine mineral resources in ocean engineering are of extremely important significance, which can ensure the diversification of resource supply, promote economic development, and enhance the scientific and technological level.

[0003] Common forms of exploration and development of marine mineral resources are marine oil development. A large number of subsea pipelines for oil transportation are used in marine oil production plants. The pipelines are usually made of metal materials. The inner walls of the just-produced pipelines are usually not very smooth and have defects such as burrs and scale. Therefore, it is necessary to grind the inner walls of the pipelines to reduce the frictional resistance when oil flows in the pipelines and remove the impurities remaining in the pipeline manufacturing process to avoid polluting the oil. After grinding, an anti-corrosion coating is applied to the inner wall of the pipeline, which can form a more uniform anti-corrosion coating or protective film and improve the corrosion resistance of the pipeline.

[0004] Existing automatic pipe grinding devices mainly include a plurality of first supporting wheels with a fixed height for placing the pipeline and driving the pipeline to rotate, and a grinding wheel that can reciprocate along the length direction of the pipeline in the pipeline. The diameter of the grinding wheel matches the inner diameter of the pipeline, and a pressing roller for pressing the pipeline is arranged above the pipeline.

[0005] Existing automatic pipe grinding devices can usually only be used to grind pipelines of one specification, and if the wall thickness of the pipeline fluctuates slightly, the grinding wheel needs to be replaced. Therefore, existing automatic pipe grinding devices have the problem of poor adaptability. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide an automatic pipe grinding device for ocean engineering with better adaptability.

[0007] To solve the above technical problem, an automatic pipe grinding device for ocean engineering provided by the present invention includes a base plate and at least two groups of initial support members that can be lifted and are arranged in parallel from front to back on the top of the base plate for placing the pipeline; a front baffle is fixedly installed on the front side of the base plate, and a driving wheel that can rotate around the front-rear direction and can drive the pipeline to rotate by contacting the inner wall of the pipeline is rotatably installed on the front baffle. A rear baffle that can slide back and forth on the base plate is arranged on the rear side of the base plate, and a limiting wheel for defining the position of the pipeline in the pipeline is arranged on the rear baffle; below both the driving wheel and the limiting wheel, there are operation support members that can be lifted synchronously for supporting the pipeline when the pipeline rotates; above the front baffle, there is a grinding head that can be lifted and can move back and forth for extending into the pipeline to grind the inner wall of the pipeline when the pipeline rotates.

[0008] As a further improvement of the present invention: The initial support member includes a left supporting wheel member and a right supporting wheel member symmetrically arranged on the left and right sides of the top of the substrate. Both the left supporting wheel member and the right supporting wheel member include a first cylinder body with a single-side opening facing upward and vertically fixedly installed on the top of the substrate. A first supporting wheel bracket is slidably sleeved outside the first cylinder body. A receiving groove for receiving the first cylinder body is formed at the bottom of the first supporting wheel bracket. A first supporting wheel capable of rotating around the front-rear direction is rotatably installed at the top of the first supporting wheel bracket. A first return spring is vertically fixedly installed between the top of the bottom surface of the first cylinder body and the bottom of the receiving groove.

[0009] As a further improvement of the present invention: A horizontal first motor is arranged beside the front baffle. The output shaft of the first motor is in transmission connection with the wheel shaft of the driving wheel.

[0010] As a further improvement of the present invention: A horizontal cross bar capable of driving the rear baffle to slide forward or backward on the top of the substrate when rotating around the front-rear direction is arranged above the substrate. A horizontal second motor is arranged on the front side of the front baffle. The output shaft of the second motor is in transmission connection with the cross bar.

[0011] As a further improvement of the present invention: A left telescopic rod and a right telescopic rod are vertically slidably installed between the front baffle and the rear baffle, which can drive the working support member to rise when moving towards each other and drive the working support member to descend when moving away from each other; A horizontal first telescopic member for driving the left telescopic rod to move left and right and a horizontal second telescopic member for driving the right telescopic rod to move left and right are installed on the top of the substrate; The working support member includes a plurality of mounting grooves hinged end to end from left to right. Second supporting wheels for supporting the pipeline are rotatably installed in the mounting grooves; The mounting groove located on the leftmost side is rotatably connected to the left telescopic rod through a left connecting block, and the mounting groove located on the rightmost side is rotatably connected to the right telescopic rod through a right connecting block.

[0012] As a further improvement of the present invention: A horizontal support plate is vertically fixedly installed on the front side of the front baffle. A vertical first lead screw is rotatably installed through the top of the support plate. The first lead screw is vertically rotatably installed between the top plate and the bottom plate of the frame. The top plate of the frame is located above the support plate. Column through holes for passing through the two columns of the frame are formed on the support plate; A lead screw nut matching the first lead screw and capable of driving the first lead screw to move up and down when rotating is arranged on the first lead screw. The lead screw nut is rotatably installed at the bottom of the support plate. A vertical third motor is fixedly installed at the bottom of the support plate. The output shaft of the third motor is in transmission connection with the lead screw nut.

[0013] Preferably, two mutually parallel nut seats are fixedly installed on the top of the top plate of the frame from front to back. A screw rod that can rotate around the front-back direction and can move back and forth in the two nut seats during rotation is rotatably installed in the two nut seats. A counterweight block is sleeved outside one end of the screw rod close to the driving wheel. Two limiting plates are vertically installed on the top of the top plate of the frame, and the two limiting plates are respectively located on the front and back sides of the nut; a horizontal fourth motor is fixedly installed at the bottom of the support plate, and the output shaft of the fourth motor is in transmission connection with the screw rod.

[0014] Preferably, an arc-shaped plate is arranged above the counterweight block. Long sliders that can slide up and down are installed on both the left and right sides of the arc-shaped plate. Small frames for the two long sliders to slide up and down are fixedly installed on the top of the counterweight block; at least two second return springs are vertically installed between the top of the long slider and the bottom of the top plate of the small frame, and the grinding head is fixedly installed on the top of the arc-shaped plate through a support block.

[0015] Preferably, third idler wheel brackets are installed on the top of the long sliders. Holes for the third idler wheel brackets to pass through are formed in the top plate of the small frame, and two horizontal third idler wheels arranged in a straight line from front to back are installed in the third idler wheel brackets.

[0016] As a further improvement of the present invention: A plurality of auxiliary rotating wheels that can facilitate the rotation of the pipeline are installed on the surface of the front baffle and the rear baffle that are used to contact the pipeline.

[0017] The beneficial effects of the present invention are as follows: An automatic pipeline grinding device for ocean engineering provided by the present invention has good adaptability.

[0018] Firstly, by setting the initial support member, a temporary support point is provided for subsequent precise adjustment of the height of the pipeline. The cooperation of the rear baffle and the front baffle that can slide back and forth can reduce the probability of the pipeline moving in the front-back direction during processing. The working support members that can be lifted synchronously and support the pipeline when the pipeline rotates support different pipelines with different diameters. At the same time, the cooperation of the working support members with the driving wheel and the limiting wheel can also support pipelines with different wall thicknesses. Finally, the grinding head that can be lifted and can move back and forth and is used to extend into the pipeline to grind the inner wall of the pipeline when the pipeline rotates realizes the grinding of the inner wall of the pipeline, greatly improving the adaptability to pipelines of different sizes and making the device have good adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall structure of another angle of the present invention.

[0021] Figure 3 It is a top view of the present invention.

[0022] Figure 4 This is the assembly drawing of the substrate, support plate, etc. in the present invention.

[0023] Figure 5 This is the perspective schematic diagram of the overall structure of the rear baffle in the present invention.

[0024] Figure 6 This is the schematic diagram of the overall structure of the cross bar in the present invention.

[0025] Figure 7 This is the schematic diagram of the positional relationship between the working support member and the initial support member, etc. in the present invention.

[0026] Figure 8 This is the schematic diagram of the overall structure of the working support member in the present invention.

[0027] Figure 9 This is the schematic diagram of the overall structure of the left connecting block in the present invention.

[0028] Figure 10 This is the assembly drawing of the rear baffle, cross bar, etc. in the present invention.

[0029] Figure 11 This is the assembly drawing of the driving wheel, first motor, rear baffle, cross bar, etc. in the present invention.

[0030] Figure 12 This is the schematic diagram of the overall structure of the grinding head, etc. in the present invention.

[0031] Figure 13 This is the schematic diagram of the overall structure of the grinding head, counterweight, etc. in the present invention.

[0032] Figure 14 This is the partial sectional view schematic diagram of the front baffle, support plate, first lead screw, etc. in the present invention.

[0033] Figure 15 This is the partial sectional view schematic diagram of the support plate, first lead screw, third motor in the present invention.

[0034] Figure 16 This is the schematic diagram of the overall structure of the screw, fourth motor, etc. in the present invention.

[0035] Figure 17 This is the schematic diagram of the overall structure of the screw, fourth motor, counterweight, etc. in the present invention.

[0036] Figure 18 This is the schematic diagram of the partial structure of the present invention.

[0037] The names of the components corresponding to the respective marks in the above-mentioned drawings are: 101, substrate; 102, front baffle; 103, rear baffle; 1031, hemispherical protrusion; 1032, universal ball; 104, auxiliary runner.

[0038] 2. Initial support member; 201. First cylinder; 202. First idler support; 203. First idler; 204. First return spring.

[0039] 301. Driving wheel; 302. Limiting wheel; 303. First motor; 304. First gear; 305. Second gear.

[0040] 4. Operating support member; 401. Second idler; 402. Installation groove; 403L. Left connecting block; 403R. Right connecting block.

[0041] 501. Grinding head; 502. Arc plate; 503. Long slider; 504. Small frame; 505. Second return spring; 506. Support block; 507. Third idler.

[0042] 601. Cross bar; 602. Second motor; 603. Third gear; 604. First transmission rod; 605. Fourth gear; 606. Fifth gear; 607. Second transmission rod; 608. Sixth gear; 609. Seventh gear; 6010. Eighth gear.

[0043] 701L. Left telescopic rod; 701R. Right telescopic rod; 702. First telescopic member; 703. Second telescopic member.

[0044] 801. Support plate; 802. First lead screw; 803. Frame; 8031. Limiting plate; 804. Lead screw nut; 805. Third motor; 806. First pulley; 807. First belt.

[0045] 901. Nut seat; 902. Screw; 903. Counterweight; 904. Fourth motor; 905. Second pulley; 906. Third pulley; 907. Second belt; 908. Fourth pulley; 909. Fifth pulley; 9010. Third belt; 9011. Sixth pulley; 9012. Seventh pulley; 9013. Fourth belt; 9014. Eighth pulley; 9015. Nut; 9016. Fifth belt; 9017. First connecting rod; 9018. Second connecting rod. Detailed implementation manners

[0046] The following further describes in detail the detailed implementation manners of the present invention with reference to the accompanying drawings.

[0047] The orientation words such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom" in the present invention are all based on Figure 3 the direction defined by the cross-shaped orientation mark in. The orientation words in the present invention are all described based on this definition and do not change the orientation they represent with the change of the angle of the drawing.

[0048] Definitions of related terms involved in the present invention: (1) Offshore engineering: refers to new construction, reconstruction, and expansion projects aimed at developing, utilizing, protecting, and restoring marine resources, and the main body of the project is located seaward of the coastline. Generally, the main content of offshore engineering can be divided into two major parts: resource development technology and equipment facility technology, specifically including: reclamation, offshore dike projects, artificial islands, offshore and subsea material storage facilities, cross-sea bridges, subsea tunnels, subsea pipelines, subsea electrical (optical) cables, exploration and development of marine mineral resources and their affiliated projects, marine energy development and utilization projects such as offshore tidal power stations, wave power stations, and temperature difference power stations, large-scale seawater aquaculture farms, artificial fish reef projects, seawater comprehensive utilization projects such as salt pans and seawater desalination, offshore entertainment and sports, landscape development projects, and other offshore engineering projects stipulated by the national marine authorities in conjunction with the environmental protection authorities.

[0049] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 18 As shown in

[0050] As Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 10 , Figure 11 , Figure 18As shown, a front baffle 102 is fixedly installed on the front side of the base plate 101, and a driving wheel 301 that can rotate in the front and rear directions and is used to drive the pipeline to rotate by contacting the inner wall of the pipeline is rotatably installed on the front baffle 102. A rear baffle 103 that can slide forward and backward on the base plate 101 is arranged on the rear side of the base plate 101, and a limiting wheel 302 for limiting the position of the pipeline in the pipeline is arranged on the rear baffle 103; a horizontal first motor 303 is arranged next to the front baffle 102, and the output shaft of the first motor 303 is connected to the axle of the driving wheel 301 through a first transmission member. The first transmission member includes a first gear 304 fixedly sleeved on the output shaft of the first motor 303, and a second gear 305 meshing with the first gear 304 is fixedly sleeved on one end of the axle of the driving wheel 301 close to the first gear 304. A horizontal cross bar 601 is arranged above the base plate 101, which can drive the rear baffle 103 to slide forward or backward on the top of the base plate 101 when rotating in the front-back direction. A horizontal second motor 602 is arranged on the front side of the front baffle 102, and the output shaft of the second motor 602 is connected to the cross bar 601 through a second transmission member. Two mutually parallel cross bar brackets for rotating the cross bar 601 are vertically installed on the top of the base plate 101. Two mutually parallel rear baffle chutes are provided on the top of the base plate 101, and the cross section of the rear baffle chutes is a convex-shaped structure. Two sliders that can slide in the two rear baffle chutes are arranged on the bottom surface of the rear baffle 103 that is used to contact the top of the base plate 101; a plurality of universal ball bearings 1032 are rotatably installed on the bottom surface of the rear baffle 103 that is used to contact the ground. The cross bar 601 is provided with an arc-shaped spiral groove, and the rear baffle 103 is provided with a rod-passing hole for the cross bar 601 to pass through. Two hemispherical protrusions 1031 matching the arc-shaped spiral groove are fixedly mounted on the inner wall of the rod-passing hole. The second transmission member includes a third gear 603 fixedly sleeved on the output shaft of the second motor 602, a horizontal first transmission rod 604 is arranged next to the second motor 602, a fourth gear 605 meshing with the third gear 603 is fixedly installed on one end of the first transmission rod 604 close to the third gear 603, a fifth gear 606 is fixedly installed on one end of the first transmission rod 604 away from the third gear 603, a horizontal second transmission rod 607 is arranged above the fifth gear 606, a sixth gear 608 meshing with the fifth gear 606 is fixedly installed on one end of the second transmission rod 607 close to the fifth gear 606, a seventh gear 609 is fixedly installed on one end of the cross bar 601 close to the second transmission rod 607, and an eighth gear 6010 meshing with the seventh gear 609 is fixedly installed on one end of the second transmission rod 607 away from the fifth gear 606. A plurality of auxiliary wheels 104 for facilitating the rotation of the pipeline are installed on the surface of the front baffle 102 and the rear baffle 103 for contacting the pipeline, and the axles of the auxiliary wheels 104 are perpendicular to the front-to-back direction and parallel to the left-to-right direction.A plurality of auxiliary runners 104 on the front baffle 102 are arranged in a radial shape along the edge of the driving wheel 301, and a plurality of auxiliary runners 104 on the rear baffle 103 are arranged in a radial shape along the edge of the limiting wheel 302. The plurality of auxiliary runners 104 are all located below the driving wheel 301 or the limiting wheel 302.

[0051] Such as Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 , Figure 9 , Figure 18As shown, below the driving wheel 301 and the limiting wheel 302, there are working supports 4 that can be lifted and lowered synchronously and are used to support the pipe when the pipe rotates; between the front baffle 102 and the rear baffle 103, there are vertically slidably installed a left telescopic rod 701L and a right telescopic rod 701R that can drive the working support 4 to rise when moving towards each other and drive the working support 4 to descend when moving away from each other. On the front baffle 102 and the rear baffle 103, there are telescopic rod chutes for the left telescopic rod 701L and the right telescopic rod 701R to slide left and right. The left telescopic rod 701L is located on the left side of the base plate 101, and the right telescopic rod 701R is located on the right side of the base plate 101. Both the left telescopic rod 701L and the right telescopic rod 701R include a cylindrical outer tube with a single-sided opening and an inner tube that can reciprocate along the length direction of the outer tube in the cavity of the outer tube; on the top of the base plate 101, there is a horizontal first telescopic member 702 for driving the left telescopic rod 701L to move left and right and a horizontal second telescopic member 703 for driving the right telescopic rod 701R to move left and right; the working support 4 includes a plurality of mounting grooves 402 hinged end to end from left to right. In the mounting grooves 402, there are rotatably installed second supporting wheels 401 for supporting the pipe; the mounting groove 402 located on the leftmost side is rotatably connected to the left telescopic rod 701L through a left connecting block 403L, and the mounting groove 402 located on the rightmost side is rotatably connected to the right telescopic rod 701R through a right connecting block 403R. At the tail of the mounting groove 402, there are a pair of parallel small straight plates, and at the head, there is a bushing that can extend between the pair of small straight plates. The boss of one mounting groove 402 and the pair of small straight plates of the mounting groove 402 adjacent to this mounting groove 402 are rotationally connected through a first small rotating shaft. In particular, the mounting groove 402 located on the leftmost side only has a pair of small straight plates at the tail, and the mounting groove 402 located on the rightmost side only has a bushing at the head. Through such a design, the arc of the working support 4 can be changed following the change of the pipe size to wrap and adapt to pipes of different sizes. At the bottom of the mounting groove 402 located on the leftmost side and the mounting groove 402 located on the rightmost side, there are two small support plates vertically installed. Both the left connecting block 403L and the right connecting block 403R include straight blocks. At one end of the straight block close to the left telescopic rod 701L or the right telescopic rod 701R, there is a sleeve fixedly installed that can be rotatably sleeved on the left telescopic rod 701L and the right telescopic rod 701R. At one end of the straight block close to the working support 4, there is a second small rotating shaft fixedly installed that can be rotatably installed between the two small support plates.

[0052] As Figure 1 , Figure 2 , Figure 3 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18As shown, a grinding head 501 which can be raised and lowered and can move forward and backward is arranged above the front baffle 102 and is used to extend into the pipeline and grind the inner wall of the pipeline when the pipeline rotates. The grinding head 501 is a semi-cylindrical structure, and its curved surface is used to contact the pipeline to grind the inner wall of the pipeline; a horizontal support plate 801 is vertically fixedly installed on the front side of the front baffle 102, a protection box is fixedly installed between the support plate 801 and the front baffle 102, and a box door is arranged on the box body, and a vertical first lead screw 802 is rotatably installed through the top of the support plate 801, and the first lead screw 802 is vertically rotatably installed on the frame The top plate of the frame 803 is located above the support plate 801 between the top plate and the bottom plate of the frame 803, and the support plate 801 is provided with a column through hole for two columns of the frame 803 to pass through; the first lead screw 802 is provided with a lead screw nut 804 that matches the first lead screw 802 and can drive the first lead screw 802 to move up and down when rotating, and the lead screw nut 804 is rotatably mounted on the bottom of the support plate 801, and a vertical third motor 805 is fixedly installed at the bottom of the support plate 801, and the output shaft of the third motor 805 is connected to the lead screw nut 804 through a third transmission member. The third transmission member includes a first pulley 806 fixedly sleeved on the output shaft of the third motor 805, and the first pulley 806 is connected to the lead screw nut 804 through a first belt 807, and a wheel groove for accommodating the first belt 807 is provided outside the lead screw nut 804. Two parallel nut seats 901 are fixedly installed on the top of the top plate of the frame 803 from front to back, and screws 902 that can rotate in the front and rear directions and can move forward and backward in the two nut seats 901 when rotating are installed in the two nut seats 901 together. A counterweight block 903 is connected to the outer sleeve of the end of the screw 902 close to the driving wheel 301, and a nut 9015 is rotatably connected to the outside of the screw 902. Two limit plates 8031 are vertically installed on the top of the top plate of the frame 803, and the two limit plates 8031 are respectively located on the front and rear sides of the nut 9015.A horizontal fourth motor 904 is fixedly installed at the bottom of the support plate 801, and the output shaft of the fourth motor 904 is in transmission connection with the screw 902 through a fourth transmission member; the fourth transmission member includes a second pulley 905 fixedly sleeved on the output shaft of the fourth motor 904. A horizontal first shaft is rotatably installed on the top of the support plate 801 through a first shaft mounting bracket. A third pulley 906 is fixedly sleeved on one end of the first shaft close to the second pulley 905. The second pulley 905 and the third pulley 906 are in transmission connection through a second belt 907. A second belt passing hole for the second belt 907 to pass through is formed in the support plate 801. A fourth pulley 908 is fixedly sleeved on the end of the first shaft far from the second pulley 905. A horizontal second shaft is arranged above the first shaft. A fifth pulley 909 is fixedly sleeved on one end of the second shaft close to the fourth pulley 908. The fifth pulley 909 and the fourth pulley 908 are in transmission connection through a third belt 9010. A sixth pulley 9011 is fixedly sleeved on the end of the second shaft far from the fourth pulley 908. A horizontal third shaft is rotatably installed on one side of the top plate of the frame 803 close to the second shaft. The third shaft is located below the second shaft. The first shaft, the second shaft and the third shaft are all parallel to each other. A seventh pulley 9012 is fixedly sleeved on one end of the third shaft close to the sixth pulley 9011. The sixth pulley 9011 and the seventh pulley 9012 are in transmission connection through a fourth belt 9013. An eighth pulley 9014 is fixedly sleeved on the end of the third shaft far from the sixth pulley 9011. The eighth pulley 9014 and the nut 9015 are in transmission connection through a fifth belt 9016. A belt receiving groove for accommodating the fifth belt 9016 is formed on the outside of the nut 9015; one end of the first shaft close to the second pulley 905 is rotatably connected to one end of the second shaft far from the fourth pulley 908 through a first connecting rod 9017, and one end of the second shaft far from the fourth pulley 908 is in transmission connection with one end of the third shaft far from the sixth pulley 9011 through a second connecting rod 9018. An arc-shaped plate 502 is arranged above the counterweight 903. Long sliders 503 capable of sliding up and down are installed on both the left and right sides of the arc-shaped plate 502. Small frames 504 for the two long sliders 503 to slide up and down respectively are fixedly installed on the top of the counterweight 903; at least two second return springs 505 are vertically installed between the top of the long slider 503 and the bottom of the top plate of the small frame 504. The grinding head 501 is fixedly installed on the top of the arc-shaped plate 502 through a support block 506. Third support wheel brackets are installed on the tops of the long sliders 503. A hole for the third support wheel bracket to pass through is formed in the top plate of the small frame 504. Two horizontal third support wheels 507 arranged in a straight line from front to back are installed in the third support wheel bracket. The axle of the third support wheel 507 is perpendicular to the left and right directions.

[0053] The working principle of the present invention is as follows: the pipeline is placed on two initial supports 2, the bottom of the pipeline contacts the tops of four first supporting wheels 203, and under the action of the gravity of the pipeline, the first supporting wheel bracket 202 slides downward on the first cylinder 201, and the first return spring 204 is compressed.

[0054] Initially, the distance between the rear baffle 103 and the front baffle 102 is the farthest. When the height of the initial support member 2 is adjusted, the second motor 602 is started, and the output shaft of the second motor 602 drives the third gear 603 to rotate, the third gear 603 drives the fourth gear 605 to rotate, the fourth gear 605 drives the fifth gear 606 to rotate through the first transmission rod 604, the fifth gear 606 drives the sixth gear 608 to rotate, the sixth gear 608 drives the eighth gear 6010 to rotate through the second transmission rod 607, and the eighth gear 6010 drives the cross bar 601 through the seventh gear 609. The two cross bar brackets rotate in the front-to-back direction, and the tangential direction component of the arc-shaped spiral groove pushes the hemispherical protrusion 1031 located in the arc-shaped spiral groove, so that the hemispherical protrusion 1031 drives the rear baffle 103 to move forward, and the two sliders slide forward in the two rear baffle grooves respectively, and the movement of the rear baffle 103 is guided by the two sliders and the two rear baffle grooves, which can limit the circumferential rotation of the rear baffle 103, and the universal ball 1032 rotates in contact with the ground to reduce the resistance of the rear baffle 103 when moving, until the front side of the pipe is close to the front baffle 102 and the rear side of the pipe is close to the rear baffle 103.

[0055] Initially, the working support member 4 is located at the lowest point of its travel. When the rear baffle 103 is adjusted to a suitable position, the first telescopic member 702 and the second telescopic member 703 are started, and the telescopic ends of the first telescopic member 702 and the second telescopic member 703 are shortened. The left telescopic rod 701L and the right telescopic rod 701R slide toward each other between the front baffle 102 and the rear baffle 103. The left connecting block 403L and the right connecting block 403R gradually rise away from the end of the left telescopic rod 701L or the right telescopic rod 701R, driving each mounting slot 402 to rise. After the inner wall at the bottom of the pipeline contacts the driving wheel 301, the middle installation slot 402 will not continue to rise, and the installation slots 402 on the left and right sides continue to rise, and relative rotation occurs between the installation slots 402 around the first small rotating shaft, which is perpendicular to the left and right directions, until each installation slot 402 contacts the outer surface of the pipeline, and each installation slot 402 is in an arc-shaped structure that fits the outer surface of the pipeline. At this time, the height of the operating support 4 is adjusted, and the telescopic ends of the first telescopic member 702 and the second telescopic member 703 stay at this length. When the pipeline is supported by the operating support 4, its bottom leaves the top of the initial support 2, and the first return spring 204 gradually returns to the natural extension state, driving the first wheel bracket 202 to slide upward on the first cylinder 201 and return to the initial position.

[0056] At this time, the inner wall at the bottom on the front side of the pipeline is in contact with the bottom of the driving wheel 301, and the inner wall at the bottom on the rear side of the pipeline is in contact with the bottom of the limiting wheel 302. Initially, the frame 803 is at the lowest point of the stroke. After the pipeline is fixed, the third motor 805 is started. The output shaft of the third motor 805 drives the first pulley 806 to rotate. The first pulley 806 drives the lead screw nut 804 to rotate through the first belt 807. As the lead screw nut 804 rotates, the first lead screw 802 continuously rises, driving the frame 803 to rise. Thus, the counterweight 903 is driven to rise through the frame 803, and finally the grinding head 501 is driven to rise. After reaching the expected position, it stays at this position. The top plate and bottom plate of the frame 803 can play a role in limiting the stroke, and the cooperation of the holes between the columns can play a guiding role. When the top of the grinding head 501 is in contact with the inner wall at the top of the pipeline, the grinding head 501 will be pressed downward, thereby driving the arc plate 502 to move downward. The arc plate 502 drives the two long sliders 503 to slide downward in the small frame 504, and the second return spring 505 gradually elongates. However, the second return spring 505 always wants to return to its initial natural elongation state. Therefore, an upward force will be exerted on the long slider 503. Thus, under the action of the second return spring 505, the top of the grinding head 501 can always closely adhere to the inner wall at the top of the pipeline. Even if the inner wall of the pipeline is uneven, the grinding head 501 will not idle without grinding, ensuring more uniform grinding of the inner wall. The third supporting wheel 507 can closely adhere to the inner wall of the pipeline and play a role in assisting the rotation of the pipeline.

[0057] Initially, the grinding head 501 is at the forefront of its stroke. When it is necessary to grind the inner wall of the pipeline, the first motor 303 is started. The first motor 303 drives the first gear 304 to rotate. The first gear 304 drives the rotation of the axle of the driving wheel 301 through the second gear 305, so that the driving wheel 301 rotates around the front-back direction, driving the pipeline to rotate around the front-back direction on the working support 4. When the pipeline rotates, the front end and the rear end of the pipeline are respectively in contact with a plurality of auxiliary rotating wheels 104 on the front baffle 102 and the rear baffle 103. The auxiliary rotating wheels 104 can reduce the friction between the pipeline and the front baffle 102 and the rear baffle 103, facilitating the rotation of the pipeline. Subsequently, the fourth motor 904 is started. The fourth motor 904 drives the second pulley 905 to rotate. The second pulley 905 drives the third pulley 906 to rotate through the second belt 907. The third pulley 906 drives the first axle to rotate, thereby driving the fourth pulley 908 to rotate. The fourth pulley 908 drives the fifth pulley 909 to rotate through the third belt 9010. The fifth pulley 909 drives the second axle to rotate, thereby driving the sixth pulley 9011 to rotate. The sixth pulley 9011 drives the seventh pulley 9012 to rotate through the fourth belt 9013. The seventh pulley 9012 drives the third axle to rotate, thereby driving the eighth pulley 9014 to rotate. The eighth pulley 9014 drives the nut 9015 to rotate through the fifth belt 9016. Under the limiting action of the two limiting plates 8031, the nut 9015 only rotates in place. It drives the screw 902 to move backward while rotating in the nut 9015, the two nut seats 901 and the counterweight 903. The counterweight 903 has a certain weight. The screw 902 can only rotate in the counterweight 903 and cannot drive the counterweight 903 to rotate. The grinding head 501 is always located on the top of the counterweight 903. The grinding head 501 gradually moves backward following the counterweight 903, grinding the inner wall of the pipeline from front to back. When it is necessary to move the grinding head 501 forward, it is only necessary to control the output shaft of the fourth motor 904 to rotate in the opposite direction to just now.

[0058] After the grinding is completed, the second motor 602 is started to make the output shaft of the second motor 602 rotate in the opposite direction to the initial adjustment, so that the rear baffle 103 moves backward and gradually returns to the initial position. The third motor 805 is started to reverse and drive the frame 803 to descend. When it is necessary to lower the height of the working support 4, the telescopic ends of the first telescopic member 702 and the second telescopic member 703 are controlled to extend. Subsequently, the rear baffle 103 is moved backward to restore the device to the initial state.

Claims

1. An automatic pipe grinding device for ocean engineering, characterized in that, It includes a substrate (101) and at least two groups of initial support members (2) which are arranged in parallel from front to back on the top of the substrate (101) and can be lifted and are used for placing pipes; A front baffle (102) is fixedly installed on the front side of the substrate (101). A driving wheel (301) which can rotate around the front-back direction and is used for driving the pipe to rotate by contacting the inner wall of the pipe is rotatably installed on the front baffle (102). A rear baffle (103) which can slide back and forth on the substrate (101) is arranged on the rear side of the substrate (101). A limiting wheel (302) which is used for defining the position of the pipe in the pipe is arranged on the rear baffle (103); Below both the driving wheel (301) and the limiting wheel (302), there are operation support members (4) which can be lifted synchronously and are used for supporting the pipe when the pipe rotates; Above the front baffle (102), there is a grinding head (501) which can be lifted and can move back and forth and is used for extending into the pipe to grind the inner wall of the pipe when the pipe rotates.

2. The automatic pipe grinding device for ocean engineering according to claim 1, characterized in that, The initial support member (2) includes a left support wheel member and a right support wheel member which are symmetrically arranged on the left and right sides of the top of the substrate (101). Both the left support wheel member and the right support wheel member include a first cylinder body (201) which is vertically and fixedly installed on the top of the substrate (101) and has a single-side opening facing upwards. A first support wheel bracket (202) is slidably sleeved outside the first cylinder body (201). A receiving groove for receiving the first cylinder body (201) is formed at the bottom of the first support wheel bracket (202). A first support wheel (203) which can rotate around the front-back direction is rotatably installed on the top of the first support wheel bracket (202). A first return spring (204) is vertically and fixedly installed between the top of the bottom surface of the first cylinder body (201) and the bottom of the receiving groove.

3. An automatic pipe grinding device for ocean engineering according to claim 1, characterized in that, A horizontal first motor (303) is arranged beside the front baffle (102). The output shaft of the first motor (303) is in transmission connection with the wheel shaft of the driving wheel (301).

4. An automatic pipe grinding device for ocean engineering according to any one of claims 1 to 3, characterized in that, Above the substrate (101), there is a horizontal cross bar (601) which can drive the rear baffle (103) to slide forward or backward on the top of the substrate (101) when rotating around the front-back direction. A horizontal second motor (602) is arranged on the front side of the front baffle (102). The output shaft of the second motor (602) is in transmission connection with the cross bar (601).

5. An automatic pipe grinding device for ocean engineering according to any one of claims 1 to 3, characterized in that, A left telescopic rod (701L) and a right telescopic rod (701R) which can drive the operation support member (4) to rise when moving towards each other and drive the operation support member (4) to descend when moving away from each other are vertically and slidably installed between the front baffle (102) and the rear baffle (103); On the top of the substrate (101), a horizontal first telescopic member (702) for driving the left telescopic rod (701L) to move left and right and a horizontal second telescopic member (703) for driving the right telescopic rod (701R) to move left and right are installed; The supporting member (4) for operation includes a plurality of mounting grooves (402) hinged end to end from left to right. A second supporting wheel (401) for supporting the pipeline is rotatably mounted in each mounting groove (402). The mounting groove (402) located on the leftmost side is rotatably connected to the left telescopic rod (701L) through a left connecting block (403L), and the mounting groove (402) located on the rightmost side is rotatably connected to the right telescopic rod (701R) through a right connecting block (403R).

6. An automatic pipe grinding device for ocean engineering according to any one of claims 1 to 3, characterized in that, A horizontal supporting plate (801) is vertically and fixedly mounted on the front side of the front baffle (102). A vertical first lead screw (802) is rotatably mounted through the top of the supporting plate (801). The first lead screw (802) is vertically rotatably mounted between the top plate and the bottom plate of the frame (803). The top plate of the frame (803) is located above the supporting plate (801). Column passing holes for the two columns of the frame (803) to pass through are formed in the supporting plate (801). A lead screw nut (804) that matches the first lead screw (802) and can drive the first lead screw (802) to move up and down during rotation is arranged on the first lead screw (802). The lead screw nut (804) is rotatably mounted at the bottom of the supporting plate (801). A vertical third motor (805) is fixedly mounted at the bottom of the supporting plate (801). The output shaft of the third motor (805) is in transmission connection with the lead screw nut (804).

7. The automatic pipe grinding device for ocean engineering according to claim 6, characterized in that, Two mutually parallel nut seats (901) are fixedly mounted on the top of the top plate of the frame (803) from front to back. A screw rod (902) that can rotate around the front-back direction and can move back and forth in the two nut seats (901) during rotation is rotatably mounted in the two nut seats (901). A counterweight block (903) is sleeved outside one end of the screw rod (902) close to the driving wheel (301). Two limiting plates (8031) are vertically mounted on the top of the top plate of the frame (803). The two limiting plates (8031) are respectively located on the front and back sides of the nut (9015). A horizontal fourth motor (904) is fixedly mounted at the bottom of the supporting plate (801). The output shaft of the fourth motor (904) is in transmission connection with the screw rod (902).

8. An automatic pipe grinding device for ocean engineering according to claim 7, characterized in that, An arc-shaped plate (502) is arranged above the counterweight block (903). Long sliders (503) that can slide up and down are mounted on both the left and right sides of the arc-shaped plate (502). A small frame (504) for the two long sliders (503) to slide up and down respectively is fixedly mounted on the top of the counterweight block (903). At least two second return springs (505) are vertically mounted between the top of the long slider (503) and the bottom of the top plate of the small frame (504). The grinding head (501) is fixedly mounted on the top of the arc-shaped plate (502) through a support block (506).

9. The automatic pipe grinding device for ocean engineering according to claim 8, characterized in that, Third supporting wheel brackets are mounted on the top of the long sliders (503). Holes for the third supporting wheel brackets to pass through are formed in the top plate of the small frame (504). Two horizontal third supporting wheels (507) arranged in a straight line from front to back are mounted in the third supporting wheel brackets.

10. An automatic pipe grinding device for ocean engineering according to any one of claims 1 to 3, characterized in that, On the surfaces of the front baffle (102) and the rear baffle (103) that are used to contact the pipeline, a plurality of auxiliary rotating wheels (104) that can facilitate the rotation of the pipeline are installed.

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