Automatic polishing device for marine engineering pipeline

Abstract

The application relates to the field of devices for grinding rotating surfaces of workpieces, in particular to an automatic pipe grinding device for ocean engineering, which comprises a base plate and at least two groups of initial supporting pieces capable of lifting and used for placing pipes and arranged in parallel on the top of the base plate from front to back; a driving wheel capable of rotating around the front-back direction is rotatably arranged on the front baffle and used for driving the pipe to rotate by contacting the inner wall of the pipe, the rear side of the base plate is provided with a rear baffle capable of sliding on the base plate; the driving wheel and the limiting wheel are both provided with working supporting pieces capable of synchronous lifting and used for supporting the pipe when the pipe rotates; the upper side of the front baffle is provided with a grinding head capable of lifting and moving forward and backward and used for grinding the inner wall of the pipe when the pipe rotates. The existing device has the problem of poor adaptability, and the automatic pipe grinding device for ocean engineering provided by the application has good adaptability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of device for grinding rotating surface of workpiece, in particular to an automatic pipe grinding device for ocean engineering. BACKGROUND

[0002] The exploration and development of marine mineral resources in ocean engineering has extremely important significance, which can ensure the diversification of resource supply, promote economic development and improve the level of science and technology.

[0003] The common form of marine mineral resource exploration and development is marine oil development, and a large number of offshore pipelines for oil transportation will be used in offshore oil production plants. The pipeline is usually made of metal material, and the inner wall of the newly produced pipeline is usually not smooth, with burrs, scale and other defects. Therefore, the inner wall of the pipeline needs to be ground to reduce the frictional resistance of oil flowing in the pipeline and remove impurities remaining in the pipeline manufacturing process to avoid pollution to oil. After grinding, a corrosion-resistant coating is applied to the inner wall of the pipeline, which can form a more uniform corrosion-resistant coating or protective film to improve the corrosion resistance of the pipeline.

[0004] The existing automatic pipe grinding device mainly includes a plurality of first supporting wheels for placing and rotating the pipeline, which are fixed in height, and a grinding wheel that can reciprocate along the length direction of the pipeline. The diameter of the grinding wheel matches the inner diameter of the pipeline, and a pressing roller is arranged above the pipeline to press the pipeline.

[0005] The existing automatic pipe grinding device can usually only be used to grind one size of pipeline, and if the wall thickness of the pipeline fluctuates, the grinding wheel needs to be replaced. Therefore, the existing automatic pipe grinding device has poor adaptability. SUMMARY

[0006] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide an automatic pipe grinding device for ocean engineering with good adaptability.

[0007] To solve the above technical problems, the present application provides an automatic pipe grinding device for ocean engineering, which comprises a base plate and at least two groups of initial supporting members arranged in parallel from front to back on the top of the base plate and capable of lifting for placing the pipeline; a front baffle is fixedly installed on the front side of the base plate, a driving wheel capable of rotating around the front-back direction for driving the pipeline to rotate by contacting the inner wall of the pipeline is rotatably installed on the front baffle, a rear baffle capable of sliding forward and backward on the base plate is arranged on the rear side of the base plate, and a limiting wheel for limiting the position of the pipeline in the pipeline is arranged on the rear baffle; the driving wheel and the limiting wheel are both provided with working supporting members capable of synchronous lifting for supporting the pipeline during rotation of the pipeline; a grinding head capable of lifting and moving forward and backward is arranged above the front baffle for grinding the inner wall of the pipeline during rotation of the pipeline.

[0008] As a further improvement of the application: the initial support includes a left roller support and a right roller support symmetrically arranged on the left and right sides of the top of the base plate, the left roller support and the right roller support each include a first cylinder body vertically fixedly installed on the top of the base plate, the first cylinder body is outwardly slidably sleeved with a first roller support, the bottom of the first roller support is provided with an accommodation groove for accommodating the first cylinder body, the top of the first roller support is rotatably installed with a first roller capable of rotating around the front-back direction, and a first return spring is vertically fixedly installed between the top of the bottom surface of the first cylinder body and the groove bottom of the accommodation groove.

[0009] As a further improvement of the application: a horizontal first motor is arranged beside the front baffle, and an output shaft of the first motor is in transmission connection with an axle of the driving wheel.

[0010] As a further improvement of the application: a horizontal cross rod capable of driving the rear baffle to slide forward or backward on the top of the base plate when rotating around the front-back direction is arranged above the base plate, a horizontal second motor is arranged on the front side of the front baffle, and an output shaft of the second motor is in transmission connection with the cross rod.

[0011] As a further improvement of the application: a left telescopic rod and a right telescopic rod capable of driving the work support to rise when moving towards each other and to lower when moving away from each other are vertically slidably installed between the front baffle and the rear baffle; 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 base plate; the work support includes a plurality of mounting grooves sequentially connected in a head-tail manner from left to right, and a second roller for supporting the pipeline is rotatably installed in each mounting groove; the leftmost mounting groove is rotatably connected with the left telescopic rod through a left connecting block, and the rightmost mounting groove is rotatably connected with the right telescopic rod through a right connecting block.

[0012] As a further improvement of the application: 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 a frame, the top plate of the frame is located above the support plate, and a vertical column passing hole is formed in the support plate for the two vertical columns of the frame to pass through; a lead screw nut 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 on the bottom of the support plate, a vertical third motor is fixedly installed on the bottom of the support plate, and an output shaft of the third motor is in transmission connection with the lead screw nut.

[0013] Preferably, the top of the top plate of the frame is fixedly provided with two mutually parallel nut seats from front to back, and a screw rod capable of rotating around the front-back direction and capable of moving in the front-back direction in the two nut seats when rotating is rotatably arranged in the two nut seats, a counterweight is sleeved on the end of the screw rod close to the driving wheel, and two limiting plates are vertically arranged on the top of the top plate of the frame and are located on the front and back of the nut respectively; and the bottom of the supporting plate is fixedly provided with a horizontal fourth motor, 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, long sliding blocks capable of sliding up and down are arranged on the left and right sides of the arc-shaped plate, and small frames for the up and down sliding of the two long sliding blocks are fixedly arranged on the top of the counterweight; at least two second return springs are vertically arranged between the top of the long sliding block and the bottom of the top plate of the small frame, and the polishing head is fixedly arranged on the top of the arc-shaped plate through the supporting block.

[0015] Preferably, third supporting roller supports are arranged on the top of the long sliding block, and holes for the passing of the third supporting roller supports are arranged on the top plate of the small frame, and two horizontal third supporting rollers arranged in a straight line from front to back are arranged in the third supporting roller supports.

[0016] As a further improvement of the present application: a plurality of auxiliary rotating wheels capable of facilitating the rotation of the pipeline are arranged on the side of the front baffle and the rear baffle in contact with the pipeline.

[0017] The present application has the following advantages: the pipeline automatic polishing device for ocean engineering provided by the present application has good adaptability.

[0018] Firstly, the initial support provides a temporary support point for the subsequent accurate adjustment of the height of the pipeline, the cooperation of the rear baffle and the front baffle capable of sliding forward and backward can reduce the probability of movement of the pipeline in the front-back direction during processing, the working support capable of synchronous lifting for supporting the pipeline when the pipeline rotates supports different sluggish pipelines, and at the same time, the cooperation of the working support with the driving wheel and the limiting wheel can also support pipelines with different wall thicknesses, and finally, the polishing head capable of lifting and moving forward and backward for polishing the inner wall of the pipeline when the pipeline rotates, realizes the polishing of the inner wall of the pipeline, greatly improves the adaptability to pipelines of different sizes, and makes the adaptability of the device good. BRIEF DESCRIPTION OF DRAWINGS

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

[0020] Figure 2 It is another angle of the overall structure of the present application.

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

[0022] Figure 4 is an assembly view of the substrate, support plate, etc. in the present application.

[0023] Figure 5 is a perspective view of the overall structure of the backstop in the present application.

[0024] Figure 6 is a schematic view of the overall structure of the crossbar in the present application.

[0025] Figure 7 is a schematic view of the positional relationship of the work support, initial support, etc. in the present application.

[0026] Figure 8 is a schematic view of the overall structure of the work support in the present application.

[0027] Figure 9 is a schematic view of the overall structure of the left connecting block in the present application.

[0028] Figure 10 is an assembly view of the backstop, crossbar, etc. in the present application.

[0029] Figure 11 is an assembly view of the drive wheel, first motor, backstop, crossbar, etc. in the present application.

[0030] Figure 12 is a schematic view of the overall structure of the polishing head, etc. in the present application.

[0031] Figure 13 is a schematic view of the overall structure of the polishing head, counterweight, etc. in the present application.

[0032] Figure 14 is a partial sectional view of the front stop, support plate, first screw, etc. in the present application.

[0033] Figure 15 is a partial sectional view of the support plate, first screw, third motor, etc. in the present application.

[0034] Figure 16 is a schematic view of the overall structure of the screw, fourth motor, etc. in the present application.

[0035] Figure 17 is a schematic view of the overall structure of the screw, fourth motor, counterweight, etc. in the present application.

[0036] Figure 18 is a schematic view of part of the structure of the present application.

[0037] The names of the components corresponding to the respective reference numerals in the above-described drawings are as follows: 101, substrate; 102, front stop; 103, backstop; 1031, semispherical protrusion; 1032, universal ball bearing; 104, auxiliary turning wheel.

[0038] 2, initial support; 201, first cylinder; 202, first supporting wheel support; 203, first supporting wheel; 204, first return spring.

[0039] 301, driving wheel; 302, limiting wheel; 303, first motor; 304, first gear; 305, second gear.

[0040] 4, working support; 401, second supporting wheel; 402, mounting groove; 403L, left connecting block; 403R, right connecting block.

[0041] 501, polishing head; 502, arc-shaped plate; 503, long sliding block; 504, small frame; 505, second return spring; 506, supporting block; 507, third supporting wheel.

[0042] 601, cross rod; 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 part; 703, second telescopic part.

[0044] 801, supporting plate; 802, first lead screw; 803, frame; 8031, limiting plate; 804, lead screw nut; 805, third motor; 806, first belt pulley; 807, first belt.

[0045] 901, nut seat; 902, screw rod; 903, counterweight; 904, fourth motor; 905, second belt pulley; 906, third belt pulley; 907, second belt; 908, fourth belt pulley; 909, fifth belt pulley; 9010, third belt; 9011, sixth belt pulley; 9012, seventh belt pulley; 9013, fourth belt; 9014, eighth belt pulley; 9015, nut; 9016, fifth belt; 9017, first connecting rod; 9018, second connecting rod. DETAILED DESCRIPTION

[0046] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0047] The orientation words such as "up", "down", "left", "right", "front", "back", "top" and "bottom" in the present application are all based on the direction defined by the cross-shaped orientation mark as the reference. Figure 3 The orientation words in the present application are all described based on the definition, and do not change the represented orientation with the angle change of the drawing.

[0048] The definition of the related terms involved in the present application: (1) Marine engineering: refers to the new, reconstruction, expansion engineering whose main body is located on the sea side of the coastline for the purpose of developing, utilizing, protecting and restoring marine resources. Generally, the main content of marine engineering can be divided into two parts: resource development technology and equipment and facility technology, which specifically includes: reclamation, offshore dam engineering, artificial island, offshore and submarine material storage facilities, cross-sea bridge, submarine tunnel engineering, submarine pipeline, submarine electric (optical) cable engineering, marine mineral resource exploration and development and its auxiliary engineering, offshore tidal power station, wave power station, temperature difference power station and other marine energy development and utilization engineering, large-scale mariculture, artificial reef engineering, salt field, seawater desalination and other seawater comprehensive utilization engineering, offshore entertainment and sports, landscape development engineering, and other marine engineering stipulated by the competent department of the state and the environmental protection department.

[0049] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 18 The marine pipeline automatic polishing device provided by the present application comprises a base plate 101 and at least two groups of initial supporting pieces 2 for placing the pipeline which are arranged in parallel from front to back on the top of the base plate 101; the initial supporting piece 2 comprises a left roller piece and a right roller piece which are symmetrically arranged on the left and right sides of the top of the base plate 101, and the left roller piece and the right roller piece each comprise a first cylinder 201 which is vertically fixedly installed on the top of the base plate 101 and has a single-sided opening and an opening upward, a first roller bracket 202 is slidably sleeved outside the first cylinder 201, a containing groove for containing the first cylinder 201 is formed in the bottom of the first roller bracket 202, a first roller 203 which can rotate around the front-back direction is rotatably installed on the top of the first roller bracket 202, the wheel shaft of the first roller 203 is parallel to the horizontal plane, and a first return spring 204 is vertically fixedly installed between the top of the bottom surface of the first cylinder 201 and the groove bottom of the containing groove.

[0050] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 10 , Figure 11 , Figure 18As shown, the front side of the base plate 101 is fixedly provided with a front baffle 102, the front baffle 102 is rotatably provided with a driving wheel 301 capable of rotating around the front-back direction for driving the pipeline to rotate by contacting the inner wall of the pipeline, the rear side of the base plate 101 is provided with a rear baffle 103 capable of sliding on the base plate 101, the rear baffle 103 is provided with a limiting wheel 302 for limiting the position of the pipeline in the pipeline; 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 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 the wheel shaft of the driving wheel 301 is fixedly sleeved with a second gear 305 engaged with the first gear 304 at one end close to the first gear 304. The top of the base plate 101 is provided with a horizontal cross rod 601 capable of driving the rear baffle 103 to slide forward or backward on the top of the base plate 101 when rotating around the front-back direction, and the front side of the front baffle 102 is provided with a horizontal second motor 602, the output shaft of the second motor 602 is in transmission connection with the cross rod 601 through a second transmission member. The top of the base plate 101 is vertically provided with two mutually parallel cross rod supports for rotatably mounting the cross rod 601. The top of the base plate 101 is provided with two mutually parallel rear baffle sliding grooves, the cross section of the rear baffle sliding groove is in convex structure, and the bottom surface of the rear baffle 103 for contacting the top of the base plate 101 is provided with two sliding blocks capable of sliding in the two rear baffle sliding grooves respectively; the bottom surface of the rear baffle 103 for contacting the ground is rotatably provided with a plurality of universal ball bearings 1032. The cross rod 601 is provided with an arc-shaped spiral groove, the rear baffle 103 is provided with a rod passing hole for the cross rod 601 to pass through, and the inner wall of the rod passing hole is fixedly provided with two hemispherical protrusions 1031 matched with the arc-shaped spiral groove. 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 beside the second motor 602, a fourth gear 605 engaged 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 engaged 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 rod 601 close to the second transmission rod 607, and an eighth gear 6010 engaged 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 rotating wheels 104 capable of facilitating the rotation of the pipeline are installed on the side of the front baffle 102 and the rear baffle 103 for contacting the pipeline, and the wheel shaft of the auxiliary rotating wheel 104 is perpendicular to the front-back direction and parallel to the left-right direction.The plurality of auxiliary rotating wheels 104 on the front baffle 102 are arranged in a radial shape along the edge of the driving wheel 301, and the plurality of auxiliary rotating wheels 104 on the rear baffle 103 are arranged in a radial shape along the edge of the limiting wheel 302, and the plurality of auxiliary rotating wheels 104 are all located below the driving wheel 301 or the limiting wheel 302.

[0051] As Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 , Figure 9 , Figure 18As shown, the driving wheel 301 and the lower part of the limiting wheel 302 are provided with operation support members 4 capable of synchronous lifting for supporting the pipeline when the pipeline rotates; the front baffle 102 and the rear baffle 103 are vertically slidably installed with left and right telescopic rods 701L and 701R capable of driving the operation support members 4 to rise when moving towards each other and to lower when moving away from each other, the front baffle 102 and the rear baffle 103 are provided with telescopic rod sliding grooves for the left and right telescopic rods 701L and 701R to slide left and right, the left telescopic rod 701L is located at the left side of the base plate 101, and the right telescopic rod 701R is located at the right side of the base plate 101, the left and right telescopic rods 701L and 701R each include a one-side-opened cylindrical outer pipe and an inner pipe capable of reciprocating in the cavity of the outer pipe along the length direction of the outer pipe; the top of the base plate 101 is installed with a horizontal first telescopic member 702 for driving the left and right movement of the left telescopic rod 701L and a horizontal second telescopic member 703 for driving the left and right movement of the right telescopic rod 701R; the operation support members 4 include a plurality of mounting grooves 402 sequentially connected in tail-to-head manner from left to right, and each of the mounting grooves 402 is rotatably installed with a second supporting roller 401 for supporting the pipeline; the leftmost mounting groove 402 is rotatably connected with the left telescopic rod 701L through a left connecting block 403L, and the rightmost mounting groove 402 is rotatably connected with the right telescopic rod 701R through a right connecting block 403R. The tail part of the mounting groove 402 is provided with a pair of parallel small straight plates, and the head part is provided with a shaft sleeve capable of extending into the pair of small straight plates, the boss of one mounting groove 402 is rotatably connected with the pair of small straight plates of the mounting groove 402 adjacent to the one mounting groove 402 through a first small rotating shaft, and particularly, the leftmost mounting groove 402 is only provided with a pair of small straight plates at the tail part, and the rightmost mounting groove 402 is only provided with a shaft sleeve at the head part. Through such design, the curvature of the operation support members 4 can be changed to follow the change of the pipeline size, and different sizes of pipelines can be wrapped and adapted. The bottom of the leftmost mounting groove 402 and the rightmost mounting groove 402 are each vertically installed with two small supporting plates, the left and right connecting blocks 403L and 403R each include a straight block, a sleeve capable of rotatably sleeving on the left or right telescopic rod 701L or 701R is fixedly installed on one end of the straight block close to the left or right telescopic rod 701L or 701R, and a second small rotating shaft capable of rotatably installed between the two small supporting plates is fixedly installed on one end of the straight block close to the operation support members 4.

[0052] As Figure 1 , Figure 2 , Figure 3 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18As shown, the upper part of the front baffle 102 is provided with a polishing head 501 capable of lifting and moving forward and backward for extending into the pipeline to polish the inner wall of the pipeline when the pipeline rotates, the polishing head 501 is in a semi-cylindrical structure, and the curved surface is used for contacting and polishing the inner wall of the pipeline; the front side of the front baffle 102 is vertically and fixedly provided with a horizontal support plate 801, a protection box is fixedly installed between the support plate 801 and the front baffle 102, a box door is arranged on the box, a vertical first lead screw 802 is rotatably installed on the top and bottom plates of a frame 803, the top plate of the frame 803 is located above the support plate 801, the support plate 801 is provided with a column passing hole for two columns of the frame 803 to pass through, a lead screw nut 804 matched with the first lead screw 802 and capable of moving up and down with the first lead screw 802 when the first lead screw 802 rotates is arranged on the first lead screw 802, the lead screw nut 804 is rotatably installed on the bottom of the support plate 801, a vertical third motor 805 is fixedly installed on the bottom of the support plate 801, and the output shaft of the third motor 805 is in transmission connection with the lead screw nut 804 through a third transmission member. The third transmission member includes a first belt pulley 806 fixedly sleeved on the output shaft of the third motor 805, the first belt pulley 806 is in transmission connection with the lead screw nut 804 through a first belt 807, and a wheel groove for accommodating the first belt 807 is arranged outside the lead screw nut 804. The top of the top plate of the frame 803 is fixedly provided with two nut seats 901 parallel to each other from front to back, a screw rod 902 capable of rotating around the front and back directions and moving forward and backward in the two nut seats 901 when rotating is rotatably installed in the two nut seats 901, a counterweight 903 is sleeved outside the end of the screw rod 902 close to the driving wheel 301, a nut 9015 is rotatably sleeved outside the screw rod 902, and two limiting plates 8031 are vertically installed on the top of the top plate of the frame 803 and located on the front and back sides of the nut 9015, respectively.The bottom of the support plate 801 is fixedly provided with a horizontal fourth motor 904, and the output shaft of the fourth motor 904 is in transmission connection with the screw rod 902 through a fourth transmission member; the fourth transmission member comprises a second belt pulley 905 fixedly sleeved on the output shaft of the fourth motor 904, and the top of the support plate 801 is rotationally provided with a horizontal first wheel shaft through a first wheel shaft mounting frame, one end of the first wheel shaft close to the second belt pulley 905 is fixedly provided with a third belt pulley 906, the second belt pulley 905 and the third belt pulley 906 are in transmission connection through a second belt 907, a second belt passing hole is formed in the support plate 801 and used for the second belt 907 to pass through, one end of the first wheel shaft away from the second belt pulley 905 is fixedly provided with a fourth belt pulley 908, a horizontal second wheel shaft is arranged above the first wheel shaft, one end of the second wheel shaft close to the fourth belt pulley 908 is fixedly provided with a fifth belt pulley 909, the fifth belt pulley 909 and the fourth belt pulley 908 are in transmission connection through a third belt 9010, one end of the second wheel shaft away from the fourth belt pulley 908 is fixedly provided with a sixth belt pulley 9011, one side of the top plate of the frame 803 close to the second wheel shaft is rotationally provided with a horizontal third wheel shaft, the third wheel shaft is below the second wheel shaft, the first wheel shaft, the second wheel shaft and the third wheel shaft are parallel to each other, one end of the third wheel shaft close to the sixth belt pulley 9011 is fixedly provided with a seventh belt pulley 9012, the sixth belt pulley 9011 and the seventh belt pulley 9012 are in transmission connection through a fourth belt 9013, one end of the third wheel shaft away from the sixth belt pulley 9011 is fixedly provided with an eighth belt pulley 9014, the eighth belt pulley 9014 and a nut 9015 are in transmission connection through a fifth belt 9016, and the nut 9015 is externally provided with a belt accommodating groove used for accommodating the fifth belt 9016; one end of the first wheel shaft close to the second belt pulley 905 and one end of the second wheel shaft away from the fourth belt pulley 908 are in rotation connection through a first connecting rod 9017, and one end of the second wheel shaft away from the fourth belt pulley 908 and one end of the third wheel shaft away from the sixth belt pulley 9011 are in transmission connection through a second connecting rod 9018. The top of the counterweight 903 is provided with an arc-shaped plate 502, the left side and the right side of the arc-shaped plate 502 are both provided with a long sliding block 503 capable of sliding up and down, and the top of the counterweight 903 is fixedly provided with a small frame 504 for the two long sliding blocks 503 to slide up and down respectively; at least two second return springs 505 are vertically arranged between the top of the long sliding block 503 and the bottom of the top plate of the small frame 504, and the polishing head 501 is fixedly arranged on the top of the arc-shaped plate 502 through a support block 506. The top of the long sliding block 503 is provided with a third supporting roller support, the top plate of the small frame 504 is provided with a hole through which the third supporting roller support passes, and the third supporting roller support is provided with two horizontal third supporting rollers 507 arranged in a straight line from front to back, and the wheel shaft of the third supporting roller 507 is perpendicular to the left-right direction.

[0053] The working principle of the present application is as follows: the pipeline is placed on two initial supports 2, the bottom of the pipeline is in contact with the top of the four first supporting wheels 203, 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, and after the height adjustment of the initial support 2 is completed, the second motor 602 is started, 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, the eighth gear 6010 drives the horizontal rod 601 to rotate around the front and back directions between the two horizontal rod supports through the seventh gear 609, the tangent direction component force of the arc-shaped spiral groove pushes the semispherical protrusion 1031 in the arc-shaped spiral groove, so that the semispherical protrusion 1031 drives the rear baffle 103 to move forward, the two sliding blocks slide forward in the two rear baffle sliding grooves respectively, the movement of the rear baffle 103 is guided through the two sliding blocks and the two rear baffle sliding grooves, the rotation of the rear baffle 103 in the circumferential direction can be limited, the universal ball 1032 is in contact with the ground and rotates, so that the resistance during the movement of the rear baffle 103 is reduced, until the front side of the pipeline is close to the front baffle 102 and the rear side of the pipeline is close to the rear baffle 103.

[0055] Initially, the working support 4 is at the lowest point of its stroke, and after the rear baffle 103 is adjusted to the appropriate position, the first telescopic member 702 and the second telescopic member 703 are started, 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 towards 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 one end of the left telescopic rod 701L or the right telescopic rod 701R, driving the installation grooves 402 to rise, after the pipeline is in contact with the driving wheel 301 on the inner wall of the bottom, the middle installation groove 402 will not continue to rise, and the left and right installation grooves 402 continue to rise, the relative rotation between the installation grooves 402 around the first small rotating shaft occurs, the first small rotating shaft is perpendicular to the left and right directions, until the installation grooves 402 all contact the outer surface of the pipeline, and the installation grooves 402 are in the shape of a circular arc that is attached to the outer surface of the pipeline, at this time, the height adjustment of the working support 4 is completed, and the telescopic ends of the first telescopic member 702 and the second telescopic member 703 stop at this length. When the pipeline is supported by the working support 4, the bottom of the pipeline is away from the top of the initial support 2, the first return spring 204 gradually returns to the natural elongation state, driving the first supporting wheel bracket 202 to slide upward on the first cylinder 201, and returning to the initial position.

[0056] At this time, the bottom of the inner wall of the front side of the pipeline is in contact with the bottom of the driving wheel 301, and the bottom of the inner wall of 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, and after the pipeline is fixed, the third motor 805 is started. The output shaft of the third motor 805 drives the first belt pulley 806 to rotate, and the first belt pulley 806 drives the lead screw nut 804 to rotate through the first belt 807. With the rotation of the lead screw nut 804, the first lead screw 802 constantly rises, driving the frame 803 to rise, thereby driving the counterweight 903 to rise through the frame 803, and finally driving the polishing head 501 to rise. After reaching the expected position, it stays at this position. The top plate and the bottom plate of the frame 803 can limit the stroke, and the column and the column through hole can guide. When the top of the polishing head 501 is in contact with the inner wall of the top of the pipeline, the polishing head 501 will be pressed downward, thereby moving the arc-shaped plate 502 downward, and the two long sliding blocks 503 are driven by the arc-shaped plate 502 to slide downward in the small frame 504. The second return spring 505 gradually elongates, but the second return spring 505 always wants to return to the initial natural elongation state, so it will exert an upward force on the long sliding block 503. Under the action of the second return spring 505, the top of the polishing head 501 can always be in close contact with the inner wall of the top of the pipeline. Even if the inner wall of the pipeline is uneven, the polishing head 501 will not idle and will not polish, ensuring more uniform polishing of the inner wall. The third supporting wheel 507 can be close to the inner wall of the pipeline, and can assist the rotation of the pipeline.

[0057] At the beginning, the polishing head 501 is located at the front end of its stroke, when the inner wall of the pipe needs to be polished, 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 wheel shaft of the driving wheel 301 through the second gear 305, so that the driving wheel 301 rotates around the front-back direction, and drives the pipe to rotate around the front-back direction on the working support 4. When the pipe rotates, the front end and the rear end of the pipe are in contact with the plurality of auxiliary rotating wheels 104 on the front baffle 102 and the rear baffle 103 respectively, the auxiliary rotating wheels 104 can reduce the friction between the pipe and the front baffle 102 and the rear baffle 103, facilitating the rotation of the pipe. Subsequently, the fourth motor 904 is started, the fourth motor 904 drives the second belt pulley 905 to rotate, the second belt pulley 905 drives the third belt pulley 906 to rotate through the second belt 907, the third belt pulley 906 drives the first wheel shaft to rotate and thus drives the fourth belt pulley 908 to rotate, the fourth belt pulley 908 drives the fifth belt pulley 909 to rotate through the third belt 9010, the fifth belt pulley 909 drives the second wheel shaft to rotate and thus drives the sixth belt pulley 9011 to rotate, the sixth belt pulley 9011 drives the seventh belt pulley 9012 to rotate through the fourth belt 9013, the seventh belt pulley 9012 drives the third wheel shaft to rotate and thus drives the eighth belt pulley 9014 to rotate, the eighth belt 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, and it drives the screw rod 902 to rotate in the nut 9015, the two nut seats 901 and the counterweight block 903, the counterweight block 903 has a certain weight, the screw rod 902 can only rotate in the counterweight block 903 and cannot drive the counterweight block 903 to rotate, the polishing head 501 is always located at the top of the counterweight block 903, and the polishing head 501 gradually moves backward with the counterweight block 903, and the inner wall of the pipe is polished from front to back. When the polishing head 501 needs to move forward, the output shaft of the fourth motor 904 is controlled to rotate in the opposite direction.

[0058] After polishing, the second motor 602 is started, the output shaft of the second motor 602 is rotated in the opposite direction to the initial adjustment, so that the rear baffle 103 moves backward and gradually retreats to the initial position. The third motor 805 is started to reverse and drive the frame 803 to descend, when the working support 4 needs to be lowered to the height, the extension ends of the first telescopic part 702 and the second telescopic part 703 are controlled to be elongated. Then the rear baffle 103 moves backward to restore the device to the initial state.

Claims

1. An automatic pipe grinding device for offshore engineering, characterized in that, It comprises a base plate (101) and at least two groups of initial supports (2) for placing pipes which are arranged in parallel from front to back on the top of the base plate (101) and can be lifted up and down. A front baffle (102) is fixedly installed on the front side of the base plate (101), and 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 on the base plate (101) is arranged on the rear side of the base plate (101), and a limiting wheel (302) which is used for limiting the position of the pipe in the pipe is arranged on the rear baffle (103). Driving wheels (301) and limiting wheels (302) are arranged below the driving wheels (301) and the limiting wheels (302) respectively, and working supports (4) which can be lifted up and down and are used for supporting the pipe when the pipe rotates are arranged below the driving wheels (301) and the limiting wheels (302). A polishing head (501) which can be lifted up and down and can move forward and backward and is used for polishing the inner wall of the pipe when the pipe rotates is arranged above the front baffle (102). The initial supports (2) comprise left and right supporting wheel members which are symmetrically arranged on the left and right sides of the top of the base plate (101), and each of the left and right supporting wheel members comprises a first cylinder (201) which is vertically fixedly installed on the top of the base plate (101) and has a single-sided opening and an opening facing upward, a first supporting wheel bracket (202) which is slidably sleeved outside the first cylinder (201), a first supporting wheel (203) which is rotatably installed on the top of the first supporting wheel bracket (202) and can rotate around the front-back direction, and a first return spring (204) which is vertically fixedly installed between the top of the bottom surface of the first cylinder (201) and the groove bottom of the accommodating groove. Left and right telescopic rods (701L and 701R) which can drive the working supports (4) to rise when moving towards each other and to descend when moving away from each other are vertically slidably installed between the front baffle (102) and the rear baffle (103). A first telescopic member (702) which is used for driving the left telescopic rod (701L) to move leftward and rightward and is horizontally installed on the top of the base plate (101) and a second telescopic member (703) which is used for driving the right telescopic rod (701R) to move leftward and rightward and is horizontally installed on the top of the base plate (101) are installed on the top of the base plate (101). The working supports (4) comprise a plurality of mounting grooves (402) which are sequentially connected in a head-tail manner from left to right, and a second supporting wheel (401) which is used for supporting the pipe is rotatably installed in each of the mounting grooves (402); the leftmost mounting groove (402) is rotatably connected with the left telescopic rod (701L) through a left connecting block (403L), and the rightmost mounting groove (402) is rotatably connected with the right telescopic rod (701R) through a right connecting block (403R).

2. An automatic pipe polishing device for offshore engineering according to claim 1, characterized in that, A first motor (303) which is horizontally installed beside the front baffle (102) is drivingly connected with the axle of the driving wheel (301).

3. The automatic polishing device for a pipe for ocean engineering according to claim 1, characterized by The substrate (101) is provided with a horizontal cross rod (601) capable of driving the back baffle (103) to slide forward or backward on the top of the substrate (101) when rotating around the front-back direction, and the front side of the front baffle (102) is provided with a horizontal second motor (602), and the output shaft of the second motor (602) is in transmission connection with the cross rod (601).

4. The automatic polishing device for a pipeline for ocean engineering according to any one of claims 1 to 3, characterized in that, The front side of the front baffle (102) is vertically and fixedly provided with a horizontal support plate (801), the top of the support plate (801) is provided with a vertical first lead screw (802) penetratingly and rotatably installed, the first lead screw (802) is vertically rotatably installed between the top plate and the bottom plate of a frame (803), the top plate of the frame (803) is located above the support plate (801), and the support plate (801) is provided with a column passing hole for two columns of the frame (803) to pass through; The first lead screw (802) is provided with a lead screw nut (804) capable of moving up and down on the first lead screw (802) when rotating, the lead screw nut (804) is rotatably installed on the bottom of the support plate (801), the bottom of the support plate (801) is fixedly provided with a vertical third motor (805), and the output shaft of the third motor (805) is in transmission connection with the lead screw nut (804).

5. An automatic pipe polishing device for offshore engineering according to claim 4, characterized in that, The top of the top plate of the frame (803) is fixedly provided with two parallel nut seats (901) from front to back, the two nut seats (901) are jointly rotatably provided with a screw rod (902) capable of rotating around the front-back direction and moving forward and backward in the two nut seats (901) when rotating, the screw rod (902) is provided with a counterweight (903) on one end close to the driving wheel (301), the top of the top plate of the frame (803) is vertically provided with two limiting plates (8031), and the two limiting plates (8031) are located on the front and back of the nut (9015) respectively; The bottom of the support plate (801) is fixedly provided with a horizontal fourth motor (904), and the output shaft of the fourth motor (904) is in transmission connection with the screw rod (902).

6. An automatic pipe polishing device for offshore engineering according to claim 5, characterized in that, The top of the counterweight (903) is provided with an arc-shaped plate (502), the left and right sides of the arc-shaped plate (502) are both provided with a long sliding block (503) capable of sliding up and down, the top of the counterweight (903) is fixedly provided with a small frame (504) for the two long sliding blocks (503) to slide up and down respectively; at least two second return springs (505) are vertically installed between the top of the long sliding block (503) and the bottom of the top plate of the small frame (504), and the polishing head (501) is fixedly installed on the top of the arc-shaped plate (502) through a support block (506).

7. An automatic pipe polishing device for offshore engineering according to claim 6, characterized in that, The top of the long sliding block (503) is provided with a third supporting roller support, the top plate of the small frame (504) is provided with a hole for the third supporting roller support to pass through, and the third supporting roller support is provided with two horizontal third supporting rollers (507) arranged in a straight line from front to back.

8. The automatic polishing device for a pipeline for ocean engineering according to any one of claims 1 to 3, characterized in that, The front baffle (102) and the back baffle (103) are provided with a plurality of auxiliary rotating wheels (104) capable of facilitating the rotation of the pipeline on the side in contact with the pipeline.

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