CN107571969B - Stone polishing tower base and manufacturing and mounting process thereof - Google Patents
Stone polishing tower base and manufacturing and mounting process thereof Download PDFInfo
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- CN107571969B CN107571969B CN201710817941.8A CN201710817941A CN107571969B CN 107571969 B CN107571969 B CN 107571969B CN 201710817941 A CN201710817941 A CN 201710817941A CN 107571969 B CN107571969 B CN 107571969B
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- 239000004575 stone Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000005498 polishing Methods 0.000 title claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 98
- 238000003466 welding Methods 0.000 claims description 40
- 238000009434 installation Methods 0.000 claims description 32
- 229910001220 stainless steel Inorganic materials 0.000 claims description 25
- 239000010935 stainless steel Substances 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000011900 installation process Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 239000002360 explosive Substances 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 238000012797 qualification Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000004091 panning Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Abstract
The invention relates to the technical field of stone throwing ship manufacturing, in particular to a stone throwing tower base and a manufacturing and installing process thereof, which are characterized in that the base consists of a left side plate, a right side plate and a sliding main plate, wherein the left side surface of the sliding main plate is connected with the left side plate, the right side surface of the sliding main plate is connected with the right side plate, the upper parts of the left side plate and the right side plate are respectively bent at right angles to the inner side of the sliding main plate, sliding tracks are formed among the left side plate, the right side plate and the sliding main plate, a left support plate and a right support plate are respectively arranged below the left side plate and the right side plate, the upper end of the left support plate is welded with the lower part of the left side plate, the upper ends of the right support plate are welded with the lower part of the right side plate, left reinforcing ribs are arranged outside the left side plate and the left support plate, and the right reinforcing ribs are arranged outside the right side plate, and the lower part of the sliding main plate is provided with n-shaped lower reinforcing ribs.
Description
Technical Field
The invention relates to the technical field of stone throwing ship manufacturing, in particular to a stone throwing tower base with simple structure, stable installation, high installation precision and high installation efficiency and a manufacturing and installation process thereof.
Background
As is well known, a stone throwing ship is an important special ship required in the ocean development process, and is a ship for automatically throwing stones at the bottom of the water by means of transverse inclination or other methods after carrying the stones to a designated area, wherein the transverse positions of the gravity center and a floating center of the ship are changed by means of adjustment of the water quantity of a ballast water tank, so that the ship is transversely inclined, the stones on a deck are automatically removed, and then the ship is righted by self-draining of a valve of the ballast water tank. The water inlet and outlet valves of the ballast water tank are remotely controlled by a tug, and people are not easy to leave on the barge so as to avoid falling into water. The stone throwing ship is generally unable to self-navigate, the ship body is mostly square-barge-type, the stone throwing and filling engineering of ports, dams and the like is realized, stones on the stone throwing ship are thrown through stone throwing towers, the stone throwing towers are moved on stone throwing tower bases on the ship and slide, the stone throwing tower bases are generally independent two track bases, guide rail bases are distributed on the stern of the ship, the sliding operation of the stone throwing towers is assisted, particularly the specificity of the stone throwing ship structure is guaranteed, the weight is strictly controlled while the strength is guaranteed in the manufacturing process, the installation of the existing stone throwing tower bases is generally assembled on the ship, particularly the specificity of the stone throwing tower base structure is verified for many times in the assembling process, and the flatness of the stone throwing tower bases is guaranteed.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides the stone throwing tower base with simple structure, stable installation, high installation precision and high installation efficiency and the manufacturing and installation process thereof.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a stone throwing tower base, its characterized in that this base comprises left side board, right side board and the mainboard that slides, the left surface of the mainboard that slides be connected with left side board, the right side surface of the mainboard that slides be connected with right side board, the top of left side board and right side board be the right angle bending to the inboard of the mainboard that slides respectively, form the track that slides between left side board, right side board and the mainboard that slides, the below of left side board and right side board be equipped with left extension board and right extension board respectively, the upper end of left extension board welds with the below of left side board mutually, the upper end of right extension board welds with the below of right side board mutually, the outside of left side board and left extension board be equipped with left strengthening rib, the outside of right side board and right extension board be equipped with right strengthening rib, the outside of arranging left side board and right side board of left strengthening rib, the below of the mainboard that slides is n type lower strengthening rib is equipped with respectively with left side board and left extension board, right extension board and right extension board, the below of strengthening rib is connected with left extension board, the below and the track portion that slides, left side extension board and right extension board are equipped with the reinforcing rib correspond to the track portion.
The stainless steel wear-resistant plates are respectively arranged above the sliding main plate on the inner side of the sliding rail, and on the inner side surfaces of the left side plate and the right side plate, so that the wear resistance of the sliding rail is improved, and the service life is prolonged.
The left vertical plate and the right vertical plate are respectively arranged above the left side plate and the right side plate after being bent inwards, the lower end of the left vertical plate is connected with the left side plate, the outer side surface of the left vertical plate is connected with the left reinforcing rib, the lower end of the right vertical plate is connected with the right side plate, the outer side surface of the right vertical plate is connected with the right reinforcing rib, and the sliding fluency of the sliding rail is improved.
According to the invention, one lower reinforcing rib is arranged at each 3-5 lower reinforcing ribs in parallel arrangement, so that the stability of the whole structure is ensured.
The thicknesses of the left support plate and the right support plate are 3-6 mm smaller than those of the left side plate and the right side plate, so that the strength of the guide rail is ensured, and the overall weight of the ship body is ensured.
The left side plate and the right side plate of the side face of the stone throwing tower base are correspondingly provided with four pin shaft holes, and when the stone throwing tower moves to a working and parking position, the stone throwing tower is fixed through bolts in the pin shaft holes.
The manufacturing and installing process of the stone throwing tower base is characterized by comprising the following steps of:
manufacturing a guide rail:
(1) Firstly, taking a steel plate as a left side plate and a right side plate, performing right-angle press bending on the left side plate and the right side plate by adopting a gradual press method by using an oil press, and checking by adopting a sample plate in the press bending process, wherein the checking interval distance is not more than 500mm; then placing the pressed left side plate and right side plate on a workshop plate to be respectively butted with the left support plate and the right support plate by utilizing submerged arc automatic welding, then butting in the length direction, scribing the positions, on which the left reinforcing rib and the right reinforcing rib are required to be installed, of the outer sides of the left side plate and the right side plate from the stern to the bow after welding, checking whether the positions of the reinforcing plates meet the drawing requirements according to scribing after scribing, welding and positioning after checking qualification, and adding and placing welding compensation quantity according to 1 mm/grade to compensate welding shrinkage;
(2) After the marking is checked to be qualified, the left side plate and the left support plate which are welded are used as the tyres, the left reinforcing rib is welded at the marking position of the reinforcing rib in the step (1), and the back beam is added for fixation after the welding is finished, so that the shape of the back beam can be determined according to the position of the back beam, the main vertical plate is ensured not to deform during hoisting and transportation, and the right side plate and the right support plate are installed in the same way as the right reinforcing rib according to the steps;
(3) Turning over and fixing the product manufactured in the step (2) on a jig frame, installing stainless steel anti-wear plates (side surfaces and top surfaces), and assembling a clamp for ensuring the installation fit of the stainless steel anti-wear plates, wherein a sliding shoe slides on the stainless steel anti-wear plates and bears the pressure and the tensile force of the sliding shoe;
(4) Taking a sliding main board, placing the lower side surface of the sliding main board upwards on a field-shaped jig frame or a relatively flat ground, then installing lower reinforcing rib structures, installing a lower reinforcing rib structure in a square shape every 3-5 n-type lower reinforcing rib structures, enabling the positions of the lower reinforcing ribs to be consistent with the positions of the left reinforcing rib and the right reinforcing rib, and performing back welding leveling after finishing;
(5) Installing the product in the step (4) on the product in the step (3), manufacturing a square template before installing the product in the step (4) on the product in the step (3), wherein the size of the template is the same as that of a sliding shoe, placing a left side plate, a left support plate and a left reinforcing rib in the product in the step (3) on a mould, then clamping the template on the left side plate, the left support plate and the left reinforcing rib of the product in the step (3), placing a mould every 0.5 meter, controlling an assembly gap to be within 1mm, abutting the side face of a sliding main plate in the product in the step (4) on the template, then performing welding fixation of the product in the step (4), and re-measuring the flatness of the sliding main plate before welding to ensure that the accuracy requirement of 1/1000mm is met;
(6) Then, putting the right side plate, the right support plate and the right reinforcing rib in the product of the step (3) on a mould, turning over the product of the step (5) and buckling the product of the step (3) on the right side plate, the right support plate and the right reinforcing rib, and then welding;
(7) Step (6), turning over the product, measuring the distance between the guide rails, and if errors exist in the distance, putting a jack into the guide rails to further finely adjust the distance;
secondly, detecting the quality of the guide rail:
in order to ensure that the manufactured guide rail meets the quality requirement, the rails are required to be tested, two sets of test slide rails are required to be manufactured by hard miscellaneous tree according to the dimension data of the stone polishing tower and the dimension of 1:1, then the test slide rails are used for detecting the rails, if the space between the slide rails is in a problem, a jack is used for micro-panning until the detection is qualified, and then the rails are installed;
thirdly, mounting a base:
(1) After the ship body is assembled in sections, firstly performing initiating explosive leveling on the deck surface to ensure that the flatness is less than or equal to 4mm, then drawing a central line for track installation on the deck surface, and drawing central lines at two ends of the track at the same time, wherein the central lines are used as installation datum lines;
(2) Carrying out shipboard grinding and installing by taking one guide rail as a reference, drawing steel wires at the centering line position of the installation surface, fixing the two ends of the steel wires on the ship body, and then carrying out assembly and fixing of the guide rails;
(3) The primary positioning of the other guide rail is carried out by the same method, then the first steel wire is used as the top position (the lower plane of the stainless steel wear-resistant plate at the top) of the box, the other steel wire is pulled, the guide rail is adjusted and positioned according to the requirement, and the two steel wires are parallel and have equal horizontal spacing;
(4) Taking out a template in a guide rail groove, installing a stainless steel wear-resistant plate above a sliding main plate, then installing a left vertical plate and a right vertical plate at the upper ends of a left side plate and a right side plate, and after the installation is completed, preventing a jack from being reinforced and positioned in a slide rail, wherein the stainless steel can be assembled by using a separated jack, so that the fitting degree of the stainless steel is ensured, and the tolerance precision requirement of 0- +1mm is met;
(5) And after the positioning of the two guide rails is finished, the relative positions and the stability of the lower structure of the two guide rails are checked for the second time, and after the accuracy requirement is met, the welding process is performed through the welding process, so that the whole process is finished.
The distance between the left reinforcing rib, the right reinforcing rib and the lower reinforcing rib between 1/5~2/5 of the sliding rail bow is 1.5-2.5 times of the distance between the left reinforcing rib, the right reinforcing rib and the lower reinforcing rib at other parts, and the parts are stopping parts of the stone throwing tower, so that the strength of the stone throwing tower base is ensured and the weight is reduced.
The invention has the advantages of simple structure, stable installation, high installation precision, high installation efficiency and the like due to the adoption of the structure and the manufacturing and installation process.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of the foundation of the stone-throwing tower of the present invention.
Figure 3 is a cross-sectional view of a foundation of a stone throwing tower with a lower reinforcing rib in a return form according to the present invention.
Fig. 4 is a partial front view of fig. 1.
Fig. 5 is a diagram of a process of manufacturing a guide rail of a stone throwing tower foundation according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in the drawing, a stone throwing tower base is characterized in that the base consists of a left side plate 1, a right side plate 2 and a sliding main plate 3, wherein the left side surface of the sliding main plate 3 is connected with the left side plate 2, the right side surface of the sliding main plate 3 is connected with the right side plate 2, the upper parts of the left side plate 1 and the right side plate 2 are respectively bent at right angles to the inner side of the sliding main plate 3, sliding tracks 4 are formed among the left side plate 1, the right side plate 2 and the sliding main plate 3, a left support plate 5 and a right support plate 6 are respectively arranged below the left side plate 1 and the right side plate 2, the upper end of the left support plate 5 is welded with the lower part of the left side plate 1, the upper end of the right support plate 6 is welded with the lower part of the right side plate 2, the outer sides of the left side plate 1 and the left support plate 5 are provided with left reinforcing ribs 7, the outer sides of the right side plate 2 and the right support plate 6 are provided with right reinforcing ribs 8, the left reinforcing ribs 7 and the right reinforcing ribs 8 are arranged on the outer sides of the left side plate 1 and the right side plate 2 in parallel, the lower part of the sliding main board 3 is provided with n-type lower reinforcing ribs 9, the left side and the right side of the lower reinforcing ribs 9 and the upper part are respectively connected with the left side board 1, the left support board 5, the right side board 2, the right support board 6 and the sliding main board 3, the lower reinforcing ribs 9 are correspondingly arranged with the left reinforcing ribs 7 and the right reinforcing ribs 8, the track bow part is provided with a manhole cover, the track stern part is provided with a sealing board 10, the upper part of the sliding main board 3 on the inner side of the sliding track, the inner side surfaces of the left side board 1 and the right side board 2 are respectively provided with a stainless steel wear-resistant board 11, the wear resistance of the sliding track is increased, the service life is prolonged, the upper parts of the left side board 1 and the right side board 2 which are bent inwards are respectively provided with a left vertical board 12 and a right vertical board 13, the lower end of the left vertical board 12 is connected with the left side board 1, the outer side surface of the left vertical board 12 is connected with the left reinforcing ribs 7, the lower end of the right vertical plate 13 is connected with the right side plate 2, the outer side surface of the right vertical plate 13 is connected with the right reinforcing rib 8, the sliding smoothness of a sliding rail is increased, the distance between the left reinforcing rib 7, the right reinforcing rib 8 and the lower reinforcing rib 9 of the 1/5~2/5 of the bow part of the sliding rail 4 is 1.5-2.5 times of the distance between the left reinforcing rib 7, the right reinforcing rib 8 and the lower reinforcing rib 9 of other parts, and as the parts are the stopping parts of the stone throwing tower, the weight of the stone throwing tower can be reduced while the strength of the stone throwing tower base is ensured, a lower reinforcing rib 9 is arranged at each 3-5 lower reinforcing ribs in parallel, the stability of the whole structure is ensured, the thickness of the left support plate 5 and the right support plate 6 is 3-6 mm smaller than that of the thickness of the left side plate 1 and the right side plate 2, the whole weight of the ship body is ensured while the strength of the guide rail is ensured, four pin shafts 14 are correspondingly arranged on the left side plate and the right side plate of the side surface of the stone throwing tower base, and the stone throwing tower base are fixedly arranged at the following steps, and the stone throwing tower is fixedly arranged in the tower through the following process: manufacturing a guide rail: (1) Firstly, taking steel plates as a left side plate 1 and a right side plate 2, using an oil press to press the left side plate 1 and the right side plate 2 into right angles by adopting a gradual pressing method, and adopting a template for inspection in the process of press bending, wherein the inspection interval distance is not more than 500mm; then placing the pressed left side plate 1 and right side plate 2 on a workshop plate to be respectively butted with the left support plate 5 and right support plate 6 by utilizing submerged arc automatic welding, then butting in the length direction, scribing the positions, from the stern to the stem, of the left side plate 1 and the right side plate 2, of which the left reinforcing rib 7 and the right reinforcing rib 8 are required to be installed on the outer sides of the left side plate 1 and the right side plate 2 after welding is finished, checking whether the positions of the reinforcing plates meet drawing requirements according to scribing after scribing is finished, welding and positioning after checking to be qualified, and adding welding compensation quantity according to 1 mm/grade to compensate welding shrinkage; (2) After the marking is checked to be qualified, the left side plate 1 and the left support plate 5 which are welded are used as the tyres, the left reinforcing rib 7 is welded at the marking position of the reinforcing rib in the step (1), and the back beam is added for fixation after the welding is finished, so that the shape of the back beam can be determined according to the position of the back beam, the main vertical plate is ensured not to deform during hoisting and transportation, and the right side plate 2 and the right support plate 6 are installed according to the same steps as the right reinforcing rib 8; (3) Turning over and fixing the product manufactured in the step (2) on a jig frame, installing a stainless steel anti-wear plate 11 (side surface and top surface), and assembling by using a clamp to ensure the installation fit of the stainless steel anti-wear plate 11, wherein a sliding shoe slides on the stainless steel anti-wear plate 11 and bears the pressure and the tensile force of the sliding shoe; (4) Taking a sliding main board, placing the lower side surface of the sliding main board 3 upwards on a field-shaped jig frame or a relatively flat ground, then installing a lower reinforcing rib structure, installing a lower reinforcing rib 9 structure in a rectangular shape by 3-5 n-type lower reinforcing rib 9 structures at intervals, aligning the positions of the lower reinforcing ribs 9 with the positions of the left reinforcing rib 7 and the right reinforcing rib 8, and performing back welding leveling after finishing; (5) Installing the product in the step (4) on the product in the step (3), manufacturing a square template before installing the product in the step (4) on the product in the step (3), wherein the size of the template is the same as that of a sliding shoe, placing a left side plate 1, a left support plate 5 and a left reinforcing rib 7 in the product in the step (3) on a mould, then clamping the template on the left side plate 1, the left support plate 5 and the left reinforcing rib 7 of the product in the step (3), placing a mould at intervals of 0.5 m, controlling the assembly gap to be within 1mm, abutting the side face of a sliding main plate 3 in the product in the step (4) on the template, then performing welding fixation of the product in the step (4), and measuring the flatness of the sliding main plate again before welding to ensure that the accuracy requirement of 1/1000mm is met; (6) Then taking the right side plate 2, the right support plate 6 and the right reinforcing rib 8 in the product of the step (3), putting the product of the step (5) on a mould, turning over and buckling the product of the step (3) on the right side plate 2, the right support plate 6 and the right reinforcing rib 8, and then welding; (7) Step (6), turning over the product, measuring the distance between the guide rails, and if errors exist in the distance, putting a jack into the guide rails to further finely adjust the distance; secondly, detecting the quality of the guide rail: in order to ensure that the manufactured guide rail meets the quality requirement, the rails are required to be tested, two sets of test slide rails are required to be manufactured by hard miscellaneous tree according to the dimension data of the stone polishing tower and the dimension of 1:1, then the test slide rails are used for detecting the rails, if the space between the slide rails is in a problem, a jack is used for micro-panning until the detection is qualified, and then the rails are installed; thirdly, mounting a base: (1) After the ship body is assembled in sections, firstly performing initiating explosive leveling on the deck surface to ensure that the flatness is less than or equal to 4mm, then drawing a central line for track installation on the deck surface, and drawing central lines at two ends of the track at the same time, wherein the central lines are used as installation datum lines; (2) Carrying out shipboard grinding and installing by taking one guide rail as a reference, drawing steel wires at the centering line position of the installation surface, fixing the two ends of the steel wires on the ship body, and then carrying out assembly and fixing of the guide rails; (3) The primary positioning of the other guide rail is carried out by the same method, then the first steel wire is used as the top position (the lower plane of the stainless steel wear-resistant plate at the top) of the box, the other steel wire is pulled, the guide rail is adjusted and positioned according to the requirement, and the two steel wires are parallel and have equal horizontal spacing; (4) Taking out a template in a guide rail groove, installing a stainless steel anti-abrasion plate 11 above a sliding main plate, then installing a left vertical plate 12 and a right vertical plate 13 at the upper ends of a left side plate 1 and a right side plate 2, and after the installation is completed, preventing a jack from being subjected to reinforced positioning in a slide rail, wherein the stainless steel can be assembled by using a separated jack, so that the fitting degree of the stainless steel is ensured, and the tolerance precision requirement of 0- +1mm is met; (5) And after the positioning of the two guide rails is finished, the relative positions and the stability of the lower structure of the two guide rails are checked for the second time, and after the accuracy requirement is met, the welding process is performed through the welding process, so that the whole process is finished.
The invention has the following advantages:
1. the complex construction procedures are reduced, such as working conditions without overhead welding; butt welding is completed in the imposition stage.
2. The construction period is shortened, the working procedure is advanced, the former manufacturing needs to be assembled after the ship body is folded, the ship body can be manufactured in a workshop, the manufacturing environment is better, the manufacturing period is shorter, and the manufacturing time is 2 months earlier than the former manufacturing time.
3. The installation precision can be effectively controlled, the former manufacturing precision is ensured in the final manufacturing link, and if the precision does not meet the requirement, the processing is required on the ship. At present, each link is controlled step by step, the precision is ensured, and the final machining link is avoided.
The stone throwing tower base is directly arranged on the deck instead of later-stage installation in the process of manufacturing the ship body, so that the construction period of installation is shortened, the installation precision is accurate, the welding sequence is more reasonable and convenient, the working condition of overhead welding does not exist, the bottom stainless steel is welded on the ship, the error of the base in manufacturing can be compensated, the precision control is easier, and the stone throwing tower base has the advantages of simple structure, stable installation, high installation precision, high installation efficiency and the like due to the adoption of the structure and the manufacturing and installation process.
Claims (2)
1. A stone throwing tower base is characterized in that the base consists of a left side plate, a right side plate and a sliding main plate, the left side surface of the sliding main plate is connected with the left side plate, the right side surface of the sliding main plate is connected with the right side plate, the upper parts of the left side plate and the right side plate are respectively bent at right angles to the inner sides of the sliding main plate, sliding tracks are formed among the left side plate, the right side plate and the sliding main plate, a left support plate and a right support plate are respectively arranged below the left side plate and the right side plate, the upper end of the left support plate is welded with the lower part of the left side plate, the upper end of the right support plate is welded with the lower part of the right side plate, the outer sides of the left side plate, the right side plate and the right support plate are provided with left reinforcing ribs, the left side plate and the outer sides of the right side plate are arranged in parallel, the lower reinforcing ribs are arranged below the sliding main plate in an n shape, the left side, the right side and the upper side of the lower reinforcing rib are respectively connected with a left side plate, a left support plate, a right side plate, a right support plate and a sliding main plate, the lower reinforcing rib is correspondingly arranged with the left reinforcing rib and the right reinforcing rib, a manhole cover is arranged at the bow part of the sliding track, a sealing plate is arranged at the stern part of the sliding track, stainless steel wear-resistant plates are respectively arranged above the sliding main plate inside the sliding track, above the left side plate and the inner side surface of the right side plate, a left vertical plate and a right vertical plate are respectively arranged above the left side plate and the right side plate which are bent inwards, the lower end of the left vertical plate is connected with the left side plate, the outer side surface of the left vertical plate is connected with the left reinforcing rib, the lower reinforcing rib is arranged in parallel, a lower reinforcing rib is arranged at each interval of 3-5 lower reinforcing ribs, the thickness of left extension board and right extension board be less than left side board and right side board thickness 3mm ~6mm, guarantee the whole weight of hull when guaranteeing base intensity, left side board and right side board of stone throwing tower base side on correspond and be equipped with four pin shaft holes, preparation and installation process steps are as follows:
base manufacturing:
(1) Firstly, taking a steel plate as a left side plate and a right side plate, performing right-angle press bending on the left side plate and the right side plate by adopting a gradual press method by using an oil press, and checking by adopting a sample plate in the press bending process, wherein the checking interval distance is not more than 500mm; then placing the pressed left side plate and right side plate on a workshop plate to be respectively butted with the left support plate and the right support plate by utilizing submerged arc automatic welding, then butting in the length direction, scribing the positions, on which the left reinforcing rib and the right reinforcing rib are required to be installed, of the outer sides of the left side plate and the right side plate from the stern to the bow after welding, checking whether the positions of the reinforcing ribs meet the drawing requirements according to scribing after scribing, welding and positioning after checking qualification, and adding and placing welding compensation quantity according to 1 mm/grade to compensate welding shrinkage;
(2) After the marking is checked to be qualified, the left side plate and the left support plate which are welded are used as the tyres, the left reinforcing rib is welded at the marking position of the reinforcing rib in the step (1), and the back beam is added for fixation after the welding is finished, so that the shape of the back beam can be determined according to the position of the back beam, the main vertical plate is ensured not to deform during hoisting and transportation, and the right side plate and the right support plate are installed in the same way as the right reinforcing rib according to the steps;
(3) Turning over and fixing the product manufactured in the step (2) on a jig frame, installing a stainless steel anti-wear plate, and assembling by using a clamp to ensure the installation fit of the stainless steel anti-wear plate, wherein a sliding shoe slides on the stainless steel anti-wear plate and bears the pressure and the tensile force of the sliding shoe;
(4) Taking a sliding main board, placing the lower side surface of the sliding main board upwards on a field-shaped jig frame or a relatively flat ground, then installing lower reinforcing rib structures, installing a lower reinforcing rib structure in a square shape every 3-5 n-type lower reinforcing rib structures, enabling the positions of the lower reinforcing ribs to be consistent with the positions of the left reinforcing rib and the right reinforcing rib, and performing back welding leveling after finishing;
(5) Installing the product in the step (4) on the product in the step (3), manufacturing a square template before installing the product in the step (4) on the product in the step (3), wherein the size of the template is the same as that of a sliding shoe, placing a left side plate, a left support plate and a left reinforcing rib in the product in the step (3) on a mould, then clamping the template on the left side plate, the left support plate and the left reinforcing rib of the product in the step (3), placing a mould every 0.5 meter, controlling an assembly gap to be within 1mm, abutting the side face of a sliding main plate in the product in the step (4) on the template, then performing welding fixation of the product in the step (4), and re-measuring the flatness of the sliding main plate before welding to ensure that the accuracy requirement of 1/1000mm is met;
(6) Then, putting the right side plate, the right support plate and the right reinforcing rib in the product of the step (3) on a mould, turning over the product of the step (5) and buckling the product of the step (3) on the right side plate, the right support plate and the right reinforcing rib, and then welding;
(7) Step (6), turning over the product, measuring the spacing of the base, and if the spacing is found to have an error, putting the jack into the base to finely adjust the spacing;
secondly, detecting the quality of the base:
in order to ensure that the manufactured base meets the quality requirement, the base is required to be tested, two sets of test sliding rails are required to be manufactured by hard miscellaneous tree according to the dimension data of the stone polishing tower and the dimension of 1:1, then the test sliding rails are used for detecting the base, if the space between the bases is in a problem, a jack is used for fine adjustment, and the base is installed after the detection is qualified;
thirdly, mounting a base:
(1) After the ship body is assembled in sections, firstly performing initiating explosive leveling on the deck surface to ensure that the flatness is less than or equal to 4mm, then drawing a central line for track installation on the deck surface, and drawing central lines at two ends of the track at the same time, wherein the central lines are used as installation datum lines;
(2) Installing on a ship by taking one of the bases as a reference, pulling a steel wire at the center line position of the installation surface, fixing two ends of the steel wire on the ship body, and then assembling and fixing the bases;
(3) The other base is initially positioned in the same way, then the first steel wire is used as the top position of the box, namely the lower plane of the stainless steel wear-resistant plate at the top, the other steel wire is pulled, the base is adjusted and positioned according to the requirement, and the two steel wires are parallel and have equal horizontal spacing;
(4) Taking out a template in a base groove, installing a stainless steel anti-wear plate above a sliding main plate, installing a left vertical plate and a right vertical plate at the upper ends of a left side plate and a right side plate, placing a jack inside the base after the installation is completed for strengthening and positioning, wherein the assembly of the stainless steel anti-wear plate can be installed by using a separated jack, so that the fitting degree of the stainless steel anti-wear plate and the tolerance precision requirement of 0- +1mm are ensured;
(5) And after the positioning of the two bases is finished, the relative positions and the stability of the lower structure of the two bases are checked for the second time, and after the accuracy requirement is met, the welding process is performed through the welding process, so that the whole process is finished.
2. A stone throwing tower foundation according to claim 1, wherein: the distance between the left reinforcing rib, the right reinforcing rib and the lower reinforcing rib between 1/5~2/5 of the sliding rail bow is 1.5-2.5 times of the distance between the left reinforcing rib, the right reinforcing rib and the lower reinforcing rib at other parts.
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| CN107571969B true CN107571969B (en) | 2023-07-25 |
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|---|---|
| CN107571969A (en) | 2018-01-12 |
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Effective date of registration: 20231206 Address after: 264200 zaobeiwan, Gushan Town, economic and technological District, Weihai City, Shandong Province Patentee after: China Merchants Jinling shipping (Weihai) Co.,Ltd. Patentee after: China Merchants Jinling shipping (Jiangsu) Co.,Ltd. Address before: 264200 zaobeiwan, Gushan Town, economic and technological District, Weihai City, Shandong Province Patentee before: China Merchants Jinling shipping (Weihai) Co.,Ltd. |