CN210555495U - Ro-ro vessel ramp manufacturing, mounting and inspecting device - Google Patents
Ro-ro vessel ramp manufacturing, mounting and inspecting device Download PDFInfo
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- CN210555495U CN210555495U CN201921517746.4U CN201921517746U CN210555495U CN 210555495 U CN210555495 U CN 210555495U CN 201921517746 U CN201921517746 U CN 201921517746U CN 210555495 U CN210555495 U CN 210555495U
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Abstract
The utility model discloses an installation verifying attachment is made to ro-Ro vessel ramp, including special bed-jig and special wooden model, special bed-jig includes top frame and the many landing legs that support top frame, and top frame one end is the arc surface, and the rest surface of top frame is smooth, and the arc surface matches with the panel one end arc surface of ramp. The special wooden template comprises side plates on two sides and a plurality of transverse plates fixed between the two side plates at intervals, the lower side edge of each side plate is in a structure that the two ends of a middle circular arc are oblique lines, the middle parts of the side plates are respectively marked with a plurality of rib position marking lines matched with the rib position positions of the ship body sections, and the two ends of each side plate are respectively marked with a tangent point marking line of the two ends of the middle circular arc and the tangent point of the oblique line. The utility model discloses simple structure, the preparation installation inspection is convenient, has improved the accuracy nature of ramp location to can guarantee that the ramp upside has sufficient headroom, thereby improve the security that the vehicle passed through.
Description
Technical Field
The utility model relates to a ro-ro ship, in particular to ro-ro ship is used for manufacturing installation verifying attachment on the ramp about the vehicle, belongs to ship engineering technical field.
Background
The roll-on-roll-off ship is like a running multilayer indoor parking building, a plurality of vehicles can be loaded on the multilayer deck in one time, and the vehicles need to enter or exit from the deck on each layer through the ramp when entering or exiting the roll-on-roll-off ship. Unlike multi-story indoor parking buildings, rolling vessels are also required to park vehicles on their ramps in order to increase their maximum load capacity. The correct installation of the ramp will seriously affect the safety of the rolling vessel in and out of vehicles. If the ramp installation is inaccurate, the vehicle passes through the ramp, the vehicle chassis is caused to be laid down or the top of the vehicle is collided with the cross beam of the ship body to damage the vehicle, and the shipowner needs to compensate, so that the great loss is caused. When the vertical distance error of the ramp between the layers of the multi-layer deck is serious, the vehicle cannot be parked on the ramp, and the carrying capacity of the roll-on-roll-off ship is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a ro-Ro vessel ramp makes installation verifying attachment improves the installation accuracy of ramp and ro-Ro vessel's capacity.
The utility model discloses a following technical scheme realizes:
the utility model provides a ro-Ro vessel ramp makes installation verifying attachment, is including the special bed-jig that is used for ramp welding to take shape and the special wooden model that is used for verifying ramp one end arc surface, special bed-jig adopts shaped steel welding to form, including top frame and the many landing legs that support top frame, top frame one end is the arc surface of downwarping, and the rest surface of top frame is level and smooth, the arc surface matches with the panel one end arc surface of ramp.
The object of the invention is further achieved by the following technical measures.
Furthermore, the longitudinal distance between the lower side support legs of the flat part of the top frame surface is matched with the rib position distance of the ship body section of the installation ramp, and the longitudinal distance between the lower side support legs of the downward-bent arc surface at one end of the top frame is 1/2 of the longitudinal distance between the lower side support legs of the flat part of the top frame surface.
Furthermore, the special wooden sample plate comprises side plates on two sides and a plurality of transverse plates fixed between the two side plates at intervals, the lower side edge of each side plate is in a structure that two ends of a middle arc are oblique lines, and the radius of the middle arc is matched with the radius of an arc surface at one end of the ramp. The middle part of the side plate is respectively marked with a plurality of rib position marking lines matched with the rib position of the ship body section, and the two ends of the side plate are respectively marked with tangent point marking lines of the two ends of the middle circular arc and the tangent point of the oblique line.
The utility model discloses a special bed-jig simple structure, the preparation installation inspection is convenient, welds the ramp on special bed-jig, can guarantee that the planar roughness of the great ramp of area reaches the requirement, also is convenient for weld the ramp in batches. The utility model discloses a special wooden model can be used for whether the bend radius of inspection ramp one end meets the requirements, can also inspect the circular arc and the sharp tangent point mutually of ramp to the tangent point of ramp one end circular arc and slash is looked for with several rib position mark lines and tangent point mark line at special wooden model both sides sideboard middle part, improves the accuracy nature and the checking efficiency of ramp inspection. The comfort level of the vehicle passing through the ramp is improved; and the sufficient clearance height of the upper side of the ramp can be ensured, so that the accident that the chassis of the vehicle is put at the bottom or the top of the vehicle touches the cross beam of the ship body is avoided, and the passing safety of the vehicle is improved.
The advantages and features of the invention will be illustrated and explained by the following non-restrictive description of preferred embodiments, which are given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a reaction ramp on a special jig;
FIG. 2 is an enlarged three-dimensional view of a specialized wood template;
FIG. 3 is a schematic view of a vehicle traveling on a grade;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a schematic view of a radius of a circle at one end of a check ramp using a special wood template;
fig. 6 is a schematic illustration of welding ramp height coordinate points on both sidewalls of a hull section.
Detailed Description
The invention will be further explained with reference to the drawings and an embodiment of the 800-stall ro-ro vessel.
As shown in fig. 1, the verification device for manufacturing and installing the ramp of the ro-ro ship in the embodiment comprises a special jig frame 1 for welding and forming the ramp 10 and a special wooden template 2 for verifying the arc surface at one end of the ramp 10, wherein the special jig frame 1 is formed by welding profile steel, and comprises a top frame 11 and a plurality of support legs 12 for supporting the top frame 11, the left end of the top frame 11 is an arc surface 111 which is bent downwards, the rest part of the top frame 11 is flat in surface, the arc surface 111 is matched with the arc surface at one end of a panel 101 of the ramp 10, so that the arc end of the ramp 10 is formed conveniently, and the plane of the ramp with a larger area is more. As shown by the rib position lines FR80 to FR94 on the upper side of fig. 1, the longitudinal spacing X of the legs 12 on the lower side of the flat part of the surface of the top frame 11 matches the rib position spacing Y of the hull section of the mounting ramp 10, in this embodiment X and Y are both 600 mm. The longitudinal distance Z between the lower side legs 12 of the downward curved arc surface at one end of the top frame 11 is 1/2 of the longitudinal distance X between the lower side legs 12 of the flat part of the surface of the top frame 11, so that the shape of the curved arc surface at one end of the top frame 11 is more accurate.
As shown in fig. 2, the special wood template 2 includes two side plates 21 and 4 transverse plates 22 fixed between the two side plates 21 at intervals, the edge shape of the lower side of the side plate 21 is a structure with oblique lines at two ends of a middle arc, the middle arc radius is matched with the radius R of an arc surface at one end of the ramp 10, and the radius R of the arc surface in this embodiment is 25 m. The middle part of the side plate 21 is respectively marked with 6 rib position mark lines 211 matched with the rib position of the ship body section, and the two ends of the side plate 21 are respectively marked with tangent point mark lines 212 of the two ends of the middle circular arc and the tangent point of the oblique line, so that the tangent point of the circular arc and the oblique line at one end of the ramp 10 can be conveniently found, and the accuracy and the checking efficiency of the ramp checking are improved.
The roll-on-roll-off vessel ramp manufacturing installation inspection device shown in fig. 3-6 is used in the following process:
1) processing and testing of plates and profiles
A numerical control or plasma cutting machine is adopted to automatically cut the plate of the blanking ramp 10, the cut of the plate is smooth, and the cutting precision error meets the requirements, and a powder sprayer is used to automatically spray complete and clear assembling position lines and component inspection lines of reinforcing ribs and other components on the plate.
According to the length and width requirements of the ramp 10, an automatic welding machine is adopted to transversely splice and weld the plate parts into the panel 101 of the ramp.
Selecting angle steel as a longitudinal reinforcing rib 102 of the ramp; cutting and blanking a plurality of longitudinal reinforcing ribs 102 according to the unfolding length, then bending and forming one ends of the longitudinal reinforcing ribs 102 according to the requirement of 25m of the bending radius of the arc surface at one end of the ramp 10, and using a special sample plate strip or a marine loose sample plate to test the bending radius of the arc surface at one end of each reinforcing rib; meanwhile, a plurality of transverse reinforcing ribs 103 with T-shaped end surfaces are welded in a blanking mode.
2) One end of the plate is bent into a circular arc surface
Bending one end of a panel 101 of the ramp 10 into an arc surface with a bending radius R of 25m by a plate bending machine or other plate bending equipment, and checking the bending radius R of the ramp 10 by using a special wood sample plate 2 or a marine loose sample plate in the bending process; the width of the panel 101 is 5-10 mm less than the width of the two side walls 20 of the ship body section 100 where the ramp 10 is to be installed, so that the ramp 10 can be conveniently lifted into the two side walls 20 of the ship body section 100.
3) Reaction welding ramp 10 on special jig frame 2
As shown in fig. 1, the panel 101 is hoisted upside down to the special jig 1, the upside of the panel 101 abuts on the top frame 11, and a plurality of blocks or weights are pressed on the panel 101 to prevent the panel 101 from being deformed when the longitudinal beads 102 and the transverse beads 103 are welded. The arc surface at the left end of the panel 101 is attached to the arc surface at the left end of the top frame 11.
According to the method, welding position lines of the longitudinal reinforcing ribs 102 and the transverse reinforcing ribs 103 are marked on the panel 101, the longitudinal reinforcing ribs 102 and the transverse reinforcing ribs 103 are firstly positioned on the corresponding welding position lines in a spot welding mode, after the welding positions of the longitudinal reinforcing ribs 102 and the transverse reinforcing ribs 103 are checked to be correct through retest, the longitudinal reinforcing ribs 102 and the transverse reinforcing ribs 103 are respectively welded and fixed on the panel 101, and welding deformation of the reinforcing ribs is controlled in the welding process. Angle steel cross rods 104 are respectively welded at two ends of the ramp 10 to improve the rigidity of the ramp, so that deformation during hoisting is prevented; thereby completing the welding of the ramp 10.
4) The installation position lines of the ramp 10 are marked on the two side walls 20 of the hull section 100 of the installation ramp 10
As shown in fig. 5 and 6, first, using a laser theodolite, height coordinate points X1 to X21 welded to the ramp 10 corresponding to each rib position of the hull section 100 are respectively identified on both side walls 20 of the installation ramp 10 from the upper deck 40 toward the lower deck 30 (indicated by a dimension line in fig. 6) with reference to the deck (i.e., the upper deck 40) of the hull section 100 being reversed, and the height coordinate points are connected to an installation position line 201 of the ramp 10.
5) Welding and positioning of ramp 10 in ship body segment
Lifting the ramp 10 to a position between two side walls 20 of the installation ramp 10 of the ship body segment 100 by adopting a four-point lifting ramp method, obliquely supporting the lower side of the ramp 10 on a temporary support frame of a lower deck 30, and arranging a plurality of jacks 60 on the temporary support frame 50 for adjusting the angle of the ramp 10; the angle of the ramp 10 is then adjusted by means of the jacks 60 according to the height coordinate Xi of the corresponding position. And respectively rechecking the height positions of the corresponding points of the ramp 10 by using a steel tape, then checking whether the arc and the tangent point of the arc and the straight line at one end of the ramp 10 meet the requirements or not by using the special wood sample plate 2, if not, correcting, then detecting each height coordinate by a quality assurance department and a shipowner, and recording the detection data of the height coordinate points. And then, the ramp 10 is positioned and welded between the two side walls 20 of the ship body section 100 by adopting symmetrical welding or other methods for reducing welding deformation, 400mm is reserved at each of the two ends of the ramp 10 and is not temporarily connected with the two side walls in a fillet welding mode, and therefore the ramp 10 can be smoothly butted with the ramp on the upper side of the ramp. The ramp 10 is simulated by a heavy object having the same vehicle weight, the strength of the ramp 10 is verified, and the height coordinates of the ramp 10 are detected.
6) When the hull sections 100 are folded, the two ends of the ramp 10 are respectively welded with the lower deck 30 and the other ramp 70 of the other hull section
Before the two ship body sections are folded, checking each height coordinate of the ramp again, and if each height coordinate is within +/-5 mm of a specified tolerance value, performing flat welding connection between the upper end of the ramp 10 and the lower end of the previous ramp 70 of the other ship body section; when welding, firstly, the upper end surface of the ramp 10 is welded with the lower end surface of another ramp 70 of another ship body segment, and then 400mm lengths of the two ends of the ramp 10 left in the step 5) are welded with the two side walls 20 vertically. And then detecting each height coordinate of the whole ramp, and if the deformation exceeds the tolerance value of the corresponding height coordinate, correcting to make the deformation within the tolerance value.
And after the welding of the integral ramp is finished, the distance H1 between the lowest point of the ramp 10 and the bottom surface of the cross beam 401 at the lower side of the upper deck 40 is detected again, so that the installation and the inspection of the integral ramp are finished.
When each height coordinate is detected, at least 5 points are transversely measured at each measuring position, the error value of the height direction is within 5mm, and the local part is not more than 10 mm; the tolerance value of the planeness of the whole ramp is +/-5 mm.
In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (4)
1. The utility model provides a ro-ro vessel ramp makes installation verifying attachment which characterized in that: the special jig frame is formed by welding profile steel and comprises a top frame and a plurality of support legs for supporting the top frame, one end of the top frame is a downward bent arc surface, the surface of the rest part of the top frame is smooth, and the arc surface is matched with one end arc surface of a panel of the ramp.
2. The ro-ro vessel ramp manufacturing installation inspection device of claim 1, wherein: the longitudinal distance between the lower side legs of the flat part of the surface of the top frame is matched with the rib position distance of the ship body section of the installation ramp, and the longitudinal distance between the lower side legs of the downward bending arc surface at one end of the top frame is 1/2 of the longitudinal distance between the lower side legs of the flat part of the surface of the top frame.
3. The ro-ro vessel ramp manufacturing installation verification device of claim 1, wherein: the special wood sample plate comprises side plates on two sides and a plurality of transverse plates fixed between the two side plates at intervals, the lower side edge of each side plate is in a structure that two ends of a middle arc are oblique lines, and the radius of the middle arc is matched with the radius of an arc surface at one end of a ramp.
4. The ro-ro vessel ramp manufacturing installation verification device of claim 3, wherein: the middle part of the side plate is respectively marked with a plurality of rib position marking lines matched with the rib position of the ship body section, and the two ends of the side plate are respectively marked with tangent point marking lines of the two ends of the middle circular arc and the tangent point of the oblique line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921517746.4U CN210555495U (en) | 2019-09-12 | 2019-09-12 | Ro-ro vessel ramp manufacturing, mounting and inspecting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921517746.4U CN210555495U (en) | 2019-09-12 | 2019-09-12 | Ro-ro vessel ramp manufacturing, mounting and inspecting device |
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| CN210555495U true CN210555495U (en) | 2020-05-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525580A (en) * | 2019-09-12 | 2019-12-03 | 江苏省镇江船厂（集团）有限公司 | Roll-on-roll-off ship ramp manufacture installation verifying attachment and method |
| CN112793733A (en) * | 2021-02-25 | 2021-05-14 | 广船国际有限公司 | Ship assembling method |
| CN114088538A (en) * | 2021-12-22 | 2022-02-25 | 武昌船舶重工集团有限公司 | Ship springboard berth ballast test method |
-
2019
- 2019-09-12 CN CN201921517746.4U patent/CN210555495U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525580A (en) * | 2019-09-12 | 2019-12-03 | 江苏省镇江船厂（集团）有限公司 | Roll-on-roll-off ship ramp manufacture installation verifying attachment and method |
| CN110525580B (en) * | 2019-09-12 | 2024-05-14 | 江苏省镇江船厂（集团）有限公司 | Manufacturing, installing and checking device and method for ramp of roll-on roll-off ship |
| CN112793733A (en) * | 2021-02-25 | 2021-05-14 | 广船国际有限公司 | Ship assembling method |
| CN114088538A (en) * | 2021-12-22 | 2022-02-25 | 武昌船舶重工集团有限公司 | Ship springboard berth ballast test method |
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