Hydraulic locking device for roll-on and roll-off connecting bridge

Abstract

The utility model relates to a hydraulic locking device for a roll-on and roll-off connecting bridge, the hydraulic locking device comprises a bridge body and a stand column, the stand column is arranged on a seabed between a wharf and a ship body, the bridge body is provided with a locking assembly, the locking assembly comprises a mounting plate arranged on the bridge body, the mounting plate is provided with a locking oil cylinder, the output end of the locking oil cylinder is provided with a locking column, and the locking column is arranged on the bridge body. A locking plate is arranged at the end of the stand column, and a locking groove matched with the locking column in an inserted mode is formed in the locking plate. The connecting bridge has the effect of improving the stability of the connecting bridge.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of roll-on / roll-off connecting bridges, in particular to a hydraulic locking device for a roll-on / roll-off connecting bridge. BACKGROUND

[0002] As an important equipment connecting a port and a ship, the core function of a roll-on / roll-off connecting bridge is to realize stable connection between the ship and the wharf, and to ensure efficient and safe passing of people, vehicles and goods. When the bridge body of the roll-on / roll-off connecting bridge is pitched to a proper angle, the bridge body is safely locked by a locking device to ensure the stability of the roll-on / roll-off connecting bridge during the working process.

[0003] A conventional locking device is usually a mechanical clamp type. When the angle of the connecting bridge is adjusted, the clamp arm is clamped to the edge of the ship deck by hydraulic or manual driving, and the fixation of the connecting bridge is realized by relying on friction. However, the ship body will sway due to the change of tides or loads during berthing. When the ship body sways, the contact surface of the clamp and the deck edge is prone to relative sliding, which leads to the decrease or even complete failure of the locking force, and the stability of the connecting bridge is greatly reduced, which has obvious defects. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the stability of the connecting bridge, the application provides a hydraulic locking device for a roll-on / roll-off connecting bridge.

[0005] The hydraulic locking device for a roll-on / roll-off connecting bridge provided by the application adopts the following technical scheme:

[0006] The hydraulic locking device for a roll-on / roll-off connecting bridge comprises a bridge body and a stand column. The end of the bridge body is hinged on a wharf. The pitching action of the bridge body is driven by a hydraulic oil cylinder. The stand column is arranged on the seabed between the wharf and the ship body. A locking assembly is arranged on the bridge body. The locking assembly comprises a mounting plate arranged on the bridge body. A locking oil cylinder is arranged on the mounting plate. A locking column is arranged at the output end of the locking oil cylinder. A locking plate is arranged at the end of the stand column. A locking groove is formed in the locking plate and is in plug-in cooperation with the locking column.

[0007] When the roll-on / roll-off connecting bridge is adjusted to a working angle, the locking oil cylinder drives the locking column to move towards the locking plate. When the locking column is inserted into the locking groove, the connection between the bridge body and the stand column is realized by the rigid plug-in action of the two. Since the stand column is directly anchored to the seabed structure, the position of the stand column is not affected by the sway of the ship body or the change of tides. Therefore, the locking point of the bridge body is transferred to a stable support system which is completely independent of the ship body. The problem of contact failure caused by the displacement of the ship body in the traditional clamp type device is effectively avoided, and the stability of the connecting bridge during work is significantly improved.

[0008] Optionally, the number of the column and the locking assembly is two, and the two locking assemblies and the two columns are symmetrically arranged on the two sides of the bridge body.

[0009] By adopting the above technical scheme, when the connecting bridge is adjusted to a suitable working angle, the locking oil cylinders on the two sides of the connecting bridge drive the locking columns to be inserted into the locking grooves, thereby forming stable support on the two sides of the bridge body of the connecting bridge, expanding the effective support area of the bridge body, and further improving the stability of the connecting bridge during work.

[0010] Optionally, the adjusting mechanism further comprises a vertical adjusting assembly and a horizontal adjusting element, the horizontal adjusting element is a rodless adjusting cylinder arranged on the bridge body, the mounting plate is arranged on the moving part of the rodless adjusting cylinder, and the vertical adjusting assembly is used for adjusting the position of the locking plate in the vertical direction.

[0011] By adopting the above technical scheme, when there is a position deviation between the locking groove and the locking column, the rodless adjusting cylinder drives the mounting plate to move along the bridge body in the horizontal direction until the locking column and the locking groove are aligned in the horizontal direction, effectively eliminating the horizontal deviation caused by the deviation of the berthing position of the ship or the manufacturing error of the bridge body, and the vertical adjusting assembly drives the locking plate and the locking groove to be aligned in the vertical direction, effectively eliminating the vertical deviation caused by the settlement of the seabed foundation, thereby ensuring that the locking groove and the locking column can be accurately aligned under different conditions and ensuring the locking effect of the locking assembly.

[0012] Optionally, a groove is arranged on the column, the locking plate is slidably connected in the groove, a sliding groove is arranged on the inner side wall of the groove, the vertical adjusting assembly comprises a sliding block slidably connected in the sliding groove, the cross sections of the sliding groove and the sliding block are square, an adjusting screw is rotatably connected in the sliding groove, the sliding block is threadedly connected on the adjusting screw, and an adjusting motor is arranged on the outer surface of the column to drive the adjusting screw to rotate.

[0013] By adopting the above technical scheme, when there is a vertical deviation, the adjusting motor drives the adjusting screw to rotate, and under the limitation of the cross sections of the sliding groove and the sliding block, the adjusting screw drives the sliding block to vertically ascend and descend along the sliding groove, thereby realizing the change of the vertical position of the locking plate, effectively eliminating the vertical deviation caused by the settlement of the seabed foundation, and ensuring that the locking groove and the locking column are accurately aligned in the vertical direction.

[0014] Optionally, an infrared emitter is arranged at the center of the locking groove, an infrared receiver is arranged at the end of the locking column, and the infrared receiver is electrically connected to the locking oil cylinder, the rodless adjusting cylinder and the adjusting motor through a control system.

[0015] By adopting the above technical scheme, when there is a position deviation between the locking column and the locking groove, the infrared receiver cannot receive the infrared signal, and the control system can accurately control the rodless adjusting cylinder and the adjusting motor to work according to the deviation condition; when the infrared receiver receives the infrared signal from the infrared emitter, the control system automatically controls the rodless adjusting cylinder and the adjusting motor to be closed, and then controls the locking cylinder to work to be locked. In this way, the position of the locking column and the locking groove is automatically adjusted, and the efficiency and accuracy of the locking operation of the roll-on connection bridge are improved.

[0016] Optionally, the locking plate is provided with an accommodating groove in communication with the locking groove, and a fastening column is slidably connected in the accommodating groove. The locking column is provided with a fastening groove in plug connection with the fastening column. A ring groove is formed in the inner side wall of the accommodating groove, and a connecting ring is slidably connected in the ring groove. The connecting ring is sleeved on the outer surface of the fastening column. A plurality of abutting springs are arranged in the ring groove. One end of each of the abutting springs is connected to the inner side wall of the ring groove, and the other end of each of the abutting springs is connected to the connecting ring. The abutting springs abut the fastening column in the fastening groove.

[0017] By adopting the above technical scheme, when the locking column is inserted into the locking groove, the fastening column in the accommodating groove is automatically slid into the fastening groove under the action of the abutting springs, and a secondary mechanical locking structure is formed through the plug connection of the fastening column and the fastening groove, which effectively limits the displacement of the locking column in the locking groove, thereby effectively avoiding the situation that the locking disappears when the locking cylinder is accidentally lost pressure, and further improving the stability of the connection bridge during work.

[0018] Optionally, the top surface of the stand column is provided with a winch, and a steel wire rope is wound on the winch. The end surface of the stand column is rotatably connected with a fixed pulley, and the end of the steel wire rope is wound on the fixed pulley and connected with the top end of the fastening column.

[0019] By adopting the above technical scheme, when unlocking is needed, the winch is started to drive the steel wire rope to be wound. The steel wire rope pulls the fastening column to move away from the fastening groove in the winding process. When the fastening column is separated from the fastening groove, the locking cylinder drives the locking column to be separated from the locking groove, so as to realize the unlocking of the connection bridge and the stand column. The unlocking process does not need manual operation, and the convenience of worker operation is improved.

[0020] Optionally, a rubber pad is arranged on the inner side wall of the locking groove.

[0021] By adopting the above technical scheme, when the locking column and the locking groove are in plug connection, the rubber pad can effectively buffer the impact load generated in the process of mechanical plug connection, and the service life of the locking column is improved.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The application sets up a column and a locking assembly anchored on the seabed foundation. Since the column is directly anchored to the seabed structure, the position of the column is not affected by the hull sway or tidal changes, thereby shifting the locking point of the bridge body to a stable support system completely independent of the hull, effectively avoiding the contact failure problem caused by the displacement of the hull in the traditional caliper device, and significantly improving the stability of the connecting bridge during operation.

[0024] 2. The application sets up an adjusting mechanism. When there is a positional deviation between the locking groove and the locking column, the horizontal adjusting member drives the locking column and the locking groove to align in the horizontal direction, effectively eliminating the horizontal deviation caused by the deviation of the ship's berthing position or the manufacturing error of the bridge body. The vertical adjusting assembly drives the locking plate and the locking groove to align in the vertical direction, effectively eliminating the vertical deviation caused by the settlement of the seabed foundation, thereby ensuring that the locking groove and the locking column can be accurately aligned under different conditions and ensuring the locking effect of the locking assembly.

[0025] 3. The application sets up a fastening column and a fastening groove. When the locking column is inserted into the locking groove, the fastening column in the receiving groove automatically slides into the fastening groove under the action of the abutting spring. The secondary mechanical locking structure is formed by the insertion and fitting of the fastening column and the fastening groove, effectively limiting the displacement of the locking column in the locking groove, thereby effectively avoiding the situation that the locking disappears when the locking oil cylinder accidentally loses pressure, further improving the stability of the connecting bridge during operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the application.

[0027] Figure 2 is a structural schematic diagram of the adjusting mechanism in the embodiment of the application.

[0028] Figure 3 is a cross-sectional view of the column in the embodiment of the application.

[0029] Figure 4 is Figure 3 is an enlarged view of position A in

[0030] BRIEF DESCRIPTION OF DRAWINGS: 01, hydraulic oil cylinder; 1, bridge body; 2, column; 3, locking assembly; 31, mounting plate; 32, locking oil cylinder; 33, locking column; 331, infrared receiver; 332, fastening groove; 4, groove; 41, sliding groove; 5, locking plate; 51, locking groove; 511, rubber pad; 512, infrared emitter; 52, receiving groove; 521, ring groove; 6, adjusting mechanism; 61, vertical adjusting assembly; 611, sliding block; 612, adjusting screw; 613, adjusting motor; 62, horizontal adjusting member; 621, rodless adjusting cylinder; 7, fastening column; 71, connecting ring; 8, abutting spring; 9, winch; 91, steel wire rope; 10, fixed pulley. DETAILED DESCRIPTION

[0031] The application will be further described below in conjunction with the accompanying drawings. Figures 1-4 The application will be further described below in conjunction with the accompanying drawings.

[0032] The embodiments of the application disclose a hydraulic locking device for a roll-on connection bridge.

[0033] With reference to Figure 1 The hydraulic locking device for the roll-on connection bridge comprises a bridge body 1, which is a body of the connection bridge, and the end of the bridge body 1 is hinged on a wharf and the pitching action is driven by a hydraulic oil cylinder 01.

[0034] With reference to Figure 1 And Figure 2 The opposite sides of the bridge body 1 are provided with a stand 2, each of which is anchored on a seabed structure between the wharf and the ship body, and the opposite sides of the bridge body 1 are provided with a locking assembly 3, specifically, the locking assembly 3 comprises a mounting plate 31 which is slidably connected to the bridge body 1, the upper end surface of the mounting plate 31 is fixedly provided with a locking oil cylinder 32, the output end of the locking oil cylinder 32 is fixedly connected with a locking column 33, the end of each stand 2 is provided with a groove 4, and the locking plate 5 is slidably connected in the groove 4, the locking plate 5 is provided with a locking groove 51 which is inserted and matched with the locking column 33, and the end of the locking groove 51 which faces the locking column 33 is fixedly connected with a rubber pad 511, so that the mechanical wear of the locking column 33 is reduced through the rubber pad 511.

[0035] When the roll-on connection bridge is adjusted to a working angle, the locking oil cylinder 32 drives the locking column 33 to move towards the locking plate 5, and when the locking column 33 is inserted into the locking groove 51, the connection between the bridge body 1 and the stand 2 is realized through the rigid insertion of the two, since the stand 2 is directly anchored to the seabed structure, the position of the stand 2 is not affected by the ship body swing or the tidal change, so that the locking point of the bridge body 1 is transferred to a stable support system which is completely independent of the ship body, the contact failure problem caused by the displacement of the ship body in the traditional caliper type device is effectively avoided, and the stability of the connection bridge during work is significantly improved.

[0036] With reference to Figure 1 And Figure 2 In actual use, the vertical position of the stand 2 will deviate due to the seabed foundation settlement, and the horizontal position of the mounting plate 31 will deviate due to the ship docking position deviation or the bridge body 1 manufacturing error, so that the alignment accuracy of the locking column 33 and the locking groove 51 is reduced, and the smooth progress of the locking work is hindered.

[0037] In order to solve the above technical problems, the locking device further comprises an adjusting mechanism 6, which comprises a vertical adjusting assembly 61 and a horizontal adjusting member 62, the horizontal adjusting member 62 is a rodless adjusting cylinder 621 fixedly embedded in the inside of the bridge body, the length direction of the rodless adjusting cylinder 621 is parallel to the width direction of the stand column 2, and the mounting plate 31 is fixedly installed on the moving part of the rodless adjusting cylinder 621.

[0038] With reference to Figure 2 and Figure 3 , a sliding groove 41 is formed in the inner side wall of the recess 4, the length directions of the sliding groove 41 and the recess 4 are parallel to the length direction of the stand column 2, the vertical adjusting assembly 61 comprises a sliding block 611 slidingly connected in the sliding groove 41, the cross sections of the sliding groove 41 and the sliding block 611 are square, an adjusting screw 612 is rotatably connected in the sliding groove 41, and the sliding block 611 is threadedly connected on the adjusting screw 612.

[0039] With reference to Figure 2 and Figure 3 , an infrared emitter 512 is fixedly embedded in the center of the inner side wall of the locking groove 51, and an infrared receiver 331 is fixedly embedded in the outer end face of the locking column 33 facing the locking plate 5, and the infrared receiver 331 is electrically connected to the locking oil cylinder 32, the rodless adjusting cylinder 621 and the adjusting motor 613 through the control system.

[0040] When there is a positional deviation between the locking column 33 and the locking groove 51, the infrared receiver 331 cannot receive the infrared signal, and the control system controls the rodless adjusting cylinder 621 and the adjusting motor 613 to work according to the deviation, at this time, the rodless adjusting cylinder 621 drives the mounting plate 31 to move transversely along the bridge body 1 until the locking column 33 and the locking groove 51 are aligned in the horizontal direction, effectively eliminating the horizontal deviation caused by the deviation of the berthing position of the ship or the manufacturing error of the bridge body 1, and the adjusting motor 613 drives the adjusting screw 612 to rotate, under the cross section limitation of the sliding groove 41 and the sliding block 611, the adjusting screw 612 drives the sliding block 611 to vertically ascend along the sliding groove 41 until the locking column 33 and the locking groove 51 are aligned in the vertical direction, effectively eliminating the vertical deviation caused by the settlement of the seabed foundation.

[0041] When the adjusting work of the adjusting mechanism 6 is completed, the locking column 33 and the locking groove 51 remain in the aligned state, and after the infrared receiver 331 receives the infrared signal from the infrared emitter 512, the control system automatically controls the rodless adjusting cylinder 621 and the adjusting motor 613 to be closed, and then controls the locking oil cylinder 32 to work to lock.

[0042] With reference to Figure 3 and Figure 4The locking plate 5 is provided with a containing groove 52 communicated with the locking groove 51, the containing groove 52 is vertically arranged, the containing groove 52 is slidably connected with a fastening column 7, the fastening column 7 is tapered towards the end of the locking groove 51, and the locking column 33 is provided with a fastening groove 332 matched with the fastening column 7.

[0043] Referring to Figure 3 and Figure 4 The inner side wall of the containing groove 52 is provided with a ring groove 521, the ring groove 521 is slidably connected with a connecting ring 71, the connecting ring 71 is fixedly sleeved on the outer surface of the fastening column 7, the ring groove 521 is internally provided with a plurality of abutting springs 8, one end of the plurality of abutting springs 8 is fixedly connected to the inner side wall of the ring groove 521, and the other end is fixedly connected to the connecting ring 71, and the abutting spring 8 generates a pushing force on the connecting ring 71 to abut the fastening column 7 in the fastening groove 332.

[0044] Referring to Figure 3 and Figure 4 The top surface of the stand column 2 is fixedly installed with a winch 9, the winch 9 is provided with a steel wire rope 91, the end surface of the stand column 2 is rotatably connected with a fixed pulley 10, and the end of the steel wire rope 91 is provided on the fixed pulley 10 and is fixedly connected with the top end of the fastening column 7.

[0045] During the process of inserting the locking column 33 into the locking groove 51, the locking column 33 pushes the fastening column 7 to move towards the inside of the containing groove 52, when the locking column 33 is completely inserted into the locking groove 51, the fastening groove 332 moves to the position directly below the fastening column 7, the abutting spring 8 abuts and inserts the fastening column 7 in the fastening groove 332, the secondary mechanical locking structure is formed by the insertion of the fastening column 7 and the fastening groove 332, which effectively limits the displacement of the locking column 33 in the locking groove 51, thereby effectively avoiding the situation that the locking disappears when the locking oil cylinder 32 is accidentally lost pressure, and further improving the stability of the connecting bridge during work.

[0046] When unlocking is needed, the winch 9 is started to drive the steel wire rope 91 to be wound, the steel wire rope 91 pulls the fastening column 7 to move away from the fastening groove 332 during winding, and when the fastening column 7 is separated from the fastening groove 332, the locking oil cylinder 32 drives the locking column 33 to separate from the locking groove 51, so as to realize the unlocking of the connecting bridge and the stand column 2.

[0047] The implementation principle of the hydraulic locking device for the roll-on connecting bridge is as follows: when the roll-on connecting bridge is adjusted to a working angle, the locking cylinder 32 drives the locking column 33 to move towards the locking plate 5, and when the locking column 33 is inserted into the locking groove 51, the connection between the bridge body 1 and the stand column 2 is realized through the rigid plug-in effect of the two, and since the stand column 2 is directly anchored to the seabed structure, the position of the stand column 2 is not affected by the ship body swing or the tidal change, so that the locking point of the bridge body 1 is transferred to a stable support system completely independent of the ship body, effectively avoiding the contact failure problem of the traditional caliper type device caused by the displacement of the ship body, and significantly improving the stability of the connecting bridge during work.

[0048] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A hydraulic locking device for a roll-on connection bridge, comprising a bridge body (1) and a column (2), the end of the bridge body (1) is hinged on the wharf, the pitching action of the bridge body (1) is driven by a hydraulic oil cylinder (01), characterized in that, The column (2) is arranged on the seabed between the wharf and the ship body, the bridge body (1) is provided with a locking assembly (3), the locking assembly (3) comprises a mounting plate (31) arranged on the bridge body (1), the mounting plate (31) is provided with a locking oil cylinder (32), and the output end of the locking oil cylinder (32) is provided with a locking column (33); the end of the column (2) is provided with a locking plate (5), and the locking plate (5) is provided with a locking groove (51) matched with the locking column (33).

2. A hydraulic locking device for a roll-on connection bridge according to claim 1, characterized in that The number of the column (2) and the locking assembly (3) is two, and the two locking assemblies (3) and the two columns (2) are symmetrically arranged on the two sides of the bridge body (1).

3. A hydraulic locking device for a roll-on connection bridge according to claim 1, characterized in that Further comprising an adjusting mechanism (6), the adjusting mechanism (6) comprises a vertical adjusting assembly (61) and a horizontal adjusting part (62), the horizontal adjusting part (62) is a rodless adjusting cylinder (621) arranged on the bridge body, the mounting plate (31) is arranged on the moving part of the rodless adjusting cylinder (621), and the vertical adjusting assembly (61) is used for adjusting the position of the locking plate (5) in the vertical direction.

4. A hydraulic locking device for a roll-on connection bridge according to claim 3, characterized in that The column (2) is provided with a groove (4), the locking plate (5) is slidably connected in the groove (4), the inner side wall of the groove (4) is provided with a sliding groove (41), the vertical adjusting assembly (61) comprises a sliding block (611) slidably connected in the sliding groove (41), the cross sections of the sliding groove (41) and the sliding block (611) are square, the sliding groove (41) is rotatably connected with an adjusting screw (612), and the sliding block (611) is threadedly connected with the adjusting screw (612).

5. A hydraulic locking device for a roll-on connection bridge according to claim 4, characterized in that The center of the locking groove (51) is provided with an infrared emitter (512), the end of the locking column (33) is provided with an infrared receiver (331), and the infrared receiver (331) is electrically connected to the locking oil cylinder (32), the rodless adjusting cylinder (621) and the adjusting motor (613) through a control system.

6. A hydraulic locking device for a roll-on connection bridge according to claim 1, characterized in that The locking plate (5) is provided with a containing groove (52) communicated with the locking groove (51), the containing groove (52) is slidably connected with a fastening column (7), the locking column (33) is provided with a fastening groove (332) matched with the fastening column (7), the inner side wall of the containing groove (52) is provided with a ring groove (521), the ring groove (521) is slidably connected with a connecting ring (71), the connecting ring (71) is sleeved on the outer surface of the fastening column (7), a plurality of abutting springs (8) are arranged in the ring groove (521), one end of each of the plurality of abutting springs (8) is connected to the inner side wall of the ring groove (521), the other end of each of the plurality of abutting springs (8) is connected to the connecting ring (71), and the abutting spring (8) abuts the fastening column (7) in the fastening groove (332).

7. A hydraulic locking device for a roll-on connection bridge according to claim 6, characterized in that The top surface of the column (2) is provided with a winch (9), a steel wire rope (91) is wound on the winch (9), the end surface of the column (2) is rotationally connected with a fixed pulley (10), the end of the steel wire rope (91) is wound on the fixed pulley (10) and is connected with the top end of the fastening column (7).

8. The hydraulic locking device for a roll-on connection bridge according to claim 1, characterized in that The inner side wall of the locking groove (51) is provided with a rubber pad (511).

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