CN110816756B - Side-suspension type single-lifting-point high-speed lifting platform and working method - Google Patents
Side-suspension type single-lifting-point high-speed lifting platform and working method Download PDFInfo
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- CN110816756B CN110816756B CN201911008260.2A CN201911008260A CN110816756B CN 110816756 B CN110816756 B CN 110816756B CN 201911008260 A CN201911008260 A CN 201911008260A CN 110816756 B CN110816756 B CN 110816756B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/16—Arrangement of ship-based loading or unloading equipment for cargo or passengers of lifts or hoists
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/50—Vessels or floating structures for aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
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Abstract
A side-hung single-lifting-point high-speed lifting platform and a working method thereof are disclosed, wherein the lifting platform comprises a platform arranged on one side of a ship body, a driving device for driving the platform to lift and a platform protection device; including establishing at the platform of hull one side and the drive arrangement that drive platform goes up and down, the bottom of platform is equipped with the base, the both ends of base stretch out the platform both sides and form the connecting seat, drive arrangement is used in on the connecting seat, the side of hull corresponds platform department forms the passageway that supplies the platform to reciprocate, the both sides of passageway are equipped with the guide rail, be equipped with on the connecting seat with guide rail complex guide pulley group, at least one side of guide rail is equipped with the guide slot, guide pulley group is including establishing guide pulley in the guide slot. When the lifting platform is stopped at the edge of the deck of the ship body, the top surface of the platform is flush with the deck of the ship body, the airplane can be directly stopped on the platform from the deck at the moment, and after the airplane is stopped stably, the platform is driven to descend from one side of the ship body through the driving device, so that the airplane on the deck of the ship body is lifted and transported.
Description
Technical Field
The invention relates to a lifting platform, in particular to a side-suspension type single-lifting-point high-speed lifting platform applied to a ship and a working method.
Background
The large ship with the transportation or loading function generally has a lifting platform arranged on a ship body due to the requirement of carrying, and the lifting platform generally used for cargo transportation is mainly a boom type platform. The existing large ships with airplane berthing are usually berthed on splints of a ship body, the splints are limited in area and exposed, so that the airplane needs to be collected in the ship body, and the platform capable of being hoisted on the ship body needs to be developed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a side-suspension type single-lifting-point high-speed lifting platform and a working method, which can be used for lifting large goods such as airplanes and the like on ships, and have high lifting stability.
In order to solve the technical problems, the technical scheme of the invention is as follows: a side-hung single-lifting-point high-speed lifting platform comprises a platform arranged on one side of a ship body, a driving device for driving the platform to lift and a platform protection device;
the bottom of the platform is provided with a base, two ends of the base extend out of two sides of the platform to form a connecting seat, the driving device acts on the connecting seat, a channel for the platform to move up and down is formed on the side surface of the ship body corresponding to the platform, guide rails are arranged on two sides of the channel, the connecting seat is provided with a guide wheel group matched with the guide rails, at least one side of each guide rail is provided with a guide groove, and each guide wheel group comprises a guide wheel arranged in the guide groove; a notch groove for the platform to stop is formed in the edge of a deck of the ship body, and an opening communicated with the storage space in the ship body is formed in the channel on the side face of the ship body;
the driving device comprises a self-weight balancing mechanism for balancing the weight of the lifting platform, a lifting mechanism for lifting the lifting platform, a guide rail frame, a movable pulley trolley walking on the guide rail frame, a steel wire rope and a pulley mechanism for guiding the steel wire rope; the gravity balance mechanism comprises a compensation oil cylinder, a compensation energy accumulator group and an air accumulator group, the air accumulator group is connected with the compensation energy accumulator group, the compensation energy accumulator group is connected with the compensation oil cylinder, a piston rod of the compensation oil cylinder acts on the movable pulley trolley, the lifting mechanism comprises two control oil cylinders and an oil pump, the piston rod of each control oil cylinder acts on the movable pulley trolley, the oil pump controls the piston rod of each control oil cylinder to stretch, the two control oil cylinders are respectively arranged on two sides of the compensation oil cylinder and form an oil pump group with the compensation oil cylinder, and the oil pump group is hinged to the guide rail frame; the movable pulley trolley comprises a frame, and a first movable pulley and a second movable pulley which are pivoted on the frame, wherein the first movable pulley and the second movable pulley are arranged side by side to form a movable pulley block, guide wheels are arranged on two sides of the frame, and the guide wheels are matched with guide rails on the guide rail frame; the pulley mechanism comprises two groups of first pulley blocks which respectively guide two ends of a steel wire rope to be connected with the lifting platform and a second pulley block which guides the steel wire rope to be connected with the movable pulley trolley, the first pulley block comprises a first fixed pulley, a second fixed pulley which is at the same height with the first fixed pulley, a third fixed pulley and a first steering pulley which are arranged below the second fixed pulley, the second pulley block comprises a fourth fixed pulley, a fifth fixed pulley, a sixth fixed pulley and a seventh fixed pulley, the fourth fixed pulley, the fifth fixed pulley and the sixth fixed pulley are vertically arranged up and down and form the fixed pulley block, and the seventh fixed pulley is arranged above the fixed pulley block; one end of the steel wire rope is connected with one end of the lifting platform, and the other end of the steel wire rope sequentially passes through the first pulley block, the fourth fixed pulley, the first movable pulley, the fifth fixed pulley, the second movable pulley, the sixth fixed pulley, the seventh fixed pulley and the second pulley block and then is connected with the other side of the lifting platform;
the platform protection device comprises a platform locking mechanism and a platform lifting reinforcing mechanism, the platform locking mechanism comprises an oil cylinder lock pin arranged in the platform and a lock pin hole which is arranged on the ship body and matched with the oil cylinder lock pin, the platform lifting reinforcing mechanism comprises more than two steel wire ropes, and each steel wire rope corresponds to one group of pulley mechanisms.
As an improvement, the top surface of the base comprises an upper plane, a lower plane and a middle inclined plane, and the upper plane is connected with the lower plane through the middle inclined plane; the platform includes fixed part and extension, the top surface of fixed part and the top surface parallel and level of extension, the bottom surface shape of fixed part and the top surface shape cooperation of base, the extension is right trapezoid.
As an improvement, the connecting seat is provided with two groups of guide wheel sets which are arranged up and down, and each guide wheel set comprises a tripod and two guide wheels which are pivoted on the tripod.
As an improvement, the steel wire rope is connected with the connecting seat through a bolt buckle.
As an improvement, the side surface of the ship body is provided with a barrier strip for preventing the platform from descending.
As an improvement, three steel wire ropes which are arranged in parallel are arranged in total and respectively correspond to the three groups of pulley mechanisms.
As an improvement, a guide pulley is arranged between the first steering pulley and the fourth fixed pulley; in the first pulley block corresponding to one side of the lifting platform, the third fixed pulley and the first diverting pulley are at the same height; and in the first pulley block corresponding to the other side of the lifting platform, the first turning pulley is higher than the third fixed pulley, and an eighth fixed pulley is arranged between the first turning pulley and the third fixed pulley.
As an improvement, the compensation energy accumulator group comprises three energy accumulators, the oil supply end of each energy accumulator is connected with an oil collecting pipe through a first electromagnetic valve, and the oil collecting pipe is connected with the compensation oil cylinder through a second electromagnetic valve; the gas storage bottle group comprises three gas storage bottles, and the output end of each gas storage bottle is connected with the gas inlet end of the compensation energy accumulator group through a gas charging and discharging controller.
As an improvement, two oil cylinder lock pins are respectively arranged on the two sides and the front side of the platform.
The working method of the lifting platform comprises the following steps:
when the platform rises: the piston rod of the control oil cylinder retracts, the piston rod of the control oil cylinder pulls the steel wire rope through the movable pulley trolley, and the energy provided by the compensation energy accumulator group balances the dead weight of the lifting platform through the compensation oil cylinder; two ends of the steel wire rope are guided by the second pulley block and the second pulley blocks on two sides to vertically lift the platform upwards; when the platform rises to be horizontal to a deck of the ship body, the oil cylinder is controlled to stop, and an oil cylinder lock pin on the platform acts and is inserted into a lock pin hole on the ship body; transporting goods on a deck of the ship body to the platform;
when the platform descends: the piston rod of the control oil cylinder extends and drives the movable pulley trolley, the movable pulley trolley drives the piston rod of the compensation oil cylinder to return oil of the compensation oil cylinder to the compensation energy accumulator group, and the lifting platform descends by means of self gravity.
Compared with the prior art, the invention has the following beneficial effects:
1. the platform is combined with the ship body, so that the platform can move up and down on the side surface of the ship body, and the airplane or goods on the deck of the ship body can be lifted and transferred
2. The platform has reasonable structure and can stably lift and descend on the side surface of the ship body;
3. the self-balancing mechanism is used for balancing weight with the lifting platform to offset part of the weight of the lifting platform, so that the load of the control oil cylinder is reduced, and the smaller the control oil cylinder is, the faster the reaction speed is, and the higher the lifting speed of the lifting platform is;
4. the control oil cylinder acts on the movable pulley trolley, the movable pulley trolley pulls the steel wire rope, two ends of the steel wire rope are connected with two ends of the lifting platform through the pulley block, and the two ends of the steel wire rope can synchronously ascend by controlling the telescopic motion of the oil cylinder, so that the lifting platform is stably lifted;
5. the two sides of the lifting platform are respectively provided with an oil cylinder lock pin, when the lifting platform stops at one side of a deck of the ship body, the oil cylinder lock pin extends into a lock pin hole of the ship body, and the weight of the whole lifting platform is completely born by the oil cylinder lock pin, so that the safety of the lifting platform during the navigation of the ship is improved; when the height of the lifting platform reaches the height of a ship deck, the oil cylinder lock pin is matched with the lock pin hole in the ship body, so that the height difference between the lifting platform and the ship deck is not more than 10mm, and an airplane can conveniently enter the lifting platform; the steel wire ropes for lifting the lifting platform adopt a plurality of steel wire ropes, wherein when one steel wire rope is disconnected, the other steel wire ropes can continuously lift the lifting platform safely.
Drawings
Fig. 1 is a top view of a lift platform.
Fig. 2 is a side view of the lift platform raised to the lowermost position.
Fig. 3 is a front view of the elevating platform raised to the lowest position.
Fig. 4 is a side view of the lift platform raised to the uppermost position.
Fig. 5 is a front view of the elevating platform raised to the uppermost position.
Fig. 6 is a schematic view of the engagement of the lifting platform with the hull.
Fig. 7 is an enlarged view of fig. 6 at a.
FIG. 8 is a cross-sectional view of the cylinder lock pin.
Fig. 9 shows a first pulley block on one side of the lifting platform.
Fig. 10 shows the first pulley block on the other side of the lifting platform.
Fig. 11 is a schematic view of the second pulley block and the movable pulley block.
FIG. 12 is a schematic diagram of the matching of the oil cylinder, the movable pulley trolley and the guide rail bracket.
Fig. 13 is a hydraulic circuit diagram of the driving device.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the side-suspension type single-hanging-point high-speed lifting platform comprises a platform 3 arranged on one side of a ship body 4, a driving device 6 for driving the platform 3 to lift and a platform protection device. The edge of the deck 1 of the ship body 4 protrudes out of the ship body 4 to form a flange structure, the edge of the deck 1 is provided with a notch groove 12 for the platform 3 to stop, when the platform 3 rises along the side surface of the ship body 4 and stops at the notch groove 12, the top surface of the platform 3 is flush with the deck 1, and the airplane 2 or goods can be conveniently transferred onto the platform 3.
As shown in fig. 6, a base 5 is provided at the bottom of one side of the platform 3 close to the hull 4, the base 5 supports the whole platform 3, and two ends of the base 5 extend out of two sides of the platform 3 and form a connecting seat 51. The top surface of the base 5 comprises an upper plane 52, a lower plane 54 and a middle inclined plane 53, wherein the upper plane 52 is connected with the lower plane 54 through the middle inclined plane 53; the platform 3 comprises a fixed part and an extension part, the top surface of the fixed part is flush with the top surface of the extension part, the shape of the bottom surface of the fixed part is matched with the shape of the top surface of the base 5, and the extension part is in a right trapezoid shape; the base 5 of this structure can provide sufficient bearing power to platform 3, makes platform 3 more steady when going up and down, and platform 3 makes whole lift platform's focus lean on forward with the combination of base 5 to make lift platform 3's lift fulcrum lean on forward, so that can stretch out wire rope 8 from deck 1 edge and act on base 5. The extension part of the platform 3 is provided with lightening holes, so that the weight of the platform 3 is lightened. In order to make the platform 3 stop stably at the highest point and the lowest point, a plurality of oil cylinder lock pins and lock holes are matched on the ship body 4 or the platform 3, so that the safety of the lifting platform 3 during the navigation of the ship is improved.
As shown in fig. 7, a channel for the platform 3 to move up and down is formed at the side of the hull 4 corresponding to the platform 3, the notch groove 12 is located at the top of the channel, a barrier 9 fixed on the side of the hull 4 is arranged at the bottom of the channel, and the barrier 9 can prevent the lifting platform from further descending and can serve as a certain limit. Guide rails 15 are arranged on two sides of the channel, two guide wheel sets 14 which are arranged up and down and matched with the guide rails 15 are arranged on the connecting seat 51, each guide wheel set 14 comprises a tripod 141 and two guide wheels 142 pivoted on the tripod 141, and one corner of the tripod 141 is fixed on the connecting seat 51; at least one side of the guide rail 15 is provided with a guide groove 151, and the guide wheel 142 of the guide wheel set 14 is arranged in the guide groove 151, so that the guide wheel limits the travel in the guide groove, the lifting stability of the lifting platform is improved, and the lifting platform can be prevented from leaving the side surface of the ship body 4 outwards. A storage space 10 is arranged in the ship body 4, an opening 7 communicated with the storage space 10 in the ship body 4 is arranged on the channel of the side face of the ship body 4, when the lifting platform descends to the lowest position, the platform 3 is in butt joint with the opening 7, and the airplane 2 or goods can enter the storage space 10 in the ship body 4 through the opening 7.
As shown in fig. 9 to 13, the driving device 6 is disposed in the hull 4, and includes a self-weight balancing mechanism for balancing the weight of the lifting platform 3, a lifting mechanism for lifting the lifting platform 3, a rail frame 64, a movable pulley carriage 63 traveling on the rail frame 64, a wire rope 8, and a pulley mechanism for guiding the wire rope 8.
As shown in fig. 13, the deadweight balancing mechanism includes a compensation cylinder 65, a compensation accumulator group, and a gas storage cylinder group. The gas storage cylinder group comprises three gas storage cylinders, the output end of each gas storage cylinder is connected with the gas inlet end of the compensation energy accumulator group through a gas charging and discharging controller, and gas in the gas storage cylinders can enter the compensation energy accumulators through the middle of the gas storage cylinders and is pressed out to enter the compensation oil cylinders 65. The compensation energy accumulator group is connected with the compensation oil cylinder 65, the compensation energy accumulator group comprises three energy accumulators, the oil supply end of each energy accumulator is connected with an oil collecting pipe through a first electromagnetic valve, and the oil collecting pipe is connected with the compensation oil cylinder 65 through a second electromagnetic valve; the control room can control the charging and discharging controller and the electromagnetic valve, so that oil of the compensation energy accumulator enters the compensation oil cylinder 65, and a piston rod of the compensation oil cylinder acts on the movable pulley trolley 63; the dead weight of the balanced lift platform 3 of the energy that the compensation accumulator group provided passes through compensation cylinder 65, and the principle is similar to the elevator balancing weight, for example: the self weight of the lifting platform 3 is 110t, the balance of the compensation energy accumulator group is 90t, and the rest is 20t and 30t of working load. The load of 50t is the load that lift platform 3 goes up and down at every turn, reduces the lift process extra load through dead weight balance principle, and the fast speed is gone up and down and is realized more easily, and the control progress is higher, and is more reliable. When the lifting platform 3 descends, the oil of the compensation oil cylinder 65 returns to the compensation energy accumulator group, the gravitational potential energy is converted into hydraulic energy to be stored in the compensation energy accumulator group, the energy recovery is completed, and for next lifting and energy storage, the whole system adopts the energy recovery principle, so that the power of the whole system is greatly reduced, and the operation preparation time of the lifting platform 3 is shortened.
As shown in fig. 12, the lifting mechanism includes two control cylinders 66 and an oil pump, a piston rod of the control cylinder 66 acts on the movable pulley trolley 63, and the oil pump controls the piston rod of the control cylinder 66 to extend and retract. The two control oil cylinders 66 are respectively arranged on two sides of the compensation oil cylinder 65 and form an oil pump set with the compensation oil cylinder 65, the oil pump set is a whole, two sides of the oil pump set are hinged on the guide rail frame 64 through the hinge seats 67, the movable pulley trolley 63 can move up and down in the process of pulling the steel wire rope 8, the hinged oil cylinder set provides a necessary moving space, and the steel wire rope 8 is prevented from being blocked. The movable pulley trolley 63 comprises a frame 631 and a first movable pulley 6321 and a second movable pulley 6322 which are pivoted on the frame 631, the first movable pulley 6321 and the second movable pulley 6322 are arranged side by side to form a movable pulley block 632, horizontal guide wheels and vertical guide wheels are arranged on two sides of the frame 631, and the guide wheels are matched with guide rails on the guide rail frame 64 to ensure that the movable pulley trolley 63 travels along the guide rail direction.
As shown in fig. 9 to 11, the pulley mechanism includes two sets of first pulley blocks 5 for guiding two ends of the wire rope 8 to be connected to the lifting platform 3 and second pulley blocks 6 for guiding the wire rope 8 to be connected to the movable sheave trolley 63. In this embodiment, three parallel steel wire ropes 8 are provided, and correspond to the three sets of pulley mechanisms respectively. The end part of the steel wire rope 8 is connected with the lifting platform 3 through a bolt buckle. The first pulley block 61 comprises a first fixed pulley 611, a second fixed pulley 612 at the same height as the first fixed pulley 611, a third fixed pulley 613 arranged below the second fixed pulley 612, and a first diverting pulley 614; as shown in fig. 3, in the first pulley block 61 corresponding to one side of the lifting platform 3, the third fixed pulley 613 and the first diverting pulley 614 are at the same height; one end of the steel wire rope 8 connected with the lifting platform 3 is led out upwards to a first fixed pulley 611, then is turned to 90 degrees and led to a second fixed pulley 612 horizontally, then is led to a third fixed pulley 613 vertically downwards, then is turned to 90 degrees and led to a first turning pulley 614 horizontally, and then is turned to 90 degrees and led to a second pulley block 62; as shown in fig. 4, in the first pulley block 61 corresponding to the other side of the lifting platform 3, the first diverting pulley 614 is higher than the third fixed pulley 613, and an eighth fixed pulley 615 is arranged between the first diverting pulley 614 and the third fixed pulley 613; the wire rope 8 led out from the second pulley block 62 enters the first diverting pulley 614, then turns 90 ° horizontally to the eighth fixed pulley 615, then turns 90 ° downwards vertically to the third fixed pulley 613, then turns 90 ° upwards vertically to the second fixed pulley 612, then turns 90 ° horizontally to the first fixed pulley 611, then turns 90 ° downwards to the other end of the lifting platform 3. As shown in fig. 5, the second pulley block 62 includes a fourth fixed pulley 622, a fifth fixed pulley 623, a sixth fixed pulley 624 and a seventh fixed pulley 625, the fourth fixed pulley 622, the fifth fixed pulley 623 and the sixth fixed pulley 624 are vertically arranged up and down and form a fixed pulley block, and the seventh fixed pulley 625 is disposed above the fixed pulley block; a guide pulley 621 is provided between the first diverting pulley 614 and the fourth fixed pulley 622. One end of a steel wire rope 8 is connected with one end of the lifting platform 3, and the other end of the steel wire rope 8 passes through the first pulley block 61, the guide pulley, the fourth fixed pulley 622, the first movable pulley 6322, the fifth fixed pulley 623, the second movable pulley 6321, the sixth fixed pulley 624, the seventh fixed pulley 625 and the second pulley block 62 in sequence and then is connected with the other side of the lifting platform 3; as shown in fig. 7, the end of the steel cable 8 is connected to the connecting seat of the lifting platform through a latch 13.
As shown in fig. 13, the self-balancing mechanism is used for balancing weight with the lifting platform 3 to offset a part of the weight of the lifting platform 3, so as to reduce the load of the control cylinder 66, and the smaller the control cylinder 66, the faster the response speed is, and the faster the lifting platform 3 can be lifted; the piston rod of the control oil cylinder 66 can drive the movable pulley trolley 63 to walk back and forth on the guide rail frame 64, and the steel wire rope 8 penetrates through the movable pulley trolley 63, so that the steel wire rope 8 can be pulled by the displacement of the movable pulley trolley 63, the two ends of the steel wire rope 8 are lifted, and the lifting platform 3 is lifted; when the lifting platform 3 descends, the piston rod of the control oil cylinder 66 extends and drives the movable pulley trolley 63, the movable pulley trolley 63 drives the piston rod of the compensation oil cylinder 65 to return the oil of the compensation oil cylinder 65 to the compensation energy accumulator group, and the lifting platform 3 descends by means of self gravity.
As shown in fig. 2 and 6, the protection device comprises a platform locking mechanism and a platform lifting reinforcing mechanism; the platform locking mechanism comprises an oil cylinder lock pin 31 arranged in the platform 3 and a lock pin hole 11 which is arranged on the ship body 4 and matched with the oil cylinder lock pin 31; in this embodiment, two oil cylinder lock pins 31 are respectively arranged on two sides and the front side of the platform 3; the oil cylinder lock pin 31 comprises a cylinder body 311 and a lock pin 312, the lock pin 312 can extend out of the platform 3, and the inlet of the lock pin hole 11 is conical. The platform lifting reinforcing mechanism comprises more than two steel wire ropes 8, the steel wire ropes 8 are arranged in parallel in the embodiment, and each steel wire rope 8 corresponds to one group of pulley mechanisms. The two sides of the lifting platform are respectively provided with an oil cylinder lock pin 31, when the lifting platform stops at one side of a deck of the ship body 4, the oil cylinder lock pin 31 extends into a lock pin hole 11 of the ship body 4, and at the moment, the weight of the whole lifting platform is completely born by the oil cylinder lock pin 31, so that the safety of the lifting platform during the navigation of the ship is improved; the oil cylinder lock pin 31 is arranged on the front side of the lifting platform, and when the height of the lifting platform reaches the height of a ship deck, the oil cylinder lock pin 31 is matched with the lock pin hole 11 in the ship body 4, so that the height difference between the lifting platform and the ship body 4 is not more than 10mm, and the airplane 2 can conveniently enter the lifting platform; the steel wire ropes 8 for lifting the lifting platform adopt a plurality of steel wire ropes 8, wherein when one steel wire rope 8 is disconnected, the other steel wire ropes 8 can continuously lift the lifting platform safely.
The working method of the lifting platform comprises the following steps:
when the platform rises: the piston rod of the control oil cylinder retracts, the piston rod of the control oil cylinder pulls the steel wire rope through the movable pulley trolley, and the energy provided by the compensation energy accumulator group balances the dead weight of the lifting platform through the compensation oil cylinder; two ends of the steel wire rope are guided by the second pulley block and the second pulley blocks on two sides to vertically lift the platform upwards; when the platform rises to be horizontal to a deck of the ship body, the oil cylinder is controlled to stop, and an oil cylinder lock pin on the platform acts and is inserted into a lock pin hole on the ship body; transporting goods on a deck of the ship body to the platform;
when the platform descends: the piston rod of the control oil cylinder extends and drives the movable pulley trolley, the movable pulley trolley drives the piston rod of the compensation oil cylinder to return oil of the compensation oil cylinder to the compensation energy accumulator group, and the lifting platform descends by means of self gravity.
Claims (10)
1. The utility model provides a high-speed lift platform of single hoisting point of side suspension formula which characterized in that: comprises a platform arranged on one side of a ship body, a driving device for driving the platform to ascend and descend and a platform protection device;
the bottom of the platform is provided with a base, two ends of the base extend out of two sides of the platform to form a connecting seat, the driving device acts on the connecting seat, a channel for the platform to move up and down is formed on the side surface of the ship body corresponding to the platform, guide rails are arranged on two sides of the channel, the connecting seat is provided with a guide wheel group matched with the guide rails, at least one side of each guide rail is provided with a guide groove, and each guide wheel group comprises a guide wheel arranged in the guide groove; a notch groove for the platform to stop is formed in the edge of a deck of the ship body, and an opening communicated with the storage space in the ship body is formed in the channel on the side face of the ship body;
the driving device comprises a self-weight balancing mechanism for balancing the weight of the lifting platform, a lifting mechanism for lifting the lifting platform, a guide rail frame, a movable pulley trolley walking on the guide rail frame, a steel wire rope and a pulley mechanism for guiding the steel wire rope; the gravity balance mechanism comprises a compensation oil cylinder, a compensation energy accumulator group and an air accumulator group, the air accumulator group is connected with the compensation energy accumulator group, the compensation energy accumulator group is connected with the compensation oil cylinder, a piston rod of the compensation oil cylinder acts on the movable pulley trolley, the lifting mechanism comprises two control oil cylinders and an oil pump, the piston rod of each control oil cylinder acts on the movable pulley trolley, the oil pump controls the piston rod of each control oil cylinder to stretch, the two control oil cylinders are respectively arranged on two sides of the compensation oil cylinder and form an oil pump group with the compensation oil cylinder, and the oil pump group is hinged to the guide rail frame; the movable pulley trolley comprises a frame, and a first movable pulley and a second movable pulley which are pivoted on the frame, wherein the first movable pulley and the second movable pulley are arranged side by side to form a movable pulley block, guide wheels are arranged on two sides of the frame, and the guide wheels are matched with guide rails on the guide rail frame; the pulley mechanism comprises two groups of first pulley blocks which respectively guide two ends of a steel wire rope to be connected with the lifting platform and a second pulley block which guides the steel wire rope to be connected with the movable pulley trolley, the first pulley block comprises a first fixed pulley, a second fixed pulley which is at the same height with the first fixed pulley, a third fixed pulley and a first steering pulley which are arranged below the second fixed pulley, the second pulley block comprises a fourth fixed pulley, a fifth fixed pulley, a sixth fixed pulley and a seventh fixed pulley, the fourth fixed pulley, the fifth fixed pulley and the sixth fixed pulley are vertically arranged up and down and form the fixed pulley block, and the seventh fixed pulley is arranged above the fixed pulley block; one end of the steel wire rope is connected with one end of the lifting platform, and the other end of the steel wire rope sequentially passes through the first pulley block, the fourth fixed pulley, the first movable pulley, the fifth fixed pulley, the second movable pulley, the sixth fixed pulley, the seventh fixed pulley and the second pulley block and then is connected with the other side of the lifting platform;
the platform protection device comprises a platform locking mechanism and a platform lifting reinforcing mechanism, the platform locking mechanism comprises an oil cylinder lock pin arranged in the platform and a lock pin hole which is arranged on the ship body and matched with the oil cylinder lock pin, the platform lifting reinforcing mechanism comprises more than two steel wire ropes, and each steel wire rope corresponds to one group of pulley mechanisms.
2. The side-hung single-lifting-point high-speed lifting platform according to claim 1, characterized in that: the top surface of the base comprises an upper plane, a lower plane and a middle inclined plane, and the upper plane is connected with the lower plane through the middle inclined plane; the platform includes fixed part and extension, the top surface of fixed part and the top surface parallel and level of extension, the bottom surface shape of fixed part and the top surface shape cooperation of base, the extension is right trapezoid.
3. The side-hung single-lifting-point high-speed lifting platform according to claim 1, characterized in that: the connecting base is provided with two guide wheel sets which are arranged up and down, and each guide wheel set comprises a tripod and two guide wheels which are pivoted on the tripod.
4. The side-hung single-lifting-point high-speed lifting platform according to claim 1, characterized in that: the steel wire rope is connected with the connecting seat through a bolt buckle.
5. The side-hung single-lifting-point high-speed lifting platform according to claim 1, characterized in that: and barrier strips for preventing the platform from descending are arranged on the side surfaces of the ship body.
6. The side-hung single-lifting-point high-speed lifting platform according to claim 1, characterized in that: the three parallel steel wire ropes are arranged in total and respectively correspond to the three groups of pulley mechanisms.
7. The side-hung single-lifting-point high-speed lifting platform according to claim 1, characterized in that: a guide pulley is arranged between the first steering pulley and the fourth fixed pulley; in the first pulley block corresponding to one side of the lifting platform, the third fixed pulley and the first diverting pulley are at the same height; and in the first pulley block corresponding to the other side of the lifting platform, the first turning pulley is higher than the third fixed pulley, and an eighth fixed pulley is arranged between the first turning pulley and the third fixed pulley.
8. The side-hung single-lifting-point high-speed lifting platform according to claim 1, characterized in that: the compensation energy accumulator group comprises three energy accumulators, the oil supply end of each energy accumulator is connected with an oil collecting pipe through a first electromagnetic valve, and the oil collecting pipe is connected with the compensation oil cylinder through a second electromagnetic valve; the gas storage bottle group comprises three gas storage bottles, and the output end of each gas storage bottle is connected with the gas inlet end of the compensation energy accumulator group through a gas charging and discharging controller.
9. The side-hung single-lifting-point high-speed lifting platform according to claim 1, characterized in that: two sides and the front side of the platform are respectively provided with two oil cylinder lock pins.
10. The working method of the side-hung single-hanging-point high-speed lifting platform as claimed in claim 1, wherein when the platform is lifted: the piston rod of the control oil cylinder retracts, the piston rod of the control oil cylinder pulls the steel wire rope through the movable pulley trolley, and the energy provided by the compensation energy accumulator group balances the dead weight of the lifting platform through the compensation oil cylinder; two ends of the steel wire rope are guided by the second pulley block and the second pulley blocks on two sides to vertically lift the platform upwards; when the platform rises to be horizontal to a deck of the ship body, the oil cylinder is controlled to stop, and an oil cylinder lock pin on the platform acts and is inserted into a lock pin hole on the ship body; transporting goods on a deck of the ship body to the platform;
when the platform descends: the piston rod of the control oil cylinder extends and drives the movable pulley trolley, the movable pulley trolley drives the piston rod of the compensation oil cylinder to return oil of the compensation oil cylinder to the compensation energy accumulator group, and the lifting platform descends by means of self gravity.
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| CN114179973A (en) * | 2021-11-10 | 2022-03-15 | 中船华南船舶机械有限公司 | Anti-falling mechanism of elevator |
| CN114084291B (en) * | 2021-11-10 | 2022-09-27 | 中船华南船舶机械有限公司 | Control method of inboard elevator |
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| CN101954958B (en) * | 2009-07-20 | 2012-12-26 | 江苏赛富隆重工有限公司 | Lifting device for cement barge loading and unloading ship |
| CN106114766A (en) * | 2016-08-19 | 2016-11-16 | 广船国际有限公司 | A kind of cargo instrument of ro-ro passenger ship |
| CN108438150B (en) * | 2017-11-30 | 2020-04-14 | 中船华南船舶机械有限公司 | Working method of position compensation telescopic boarding trestle |
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