CN211711829U - Driving device of high-speed lifting platform - Google Patents
Driving device of high-speed lifting platform Download PDFInfo
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- CN211711829U CN211711829U CN201921780780.0U CN201921780780U CN211711829U CN 211711829 U CN211711829 U CN 211711829U CN 201921780780 U CN201921780780 U CN 201921780780U CN 211711829 U CN211711829 U CN 211711829U
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- pulley
- fixed pulley
- lifting platform
- steel wire
- wire rope
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Abstract
A driving device of a high-speed lifting platform comprises a self-weight balance mechanism for balancing 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 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 the 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 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 ascend synchronously through the telescopic motion of the control oil cylinder, so that the lifting platform is lifted stably.
Description
Technical Field
The utility model relates to a lift platform especially uses the drive arrangement of high-speed lift platform on boats and ships.
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 lifting platform for airplane parking and transferring is rarely found on a large ship, in the existing large ship with airplane parking, the airplane is usually parked on a clamping plate of a ship body, the clamping plate has limited area and large exposed risk, so the airplane needs to be stored in the ship body, at the moment, a platform capable of lifting on the ship body needs to be developed, the lifting platform is required to move up and down in the vertical direction, a steel wire rope is generally adopted as a drive, in addition, the lifting platform on the ship needs to transfer large goods such as the airplane and the like, the load capacity is large, and therefore a more reliable drive device is needed to ensure the stable operation of the lifting platform.
Disclosure of Invention
The utility model aims to solve the technical problem that a drive arrangement of high-speed lift platform is provided, make lift platform's loading capacity big, and move more steadily.
In order to solve the technical problem, the technical scheme of the utility model is that: a driving device of a high-speed lifting platform comprises a self-weight balance mechanism for balancing 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 a 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 rods of the control oil cylinders act on the movable pulley trolley, the oil pump controls the piston rods of the control oil cylinders 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 penetrates 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 in sequence and then is connected with the other side of the lifting platform. The self-balancing mechanism of the utility model is used for balancing weight with the lifting platform to offset part of the weight of the lifting platform, thereby reducing the load of the control oil cylinder, and the smaller the control oil cylinder is, the faster the reaction speed is, and the lifting speed of the lifting platform can be faster; a piston rod of the control oil cylinder can drive the movable pulley trolley to walk back and forth on the guide rail frame, and the steel wire rope passes through the movable pulley trolley, so that the displacement of the movable pulley trolley can pull the steel wire rope, so that two ends of the steel wire rope rise and the lifting platform is lifted; when the lifting 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.
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 a modification, a guide pulley is arranged between the first steering pulley and the fourth fixed pulley.
As an improvement, in a first pulley block corresponding to one side of the lifting platform, a third fixed pulley and a 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 end part of the steel wire rope is connected with the lifting platform through a bolt buckle.
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.
As an improvement, the gas storage cylinder group comprises three gas storage cylinders, and 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.
Compared with the prior art, the utility model the beneficial effect who brings is:
1. the self-balancing mechanism of the utility model is used for balancing weight with the lifting platform to offset part of the weight of the lifting platform, thereby reducing the load of the control oil cylinder, and the smaller the control oil cylinder is, the faster the reaction speed is, and the lifting speed of the lifting platform can be faster;
2. 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 ascend synchronously through the telescopic motion of the control oil cylinder, so that the lifting platform is lifted stably.
Drawings
Fig. 1 is a schematic structural view of a lifting platform.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is a first pulley block at one side of the lifting platform.
Fig. 4 is a first pulley block on the other side of the lifting platform.
Fig. 5 is a schematic view of the second pulley block and the movable pulley block.
FIG. 6 is a schematic diagram of the matching of the oil cylinder, the movable pulley trolley and the guide rail frame.
Fig. 7 is a hydraulic pipeline diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A driving device of a high-speed lifting platform comprises a dead weight balance mechanism for balancing the weight of a lifting platform 3, a lifting mechanism for lifting the lifting platform 3, a guide rail frame 8, a movable pulley trolley 7 walking on the guide rail frame 8, a steel wire rope 4 and a pulley mechanism for guiding the steel wire rope 4. As shown in fig. 1, the elevating platform 3 of the present embodiment is disposed at one side of the hull 1, the driving device is disposed in the hull 1, and the elevating platform 3 can transfer the airplane or cargo staying on the plywood of the hull 1.
As shown in fig. 7, the dead weight balancing mechanism includes a compensation cylinder 9, 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 9. The compensation energy accumulator group is connected with the compensation oil cylinder 9 and 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 9 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 9, and a piston rod of the compensation oil cylinder acts on the movable pulley trolley 7; the dead weight of the balanced lift platform 3 of energy that the compensation accumulator group provided passes through compensation hydro-cylinder 9, and the similar elevator balancing weight of principle, 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 9 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. 6, the lifting mechanism includes two control cylinders 10 and an oil pump, a piston rod of the control cylinder 10 acts on the movable pulley cart 7, and the oil pump controls the piston rod of the control cylinder 10 to extend and retract. The two control oil cylinders 10 are respectively arranged on two sides of the compensation oil cylinder 9 and form an oil pump set with the compensation oil cylinder 9, the oil pump set is a whole, two sides of the oil pump set are hinged on the guide rail frame 8 through the hinge seats 11, the movable pulley trolley 7 can move up and down in the process of pulling the steel wire rope 4, the hinged oil cylinder set provides a necessary moving space, and the steel wire rope 4 is prevented from being blocked. The movable pulley trolley 7 comprises a frame 71, and a first movable pulley 721 and a second movable pulley 722 which are pivoted on the frame 71, wherein the first movable pulley 721 and the second movable pulley 722 are arranged side by side to form a movable pulley block 72, horizontal guide wheels and vertical guide wheels are arranged on two sides of the frame 71, and the guide wheels are matched with a guide rail on the guide rail frame 8 to ensure that the movable pulley trolley 7 travels along the direction of the guide rail.
As shown in fig. 3 to 5, the pulley mechanism includes two sets of first pulley blocks 5 for respectively guiding two ends of the steel wire rope 4 to connect with the lifting platform 3 and second pulley blocks 6 for guiding the steel wire rope 4 to connect with the movable pulley trolley 7. In this embodiment, three parallel steel wire ropes 4 are provided, and correspond to the three pulley mechanisms respectively. The end part of the steel wire rope 4 is connected with the lifting platform 3 through a bolt buckle. The first pulley block 5 comprises a first fixed pulley 51, a second fixed pulley 52 at the same height as the first fixed pulley 51, a third fixed pulley 53 arranged below the second fixed pulley 52 and a first diverting pulley 54; as shown in fig. 3, in the first pulley block 5 corresponding to one side of the lifting platform 3, the third fixed pulley 53 and the first diverting pulley 54 are at the same height; one end of the steel wire rope 4 connected with the lifting platform 3 is led out upwards to a first fixed pulley 51, then is turned to 90 degrees and led to a second fixed pulley 52 horizontally, then is led to a third fixed pulley 53 vertically downwards, then is turned to 90 degrees and led to a first turning wheel horizontally, and then is turned to 90 degrees and led to a second pulley block 6; as shown in fig. 4, in the first pulley block 5 corresponding to the other side of the lifting platform 3, the first diverting pulley 54 is higher than the third fixed pulley 53, and an eighth fixed pulley 55 is arranged between the first diverting pulley 54 and the third fixed pulley 53; the steel wire rope 4 led out from the second pulley block 6 enters a first diverting pulley 54, then turns 90 degrees to lead horizontally to an eighth fixed pulley 55, then turns 90 degrees to lead vertically downwards to a third fixed pulley 53, then turns 90 degrees to lead vertically upwards to a second fixed pulley 52, then turns 90 degrees to lead horizontally to a first fixed pulley 51, and then turns 90 degrees to lead downwards to the other end of the lifting platform 3. As shown in fig. 5, the second pulley block 6 includes a fourth fixed pulley 62, a fifth fixed pulley 63, a sixth fixed pulley 64 and a seventh fixed pulley 65, the fourth fixed pulley 62, the fifth fixed pulley 63 and the sixth fixed pulley 64 are vertically arranged up and down and form a fixed pulley block, and the seventh fixed pulley 65 is disposed above the fixed pulley block; a guide pulley 61 is provided between the first diverting pulley 54 and the fourth fixed pulley 62. One end of a steel wire rope 4 is connected with one end of the lifting platform 3, and the other end of the steel wire rope 4 passes through the first pulley block 5, the guide pulley, the fourth fixed pulley 62, the first movable pulley, the fifth fixed pulley 63, the second movable pulley, the sixth fixed pulley 64, the seventh fixed pulley 65 and the second pulley block 6 in sequence and then is connected with the other side of the lifting platform 3; as shown in fig. 2, the end of the wire rope 4 is connected to the lifting platform 3 by a latch 31.
The self-balancing mechanism of the utility model is used for balancing weight with the lifting platform 3 to offset part of the weight of the lifting platform 3, thereby reducing the load of the control oil cylinder 10, and the smaller the control oil cylinder 10 is, the faster the reaction speed is, the faster the lifting platform 3 can be lifted; the piston rod of the control oil cylinder 10 can drive the movable pulley trolley 7 to walk back and forth on the guide rail frame 8, and the steel wire rope 4 penetrates through the movable pulley trolley 7, so that the steel wire rope 4 can be pulled by the displacement of the movable pulley trolley 7, the two ends of the steel wire rope 4 are lifted, and the lifting platform 3 is lifted; when the lifting platform 3 descends, the piston rod of the control oil cylinder 10 extends and drives the movable pulley trolley 7, the movable pulley trolley 7 drives the piston rod of the compensation oil cylinder 9 to return oil of the compensation oil cylinder 9 to the compensation energy accumulator group, and the lifting platform 3 descends by means of self gravity.
Claims (7)
1. A driving device of a high-speed lifting platform comprises a self-weight balance mechanism for balancing 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 a 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 rods of the control oil cylinders act on the movable pulley trolley, the oil pump controls the piston rods of the control oil cylinders 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 penetrates 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 in sequence and then is connected with the other side of the lifting platform.
2. The driving device of a high-speed elevating platform according to claim 1, wherein: the three parallel steel wire ropes are arranged in total and respectively correspond to the three groups of pulley mechanisms.
3. The driving device of a high-speed elevating platform according to claim 1, wherein: and a guide pulley is arranged between the first steering pulley and the fourth fixed pulley.
4. The driving device of a high-speed elevating platform according to claim 1, wherein: 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.
5. The driving device of a high-speed elevating platform according to claim 1, wherein: the end part of the steel wire rope is connected with the lifting platform through a bolt buckle.
6. The driving device of a high-speed elevating platform according to claim 1, wherein: 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.
7. The driving device of a high-speed elevating platform according to claim 1, wherein: 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921780780.0U CN211711829U (en) | 2019-10-22 | 2019-10-22 | Driving device of high-speed lifting platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921780780.0U CN211711829U (en) | 2019-10-22 | 2019-10-22 | Driving device of high-speed lifting platform |
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| CN211711829U true CN211711829U (en) | 2020-10-20 |
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| CN201921780780.0U Active CN211711829U (en) | 2019-10-22 | 2019-10-22 | Driving device of high-speed lifting platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084291A (en) * | 2021-11-10 | 2022-02-25 | 中船华南船舶机械有限公司 | Control method of inboard elevator |
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2019
- 2019-10-22 CN CN201921780780.0U patent/CN211711829U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084291A (en) * | 2021-11-10 | 2022-02-25 | 中船华南船舶机械有限公司 | Control method of inboard 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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