阅读说明：本技术 升船机螺杆传动式逃生装置及其使用方法 (Screw transmission type escape device of ship lift and using method thereof ) 是由 丁波 吴德新 马仁超 廖照邦 余俊阳 王处军 于 2021-09-24 设计创作，主要内容包括：本发明涉及一种升船机螺杆传动式逃生装置及其使用方法,所述的逃生装置设置在升船机承船厢总成的端部或中部,包括逃生装置驱动系统、逃生装置钢框架、逃生梯三部分；所述的逃生装置驱动系统、逃生装置钢框架、逃生梯三部分均设置在升船机端头位置,所述的逃生装置驱动系统设置在逃生装置钢框架顶部和侧部；所述的逃生梯设置在逃生装置钢框架架体内部及升船机端头的承船厢马道之上。本发明可以通过电动驱动、备用电动驱动装置驱动、手动驱动,实现一定高度内任意位置停机和升船机塔楼逃生口对接形成逃生通道,并在停机位实现安全锁定。该形式的逃生装置运行方便,有助于提升升船机领域的设计能力,具有广阔的运用前景。(The invention relates to a screw transmission type escape device of a ship lift and a using method thereof, wherein the escape device is arranged at the end part or the middle part of a ship lift ship reception chamber assembly and comprises an escape device driving system, an escape device steel frame and an escape ladder; the escape device driving system, the escape device steel frame and the escape ladder are all arranged at the end position of the ship lift, and the escape device driving system is arranged at the top and the side part of the escape device steel frame; the escape ladder is arranged in the steel frame body of the escape device and on a ship receiving chamber horse way at the end of the ship lift. The invention can realize shutdown at any position within a certain height and butt joint of the tower escape opening of the ship lift to form an escape passage by electric drive, standby electric drive device drive and manual drive, and realize safe locking at the shutdown position. The escape device in the form is convenient to operate, contributes to improving the design capability in the field of ship lifts, and has a wide application prospect.)

1. A screw transmission type escape device of a ship lift is characterized in that the escape device is arranged at the end or the middle part of a ship lift ship reception chamber assembly (1) and comprises an escape device driving system, an escape device steel frame and an escape ladder (5);

escape device actuating system, escape device steel frame, emergency ladder triplex all set up in ship lift end position, specifically do:

the steel frame of the escape device is arranged at the end of the ship lift and is butted with an escape opening of a tower of the ship lift to form an escape passage;

the escape device driving systems are arranged at the top and the side parts of the steel frame of the escape device; the escape ladder is arranged in the steel frame body of the escape device and above a ship receiving chamber underpass (15) at the end of the ship lift.

2. The screw-driven escape device of a ship lift according to claim 1, wherein the steel frame of the escape device is a welded steel structure, and comprises a frame structure (20), a ladder (21) arranged at the front side part of the steel frame of the escape device, a ring beam, an inclined support, an escape device mounting platform arranged at the top part, and a fence (22) arranged around the escape device mounting platform; the side part of the steel frame of the escape device is also provided with a guide structure (23); the guide structure (23) is vertically arranged at the rear side part of the steel frame of the escape device.

3. The screw-driven escape device of a ship lift according to claim 2, wherein the escape device driving system comprises a motor (6), a reducer (7), a bevel gear box (8), a transmission shaft (9), a standby driving device (10) and a screw (11);

the motor (6), the speed reducer (7), the bevel gear box (8), the transmission shaft (9) and the standby driving device (10) are fixedly arranged on the escape device mounting platform;

the number of the bevel gear boxes (8) is four, the four bevel gear boxes are arranged side by side and respectively comprise a first bevel gear box (8.1), a second bevel gear box (8.2), a third bevel gear box (8.3) and a fourth bevel gear box (8.4); the first bevel gear box (8.1), the second bevel gear box (8.2), the third bevel gear box (8.3) and the fourth bevel gear box (8.4) are transversely connected in series through a transmission shaft (9);

the first bevel gear box (8.1) and the fourth bevel gear box (8.4) are respectively and vertically provided with a screw (11);

the motor (6) is connected with the second bevel gear box (8.2) through the reducer (7) and the transmission shaft (9);

the standby driving device (10) is connected with the third bevel gear box (8.3);

the screw rod (11) is sleeved with a connecting device in threaded fit with the screw rod, the connecting device is connected with one end of the escape ladder (5), and the connecting device drives one end of the escape ladder (5) to be lifted to a certain height through the rotation of the screw rod (11);

the bottom of the screw rod (11) is provided with a rotating mechanism which is fixedly arranged on the ship reception chamber underpass (15);

the rotating mechanism comprises a thrust bearing (27), an end cover (28) and a bottom cover (29); the thrust bearing (27) is fixedly connected with the screw rod (11) at the bottom of the screw rod (11); the end cover (28) and the bottom cover (29) are buckled up and down, and then a bearing space is arranged inside the end cover and the bottom cover; the thrust bearing (27) is embedded in the bearing space, and the end cover (28) is fixedly connected with the bottom cover (29) by covering the upper end cover (28).

4. The screw-driven escape device of a ship lift according to claim 3, wherein the connecting device is structured as follows: a connecting frame (12) is arranged;

the connecting frame (12) is sleeved on the screw rod (11) and is connected with the screw rod (11) in a matching way;

an internal thread matched with the screw rod (11) is arranged in the connecting frame (12);

the connecting frame (12) is movably connected with one end of the escape ladder (5); the connecting frame (12) drives one end of the escape ladder (5) to be lifted or lowered by a certain height along with the rotation of the screw rod (11).

5. The screw-driven escape device of a ship lift according to claim 3, wherein the connecting device is structured as follows: a connecting frame (12) and a nut (14) are arranged;

the connecting frame (12) is fixedly connected with the nut (14);

the internal thread of the nut (14) is matched with the external thread of the screw (11), and the nut (14) is sleeved on the screw (11) and is connected in a matching way;

the connecting frame (12) is smooth and only sleeved on the screw rod (11);

the connecting frame (12) is movably connected with one end of the escape ladder (5);

the screw rod (11) rotates, the nut (14) drives the connecting frame (12) and simultaneously drives one end of the escape ladder (5) to be lifted or lowered by a certain height.

6. The screw-driven escape device of a ship lift according to claim 3, wherein the connecting device is structured as follows: a connecting frame (12) and a nut (14) are arranged;

the connecting frame (12) is fixedly connected with the nut (14);

the internal thread of the nut (14) is matched with the external thread of the screw (11), and the nut (14) is sleeved on the screw (11) and is connected in a matching way;

the connecting frame (12) is sleeved on the screw rod (11) and is connected with the screw rod (11) in a matching way;

an internal thread matched with the screw rod (11) is arranged in the connecting frame (12);

the connecting frame (12) is movably connected with one end of the escape ladder (5);

the nut (14) and the connecting frame (12) drive one end of the escape ladder (5) to be lifted or lowered by a certain height along with the rotation of the screw rod (11).

7. A screw-driven escape device according to claim 4, 5 or 6, wherein the escape device drive system comprises a first guide wheel (13); the first guide wheel (13) is fixedly arranged on one side of the connecting frame (12) and is arranged towards the guide structure (23); the first guide wheel (13) is connected with the guide structure (23) in a rolling way.

8. The screw-driven escape device of a ship lift according to claim 1, further comprising a second guide wheel (16) disposed at a lower portion of one end of the escape ladder (5); a track (17) is arranged on the ship reception compartment horse way (15); the second guide wheel (16) is in rolling connection with the track (17) on the track (17); the escape ladder (5) comprises a walkway (18) and railings (19) arranged at two sides of the walkway (18).

9. The ship lift screw driven escape device of claim 2, wherein the escape device further comprises a service device; the maintenance device comprises a maintenance crane (24) arranged on one side of the escape device mounting platform, a maintenance lifting lug (25) arranged at any position between the side wall of the middle part of the escape ladder (5) and the side wall of the end far away from the steel frame of the escape device, a maintenance motor and a maintenance steel wire rope (26); one end of the overhaul steel wire rope (26) is fixedly arranged on the overhaul motor, and the overhaul steel wire rope (26) sequentially penetrates through the overhaul crane (24) and the overhaul lifting lug (25) and is fixedly connected with the overhaul lifting lug (25); the maintenance motor rolls or releases the maintenance steel wire rope (26) to drive one end of the escape ladder (5) far away from the steel frame of the escape device to rise or fall.

10. The use method of the screw-driven escape device of a ship lift according to any of claims 1 to 9, comprising the following states:

1) when the ship lift has an accident, an operator operates the escape device, and the motor (6) rotates, the speed reducer (7) rotates, the bevel gear box (8) rotates under the drive of station power of the ship lift, so that the screw rod (11) is driven to rotate; because the connecting device is connected to the escape ladder (5), when the screw (11) rotates, the connecting device drives one end of the escape ladder (5) to move up and down along the axial direction of the screw (11), and meanwhile, the second guide wheel (16) arranged at the other end of the escape ladder (5) rolls left and right along the track (17), so that the requirement of the escape ladder (5) on adjusting the escape height is met;

2) when the ship lift has an accident condition and the service power fails, the standby driving device (10) is put into use, and the standby driving device (10) has the functions of a diesel generator and a motor; the standby driving device (10) is connected with the bevel gear box (8) to be put into use and rotate, the bevel gear box (8) rotates, and the transmission shaft (9) rotates, so that the screw (11) is driven to rotate; because the connecting device is connected to the escape ladder (5), when the screw (11) rotates, the connecting device drives one end of the escape ladder (5) to move up and down along the axial direction of the screw (11), and meanwhile, the second guide wheel (16) arranged at the other end of the escape ladder (5) rolls left and right along the track (17), so that the requirement of the escape ladder (5) on adjusting the escape height is met;

3) when the ship lift normally works, in order to facilitate operators to pass through the ship reception chamber fairway (15), the escape device driving system (3) operates the escape ladder (5) to move to be horizontally placed on the ground of the ship reception chamber fairway (15);

4) when the ship lift is in an emergency state, the escape device driving system (3) operates the escape ladder (5) to move to a certain angle so that people can escape;

5) when the ship lift needs to be overhauled, an overhauling crane (24) is manually operated, an overhauling steel wire rope (26) of the overhauling crane (24) is connected to an overhauling lifting lug (25) of the escape ladder (5), and the escape ladder (5) is pulled to be in a horizontal suspended state; so that the service equipment can pass through the carriageway (15).

Technical Field

The invention belongs to the technical field of escape device structures, and particularly relates to a novel device structure for escape of a ship lift device in an accident state in the field of river navigation and a use method thereof.

Background

River navigation equipment comprises a ship lift and a ship lock, and both are navigation equipment (buildings) used for overcoming the concentrated fall on a channel so that ships can smoothly pass through. Compared with a ship lock, the ship lift basically consumes no water during operation, the lifting speed of the ship lift is far higher than the water filling speed of a lock chamber of the ship lock, the time required by the ship to pass through the ship lift is shorter than the time required by the ship to pass through the ship lock, the manufacturing cost of the ship lift in a high-water-head navigation building (the water head is more than 70 m) is generally lower, electromechanical equipment is an important part for ensuring the safe operation of the ship lift, and the building and installation requirements of the ship lift have higher design and process levels. As the ship lift is widely applied to travel passenger transportation, higher requirements are put forward on the safety of the ship lift, so that the device suitable for escaping when the ship lift is in an emergency is provided, and the device has the characteristics of simple structure, safety, reliability and convenience in operation.

Disclosure of Invention

The invention aims to solve the defects of the problems and provides a screw transmission type escape device of a ship lift and a using method thereof.

The invention is realized by adopting the following technical scheme.

The invention relates to a screw transmission type escape device of a ship lift, which is arranged at the end part or the middle part of a ship lift ship reception chamber assembly 1 and comprises an escape device driving system, an escape device steel frame and an escape ladder 5;

escape device actuating system, escape device steel frame, emergency ladder triplex all set up in ship lift end position, specifically do:

the steel frame of the escape device is arranged at the end of the ship lift and is butted with an escape opening of a tower of the ship lift to form an escape passage;

the escape device driving systems are arranged at the top and the side parts of the steel frame of the escape device; the escape ladder is arranged in the steel frame body of the escape device and above a ship receiving chamber underpass 15 at the end of the ship lift.

The steel frame of the escape device is a welded steel structure and comprises a frame structure 20, a ladder 21 arranged on the front side part of the steel frame of the escape device, a ring beam, an inclined support, an escape device mounting platform arranged on the top part and a fence 22 arranged on the periphery of the escape device mounting platform; the side part of the steel frame of the escape device is also provided with a guide structure 23; the guide structure 23 is vertically arranged at the rear side part of the steel frame of the escape device.

The escape device driving system comprises a motor 6, a speed reducer 7, a bevel gear box 8, a transmission shaft 9, a standby driving device 10 and a screw rod 11;

the motor 6, the speed reducer 7, the bevel gear box 8, the transmission shaft 9 and the standby driving device 10 are fixedly arranged on the escape device mounting platform;

the number of the bevel gear boxes 8 is four, and the four bevel gear boxes are arranged side by side and respectively comprise a first bevel gear box 8.1, a second bevel gear box 8.2, a third bevel gear box 8.3 and a fourth bevel gear box 8.4; the first bevel gear box 8.1, the second bevel gear box 8.2, the third bevel gear box 8.3 and the fourth bevel gear box 8.4 are transversely connected in series through a transmission shaft 9;

the first bevel gear box 8.1 and the fourth bevel gear box 8.4 are respectively and vertically provided with a screw rod 11;

the motor 6 is connected with a second bevel gear box 8.2 through a speed reducer 7 and a transmission shaft 9;

the standby driving device 10 is connected with the third bevel gear box 8.3;

the screw 11 is sleeved with a connecting device in threaded fit with the screw, the connecting device is connected with one end of the escape ladder 5, and the connecting device drives one end of the escape ladder 5 to be lifted to a certain height through the rotation of the screw 11;

the bottom of the screw rod 11 is provided with a rotating mechanism which is fixedly arranged on the ship reception chamber underpass 15;

the rotating mechanism comprises a thrust bearing 27, an end cover 28 and a bottom cover 29; the thrust bearing 27 is fixedly connected with the screw rod 11 at the bottom of the screw rod 11; the end cover 28 and the bottom cover 29 are buckled up and down, and then a bearing space is arranged inside the end cover and the bottom cover; the thrust bearing 27 is embedded in the bearing space, and the end cover 28 and the bottom cover 29 are fixedly connected through the upper end cover 28.

The connecting device structure of the invention is as follows: a connecting frame 12 is arranged; the connecting frame 12 is sleeved on the screw rod 11 and is connected with the screw rod 11 in a matching way; an internal thread matched with the screw rod 11 is arranged in the connecting frame 12; the connecting frame 12 is movably connected with one end of the escape ladder 5; the connecting frame 12 drives one end of the escape ladder 5 to be lifted or lowered by a certain height along with the rotation of the screw 11.

In a second aspect, the present invention provides a connecting device structure comprising: a connecting frame 12 and a nut 14 are arranged; the connecting frame 12 is fixedly connected with the nut 14; the internal thread of the nut 14 is matched with the external thread of the screw rod 11, and the nut 14 is sleeved on the screw rod 11 and is connected in a matching way; the connecting frame 12 is smooth and only sleeved on the screw rod 11;

the connecting frame 12 is movably connected with one end of the escape ladder 5; the nut 14 drives the connecting frame 12 and simultaneously drives one end of the escape ladder 5 to be raised or lowered by a certain height along with the rotation of the screw 11.

In a third aspect, the present invention provides a connecting device, comprising: a connecting frame 12 and a nut 14 are arranged; the connecting frame 12 is fixedly connected with the nut 14; the internal thread of the nut 14 is matched with the external thread of the screw rod 11, and the nut 14 is sleeved on the screw rod 11 and is connected in a matching way; the connecting frame 12 is sleeved on the screw rod 11 and is connected with the screw rod 11 in a matching way; an internal thread matched with the screw rod 11 is arranged in the connecting frame 12; the connecting frame 12 is movably connected with one end of the escape ladder 5; as the screw 11 rotates, the nut 14 and the connecting frame 12 together drive one end of the escape ladder 5 to be raised or lowered by a certain height.

The escape device driving system of the present invention includes a first guide wheel 13; the first guide wheel 13 is fixedly arranged on one side of the connecting frame 12 and is arranged towards the guide structure 23; the first guide wheel 13 is connected to the guide structure 23 in a rolling manner.

The escape device further comprises a second guide wheel 16 arranged at the lower part of one end of the escape ladder 5; a track 17 is arranged on the ship reception compartment underpass 15; the second guide wheel 16 is in rolling connection with the track 17 on the track 17; the escape ladder 5 comprises a walkway 18, and balustrades 19 arranged at both sides of the walkway 18.

The escape device also comprises a maintenance device; the maintenance device comprises a maintenance hanger 24 arranged on one side of the escape device mounting platform, a maintenance lifting lug 25 arranged at any position between the side wall of the middle part of the escape ladder 5 and the side wall of the end far away from the steel frame of the escape device, a maintenance motor and a maintenance steel wire rope 26; one end of the overhaul steel wire rope 26 is fixedly arranged on the overhaul motor, and the overhaul steel wire rope 26 sequentially passes through the overhaul lifting lug 24 and the overhaul lifting lug 25 and then is fixedly connected with the overhaul lifting lug 25; the maintenance wire rope 26 is rolled or released by the maintenance motor to drive one end of the escape ladder 5 far away from the steel frame of the escape device to rise or fall.

The use method of the screw transmission type escape device of the ship lift comprises the following steps:

1) when the ship lift has an accident, an operator operates the escape device, and the ship lift is driven by the service electricity, the motor 6 rotates, the speed reducer 7 rotates, the bevel gear box 8 rotates, and the screw rod 11 is driven to rotate; because the connecting device is connected to the escape ladder 5, when the screw rod 11 rotates, the connecting device drives one end of the escape ladder 5 to move up and down along the axial direction of the screw rod 11, and meanwhile, the second guide wheel 16 arranged at the other end of the escape ladder 5 rolls left and right along the track 17, so that the requirement of the escape ladder 5 on adjusting the escape height is met;

2) when the ship lift has an accident condition and the service power fails, the standby driving device 10 is put into use, and the standby driving device 10 has the functions of a diesel generator and a motor; the standby driving device 10 is connected with the bevel gear box 8 to be put into use and rotate, the bevel gear box 8 rotates, the transmission shaft 9 rotates, and therefore the screw rod 11 is driven to rotate; because the connecting device is connected to the escape ladder 5, when the screw rod 11 rotates, the connecting device drives one end of the escape ladder 5 to move up and down along the axial direction of the screw rod 11, and meanwhile, the second guide wheel 16 arranged at the other end of the escape ladder 5 rolls left and right along the track 17, so that the requirement of the escape ladder 5 on adjusting the escape height is met;

3) when the ship lift normally works, in order to facilitate operators to pass through the ship reception chamber underpass 15, the escape device driving system 3 operates the escape ladder 5 to move to be horizontally placed on the ground of the ship reception chamber underpass 15;

4) when the ship lift is in an emergency state, the escape device driving system 3 operates the escape ladder 5 to move to a certain angle so that people can escape;

5) when the ship lift needs to be overhauled, the overhaul crane 24 is manually operated, and an overhaul steel wire rope 26 of the overhaul crane 24 is connected to an overhaul lifting lug 25 of the escape ladder 5 to pull the escape ladder 5 to a horizontal suspension state; in order to service the equipment through the walkway 15.

The invention has the advantages that the invention can realize shutdown at any position within a certain height and butt joint of escape openings of the ship lift tower to form an escape passage by electric drive, standby electric drive device drive and manual drive, and realize safe locking at the shutdown position. The escape device in the form is convenient to operate, contributes to improving the design capability in the field of ship lifts, and has a wide application prospect.

The invention is further explained below with reference to the drawings and the detailed description.

Drawings

FIG. 1 is a general layout of an escape apparatus of a ship lift;

FIG. 2 is a structural layout view of an escape device of the ship lift;

FIG. 3 is a diagram of a driving system of the escape apparatus of the ship lift;

FIG. 4 is an isometric view of a ship lift escape apparatus configuration;

FIG. 5 is a schematic view of the escape apparatus of the ship lift in a normal operating state;

fig. 6 is a schematic layout of the escape apparatus of the ship lift in an emergency state;

FIG. 7 is a schematic layout view of the escape apparatus of the ship lift in a maintenance state;

fig. 8 is a detailed view of the structure of the lower end of the screw.

The reference numbers in the figures are: 1-ship lift ship reception chamber assembly, 2-escape device assembly, 3-escape device driving system, 4-escape device steel frame, 5-escape ladder, 6-motor, 7-speed reducer, 8-bevel gear box, 8.1-first bevel gear box, 8.2-second bevel gear box, 8.3-third bevel gear box, 8.4-fourth bevel gear box, 9-transmission shaft, 10-standby driving device, 11-screw, 12-connecting frame, 13-first guide wheel, 14-nut, 15-ship reception chamber horse way, 16-second guide wheel, 17-rail, 18-walkway, 19-railing, 20-frame structure, 21-ladder stand, 22-rail, 23-guide structure, 24-maintenance crane, 25-overhauling lifting lugs and 26-overhauling steel wire ropes; 27-thrust bearing, 28-end cover, 29-bottom cover.

Detailed Description

See fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8.

The invention relates to a screw transmission type escape device of a ship lift, which is arranged at the end part or the middle part of a ship lift ship reception chamber assembly 1 and comprises an escape device driving system, an escape device steel frame and an escape ladder 5; escape device actuating system, escape device steel frame, emergency ladder triplex all set up in ship lift end position, specifically do: the steel frame of the escape device is arranged at the end of the ship lift and is butted with an escape opening of a tower of the ship lift to form an escape passage; the escape device driving systems are arranged at the top and the side parts of the steel frame of the escape device; the escape ladder is arranged in the steel frame body of the escape device and above a ship receiving chamber underpass 15 at the end of the ship lift. The device can realize shutdown at any position within a certain height and butt joint of escape openings of the ship lift tower to form an escape passage through electric drive, standby electric drive device drive and manual drive, and realize safe locking at the shutdown position.

The steel frame of the escape device is a welded steel structure and comprises a frame structure 20, a ladder 21 arranged on the front side part of the steel frame of the escape device, a ring beam, an inclined support, an escape device mounting platform arranged on the top part and a fence 22 arranged on the periphery of the escape device mounting platform; the side part of the steel frame of the escape device is also provided with a guide structure 23; the guide structure 23 is vertically arranged at the rear side part of the steel frame of the escape device.

The escape device driving system comprises a motor 6, a speed reducer 7, a bevel gear box 8, a transmission shaft 9, a standby driving device 10 and a screw rod 11;

the motor 6, the speed reducer 7, the bevel gear box 8, the transmission shaft 9 and the standby driving device 10 are fixedly arranged on the escape device mounting platform; the standby driving device 10 is a device with a diesel generator, when the device is not put into use, the device is separated from the bevel gear box, when the device needs to be put into use, the transmission shaft of the device is pushed by a handle to be connected with the bevel gear box, and the diesel engine is started to drive the escape device.

The number of the bevel gear boxes 8 is four, and the four bevel gear boxes are arranged side by side and respectively comprise a first bevel gear box 8.1, a second bevel gear box 8.2, a third bevel gear box 8.3 and a fourth bevel gear box 8.4; the first bevel gear box 8.1, the second bevel gear box 8.2, the third bevel gear box 8.3 and the fourth bevel gear box 8.4 are transversely connected in series through a transmission shaft 9;

the first bevel gear box 8.1 and the fourth bevel gear box 8.4 are respectively and vertically provided with a screw rod 11;

the motor 6 is connected with a second bevel gear box 8.2 through a speed reducer 7 and a transmission shaft 9;

the standby driving device 10 is connected with the third bevel gear box 8.3;

the screw 11 is sleeved with a connecting device in threaded fit with the screw, the connecting device is connected with one end of the escape ladder 5, and the connecting device drives one end of the escape ladder 5 to be lifted to a certain height through the rotation of the screw 11;

the bottom of the screw rod 11 is provided with a rotating mechanism which is fixedly arranged on the ship reception chamber underpass 15;

the rotating mechanism comprises a thrust bearing 27, an end cover 28 and a bottom cover 29; the thrust bearing 27 is fixedly connected with the screw rod 11 at the bottom of the screw rod 11; the end cover 28 and the bottom cover 29 are buckled up and down, and then a bearing space is arranged inside the end cover and the bottom cover; the thrust bearing 27 is embedded in the bearing space, and the end cover 28 and the bottom cover 29 are fixedly connected through the upper end cover 28.

The connecting device structure of the invention is as follows: a connecting frame 12 is arranged; the connecting frame 12 is sleeved on the screw rod 11 and is connected with the screw rod 11 in a matching way; an internal thread matched with the screw rod 11 is arranged in the connecting frame 12; the connecting frame 12 is movably connected with one end of the escape ladder 5; the connecting frame 12 drives one end of the escape ladder 5 to be lifted or lowered by a certain height along with the rotation of the screw 11.

In a second aspect, the present invention provides a connecting device structure comprising: a connecting frame 12 and a nut 14 are arranged; the connecting frame 12 is fixedly connected with the nut 14; the internal thread of the nut 14 is matched with the external thread of the screw rod 11, and the nut 14 is sleeved on the screw rod 11 and is connected in a matching way; the connecting frame 12 is smooth and only sleeved on the screw rod 11;

the connecting frame 12 is movably connected with one end of the escape ladder 5; the nut 14 drives the connecting frame 12 and simultaneously drives one end of the escape ladder 5 to be raised or lowered by a certain height along with the rotation of the screw 11.

In a third aspect, the present invention provides a connecting device, comprising: a connecting frame 12 and a nut 14 are arranged; the connecting frame 12 is fixedly connected with the nut 14; the internal thread of the nut 14 is matched with the external thread of the screw rod 11, and the nut 14 is sleeved on the screw rod 11 and is connected in a matching way; the connecting frame 12 is sleeved on the screw rod 11 and is connected with the screw rod 11 in a matching way; an internal thread matched with the screw rod 11 is arranged in the connecting frame 12; the connecting frame 12 is movably connected with one end of the escape ladder 5; as the screw 11 rotates, the nut 14 and the connecting frame 12 together drive one end of the escape ladder 5 to be raised or lowered by a certain height.

The escape device driving system of the present invention includes a first guide wheel 13; the first guide wheel 13 is fixedly arranged on one side of the connecting frame 12 and is arranged towards the guide structure 23; the first guide wheel 13 is connected to the guide structure 23 in a rolling manner.

The escape device further comprises a second guide wheel 16 arranged at the lower part of one end of the escape ladder 5; a track 17 is arranged on the ship reception compartment underpass 15; the second guide wheel 16 is in rolling connection with the track 17 on the track 17; the escape ladder 5 comprises a walkway 18, and balustrades 19 arranged at both sides of the walkway 18.

The escape device also comprises a maintenance device; the maintenance device comprises a maintenance hanger 24 arranged on one side of the escape device mounting platform, a maintenance lifting lug 25 arranged at any position between the side wall of the middle part of the escape ladder 5 and the side wall of the end far away from the steel frame of the escape device, a maintenance motor and a maintenance steel wire rope 26; one end of the overhaul steel wire rope 26 is fixedly arranged on the overhaul motor, and the overhaul steel wire rope 26 sequentially passes through the overhaul lifting lug 24 and the overhaul lifting lug 25 and then is fixedly connected with the overhaul lifting lug 25; the maintenance wire rope 26 is rolled or released by the maintenance motor to drive one end of the escape ladder 5 far away from the steel frame of the escape device to rise or fall.

The use method of the screw transmission type escape device of the ship lift comprises the following steps:

1) when the ship lift has an accident, an operator operates the escape device, and the ship lift is driven by the service electricity, the motor 6 rotates, the speed reducer 7 rotates, the bevel gear box 8 rotates, and the screw rod 11 is driven to rotate; because the connecting device is connected to the escape ladder 5, when the screw rod 11 rotates, the connecting device drives one end of the escape ladder 5 to move up and down along the axial direction of the screw rod 11, and meanwhile, the second guide wheel 16 arranged at the other end of the escape ladder 5 rolls left and right along the track 17, so that the requirement of the escape ladder 5 on adjusting the escape height is met;

2) when the ship lift has an accident condition and the service power fails, the standby driving device 10 is put into use, and the standby driving device 10 has the functions of a diesel generator and a motor; the standby driving device 10 is connected with the bevel gear box 8 to be put into use and rotate, the bevel gear box 8 rotates, the transmission shaft 9 rotates, and therefore the screw rod 11 is driven to rotate; because the connecting device is connected to the escape ladder 5, when the screw rod 11 rotates, the connecting device drives one end of the escape ladder 5 to move up and down along the axial direction of the screw rod 11, and meanwhile, the second guide wheel 16 arranged at the other end of the escape ladder 5 rolls left and right along the track 17, so that the requirement of the escape ladder 5 on adjusting the escape height is met;

3) when the ship lift normally works, in order to facilitate operators to pass through the ship reception chamber underpass 15, the escape device driving system 3 operates the escape ladder 5 to move to be horizontally placed on the ground of the ship reception chamber underpass 15;

4) when the ship lift is in an emergency state, the escape device driving system 3 operates the escape ladder 5 to move to a certain angle so that people can escape;

5) when the ship lift needs to be overhauled, the overhaul crane 24 is manually operated, and an overhaul steel wire rope 26 of the overhaul crane 24 is connected to an overhaul lifting lug 25 of the escape ladder 5 to pull the escape ladder 5 to a horizontal suspension state; in order to service the equipment through the walkway 15.

The foregoing is only a part of the specific embodiments of the present invention and specific details or common general knowledge in the schemes have not been described herein in more detail. It should be noted that the above-mentioned embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation for those skilled in the art are within the protection scope of the present invention. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.