TWI783630B - Apparatus for slopingly turning large underwater cylinder and method thereof - Google Patents

Abstract

An apparatus is provided for slopingly turning a large underwater cylinder. The apparatus comprises a seat, a rotating power device, and a pushing device. Therewith, an operator can easily cut a large cylinder outside a pool. In addition to overcoming the difficulty of adjusting the position for cutting the large cylinder of radioactive objects in water, the operator is stayed away from radiation hazards. A waterproof design inside the apparatus according to the present invention is the key technology. Electrical facilities are completely eliminated for the underwater operation. Not only the difficulties of maintaining waterproof facilities are reduced, but also the doubt of general electric motor leakage caused by long-term water soaking in the electrical facilities is put an end to. The safety of the facilities is improved while avoiding the risk of electric shock caused by leakage of electricity. Hence, the requirement of long-term underwater operation of nuclear-facility decommissioning is met. Therefore, the present invention effectively reduces the radiation dose of personnel and improves work efficiency and safety, which contributes to the completion of decommissioning and dismantling nuclear-facility.

Description

Tilting device and tilting method for turning large cylindrical objects underwater

The present invention relates to a tilting device and its tilting method for turning a large cylindrical object under water, especially relates to a device that can be easily operated by the operator outside the pool for cutting operation, especially a mechanical mechanism device The unique design completely eliminates the electrical facilities in the water, reduces the difficulty of maintaining the equipment in the water, and eliminates the concern of leakage, so as to improve the safety of the equipment.

During the decommissioning process of nuclear facilities, high-activity radiation objects must be cut underwater to ensure the safety of decommissioning staff working in a radioactive environment. However, it is difficult to operate large-scale objects during underwater cutting operations, and must be turned over in a timely manner to complete the pre-planned cutting path.

At present, most of the waterproof patents on the rotating shaft belong to the level of anti-splashing or shallow water areas, and cannot be used in deep water areas. Although there is a conventional patent that proposes a motor for underwater work, its content indicates that it can be used in deep water areas. It uses the heat generated by the motor. The aqueous solution infiltrated into the motor from the gap of the rotating shaft is turned into gas and discharged from the gap, but from the waterproof method adopted in the disclosed patent technology, it can be seen that this patent has two shortcomings, including one, the conventional patent The heat generated by the motor needs to reach a certain value to evaporate the water, but there is no waterproof function before this; and secondly, the waterproof depth of this conventional patent is limited, and the deeper the motor is placed in the water, the higher the water pressure will be The higher the pressure, the higher the boiling point of water, and the more difficult it is to evaporate into gas, so that its waterproof effect is equal to failure.

Facing the problem that the cutting work of a large amount of radioactive waste during the decommissioning of nuclear facilities will expose the workers to a high-radiation working environment, the current method of cutting radioactive waste into water is an important way to reduce the dose received by workers due to work. The best operation mode, so that the demand for the development of operating devices and equipment suitable for underwater emerges accordingly. However, in some cases, when the implements or equipment will perform work tasks underwater, the control of large objects often needs to be completed with the help of a power system. In view of the design of the power system, it must be able to operate underwater for a long time, and the process Therefore, it is necessary to develop a set of inventions that can solve the relevant underwater operation problems and the technical shortcomings of previous proposals.

The main purpose of the present invention is to overcome the above-mentioned problems encountered in the prior art and provide a device that allows the operator to operate the device easily outside the pool of cutting operation, in addition to overcoming the difficulty of adjusting the cutting orientation of large radioactive objects in the water, and Far away from the hazards of radiation, the design of the mechanical mechanism device completely eliminates the electrical facilities in the water, reduces the difficulty of maintaining the equipment in the water, and eliminates the suspicion of leakage, so as to improve the safety of the equipment. The tilting device for turning large cylindrical objects underwater and its tilting method.

In order to achieve the above purpose, the present invention is a tilting device for turning a large cylindrical object underwater, which includes: a body mechanism, including a base, a dumping shaft arranged on the base, and a tilting shaft arranged on the dumping shaft The above is a dumping arm; a rotary power mechanism, including a group of hydraulic cylinders with two ends respectively arranged between the base and the dumping shaft, and a rotating disk arranged on the dumping arm, a central rotating shaft, and a bearing Box, a speed reducer, a hydraulic motor and a sprocket set, the central rotating shaft system passes from the inside of the bearing box to the front side to the outside and passes through the center of the rotating disc in a watertight manner, and before the bearing box, Several front oil seal assemblies and several rear oil seal assemblies are arranged inside the rear side, and each front oil seal assembly includes a front bone frame oil seal, a front O-ring, an annular air bag arranged between the rotating disk and the front frame oil seal, and an air nozzle arranged on the annular air bag, each of the rear oil seal assemblies includes a rear frame oil seal and a rear O-rings, and a waterproof grease is filled between the bearings and the inner space between the front and rear frame oil seals at the front and rear sides of the bearing box. The rotary power mechanism converts the pressure of hydraulic oil from the hydraulic motor to rotary The power is transmitted to the reducer to amplify the torque, and then the central rotating shaft is driven to rotate through the sprocket set, and the direction of the liquid oil pressure is changed through the hydraulic motor, thereby changing the direction of rotation of the central rotating shaft; and A pressing plate pushing mechanism includes a base set on the base, a pushing unit set on the base, a set of rollers and a rotating platen, the pushing unit consists of an air/hydraulic cylinder, a push rod, A pressure frame and a set of pressure wheels, one end of the rotating pressure plate is docked with the central rotating shaft, and the pressure plate pushing mechanism is used to axially clamp a large cylindrical object to prevent the large cylindrical object from rotating Sliding occurs during the time; by the composition of the above-mentioned components, one end of the central tube of the large cylinder is provided to be inserted into the central rotating shaft and firmly placed on the rotating disk, and the other end of the central tube of the large cylinder Place the rotating platen, use the high pressure of the hydraulic oil to drive the group of hydraulic cylinders to pull the dumping arm to rotate around the dumping axis to complete the dumping of the large cylindrical object, and then use the air/hydraulic cylinder to generate Thrust force pushes the press frame through the push rod and makes the set of pressure wheels squeeze against the rotating platen to generate a clamping force, so that the large cylinder is clamped between the rotating platen and the rotating plate , and then use the hydraulic oil to drive the hydraulic motor at high pressure to generate rotational power, and transmit the power to the central rotating shaft through the reducer and the sprocket set so that the large cylinder can rotate forward or reverse.

In the above embodiments of the present invention, the hydraulic oil is glycol or hydraulic fluid soluble in water.

In the above-mentioned embodiment of the present invention, the outer part of the rear side of the bearing housing is directly covered with an outer waterproof cover, thereby forming a first outer waterproof cover capable of operating underwater.

In the above embodiments of the present invention, the material of the annular airbag is rubber, silicon rubber or an elastic material capable of blocking high-pressure water.

In the above-mentioned embodiment of the present invention, the bearing box injects high-pressure air into the annular airbag through the air nozzle, so that the annular airbag gradually becomes larger due to the air pressure, and finally the outer surface of the annular airbag will be in contact with the surrounding metal and the surrounding metal of the bearing box. The central rotating shaft is in close contact, and when the high-pressure air pressure is greater than the water depth pressure, it is ensured that the water is isolated from the bearing housing by the annular air bag, thereby forming a second outer layer waterproof that can operate underwater.

In the above-mentioned embodiments of the present invention, the waterproof grease maintains the lubricity of the bearing and prevents rust caused by the contact of a small amount of water vapor with the metal surface of the bearing, and the front and rear frame oil seals prevent the waterproof grease from leaking into the water In order to avoid oil slicks on the surface of the water, thereby forming a waterproof inner layer that can operate underwater.

In the above-mentioned embodiments of the present invention, the waterproof grease is butter or semi-solid lubricating oil.

In the above embodiments of the present invention, one end of the push rod is connected to the air/hydraulic cylinder, and the other end passes through the platform on the base that carries the set of rollers and is connected to the press frame, and the press frame extends from both sides to connect the set of rollers. There is a push distance between the set of pressure rollers and the rotating platen when the air/hydraulic cylinder does not apply thrust.

In the above-mentioned embodiments of the present invention, the set of rollers is used to support the weight of both the central rotating shaft and the large cylindrical object and maintain the free rotation of the central rotating shaft.

The method of inverting a large cylindrical object underwater using the tilting device for inverting a large cylindrical object underwater in the above-mentioned embodiments of the present invention is to use a hydraulic method to enable the large cylindrical object to be dumped in water and rotation action.

100: Tilting device

1: Seat mechanism

10: base

11: dumping shaft

12: Dumping arm

2: Rotary power mechanism

20: hydraulic cylinder

21: Rotating disk

22: Central axis of rotation

23: Bearing box

231: Bearing

232: waterproof grease

24: reducer

25: hydraulic motor

26: sprocket set

261: first sprocket

262: Second sprocket

263: chain

27: Front oil seal assembly

271: Front frame oil seal

272: Front O-ring

273: Annular airbag

274: air nozzle

28: Rear oil seal assembly

281: rear frame oil seal

282: Rear O-ring

29: Outer waterproof cover

3: Platen pushing mechanism

30: base

301: carrier

31: Push unit

311: Pneumatic/hydraulic cylinder

312: putter

313: press frame

314: pressure wheel

32:Roller

33: Turn the platen

4: large cylinder

41: Center tube

Fig. 1 is a schematic diagram of the main components of the tilting device for turning a large cylindrical object underwater according to the present invention.

Fig. 2 is a schematic diagram of placing a large cylindrical object on a tilting device according to the present invention.

Fig. 3 is a schematic diagram of the tilting device of the present invention dumping a large cylindrical object.

Fig. 4 is a schematic diagram of a large cylindrical object being rotated by the tilting device of the present invention.

Fig. 5 is a schematic structural view of the rotary power mechanism of the present invention.

Fig. 6 is a schematic diagram of the waterproof structure of the central rotating shaft of the present invention.

Fig. 7 is an inflatable and waterproof schematic diagram of the annular airbag of the present invention.

Fig. 8 is a schematic structural view of the pressing plate pushing mechanism of the present invention.

Fig. 9 is a schematic diagram of the operation of the pressing plate pushing mechanism of the present invention.

Please refer to "Fig. 1 to Fig. 9", which are schematic diagrams of the main components of the tilting device for inverting a large cylindrical object underwater according to the present invention, and the large cylindrical object placed on the tilting device according to the present invention. The schematic diagram of the tilting device of the present invention dumping the large cylindrical object, the schematic diagram of the tilting device of the present invention rotating the large cylindrical object, the structural schematic diagram of the rotary power mechanism of the present invention, and the waterproof structure of the central rotating shaft of the present invention Schematic diagram, schematic diagram of inflatable and waterproof annular airbag of the present invention, schematic structural diagram of the pressing plate pushing mechanism of the present invention, and schematic diagram of the operation of the pressing plate pushing mechanism of the present invention. As shown in Figure 1: the present invention is a tilting device and a tilting method for inverting a large cylindrical object underwater. The tilting device 100 includes a body mechanism 1, a rotary power mechanism 2 and a pressing plate to push Organization 3 is formed.

The seat mechanism 1 mentioned above includes a base 10 , a dumping shaft 11 disposed on the base 10 , and a dumping arm 12 disposed on the dumping shaft 11 .

The rotating power mechanism 2 includes a group of hydraulic cylinders 20 arranged between the base 10 and the dumping shaft 11 at both ends, a rotating disk 21 arranged on the dumping arm 12, a central rotating shaft 22, a bearing Box 23, a speed reducer 24, a hydraulic motor 25 and a sprocket wheel set 26, the central rotating shaft 22 is watertight from the inside of the bearing box 23 to the front side to the outside and through the center of the rotating disc 21 , and several front oil seal assemblies 27 and several rear oil seal assemblies 28 are arranged before and inside the rear side of the bearing housing 23. Each of the front oil seal assemblies 27 includes a front skeleton oil seal 271, a front O-ring 272, An annular air bag 273 arranged between the rotating disk 21 and the front frame oil seal 271, and an air nozzle 274 arranged on the annular air bag 273, each of the rear oil seal assemblies 28 includes a rear frame oil seal 281 and a rear O-shaped Ring 282. Wherein, the sprocket set 26 includes a first sprocket 261 and a second sprocket 262 , and a chain 263 winds between the first sprocket 261 and the second sprocket 262 .

The pressing plate pushing mechanism 3 includes a base 30 arranged on the base 10, a pushing unit 31 arranged on the base 30, a set of rollers 32 and a rotating platen 33. The pushing unit 31 is composed of an air/ A hydraulic cylinder 311 , a push rod 312 , a pressure frame 313 and a set of pressure wheels 314 are formed. One end of the rotating pressure plate 33 is docked with the central rotating shaft 22 . If so, a brand-new tilting device 100 for inverting a large cylindrical object underwater is formed by the structure disclosed above.

Since the implements or equipment will perform work tasks underwater in some cases, the control of large objects often needs to be completed with the help of a power system. In the design of the power system, it must be able to operate underwater for a long time, and there must be no safety or stability problems in the process. Therefore, the tilting device 100 proposed by the present invention can solve the problems caused by the long-term underwater operation of the equipment. follow-up questions, such as the Water resistance and safety. Regarding the waterproof design, the present invention can achieve the normal rotation of the central rotating shaft and has waterproof effect, which can avoid the problem of bearing corrosion. Regarding the safety design, the present invention can utilize hydraulic motors, planetary gears and sprockets, etc. as power transmission sources for the rotary power mechanism, which can not only avoid the use of electric motors to avoid electric shock hazards caused by electric leakage, but also greatly reduce the risk of electric shock caused by electric leakage. The small overall mechanism volume has considerable advantages for the design and layout of the equipment.

Based on the above, the present invention adopts mechanical principle and special waterproof design to meet the basic requirements for underwater operation of machinery and equipment, and the proposed tilting device and its tilting method are not too complicated in design. The cost is also lower. The following examples will be used for illustration, but the following examples are only examples for understanding the details and connotation of the present invention, but are not intended to limit the patent scope of the present invention.

When in use, the present invention uses the above-mentioned tilting device 100 for overturning a large cylindrical object under water to carry out a method for inverting a large cylindrical object underwater, which is to use a hydraulic method to make a large cylindrical object 4 Performs pouring and spinning motions in water. When one end of the central tube 41 of the large cylindrical object 4 is inserted into the central rotating shaft 22 of the rotary power mechanism 2, it can be firmly placed on the rotating disk 21, and placed on the other end of the central tube 41 of the large cylindrical object 4 for rotation. The pressure plate 33 uses the high pressure of ethylene glycol hydraulic oil to drive the hydraulic cylinder 20 to pull the dumping arm 12 to rotate around the dumping shaft 11 to complete the dumping of the large cylindrical object 4, as shown in Figures 2 and 3. When it is dumped to a nearly horizontal state, the pressing plate pushing mechanism 3 is used to push the rotating platen 33 so as to generate a clamping force, so that the large cylindrical object 4 is clamped between the rotating plate 21 and the rotating platen 33 In time, the high pressure of ethylene glycol hydraulic oil can be used to drive the hydraulic motor 25 to generate rotational power, and the power is transmitted to the central rotating shaft 22 through the reducer 24 and the sprocket set 26 so that the large cylindrical object 4 can be rotated. To or reverse rotation, as shown in Figure 4.

As shown in Figure 5, the rotary power mechanism 2 converts the pressure of ethylene glycol hydraulic oil from the hydraulic motor 25 into rotary power, and transmits it to the reducer 24 to amplify the torque and then passes through the The chain wheel set 26 drives the central rotating shaft 22 to rotate. For the hydraulic motor 25, if the direction of the liquid oil pressure is changed, the rotating direction of the central rotating shaft 22 can also be changed. The device 100 uses ethylene glycol (or other water-soluble hydraulic fluid) hydraulic oil as the power source, which not only can minimize the volume of the entire set of rotating power mechanism 2, but also ethylene glycol is soluble in water. Therefore, the structural design of the tilting device 100 proposed by the present invention will be suitable for underwater operation.

As shown in Figure 6, the waterproof design of the bearing housing 23 is used to solve the problem of water leakage when the rotating components are moving underwater. Water entering the bearing housing 23 will easily cause corrosion of internal parts and affect the rotating function and equipment. Shortened lifespan. The waterproof method adopted in the present invention adopts the design of waterproofing the outer layer and waterproofing the inner layer, and there are two ways of waterproofing the outer layer. The first method is to directly cover an outer layer of waterproof cover 29 on the rear side of the bearing box 23, which is suitable for the case where the central rotating shaft 22 does not pass through from the inside of the bearing box 23 to the outside of the rear side. This is a general waterproof method. , thereby forming a first outer waterproof person capable of operating underwater. The second way is to consider that the central rotating shaft 22 generally uses a skeleton oil seal as a water barrier from the inside to the outside of the bearing housing 23, but the higher the water depth, the greater the pressure, and the skeleton oil seal alone will be difficult to prevent water from entering In the bearing box, it is necessary to add a group of designs capable of blocking high-pressure water at the front end of the frame oil seal. This design method is to install the annular air bag 273 between the rotating disk 21 and the front frame oil seal 271, as shown in Figure 7 ( As shown in a), the material of the annular airbag 273 is elastic materials such as rubber or silicon rubber, and an air nozzle 274 is arranged on the annular airbag 273, and high-pressure air is poured in the annular airbag 273 through the air nozzle 274, and the annular airbag 273 Due to the air pressure, the outer surface of the annular airbag 273 will be in close contact with the inner peripheral metal of the bearing housing 23 and the central rotating shaft 22. As shown in Fig. 7 (b), the force of close contact is the same as that of the annular airbag 273 is related to the air pressure, and the air pressure value poured into the annular air bag 273 is related to the water depth pressure, usually Can make air pressure be greater than water depth pressure, can guarantee that water is isolated outside this bearing housing 23 by this annular air bag 273 like this, forms the second outer layer waterproof person that can operate under water thus. The inner waterproofing system is between the front and rear frame oil seals 271 and 281 of the bearing box 23, the bearing 231 (including roller bearings and angled roller bearings) and the inner space filled with butter or semi-solid The lubricating oil is used as a waterproof grease 232, which can maintain the lubricity of the bearing 231 and prevent rust caused by the contact of a small amount of water vapor with the metal surface of the bearing 231, and the front and rear frame oil seals 271, 281 can also isolate the waterproof grease 232 leaks into the water to avoid oil slicks on the water surface, thereby forming a waterproof inner layer that can operate underwater.

As shown in FIG. 8, the pressing plate pushing mechanism 3 can axially clamp the large cylindrical object 4, which can prevent the large cylindrical object 4 from slipping when it rotates. The design of the pressing plate pushing mechanism 3 is that one end of the push rod 312 is connected to the air/hydraulic cylinder 311, and the other end passes through the stage 301 carrying the set of rollers 32 on the base 30 and is connected with the pressing frame 313. The pressing frame 313 Extend and connect the set of pressure wheels 314 from both sides. When the air/hydraulic cylinder 311 does not apply thrust, there is a pushing distance between the set of pressure wheels 314 and the rotating platen 33, as shown in Fig. 9 (a). Show. When the air/hydraulic cylinder 311 generates a thrust, the push rod 312 pushes the pressing frame 313 and makes the group of pressing wheels 314 squeeze to the rotating pressing plate 33, and simultaneously the large cylindrical object 4 is also pressed by the rotating. The disk 33 and the rotating disk 21 are clamped, as shown in Fig. 9 (b). The set of rollers 32 on the pressing plate pushing mechanism 3 can support both the weight of the central rotating shaft 22 and the large cylindrical object 4 and can maintain the free rotation of the central rotating shaft 22 .

The present invention designs a mechanism suitable for turning large cylindrical objects underwater, which enables operators to easily operate the device outside the pool where the cutting operation is performed. In addition to overcoming the difficulty of adjusting the cutting orientation of large radioactive objects in the water, it also keeps away from the radiation Hazard, the waterproofing of the special structure inside the tilting device The permanent design is the key technology of the present invention. It completely eliminates the electrical facilities in the water, which not only reduces the difficulty of equipment maintenance in the water, but also eliminates the electric leakage concerns of general motors and motors due to the long-term soaking of electrical equipment in water, which can improve the safety of the equipment and avoid the leakage caused by electric leakage. The danger of electric shock to personnel, so as to meet the needs of long-term underwater operation of nuclear facility decommissioning equipment. Therefore, the invention can effectively reduce the radiation dose of personnel, improve work efficiency and safety, and contribute to the completion of decommissioning and dismantling work.

Thereby, the tilting device and the tilting method of the large-scale underwater turning cylinder mentioned in the present invention have the following characteristics and advantages:

1. The present invention uses a mechanical mechanism device as the design of the power transmission string, which can reduce the limited underwater space occupied by the equipment. Careful selection of anti-rust materials and excellent waterproof design of the central rotating shaft enable the tilting device to maintain smooth operation after being placed in water for a long time, and the inside of the mechanism will not fail due to water vapor corrosion.

2. The present invention adopts the air bag inflation method, which is also applicable to places where the water is deeper. It only needs to increase the air pressure in the annular air bag.

3. The present invention can solve the waterproof problem of rotating moving objects underwater, effectively prolonging the life of machinery and equipment, in addition to reducing the cost of machinery and equipment, increasing the safety of personnel operations, and having higher controllability and safety. It also has low development costs and short manufacturing time. short advantage.

4. The present invention can reduce the cost and risk of dismantling operations.

To sum up, the present invention is a tilting device and its tilting method for turning a large cylindrical object under water, which can effectively improve various disadvantages of conventional use, and enable the operator to easily operate the device outside the pool where the cutting operation is performed. In addition to overcoming the difficulty of adjusting the cutting position of large radioactive objects in the water, and keeping away from the hazards of radiation, the design of the mechanical mechanism device completely eliminates the electrical facilities in the water, reduces the difficulty of maintaining the equipment in the water, and eliminates the fear of leakage, so as to improve the safety of the equipment characteristics, so that the production of the present invention can be more advanced, more practical, and more in line with the needs of users, and it has indeed met the requirements for invention patent applications. ｄ File a patent application in accordance with the law.

But the above-mentioned ones are only preferred embodiments of the present invention, and should not limit the scope of the present invention; therefore, all simple equivalent changes and modifications made according to the patent scope of the present invention and the contents of the description of the invention , should still fall within the scope covered by the patent of the present invention.

100: Tilting device

1: Seat mechanism

10: Base

11: dumping shaft

12: Dumping arm

2: Rotary power mechanism

20: hydraulic cylinder

21: Rotating disk

22: Central axis of rotation

23: Bearing box

24: Reducer

25: hydraulic motor

26: sprocket set

27: Front oil seal assembly

271: Front frame oil seal

272: Front O-ring

273: Annular airbag

274: air nozzle

28: Rear oil seal assembly

281: rear frame oil seal

282: Rear O-ring

3: Platen pushing mechanism

30: base

31: Push unit

311: Pneumatic/hydraulic cylinder

312: putter

313: press frame

314: pressure wheel

32:Roller

33: Turn the platen

Claims (10)

A tilting device for turning a large cylindrical object underwater, comprising: a body mechanism, including a base, a dumping shaft arranged on the base, and a dumping arm arranged on the dumping shaft; a rotating power The mechanism includes a group of hydraulic cylinders with two ends respectively arranged between the base and the dumping shaft, a rotating disk arranged on the dumping arm, a central rotating shaft, a bearing box, a reducer, and a hydraulic motor With a sprocket set, the central rotating shaft is watertight from the inside of the bearing box to the front side to the outside and passes through the center of the rotating disc, and several front oil seals are arranged inside the front and rear sides of the bearing box Assembly and several rear oil seal assemblies, each of the front oil seal assemblies includes a front skeleton oil seal, a front O-ring, an annular air bag arranged between the rotating disc and the front skeleton oil seal, and an annular air bag arranged on the The upper air nozzle, each of the rear oil seal assemblies includes a rear frame oil seal and a rear O-ring, and the bearing and the internal space between the front and rear frame oil seals at the front and rear sides of the bearing box are filled with a waterproof Grease, the rotary power mechanism converts the pressure of hydraulic oil from the hydraulic motor into rotary power, and transmits it to the reducer to amplify the torque, and then drives the central rotary shaft to rotate through the sprocket set, and through the hydraulic pressure The motor changes the pressure direction of the liquid oil, thereby changing the rotation direction of the central rotating shaft; and a pressing plate pushing mechanism, including a base set on the base, a pushing unit set on the base, and a set of rollers With a rotating platen, the pushing unit is composed of an air/hydraulic cylinder, a push rod, a press frame and a set of pressure wheels. One end of the rotating platen is connected to the central rotating shaft. The large cylinder is axially clamped to prevent the large cylinder from slipping when it rotates; through the composition of the above-mentioned components, one end of the central tube of the large cylinder is inserted into the central rotating shaft and is stable. Put it on the rotating plate, and place the rotating platen on the other end of the central tube of the large cylinder, use the high pressure of the hydraulic oil to drive the group of hydraulic cylinders to pull the dumping arm to rotate around the dumping axis to complete the large cylinder The object is dumped, and the air/hydraulic cylinder is used to generate thrust when it is dumped to a nearly horizontal state. Push the press frame through the push rod and make the set of pressure wheels squeeze against the rotating platen to generate a clamping force, so that the large cylinder is clamped between the rotating platen and the rotating plate, and then The hydraulic motor is driven by high pressure of the hydraulic oil to generate rotational power, and the power is transmitted to the central rotating shaft through the reducer and the sprocket set so that the large cylindrical object can rotate forward or reverse. According to the tilting device for inverting a large cylindrical object underwater as described in item 1 of the patent scope of the application, the hydraulic oil is ethylene glycol or a hydraulic fluid soluble in water. According to the tilting device for turning a large cylindrical object under water as described in item 1 of the scope of the patent application, an outer waterproof cover is directly covered on the rear side of the bearing box, thus forming a first underwater operation. An outer layer is waterproof. According to the tilting device for inverting a large cylindrical object under water as described in item 1 of the scope of the patent application, the material of the annular airbag is rubber, silicon rubber or an elastic material that can block high-pressure water. According to the tilting device for inverting a large cylindrical object under water as described in item 1 of the scope of the patent application, the bearing box injects high-pressure air into the annular air bag through the air nozzle, so that the annular air bag gradually changes due to the air pressure. Finally, the outer surface of the annular airbag will be in close contact with the inner peripheral metal of the bearing box and the central rotating shaft. When the high-pressure air pressure is greater than the water depth pressure, it is ensured that the water is isolated from the bearing box by the annular airbag, thus Forms a second outer waterproof layer capable of operating underwater. According to the tilting device for inverting a large cylindrical object under water as described in item 1 of the scope of the patent application, the waterproof grease maintains the lubricity of the bearing and prevents a small amount of water vapor from contacting the metal surface of the bearing to cause rust , and the front and rear frame oil seals isolate the waterproof grease from leaking into the water to avoid oil slicks on the water surface, thus forming an inner layer waterproof that can operate underwater. According to the tilting device for inverting a large cylindrical object under water described in item 1 of the scope of the patent application, the waterproof grease is butter or semi-solid lubricating oil. According to the tilting device for turning over a large cylindrical object under water according to item 1 of the scope of the patent application, one end of the push rod is connected to the air/hydraulic cylinder, and the other end runs through the base to carry the set of rollers The carrier is connected to the pressure frame, and the pressure frame extends from both sides to connect the set of pressure wheels. When the air/hydraulic cylinder does not apply thrust, there is a pushing distance between the set of pressure wheels and the rotating platen . The tilting device for inverting a large cylindrical object under water according to item 1 of the scope of the patent application, wherein the set of rollers is used to support the weight of both the central rotating shaft and the large cylindrical object and can maintain the center The axis of rotation turns freely. A method for inverting a large cylindrical object underwater using the tilting device for inverting a large cylindrical object under water described in any one of items 1 to 9 of the scope of the patent application, which uses a hydraulic method to make the large The cylinder can be poured and rotated in water.

Images