CN113309464B - Oil pressure balancing device for diving equipment and use method thereof - Google Patents

Oil pressure balancing device for diving equipment and use method thereof Download PDF

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Publication number
CN113309464B
CN113309464B CN202110853767.9A CN202110853767A CN113309464B CN 113309464 B CN113309464 B CN 113309464B CN 202110853767 A CN202110853767 A CN 202110853767A CN 113309464 B CN113309464 B CN 113309464B
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shell
fixedly connected
inner cavity
wall
sealing
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CN113309464A (en
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黄晓蕾
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Jiangsu Nantong Guanqian New Building Materials Technology Co ltd
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Jiangsu Nantong Guanqian New Building Materials Technology Co ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/12Underwater drilling
    • E21B7/122Underwater drilling with submersible vertically movable guide
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00Rotary drilling
    • E21B3/02Surface drives for rotary drilling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/46Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings

Abstract

The invention discloses an oil pressure balancing device for diving equipment and a using method thereof. When the arc-shaped supporting plate moves outwards, the pull rod can be driven to move outwards at the same time, the piston plate I is further pulled to slide in the inner cavity of the liquid pumping shell, hydraulic oil in the inner cavity of the sealing shell is sucked into the inner cavities of the upper air bag and the lower air bag through the action of the two groups of one-way valves, at the moment, the upper air bag and the lower air bag expand, the connecting positions of the rotating shaft and the upper sealing gasket as well as the lower sealing gasket are filled and sealed, and the sealing performance of the device is improved.

Description

Oil pressure balancing device for diving equipment and use method thereof
Technical Field
The invention relates to the technical field of deep water pile foundation construction equipment, in particular to an oil pressure balancing device for diving equipment and a using method thereof.
Background
The pile foundation is a foundation form with high bearing capacity, wide application range and long history. With the improvement of production level and the development of scientific technology, the type, process, design theory, calculation method and application range of the pile foundation are greatly developed, and the method is widely applied to projects such as high-rise buildings, ports, bridges and the like.
In deep water pile foundation construction, the deeper the drilling depth of a pile machine is, the higher the pressure of external water is, for the pile machine with a speed reducer and a power system arranged on a guide rod, the higher the external pressure borne by a sealing element of the speed reducer and the power system is, if the internal and external pressure difference is too large, the problem that external muddy water penetrates through the sealing element and permeates into equipment to cause equipment damage exists, and the existing common pile machine does not solve the problem.
Disclosure of Invention
The invention aims to provide an oil pressure balancing device for diving equipment and a using method thereof, which have the advantages of self-adaptive adjustment of oil pressure balance of an inner cavity of sealing equipment, leakage prevention, good sealing performance and high automation degree, and solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an oil pressure balancing unit for diving equipment and application method thereof, includes the pile foundation shell, the top fixedly connected with lifter of pile foundation shell, the external elevating gear in top of lifter, lateral wall fixedly connected with driving motor on the inner chamber of pile foundation shell, driving motor's bottom axle center position rotates and is connected with the pivot, the bottom fixedly connected with drill bit of pivot, driving motor's the bottom relative outer wall fixed mounting of pivot has sealing mechanism.
Preferably, sealing mechanism includes seal housing, seal housing's top fixedly connected with upper seal pad, upper seal pad's top and driving motor's bottom fixed connection, seal housing's bottom fixedly connected with lower seal pad, the outer wall of pivot run through upper seal pad and lower seal pad and with upper seal pad and lower seal pad's intermediate position swing joint, the outer wall swing joint of the relative pivot of inner chamber of seal housing has the mechanism of strutting.
Preferably, the opening mechanism includes the fluted disc, the inner wall of fluted disc and the outer wall swing joint of pivot, the fluted disc does not rotate and rotate along with the pivot rotation, the chute has been seted up to the upper surface of fluted disc, the chute is provided with four sets and evenly distributed at the upper surface of fluted disc, the positive meshing of fluted disc is connected with the coupling gear, the below swing joint of fluted disc has the opening frame.
Preferably, prop open the frame and include the lantern ring, the inner wall of the lantern ring cup joints at the outer wall of pivot, and does not follow the pivot and rotate, the bottom of the lantern ring and seal housing's inner wall fixed connection, the outer wall fixedly connected with spout of the lantern ring, the spout is provided with four groups, and distributes at the outer wall of the lantern ring uniformly, the inner chamber sliding connection of spout has the slide bar, the top fixedly connected with of slide bar and the guide bar of chute looks adaptation, the one end fixedly connected with arc fagging of the lantern ring is kept away from to the slide bar, the equal fixedly connected with pull rod in top and the bottom intermediate position of arc fagging, the one end fixedly connected with drawing liquid mechanism who props open the frame is kept away from to the pull rod.
Preferably, drawing liquid mechanism includes the drawing liquid casing, the inner chamber sliding connection of drawing liquid casing has piston plate one, the outer wall fixed connection of the one end of strutting the frame and piston plate one is kept away from to the pull rod, the pull rod is "L" shape structure, the check valve to drawing liquid casing inner chamber intercommunication is seted up to one side wall that the drawing liquid casing is close to the pivot, the check valve to drawing liquid casing outer intercommunication is seted up to the top intermediate position of drawing liquid casing, the upside the gasbag is gone up to the top fixedly connected with of drawing liquid casing, go up the top of gasbag and the lower lateral wall fixed connection of sealed pad, the downside gasbag under the bottom fixedly connected with of drawing liquid casing, the bottom of gasbag and the last lateral wall fixed connection of sealed pad down, the right side lateral wall fixedly connected with of sealed casing is used for adjusting the balanced feed liquor valve of oil pressure.
Preferably, the liquid inlet valve comprises a valve body, a mounting plate is fixedly connected to the left side of an inner cavity of the valve body, a push rod is movably connected to the inner wall of the mounting plate, a valve core is fixedly connected to the right end of the push rod, a liquid penetrating hole is formed in the outer wall of the valve core, a first spring is arranged between the left side wall of the valve core and the right side wall of the mounting plate, a communicating pipe is fixedly connected to the left side wall of the valve body, the left end of the communicating pipe penetrates through the inner cavity of the sealing shell, a rack is fixedly connected to the left side wall of the push rod, the rack extends to the inner cavity of the sealing shell and is meshed and connected with one surface, away from the fluted disc, of the coupling gear, and a pressure monitoring mechanism for monitoring the deepwater pressure is fixedly connected to the right side wall of the valve body.
Preferably, the pressure monitoring mechanism comprises a monitoring shell, a filter screen is arranged on the lower side wall of the monitoring shell, the top of the monitoring shell is fixedly connected with a liquid storage shell, the left end and the right end of the inner wall of the monitoring shell are fixedly connected with elastic films, the middle position of the top of the elastic film is fixedly connected with a push plate, the top of the push plate is fixedly connected with a connecting column, the top of the inner cavity of the monitoring shell is fixedly connected with a limiting plate, the connecting column penetrates through the limiting plate and the top of the connecting column extends to the inner cavity of the liquid storage shell, the top of the connecting column is fixedly connected with a piston plate II which is connected with the inner wall of the liquid storage shell in a sliding way, a spring II is arranged between the bottom of the piston plate II and the top of the limiting plate, hydraulic oil is stored above the inner cavity of the liquid storage shell relative to the piston plate II, a liquid conveying pipe is arranged at the top of the liquid storage shell, and one end, far away from the liquid storage shell, of the liquid conveying pipe is communicated with the right end of the valve body.
S1: the pressure intensity of the deep water position is monitored through the pressure monitoring mechanism, and the hydraulic oil in the pressure monitoring mechanism is compressed by the deep water pressure intensity to enter the inner cavity of the liquid inlet valve;
s2: the valve core of the inner cavity of the liquid inlet valve is opened by utilizing the pressure of the hydraulic oil entering the inner cavity of the liquid inlet valve, so that the hydraulic oil is led into the inner cavity of the sealing mechanism to realize the balance between the oil pressure of the inner cavity of the sealing mechanism and the external pressure;
s3, driving the rack to move by the thrust generated when the liquid inlet valve is opened, further controlling the opening of the opening mechanism, and preventing the phenomenon that the sealing shell is tilted with the connecting positions of the upper sealing gasket and the lower sealing gasket and the sealing performance is reduced due to the fact that the middle of the sealing shell is sunken inwards as the external water pressure is too high;
s4: the liquid pumping mechanism is driven to pump liquid through the action of the opening mechanism during opening, so that the upper air bag and the lower air bag expand, and the sealing performance of the connecting position of the rotating shaft and the upper sealing gasket and the lower sealing gasket is enhanced.
Compared with the prior art, the invention has the following beneficial effects:
the device is placed in water, the lifting device drives the lifting rod to lift to a required pile foundation construction position, and then the pile foundation shell and the driving motor are driven to lift;
because the water pressure at the deep water position is large, in order to balance the oil pressure in the inner cavity of the sealing mechanism, when the water pressure is larger than the hydraulic pressure intensity in the liquid storage shell, water flow enters the inner cavity of the monitoring shell from the position of the filter screen, at the moment, the elastic film is stressed and deformed, and then the push plate is pushed to overcome the elastic potential energy of the second spring and move upwards under the hydraulic action of the inner cavity of the liquid storage shell, so that the second spring is stretched, and meanwhile, the second piston plate is driven to slide upwards in the inner cavity of the liquid storage shell, and further, hydraulic oil in the inner cavity of the liquid storage shell is led into the inner cavity of the valve body through a liquid conveying pipe;
after hydraulic oil enters from the right end of the valve body, the hydraulic pressure of the right end of the valve body is larger than that of the left end of the valve body, the valve core is pushed to move leftwards, meanwhile, the first spring is compressed, the hydraulic oil is led into the communicating pipe from the liquid permeable hole, the hydraulic oil is led into the inner cavity of the sealing shell through the communicating pipe, the inner cavity of the sealing shell is pressurized, and the phenomena that the lower sealing gasket is stressed and deformed and muddy water permeates into the inner cavity of the sealing shell due to overlarge external water pressure are prevented;
meanwhile, when the valve core moves leftwards, the rack is pushed to synchronously move leftwards, so that the coupling gear meshed with the valve core is driven to rotate, the fluted disc meshed with the coupling gear is driven to rotate, under the guiding action of the chute, the guide rod is subjected to extrusion force of the inner wall of the chute at the moment, the slide rod is driven to slide outwards on the inner wall of the chute, the arc-shaped supporting plate is driven to expand outwards, the arc-shaped supporting plate stops expanding to the inner wall of the sealing shell, the supporting action on the inner wall of the sealing shell is realized, the phenomenon that the middle of the sealing shell is inwards sunken to cause the connection position of the sealing shell, the upper sealing gasket and the lower sealing gasket to tilt and the sealing performance is reduced is avoided;
simultaneously, when the arc fagging outwards removed, can drive the pull rod outwards removal simultaneously, and then the pulling piston board slides at drawing liquid casing inner chamber, inhales the hydraulic oil of seal housing inner chamber to supreme gasbag and lower gasbag inner chamber through two sets of check valve effects, goes up gasbag and lower gasbag inflation this moment, fills the shutoff to the sealed hookup location of countershaft and upper seal pad and lower seal pad, improves the sealing performance of device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural view of a sealing mechanism according to the present invention;
FIG. 4 is a schematic view of the expanding mechanism of the present invention;
FIG. 5 is a schematic view of the structure of the opening frame of the present invention;
FIG. 6 is a schematic structural view of a fluid pumping mechanism according to the present invention;
FIG. 7 is a schematic view of the structure of the liquid inlet valve of the present invention;
fig. 8 is a schematic structural diagram of the pressure monitoring mechanism of the present invention.
In the figure: 1. a pile foundation shell; 2. a lifting rod; 3. a drill bit; 4. a drive motor; 5. a sealing mechanism; 6. a rotating shaft; 7. a liquid inlet valve; 8. a pressure monitoring mechanism; 9. sealing the housing; 10. an upper seal gasket; 11. a lower seal gasket; 12. a distraction mechanism; 13. an upper air bag; 14. a lower air bag; 15. a liquid pumping mechanism; 16. a fluted disc; 17. a chute; 18. a coupling gear; 19. an opening frame; 20. a collar; 21. a chute; 22. a slide bar; 23. an arc-shaped supporting plate; 24. a pull rod; 25. a guide bar; 26. a liquid pumping shell; 27. a piston plate I; 28. a valve body; 29. mounting a plate; 30. a push rod; 31. a liquid permeable hole; 32. a valve core; 33. a first spring; 34. a communicating pipe; 35. a rack; 36. monitoring the housing; 37. a filter screen; 38. an elastic film; 39. pushing the plate; 40. a limiting plate; 41. connecting columns; 42. a liquid storage housing; 43. a second piston plate; 44. a second spring; 45. an infusion tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: the utility model provides an oil pressure balancing unit and application method for diving equipment, including pile foundation shell 1, pile foundation shell 1's top fixedly connected with lifter 2, the external elevating gear in top of lifter 2, lateral wall fixedly connected with driving motor 4 on the inner chamber of pile foundation shell 1, the bottom axle center position of driving motor 4 rotates and is connected with pivot 6, the bottom fixedly connected with drill bit 3 of pivot 6, the bottom of driving motor 4 relative shaft 6's outer wall fixed mounting has sealing mechanism 5, through setting up sealing mechanism 5, be favorable to the inside oil pressure balance of adjusting device, the sealed effect of reinforcing means.
As shown in fig. 3, the sealing mechanism 5 includes a sealing housing 9, an upper sealing gasket 10 is fixedly connected to the top of the sealing housing 9, the top of the upper sealing gasket 10 is fixedly connected to the bottom of the driving motor 4, a lower sealing gasket 11 is fixedly connected to the bottom of the sealing housing 9, the outer wall of the rotating shaft 6 penetrates through the upper sealing gasket 10 and the lower sealing gasket 11 and is movably connected to the middle positions of the upper sealing gasket 10 and the lower sealing gasket 11, and an opening mechanism 12 is movably connected to the outer wall of the inner cavity of the sealing housing 9 relative to the rotating shaft 6.
By arranging the upper sealing gasket 10 and the lower sealing gasket 11, the sealing effect between the rotating shaft 6 and the driving motor 4 is effectively improved.
As shown in fig. 4, the spreading mechanism 12 includes a fluted disc 16, an inner wall of the fluted disc 16 is movably connected to an outer wall of the rotating shaft 6, the fluted disc 16 does not rotate along with the rotating shaft 6, an upper surface of the fluted disc 16 is provided with four groups of inclined slots 17, the four groups of inclined slots 17 are uniformly distributed on the upper surface of the fluted disc 16, a coupling gear 18 is engaged and connected to a front surface of the fluted disc 16, and a spreading frame 19 is movably connected to a lower portion of the fluted disc 16.
When the valve core 32 moves leftwards, the rack 35 is pushed to synchronously move leftwards, so that the coupling gear 18 meshed with the rack is driven to rotate, and meanwhile, the fluted disc 16 meshed with the coupling gear 18 is driven to rotate.
As shown in fig. 5, the opening frame 19 includes a sleeve ring 20, the inner wall of the sleeve ring 20 is sleeved on the outer wall of the rotating shaft 6, and the sleeve ring 20 does not rotate along with the rotating shaft 6, the bottom of the sleeve ring 20 is fixedly connected with the inner wall of the sealing shell 9, the outer wall of the sleeve ring 20 is fixedly connected with a sliding chute 21, the sliding chute 21 is provided with four groups, and the sliding chute is uniformly distributed on the outer wall of the sleeve ring 20, the inner cavity of the sliding chute 21 is slidably connected with a sliding rod 22, the top of the sliding rod 22 is fixedly connected with a guide rod 25 matched with the chute 17, one end of the sleeve ring 20 is far away from the sliding rod 22 is fixedly connected with an arc supporting plate 23, the top of the arc supporting plate 23 and the bottom of the middle position are fixedly connected with a pull rod 24, and the pull rod 24 is far away from one end fixedly connected with a liquid pumping mechanism 15 of the opening frame 19.
Under chute 17 guide effect, guide bar 25 receives the extrusion force of chute 17 inner wall this moment, and then drive slide bar 22 and outwards slide in spout 21 inner wall, and then drive arc fagging 23 and outwards expand, stop when arc fagging 23 expands to sealed casing 9 inner wall, realize the supporting role to sealed casing 9 inner wall, prevent that external water pressure is too big, cause inside sunken in the middle of the sealed casing 9, lead to sealed casing 9 and the perk of the sealed pad 10 of upper seal and the sealed 11 hookup location of lower seal, the phenomenon that the leakproofness reduces.
As shown in fig. 3 and 6, the pumping mechanism 15 includes a pumping housing 26, a first piston plate 27 is slidably connected to an inner cavity of the pumping housing 26, one end of a pull rod 24 away from the spreading frame 19 is fixedly connected to an outer wall of the first piston plate 27, the pull rod 24 is in an "L" shape, a one-way valve communicated with the inner cavity of the pumping housing 26 is disposed on a side wall of the pumping housing 26 close to the rotating shaft 6, a one-way valve communicated with the outer cavity of the pumping housing 26 is disposed at a middle position of a top of the pumping housing 26, an upper air bag 13 is fixedly connected to the top of the upper pumping housing 26, the top of the upper air bag 13 is fixedly connected to a lower side wall of the upper gasket 10, a lower air bag 14 is fixedly connected to the bottom of the lower air bag 26, the bottom of the lower air bag 14 is fixedly connected to an upper side wall of the lower gasket 11, and a liquid inlet valve 7 for adjusting oil pressure balance is fixedly connected to a right side wall of the sealing housing 9.
When the arc-shaped supporting plate 23 moves outwards, the pull rod 24 is driven to move outwards at the same time, and then the piston plate 27 is pulled to slide in the inner cavity of the liquid pumping shell 26, hydraulic oil in the inner cavity of the sealing shell 9 is sucked into the inner cavities of the upper air bag 13 and the lower air bag 14 under the action of the two sets of one-way valves, the upper air bag 13 and the lower air bag 14 expand at the moment, the connecting positions of the rotating shaft 6 and the upper sealing gasket 10 as well as the lower sealing gasket 11 are filled and sealed, and the sealing performance of the device is improved.
As shown in fig. 7, the liquid inlet valve 7 includes a valve body 28, a mounting plate 29 is fixedly connected to the left side of an inner cavity of the valve body 28, a push rod 30 is movably connected to an inner wall of the mounting plate 29, a valve core 32 is fixedly connected to the right end of the push rod 30, a liquid permeable hole 31 is formed in an outer wall of the valve core 32, a first spring 33 is arranged between a left side wall of the valve core 32 and a right side wall of the mounting plate 29, a communicating pipe 34 is fixedly connected to the left side wall of the valve body 28, the left end of the communicating pipe 34 penetrates through the inner cavity of the seal housing 9, a rack 35 is fixedly connected to the left side wall of the push rod 30, the rack 35 extends to the inner cavity of the seal housing 9 and is meshed with a surface of the coupling gear 18 away from the fluted disc 16, and a pressure monitoring mechanism 8 for monitoring the deepwater pressure is fixedly connected to the right side wall of the valve body 28.
Because the water pressure at the deep water position is high, in order to balance the oil pressure in the inner cavity of the sealing mechanism 5, when the water pressure is higher than the hydraulic pressure inside the liquid storage shell 42, water flow enters the inner cavity of the monitoring shell 36 from the position of the filter screen 37, at the moment, the elastic film 38 is deformed under stress, and then the push plate 39 is pushed to overcome the elastic potential energy of the second spring 44 and the hydraulic action of the inner cavity of the liquid storage shell 42 to move upwards, so that the second spring 44 is stretched, and meanwhile, the second piston plate 43 is driven to slide upwards in the inner cavity of the liquid storage shell 42, and further, the hydraulic oil in the inner cavity of the liquid storage shell 42 is led into the inner cavity of the valve body 28 through the infusion tube 45.
As shown in fig. 8, the pressure monitoring mechanism 8 includes a monitoring housing 36, a filter screen 37 is disposed on a lower side wall of the monitoring housing 36, a liquid storage housing 42 is fixedly connected to a top of the monitoring housing 36, elastic films 38 are fixedly connected to left and right ends of an inner wall of the monitoring housing 36, a push plate 39 is fixedly connected to a top middle position of the elastic films 38, a connection post 41 is fixedly connected to a top of the push plate 39, a limit plate 40 is fixedly connected to a top of an inner cavity of the monitoring housing 36, the connection post 41 penetrates through the limit plate 40, and a top of the connection post extends to an inner cavity of the liquid storage housing 42, a piston plate 43 is fixedly connected to a top of the connection post 41 and slidably connected to an inner wall of the liquid storage housing 42, a spring 44 is disposed between a bottom of the piston plate 43 and a top of the limit plate 40, hydraulic oil is stored in the inner cavity of the liquid storage housing 42 above the piston plate 43, and a liquid transport tube 45 is disposed at the top of the liquid storage housing 42, the end of the infusion tube 45 remote from the reservoir housing 42 communicates with the right end of the valve body 28.
After hydraulic oil enters from the right end of the valve body 28, the hydraulic pressure of the right end of the valve body 28 is greater than the hydraulic pressure of the left end of the valve body, the valve core 32 is further pushed to move leftwards, meanwhile, the first spring 33 is compressed, the hydraulic oil is guided into the communicating pipe 34 from the position of the liquid permeating hole 31, the hydraulic oil is introduced into the inner cavity of the sealing shell 9 through the communicating pipe 34, the inner cavity of the sealing shell 9 is pressurized, and the phenomena that the external water pressure is too high, the lower sealing gasket 11 is stressed to deform, and muddy water permeates into the inner cavity of the sealing shell 9 are prevented.
The working principle is as follows: when the oil pressure balancing device for the diving equipment and the using method thereof are used, the device is put into water, the lifting device drives the lifting rod 2 to lift to a required pile foundation construction position, and further drives the lifting of the pile foundation shell 1 and the driving motor 4, when drilling is required, the driving motor 4 is started, the driving motor 4 rotates to drive the rotating shaft 6 to rotate, and further drives the drill bit 3 to rotate, so that the drilling work of the pile foundation is realized;
because the water pressure at the deep water position is high, in order to balance the oil pressure in the inner cavity of the sealing mechanism 5, when the water pressure is higher than the hydraulic pressure inside the liquid storage shell 42, water flow enters the inner cavity of the monitoring shell 36 from the position of the filter screen 37, at the moment, the elastic film 38 is deformed under stress, and then the push plate 39 is pushed to overcome the elastic potential energy of the second spring 44 and the hydraulic action of the inner cavity of the liquid storage shell 42 to move upwards, so that the second spring 44 is stretched, and meanwhile, the second piston plate 43 is driven to slide upwards in the inner cavity of the liquid storage shell 42, and further, the hydraulic oil in the inner cavity of the liquid storage shell 42 is led into the inner cavity of the valve body 28 through the infusion tube 45;
after hydraulic oil enters from the right end of the valve body 28, the hydraulic pressure of the right end of the valve body 28 is greater than the hydraulic pressure of the left end of the valve body, so that the valve core 32 is pushed to move leftwards, meanwhile, the first spring 33 is compressed, the hydraulic oil is led into the communicating pipe 34 from the position of the liquid permeating hole 31, the hydraulic oil is led into the inner cavity of the sealed shell 9 through the communicating pipe 34, the inner cavity of the sealed shell 9 is pressurized, and the phenomena that the lower sealing gasket 11 is stressed to deform and muddy water permeates into the inner cavity of the sealed shell 9 due to the fact that the external water pressure is too high are prevented;
meanwhile, when the valve core 32 moves leftwards, the rack 35 is pushed to synchronously move leftwards, so that the coupling gear 18 meshed with the valve core is driven to rotate, the fluted disc 16 meshed with the coupling gear 18 is driven to rotate, under the guiding action of the chute 17, the guide rod 25 is subjected to the extrusion force of the inner wall of the chute 17 at the moment, so that the slide rod 22 is driven to slide outwards on the inner wall of the chute 21, the arc-shaped support plate 23 is driven to expand outwards, the arc-shaped support plate 23 stops when expanding to the inner wall of the sealing shell 9, the supporting action on the inner wall of the sealing shell 9 is realized, the phenomenon that the middle of the sealing shell 9 is sunken inwards to cause the connection positions of the sealing shell 9, the upper sealing gasket 10 and the lower sealing gasket 11 to tilt, and the sealing performance is reduced is avoided;
meanwhile, when the arc supporting plate 23 moves outwards, the pull rod 24 is driven to move outwards at the same time, and then the piston plate 27 is pulled to slide in the inner cavity of the liquid pumping shell 26, hydraulic oil in the inner cavity of the sealing shell 9 is sucked into the inner cavities of the upper air bag 13 and the lower air bag 14 under the action of the two sets of one-way valves, at the moment, the upper air bag 13 and the lower air bag 14 expand, the connecting positions of the rotating shaft 6 and the upper sealing gasket 10 as well as the lower sealing gasket 11 are filled and blocked, and the sealing performance of the device is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides an oil pressure balancing unit for diving equipment, includes pile foundation shell (1), its characterized in that: the lifting device is characterized in that a lifting rod (2) is fixedly connected to the top of the pile foundation shell (1), a lifting device is externally connected to the top of the lifting rod (2), a driving motor (4) is fixedly connected to the upper side wall of an inner cavity of the pile foundation shell (1), a rotating shaft (6) is rotatably connected to the bottom axis position of the driving motor (4), a drill bit (3) is fixedly connected to the bottom of the rotating shaft (6), and a sealing mechanism (5) is fixedly mounted at the bottom of the driving motor (4) relative to the outer wall of the rotating shaft (6); the sealing mechanism (5) comprises a sealing shell (9), the top of the sealing shell (9) is fixedly connected with an upper sealing gasket (10), the top of the upper sealing gasket (10) is fixedly connected with the bottom of the driving motor (4), the bottom of the sealing shell (9) is fixedly connected with a lower sealing gasket (11), the outer wall of the rotating shaft (6) penetrates through the upper sealing gasket (10) and the lower sealing gasket (11) and is movably connected with the middle positions of the upper sealing gasket (10) and the lower sealing gasket (11), and the inner cavity of the sealing shell (9) is movably connected with a spreading mechanism (12) relative to the outer wall of the rotating shaft (6); the opening mechanism (12) comprises a fluted disc (16), the inner wall of the fluted disc (16) is movably connected with the outer wall of the rotating shaft (6), the fluted disc (16) does not rotate along with the rotating shaft (6) and rotates, the upper surface of the fluted disc (16) is provided with four groups of inclined grooves (17), the four groups of inclined grooves (17) are uniformly distributed on the upper surface of the fluted disc (16), the front surface of the fluted disc (16) is connected with a coupling gear (18) in a meshing manner, and an opening frame (19) is movably connected below the fluted disc (16);
the opening frame (19) comprises a lantern ring (20), the inner wall of the lantern ring (20) is sleeved on the outer wall of the rotating shaft (6), and does not rotate along with the rotation of the rotating shaft (6), the bottom of the lantern ring (20) is fixedly connected with the inner wall of the sealing shell (9), the outer wall of the lantern ring (20) is fixedly connected with four sliding chutes (21), the four sliding chutes (21) are provided with four groups, and are evenly distributed on the outer wall of the lantern ring (20), the inner cavity of the sliding groove (21) is connected with a sliding rod (22) in a sliding way, the top of the sliding rod (22) is fixedly connected with a guide rod (25) matched with the inclined groove (17), one end of the slide bar (22) far away from the lantern ring (20) is fixedly connected with an arc-shaped supporting plate (23), the middle positions of the top and the bottom of the arc-shaped supporting plate (23) are fixedly connected with pull rods (24), one end of the pull rod (24) far away from the opening frame (19) is fixedly connected with a liquid pumping mechanism (15);
the liquid pumping mechanism (15) comprises a liquid pumping shell (26), a piston plate I (27) is connected to the inner cavity of the liquid pumping shell (26) in a sliding mode, one end, far away from the opening frame (19), of the pull rod (24) is fixedly connected with the outer wall of the piston plate I (27), the pull rod (24) is of an L-shaped structure, a one-way valve communicated with the inner cavity of the liquid pumping shell (26) is arranged on one side wall, close to the rotating shaft (6), of the liquid pumping shell (26), a one-way valve communicated with the outer cavity of the liquid pumping shell (26) is arranged in the middle of the top of the liquid pumping shell (26), an upper air bag (13) is fixedly connected to the top of the liquid pumping shell (26) at the upside, the top of the upper air bag (13) is fixedly connected with the lower side wall of the upper sealing gasket (10), a lower air bag (14) is fixedly connected to the bottom of the liquid pumping shell (26), and the upper side wall of the lower air bag (14) is fixedly connected with the lower sealing gasket (11), and the right side wall of the sealing shell (9) is fixedly connected with a liquid inlet valve (7) for adjusting oil pressure balance.
2. The oil pressure balancing device for diving equipment of claim 1, wherein: the liquid inlet valve (7) comprises a valve body (28), the left side of the inner cavity of the valve body (28) is fixedly connected with a mounting plate (29), the inner wall of the mounting plate (29) is movably connected with a push rod (30), the right end of the push rod (30) is fixedly connected with a valve core (32), a liquid permeable hole (31) is arranged on the outer wall of the valve core (32), a first spring (33) is arranged between the left side wall of the valve core (32) and the right side wall of the mounting plate (29), a communicating pipe (34) is fixedly connected to the left side wall of the valve body (28), the left end of the communicating pipe (34) penetrates through the inner cavity of the sealed shell (9), the left side wall of the push rod (30) is fixedly connected with a rack (35), the rack (35) extends to the inner cavity of the sealing shell (9), and the valve body is meshed and connected with one surface of the coupling gear (18) far away from the fluted disc (16), and the right side wall of the valve body (28) is fixedly connected with a pressure monitoring mechanism (8) for monitoring the deepwater pressure.
3. The oil pressure balancing device for diving equipment of claim 2, wherein: the pressure monitoring mechanism (8) comprises a monitoring shell (36), a filter screen (37) is arranged on the lower side wall of the monitoring shell (36), the top of the monitoring shell (36) is fixedly connected with a liquid storage shell (42), two ends of the inner wall of the monitoring shell (36) are fixedly connected with elastic films (38), a push plate (39) is fixedly connected with the middle position of the top of the elastic films (38), a connecting column (41) is fixedly connected with the top of the push plate (39), a limiting plate (40) is fixedly connected with the top of the inner cavity of the monitoring shell (36), the connecting column (41) penetrates through the limiting plate (40) and the top of the connecting column extends to the inner cavity of the liquid storage shell (42), a piston plate II (43) is fixedly connected with the top of the connecting column (41) and slidably connected with the inner wall of the liquid storage shell (42), and a spring II (44) is arranged between the bottom of the piston plate II (43) and the top of the limiting plate (40), hydraulic oil is stored above the inner cavity of the liquid storage shell (42) relative to the piston plate II (43), an infusion tube (45) is arranged at the top of the liquid storage shell (42), and one end, far away from the liquid storage shell (42), of the infusion tube (45) is communicated with the right end of the valve body (28).
4. Use of an oil pressure balancing device for diving equipment according to claim 2, characterized in that: the using method comprises the following steps:
s1: the pressure at the deep water position is monitored by the pressure monitoring mechanism (8), and the deep water pressure is utilized to compress hydraulic oil in the pressure monitoring mechanism (8) to enter the inner cavity of the liquid inlet valve (7);
s2: the valve core (32) of the inner cavity of the liquid inlet valve (7) is opened by utilizing the pressure of the hydraulic oil entering the inner cavity of the liquid inlet valve (7), so that the hydraulic oil is introduced into the inner cavity of the sealing mechanism (5) to realize the balance between the oil pressure of the inner cavity of the sealing mechanism (5) and the external pressure;
s3, driving the rack (35) to move by thrust generated when the liquid inlet valve (7) is opened, further controlling the opening of the opening mechanism (12), and preventing the phenomenon that the connection position of the sealing shell (9), the upper sealing gasket (10) and the lower sealing gasket (11) tilts and the sealing performance is reduced due to the fact that the middle of the sealing shell (9) is sunken inwards as the external water pressure is too high;
s4: the liquid pumping mechanism (15) is driven to pump liquid through the action of the opening mechanism (12) during opening, so that the upper air bag (13) and the lower air bag (14) expand, and the sealing performance of the connecting position of the rotating shaft (6) and the upper sealing gasket (10) and the lower sealing gasket (11) is enhanced.
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CN2821226Y (en) * 2006-03-27 2006-09-27 齐齐哈尔和平工业(集团)有限责任公司 Pressure balance device of electric submersible screw pump
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