WO2019205689A1 - 一种用于驱动阀门开合的执行系统 - Google Patents

一种用于驱动阀门开合的执行系统 Download PDF

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Publication number
WO2019205689A1
WO2019205689A1 PCT/CN2018/123643 CN2018123643W WO2019205689A1 WO 2019205689 A1 WO2019205689 A1 WO 2019205689A1 CN 2018123643 W CN2018123643 W CN 2018123643W WO 2019205689 A1 WO2019205689 A1 WO 2019205689A1
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WO
WIPO (PCT)
Prior art keywords
driving
wall surface
housing
rotating shaft
transition
Prior art date
Application number
PCT/CN2018/123643
Other languages
English (en)
French (fr)
Inventor
包月强
陈小平
王正文
Original Assignee
苏州纽威阀门股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州纽威阀门股份有限公司 filed Critical 苏州纽威阀门股份有限公司
Priority to EP18916634.1A priority Critical patent/EP3617572A4/en
Priority to US16/618,193 priority patent/US11287055B2/en
Publication of WO2019205689A1 publication Critical patent/WO2019205689A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/02—Valve arrangements for boreholes or wells in well heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/04—Arrangements for preventing erosion, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
    • F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F16K37/0016—Mechanical means having a graduated scale
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for measuring valve parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means

Definitions

  • the invention relates to the technical field of valves, and in particular to an execution system for driving valve opening and closing.
  • underwater valves and valve actuators In marine underwater oil and gas, oil production and production equipment, underwater valves and valve actuators are usually used.
  • the actuator drives the underwater valve to open the valve.
  • the underwater valve and its actuator require long cycles. The maintenance-free use of work requirements, therefore, the high reliability of the underwater valve and its actuators become the key to the design of the underwater valve device.
  • Chinese Patent Publication No. CN106481830A discloses a high-reliability hydraulic underwater valve including a connecting rod, a sleeve, a support base, a piston rod and a valve stem which are connected in order from top to bottom in the vertical direction.
  • the piston rod has a stem portion and a piston head fixedly coupled to the bottom of the shaft.
  • the underwater valve of the structure is provided with two driving modes of the opening and closing valve, one is to drive the rod through the mechanical transmission, sequentially drive the sleeve and the support base, thereby controlling the up and down movement of the piston rod, thereby controlling the opening and closing of the valve;
  • One is hydraulically driven and controlled by a hydraulic actuator to drive the piston rod to control the opening and closing of the valve.
  • the hydraulic actuator includes a hydraulic cylinder, a hydraulic source inlet, and a hydraulic source outlet.
  • the side wall surface of the piston head is sealed and sliding in the vertical direction on the inner wall surface of the hydraulic cylinder, and the top surface of the piston head forms a sealed cavity with the hydraulic cylinder, and flows or flows out through the hydraulic medium that controls the inlet of the hydraulic source and the outlet of the hydraulic source.
  • the cavity is sealed to control the lifting and lowering of the piston head and the valve stem to control the opening or closing of the valve.
  • the technical problem to be solved by the present invention is that the prior art execution system for driving the opening and closing of the valve causes the valve stem to move out of position when the valve stem is driven to move, so that the reliability of the valve is low.
  • an execution system for driving valve opening and closing comprising:
  • a first housing having a first inner cavity; a sidewall of the first housing having at least one medium passage communicating with the first inner cavity;
  • a linkage block having a peripheral wall surface slidably sealingly disposed on a wall surface of the first inner cavity, and dividing the first inner cavity into an upper cavity located above and a lower cavity located below; the medium passage Communicating with the upper cavity;
  • a first driving rod whose bottom is sequentially sealed and slidably passed through the top of the first casing and the linkage block and protrudes into the lower cavity;
  • the outer peripheral wall surface of the bottom of the first driving rod has a horizontally extending extending portion, the limiting portion is configured to block the linkage block in a region between the limiting portion and a top portion of the first housing;
  • the first driving rod a valve stem for connecting the valve at the bottom;
  • a driving mechanism is disposed on the top of the first driving rod for driving the first driving rod to perform lifting movement.
  • the above-described execution system for driving valve opening and closing the drive mechanism comprises
  • a conversion assembly having a bottom fixed on a top of the first drive rod and a top portion connected to an outer wall surface of the first rotating shaft; the conversion assembly for converting a rotational motion of the first rotating shaft into Straight up and down movement.
  • the above-described execution system for driving valve opening and closing the conversion assembly includes
  • first transition sleeve threadedly fitted to an outer wall surface of the first rotating shaft; a second transition sleeve fixed to a top of the first driving rod;
  • the bottom of the first transition sleeve abuts against the top of the second transition sleeve
  • the bottom of the first rotating shaft extends into the inner cavity of the second transition sleeve and reserves a required distance from the top of the first driving rod.
  • the above-described execution system for driving valve opening and closing further comprising a first cylinder fixedly disposed with respect to the first housing and located above the first driving rod; The first cylinder is sleeved outside the first transition sleeve and the second transition sleeve.
  • the driving mechanism further comprises
  • first guiding chute on any one of the outer wall surface of the first transition sleeve and the inner wall surface of the first cylinder, and the outer wall surface of the first transition sleeve a first guiding member on another wall surface of the inner wall surface of the first cylinder, the first guiding members are inserted into the first guiding sliding slot in one-to-one correspondence, and the first guiding sliding slot is vertically Straight or spiral extending; and/or
  • the above-mentioned execution system for driving the opening and closing of the valve further comprises a support fixed on the top of the first drive rod; the support is located outside the first cylinder, and the support is a space between the inner wall surface and the outer wall surface of the second transition sleeve for inserting the first cylinder;
  • At least one elastic member disposed vertically between the holder and an outer wall surface of the first housing, the elastic member applying a biasing force to the holder in a direction toward the first rotation axis .
  • the driving mechanism further comprises
  • a second rotating shaft disposed on the first rotating shaft, the top of the second rotating shaft being rotated by the driving of the first driver; and the bottom of the second rotating shaft and the first rotation a speed reduction mechanism that is coupled to the top of the shaft;
  • the speed reduction mechanism includes a second gear coaxially sleeved on the bottom of the second rotating shaft, and a first gear fixedly coupled to the top of the first driving shaft, and an outer wall surface of the second gear The outer wall surface of the first gear is engaged.
  • the speed reduction mechanism further includes a first transition wheel located below the second gear and the first gear, the first transition wheel being sleeved in the a top of the first rotating shaft; a top of the first rotating shaft is coupled to the first gear through the first transition wheel.
  • the above-mentioned execution system for driving the opening and closing of the valve further comprises a second housing sleeved on the outer wall surface of the first housing;
  • a mounting cavity is defined between the second housing and the first housing, and the first driving rod and the driving mechanism are both mounted in the mounting cavity;
  • the execution system also includes a balancer for adjusting the pressure in the installation chamber equal to the pressure in the water environment in which the valve is located.
  • the first opening of the second housing is provided with a first opening
  • the balancer includes
  • a third housing sealingly mounted on a top of the second housing; the third housing having a second inner cavity, the bottom of the third housing being open with a second communicating with the first opening a communication hole is formed in a side wall and/or a top portion of the third casing, and when a hydraulic medium of a predetermined height is placed in the installation cavity, the communication hole is located in the hydraulic pressure of the installation cavity Above the liquid level of the medium; and
  • the conducting tube located outside the third housing, the conducting tube having a connecting portion sealedly mounted on the communication hole, and a lead-in section sealed on a bottom portion of the connecting portion, the lead-in section The bottom extends downward.
  • the connecting section and the lead-in section are made of different and anti-corrosive metal materials
  • the conduit further includes a transition section sealingly connecting the bottom of the connecting section to the top of the lead-in section, the transition section being made of a non-metallic and corrosion resistant material.
  • An execution system for driving a valve opening and closing comprising a first housing, a linkage block, a first drive rod and a drive mechanism.
  • the first housing has a first inner cavity; the side wall of the first housing is provided with at least one medium passage communicating with the first inner cavity; and the linkage block has a peripheral wall surface slidably sealed a wall surface of the first inner cavity, and dividing the first inner cavity into an upper cavity located above and a lower cavity located below; the medium channel is in communication with the upper cavity; the first driving rod
  • the bottom portion is sequentially sealed and slidably passed through the top of the first casing and the linkage block and protrudes into the lower cavity;
  • the outer peripheral wall surface of the bottom of the first drive rod has a horizontally outwardly extending a limiting portion for blocking the linkage block in a region between the limiting portion and a top portion of the first housing; a bottom portion of the first driving rod is used for connecting a valve a valve stem; a drive mechanism is disposed
  • the execution system of the structure for driving the opening and closing of the valve when the hydraulic medium drives the valve stem to move, the hydraulic medium passes into the upper cavity through the medium passage, and drives the linkage block to move downward under the driving force of the medium, and the bottom of the linkage block Abutting the limiting portion of the first driving rod, so that the first driving rod and the linkage block perform synchronous movement; when mechanically driving, since the first driving rod is slidably disposed relative to the linkage block, the linkage block is not subjected to the driving force. The positional change will be maintained in the original position, and when the driving mechanism drives the first driving rod to perform the lifting movement, the linkage block is separated from the limiting portion of the first driving rod, and the first driving rod does not move when the lifting movement is performed.
  • the linkage block performs the lifting movement, thereby reducing the degree of friction between the outer peripheral side wall surface of the linkage block and the inner surface of the first casing, thereby reducing the probability of creating a gap between the side wall of the linkage block and the inner wall surface of the first casing Therefore, when the hydraulic drive is driven, the hydraulic medium controls the movement position of the first drive rod, so that the first drive rod drives the valve stem to move into position, thereby realizing the positive of the valve. On or off, to improve the reliability of the control system performs the opening and closing of the valve.
  • the present invention provides an actuator for driving valve opening and closing, the drive mechanism including a first actuator, a first rotating shaft, and a conversion assembly.
  • the top of the first rotating shaft is rotated by the driving of the first driver;
  • the bottom of the converting assembly is fixed on the top of the first driving rod, and the top portion thereof is connected to the outer wall surface of the first rotating shaft;
  • the conversion assembly is configured to convert the rotational motion of the first rotating shaft into a linear lifting motion, so that the first rotating shaft drives the first driving rod to drive the valve stem to perform the lifting motion.
  • the conversion assembly includes a first transition sleeve threadedly fitted onto an outer wall surface of the first rotating shaft; a second transition sleeve fixed on a top of the first driving rod; the first transition sleeve a bottom portion abuts against the top of the second transition sleeve; a bottom of the first rotating shaft extends into the inner cavity of the second transition sleeve and is reserved between the top of the first drive rod Required spacing.
  • the present invention provides an actuator for driving a valve opening and closing, the first cylinder being sleeved outside the first transition sleeve and the second transition sleeve.
  • the driving mechanism further includes at least one first guiding chute formed on one of the outer wall surface of the first transition sleeve and the inner wall surface of the first cylinder, and disposed in the first transition a first guiding member on an outer wall surface of the sleeve and another wall surface of the first cylindrical body, the first guiding member is inserted into the first guiding sliding slot in a one-to-one correspondence, the first guiding The chute extends in a straight line or spiral in a vertical direction.
  • the first guiding member is inserted in one-to-one correspondence with the first guiding chute, and the guiding direction of the first guiding chute has a sub-direction extending in the vertical direction, thereby It is ensured that the first transition sleeve has a partial displacement in the vertical direction, and plays a guiding role for the lifting movement of the first transition sleeve.
  • the embodiment of the present invention for driving a valve opening and closing further comprising a seat fixed to a top of the first drive rod; and vertically disposed at the seat and the first housing At least one elastic member between the outer wall faces, the elastic member applying a biasing force to the support in a direction toward the first axis of rotation.
  • the execution system of the structure for driving the opening and closing of the valve whether the hydraulic drive medium or mechanically drives the first drive rod to drive the valve stem to perform the downward movement, when the valve stem moves to the lowest point, the corresponding valve is in the open state, and the elastic member is at The compressed state; when the valve needs to be opened, the valve stem and the first driving rod need to be driven to move upward, and when the hydraulic driving force and the mechanical driving force acting on the first driving rod are cancelled, the elastic member releases the compression amount and drives the first The drive rod, stem and the support move upwards, allowing the valve to close quickly. Further providing a plurality of elastic members can further accelerate the quick closing of the valve. That is, when there is no other form of force, the elastic member drives and resets the support, the first drive rod and the second transition sleeve, thereby reliably closing the valve.
  • the present invention provides an actuator for driving a valve opening and closing, the speed reduction mechanism including a second gear coaxially sleeved on a bottom of the second rotating shaft, and fixed to a top of the first driving shaft The connected first gear, the outer wall surface of the second gear is engaged with the outer wall surface of the first gear.
  • the execution system of the structure for driving the opening and closing of the valve because the second gear is coaxially disposed with the second rotating shaft, the outer wall surface of the second gear meshes with the outer wall surface of the first gear, and thus the first gear is compared with the first gear
  • the two gears are located away from the first axis of rotation.
  • a first distance between the axis of rotation of the first gear and the axis of the second axis of rotation is greater than a second distance between the axis of the second gear and the axis of the second axis of rotation, and the speed of the second gear is coupled to the first gear
  • the rotation speed about the first rotation axis is faster, the rotation speed of the second rotation axis is faster than the rotation speed of the first rotation axis, and the purpose of decelerating the first rotation axis is achieved, thereby applying a torsional force to the second rotation axis, the first rotation axis
  • the torsional force output will be larger, thereby ensuring that the torque is sufficiently large to drive the first drive rod and the valve stem to move to the corresponding opening and closing positions, and the position is accurate, which ensures the reliability of the valve.
  • the present invention provides an actuator for driving valve opening and closing, the speed reduction mechanism further comprising a first transition wheel located below the second gear and the first gear, the first transition wheel being sleeved in the a top of the first rotating shaft; a top of the first rotating shaft is coupled to the first gear through the first transition wheel.
  • the execution system of the structure for driving the opening and closing of the valve the bottom end of the first transition wheel is sleeved on the end of the first gear, and the first gear and the second gear are used as the active member, the first transition wheel
  • the first transition wheel As a follower, under the driving of the driving member, only the action of rotating the first gear about the circumferential direction of the second rotating shaft is transmitted to the first rotating shaft, thereby ensuring that the first rotating shaft rotates and the first gear rotates first.
  • the present invention provides an actuator for driving a valve opening and closing, the execution system further comprising a balancer for adjusting an equal pressure in the installation chamber to an aqueous environment in which the valve is located, a first opening is formed on a top of the second housing;
  • the balancer includes a third housing that is sealingly mounted on a top of the second housing;
  • the third housing has a second inner cavity, the first a bottom of the three casing is open with a second opening communicating with the first opening;
  • a connecting hole is formed in a sidewall and/or a top of the third casing, and a preset height is placed in the mounting cavity
  • the communication hole is located above the liquid level of the hydraulic medium in the mounting cavity.
  • the execution system of the structure for driving the opening and closing of the valve the third casing is disposed on the top of the second casing, the seawater enters into the second inner cavity through the communication hole, and is filled with the preset hydraulic medium Cavity.
  • the seawater Under the working condition of the balancer, the seawater is in the upper position, the hydraulic medium is in the lower position relative to the seawater under the action of its own weight, and the seawater in the second inner cavity is in direct contact with the top surface of the hydraulic medium, with the second inner cavity and the installation cavity
  • the pressure in the body changes, and the hydraulic medium will rise or fall at the height position of the second inner cavity, thereby ensuring a balance between the pressure in the two chambers and the underwater pressure.
  • the seawater Under the sealing action of the hydraulic medium, the seawater will not mix with the hydraulic medium and enter the installation cavity, so that the execution system can operate normally, and the high reliability of the valve is ensured.
  • the present invention provides an actuator for driving a valve opening and closing, a conducting tube located outside the third housing, the conducting tube having a connecting portion sealingly mounted on the communication hole, and sealingly mounted on a lead-in section on the bottom of the connecting section, the bottom of the lead-in section extending downward.
  • the connecting section and the lead-in section are made of a different and corrosion-resistant metal material; the conducting tube further includes a transition section sealingly connecting the bottom of the connecting section to the top of the lead-in section, the transition The segments are made of non-metallic and corrosion resistant materials.
  • the lead-in section is made of a metal material and releases metal ions into the seawater, thereby preventing marine organisms from approaching the inlet, causing blockage of the inflow or outflow of seawater from the second inner cavity;
  • the transition section is set to prevent galvanic corrosion between the connecting section and the lead-in section, thereby increasing the service life of the valve balancer.
  • Embodiment 1 is a schematic structural view of an execution system for driving a valve opening and closing provided in Embodiment 1;
  • Figure 2 is a partially enlarged schematic view of the frame A of Figure 1;
  • FIG. 3 is a schematic structural view of a balancer in Embodiment 1;
  • Figure 4 is an enlarged schematic view showing the structure of the circle B in Figure 3;
  • FIG. 5 is a schematic structural view of a switch indicating device in Embodiment 1;
  • FIG. 6 is a schematic top plan view of an execution system for driving valve opening and closing provided in Embodiment 1;
  • 8-balancer 81-third housing; 811-bottom plate; 812-side plate; 813-upper cover; 814-communication hole; 815-second opening; 82-second inner cavity; 83-conducting pipe; 831-connecting section; 832-introduction section; 833-transition section; 84-plug head; 85-joint;
  • 9-switch indication mechanism 91-first transmission shaft; 92-second cylinder; 93-second transmission shaft; 94-indicator needle; 951-open indicator; 952-off indicator.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the embodiment provides an execution system for driving the opening and closing of the valve.
  • the first housing 1 , the second housing 7 , the linkage block 2 and the first driving rod 31 and the driving system are provided. mechanism.
  • the first housing 1 is internally provided with a first inner cavity; the linkage block 2 is disposed in the first inner cavity, and the outer peripheral wall surface of the linkage block 2 is slidably disposed on the wall surface of the first inner cavity, and the first inner portion is The cavity is divided into an upper cavity 111 located above and a lower cavity 112 located below; the second casing 7 is sleeved on the outer wall surface of the first casing 1 and is enclosed and mounted with the first casing 1 a cavity 71, a driving mechanism is disposed on the top of the first driving rod 31 for driving the first driving rod 31 for lifting movement, and the driving mechanism and the top end of the first driving rod 31 are both mounted in the mounting cavity 71, the first driving The bottom of the rod 31 is sequentially sealed and slidably passed through the top of the first housing 1 and the linkage block 2 and then into the lower chamber 112. The bottom of the first drive rod 31 is used to connect the valve stem of the valve.
  • two media passages communicating with the first inner cavity are provided along the side wall of the first housing 1 : a hydraulic inlet passage 12 and a hydraulic outlet passage 13 , and the medium passages are connected to the upper chamber 111 .
  • the medium flows into and out of the first inner cavity along the medium passage, and the medium in the first inner cavity applies a medium force in the vertical direction to the linkage block 2, and ensures that the medium force is greater than that of the elastic member 6 (mentioned later)
  • the linkage block 2 is driven by the combined force of the two to drive the valve stem to move downward and realize the opening of the valve.
  • the outer peripheral wall surface of the bottom of the first driving rod 31 has a horizontally outwardly extending limiting portion 311 for blocking the linkage block 2 between the limiting portion 311 and the top of the first housing 1 Therefore, when the medium flows into the first inner cavity, the linkage block 2 drives the first driving rod 31 to perform the lifting movement.
  • the driving mechanism includes a first rotating shaft 41, a second rotating shaft 43, a speed reducing mechanism, a first driver, and a conversion assembly.
  • the second rotating shaft 43 is disposed on the first rotating shaft 41.
  • the top of the second rotating shaft 43 is rotated by the driving of the first driver, thereby driving the first rotating shaft 41 to rotate about the axial direction thereof.
  • the second rotating shaft 43 is rotated.
  • a bottom portion of the conversion shaft is coupled to the top of the first rotating shaft 41;
  • the bottom of the conversion assembly is fixed on the top of the first driving rod 31, and the top portion thereof is connected to the outer wall surface of the first rotating shaft 41; the conversion assembly is used for
  • the rotational motion of the first rotating shaft 41 is converted into a linear lifting motion, thereby ensuring that the valve is opened and closed by the present execution system in the effective space.
  • the execution system in this embodiment further includes a first cylinder 5, and the above conversion assembly includes a first transition sleeve 421 and a second transition sleeve 422.
  • the first cylinder 5 is fixedly disposed with respect to the first casing 1 and located above the first driving rod 31; the first cylinder 5 is sleeved outside the first transition sleeve 421 and the second transition sleeve 422, and a speed reduction mechanism, The first rotating shaft 41 and the second rotating shaft 43 are all sleeved in the first cylinder 5 .
  • the first transition sleeve 421 is fitted with a first transition sleeve 421 on the outer wall surface of the first rotating shaft 41 by a screw structure; the bottom end of the second transition sleeve 422 is fixedly disposed on the top of the first driving rod 31; the first transition sleeve 421 The bottom of the base abuts against the top of the second transition sleeve 422.
  • the first transition sleeve 421 is a stem nut.
  • first cylinder 5 and the cover 72 of the top of the second casing 7 are fixedly connected by a threaded structure, and the second transition sleeve 422 and the first drive rod 31 are fixed by thread locking; the first rotating shaft 41
  • the bottom portion projects into the inner cavity of the second transition sleeve 422 and a desired spacing is reserved between the top of the first drive rod 31.
  • the threaded engagement of the stem nut with the first rotating shaft 41 realizes the conversion of the movement between the two, and the bottom of the stem nut is sleeved on the top of the second transition sleeve 422 to further ensure effective transmission of the lifting movement.
  • the bottom of the stem nut has an extension extending downward in the axial direction, and the outer wall surface of the extension and the inner side wall surface of the second transition sleeve 422 may overlap each other.
  • the stem nut and the first cylinder 5 are coupled by a spline extending in a vertical direction, wherein the outer side wall surface of the stem nut is provided with external splines, and the inner wall of the first cylinder 5 is provided with internal splines
  • the second transition sleeve 422 and the first cylinder 5 are also coupled by a spline, and the outer wall surface of the second transition sleeve 422 is provided with external splines, and the inner wall of the first cylinder 5 is provided with internal flowers. key.
  • the splines provided inside and outside have a large number of teeth, and the contact area between the splines is large, so that a larger load can be carried, thereby improving the load carrying capacity of the present execution system; moreover, when the first rotating shaft 41 is 41 When rotating around the shaft, the inner and outer splines ensure that the stem nut and the second transition sleeve 422 both move up and down in the vertical direction relative to the first cylinder 5 only in the direction of the spline groove, and at the same time, ensure the stem nut or the second transition The sleeve 422 is subjected to the centering of the external force for lifting movement, further ensuring the stability of the movement of the valve stem nut or the second transition sleeve 422 and the first driving rod 31 in the vertical direction, and reliably controlling the opening and closing of the valve. .
  • the first transition sleeve 421 linearly moves, and the first transition sleeve 421 drives the second transition sleeve 422 to drive the first driving rod 31 to perform the lifting movement, but not
  • the linkage block 2 is driven to perform synchronous motion; when the hydraulic medium is driven, since the bottom of the first transition sleeve 421 is only in abutting contact with the top of the second transition sleeve 422, the hydraulic medium drives the linkage block 2 and the first drive rod 31 toward When moving down, the second transition sleeve 422 and the first drive rod 31 will be disengaged from the first transition sleeve 421, and when the first drive rod 31 and the linkage block 2 move upward and are reset to the initial position, the top of the second transition sleeve abuts On the bottom of the first transition sleeve, so as to ensure that the hydraulic medium drives the movement of the first driving rod 31, the movement of the second transition sleeve 422 does not drive the movement of
  • the speed reduction mechanism provided by the present embodiment includes a second gear 441, a first gear 442, a third gear 443, a first transition wheel 443, and a second transition wheel 444.
  • the second gear 441 is coaxially mounted with the second rotating shaft 43.
  • the third gear 443 and the cover 72 are fixedly mounted by a threaded structure; the outer wall surface of the second gear 441 is engaged with the outer wall surface of the first gear 442, first The outer wall surface of the gear 442 is engaged with the inner wall surface of the third gear 443; the first transition wheel 443 is disposed under the second gear 441 and the first gear 442, and abuts against the bottom end of the first gear 442; the first transition wheel The 443 sleeve is disposed on the top of the first rotating shaft 41 and is fixedly mounted coaxially with the first rotating shaft 41.
  • the second transition wheel 444 is sleeved outside the second rotating shaft 43 and located at the second gear 441 and the first gear 442. Upper, the second transition wheel 444 abuts the top end of the first gear 442; the first transition wheel 443 and the second transition wheel 444 are fixedly connected by a fixing structure. Preferably, three first gears 442 are evenly disposed axially around the second rotating shaft 43 in the speed reducing mechanism.
  • the speed reduction mechanism provided in this embodiment is a planetary gear deceleration setting
  • the second gear 441 is equivalent to a sun gear
  • the first gear 442 is a sun gear in a planetary gear
  • the third gear 443 is a ring gear.
  • the sun gear acts as the active member
  • the sun wheel acts as the follower
  • the ring gear does not move, thereby ensuring that the first rotating shaft 41 fixedly connected with the sun wheel is decelerated relative to the sun gear.
  • the second gear 441 is disposed coaxially with the second rotating shaft 43, the outer wall surface of the second gear 441 is meshed with the outer wall surface of the first gear 442, and thus, the first gear 442 is compared with the second gear 441. It is located at a position away from the first rotation shaft 41.
  • the first distance between the rotation axis of the first gear 442 and the axis of the second rotation shaft 43 is greater than the second distance between the axis of the second gear 441 and the axis of the second rotation shaft 43, then the second gear 441
  • the rotation speed is faster than the rotation of the first gear 442 about the first rotation shaft 41
  • the rotation speed of the second rotation shaft 43 is faster than the rotation speed of the first rotation shaft 41, thereby achieving the purpose of decelerating the first rotation shaft 41, and thus the second
  • the rotating shaft 43 applies a torsional force, and the torsional force outputted by the first rotating shaft 41 will be larger, thereby ensuring that a sufficient torque is applied to drive the first driving rod 31 and the valve stem to move to the corresponding opening and closing positions, and the position is accurate. The reliability of the valve is guaranteed.
  • the bottom of the first gear 442 has a first protrusion 4421, and correspondingly, the top surface of the first transition wheel 443 is provided at a position corresponding to the first protrusion 4421.
  • the first recess 4431; the first protrusion 4421 is inserted into the first recess 4431.
  • the top of the first gear 442 has a second protrusion 4422, the second transition wheel 444 is provided with a second groove 4441 corresponding to the bottom surface of the second protrusion 4422, and the second protrusion 4422 is inserted in the second Inside the groove 4441.
  • the matching manner between the groove and the protrusion is a clearance fit to ensure the first
  • the gear 442 can be rotated within the grooves of the first transition wheel 443 and the second transition wheel 444.
  • the first gear 442 acts as an active member, and the first transition wheel 443 and the second transition wheel 444 act as a follower, and the active member is driven.
  • the action of rotating the first gear 442 about the circumferential direction of the second rotating shaft 43 is transmitted to the first rotating shaft 41 to ensure the rotation of the first rotating shaft 41 and the rotation of the first gear 442 about the second rotating shaft 43.
  • Speed transfer stability is provided to ensure the rotation of the first rotating shaft 41 and the rotation of the first gear 442 about the second rotating shaft 43.
  • the second transition wheel 444 has a connecting portion 4442 extending toward the first transition wheel 443 on the bottom surface away from the first gear 442 side, and the connecting portion 4442 is located outside the second gear 441;
  • the connecting portion 4442 is fixedly coupled to the top of the first transition wheel 443 by a threaded fastener to further ensure the stability of the transfer.
  • the first rotating shaft 41 has a boss extending outward in the radial direction, and the two ends of the boss are respectively provided with bearings and fixed by a bearing gland.
  • the bearing can support the first rotating shaft 41 to move around the shaft while reducing the friction coefficient during the rotation of the first rotating shaft 41, thereby ensuring the rotation accuracy thereof and the torsional force transmitted by the first transition wheel 443.
  • the execution system in this embodiment further includes a support 32 fixed on the top of the first drive rod 31, and is fixedly connected to the second transition sleeve 422 through the split ring 33.
  • the support 32 is located outside the first cylinder 5, and the space between the inner wall surface of the support 32 and the outer wall surface of the second transition sleeve 422 encloses the first cylinder 5;
  • the execution system in this embodiment further includes an elastic member 6 disposed in the vertical direction.
  • the elastic member 6 applies a biasing force to the holder 32 in the direction of the first rotating shaft 41.
  • the elastic member 6 is in the compressed state; when the valve needs to be opened, it is required
  • the driving valve stem and the first driving 31 rod move upward.
  • the elastic member 6 releases the compression amount to drive the first driving rod 31, the valve stem and the branch.
  • the seat 32 is moved upwards to allow the valve to close quickly.
  • the elastic member 6 drives and resets the support 32, the first drive rod 31, and the second transition sleeve 422, thereby reliably closing the valve.
  • the first annular surface of the first casing 1 is provided with a first annular step, and the first annular step is sequentially provided with a first step surface and a second step surface in the vertical direction from top to bottom; a first connecting surface connecting the first step surface and the second step surface; a second annular step is disposed on the outer wall surface of the support 32, and the second annular step is sequentially provided with a third step surface in the vertical direction from top to bottom and a fourth step surface; and a second connecting surface connecting the third step surface and the fourth step surface in the axial direction;
  • the elastic member 6 is a first spring and a second spring that are coaxially sleeved outside the first driving rod 31.
  • the median diameter of the first spring is larger than the median diameter of the second spring.
  • the two ends of the first spring abut against the second step surface and the third step surface, respectively, and are sleeved on the outer sides of the first connecting surface and the second connecting surface; the two ends of the second spring respectively abut against the first step Face and fourth step surface.
  • the execution system provided by the embodiment further includes a balancer 8 for adjusting the installation cavity 71 of the second casing 7 and the pressure in the water environment in which the valve is located; 8 includes a third housing 81 that is sealingly mounted to the cover 72, and a conduit 83 that is fixedly coupled to the third housing 81.
  • the third housing 81 has a second inner cavity 82.
  • the cover 72 has a first opening 721.
  • the bottom of the third housing 81 has a second opening 815 communicating with the first opening 721.
  • the cavity 71 and the second inner cavity 82 communicate with each other.
  • the through pipe 83 is fixedly mounted to the second side wall surface through the communication hole 814 on the side wall of the third casing 81. When the hydraulic medium of a predetermined height is placed in the second inner cavity 82, the communication hole 814 is located in the second inner cavity. 82 above the level of the hydraulic medium.
  • the liquid level of the hydraulic medium in the second inner chamber 82 is determined according to the volume, water depth and hydraulic medium parameters of the actuator chamber, and is obtained by calculation.
  • the hydraulic medium should be selected to be a hydraulic medium that is denser than water and environmentally friendly.
  • the conduction pipe 83 has a connection section 831, an introduction section 832, and a transition section 833.
  • the connecting portion 831 is welded on the communicating hole 814, and the top of the transition portion 833 is sealingly mounted along the bottom end of the connecting portion 831.
  • the top of the leading portion 832 is sealingly and fixedly connected to the bottom of the transition portion 833, and the leading portion 832 is introduced.
  • the bottom extends downward toward the bottom of the sea.
  • the connecting section 831, the lead-in section 832, and the transition section 833 are connected by NPT seal threads.
  • the connecting section 831 has an inverted L shape, and the end of the horizontal portion of the inverted L-shape is sealingly connected to the communicating hole 814, and the bottom of the vertical portion is sealingly connected with the transition portion 833.
  • the longitudinal section of the outer wall surface of the transition section 833 is formed in a "ten" shape, thereby facilitating the screwing installation of the transition section 833 and the connecting section 831 and the lead-in section 832, respectively.
  • the connecting section 831 and the leading section 832 are made of a different and corrosion-resistant metal material; the transition section 833 is made of a non-metallic and corrosion-resistant material.
  • the connecting section 831 is made of stainless steel and the lead-in section 832 is made of copper.
  • the introduction section 832 can release metal ions in the seawater, such as the copper ions used in the embodiment, so that the copper lead-in section 832 can resist seawater corrosion; and the copper ions dissolved in the water have a bactericidal effect and can prevent marine pollution.
  • the damage further prevents the marine organism from approaching the inlet, and blocks the inflow or outflow of the seawater from the second inner cavity 82; in addition, since the copper-introducing section 832 and the stainless steel connecting section 831 are two different metal materials, If the two are directly connected, the galvanic cells will be formed and the connecting section 831 or the lead-in section 832 will be corroded. Therefore, the transition section 833 provided between the lead-in section 832 and the transition section 833 is provided with a non-metallic material, which can prevent the connecting section 831 and the introduction.
  • the segments 832 are connected to each other to prevent the two from forming a primary battery, thereby increasing the service life of the balancer 8.
  • the third casing 81 includes a bottom plate 811 mounted on the cover 72, a side plate 812 fixed to the bottom plate 811, and a side plate 812.
  • the upper cover 813 on the top opening.
  • the bottom plate 811 protrudes out of the side plate 812 in the horizontal direction, and the portion of the bottom plate 811 extending outside the side plate 812 is also fixed on the cover body 72 by fasteners.
  • the bottom plate 811, the upper cover 813, and the side plate 812 are both supported by stainless steel material to prevent corrosion by seawater in a marine environment; moreover, by providing a bottom plate 811 extending horizontally outside the side plate 812, the installer can facilitate the bottom plate.
  • the fixed mounting between the 811 and the second housing 7 improves the convenience of installation and disassembly.
  • a third opening is opened in the top of the third housing 81, and a plug 84 that is inserted into the third opening can be sealed.
  • the third opening and the plug 84 are screwed into and inserted through the gap between the third opening and the plug 84 to discharge the second inner cavity 82, further ensuring the purity of the internal hydraulic medium environment of the valve, and further improving the valve. reliability.
  • the plug 84 in this embodiment selects a duplex stainless steel to be inserted into the third opening.
  • the second housing 7 and the third housing 81 are sealingly connected by a joint 85 that is inserted into the first opening 721 and the second opening 815; thereby ensuring the mounting cavity 71 and the second inner portion.
  • the cavities 82 are in communication with each other.
  • the outer wall surface of the joint 85 has a "T" shape in cross section. The horizontal portion of the T-shape projects into the second inner cavity 82, and the outer edge of the horizontal portion is welded and fixed to the bottom of the third housing 81, and the vertical portion of the joint 85 extends into the first opening of the second housing 7. 721; an annular seal is disposed between the vertical portion of the joint 85 and the inner wall surface of the first opening 721.
  • the annular seal is an O-ring.
  • the seawater In the working state of the balancer 8, the seawater is in the upper position, the hydraulic medium is in the lower position relative to the seawater under the action of its own weight, and the seawater in the second inner cavity 82 is in direct contact with the top surface of the hydraulic medium, with the second inner cavity 82
  • the pressure in the mounting cavity 71 changes, and the hydraulic medium rises or falls at the height position of the second inner cavity 82, thereby ensuring a balance between the pressure in each cavity and the underwater pressure.
  • the seawater does not mix with the hydraulic medium into the installation cavity 71, so that the execution system can operate normally, and the high reliability of the valve is ensured.
  • the execution system of the present embodiment is further provided with a switch indicating mechanism 9 for indicating the state of the valve opening and closing position.
  • the switch indicating mechanism 9 includes: a first drive shaft 91 and a second The barrel 92, the second transmission shaft 93 and the indicator needle 94.
  • the top end of the second cylinder 92 and the bottom end of the second transmission shaft 93 are fixedly connected by pins; the bottom ends of the first transmission shaft 91 and the second transmission shaft 93 are disposed in the second cylinder 92; the first transmission shaft
  • the bottom end of the 91 is fixedly coupled to the top of the support 32; the bottom of the second drive shaft 93 is located in the mounting cavity 71, the top of which extends from the cover 72 and is fixedly coupled to one end of the indicator pin 94, the other end of the indicator pin 94 Suspended, the indicator pin 94 is vertically fixed with the drive shaft.
  • the switch indicating structure further includes a sign mounted on the top surface of the cover body 72, and an open indicator 951 and a closed indicator 952 are respectively mounted on the indicator plate.
  • the free ends of the indicator pins 94 have two extreme positions indicating an open indicator 951 and a closed indicator 952, respectively.
  • a third guiding member is disposed on the outer wall surface of the first transmission shaft 91, and a third guiding sliding slot is disposed on the inner wall surface of the first cylindrical body 5.
  • the third guiding member is inserted into the third guiding sliding one-to-one correspondingly.
  • the third guiding chute is spirally extended.
  • the third guiding member is a pin, so that when the bearing 32 moves up and down in the vertical direction, when the pin rises or falls along the spiral groove, the pin drives the second cylinder 92 to pivot, thereby indicating the rotation of the hanging end of the needle 94. And accurately indicate the opening and closing of the valve.
  • the execution system for driving the opening and closing of the valve provided by the embodiment has two working modes of hydraulic driving and mechanical driving.
  • the hydraulic drive mechanism fails, the opening or closing of the valve can be controlled by mechanical drive.
  • the working process of the execution system in this embodiment is as follows;
  • the first driver drives the second rotating shaft 43 to rotate and drives the speed reducing mechanism and the first rotating shaft 41 to rotate, and then the first transition sleeve 421 slides downward in the vertical direction, first The transition sleeve 421 moves downward against the second transition sleeve 422 and the first drive rod 31. Finally, when the valve stem reaches the open position, the first drive is stopped, and the valve is in an open state.
  • the first drive drives the second rotating shaft 43 to rotate in the reverse direction, and the first transition sleeve 421 slides upward in the vertical direction, under the biasing force of the elastic member 6, the second The transition sleeve 422 is always maintained in a state of abutting against the bottom end of the first transition sleeve 421, and slides upward with the first transition sleeve 421.
  • the first drive rod 31 drives the valve stem to move upward, and finally, when the first drive When the first rotating shaft 41 cannot be rotated, the valve stem reaches the closed position correspondingly, and the valve is closed.
  • the embodiment for driving the valve opening and closing when the hydraulic medium drives the valve stem to move, the hydraulic medium passes into the upper cavity 111 through the medium passage, and drives the linkage block 2 to move downward under the driving force of the medium.
  • the bottom of the linkage block 2 abuts the limiting portion 311 of the first driving rod 31, so that the first driving rod 31 and the linkage block 2 perform synchronous movement; when mechanically driven, since the first driving rod 31 is opposite to the linkage block 2
  • the slidable setting the linkage block 2 is not subjected to the driving force, and will remain in the original position without changing the position.
  • the driving mechanism drives the first driving rod 31 to perform the lifting movement, the limit of the linkage block 2 and the first driving rod 31
  • the first driving rod 31 does not drive the linkage block 2 to perform the lifting movement, thereby reducing the degree of friction between the outer peripheral side wall surface of the linkage block 2 and the inner surface of the first casing 1. , thereby reducing the probability of creating a gap between the side wall of the linkage block 2 and the inner wall surface of the first housing 1, thereby improving the hydraulic medium to control the movement position of the first driving rod 31 during hydraulic driving, thereby making the first Drive rod 31 Moving the movable stem seated for normally open or close the valve, to improve the reliability of the control system performs the opening and closing of the valve.
  • the present embodiment provides an execution system for driving valve opening and closing, which is different from the execution system for driving valve opening and closing provided in Embodiment 1, in that
  • the change of the position of the communication hole 814 can be set on the top wall surface of the third casing 81, and can also satisfy the flow of seawater into the second inner cavity 82 along the communication hole 814, the pressure of the seawater and the oil pressure in the second inner cavity 82. Maintaining pressure balance also ensures valve reliability.
  • connection manner of the through pipe 83 and the third casing 81 can also be fixedly connected by screwing or the like as long as the seawater can be smoothly introduced into the second inner cavity 82 through the conduction pipe 83.
  • the connecting portion 831 may be in the shape of a straight pipe, and the seawater may also flow into the second inner cavity 82 along the conducting pipe 83.
  • the conduction tube 83 may be provided with only the introduction section 832, and the introduction section 832 may be provided in an L shape, as long as the conduction tube 83 can be connected to the seawater, and the seawater is drained into the second inner cavity 82. can.
  • the conduction pipe 83 may not be provided, and only the seawater is introduced into the second cavity through the communication hole 814 on the third casing 81, and the seawater is also ensured to be higher than the hydraulic oil in the second cavity 82.
  • the communication hole 814 above the liquid level flows into the second inner cavity 82, thereby performing pressure balance between the seawater and the second inner cavity 82 and the first inner cavity.
  • the present embodiment provides an execution system for driving valve opening and closing, which is different from the execution system for driving valve opening and closing provided in Embodiment 1 or Embodiment 2 in that:
  • the first driver may select any motor or other power output device as long as the first driver can drive the first rotating shaft 41 to drive and transmit the torsional force to the first gear 442.
  • the second transition wheel 444 is not provided, and the first transition wheel 443 sleeved on the first gear 442 can be used only as the intermediate torsional force transmission means.
  • the present embodiment provides an execution system for driving valve opening and closing, which is different from the execution system for driving valve opening and closing provided by any one of Embodiments 1 to 3. :
  • the first gear 442 has an L-shaped structure and an external tooth surface only by a first gear 442 fixedly coupled to the second rotating shaft 43.
  • the horizontal portion of the L-shape is fixedly coupled to the second rotating shaft 43 and the vertical structure of the L-shaped structure The portion is rotatably connected to the outer tooth surface, and the outer tooth surface is engaged with the outer side of the second gear 441 to ensure the reduction transmission of the second rotating shaft 43 by the speed reducing mechanism.
  • the present embodiment provides an execution system for driving valve opening and closing, which is different from the execution system for driving valve opening and closing provided by any one of Embodiments 1 to 4. :
  • the present embodiment provides an execution system for driving valve opening and closing, which is different from the execution system for driving valve opening and closing provided by any one of Embodiments 1 to 5. :
  • the protrusion is as long as the vertical protrusion sleeve slides along the first guide chute.
  • the first guiding member is disposed on the first transition sleeve 421, a first guiding chute correspondingly disposed on the outer wall surface of the first cylinder 5, and the first guiding member is a vertical fixedly disposed on the first cylinder 5 To the protrusion, as long as the vertical protrusion sleeve slides along the first guide chute.
  • the first guiding member may be a pin that is inserted into the first guiding groove and fixedly disposed with the first transition sleeve 421 or the first cylinder 5.
  • the first guiding chute may extend along the outer wall surface of the first transition sleeve 421 or the inner wall surface of the first cylinder 5, and the first guiding member is in one-to-one correspondence with the first guiding chute.
  • the guiding direction of the first guiding chute 421 has a sub-direction extending in the vertical direction, thereby ensuring that the first transition sleeve 421 has a partial displacement in the vertical direction, and the lifting movement of the first transition sleeve 421 is played. Guiding role.
  • the number of the first guiding members in the embodiment may also be two, three, etc., and the number of corresponding first guiding chutes is also correspondingly set, the number of guiding members is increased, and the stability of the system opening and closing is also performed. Will improve.
  • the present embodiment provides an execution system for driving valve opening and closing, which is different from the execution system for driving valve opening and closing provided by any one of Embodiments 1 to 6. :
  • the protrusion is as long as the vertical protrusion sleeve slides along the second guide chute.
  • the second guiding member is disposed on the second transition sleeve 422, a second guiding slot corresponding to the outer wall surface of the first cylinder 5 is disposed, and the second guiding member is fixedly disposed on the first cylinder 5 To the protrusion, as long as the vertical protrusion sleeve slides along the second guide chute.
  • the second guiding member may be a pin inserted into the second guiding groove and fixedly disposed with the second transition sleeve 422 or the first cylinder 5.
  • the second guiding chute may extend along the outer wall surface of the second transition sleeve 422 or the inner wall surface of the first cylinder 5, as long as the highest point and the lowest point of the trough body of the second guiding chute are ensured.
  • the point has a height difference in the vertical direction, so that the second transition sleeve 422 has a sub-displacement in the vertical direction, thereby ensuring that the driving mechanism converts the rotary motion into a vertical lifting motion.
  • the number of the second guiding members in this embodiment may also be two, three, etc., and the number of corresponding second guiding chutes is also correspondingly set, the number of guiding members is increased, and the stability of the system opening and closing is also performed. Will improve.

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Abstract

一种用于驱动阀门开合的执行系统，包括第一壳体（1）、联动块（2）、第一驱动杆（31）和驱动机构。其中，第一壳体具有第一内腔；第一壳体的侧壁上开设有介质通道；联动块外周壁面可滑动地密封设置在第一内腔的壁面上，并将第一内腔分割为上腔体（111）和下腔体（112）；介质通道与上腔体连通；第一驱动杆底部依次穿过第一壳体的顶部和联动块后伸入下腔体内；第一驱动杆的底部的限位部（311）将联动块阻挡在限位部与第一壳体的顶部之间的区域内；驱动机构设置在第一驱动杆的顶部上。该执行系统降低联动块的外周侧壁与第一壳体的内表面之间的摩擦程度，降低联动块的侧壁与第一壳体的内壁面之间产生间隙的概率，进而第一驱动杆带动阀杆运动到位，提高执行系统控制阀门开合的可靠性。

Description

一种用于驱动阀门开合的执行系统
交叉引用
本申请要求在2018年04月24日提交中国专利局、申请号为201810373112.X、发明名称为“一种用于驱动阀门开合的执行系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及阀门技术领域，具体涉及一种用于驱动阀门开合的执行系统。
背景技术
在海洋水下油气、石油开采及生产的设备装置中，通常会用到水下阀门以及阀门执行机构装置，执行机构驱动水下阀门对阀门进行开启，水下阀门以及其执行机构均需要长周期的免维护的使用工作要求，因而，高可靠性的水下阀门及其执行机构成为了水下阀门装置的设计关键。
例如，中国专利文献CN106481830A公开了一种高可靠性液压水下阀门，包括在沿竖直方向从上到下依次连接设置有操作杆、套筒、支撑座、活塞杆和阀杆。活塞杆具有杆部和与杆体底部固定连接的活塞头。该结构的水下阀门设置了两种启闭阀门的驱动方式，一种是通过机械传动作用操作杆，依次驱动套筒和支撑座，进而控制活塞杆上下运动，从而控制阀门的开合；另一种为液压驱动，通过与液压执行机构驱动活塞杆进行控制，从而控制阀门的开合。
液压执行机构包括液压缸，液压源进口以及液压源出口。其中，活塞头的侧壁面在液压缸的内壁面上沿竖直方向上密封滑动，活塞头的顶面与液压缸形成密封腔体，通过控制液压源进口和液压源出口的液压介质流入或流出密封腔体，进而操控活塞头和阀杆的升降，对阀门的开启或关闭进行控制。
上述结构的阀门的执行结构中，在机械传动过程中，活塞杆在支撑座的带动下在竖直方向上下滑移，由于活塞头的侧壁面与液压缸内壁面密封抵靠，此时，增大活塞头的侧壁面与液压缸之间存在滑动摩擦，对活塞头侧壁面将产生一定程度的磨损，使得活塞头的侧壁与液压缸内壁面之间容易产生间隙，在该间隙处会发生液压介质渗漏的现象，导致液压介质无法充分对活塞杆的位置进行控制，进而造成活塞杆带动阀杆运动不到位，引起阀门的开启或关闭不到位，阀门的可靠性差的问题。
发明内容
因此，本发明所要解决的技术问题在于现有技术中的用于驱动阀门开合的执行系统在驱动阀杆运动时，引起阀杆运动不到位，使得阀门的可靠性低的问题。
为此，本发明提供一种用于驱动阀门开合的执行系统，包括：
第一壳体，具有第一内腔；所述第一壳体的侧壁上开设有与所述第一内腔连通的至少一个介质通道；
联动块，其外周壁面可滑动地密封设置在所述第一内腔的壁面上，并将所述第一内腔分割为位于上 方的上腔体和位于下方的下腔体；所述介质通道与所述上腔体连通；
第一驱动杆，其底部依次密封且可滑动地穿过所述第一壳体的顶部和所述联动块后伸入所述下腔体内；所述第一驱动杆的底部的外周壁面上具有水平向外延伸的限位部，所述限位部用于将所述联动块阻挡在所述限位部与所述第一壳体的顶部之间的区域内；所述第一驱动杆的底部用于连接阀门的阀杆；
驱动机构，设置在所述第一驱动杆的顶部上，用于驱动所述第一驱动杆做升降运动。
优选地，上述的用于驱动阀门开合的执行系统，所述驱动机构包括
第一驱动器；
第一旋转轴，其顶部受所述第一驱动器的驱动而转动；
转换组件，其底部固定在所述第一驱动杆的顶部上，其顶部连接在所述第一旋转轴的外壁面上；所述转换组件用于将所述第一旋转轴的旋转运动转化为直线的升降运动。
进一步优选地，上述的用于驱动阀门开合的执行系统，所述转换组件包括
螺纹配合在所述第一旋转轴的外壁面上的第一过渡套；固定在所述第一驱动杆的顶部上的第二过渡套；
所述第一过渡套的底部抵靠在所述第二过渡套的顶部上；
所述第一旋转轴的底部伸入所述第二过渡套的内腔中，并与所述第一驱动杆的顶部之间预留所需间距。
进一步优选地，上述的用于驱动阀门开合的执行系统，所述执行系统还包括相对于所述第一壳体固定设置并位于所述第一驱动杆的上方的第一筒体；所述第一筒体套在所述第一过渡套和第二过渡套外。
进一步优选地，上述的用于驱动阀门开合的执行系统，所述驱动机构还包括
在所述第一过渡套的外壁面和所述第一筒体的内壁面中任一壁面上的开设有至少一个第一导向滑槽，及设置在所述第一过渡套的外壁面和所述第一筒体的内壁面中另外一个壁面上的第一导向件，所述第一导向件一一对应地插入所述第一导向滑槽内，所述第一导向滑槽沿竖向呈直线或呈螺旋线延伸；和/或
在所述第二过渡套的外壁面和所述第一筒体的内壁面中任一壁面上的开设有至少一个第二导向滑槽，及设置在所述第二过渡套的外壁面和所述第一筒体的内壁面中另外一个壁面上的第二导向件，所述第二导向件一一对应地插入所述第二导向滑槽内，所述第二导向滑槽沿竖向呈直线或呈螺旋线延伸。
进一步优选地，上述的用于驱动阀门开合的执行系统，还包括固定在所述第一驱动杆的顶部上的支座；所述支座位于所述第一筒体外，所述支座的内壁面与所述第二过渡套的外壁面之间围成供所述第一筒体插入的空间；
还包括沿竖向设置在所述支座与所述第一壳体的外壁面之间的至少一个弹性件，所述弹性件给所述支座施加朝向所述第一旋转轴方向的偏压力。
进一步优选地，上述的用于驱动阀门开合的执行系统，所述驱动机构还包括
设置在所述第一旋转轴上的第二旋转轴，所述第二旋转轴的顶部受所述第一驱动器的驱动而转动；及将所述第二旋转轴的底部与所述第一旋转轴的顶部联动连接的减速机构；
所述减速机构包括同轴套接在所述第二旋转轴底部上的第二齿轮，及与所述第一驱动轴的顶部固定连接的第一齿轮，所述第二齿轮的外壁面与所述第一齿轮的外壁面啮合设置。
进一步优选地，上述的用于驱动阀门开合的执行系统，所述减速机构还包括位于所述第二齿轮和第一齿轮下方的第一过渡轮，所述第一过渡轮套接在所述第一旋转轴的顶部上；所述第一旋转轴的顶部通过所述第一过渡轮与所述第一齿轮连接。
进一步优选地，上述的用于驱动阀门开合的执行系统，还包括套设在所述第一壳体的外壁面上的第二壳体；
所述第二壳体与所述第一壳体之间围成安装腔体，所述第一驱动杆和所述驱动机构均安装在所述安装腔体内；
所述执行系统还包括用于调节所述安装腔体内与所述阀门所处的水环境中的压力相等的平衡器。
进一步优选地，上述的用于驱动阀门开合的执行系统，所述第二壳体的顶部上开设有第一开口；
所述平衡器包括
第三壳体，密封安装在所述第二壳体的顶部上；所述第三壳体具有第二内腔，所述第三壳体的底部开设有与所述第一开口连通的第二开口；所述第三壳体的侧壁和/或顶部上开设有连通孔，在所述安装腔体中放入预设高度的液压介质时，所述连通孔位于所述安装腔体中液压介质的液位的上方；及
位于所述第三壳体外的导通管，所述导通管具有密封安装在所述连通孔上的连接段，及密封安装在所述连接段的底部上的导入段，所述导入段的底部向下延伸。
进一步优选地，上述的用于驱动阀门开合的执行系统，所述连接段和所述导入段采用不同且防腐蚀的金属材料制成；
所述导通管还包括将所述连接段的底部与所述导入段的顶部密封连接的过渡段，所述过渡段采用非金属且防腐蚀材料制成。
本发明提供的技术方案，具有如下优点：
1.本发明提供的用于驱动阀门开合的执行系统，包括第一壳体、联动块、第一驱动杆和驱动机构。其中，第一壳体具有第一内腔；所述第一壳体的侧壁上开设有与所述第一内腔连通的至少一个介质通道；联动块，其外周壁面可滑动地密封设置在所述第一内腔的壁面上，并将所述第一内腔分割为位于上方的上腔体和位于下方的下腔体；所述介质通道与所述上腔体连通；第一驱动杆的底部依次密封且可滑动地穿过所述第一壳体的顶部和所述联动块后伸入所述下腔体内；所述第一驱动杆的底部的外周壁面上具有水平向外延伸的限位部，所述限位部用于将所述联动块阻挡在所述限位部与所述第一壳体的顶部之间的 区域内；所述第一驱动杆的底部用于连接阀门的阀杆；驱动机构设置在所述第一驱动杆的顶部上，用于驱动所述第一驱动杆做升降运动。
此结构的用于驱动阀门开合的执行系统，在液压介质驱动阀杆运动时，液压介质通过介质通道通入上腔体内，在介质的驱动力下驱动联动块向下运动，联动块的底部与第一驱动杆的限位部抵接，使得第一驱动杆和联动块做同步运动；在机械驱动时，由于第一驱动杆相对于联动块可滑动设置，联动块又不受到驱动力，将不发生位置变化而维持在原位置不动，当驱动机构驱动第一驱动杆做升降运动时，联动块与第一驱动杆的限位部分离开，第一驱动杆做升降运动时，不会带动联动块做升降运动，从而降低联动块的外周侧壁壁面与第一壳体的内表面之间的摩擦程度，进而降低联动块的侧壁与第一壳体的内壁面之间产生间隙的概率，从而提高在液压驱动时，液压介质对第一驱动杆的运动位置进行控制，进而使得第一驱动杆带动阀杆运动到位，实现阀门的正常开启或关闭，提高执行系统控制阀门开合的可靠性。
2.本发明提供的用于驱动阀门开合的执行系统，所述驱动机构包括第一驱动器、第一旋转轴及转换组件。其中，第一旋转轴的顶部受所述第一驱动器的驱动而转动；转换组件的底部固定在所述第一驱动杆的顶部上，其顶部连接在所述第一旋转轴的外壁面上；所述转换组件用于将所述第一旋转轴的旋转运动转化为直线的升降运动，实现第一旋转轴驱动第一驱动杆带动阀杆做升降运动。
进一步地，所述转换组件包括螺纹配合在所述第一旋转轴的外壁面上的第一过渡套；固定在所述第一驱动杆的顶部上的第二过渡套；所述第一过渡套的底部抵靠在所述第二过渡套的顶部上；所述第一旋转轴的底部伸入所述第二过渡套的内腔中，并与所述第一驱动杆的顶部之间预留所需间距。
在机械驱动阀杆运动时，第一旋转轴转动时，使第一过渡套做直线运动，进而第一过渡套驱动第二过渡套带动第一驱动杆做升降运动，但不会驱动联动块做同步运动；在液压介质驱动时，由于第一过渡套的底部与第二过渡套的顶部只是抵接接触，在液压介质驱动联动块和第一驱动杆向下运动时，第二过渡套和第一驱动杆将脱离第一过渡套，当第一驱动杆和联动块向上运动并复位到初始位置时，第二过渡套的顶部抵靠在第一过渡套的底部上，从而确保液压介质驱动第一驱动杆运动时，第二过渡套的运动不会带动第一过渡套及第一旋转轴的运动，从而实现机械驱动方式与液压驱动方式相互独立存在。
3.本发明提供的用于驱动阀门开合的执行系统，所述第一筒体套在所述第一过渡套和第二过渡套外。所述驱动机构还包括，开设在所述第一过渡套的外壁面和所述第一筒体的内壁面中任一壁面上的至少一个第一导向滑槽，及设置在所述第一过渡套的外壁面和所述第一筒体的内壁面中另外一个壁面上的第一导向件，所述第一导向件一一对应地插入所述第一导向滑槽内，所述第一导向滑槽沿竖向呈直线或呈螺旋线延伸。
此结构的用于驱动阀门开合的执行系统，第一导向件与第一导向滑槽一一对应进行插设，第一导向滑槽的导向方向具有沿竖直方向上延伸的分方向，从而确保第一过渡套在竖直方向上具有分位移，对第一过渡套的升降运动起到导向作用。
4.本发明提供的用于驱动阀门开合的执行系统，还包括固定在所述第一驱动杆的顶部上的支座；以及沿竖向设置在所述支座与所述第一壳体的外壁面之间的至少一个弹性件，所述弹性件给所述支座施加朝向所述第一旋转轴方向的偏压力。
此结构的用于驱动阀门开合的执行系统，不管采用液压介质或机械方式驱动第一驱动杆带动阀杆做下降运动时，当阀杆运动到最低点，对应阀门处于开启状态，弹性件处于被压缩状态；当需要开启阀门时，需要驱动阀杆和第一驱动杆向上运动，在撤销对第一驱动杆作用的液压驱动力和机械驱动力时，弹性件将释放压缩量，驱动第一驱动杆、阀杆及支座做向上运动，使得阀门快速关闭。进一步地设置多个弹性件，还能够进一步地加快阀门的快速关闭。也即，在无其他形式的作用力时，弹性件对支座、第一驱动杆以及第二过渡套进行驱动复位，进而对阀门进行可靠关闭。
5.本发明提供的用于驱动阀门开合的执行系统，所述减速机构包括同轴套接在所述第二旋转轴底部上的第二齿轮，及与所述第一驱动轴的顶部固定连接的第一齿轮，所述第二齿轮的外壁面与所述第一齿轮的外壁面啮合设置。
此结构的用于驱动阀门开合的执行系统，由于第二齿轮与第二旋转轴同轴设置，第二齿轮外壁面与第一齿轮的外壁面啮合传动，因而，第一齿轮相较于第二齿轮，位于远离第一旋转轴的位置设置。第一齿轮的旋转轴线与第二旋转轴的轴线之间的第一距离大于，第二齿轮的轴线到第二旋转轴的轴线之间的第二距离，则第二齿轮的转速与第一齿轮绕第一旋转轴转动的速度更快，第二旋转轴转动速度快于第一旋转轴转动速度，实现对第一旋转轴减速的目的，因而对第二旋转轴施加扭转力，第一旋转轴所输出的扭转力将更大，进而保证具有足够大的扭转力驱动第一驱动杆和阀杆运动到对应的开合位置，并且到位准确，保证了阀门的可靠性。
6.本发明提供的用于驱动阀门开合的执行系统，所述减速机构还包括位于所述第二齿轮和第一齿轮下方的第一过渡轮，所述第一过渡轮套接在所述第一旋转轴的顶部上；所述第一旋转轴的顶部通过所述第一过渡轮与所述第一齿轮连接。
此结构的用于驱动阀门开合的执行系统，第一过渡轮的底端套设在第一齿轮端部上，第一齿轮与第二齿轮中，第一齿轮作为主动件，第一过渡轮作为从动件，在主动件的带动下，仅将第一齿轮绕第二旋转轴的周向转动的动作传递给第一旋转轴，进以保证第一旋转轴转速与第一齿轮绕第一旋转轴转动的转速的传递稳定性。
7.本发明提供的用于驱动阀门开合的执行系统，所述执行系统还包括用于调节所述安装腔体内与所述阀门所处的水环境中的压力相等的平衡器，所述第二壳体的顶部上开设有第一开口；所述平衡器包括第三壳体，密封安装在所述第二壳体的顶部上；所述第三壳体具有第二内腔，所述第三壳体的底部开设有与所述第一开口连通的第二开口；所述第三壳体的侧壁和/或顶部上开设有连通孔，在所述安装腔体中放入预设高度的液压介质时，所述连通孔位于所述安装腔体中液压介质的液位的上方。
此结构的用于驱动阀门开合的执行系统，第三壳体设置在第二壳体的顶部上，海水通过连通孔进入到第二内腔内，并与预设的液压介质充满第二内腔。平衡器工作状态下，海水处于上方位置，液压介质在其自重的作用下相对海水的处于下方位置，第二内腔内的海水与液压介质顶面直接接触，随着第二内腔和安装腔体内压力变化，液压介质在第二内腔的高度位置将上升或下降，从而保证两腔体内压力与水下压力之间的平衡。此外，在液压介质的封挡作用下，海水不会与液压介质混合进入安装腔体内，从而执行系统可正常运行，保证了阀门的高可靠性。
8.本发明提供的用于驱动阀门开合的执行系统，位于所述第三壳体外的导通管，所述导通管具有密封安装在所述连通孔上的连接段，及密封安装在所述连接段的底部上的导入段，所述导入段的底部向下延伸。所述连接段和所述导入段采用不同且防腐蚀的金属材料制成；所述导通管还包括将所述连接段的底部与所述导入段的顶部密封连接的过渡段，所述过渡段采用非金属且防腐蚀材料制成。
此结构的用于驱动水下阀门的执行系统，导入段采用金属材料制成，并向海水中释放金属离子，从而防止海洋生物靠近进口，对海水从第二内腔的流入或流出造成阻塞；此外，过渡段的设置，防止连接段与导入段之间发生原电池腐蚀，从而提高了阀门平衡器的使用寿命。
附图说明
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为实施例1中所提供的用于驱动阀门开合的执行系统的结构示意图；
图2为图1中框A的局部放大示意图；
图3为实施例1中平衡器的结构示意图；
图4为图3中圈B的结构放大示意图；
图5为实施例1中开关指示装置的结构示意图；
图6为实施例1中所提供的用于驱动阀门开合的执行系统的俯视结构示意图；
附图标记说明：
1-第一壳体；111-上腔体；112-下腔体；12-液压进口通道；13-液压出口通道；
2-联动块；
31-第一驱动杆；311-限位部；32-支座；33-对开环；
41-第一旋转轴；421-第一过渡套；422-第二过渡套；43-第二旋转轴；441-第二齿轮；442-第一齿轮；4421-第一凸起；4422-第二凸起；443-第一过渡轮；4431-第一凹槽；444-第二过渡轮；4441-第二凹槽；4442-连接部；443-第三齿轮；
5-第一筒体；
6-弹性件；
7-第二壳体；71-安装腔体；72-盖体；721-第一开口
8-平衡器；81-第三壳体；811-底板；812-侧板；813-上盖；814-连通孔；815-第二开口；82-第二内腔；83-导通管；831-连接段；832-导入段；833-过渡段；84-塞头；85-接头；
9-开关指示机构；91-第一传动轴；92-第二筒体；93-第二传动轴；94-指示针；951-开指示标；952-关指示标。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
此外，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
实施例1
本实施例提供一种用于驱动阀门开合的执行系统，如图1至图6所示，包括：第一壳体1、第二壳体7、联动块2和第一驱动杆31以及驱动机构。
其中，第一壳体1内部设有第一内腔；联动块2的设置在第一内腔内，联动块2的外周壁面在第一内腔的壁面上可滑动设置，并将第一内腔分割为位于上方的上腔体111和位于下方的下腔体112；第二壳体7套设在第一壳体1的外壁面上，并与与第一壳体1之间围成安装腔体71，驱动机构设置在第一驱动杆31的顶部上，用于驱动第一驱动杆31做升降运动，驱动机构和第一驱动杆31顶端均安装在安装腔体71内，第一驱动杆31底部依次密封且可滑动地穿过第一壳体1的顶部和联动块2后伸入下腔体112内，第一驱动杆31的底部用于连接阀门的阀杆。
具体而言，沿第一壳体1的侧壁上开设有与第一内腔连通的两条介质通道：液压进口通道12和液 压出口通道13，上述的介质通道均与上腔体111相连通，从而介质沿介质通道流入和流出第一内腔，第一内腔内的介质对联动块2施加沿竖直方向的介质力，并保证该介质力大于弹性件6(后文提及)的弹性力时，联动块2受到二者的作用合力的驱动下，带动阀杆朝向下方运动并实现开启阀门。第一驱动杆31的底部的外周壁面上具有水平向外延伸的限位部311，限位部311用于将联动块2阻挡在限位部311与第一壳体1的顶部之间的区域内，从而当介质流入第一内腔后，联动块2带动第一驱动杆31做升降运动。
如图1所示，驱动机构中包括第一旋转轴41、第二旋转轴43、减速机构、第一驱动器以及转换组件。
其中，第二旋转轴43设置在第一旋转轴41上，第二旋转轴43的顶部受第一驱动器的驱动而转动，进而带动第一旋转轴41绕其轴向旋转；第二旋转轴43的底部与第一旋转轴41的顶部联动连接的减速机构；转换组件的底部固定在第一驱动杆31的顶部上，其顶部连接在第一旋转轴41的外壁面上；转换组件用于将第一旋转轴41的旋转运动转化为直线的升降运动，从而保证了在有效空间内通过本执行系统对阀门进行开合。
如图1所示，本实施例中的执行系统中还包括第一筒体5，而上述的转换组件包括第一过渡套421和第二过渡套422。
其中，第一筒体5相对于第一壳体1固定设置并位于第一驱动杆31的上方；第一筒体5套在第一过渡套421和第二过渡套422外，此外减速机构、第一旋转轴41、第二旋转轴43均套设在第一筒体5内。第一过渡套421通过螺纹结构配合在第一旋转轴41的外壁面上的第一过渡套421；第二过渡套422底端固定设置在第一驱动杆31的顶部上；第一过渡套421的底部抵靠在第二过渡套422的顶部上。例如第一过渡套421为阀杆螺母。
具体而言，第一筒体5与第二壳体7的顶部的盖体72通过螺纹结构固定连接，第二过渡套422与第一驱动杆31通过对螺纹锁紧固定；第一旋转轴41的底部伸入第二过渡套422的内腔中，并与第一驱动杆31的顶部之间预留所需间距。阀杆螺母与第一旋转轴41的螺纹配合方式实现二者之间运动形式的转化，阀杆螺母底部套设在第二过渡套422顶部上，进一步保证对升降运动进行有效传递。例如，阀杆螺母的底部具有沿轴向方向向下延伸的延伸部，延伸部的外壁面与第二过渡套422的内侧壁面可相互搭接。
例如，阀杆螺母与第一筒体5之间通过竖直方向延伸的花键联接，其中阀杆螺母外侧壁面上设有外花键，第一筒体5的侧壁面内设有内花键，此外，第二过渡套422与第一筒体5之间也通过花键联接，第二过渡套422的外侧壁面上设有外花键，第一筒体5的内侧壁面上设有内花键。
上述结构中，内外设置的花键由于齿数较多，花键之间的接触面积较大，因而可承载更大的载荷，从而提高了本执行系统的承载能力；此外，当第一旋转轴41绕轴转动时，内外花键保证阀杆螺母和第 二过渡套422均且仅沿花键槽的方向，相对第一筒体5在竖直方向升降运动，同时，保证阀杆螺母或者第二过渡套422受外力做升降运动时的对中性，进一步保证阀杆螺母或者第二过渡套422与第一驱动杆31同轴沿竖直方向运动过程的稳定性，并可靠地控制阀门的开合。
在机械驱动阀杆运动时，第一旋转轴41转动时，使第一过渡套421做直线运动，进而第一过渡套421驱动第二过渡套422带动第一驱动杆31做升降运动，但不会驱动联动块2做同步运动；在液压介质驱动时，由于第一过渡套421的底部与第二过渡套422的顶部只是抵接接触，在液压介质驱动联动块2和第一驱动杆31向下运动时，第二过渡套422和第一驱动杆31将脱离第一过渡套421，当第一驱动杆31和联动块2向上运动并复位到初始位置时，第二过渡套的顶部抵靠在第一过渡套的底部上，从而确保液压介质驱动第一驱动杆31运动时，第二过渡套422的运动不会带动第一过渡套421及第一旋转轴41的运动，从而实现机械驱动方式与液压驱动方式相互独立存在。
如图1和图2所示，本实施例提供的减速机构，其包括第二齿轮441、第一齿轮442、第三齿轮443、第一过渡轮443和第二过渡轮444。
其中，第二齿轮441与第二旋转轴43同轴安装；第三齿轮443与盖体72通过螺纹结构固定安装；第二齿轮441的外壁面与第一齿轮442的外壁面啮合设置，第一齿轮442的外壁面与第三齿轮443的内壁面啮合设置；第一过渡轮443设置在第二齿轮441和第一齿轮442下方，并与第一齿轮442的底端抵接；第一过渡轮443套设在第一旋转轴41顶部，并与第一旋转轴41同轴固定安装；第二过渡轮444套设在第二旋转轴43外侧，并位于第二齿轮441和第一齿轮442的上方，第二过渡轮444与第一齿轮442的顶端抵接；第一过渡轮443与第二过渡轮444之间通过固定结构固定连接。最佳地，减速机构中绕第二旋转轴43轴向均匀设置有三个第一齿轮442。
本实施例中提供的减速机构为行星齿轮减速设置，第二齿轮441相当于太阳轮，第一齿轮442为行星齿轮中的恒星轮，第三齿轮443为齿圈。其中，太阳轮作为主动件，恒星轮作为从动件，齿圈不动，从而保证与恒星轮固定连接的第一旋转轴41相对太阳轮做减速运动。
具体而言，由于第二齿轮441与第二旋转轴43同轴设置，第二齿轮441外壁面与第一齿轮442的外壁面啮合传动，因而，第一齿轮442相较于第二齿轮441，位于远离第一旋转轴41的位置设置。第一齿轮442的旋转轴线与第二旋转轴43的轴线之间的第一距离大于，第二齿轮441的轴线到第二旋转轴43的轴线之间的第二距离，则第二齿轮441的转速与第一齿轮442绕第一旋转轴41转动的速度更快，第二旋转轴43转动速度快于第一旋转轴41转动速度，实现对第一旋转轴41减速的目的，因而对第二旋转轴43施加扭转力，第一旋转轴41所输出的扭转力将更大，进而保证具有足够大的扭转力驱动第一驱动杆31和阀杆运动到对应的开合位置，并且到位准确，保证了阀门的可靠性。
具体而言，如图1和图2所示，第一齿轮442的底部具有第一凸起4421，对应地，第一过渡轮443的顶部表面上对应于第一凸起4421的位置处开设有第一凹槽4431；第一凸起4421插接在第一凹槽4431 内。类似地，第一齿轮442的顶部具有第二凸起4422，第二过渡轮444对应于第二凸起4422的底部表面处开设有第二凹槽4441，第二凸起4422插接在第二凹槽4441内。无论是第一凸起4421与第一凹槽4431的配合，还是第二凹槽4441与第二凸起4422的配合，凹槽与凸起之间的配合方式均为间隙配合，以保证第一齿轮442可以在第一过渡轮443和第二过渡轮444的凹槽内转动即可。第一齿轮442、第一过渡轮443和第二过渡轮444的传动过程中，第一齿轮442作为主动件，第一过渡轮443与第二过渡轮444作为从动件，主动件的带动下，仅将第一齿轮442绕第二旋转轴43的周向转动的动作，传递给第一旋转轴41，进以保证第一旋转轴41转速与第一齿轮442绕第二旋转轴43转动的转速的传递稳定性。
如图1和图2所示第二过渡轮444在远离第一齿轮442一侧的底部表面上，具有朝向第一过渡轮443方向延伸的连接部4442，连接部4442位于第二齿轮441外；连接部4442与第一过渡轮443的顶部通过螺纹紧固件固定连接，进一步保证传递的稳定性。
第一旋转轴41上具有沿径向向外延伸的凸台，凸台两端分别设有轴承，并通过轴承压盖加以固定。轴承可支撑第一旋转轴41绕轴运动，同时降低第一旋转轴41回转过程中的摩擦系数，进而保证其回转精度，以及由通过第一过渡轮443所传递的扭转力。
如图1所示，本实施例中的执行系统中还包括固定在第一驱动杆31的顶部上的支座32，之所与第二过渡套422通过对开环33固定连接。支座32位于第一筒体5外，支座32的内壁面与第二过渡套422的外壁面之间围成供第一筒体5插入的空间；
本实施例中的执行系统还包括沿竖向设置的弹性件6。弹性件6给支座32施加朝向第一旋转轴41方向的偏压力。不管采用液压介质或机械方式驱动第一驱动杆31带动阀杆做下降运动时，当阀杆运动到最低点，对应阀门处于开启状态，弹性件6处于被压缩状态；当需要开启阀门时，需要驱动阀杆和第一驱动31杆向上运动，在撤销对第一驱动杆31作用的液压驱动力和机械驱动力时，弹性件6将释放压缩量，驱动第一驱动杆31、阀杆及支座32做向上运动，使得阀门快速关闭。进一步地设置多个弹性件6，还能够进一步地加快阀门的快速关闭。也即，在无其他形式的作用力时，弹性件6对支座32、第一驱动杆31以及第二过渡套422进行驱动复位，进而对阀门进行可靠关闭。
例如，本实施例中，第一壳体1外壁面上设有第一环形台阶，第一环形台阶自上而下沿竖直方向依次设有第一台阶面和第二台阶面；以及沿轴向连接第一台阶面和第二台阶面的第一连接面；支座32外壁面上设有第二环形台阶，第二环形台阶自上而下沿竖直方向依次设有第三台阶面和第四台阶面；以及沿轴向连接第三台阶面和第四台阶面的第二连接面；
弹性件6为同轴套设在第一驱动杆31外侧的第一弹簧和第二弹簧，第一弹簧的中径大于第二弹簧的中径。第一弹簧的两端分别抵靠在第二台阶面和第三台阶面上，并套设在第一连接面和第二连接面的外侧；第二弹簧的两端分别抵靠在第一台阶面和第四台阶面上。上述多根弹簧的共同保证弹性复位力，扩大了弹簧的选择范围，从而节约了制造成本。
如图3和图4所示，本实施例提供的执行系统，还包括用于调节第二壳体7的安装腔体71与阀门所处的水环境中的压力相等的平衡器8；平衡器8包括密封安装在盖体72上第三壳体81，以及与第三壳体81固定连接的导通管83。
其中，第三壳体81具有第二内腔82，盖体72上设有第一开口721，第三壳体81底部上开设有与第一开口721相互连通的第二开口815，从而将安装腔体71与第二内腔82相互连通。导通管83通过第三壳体81侧壁上的连通孔814与第二侧壁面固定安装，在第二内腔82中放入预设高度的液压介质时，连通孔814位于第二内腔82中液压介质的液位的上方。
上述的第二内腔82内的液压介质的液面高度，依据驱动器腔内体积、水深和液压介质参数决定，并通过计算获得。此外液压介质应选择，密度比水大并环境友好型的液压介质。
如图3和图4所示，上述的平衡器8中，导通管83具有连接段831、导入段832和过渡段833。其中，连接段831焊接在连通孔814上，过渡段833的顶部沿连接段831的底端密封固定安装，类似地，导入段832的顶部与过渡段833的的底部密封固定连接，导入段832的底部朝向海底方向向下延伸。例如，连接段831、导入段832和过渡段833三者之间通过NPT密封螺纹连接。
具体而言，连接段831呈倒立L形，倒立L形的水平部的端部密封连接在连通孔814上，其竖直部的底部与过渡段833密封连接。过渡段833外壁面的纵向截面形成为“十”字形，从而方便过渡段833与连接段831和导入段832分别旋紧安装。
具体而言，连接段831和导入段832采用不同且防腐蚀的金属材料制成；过渡段833采用非金属且防腐蚀材料制成。例如，连接段831采用不锈钢材质，导入段832采用铜材质。导入段832可朝向海水中释放金属离子，如本实施例中采用的铜离子，从而使用铜材质的导入段832可以耐海水腐蚀；而且溶入水中的铜离子有杀菌作用，可以防止海洋生物污损，进一步防止海洋生物靠近进口，而对海水从第二内腔82的流入或流出造成阻塞；此外，由于铜材质的导入段832与不锈钢材质的连接段831为两种不同的金属材质，若二者直接联通，将会形成原电池并造成连接段831或导入段832腐蚀，因而导入段832与过渡段833之间设置的设置有非金属材料的过渡段833，可防止连接段831与导入段832之间相互连通，避免二者形成原电池，从而提高平衡器8的使用寿命。
如图3和图4所示，上述的平衡器8中，第三壳体81包括安装在盖体72上的底板811，固定在底板811上的侧板812，及安装在侧板812围成的顶部开口上的上盖813。其中，底板811沿水平方向伸出侧板812外，底板811伸出侧板812外的部分还通过紧固件固定在盖体72上。例如，底板811、上盖813以及侧板812均为不锈钢材料支撑，防止在海洋环境中被海水腐蚀；此外，通过设置沿水平方向伸出于侧板812外的底板811，方便安装人员将底板811与第二壳体7之间固定安装，提高了安装和拆卸的便利性。
如图3和图4所示，第三壳体81的顶部上开设有第三开口，及可密封插接在第三开口上的塞头84。 第三开口与塞头84通过螺纹配合旋插，空气可通过第三开口与塞头84之间的缝隙排出第二内腔82外，进一步保证阀门内部液压介质环境的纯净性，进一步提高阀门的可靠性。本实施例中的塞头84选择双相不锈钢旋插在第三开口上。
如图3和图4所示，第二壳体7与第三壳体81通过插接在第一开口721和第二开口815上的接头85密封连接；从而保证安装腔体71与第二内腔82之间相互连通。接头85的外壁面截面为“T”形。T形的水平部伸入在第二内腔82中，并且水平部的外边缘焊接固定在第三壳体81的底部上，接头85的竖直部伸入第二壳体7的第一开口721内；接头85的竖直部与第一开口721的内壁面之间设置环形密封件。例如环形密封件为O形圈。
上述的平衡器8，其中，第三壳体81设置在第二壳体7的顶部上，海水通过连通孔814进入到第二内腔82内，并与预设的液压介质充满第二内腔82。平衡器8工作状态下，海水处于上方位置，液压介质在其自重的作用下相对海水的处于下方位置，第二内腔82内的海水与液压介质顶面直接接触，随着第二内腔82和安装腔体71内压力变化，液压介质在第二内腔82的高度位置上升或下降，从而保证各腔体内压力与水下压力之间的平衡。此外，在液压介质的封挡作用下，海水不会与液压介质混合进入安装腔体71内，从而执行系统可正常运行，保证了阀门的高可靠性。
如图5和图6所示，本实施例的执行系统中，还设置有对阀门开合位置状态起到指示作用的开关指示机构9，开关指示机构9包括：第一传动轴91、第二筒体92、第二传动轴93和指示针94。
其中，第二筒体92的顶端与第二传动轴93的底端通过销钉固定连接；第一传动轴91和第二传动轴93的底端设置在第二筒体92内；第一传动轴91的底端与支座32顶部固定连接；第二传动轴93的底部位于安装腔体71中，其顶部伸出与盖体72并与指示针94的一端固定连接，指示针94的另一端悬空设置，指示针94与传动轴之间垂直固定。
开关指示结构还包括安装在盖体72顶面上的指示牌，指示牌上分别安装有开指示标951和关指示标952。指示针94的悬空端分别具有指示开指示标951和关指示标952的两种极限位置。
在第一传动轴91的外壁面上设置有第三导向件，及设置在第一筒体5内壁面上的开设有第三导向滑槽，第三导向件一一对应地插入第三导向滑槽内，第三导向滑槽螺旋延伸设置。例如，第三导向件为销钉，从而当支座32沿竖直方向上下运动时，销钉沿螺旋槽上升或下降时，销钉带动第二筒体92绕轴转动，进而指示针94的悬空端转动，并对阀门的开合进行精确指示。
本实施例提供的一种用于驱动阀门开合的执行系统具有液压驱动和机械驱动两种工作方式。当液压驱动机构发生故障时，可以通过机械驱动对阀门的开启或者闭合进行控制。
在液压驱动过程中，本实施例中的执行系统工作动作过程如下：
(1)当需要开启阀门时：首先，液压介质沿液压进口通道12流入上腔体111中，在上腔体111液压介质的介质力的驱动作用下，联动块2沿竖直方向向下运动；然后，联动块2与第一驱动杆31的限 位部311抵靠联动，并带动与第一驱动杆31底端固定连接阀杆沿竖直方向向下运动；最后，当阀杆到达开启位置时，停止向上腔体111内输入液压介质，至此阀门处于开启状态。
(2)当需要关闭阀门时：首先，开启液压出口通道13，液压介质可沿液压出口流出上腔体111；然后，在弹性件6的偏压力作用下，支座32带动第一驱动杆31，进而带动联动块2沿竖直方向向上运动；最后，当第二过渡套422的顶部抵靠在第一过渡套421的底部表面时，阀杆处于关闭位置，联动块2的顶端与第一内腔的内壁面相抵靠，至此阀门处于关闭状态。
在机械驱动过程中，本实施例中的执行系统工作动作过程如下；
(1)当需要开启阀门时，首先，第一驱动器驱动第二旋转轴43转动并带动减速机构以及第一旋转轴41转动，然后，第一过渡套421沿竖直方向向下滑动，第一过渡套421抵靠第二过渡套422以及第一驱动杆31向下运动，最后，阀杆到达开启位置时，停止转动第一驱动器，至此阀门处于开启状态。
(2)当需要关闭阀门时，首先，第一驱动器带动第二旋转轴43反向旋转，第一过渡套421在竖直方向上向上滑动，在弹性件6的偏压力的作用下，第二过渡套422一直保持在与第一过渡套421的底端相互抵靠的状态，并随第一过渡套421向上滑动，然后，第一驱动杆31带动阀杆向上运动，最后，当第一驱动器无法带动第一旋转轴41转动时，阀杆相应到达关闭位置，至此阀门处于关闭状态。
本实施例提供的用于驱动阀门开合的执行系统，在液压介质驱动阀杆运动时，液压介质通过介质通道通入上腔体111内，在介质的驱动力下驱动联动块2向下运动，联动块2的底部与第一驱动杆31的限位部311抵接，使得第一驱动杆31和联动块2做同步运动；在机械驱动时，由于第一驱动杆31相对于联动块2可滑动设置，联动块2又不受到驱动力，将不发生位置变化而维持在原位置不动，当驱动机构驱动第一驱动杆31做升降运动时，联动块2与第一驱动杆31的限位部311分离开，第一驱动杆31做升降运动时，不会带动联动块2做升降运动，从而降低联动块2的外周侧壁壁面与第一壳体1的内表面之间的摩擦程度，进而降低联动块2的侧壁与第一壳体1的内壁面之间产生间隙的概率，从而提高在液压驱动时，液压介质对第一驱动杆31的运动位置进行控制，进而使得第一驱动杆31带动阀杆运动到位，实现阀门的正常开启或关闭，提高执行系统控制阀门开合的可靠性。
实施例2
本实施例提供一种用于驱动阀门开合的执行系统，其与实施例1中提供的用于驱动阀门开合的执行系统相比，存在的区别之处在于，
连通孔814设置位置的变化，可以设置在第三壳体81的顶部壁面上，同样可以满足海水沿连通孔814流入第二内腔82内，海水的压力与第二内腔82内的油压维持压力平衡，同样保证了阀门的可靠性。
导通管83与第三壳体81的连接方式，还可以通过螺纹连接等方式固定连接，只要保证海水可以通过导通管83顺利导入第二内腔82即可。
作为导通管83结构的变形，连接段831的形状可以为直管，海水同样可以沿导通管83流入第二内 腔82。
作为导通管83结构的变形，导通管83可以仅设置导入段832，导入段832可以设置为L形，只要保证导通管83可以与海水连接，将海水引流进第二内腔82即可。
作为进一步的变形，可以不设置导通管83，仅通过第三壳体81上的连通孔814将海水导入第二腔体中，同样保证海水沿设置在第二内腔82中高于液压油的液位上方的连通孔814，流入第二内腔82，从而进行海水与第二内腔82以及第一内腔中的压力平衡。
实施例3
本实施例提供一种用于驱动阀门开合的执行系统，其与实施例1或实施例2中提供的用于驱动阀门开合的执行系统相比，存在的区别之处在于：
第一驱动器可以选择任意电机或者其他动力输出装置，只要保证第一驱动器可对第一旋转轴41进行驱动转动，并将扭转力传递给第一齿轮442即可。
作为减速机构的变形，不设置第二过渡轮444，可以仅依靠套设在第一齿轮442上的第一过渡轮443作为中间扭转力的传递装置。
实施例4
本实施例提供一种用于驱动阀门开合的执行系统，其与实施例1至实施例3中任一个实施例提供的用于驱动阀门开合的执行系统相比，存在的区别之处在于：
还可以不设置第一过渡轮443和第一过渡轮443。仅通过第一齿轮442与第二旋转轴43固定连接，第一齿轮442具有L形结构和外齿面，其中，L形的水平部与第二旋转轴43固定连接，L形结构的竖直部与外齿面转动连接，外齿面与第二齿轮441的外侧啮合设置，同样可以保证减速机构对第二旋转轴43的减速传动。
实施例5
本实施例提供一种用于驱动阀门开合的执行系统，其与实施例1至实施例4中任一个实施例提供的用于驱动阀门开合的执行系统相比，存在的区别之处在于：
还可以不设置第二旋转轴43以及减速机构，第一驱动器的输出端可以直接作用在第一旋转轴41的顶部上，从而对第一旋转轴41传递扭矩即可。
实施例6
本实施例提供一种用于驱动阀门开合的执行系统，其与实施例1至实施例5中任一个实施例提供的用于驱动阀门开合的执行系统相比，存在的区别之处在于：
第一过渡套421的外壁面上的一个第一导向滑槽，及设置第一筒体5的内壁面中第一导向件，第一导向件为固定设置在第一筒体5上的竖向凸起，只要竖向凸起套沿第一导向滑槽滑动即可。
或者第一导向件设置在第一过渡套421上，第一筒体5的外壁面上对应设有的一个第一导向滑槽， 第一导向件为固定设置在第一筒体5上的竖向凸起，只要竖向凸起套沿第一导向滑槽滑动即可。
作为第一导向件的变形，第一导向件可以为插入在第一导向凹槽内，并且与第一过渡套421或者第一筒体5固定设置的销钉。
作为第一导向滑槽的变形，第一导向滑槽可以沿第一过渡套421外壁面或者第一筒体5内壁面的螺旋延伸设置，第一导向件与第一导向滑槽一一对应进行插设，第一导向滑槽421的导向方向具有沿竖直方向上延伸的分方向，从而确保第一过渡套421在竖直方向上具有分位移，对第一过渡套421的升降运动起到导向作用。
本实施例中的第一导向件的数量还可以为两个、三个等等，对应的第一导向滑槽的数量也相应设置，导向件的个数增加，执行系统启闭的稳定性也将提高。
实施例7
本实施例提供一种用于驱动阀门开合的执行系统，其与实施例1至实施例6中任一个实施例提供的用于驱动阀门开合的执行系统相比，存在的区别之处在于：
第二过渡套422的外壁面上的一个第二导向滑槽，及设置第一筒体5的内壁面中第二导向件，第二导向件为固定设置在第一筒体5上的竖向凸起，只要竖向凸起套沿第二导向滑槽滑动即可。
或者第二导向件设置在第二过渡套422上，第一筒体5的外壁面上对应设有的一个第二导向滑槽，第二导向件为固定设置在第一筒体5上的竖向凸起，只要竖向凸起套沿第二导向滑槽滑动即可。
作为第一导向件的变形，第二导向件可以为插入在第二导向凹槽内，并且与第二过渡套422或者第一筒体5固定设置的销钉。
作为第二导向滑槽的变形，第二导向滑槽可以沿第二过渡套422外壁面或者第一筒体5内壁面的螺旋延伸设置，只要保证第二导向滑槽的槽体最高点和最低点在竖直方向上具有高度差，即可保证第二过渡套422具有沿竖直方向的分位移，进而保证驱动机构将旋转运动转化为竖直方向的升降运动。
本实施例中的第二导向件的数量还可以为两个、三个等等，对应的第二导向滑槽的数量也相应设置，导向件的个数增加，执行系统启闭的稳定性也将提高。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于发明创造的保护范围之中。

Claims (11)

  1. 一种用于驱动阀门开合的执行系统，其特征在于，包括：
    第一壳体(1)，具有第一内腔；所述第一壳体(1)的侧壁上开设有与所述第一内腔连通的至少一个介质通道；
    联动块(2)，其外周壁面可滑动地密封设置在所述第一内腔的壁面上，并将所述第一内腔分割为位于上方的上腔体(111)和位于下方的下腔体(112)；所述介质通道与所述上腔体(111)连通；
    第一驱动杆(31)，其底部依次密封且可滑动地穿过所述第一壳体(1)的顶部和所述联动块(2)后伸入所述下腔体(112)内；所述第一驱动杆(31)的底部的外周壁面上具有水平向外延伸的限位部(311)，所述限位部(311)用于将所述联动块(2)阻挡在所述限位部(311)与所述第一壳体(1)的顶部之间的区域内；所述第一驱动杆(31)的底部用于连接阀门的阀杆；
    驱动机构，设置在所述第一驱动杆(31)的顶部上，用于驱动所述第一驱动杆(31)做升降运动。
  2. 根据权利要求1所述的用于驱动阀门开合的执行系统，其特征在于，所述驱动机构包括
    第一驱动器；
    第一旋转轴(41)，其顶部受所述第一驱动器的驱动而转动；
    转换组件，其底部固定在所述第一驱动杆(31)的顶部上，其顶部连接在所述第一旋转轴(41)的外壁面上；所述转换组件用于将所述第一旋转轴(41)的旋转运动转化为直线的升降运动。
  3. 根据权利要求2所述的用于驱动阀门开合的执行系统，其特征在于，所述转换组件包括
    螺纹配合在所述第一旋转轴(41)的外壁面上的第一过渡套(421)；固定在所述第一驱动杆(31)的顶部上的第二过渡套(422)；
    所述第一过渡套(421)的底部抵靠在所述第二过渡套(422)的顶部上；
    所述第一旋转轴(41)的底部伸入所述第二过渡套(422)的内腔中，并与所述第一驱动杆(31)的顶部之间预留所需间距。
  4. 根据权利要求3所述的用于驱动阀门开合的执行系统，其特征在于，
    还包括相对于所述第一壳体(1)固定设置并位于所述第一驱动杆(31)的上方的第一筒体(5)；所述第一筒体(5)套在所述第一过渡套(421)和第二过渡套(422)外。
  5. 根据权利要求4所述的用于驱动阀门开合的执行系统，其特征在于，所述驱动机构还包括
    在所述第一过渡套(421)的外壁面和所述第一筒体(5)的内壁面中任一壁面上的开设有至少一个第一导向滑槽，及设置在所述第一过渡套(421)的外壁面和所述第一筒体(5)的内壁面中另外一个壁面上的第一导向件，所述第一导向件一一对应地插入所述第一导向滑槽内，所述第一导向滑槽沿竖向呈直线或呈螺旋线延伸；和/或
    在所述第二过渡套(422)的外壁面和所述第一筒体(5)的内壁面中任一壁面上的开设有至少一个第二导向滑槽，及设置在所述第二过渡套(422)的外壁面和所述第一筒体(5)的内壁面中另外一个壁面上的第二导向件，所述第二导向件一一对应地插入所述第二导向滑槽内，所述第二导向滑槽沿竖向呈直线或呈螺旋线延伸。
  6. 根据权利要求4或5所述的用于驱动阀门开合的执行系统，其特征在于，还包括固定在所述第一驱动杆(31)的顶部上的支座(32)；所述支座(32) 位于所述第一筒体(5)外，所述支座(32)的内壁面与所述第二过渡套(422)的外壁面之间围成供所述第一筒体(5)插入的空间；
    还包括沿竖向设置在所述支座(32)与所述第一壳体(1)的外壁面之间的至少一个弹性件(6)，所述弹性件(6)给所述支座(32)施加朝向所述第一旋转轴(41)方向的偏压力。
  7. 根据权利要求2-6中任一项所述的用于驱动阀门开合的执行系统，其特征在于，所述驱动机构还包括
    设置在所述第一旋转轴(41)上的第二旋转轴(43)，所述第二旋转轴(43)的顶部受所述第一驱动器的驱动而转动；及将所述第二旋转轴(43)的底部与所述第一旋转轴(41)的顶部联动连接的减速机构；
    所述减速机构包括同轴套接在所述第二旋转轴(43)底部上的第二齿轮(441)，及与所述第一旋转轴(41)的顶部固定连接的第一齿轮(442)，所述第二齿轮(441)的外壁面与所述第一齿轮(442)的外壁面啮合设置。
  8. 根据权利要求7所述的用于驱动阀门开合的执行系统，其特征在于，所述减速机构还包括
    位于所述第二齿轮(441)和第一齿轮(442)下方的第一过渡轮(443)，所述第一过渡轮(443)套接在所述第一旋转轴(41)的顶部上；所述第一旋转轴(41)的顶部通过所述第一过渡轮(443)与所述第一齿轮(442)连接。
  9. 根据权利要求1-8中任一项所述的用于驱动阀门开合的执行系统，其特征在于，还包括套设在所述第一壳体(1)的外壁面上的第二壳体(7)；
    所述第二壳体(7)与所述第一壳体(1)之间围成安装腔体(71)，所述第一驱动杆(31)和所述驱动机构均安装在所述安装腔体(71)内；
    所述执行系统还包括用于调节所述安装腔体(71)内与所述阀门所处的 水环境中的压力相等的平衡器(8)。
  10. 根据权利要求9所述的用于驱动阀门开合的执行系统，其特征在于，所述第二壳体(7)的顶部上开设有第一开口(721)；
    所述平衡器(8)包括
    第三壳体(81)，密封安装在所述第二壳体(7)的顶部上；所述第三壳体(81)具有第二内腔(82)，所述第三壳体(81)的底部开设有与所述第一开口(721)连通的第二开口(815)；所述第三壳体(81)的侧壁和/或顶部上开设有连通孔(814)，在所述安装腔体(71)中放入预设高度的液压介质时，所述连通孔(814)位于所述安装腔体(71)中液压介质的液位的上方；及
    位于所述第三壳体(81)外的导通管(83)，所述导通管(83)具有密封安装在所述连通孔(814)上的连接段(831)，及密封安装在所述连接段(831)的底部上的导入段(832)，所述导入段(832)的底部向下延伸。
  11. 根据权利要求10所述的用于驱动阀门开合的执行系统，其特征在于，所述连接段(831)和所述导入段(832)采用不同且防腐蚀的金属材料制成；
    所述导通管(83)还包括将所述连接段(831)的底部与所述导入段(832)的顶部密封连接的过渡段(833)，所述过渡段(833)采用非金属且防腐蚀材料制成。
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