WO2022121206A1 - 一种双向自锁阻尼器 - Google Patents

一种双向自锁阻尼器 Download PDF

Info

Publication number
WO2022121206A1
WO2022121206A1 PCT/CN2021/088313 CN2021088313W WO2022121206A1 WO 2022121206 A1 WO2022121206 A1 WO 2022121206A1 CN 2021088313 W CN2021088313 W CN 2021088313W WO 2022121206 A1 WO2022121206 A1 WO 2022121206A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
overflow
locking
channel
valve
Prior art date
Application number
PCT/CN2021/088313
Other languages
English (en)
French (fr)
Inventor
毛黎娜
冯维新
李�荣
Original Assignee
宁波奉化日清新能源科技有限公司
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 宁波奉化日清新能源科技有限公司 filed Critical 宁波奉化日清新能源科技有限公司
Priority to BR112022009896-0A priority Critical patent/BR112022009896B1/pt
Priority to EP21723097.8A priority patent/EP4040009A4/en
Priority to US17/319,083 priority patent/US11187299B1/en
Publication of WO2022121206A1 publication Critical patent/WO2022121206A1/zh

Links

Images

Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/185—Bitubular units
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of pistons
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3221—Constructional features of piston rods
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/362—Combination of sealing and guide arrangements for piston rods
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present application relates to the technical field of dampers, in particular to a two-way self-locking damper.
  • a damper is a device that provides resistance to motion and consumes motion energy, and is widely used in related mechanical fields such as automotive and automation. In the field of solar photovoltaic power generation, dampers are also widely used.
  • Solar photovoltaic power generation device is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. Its core components are One of them is the photovoltaic panel module, which is composed of multiple photovoltaic panel units and is mainly used to absorb solar radiation energy.
  • the entire power generation device is arranged in an open outdoor area, and the photovoltaic panel module will shake under the blowing of the wind.
  • the damper installed at this time is mainly used to reduce the shaking amplitude of the photovoltaic panel template to maintain the receiving effect of solar radiation energy.
  • the damper currently applied to the photovoltaic panel module can generate a damping force of about 5000N to 10000N when the photovoltaic panel unit is at a moving speed of 0.1 m/s.
  • the inventor believes that after the angle adjustment of the photovoltaic panel module is completed, it should remain in a static state in order to better receive the solar radiation energy, but the damping force generated by the existing damper structure is not large under the condition of a large external load, and the photovoltaic The panel module still shakes seriously under strong wind conditions, which cannot achieve the desired effect of receiving solar radiation energy. At the same time, different degrees of shaking bring hidden dangers to the safety and life of the entire photovoltaic system.
  • the present application provides a two-way self-locking damper.
  • a two-way self-locking damper comprising a cylinder sealed with a working medium and a piston assembly housed in the cylinder and capable of displacement along the axial direction of the cylinder, the piston assembly comprising:
  • the piston rod includes a working part extending into the cylinder and a first mounting part extending from the cylinder;
  • a piston connected to the working part and dividing the cylinder into a recovery pressure chamber and a compression pressure chamber;
  • a two-way self-locking valve, connected to the working part, the two-way self-locking valve includes:
  • valve body the valve body is provided with an overflow chamber, a first overflow channel and a second overflow channel that communicate with the overflow chamber, the first overflow channel is communicated with the recovery pressure chamber, and the first overflow channel is connected to the recovery pressure chamber.
  • the secondary flow passage communicates with the compression pressure chamber;
  • the locking assembly is placed in the overflow chamber
  • the locking assembly can be guided to displace in the overflow chamber under the driving of the working medium, and is used to open/cut off the communication between the first overflow channel or the second overflow channel and the overflow chamber.
  • the piston assembly when the damper is subjected to an external load force, the piston assembly is displaced axially in the cylinder, forcing the working medium in the cylinder to flow in the recovery pressure chamber and the compression pressure chamber, and the working medium in the flow process Through the first overflow channel and the second overflow channel, the first channel is slowed down, so that the displacement of the piston rod is slowed down; at the same time, after the working medium enters the overflow chamber, it is driven to the overflow chamber.
  • the lock assembly in the chamber cuts off the communication between the first overflow channel/second overflow channel and the overflow chamber to achieve the effect of cutting off the communication between the recovery pressure chamber and the compression pressure chamber, thereby inhibiting the displacement of the piston rod It can generate huge damping force and have a better limiting effect on external loads.
  • one of the first flow passages/second flow passages is always kept in communication with the overflow chamber, and the locking assembly is used to open/cut off the communication between the other flow passage and the overflow chamber .
  • the locking assembly includes:
  • valve core unit includes a main body part and a first locking part connected to both sides of the main body part and used to open/cut off the communication between the first overflow channel/the second overflow channel and the overflow chamber; the second locking portion; and
  • the elastic compensating units are distributed on both sides of the main body for forcing the spool unit to always have a movement tendency to reset and move.
  • the elastic compensating units acting on both sides of the valve core unit can keep the first overflow channel and the second overflow channel in communication with the overflow chamber when the external load force is within a certain range state, so that the external load can achieve displacement at a certain speed; when the external load force exceeds the expected force value, it overcomes one of the elastic compensation units and makes it elastically deformed, so that the spool unit cuts off the flow channel and the overflow chamber.
  • the elastic compensation unit releases the elastic potential energy to push the valve core unit to do the reset movement, which can continue to realize the piston rod in a certain range. Velocity shifts.
  • the first locking portion includes a first tip
  • the second locking portion includes a second tip
  • the first tip and the second tip both have a conical sealing surface, wherein a conical sealing surface There is a diversion section on it, when the conical sealing surface with the diversion section collides with the opening of the first flow passage/the second flow passage, the first flow passage/the second flow passage
  • An overflow port connected to the flow chamber is formed between the flow guide section.
  • the setting of the diversion section forms an overflow port so that the recovery pressure chamber and the compression pressure
  • the piston rod can still be displaced, but due to the formation of the overflow port, it has a good damping effect on the flow of the working medium, and a large damping force is generated for the external load; moreover, the working medium can Circulation in the cylinder can effectively avoid the occurrence of idling due to the fact that the working medium does not return to the upper part of the cylinder and retains air when the piston rod moves in the opposite direction, which improves the stability of the damper operation.
  • the main body part divides the overflow chamber into a first chamber and a second chamber, and the outer peripheral surface of the main body part is in conflict with the inner wall of the overflow chamber, and the main body part opens at least one connection to the first chamber Damped flow channel with second chamber.
  • the main body acts as a piston due to the collision between the outer peripheral surface and the inner wall of the overflow chamber.
  • the driving force of the working medium to the spool unit is not enough to force
  • the valve core unit cuts off the communication between the first overflow channel/second overflow channel and the overflow chamber.
  • the working medium flows in the overflow chamber, it will flow through the damping channel on the main body at the same time.
  • the secondary slow-flow effect on the working medium further enhances the slow-speed effect of the piston rod and generates a greater damping force for external loads.
  • the valve body includes:
  • valve seat the overflow chamber and the first overflow channel are opened on the valve seat, and one end of the valve seat is provided with a locking groove communicating with the overflow chamber;
  • valve cover the second overflow channel is opened on the valve cover
  • the valve cover includes a base body and an extension part connected to one end of the base body, the outer peripheral surface of the base body is sealedly connected with the inner wall of the locking groove, and the base body is The end face collides with the groove bottom of the locking groove and forms a first sealing part, and the extension part is introduced into the overflow chamber from one end of the base body.
  • the matching connection between the valve cover and the valve seat enables the entire valve body to be arranged in a separate manner, which is convenient for the overall disassembly and assembly;
  • the first sealing portion formed after the bottoms of the grooves collide greatly improves the sealing performance of the flow chamber.
  • the working part has a damping chamber that communicates with the recovery pressure chamber and the compression pressure chamber, and the two-way self-locking valve is installed in the damping chamber.
  • the damping chamber first provides the installation space of the whole two-way self-locking valve, and at the same time, the damping chamber also acts as a storage area for the working medium, which can reduce the impact damage of the working medium to the two-way self-locking valve.
  • the piston rod is provided with an entry flow channel and a transfer flow channel
  • the intake flow channel is connected to the recovery pressure chamber and the transfer flow channel
  • the transfer flow channel is connected to the damping chamber; wherein, the intake flow channel is connected to the transfer flow channel.
  • the inflow channels are connected and the two form an included angle.
  • the working medium will flow from the recovery pressure chamber to the entry flow channel under the driving force of the piston, and then flow from the entry flow channel to the transfer flow channel.
  • the working medium will consume a part of the kinetic energy due to the sudden change of speed when it flows into the flow channel, thereby reducing the shaking of the entire damper caused by the impact of the working medium on the two-way self-locking valve due to the fast flow rate, and at the same time better improving the damping service life of the appliance.
  • the overflow chamber has a flared opening that communicates with the inflow channel.
  • the formation of the flare increases the flow rate of the working medium when it flows from the inflow channel to the overflow chamber. Due to the enlarged section, the stress concentration caused by the impact of the working medium on the two-way self-locking valve can be reduced. At the same time, the stability of the working medium is improved, and the shaking of the entire damper can be reduced.
  • the outer peripheral surface of the valve seat is in sealing connection with the inner wall of the damping chamber, and the end surface of the valve seat is in contact with the end surface of the working part to form a second sealing part.
  • the formation of the second sealing portion improves the sealing performance of the damping chamber.
  • the present application includes at least one of the following beneficial technical effects:
  • the flow of the working medium in the cylinder is used to drive the locking components in the two-way self-locking valve to displace in the overflow chamber, so as to displace the two-way self-locking valve. It can cut off the communication between the first overflow channel or the second overflow channel and the overflow chamber, thereby generating a large damping force, which can achieve the effect of limiting the external load;
  • the external load force within a certain range can be offset, so that the displacement of the entire valve core unit is not enough to cut off the first overflow channel or the second overflow channel
  • the connection with the overflow chamber realizes the slow displacement of the piston rod without affecting the normal movement of external components
  • the main body of the spool unit and the overflow chamber are tightly connected to block the flow path of the working medium from the outer peripheral surface of the main body to the inner wall of the overflow chamber, and the main body is provided with a damping flow channel.
  • the main body of the spool unit and the overflow chamber are tightly connected to block the flow path of the working medium from the outer peripheral surface of the main body to the inner wall of the overflow chamber, and the main body is provided with a damping flow channel.
  • the overflow port is formed by opening a diversion section on one of the conical sealing surfaces, so that the piston rod maintains the communication between the recovery pressure chamber and the compression pressure chamber in one of the working modes of extension or retraction, so as to realize the work.
  • the internal circulation of the medium effectively avoids the problem of idle travel caused by the air remaining in the cylinder when the piston rod performs another working mode, and improves the stability of the damper operation;
  • valve body which is arranged separately.
  • sealing connection between the valve cover and the locking groove, the sealing connection between the valve seat and the damping chamber, and the sealing connection between the ends are respectively formed, which strengthens the overall sealing performance of the overflow chamber and the damping chamber, so that the damper operates more stably.
  • 1 is a schematic structural diagram of a two-way self-locking damper
  • Fig. 2 is the connection schematic diagram of two-way self-locking valve and piston rod
  • Figure 3 is a schematic structural diagram of the two-way self-locking valve in an open state
  • Fig. 4 is the structural schematic diagram of the valve core unit
  • Fig. 5 is the enlarged view of A part of Fig. 1;
  • Fig. 6 is the structural representation of the guide
  • Fig. 7 is the state schematic diagram of the two-way self-locking valve when the piston rod is retracted
  • FIG. 8 is an enlarged view of part B of FIG. 7;
  • Fig. 9 is the state schematic diagram of the two-way self-locking valve when the piston rod is extended.
  • FIG. 10 is a schematic diagram of the connection between the two-way self-locking damper and the photovoltaic panel unit.
  • an embodiment of the present application discloses a two-way self-locking damper, which includes a cylinder, a guide 500 mounted on the opening on the upper side of the cylinder, a piston assembly that can move forward and backward axially in the cylinder, and a mounting A compression valve assembly 400 opened on the lower side of the cylinder block.
  • a further cylinder body includes an outer cylinder 11 and an inner cylinder 12 that are coaxially arranged. A space is left between the outer and inner cylinders 11 and 12 to form an oil storage chamber 13.
  • the piston assembly is placed in the inner cylinder 12 and can be moved along the inner cylinder. The axial direction of the cylinder 12 is displaced.
  • the piston assembly includes a piston rod 100 and a piston 200 connected to an end position of the piston rod 100 , and the piston rod 100 is supported by a guide 500 to realize guided sliding.
  • One end of the piston rod 100 is the working part, the other end is the first mounting part 110 , the piston 200 is connected with the working part and the working part is accommodated in the inner cylinder 12 , the first mounting part 110 extends from the inner cylinder 12 , and the cylinder body
  • a second mounting portion 17 is connected to the end of the compression valve assembly 400 , and both the first mounting portion 110 and the second mounting portion 17 are used for connecting external components.
  • the piston 200 divides the inner cylinder 12 into the recovery pressure chamber 14 and the compression pressure chamber 15, which defines that when the piston rod 100 is in the retracted mode, the piston 200 moves toward the side of the compression valve assembly 400; when the piston rod 100 is in the extended mode, the piston 200 moves toward the guide 500 side.
  • the piston rod 100 is also provided with a rebound buffer 16 , and the distance between the rebound buffer 16 and the guide 500 is the maximum stroke displacement when the piston rod 100 is extended.
  • the piston 200 includes a piston body 210 , limit plates 220 abutting against both end surfaces of the piston body 210 , and a locking nut 230 pressed against one of the limit plates 220 .
  • the limiting plate 220 can prevent the piston body 210 from being deformed by the pressure generated by the working medium during the movement.
  • the entire piston assembly also includes a two-way self-locking valve 300 installed on the working part for opening or cutting off the communication between the recovery pressure chamber 14 and the compression pressure chamber 15 .
  • the working part has a damping chamber 140
  • the two-way self-locking valve 300 is installed in the damping chamber 140 .
  • the piston rod 100 is also provided with an inlet flow channel 120 in a radial direction, and a transfer flow channel 130 is axially opened in the piston rod 100.
  • the flow channel 120 and the damping chamber 140 are connected, and the entering flow channel 120 and the turning-in flow channel 130 intersect and are in a vertical state, so that when the working medium enters the turning-in flow channel 130, the speed changes abruptly and consumes a certain amount of kinetic energy, and the damping chamber
  • the 140 has a flared opening 150 that communicates with the inflow channel 130 .
  • the large end of the flared opening 150 is away from one side of the inflow channel 130 , so that the working medium flowing to the two-way self-locking valve 300 is more stable.
  • the two-way self-locking valve 300 includes a valve body and a locking component accommodated in the valve body.
  • the valve body is a split type, including a valve seat 310 and a valve cover.
  • the valve seat 310 is provided with a flow chamber, a locking groove connected to one side of the flow chamber, and a first flow passage 311 connected to the other side of the flow chamber.
  • the valve cover is installed in the locking groove, and includes an integrated base body 320 and an extension portion 330 .
  • the base body 320 is matched with the locking groove through a screw connection to achieve a sealing connection, and the extension portion 330 is introduced into the overflow chamber.
  • the integral valve cover is also provided with a second through-flow channel 321 , and the second overflow channel 321 communicates with the overflow chamber.
  • the end face of the base body 320 abuts against the groove bottom of the locking groove to form the first sealing portion 322
  • the valve seat 310 also cooperates with the damping chamber 140 in a threaded connection to achieve a sealing connection
  • the end face of the valve seat 310 abuts against the working portion.
  • the second sealing portion 312 is formed on the end surface, and anaerobic glue is applied to the contact positions of the two threads to improve the sealing performance.
  • the first overflow passage 311 communicates with the damping chamber 140
  • the second overflow passage 321 communicates with the compression pressure chamber 15 .
  • the locking assembly is defined in the overflow chamber, and includes a valve core unit 360 and two elastic compensation units 350 acting on the valve core unit 360.
  • the valve core unit 360 includes an integral main body portion 361 and a first locking portion 362 and a second locking portion 363 located on both sides of the main body portion 361 .
  • the main body portion 361 divides the overflow chamber into a first chamber 340a and a second chamber 340b, the outer peripheral wall of which is in conflict with the inner wall of the overflow chamber to seal, and the main body portion 361 is also open to communicate with the first chamber 340a and the first chamber 340a and the second chamber 340b.
  • the damping channel 3611 of the second chamber 340b is defined in the overflow chamber, and includes a valve core unit 360 and two elastic compensation units 350 acting on the valve core unit 360.
  • the valve core unit 360 includes an integral main body portion 361 and a first locking portion 362 and a second locking portion 363 located on both sides of the main body portion 361 .
  • the first locking portion 362 includes a first tip 3621
  • the second locking portion 363 includes a second tip 3631
  • the first tip 3621 faces the side of the first overflow channel 311
  • the second tip 3631 faces the second overflow one side of the runner 321 .
  • Both the first tip 3621 and the second tip 3631 have a conical sealing surface, which is cut off from the flow chamber through the contact between the conical sealing surface and the opening of the first overflow channel 311 or the second overflow channel 321 .
  • the elastic compensating unit 350 is preferably a compression spring and is arranged on both sides of the main body portion 361 , and the valve core unit 360 can maintain a relatively static state under the action of the two elastic compensating member units.
  • the compression valve assembly 400 includes a compression valve seat 450, a compression valve plate 440, a compression valve valve body 430, an elastic member 420, a retainer 410, a compression valve plate 440, and a compression valve valve that are stacked in sequence.
  • the body 430 and the elastic member 420 are defined between the compression valve seat 450 and the retainer 410 .
  • the retainer 410 is provided with a first guide hole 411 which communicates with the compression pressure chamber 15
  • the compression valve body 430 is provided with a second guide hole 431
  • the compression valve plate 440 is provided with a third guide hole 441
  • the compression valve seat 450 is provided with a third guide hole 441 .
  • the fourth guide hole 451 and the fifth guide hole 452 communicate with each other in sequence, and the oil storage chamber 13 is also communicated with the fifth guide hole 452 .
  • the guide 500 includes a first guide seat 510 and a second guide seat 520 .
  • the inner circumference of the first guide seat 510 and the second guide seat 520 surrounds the outer circumference of the piston rod 100 .
  • the first guide seat 510 is embedded with at least one sealing ring 540 on the outer circumference.
  • the sealing ring 540 collides with the outer cylinder 11 to play a sealing role.
  • the first guide seat 510 also has an assembly groove 511.
  • the second guide seat 520 includes The positioning protrusions 521 are snapped into the mounting grooves 511 .
  • a shaft sleeve 530 is installed on the inner circumference of the first guide seat 510 and the positioning protrusion 521 , the two shaft sleeves 530 are hugged on the outer circumference of the piston rod 100 , and a shaft seal 550 is also installed on the inner circumference of the first guide seat 510 , the shaft seal 550 also hugs the outer circumference of the piston rod 100 .
  • the first guide seat 510 is provided with an overflow channel 512 that communicates with the recovery pressure chamber 14 and the oil storage chamber 13 .
  • the first guide seat 510 and the second guide seat 520 are combined with the two bushings 530 so that the piston rod 100 has better axial guiding performance when entering and exiting the inner cylinder 12 .
  • the two-way self-locking valve 300 When the two-way self-locking damper 10 is subjected to an external load force within an expected range, the two-way self-locking valve 300 is in an open state. Taking FIG. 3 as an example, it shows the flow of the working medium in one direction.
  • the piston rod 100 is in the extension mode, in this mode, the working medium part enters the oil storage chamber 13 from the recovery pressure chamber 14 through the overflow channel 512, and then enters the compression valve assembly 400 from the oil storage chamber 13, and enters the compression valve assembly 400.
  • the working medium in the valve assembly 400 overcomes the elastic force of the elastic member 420 and finally flows into the compression pressure chamber 15 through the first guide hole 411 .
  • Another part of the working medium flows from the recovery pressure chamber 14 through the inlet flow channel 120, the transfer flow channel 130, the damping chamber 140, the first overflow channel 311, the first chamber 340a, the damping channel 3611, and the second chamber in sequence.
  • the second overflow channel 321 enters into the compression pressure chamber 15, and the two-way self-locking damper 10 in this mode generates a certain damping force to the outside.
  • the two-way self-locking valve 300 When the two-way self-locking damper 10 is subjected to an external load force exceeding the expected range, the two-way self-locking valve 300 is in a closed state, and in conjunction with FIG. 7 and FIG. In this mode, the working medium drives the compression valve body 430 to close the third guide hole 441 of the compression valve plate 440 , so that the entire compression valve assembly 400 is closed, and the working medium can only enter through the second flow passage 321 In the overflow chamber, due to the excessive external load force, the elastic force of one of the elastic compensation units 350 is overcome to drive the valve core unit 360 to move toward the first overflow channel 311.
  • the tapered shape of the first tip 3621 The sealing surface gradually collides with the opening of the first overflow channel 311, but an overflow port 313 is formed between the opening of the diversion section 3622 and the first overflow channel 311, and the first overflow channel 311 Still in communication with the first chamber 340 a of the overflow chamber, the working medium flows through the first overflow channel 311 and is transferred into the recovery pressure chamber 14 .
  • the diameter of the overflow port 313 is smaller than the opening of the first overflow channel 311, the damping force on the working medium during the flow process is increased. At this time, the entire two-way self-locking damper 10 will generate a huge damping force. , restrain the displacement of the external components.
  • the two-way latching valve 300 is in a closed state. At this time, the piston rod 100 is in the extended state. Due to the excessive external load force, the elastic force of one of the elastic compensation units 350 is overcome to drive the valve core unit 360 to move toward the second overflow channel 321.
  • the second tip 3631 The conical sealing surface of the 100000011111111111 gradually interferes with the opening of the second overflow channel 321 until the communication between the second overflow channel 321 and the second chamber 340b is completely cut off.
  • the working medium can only flow in one direction from the overflow channel 512 into the oil storage chamber 13 , and the same whole two-way self-locking damper 10 will generate a huge damping force to restrain the displacement of the external components.
  • FIG. 10 shows the state of the two-way self-locking damper 10 applied to the photovoltaic panel template.
  • One end of the two-way self-locking damper 10 is connected to the main body bracket 600 , and the other end is connected to the mounting frame 700 , and the photovoltaic panel unit 800 is arranged on the mounting frame. 700 on.
  • the two-way self-locking valve 300 can be guaranteed to be in an open state without affecting the rotation of the photovoltaic panel unit 800 .
  • the two-way self-locking damper 10 When the external wind speed is too large, that is, when the external load force exceeds the expected range, the two-way self-locking damper 10 will generate a huge damping force to achieve a supporting and limiting effect on the photovoltaic panel unit 800, thereby effectively reducing the photovoltaic panel unit 800. Amount of shaking.
  • the two-way self-locking damper can generate a damping force greater than 30,000 N.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

本申请公开了一种双向自锁阻尼器，包括缸体、收容于缸体内且可沿缸体轴向发生位移的活塞总成，所述活塞总成包括活塞杆、活塞以及双向自锁阀，所述双向自锁阀包括阀体以及锁止组件，所述阀体开设有过流室以及连通于过流室的第一过流流道与第二过流流道，所述第一过流流道与复原压力室连通，所述第二过流流道与压缩压力室连通；其中，所述锁止组件于工作介质的驱动下可被引导的于过流室内发生位移，用于开启/切断第一过流流道或第二过流流道与过流室的连通，当切断第一过流流道/第二过流流道与过流室之间的连通时，来达到切断复原压力室与压缩压力室之间的连通效果，进而抑制活塞杆的位移来产生巨大的阻尼力，对外部负载产生较佳的限位作用。

Description

一种双向自锁阻尼器 技术领域
本申请涉及阻尼器的技术领域，尤其是涉及一种双向自锁阻尼器。
背景技术
阻尼器，是以提供运动的阻力，耗减运动能量的装置，广泛应用于汽车领域、自动化领域等相关机械领域中。在太阳能光伏发电领域中，阻尼器的应用也较为广泛，太阳能光伏发电装置是一种利用太阳电池半导体材料的光伏效应，将太阳光辐射能直接转换为电能的一种新型发电系统，其核心部件之一为光伏板模块，光伏板模块是由多个光伏板单元拼接而成，主要用于吸收太阳光辐射能。整个发电装置布置于空旷的户外区域，光伏板模块会在风的吹动下发生晃动，此时所安装的阻尼器主要用于降低光伏板模板的晃动幅度以保持太阳光辐射能的接收效果。
目前应用于光伏板模块上的阻尼器在当光伏板单元处于0.1m/s的移动速度状态下时，其所能产生的阻尼力大约为5000N～10000N左右。发明人认为光伏板模块角度调节完成后为更好的接收太阳光辐射能应该保持静止状态，但现有的阻尼器结构在受到较大的外部负载情况下所产生的阻尼力并不大，光伏板模块在大风情况下晃动依旧严重，无法达到理想的太阳光辐射能接收效果，同时不同程度的晃动对整个光伏系统的安全性和寿命带来隐患。
发明内容
为了实现阻尼器在受到外部较大的负载力情况下能产生较大的阻尼力，本申请提供一种双向自锁阻尼器。
本申请提供的一种双向自锁阻尼器采用如下的技术方案：
一种双向自锁阻尼器，包括封入有工作介质的缸体以及收容于缸体内且可沿缸体轴向发生位移的活塞总成，所述活塞总成包括：
活塞杆，所述活塞杆包括延伸至缸体内的工作部以及由缸体内延伸而出的第一安装部；
活塞，与工作部连接并将缸体划分为复原压力室与压缩压力室；以及
双向自锁阀，与工作部连接，所述双向自锁阀包括：
阀体，所述阀体开设有过流室以及连通于过流室的第一过流流道与第二过流流道，所述第一过流流道与复原压力室连通，所述第二过流流道与压缩压力室连通；
锁止组件，置于过流室内；
其中，所述锁止组件于工作介质的驱动下可被引导的于过流室内发生位移，用于开启/切断第一过流流道或第二过流流道与过流室的连通。
通过采用上述技术方案，阻尼器在受到外部负载力时，活塞总成于缸体内发生轴向位移，迫使缸体内的工作介质于复原压力室与压缩压力室内发生流动，工作介质在流动过程中经过第一过流流道与第二过流流道实现了第一道的缓速，使得活塞杆位移得到缓速；同时，工作介质在进入至过流室后，通过驱动置于过流室内的锁止组件来切断第一过流流道/第二过流流道与过流室之间的连通来达到切断复原压力室与压缩压力室之间的连通效果，进而抑制活塞杆的位移来产生巨大的阻尼力，对外部负载产生较佳的限位作用。
优选的，所述第一过流流道/第二过流流道的其中一流道始终保持与过流室相连通，所述锁止组件用于开启/切断另一流道与过流室的连通。
通过采用上述技术方案，由于其中一流道始终与过流室连通，增大了工作介质的压缩空间，在锁止组件在切断其中一流道与过流室的连通后，活塞杆还具有一定的位移幅度，达到缓速锁止的效果，减少由于快速锁止时外部负载产生速度突变时的晃动，同时对于整个阻尼器起到了保护，提高使用寿命。
优选的，所述锁止组件包括：
阀芯单元，所述阀芯单元包括主体部以及连接于主体部两侧且用于开启/切断第一过流流道/第二过流流道与过流室连通的第一锁止部与第二锁止部；以及
弹性补偿单元，分布于主体部的两侧用于迫使阀芯单元始终具有复位移动的运动趋势。
通过采用上述技术方案，作用于阀芯单元两侧的弹性补偿单元，可以实现当外部负载 力在一定范围内时，保持第一过流流道、第二过流流道均与过流室连通状态，使得外部负载能够以一定的速度实现位移；当外部负载力超过所预期的力值时，克服其中一弹性补偿单元并使其发生弹性形变，使得阀芯单元切断其中一流道与过流室之间的连通而达到对活塞杆的锁止效果，并且当外部负载力降低到预期的力值范围内时，弹性补偿单元释放弹性势能推动阀芯单元做复位运动，可继续实现活塞杆在一定速度发生位移。
优选的，所述第一锁止部包括第一尖端，所述第二锁止部包括第二尖端，所述第一尖端与第二尖端均具有一锥形密封面，其中一锥形密封面上开设有一导流段，当具有导流段的锥形密封面与第一过流流道/第二过流流道的开口相抵触时，第一过流流道/第二过流流道与导流段之间形成连通过流室的溢流口。
通过采用上述技术方案，当其中一锥形密封面与第一过流流道/第二过流流道的开口相抵触时，导流段的设置而形成溢流口使得复原压力室与压缩压力室还处于连通状态，此时活塞杆依旧能够发生位移，但由于溢流口的形成对工作介质的流动起到较好的阻尼效果，对于外部负载产生较大的阻尼力；并且，工作介质能够在缸体内进行循环，可有效的避免活塞杆反向运动时，由于工作介质未回流在缸体上方留存有空气而出现空程显现，提高了阻尼器运行的稳定性。
优选的，所述主体部将过流室划分为第一腔室与第二腔室，且主体部的外周面与过流室的内壁相抵触，所述主体部开至少一个连通第一腔室与第二腔室的阻尼流道。
通过采用上述技术方案，主体部由于外周面与过流室的内壁相抵触进而形成了类似活塞的作用，在当外部负载力在一定范围内时，工作介质对于阀芯单元的驱动力不足以迫使阀芯单元切断第一过流流道/第二过流流道与过流室之间的连通，此时工作介质在于过流室内流动时同时会流经主体部上的阻尼流道，起到对工作介质二次的缓流作用，更进一步的提升活塞杆的缓速效果，对于外部负载的阻尼力产生更大。
优选的，所述阀体包括：
阀座，所述过流室与第一过流流道开设于阀座上，所述阀座的一端开设有与过流室连通的锁止槽；以及
阀盖，所述第二过流流道开设于阀盖上，所述阀盖包括基体以及连接于基体一端的延伸部，所述基体的外周面与锁止槽内壁密封连接，所述基体的端面与锁止槽的槽底相抵触并形成第一密封部，所述延伸部由基体一端引入至过流室内。
通过采用上述技术方案，阀盖与阀座之间的配合连接使得整个阀体分体式设置，便于整体拆装；同时，利用基体与锁止槽内壁之间的密封连接，结合基体端面与锁止槽槽底之间抵触后所形成的第一密封部大幅提升了过流室的密封性。
优选的，述工作部具有一连通复原压力室与压缩压力室的阻尼室，所述双向自锁阀安装于阻尼室内。
通过采用上述技术方案，阻尼室的设置首先提供了整个双向自锁阀的安装空间，同时阻尼室还作为工作介质的储存区域，可降低工作介质对于双向自锁阀的冲击受损。
优选的，所述活塞杆开设有进入流道与转入流道，所述进入流道连通复原压力室与转入流道，所述转入流道连通阻尼室；其中，进入流道与转入流道相连通且两者形成一夹角。
通过采用上述技术方案，工作介质在受到活塞的驱动力下会从复原压力室流动至进入流道内，再由进入流道流动至转入流道内，由于转入流道与进入流道之间具有一夹角，工作介质在流动至转入流道时由于速度的突变会消耗一部分动能，进而减少了工作介质由于流速过快冲击双向自锁阀而导致整个阻尼器晃动，同时更好的提升阻尼器的使用寿命。
优选的，所述过流室具有与转入流道相连通的扩口。
通过采用上述技术方案，扩口的形成使得工作介质在从转入流道流动至过流室内时增大了流量，由于截面的扩大，能减少双向自锁阀受到工作介质冲击而产生的应力集中情况，同时提高了工作介质流动时的稳定性，可降低整个阻尼器工作时的晃动。
优选的，所述阀座的外周面与阻尼室的内壁为密封连接，所述阀座的端面与工作部的 端面相抵触并形成第二密封部。
通过采用上述技术方案，第二密封部的形成提高了阻尼室的密封性。
综上所述，本申请包括以下至少一种有益技术效果：
1、通过在活塞杆工作部上开设阻尼室，并在阻尼室内安装双向自锁阀，利用工作介质于缸体内的流动驱动双向自锁阀内的锁止组件于过流室内发生位移，以实现切断第一过流流道或第二过流流道与过流室的连通，进而产生较大的阻尼力，对于外部负载可实现限位的效果；
2、通过在阀芯单元的两侧布置弹性补偿单元，能够抵消一定区间范围内的外部负载力，使得整个阀芯单元的位移量不足以切断第一过流流道或第二过流流道与过流室的连通，进而实现了活塞杆缓速的位移，不影响外部元件的正常移动；
3、通过将阀芯单元的主体部与过流室采用紧配的连接方式，阻断了工作介质从主体部外周面与过流室内壁之间的流动途径，而主体部上开设阻尼流道供工作介质流动，实现了对工作介质的二次缓流作用，更好的增大整个阻尼器的缓速效果；
4、通过在其中一锥形密封面上开设导流段而形成的溢流口，使得活塞杆在伸出或者缩进的其中一工作模式下保持复原压力室与压缩压力室的连通，实现工作介质的内部循环，有效避免了活塞杆在执行另一工作模式时，缸体内留存有空气而发生空程问题，提高了阻尼器运行的稳定性；
5、通过分体设置的阀体提高了拆装过程中的便捷性，同时通过阀盖与锁止槽之间的密封连接，阀座与阻尼室之间的密封连接，并且在端部之间分别形成第一密封部与第二密封部，加强了过流室与阻尼室的整体密封性，使得阻尼器运行更为的稳定。
附图说明
图1为一种双向自锁阻尼器的结构示意图；
图2为双向自锁阀与活塞杆的连接示意图；
图3为双向自锁阀处于开启状态下的结构示意图；
图4为阀芯单元的结构示意图；
图5为图1的A部放大图；
图6为导向器的结构示意图；
图7为活塞杆处于缩进时双向自锁阀的状态示意图；
图8为图7的B部放大图；
图9为活塞杆处于伸出时双向自锁阀的状态示意图；
图10为双向自锁阻尼器与光伏板单元之间的连接示意图。
附图标记说明：10、双向自锁阻尼器；11、外缸；12、内缸；13、贮油室；14、复原压力室；15、压缩压力室；16、回弹缓冲件；17、第二安装部；100、活塞杆；110、第一安装部；120、进入流道；130、转入流道；140、阻尼室；150、扩口；200、活塞；210、活塞主体；220、限位板；230、锁紧螺母；300、双向自锁阀；310、阀座；311、第一过流流道；312、第二密封部；313、溢流口；320、基体；321、第二过流流道；322、第一密封部；330、延伸部；340a、第一腔室；340b、第二腔室；350、弹性补偿单元；360、阀芯单元；361、主体部；3611、阻尼流道；362、第一锁止部；3621、第一尖端；3622、导流段；363、第二锁止部；3631、第二尖端；400、压缩阀总成；410、保持架；411、第一导流孔；420、弹性件；430、压缩阀阀体；431、第二导流孔；440、压缩阀片；441、第三导流孔；450、压缩阀座；451、第四导流孔；452、第五导流孔；500、导向器；510、第一导向座；511、装配槽；512、溢流通道；520、第二导向座；521、定位凸块；530、轴套；540、密封圈；550、轴封；600、主体支架；700、安装架；800、光伏板单元。
具体实施方式
以下结合附图对本申请作进一步详细说明。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到 另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
参阅图1，本申请实施例公开一种双向自锁阻尼器，包括缸体、安装于缸体上侧开口的导向器500、可进退自如的于缸体内轴向滑动的活塞总成以及安装于缸体下侧开口的压缩阀总成400。
缸体内封入有工作介质，工作介质通常采用液压油，当然还可以为其他流体。进一步的缸体包括同轴设置的外缸11与内缸12，外、内缸11、12之间留有间距而形成贮油室13，活塞总成置于内缸12中，并可沿内缸12的轴向发生位移。
活塞总成包括活塞杆100以及连接于活塞杆100端部位置处的活塞200，活塞杆100被导向器500支撑而实现导向滑动。活塞杆100的一端为工作部，另一端为第一安装部110，活塞200与工作部连接且工作部容置于内缸12中，第一安装部110由内缸12延伸而出，缸体于压缩阀总成400的端部连接有第二安装部17，第一安装部110与第二安装部17均用于连接外部构件。
活塞200将内缸12划分为复原压力室14以及压缩压力室15，界定活塞杆100处于收缩模式时，活塞200靠向压缩阀总成400一侧移动；活塞杆100处于伸出模式时，活塞200朝向导向器500一侧移动。活塞杆100上还设置有回弹缓冲件16，回弹缓冲件16与导向器500之间的间距即为活塞杆100伸出时最大的行程位移量。
共同参阅图1与图2，活塞200的外周与内缸12为零间隙配合，使得处于复原压力室14与压缩压力室15中的工作介质无法从活塞200的外周面与内缸12之间的间隙流过。活塞 200包括活塞主体210、抵触于活塞主体210两端面的限位板220以及压紧于其中一限位板220上的锁紧螺母230。限位板220可使得活塞主体210在移动过程中不会因工作介质所产生的压力而发生变形。
整个活塞总成还包括安装于工作部上的双向自锁阀300，用于开启或切断复原压力室14以及压缩压力室15的连通。具体的，工作部具有一阻尼室140，双向自锁阀300安装于该阻尼室140内。此外，活塞杆100还径向开设有进入流道120，同时于活塞杆100内轴向开设有转入流道130，进入流道120与复原压力室14连通，转入流道130分别与进入流道120以及阻尼室140连通，进入流道120与转入流道130之间相交且处于垂直状态，以使得工作介质进入至转入流道130时速度发生突变而消耗一定的动能，阻尼室140具有与转入流道130相连通的扩口150，扩口150的大端远离转入流道130的一侧，以使得流动至双向自锁阀300的工作介质更为的平稳。
共同参阅图2与图3，双向自锁阀300包括阀体以及收容于阀体内的锁止组件。阀体为分体式，包括阀座310以及阀盖，阀座310开设有过流室、连通过流室一侧的锁止槽以及连通于过流室另一侧的第一过流流道311。阀盖安装于锁止槽内，包括一体式的基体320以及延伸部330，基体320通过螺纹连接方式与锁止槽配合以达到密封连接，同时延伸部330被引入至过流室内。整体阀盖还开设有贯通的第二过流流道321，第二过流流道321与过流室相连通。基体320的端面抵触于锁止槽的槽底而形成第一密封部322，阀座310同样以螺纹连接的方式与阻尼室140配合以达到密封连接，并且阀座310的端面抵触于工作部的端面上而形成第二密封部312，同时两处的螺纹接触位置均涂覆厌氧胶以提高密封性。
当整个双向自锁阀300安装至阻尼室140后，第一过流流道311与阻尼室140相连通，第二过流流道321与压缩压力室15连通。在双向自锁阀300开启的状态下，工作介质可以顺利的于复原压力室14与压缩压力室15之间发生流动。
共同参阅图3与图4，锁止组件被限定于过流室内，包括阀芯单元360以及作用于阀 芯单元360上的两个弹性补偿单元350。阀芯单元360包括一体式的主体部361以及位于主体部361两侧的第一锁止部362与第二锁止部363。主体部361将过流室划分为第一腔室340a与第二腔室340b，其外周壁与过流室的内壁相抵触而密封，同时主体部361上还开连通第一腔室340a与第二腔室340b的阻尼流道3611。
第一锁止部362包括第一尖端3621，第二锁止部363包括第二尖端3631，第一尖端3621朝向于第一过流流道311一侧，第二尖端3631朝向于第二过流流道321一侧。第一尖端3621与第二尖端3631均具有一锥形密封面，通过锥形密封面与第一过流流道311或第二过流流道321的开口相抵触而实现与过流室的切断。
弹性补偿单元350优先为压缩弹簧且布置于主体部361的两侧，阀芯单元360在两弹性补偿件单元的作用于可以保持相对静止状态。
共同参阅图1与图5，压缩阀总成400包括依次叠压的压缩阀座450、压缩阀片440、压缩阀阀体430、弹性件420以及保持架410，压缩阀片440、压缩阀阀体430以及弹性件420三者被限定于压缩阀座450与保持架410之间。保持架410开设有连通压缩压力室15第一导流孔411，压缩阀阀体430开设有第二导流孔431，压缩阀片440开设有第三导流孔441，压缩阀座450开设有第四导流孔451与第五导流孔452，各导流孔之间依次连通，同时贮油室13还与第五导流孔452连通。
共同参阅图1与图6，导向器500包括第一导向座510与第二导向座520，第一导向座510与第二导向座520的内周环绕于活塞杆100的外周上。第一导向座510于外周上嵌设有至少一个密封圈540，密封圈540与外缸11相抵触而起到密封作用，第一导向座510还具有一装配槽511，第二导向座520包括卡入至装配槽511内的定位凸块521。第一导向座510与定位凸块521的内周均装入有一轴套530，两轴套530抱合于活塞杆100的外周上，同时于第一导向座510内周上还安装有一轴封550，该轴封550同样抱合于活塞杆100的外周上。第一导向座510开设有连通复原压力室14与贮油室13的溢流通道512。第一导向座510、第 二导向座520结合两轴套530使得活塞杆100在进出内缸12时具备更佳的轴向导向性能。
本双向自锁阻尼器10在受到预期范围内的外部负载力时，双向自锁阀300处于打开状态，以图3为例，示出了工作介质于其中一方向上的流动示意，此时活塞杆100处于伸出模式，在该模式下时，工作介质部分从复原压力室14通过溢流通道512进入至贮油室13，再从贮油室13进入至压缩阀总成400内，进入至压缩阀总成400内的工作介质克服弹性件420的弹性力，最终流经第一导流孔411进入至压缩压力室15。另一部分工作介质依次从复原压力室14流经进入流道120、转入流道130、阻尼室140、第一过流流道311、第一腔室340a、阻尼流道3611、第二腔室340b、第二过流流道321进入至压缩压力室15内，此模式下的双向自锁阻尼器10对外产生一定的阻尼力。
当双向自锁阻尼器10受到超过预期范围的外部负载力时，双向自锁阀300处于关闭状态，结合图7与图8，箭头表示工作介质的流动方向，此时活塞杆100处于收缩模式。在该模式下时，工作介质驱动压缩阀阀体430以封闭压缩阀片440的第三导流孔441，使得整个压缩阀总成400关闭，工作介质只能通过第二过流流道321进入至过流室内，由于外部负载力过大克服了其中一弹性补偿单元350的弹性力以驱动了阀芯单元360朝向第一过流流道311一侧运动，此时第一尖端3621的锥形密封面逐步与第一过流流道311的开口相抵触，但由于导流段3622的开设与第一过流流道311之间形成了一溢流口313，进而第一过流流道311依旧与过流室的第一腔室340a连通，工作介质流经第一过流流道311转入至复原压力室14内。但由于溢流口313的口径相比第一过流流道311的开口要小，增大了对工作介质流动过程中的阻尼力，此时整个双向自锁阻尼器10会产生巨大的阻尼力，抑制外部构件的位移。
参见图9，同样当双向自锁阻尼器10受到超过预期范围的外部负载力时，双向自锁阀300处于关闭状态。此时活塞杆100处于伸出状态，由于外部负载力过大克服了其中一弹性补偿单元350的弹性力以驱动了阀芯单元360朝向第二过流流道321一侧运动，第二尖端3631的锥形密封面逐步与第二过流流道321的开口相抵触直至完全切断第二过流流道321与第二 腔室340b的连通。工作介质只能从溢流通道512进入至贮油室13内做单向流动，同样的整个双向自锁阻尼器10会产生巨大的阻尼力，抑制外部构件的位移。
图10示出了本双向自锁阻尼器10应用于光伏板模板的状态，双向自锁阻尼器10的一端与主体支架600连接，另一端与安装架700连接，光伏板单元800设置于安装架700上。本实施例中的光伏板单元800在正常的角度调节时，可以保证双向自锁阀300处于开启状态而不影响光伏板单元800的转动。当外界风速过大时，即外部负载力超过预期范围时，本双向自锁阻尼器10即会产生巨大的阻尼力对光伏板单元800实现支撑限位效果，进而有效的减少了光伏板单元800晃动的幅度。
光伏板单元800在受到预期范围之外的负载力而导致其位移速度在0.013～0.020m/s之间时，本双向自锁阻尼器能够产生大于30000N的阻尼力。
以上均为本申请的较佳实施例，并非依此限制本申请的保护范围，故：凡依本申请的结构、形状、原理所做的等效变化，均应涵盖于本申请的保护范围之内。

Claims (10)

  1. 一种双向自锁阻尼器，包括封入有工作介质的缸体以及收容于缸体内且可沿缸体轴向发生位移的活塞总成，其特征在于，所述活塞总成包括：
    活塞杆(100)，所述活塞杆(100)包括延伸至缸体内的工作部以及由缸体内延伸而出的第一安装部(110)；
    活塞(200)，与工作部连接并将缸体划分为复原压力室(14)与压缩压力室(15)；以及双向自锁阀(300)，与工作部连接，所述双向自锁阀(300)包括：
    阀体，所述阀体开设有过流室以及连通于过流室的第一过流流道(311)与第二过流流道(321)，所述第一过流流道(311)与复原压力室(14)连通，所述第二过流流道(321)与压缩压力室(15)连通；
    锁止组件，置于过流室内；
    其中，所述锁止组件于工作介质的驱动下可被引导的于过流室内发生位移，用于开启/切断第一过流流道(311)或第二过流流道(321)与过流室的连通。
  2. 根据权利要求1所述的一种双向自锁阻尼器，其特征在于，所述第一过流流道(311)/第二过流流道(321)的其中一流道始终保持与过流室相连通，所述锁止组件用于开启/切断另一流道与过流室的连通。
  3. 根据权利要求2所述的一种双向自锁阻尼器，其特征在于，所述锁止组件包括：
    阀芯单元(360)，所述阀芯单元(360)包括主体部(361)以及连接于主体部(361)两侧且用于开启/切断第一过流流道(311)/第二过流流道(321)与过流室连通的第一锁止部(362)与第二锁止部(363)；以及
    弹性补偿单元(350)，分布于主体部(361)的两侧用于迫使阀芯单元(360)始终具有复位移动的运动趋势。
  4. 根据权利要求3所述的一种双向自锁阻尼器，其特征在于，所述第一锁止部(362)包括第一尖端(3621)，所述第二锁止部(363)包括第二尖端(3631)，所述第一尖端(3621)与 第二尖端(3631)均具有一锥形密封面，其中一锥形密封面上开设有一导流段(3622)，当具有导流段(3622)的锥形密封面与第一过流流道(311)/第二过流流道(321)的开口相抵触时，第一过流流道(311)/第二过流流道(321)与导流段(3622)之间形成连通过流室的溢流口(313)。
  5. 根据权利要求3所述的一种双向自锁阻尼器，其特征在于，所述主体部(361)将过流室划分为第一腔室(340a)与第二腔室(340b)，且主体部(361)的外周面与过流室的内壁相抵触，所述主体部(361)开至少一个连通第一腔室(340a)与第二腔室(340b)的阻尼流道(3611)。
  6. 根据权利要求1所述的一种双向自锁阻尼器，其特征在于，所述阀体包括：
    阀座(310)，所述过流室与第一过流流道(311)开设于阀座(310)上，所述阀座(310)的一端开设有与过流室连通的锁止槽；以及
    阀盖，所述第二过流流道(321)开设于阀盖上，所述阀盖包括基体(320)以及连接于基体(320)一端的延伸部(330)，所述基体(320)的外周面与锁止槽内壁密封连接，所述基体(320)的端面与锁止槽的槽底相抵触并形成第一密封部(322)，所述延伸部(330)由基体(320)一端引入至过流室内。
  7. 根据权利要求1-6任一项所述的一种双向自锁阻尼器，其特征在于，所述工作部具有一连通复原压力室(14)与压缩压力室(15)的阻尼室(140)，所述双向自锁阀(300)安装于阻尼室(140)内。
  8. 根据权利要求7所述的一种双向自锁阻尼器，其特征在于，所述活塞杆(100)开设有进入流道(120)与转入流道(130)，所述进入流道(120)连通复原压力室(14)与转入流道(130)，所述转入流道(130)连通阻尼室(140)；其中，进入流道(120)与转入流道(130)相连通且两者形成一夹角。
  9. 根据权利要求8所述的一种双向自锁阻尼器，其特征在于，所述过流室具有与转入流道 (130)相连通的扩口(150)。
  10. 根据权利要求6所述的一种双向自锁阻尼器，其特征在于，所述阀座(310)的外周面与阻尼室(140)的内壁为密封连接，所述阀座(310)的端面与工作部的端面相抵触并形成第二密封部(312)。
PCT/CN2021/088313 2021-03-30 2021-04-20 一种双向自锁阻尼器 WO2022121206A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR112022009896-0A BR112022009896B1 (pt) 2021-03-30 2021-04-20 Amortecedor de autotravamento bidirecional
EP21723097.8A EP4040009A4 (en) 2021-03-30 2021-04-20 BI-DIRECTIONAL SELF-LOCKING SHOCK ABSORBER
US17/319,083 US11187299B1 (en) 2021-03-30 2021-05-12 Bidirectional self-locking damper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110341652.1 2021-03-30
CN202110341652.1A CN113187841A (zh) 2021-03-30 2021-03-30 一种双向自锁阻尼器

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/319,083 Continuation US11187299B1 (en) 2021-03-30 2021-05-12 Bidirectional self-locking damper

Publications (1)

Publication Number Publication Date
WO2022121206A1 true WO2022121206A1 (zh) 2022-06-16

Family

ID=76974583

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/088313 WO2022121206A1 (zh) 2021-03-30 2021-04-20 一种双向自锁阻尼器

Country Status (3)

Country Link
CN (1) CN113187841A (zh)
AU (1) AU2021277686B2 (zh)
WO (1) WO2022121206A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS508975A (zh) * 1973-05-31 1975-01-29
CN1871452A (zh) * 2003-09-17 2006-11-29 坦尼科汽车操作有限公司 与行程相关的旁路
CN102817954A (zh) * 2011-06-09 2012-12-12 株式会社万都 减震器的具有可变流动通道的阀结构
CN207213021U (zh) * 2017-08-25 2018-04-10 郭怀宝 一种阻尼阀及液压减震机构
CN207961378U (zh) * 2018-02-12 2018-10-12 郭怀宝 一种多阀片双向节流式阻尼机构及液压减震活塞
CN214788745U (zh) * 2021-03-30 2021-11-19 宁波奉化日清新能源科技有限公司 一种双向自锁阻尼器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB768698A (en) * 1954-05-05 1957-02-20 British Messier Ltd Improvements in or relating to shock absorbers for aircraft
KR101426810B1 (ko) * 2013-05-28 2014-08-05 주식회사 만도 주파수 감응형 쇽업소버

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS508975A (zh) * 1973-05-31 1975-01-29
CN1871452A (zh) * 2003-09-17 2006-11-29 坦尼科汽车操作有限公司 与行程相关的旁路
CN102817954A (zh) * 2011-06-09 2012-12-12 株式会社万都 减震器的具有可变流动通道的阀结构
CN207213021U (zh) * 2017-08-25 2018-04-10 郭怀宝 一种阻尼阀及液压减震机构
CN207961378U (zh) * 2018-02-12 2018-10-12 郭怀宝 一种多阀片双向节流式阻尼机构及液压减震活塞
CN214788745U (zh) * 2021-03-30 2021-11-19 宁波奉化日清新能源科技有限公司 一种双向自锁阻尼器

Also Published As

Publication number Publication date
CN113187841A (zh) 2021-07-30
AU2021277686A1 (en) 2022-10-20
AU2021277686B2 (en) 2023-08-03

Similar Documents

Publication Publication Date Title
CN108953461B (zh) 一种直列式液压阻尼器
CN108506403B (zh) 一种大型液压阻尼器
CN103671677A (zh) 一种粘滞阻尼器
US11125299B1 (en) Self-variable force hydraulic damper
CN102937158A (zh) 一种汽车磁流变液减振器
CN214092845U (zh) 等效阻尼比液压阻尼器
CN111188865B (zh) 一种带刚度调节装置的液压阻尼器
AU2021277719A1 (en) Self-variable force hydraulic damper
US11187299B1 (en) Bidirectional self-locking damper
WO2022121206A1 (zh) 一种双向自锁阻尼器
CN214788745U (zh) 一种双向自锁阻尼器
CN102518731B (zh) 高耗能间隙自适应型粘滞阻尼器
CN102606665A (zh) 高耗能间隙被动调节粘滞阻尼器
CN106870499B (zh) 一种阻尼缓冲阀
CN205877053U (zh) 一种双向液压缓冲器
CN205800078U (zh) 一种用于针阀式热流道系统的阀针控制装置
CN107701645A (zh) 一种复合式磁流变液减振器
CN111425484A (zh) 一种油缸末端缓冲装置
CN203656013U (zh) 一种粘滞阻尼器
CN202418397U (zh) 高耗能间隙自适应型粘滞阻尼器
CN112160845B (zh) 斯特林发动机及单向节流式活塞动密封机构
CN211599133U (zh) 一种大流量节流缓冲插装阀
CN214578526U (zh) 一种液压阻尼式双向固定型速度控制器
CN109114154A (zh) 一种刚度独立于阻尼的金属组合式隔振器
CN114542644A (zh) 带可更换式阻尼部件的三维减隔震抗摇摆装置

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2021723097

Country of ref document: EP

Effective date: 20210512

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112022009896

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112022009896

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20220520

NENP Non-entry into the national phase

Ref country code: DE