CN114408134A

CN114408134A - Timed releaser

Info

Publication number: CN114408134A
Application number: CN202210097388.6A
Authority: CN
Inventors: 张锋; 宁扬; 张健; 王汉鹏; 张君宇; 金波; 赵呢娜
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-04-29

Abstract

The invention discloses a timing releaser.A torque generated by a motor can be directly transmitted to a rotating head, a connecting hook and a releasing hook form a buckle locking connection type, the connecting hook is locked with the releasing hook in a default state, when the connecting hook is lifted from the default state, the buckle of the releasing hook and the connecting hook is released, and the releasing hook is disengaged; the top of the rotating head is provided with a spiral cutting opening, the screw penetrates through the connecting hook and the spiral cutting opening, the screw is fixed with the connecting hook, when the rotating head rotates for a half circle, the screw is lifted, the connecting hook is lifted along with the screw, and releasing action is executed. The invention realizes the function of releasing the heavy objects at fixed time, can automatically release the heavy objects in different depth sea areas, and can also automatically release the heavy objects on land, the recovery of seabed detection equipment can be realized by releasing the heavy objects in deep sea, or the ocean monitoring buoy can be released, the unlocking can be released at fixed time on land, and the invention can be applied to releasing or releasing dangerous goods in dangerous environment.

Description

Timed releaser

Technical Field

The invention belongs to the technical field of mechanical automation, and particularly relates to a timing releaser.

Background

With the rapid development of social economy and the increasing shortage of land resources, various countries have developed the ocean with the eye, and with the increasing depth of ocean resource development, ocean economy gradually becomes an important component of national economy. China is superior in marine geographic regions, but in recent years, as human activities are increasingly intensive in oceans and coastal zone regions, marine natural ecological space, hydrologic dynamics, ecological service functions and the like are seriously influenced and destroyed, and the deep development and utilization of oceans by human beings destroy marine ecological environments, change the hydrologic dynamics and sometimes cause huge environmental emergencies. In order to prevent and avoid marine ecological disasters, and to better utilize marine resources, scientific research and engineering activities of marine exploration are endless, instruments and equipment want to be recovered after entering the sea, the simplest mode is to float the instruments and equipment by utilizing buoyancy, a releaser is needed for load rejection, the whole device before load rejection is in negative buoyancy and sinks to the sea bottom, and the whole device after load rejection is in positive buoyancy and floats to the sea surface to be recovered.

In the field of ocean engineering, equipment is reliably recovered by releasing load in shallow sea or deep sea. The existing mechanical acoustic releasers are too expensive, such as the acoustic releasers of Benthos corporation, IXBLE corporation, France and Sonardyne corporation, England, and are too bulky and heavy to be mounted on a small instrument platform for use as accessories. In the prior art, the fuse wire is not released by simple mechanical movement but is fused, the fuse wire needs to be updated every time, the maintenance is troublesome, the application water depth is only 1000m, and the maximum load carrying mass is 100 kg. In the other technical scheme in the prior art, a plurality of modules such as electromagnetic valves, a plurality of power connecting rods, a pressure amplifying device and the like are integrated, so that the size is large, and the power consumption in the releasing process is large.

Disclosure of Invention

In order to solve the above problems, the technical scheme of the invention is specifically as follows: a timing releaser comprises a pressure-resistant cabin, a rotary releasing mechanism and a circuit part, wherein,

the circuit part is arranged in the pressure-resistant cabin body and comprises a motor; the pressure-resistant cabin body comprises a cabin wall, a first end cover, a second end cover and a lifting structure, wherein the first end cover side is connected with the rotary release mechanism, and the second end cover side is connected with the lifting structure;

the rotary release mechanism comprises a thrust bearing, a rotating shaft rod, a radial bearing, a fixed plate, a rotating head, a connecting hook, a first threaded sleeve, a release hook, a second threaded sleeve, a supporting plate and a screw, wherein one end of the rotating shaft rod is connected with a shaft of a motor, the other end of the rotating shaft rod is connected with the rotating head, so that torque generated by the motor can be directly transmitted to the rotating head, the section of the fixed plate is matched with the section shape of a first end cover, the fixed plate is adjacently connected with the first end cover, the rotating shaft rod and the rotating head penetrate through the first end cover and the fixed plate, the thrust bearing and the radial bearing are arranged on the rotating shaft rod, one side of the thrust bearing is the rotating shaft rod, the other side of the thrust bearing is close to the motor, and the situation that the rotating shaft rod is pressed by high pressure on the seabed to cause overlarge friction and can not rotate is avoided; the radial bearing also has the function of preventing the rotating shaft rod from being eccentric due to high pressure at the seabed so as to cause overlarge friction and incapability of rotating;

the connecting hook and the release hook form a buckle locking connection type, the connecting hook is locked with the release hook in a default state, and when the connecting hook is lifted from the default state, the buckle of the release hook and the connecting hook is released, and the release hook is disengaged; the top of the rotating head is provided with a spiral cutting opening, a screw penetrates through the connecting hook and the spiral cutting opening, the screw is fixed with the connecting hook, when the rotating head rotates for a half circle, the screw is lifted, the connecting hook is lifted, and releasing action is executed; the support plates are fixed on the fixing plate, a pair of support plates are arranged on the support plates and symmetrically distributed on two sides of the connecting hook and the release hook, the first threaded sleeve and the second threaded sleeve are fixed in two holes of the support plates, the connecting hook is arranged on the first threaded sleeve through a shaft hole in clearance fit on one hand, and is clamped between the two support plates in a clearance fit mode on the other hand, and the release hook is arranged on the second threaded sleeve through a shaft hole in clearance fit on the one hand, and is clamped between the two support plates in a clearance fit mode on the other hand; the coupling hook rotates about the first threaded sleeve and the release hook rotates about the second threaded sleeve.

Preferably, one or two sealing ring mounting grooves are formed in the periphery of the first end cover.

Preferably, one or two sealing ring mounting grooves are formed in one circle of the second end cover.

Preferably, the motor is fixed to the first end cap by a motor base.

Preferably, one or two sealing ring grooves are arranged on the rotating shaft rod.

Preferably, the connecting hook is provided with a threaded hole and a connecting hook, the releasing hook is provided with a releasing hook, the screw is fixed with the connecting hook through the threaded hole, the connecting hook and the releasing hook are in clamping locking fit, and the releasing hook and the connecting hook are mutually clamped when not released, so that heavy objects are prevented from falling off; when the screw is lifted by the rotating head, the connecting clamping hook can not clamp the releasing clamping hook any more, and one end of the releasing clamping hook of the releasing hook is separated from the supporting plate, so that the releasing effect is achieved.

Preferably, the circuit part further comprises a lithium battery, a voltage stabilizing module, a diode, a relay, a mechanical relay, a single chip microcomputer, a fuse and a switch, wherein the lithium battery supplies power to the whole timed releaser, the voltage stabilizing module performs high-voltage to low-voltage conversion, the relay is equivalent to a controlled switch and is controlled to be turned on or off by the single chip microcomputer, the relay is turned on, and the motor is turned on to start to rotate; the relay is closed, and the motor is powered off to stop rotating; the diode is connected in parallel with the motor to prevent elements from being burnt out, the mechanical relay comprises a handle, and the handle presses and bounces corresponding to the IO pin input low/high level of the single chip microcomputer.

Preferably, the rotating shaft rod is provided with a V-shaped groove, a handle of the mechanical relay and the V-shaped groove are located on the same plane, the rotating shaft rod rotates to enable the handle to enter and exit the V-shaped groove, a rising edge is generated when the handle exits the V-shaped groove to trigger external interruption, the single chip microcomputer detects the external interruption, the external interruption is released every time, after the motor rotates for 1 circle, the single chip microcomputer executes to close the motor in an interruption service program, the motor is guaranteed to rotate for at least 1 circle, and the heavy object is also guaranteed to be released.

Preferably, the single chip microcomputer and the relay adopt 5V power supply.

Preferably, the motor is powered by 12V.

The acoustic releaser has the advantages that the acoustic releaser in the prior art is expensive, basically more than 10 ten thousand, and large in volume and weight, for example, the Teledyne R12K digital acoustic releaser has the weight of 33kg in air, and the weight in air of the acoustic releaser is less than 6kg (titanium alloy) or less than 4kg (aluminum alloy); the acoustic releaser in the prior art has the length of 93.7cm and the diameter of 16.4cm, the acoustic releaser in the invention has the length of 38.2cm and the diameter of 9.4cm, and the cost is less than 1 ten thousand.

In the prior art, the release mode is not release by pure mechanical movement, but a fusing mode is adopted, the fuse wire needs to be updated every time, and the maintenance is troublesome; the water depth applied in the prior art is only 1000m, and the invention can be applied to 3500m underwater; the maximum carrying weight of the prior art is 100kg, and the maximum carrying weight of the invention is 200 kg. In the prior art, a plurality of modules such as an electromagnetic valve, a plurality of power connecting rods and a pressure amplifying device are integrated, so that the size is larger, and the power consumption in the releasing process is larger.

Drawings

FIG. 1 is a schematic view of the overall structure of a timed releaser in accordance with an embodiment of the present invention;

FIG. 2 is a schematic structural view of a pressure-resistant chamber of the timed releaser in the embodiment of the present invention;

FIG. 3 is a schematic view of a rotary release mechanism of the timed release of the present invention;

FIG. 4 is a schematic view of a shaft lever of the timed release in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of a rotary head of the timed release of an embodiment of the present invention;

FIG. 6 is a schematic view of a coupling hook structure of the timed releaser in accordance with the embodiment of the present invention;

FIG. 7 is a schematic view of a release hook configuration of the timed release of an embodiment of the present invention;

FIG. 8 is a schematic structural view of a motor base of the timed release according to the embodiment of the present invention;

FIG. 9 is a schematic diagram of a circuit portion of the timed releaser according to the embodiment of the present invention;

FIG. 10 is a schematic diagram of a mechanical relay for the timed release of an embodiment of the present invention;

FIG. 11 is a flowchart illustrating operation of the timed release of an embodiment of the present invention;

FIG. 12 is a state diagram of the unreleased rotary release mechanism of the timed release of the present invention;

FIG. 13 is a state diagram of the release rotation release mechanism of the timed release of the present invention;

FIG. 14 is a schematic view of the handle of the timed release of the present embodiment mated with a V-shaped groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.

Referring to fig. 1, which is a schematic view showing the structure of the timed releaser of the embodiment, the timed releaser comprises a pressure-resistant chamber 1, a rotary release mechanism 2 and an electric circuit part, wherein,

the circuit part is arranged in the pressure-resistant cabin body 1 and comprises a motor 7; the pressure-resistant cabin body 1 comprises a cabin wall 4, a first end cover 3, a second end cover 5 and a lifting structure 6, wherein the first end cover 3 side is connected with the rotary release mechanism 2, and the second end cover 5 side is connected with the lifting structure 6. The pressure-resistant cabin body 1 can be sealed by a sealing ring, and a circuit board and a motor 7 are installed inside the pressure-resistant cabin body, so that the pressure-resistant cabin body has a pressure-resistant and waterproof function. The rotary releasing mechanism 2 releases the heavy blocks under the action of a motor 7 in the pressure-resistant cabin body 1, so as to achieve the effect of recovering equipment.

Referring to fig. 2, the pressure-resistant cabin 1 includes a first end cap 3, a bulkhead 4, a second end cap 5, and a lifting structure 6, in order to achieve reliable waterproof, in the embodiment, two seal ring installation grooves are respectively formed on the first end cap 3 and the second end cap 5 for installing a seal ring (if the first end cap and the second end cap are not used in the sea, the seal ring is not added, the two seal rings are not needed for safety, the two seal rings are not needed, the end caps are arranged on the two sides for convenient assembly and disassembly, and only the first end cap 3 or only the second end cap 5 is provided).

Referring to fig. 3, the rotation releasing mechanism 2 includes a thrust bearing 8, a spindle shaft 9, a radial bearing 10, a fixing plate 11, a rotating head 12, a connecting hook 13, a first threaded sleeve 14, a releasing hook 15, a second threaded sleeve 16, a support plate 17, and a screw 23. The shaft of the motor 7 is connected to the spindle rod 9, and the spindle rod 9 is connected to the rotary head 12, so that the torque generated by the motor 7 can be directly transmitted to the rotary head 12. The motor 7 is fixed on the first end cover 3 through a motor base (see fig. 8 for a structural schematic diagram), the rotating shaft rod 9 and the rotating head 12 penetrate through the first end cover 3 and the fixing plate 11, see fig. 4, a V-shaped groove 19 is formed in the rotating shaft rod 9, and in addition, two sealing ring grooves 20 are formed, wherein dynamic sealing is realized by the two sealing rings. The thrust bearing 8 and the radial bearing 10 are arranged on the rotating shaft rod 9, one side of the thrust bearing 8 is the rotating shaft rod 9, and the other side of the thrust bearing 8 is the motor 7 arranged on the first end cover 3 through a motor base, so that the situation that the rotating shaft rod 9 is pressed by the seabed under high pressure to cause overlarge friction and cannot rotate is avoided; the radial bearing 10 has similar functions and prevents the rotating shaft rod 9 from being eccentric due to high pressure at the seabed and the like so as to prevent the rotating shaft rod from being too large in friction and incapable of rotating. Referring to fig. 5, the head of the rotary head 12 is cut off spirally and can pass through the screw 23, and when the rotary head 12 rotates by half a turn, the screw 23 is lifted up, and the releasing action is performed. The supporting plates 17 are fixed to the fixing plate 11, and a pair of the supporting plates 17 are symmetrically arranged at both sides of the coupling hook 13 and the release hook 15. The first threaded sleeve 14 and the second threaded sleeve 16 are fixed in two holes of the support plate 17, the connecting hook 13 is mounted on the first threaded sleeve 14 through a shaft hole in clearance fit on one hand and is clamped between the two support plates 17 (clearance fit) on the other hand, referring to fig. 6, the connecting hook 13 is provided with a threaded hole 21 and a connecting hook 24, and the release hook 15 is mounted on the second threaded sleeve 16 through a shaft hole in clearance fit on the one hand and is clamped between the two support plates 17 (clearance fit) on the other hand; referring to fig. 7, the release hook 15 is provided with a release hook 22, the above four clearance fits are used for preventing over-friction from causing dead locking, and the release hook 22 and the connecting hook 24 are mutually locked when not released, so as to prevent heavy objects from falling. The coupling hook 13 can be rotated about the first threaded sleeve 14 and the release hook 15 can be rotated about the second threaded sleeve 16. The screw 23 passes through the coupling hook 13 and the rotary head 12 and is fixed by the screw hole 21. When releasing, the rotating head 12 rotates, the screw 23 is lifted up by the end of the rotating head 12, the release hook 22 can not block the connection hook 24, the release hook 15 is separated, and the releasing effect is achieved.

Referring to fig. 9, the circuit portion includes a motor 7, a lithium battery 25, a voltage stabilizing module 26, a diode 27, a relay 28, a mechanical relay 29 (see fig. 10 for a schematic structural diagram, and a handle 33 is provided thereon), a single chip microcomputer 30, a fuse 31, and a switch 32. The whole timed releaser is powered by the lithium battery 25, the singlechip 30 and the relay adopt low voltage power supply (5V in the specific embodiment), the motor 7 adopts high voltage power supply (12V in the specific embodiment), the voltage stabilizing module 26 is adopted to realize conversion from high voltage to low voltage, and high-low double-level power supply is realized in the whole circuit. The relay 28 is equivalent to a controlled switch, and is controlled to be turned on or off by the singlechip 30, the controlled switch is turned on, and the motor 7 is switched on to start rotating; the controlled switch is closed and the motor 7 is de-energized to stop rotating. Since the motor 7 is equivalent to a large inductance in the circuit, the current does not disappear immediately, and a freewheeling diode 27 is required to prevent the components from being burned out. The handle 33 of the mechanical relay 29 is pressed and bounced to correspond to the IO pin input low/high level of the single chip microcomputer 30, therefore, when the handle 33 goes out of the V-shaped groove 19, a rising edge is generated to trigger external interruption, in order to ensure reliable release, the single chip microcomputer 30 detects the external interruption, the external interruption is released every time, after the motor 7 rotates for 1 circle, the single chip microcomputer 30 executes to close the motor 7 in an interruption service program, the motor 7 is ensured to rotate for at least 1 circle, and the release of a heavy object is also ensured. Fig. 14 is a schematic view of the handle 33 and the V-groove 19.

The releasing work flow is shown in fig. 11, the system is in a state to be wakened after being powered on, a user wakes up the system after sending a wake-up instruction through the serial port, the system starts to stand by after the user sends and confirms the stand-by time through the serial port, the motor starts to rotate after the stand-by time specified by the user is over, the heavy object is released, and the system returns to the state to be wakened again.

Referring to fig. 12, in the unreleased state, when the heavy object is fixed before releasing, the heavy object is fixed in the closed ring 34 formed by the connecting hook 13, the releasing hook 15 and the supporting plate 17, the connecting hook 13 and the releasing hook 15 are located at the positions shown in fig. 12, the connecting hook 13 is close to and attached to the fixing plate 11, and the releasing hook 22 is used for clamping the connecting hook 24, so that the heavy object cannot be unhooked; referring to fig. 13, in the releasing state, the circuit part drives the motor 7 to rotate during releasing, so as to drive the rotating head 12 to rotate, lift the screw 23, and at this time, the connecting hook 13 and the releasing hook 15 are located at the positions shown in fig. 13, the connecting hook 13 is lifted off the fixed plate 11, the releasing hook 22 is no longer locked with the connecting hook 24, and under the gravity action of the heavy object, the releasing hook 15 is pulled down, so as to drive the connecting hook 13 to further rotate, the sealing ring 34 is no longer sealed, and the heavy object is guaranteed to be smoothly unhooked.

The invention has small size, diameter of 9.4cm and length of 38.2cm, and can be conveniently carried on various instrument platforms; the application water depth is deeper and can reach 3500 m; a radial bearing 10 and a thrust bearing 8 are arranged on a part rotating shaft rod 9 which is extruded by seawater and needs to rotate, so that the problem that the part rotating shaft rod is difficult to rotate due to overlarge friction caused by seawater extrusion is prevented; the screw 23 is lifted up by adopting a rotating mode of the rotating head 12, and the release hook 15 is separated to achieve the effect of releasing the heavy object; after the serial port is used once, the serial port can be reused only by setting the standby time again, and the maintenance is convenient.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A timing releaser is characterized in that the timing releaser comprises a pressure-resistant cabin body, a rotary release mechanism and a circuit part, wherein,

2. A timed release according to claim 1, characterised in that one or two sealing ring mounting slots are provided around the first end cap.

3. A timed release according to claim 1, characterised in that one or two sealing ring mounting grooves are provided around the second end cap.

4. A timed release according to claim 1, characterised in that the motor is secured to the first end cap by means of a motor mount.

5. A timed release according to claim 1, characterised in that the spindle shaft is provided with one or two sealing ring grooves.

6. The timed release according to claim 1, characterized in that the said connecting hook has a threaded hole and a connecting hook, the releasing hook has a releasing hook, the screw is fixed with the connecting hook through the threaded hole, the connecting hook and the releasing hook are in snap-lock fit, the releasing hook and the connecting hook are mutually locked when not released, so as to prevent the heavy object from falling; when the screw is lifted by the rotating head, the connecting clamping hook can not clamp the releasing clamping hook any more, and one end of the releasing clamping hook of the releasing hook is separated from the supporting plate, so that the releasing effect is achieved.

7. The timed releaser according to claim 1, characterized in that the circuit part also comprises a lithium battery, a voltage stabilizing module, a diode, a relay, a mechanical relay, a single chip microcomputer, a fuse and a switch, wherein the lithium battery supplies power to the whole timed releaser, the voltage stabilizing module performs high voltage to low voltage conversion, the relay is equivalent to a controlled switch and is controlled by the single chip microcomputer to be opened or closed, the relay is opened, and the motor is switched on to start rotating; the relay is closed, and the motor is powered off to stop rotating; the diode is connected in parallel with the motor to prevent elements from being burnt out, the mechanical relay comprises a handle, and the handle presses and bounces corresponding to the IO pin input low/high level of the single chip microcomputer.

8. The timed releaser as recited in claim 6, wherein the said spindle lever has a V-shaped groove, the handle of the mechanical relay and the V-shaped groove are in the same plane, the spindle lever rotates to make the handle enter and exit the V-shaped groove, the handle produces a rising edge to trigger the external interrupt when exiting the V-shaped groove, the single chip detects the external interrupt, each time the release, after the motor has rotated 1 cycle, the single chip executes the shutdown of the motor in the interrupt service procedure, ensuring that the motor has rotated at least 1 cycle, also ensuring the release of the heavy object.

9. The timed release according to claim 6, characterised in that the said single-chip microcomputer and relay are powered by 5V.

10. A timed release as claimed in claim 6, characterised in that the motor is supplied with 12V.