CN114991875B - Self-driven motion conversion device - Google Patents
Self-driven motion conversion device Download PDFInfo
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- CN114991875B CN114991875B CN202210407463.4A CN202210407463A CN114991875B CN 114991875 B CN114991875 B CN 114991875B CN 202210407463 A CN202210407463 A CN 202210407463A CN 114991875 B CN114991875 B CN 114991875B
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- 230000033001 locomotion Effects 0.000 title claims abstract description 51
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 37
- 239000012530 fluid Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
- F01D1/06—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines traversed by the working-fluid substantially radially
- F01D1/08—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines traversed by the working-fluid substantially radially having inward flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- 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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
The application provides a self-driven motion conversion device, which comprises a driving part shell, a driving part and a driving part, wherein the driving part shell is provided with a closed inner cavity; the driving part inner tube is fixed in the inner cavity of the driving part shell; the mass block is in airtight sliding connection with the inner cavity of the driving part shell and the outer wall of the inner tube of the driving part; the driving part elastic piece is connected between the mass block and the driving part shell; under the action of no external force, the driving part elastic piece enables the mass block to be positioned in the middle of the inner cavity of the driving part shell, and the inner cavity of the driving part shell is divided into two airtight cavities by the mass block; one end of the inner tube of the driving part is communicated with one of the airtight cavities; an inlet check valve communicated with the airtight cavity; the outlet check valve is communicated with the other end of the inner tube of the driving part and is communicated with the other airtight cavity; and the turbine is communicated with the outlet of the outlet check valve. The device does not require a firm connection of the housing to the ground, and can be installed in particular in vessels operating on the sea surface.
Description
Technical Field
The application relates to the technical field of power conversion devices, in particular to a self-driven motion conversion device.
Background
In daily life, some objects generate vibration or fluctuation movements, wherein particularly, the ship sailing on the sea is more remarkable, the ship can bump up and down along with sea waves, and the fluctuation movements are not seen by people in the past, but the fluctuation movements can also utilize the energy sources in the form so as to promote the progress of energy conservation and emission reduction in China. In the prior art, devices for utilizing wave energy are also available, but the collection and utilization of wave energy are basically completed by arranging a buoyancy device in a frame fixedly supported by a seabed or a shore, and the mode of utilizing the buoyancy device can only convert motion after the fixed frame is used for forming relative motion with a movable part, so that equipment can be fixedly erected at a fixed point for use, for example, for a ship sailing on the sea, the existing device cannot be applied because of the continuous conversion of the position of the equipment.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to overcome the defect that the conversion can be carried out only after the relative movement between the fixed frame and the movable piece is formed in the prior art, so as to provide the self-driven movement conversion device capable of moving along with the fluctuation movement.
In order to solve the above technical problems, the present application provides a self-driven motion conversion device, including:
the driving part shell is provided with an inner cavity, and the inner cavity is provided with a first air outlet end and a second air outlet end;
the driving part inner tube is provided with a tube air inlet and a tube air outlet, and the tube air inlet is communicated with the first air outlet end of the inner cavity;
the mass block is arranged in the inner cavity, and airtight sliding connection is formed between the mass block and the inner cavity; the two ends of the mass block are in one-to-one correspondence with the first air outlet end and the second air outlet end to form an airtight cavity; a driving part elastic piece for resetting the mass block is arranged in the airtight cavity;
the inlet check valves are at least arranged at a first air outlet end and a second air outlet end of the inner cavity; the air inlet end of the inlet one-way valve is communicated with the outside, and the air outlet end of the inlet one-way valve is communicated with the inner cavity;
the air inlet end of the outlet check valve is communicated with the second air outlet end and the air outlet of the pipe, and the air outlet end of the outlet check valve is communicated with the output device.
Optionally, the driving part inner tube is arranged in the inner cavity of the driving part shell;
the mass block is sleeved on the inner tube of the driving part in an annular manner, and the mass block is in airtight sliding connection with the outer wall of the inner tube of the driving part;
the second air outlet end and the pipe air outlet are positioned on the same side of the driving part shell.
Optionally, the output device is a turbine.
Optionally, the turbine comprises:
the spiral case is provided with a turbine cavity, and the outer side of the turbine cavity is provided with a communicated spiral case air passage;
the turbine is arranged in the turbine cavity;
the volute airway is arranged around the turbine and is in a spiral involute shape; the outlet check valve is communicated with the outer end of the volute airway.
Optionally, the width of the volute airway in the turbine axis direction gradually decreases from the outer end to the inner end.
Optionally, the volute airway is communicated with the turbine cavity through a through groove, and the width of the through groove is not larger than the width of the inner end of the volute airway in the turbine axis direction.
Optionally, the outlet check valve includes:
the valve seat is connected between the driving part shell and the turbine and is provided with a valve seat inlet, a valve seat outlet and a valve cavity; the valve cavity is communicated between the valve seat inlet and the valve seat outlet, the valve seat inlet comprises an outer flow channel and an inner flow channel, the inner flow channel is communicated with the pipe air outlet, and the outer flow channel is communicated with the second air outlet end;
the inner valve core is arranged in the valve cavity, so that fluid flows unidirectionally from the inner flow passage to the valve seat outlet;
the outer valve core is arranged in the valve cavity, so that fluid flows unidirectionally from the outer flow channel to the valve seat outlet.
Optionally, the outlet check valve further includes:
the one-way valve inner tube is fixed in the valve cavity and is communicated with the inner flow passage;
the inner valve core is arranged in the inner pipe of the one-way valve; the outer valve core is sleeved outside the inner pipe of the one-way valve.
Optionally, the outlet check valve is connected with the turbine through a rubber tube, and the rubber tube is arranged in an S shape.
Optionally, the driving part elastic piece makes the quality piece be located the middle part of driving part casing inner chamber, all is provided with at the both ends of quality piece the driving part elastic piece, the driving part elastic piece is the spring, spring and quality piece and driving part casing butt.
By adopting the technical scheme, the application has the following technical effects:
1. the self-driven motion conversion device provided by the application does not need to firmly connect the driving part shell relative to the ground, so that the self-driven motion conversion device can be installed in a ship running on the sea surface, generates energy along with the movement of the ship, and does not need to be installed in a fixed place like the prior art equipment. In addition, the mass block of the device can output air flow outwards in two directions of reciprocating motion, so that the working efficiency is improved. The device is driven by air flow, so that a mechanical structure with high complexity and low transmission efficiency is avoided, and the working reliability and energy output capacity of the device are improved. And because of the energy storage effect of the elastic piece of the driving part, the external irregular vibration or jolt motion is weakened and converted into more regular reciprocating motion, and the stability of energy output is facilitated.
2. According to the self-driven motion conversion device provided by the application, the second air outlet end and the air outlet of the pipe are arranged on the same side of the driving part shell, so that the one-way valves are arranged in a concentrated manner, the whole structure of the device is compact, and the occupied volume is reduced.
3. The self-driven motion conversion device provided by the application has the advantages that the output device is a turbine, intermittent air flow formed by up-and-down motion of the mass block is output into continuous rotation, so that the output has stability and continuity, and the working efficiency of the device is improved.
4. The self-driven motion conversion device provided by the application adopts the spiral involute-shaped volute air passage, and ensures that the airflow flowing through the spiral involute-shaped volute air passage always keeps strong in front and back through the reduction of the volume of the air passage, and the turbine can uniformly bear force and rotate after being distributed around the turbine at 360 degrees basically, so that the turbine is conveniently pushed to output power, and the energy conversion efficiency is improved.
5. The self-driven motion conversion device provided by the application not only gradually reduces the height of the volute airway, but also gradually reduces the width of the volute airway, so that the self-driven motion conversion device is more in line with the trend of reducing the airflow from the outer end to the inner end of the volute airway.
6. According to the self-driven motion conversion device provided by the application, through the arrangement of the corresponding through grooves, on one hand, blown air flows are more focused, and then the blown air flows are acted on the blade area of the turbine which can play the most effect after being blown out from the through grooves, on the other hand, the narrower through grooves can keep the pressure of the air flows in the air passage of the volute, so that the consistency of the air flows is kept before and after the air flows, the turbine is favorably and uniformly pushed, and the conversion efficiency is improved.
7. The self-driven motion conversion device provided by the application adopts the outlet check valve with the double valve cores, and the two check valves which can be originally connected with the inner pipe of the driving part and the lower cavity respectively are structurally integrated, so that the structure is more compact and reasonable, the connection with a subsequent turbine is also convenient, and the assembly working hour is reduced.
8. The self-driven motion conversion device provided by the application adopts the structure that the annular outer valve core is sleeved on the inner valve core, and fully utilizes the cross section area of the valve seat, so that the valve core is easier to push.
9. The self-driven motion conversion device provided by the application is convenient to arrange by using a rubber pipe connection mode. And the S-shaped rubber tube can not limit the movement amplitude of the driving part shell, so that the applicability of the device is improved.
10. The self-driven motion conversion device provided by the application adopts a structure with double compression springs, so that the difficulty of assembly operation is reduced, the steps are simplified, and the production and the manufacture are facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present application;
FIG. 2 is a cross-sectional view at A-A in FIG. 1;
fig. 3 is a partially enlarged view at B in fig. 1.
Reference numerals illustrate:
1-drive part shell, 2-inlet check valve, 3-outlet check valve, 4-rubber tube, 5-spiral case air flue, 6-turbine, 7-spiral case, 8-turbine, 9-lower chamber spring, 10-drive part inner tube, 11-mass block, 12-upper chamber spring, 13-valve cavity, 14-output shaft, 15-through slot, 16-turbine chamber, 17-air outlet, 18-valve seat, 19-inner runner, 20-outer runner, 21-inner valve core, 22-check valve inner tube, 23-inner core spring, 24-valve seat outlet, 25-outer core spring, 26-outer valve core, 27-valve seat inlet.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present application described below may be combined with each other as long as they do not collide with each other.
The embodiment provides a self-driven motion conversion device.
In one embodiment, as shown in fig. 1, it comprises: a driving part shell 1, a driving part inner pipe 10, a mass block 11, an inlet check valve 2 and an outlet check valve 3. The drive section housing 1 has an inner cavity provided with a first air outlet end and a second air outlet end. The driving part inner tube 10 is provided with a tube air inlet and a tube air outlet, and the tube air inlet is communicated with the first air outlet end of the inner cavity. The mass block 11 is arranged in the inner cavity, and the mass block 11 and the inner cavity form airtight sliding connection, specifically, in the embodiment, the mass block 11 and the driving part shell 1 form airtight sliding fit connection through an O-shaped ring. Two ends of the mass block 11 are in one-to-one correspondence with the first air outlet end and the second air outlet end to respectively form an upper cavity and a lower cavity; a driving part elastic member for resetting the mass block 11 is provided in the airtight chamber. The plurality of inlet check valves 2 are at least arranged at a first air outlet end and a second air outlet end of the inner cavity; the air inlet end of the inlet check valve 2 is communicated with the outside, and the air outlet end of the inlet check valve 2 is communicated with the inner cavity. The air inlet end of the outlet check valve 3 is communicated with the second air outlet end and the pipe air outlet, and the air outlet end of the outlet check valve 3 is communicated with an output device for power output.
In use, the device secures the drive unit housing 1 to an object that is subject to vibration or oscillatory motion and causes the drive unit inner tube 10 to axially generally follow the direction of reciprocation, such as in the case of a marine vessel, to a bow of a ship where the pitch is large, and positions the drive unit housing 1 vertically. Then, as the ship bumps, the mass 11 undergoes a retarded relative movement with respect to the drive section case 1 due to its own inertia, so that the airtight chambers on the respective sides are pressed to flow the gas from the outlet-direction check valve 3 into the output device, so as to drive the functional devices such as the generator. At the same time, the airtight cavity on the other side expands, air is sucked from the inlet check valve 2, and then the mass block 11 extrudes the airtight cavity on the other side again under the reset action of the elastic piece of the driving part and the reciprocating return action, so that air flow is continuously generated to push the output device. It should be noted that, although gas is used as the pressure medium in the discussion, it is obvious that liquid may be used as the pressure medium, but gas is preferably used, and the inertia of the gas is small, so that the mass block 11 is facilitated; secondly, the gas has compressibility, weakens the difference between the peaks and the valleys of the output gas flow to a certain extent, and is beneficial to the stable output of the output device.
The device uses the inertia of the inner mass block 11 to generate motion relative to the driving part shell 1, compared with the mode of generating relative motion in a fixed frame by using a buoyancy device for converting energy, the device does not need to fix the frame, namely the driving part shell 1 does not need to be firmly connected relative to the ground, so the device can be installed in a ship running on the sea surface, generates energy when moving along with the ship (obviously can also be installed on a car with bumpy road conditions), and does not need to be installed in a fixed place like the prior art equipment. The mass block 11 of the device can output air flow outwards in two directions of reciprocating motion, so that the working efficiency is improved. The device is driven by air flow, so that a mechanical structure with high complexity and low transmission efficiency is avoided, and the working reliability and energy output capacity of the device are improved. And because of the energy storage effect of the elastic piece of the driving part, the external irregular vibration or jolt motion is weakened and converted into more regular reciprocating motion, and the stability of energy output is facilitated.
Based on the above embodiment, in a preferred embodiment, as shown in fig. 1, the driving part inner tube 10 is disposed in the inner cavity of the driving part housing 1; the mass block 11 is sleeved on the inner tube 10 of the driving part in an annular manner, and the mass block 11 is in airtight sliding connection with the outer wall of the inner tube 10 of the driving part; the second air outlet end and the pipe air outlet are positioned on the same side of the driving part shell 1.
In this embodiment, the driving part inner tube 10 is disposed in the driving part housing 1, so that after the mass block 11 presses the upper cavity, the gas passes through the driving part inner tube 10 and then enters the outlet check valve 3, so that the second outlet end and the tube outlet are arranged on the same side of the driving part housing 1, and the check valve 3 is arranged in a concentrated manner, so that the whole structure of the device is compact, and the occupied volume is reduced.
Based on the above embodiment, in a preferred embodiment, the output device is a turbine 8, and the turbine 8 is designed in a turbine blade structure, so that intermittent air flow formed by up-and-down movement of the mass block 11 is output into relatively continuous rotation, so that the output has stability and continuity, and the working efficiency of the device is improved.
Based on the above embodiment, in a preferred embodiment, as shown in fig. 3, the directional check valve 3 includes: a valve seat 18, an inner spool 21 and an outer spool 26. The valve seat 18 is connected between the drive section housing 1 and the turbine 8, and has a valve seat inlet 27, a valve seat outlet 24 and a valve chamber 13. The valve chamber 13 communicates between a valve seat inlet 27 and a valve seat outlet 24. The valve seat inlet 27 includes an outer flow passage 20 and an inner flow passage 19, the inner flow passage 19 communicating with the lower end of the drive portion inner tube 10, the outer flow passage 20 communicating with the lower chamber. Both the inner spool 21 and the outer spool 26 are disposed within the valve chamber 13. The inner spool 21 unidirectionally flows fluid from the inner flow passage 19 to the valve seat outlet 24. The outer spool 26 permits one-way fluid flow from the outer flow passage 20 to the valve seat outlet 24. It should be noted that the unidirectional valve core may take the form of a spring plug (such as a combination of the inner core spring 23 and the plug-type inner valve core 21, or a combination of the outer core spring 25 and the plug-type outer valve core 26) as in the present embodiment, or may take the form of a valve structure.
The outlet check valve 3 with the double valve cores is structurally integrated with the two check valves which can be originally connected with the inner pipe 10 of the driving part and the lower cavity respectively, so that the structure is more compact and reasonable, the connection with the subsequent turbine 8 is facilitated, and the assembly working time is reduced.
Based on the above embodiment, in a preferred embodiment, as shown in fig. 3, the outward check valve 3 further includes a check valve inner tube 22 that is fixed within the valve chamber 13 and communicates with the inner flow passage 19. The inner valve core 21 is arranged in the check valve inner pipe 22; and the outer valve core 26 is sleeved outside the check valve inner pipe 22.
The annular outer valve core 26 is sleeved on the inner valve core 21, and the cross section area of the valve seat 18 is fully utilized, so that the valve core is easier to push. Because the valve core is pushed and influenced by two factors, the air pressure is firstly high and low, and the air pressure acts on the area. The outer valve core 26 and the inner valve core 21 of the present embodiment occupy the cross-sectional area of the valve seat 18 together, and the valve seat 18 with the same diameter has as many air pressure acting areas as possible, so that the valve core is easier to be pushed open to realize air flow output without requiring too high pushing air pressure. And the corresponding function is realized only by the simple structure of arranging the check valve inner tube 22, and the check valve has the characteristics of simple manufacture and low manufacturing cost.
Based on the above embodiments, in a preferred embodiment, as shown in fig. 1 and 2, the turbine 8 comprises a volute 7 and a turbine 6. The volute 7 is provided with a turbine chamber 16. The turbine 6 is arranged in a turbine chamber 16, and as in the case of the prior art turbine, an output shaft 14 is arranged on the large end face of the turbine 6, and an air outlet 17 is arranged on the volute 7 near the small end of the turbine 6. The outer side of the turbine cavity 16 is provided with a communicated volute air passage 5. The volute air duct 5 is arranged around the turbine 6 and is in the form of a spiral involute as shown in fig. 1, i.e. the opening of the volute air duct 5 from the inner end to the outer end is gradually enlarged along a spiral line as seen in the direction of fig. 1. The outlet check valve 3 is communicated with the outer end of the volute airway 5.
Because the turbine 8 is in operation, the flow of air from the blades of the turbine 6 is continuously decreasing from the outermost end of the volute passage 5 where it is connected to the outlet-to-one-way valve 3 to the innermost end, the spiral involute-shaped volute passage 5 follows this trend of decreasing air flow. The air passages with equal opening degrees all around can face the problems that the air quantity near the joint of the outlet check valve 3 is large and then the air quantity is weakened, so that on one hand, the stress of the turbine 6 is unbalanced, the service lives of a shaft part and a corresponding bearing are unfavorable, and on the other hand, the friction force of a rotating shaft is increased due to uneven stress, so that the turbine 6 is difficult to push, and the conversion output of power is influenced. The spiral involute-shaped volute air passage 5 ensures that the air flow flowing through the spiral involute-shaped volute air passage is always strong in front and back through the volume reduction of the spiral involute-shaped volute air passage, and the turbine 6 can be uniformly stressed and rotated after being basically distributed around the turbine 6 at 360 degrees, so that the turbine 6 is conveniently pushed to output power, and the energy conversion efficiency is improved.
Based on the above embodiment, in a preferred embodiment, as shown in fig. 2, the width of the scroll air passage 5 in the axial direction of the turbine 6 is gradually reduced from the outer end to the inner end as viewed from the view direction. The aforementioned opening degree of the scroll air passage 5 can be understood as the height of the scroll air passage 5 in fig. 2, and the height of the scroll air passage 5 is not only gradually reduced, but also the width thereof is gradually reduced in the present embodiment so as to more conform to the decreasing trend of the air flow from the outer end to the inner end of the scroll air passage 5.
Based on the above embodiment, in a preferred embodiment, as shown in fig. 2, the scroll passage 5 communicates with the turbine chamber 16 through the through groove 15, and the width of the through groove 15 is not greater than the width of the inner end of the scroll passage 5 in the axial direction of the turbine 6. The width of the through groove 15 does not exceed the minimum width of the end-most volute air passage 5, that is, the difference between the width of the volute air passage 5 closer to the front end of the air flow and the width of the through groove 15 is larger, as shown by the through groove 15 connected with the lower volute air passage 5 in fig. 2, the structure ensures that the blown air flow is more focused on one hand, and acts on the blade area of the turbine 6 which can exert the best effect after being blown out from the through groove 15, and on the other hand, the narrower through groove 15 ensures that the air flow in the volute air passage 5 keeps the pressure, ensures that the air flow keeps consistent front and back, is beneficial to uniformly pushing the turbine 6 and improves the conversion efficiency.
Based on the above embodiment, in a preferred embodiment, the check valve 3 is connected to the turbine 8 by a hose 4, as shown in fig. 1. Because the part with the largest vibration or fluctuation (such as the bow) and the place needing the power output (such as the cabin) are not located at the same place, the device can be conveniently arranged through the rubber pipe connection, the air pressure transmission advantage is reflected again, the power can be transmitted to a far place without setting complicated and numerous mechanical transmission parts, and the device is extremely convenient to install and arrange.
Based on the above embodiment, in a preferred embodiment, the hose 4 is provided in an S-shape as shown in fig. 1. Sometimes the device can also be used on some equipment with larger vibration, and the vibration equipment is not far away from the place where the power is needed, so that the device is generally output on the adjacent ground. Because the rubber tube 4 cannot be stretched and compressed in the axial direction, if the shorter rubber tube 4 is used for connection, the movement amplitude of the driving part housing 1 is sometimes limited, and the S-shaped rubber tube 4 does not have the limitation, so that the applicability of the device is improved.
Based on the above embodiment, in a preferred embodiment, as shown in fig. 1, the driving part elastic members are disposed in both the airtight chambers, and the driving part elastic members are springs, which are abutted against the mass block 11 and the driving part housing 1. Specifically, this embodiment is realized by an upper chamber spring 12 provided in the upper chamber and a lower chamber spring 9 provided in the lower chamber, both of which are abutted between the mass block 11 and the drive unit casing 1. Compared with a structure which only adopts one spring with stretching and compressing functions, the structure of the upper spring and the lower spring enables the springs to play the role of the pressure springs, and special fixing is not needed for the mass block 11 and the driving part shell 1 in order to avoid detachment like a tension spring, so that the assembly operation difficulty is reduced, the steps are simplified, and the production and the manufacturing are facilitated.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present application.
Claims (10)
1. A self-driven motion conversion device, comprising:
a drive section housing (1) having an inner cavity provided with a first air outlet end and a second air outlet end;
a driving part inner tube (10) provided with a tube air inlet and a tube air outlet, wherein the tube air inlet is communicated with the first air outlet end of the inner cavity;
the mass block (11) is arranged in the inner cavity, and the mass block (11) is in airtight sliding connection with the inner cavity; two ends of the mass block (11) are in one-to-one correspondence with the first air outlet end and the second air outlet end to form an airtight cavity; a driving part elastic piece for resetting the mass block (11) is arranged in the airtight cavity;
the inlet check valves (2) are at least arranged at a first air outlet end and a second air outlet end of the inner cavity; the air inlet end of the inlet one-way valve (2) is communicated with the outside, and the air outlet end of the inlet one-way valve (2) is communicated with the inner cavity;
the air inlet end of the outlet check valve (3) is communicated with the second air outlet end and the air outlet of the pipe, and the air outlet end of the outlet check valve (3) is communicated with the output device.
2. A self-driven motion conversion device according to claim 1, characterized in that the drive section inner tube (10) is arranged in the inner cavity of the drive section housing (1);
the mass block (11) is sleeved on the inner tube (10) of the driving part in an annular manner, and the mass block (11) is in airtight sliding connection with the outer wall of the inner tube (10) of the driving part;
the second air outlet end and the pipe air outlet are positioned on the same side of the driving part shell (1).
3. A self-driven motion conversion device according to claim 2, characterized in that the output device is a turbine (8).
4. A self-driven motion conversion device according to claim 3, characterized in that the turbine (8) comprises:
the spiral case (7) is provided with a turbine cavity (16), and the outer side of the turbine cavity (16) is provided with a communicated spiral case air passage (5);
a turbine (6) disposed within the turbine chamber (16);
the volute airway (5) is arranged around the turbine (6) and is in a spiral involute shape; the outlet check valve (3) is communicated with the outer end of the volute airway (5).
5. A self-driven motion conversion device according to claim 4, characterized in that the width of the volute airway (5) in the axial direction of the turbine (6) gradually decreases from the outer end to the inner end.
6. A self-driven motion conversion device according to claim 5, characterized in that the volute airway (5) is in communication with the turbine chamber (16) through a through groove (15), the width of the through groove (15) being not greater than the width of the inner end of the volute airway (5) in the axial direction of the turbine (6).
7. A self-driven motion conversion device according to claim 3, characterized in that the outgoing check valve (3) comprises:
a valve seat (18) connected between the drive unit housing (1) and the turbine (8) and having a valve seat inlet (27), a valve seat outlet (24) and a valve chamber (13); the valve cavity (13) is communicated between the valve seat inlet (27) and the valve seat outlet (24), the valve seat inlet (27) comprises an outer flow passage (19) and an inner flow passage (20), the inner flow passage (20) is communicated with the pipe air outlet, and the outer flow passage (19) is communicated with the second air outlet end;
an inner valve core (21) arranged in the valve cavity (13) and enabling fluid to flow unidirectionally from the inner flow passage (20) to the valve seat outlet (24);
an outer valve spool (26) disposed within the valve chamber (13) for unidirectional flow of fluid from the outer flow passage (19) to the valve seat outlet (24).
8. A self-driven motion conversion device according to claim 7, characterized in that the outgoing check valve (3) further comprises:
a check valve inner tube (22) fixed in the valve cavity (13) and communicated with the inner flow passage (20);
the inner valve core (21) is arranged in the one-way valve inner pipe (22); the outer valve core (26) is sleeved outside the one-way valve inner pipe (22).
9. A self-driven motion conversion device according to claim 3, characterized in that the outlet check valve (3) is connected to the turbine (8) by means of a hose (4), the hose (4) being arranged in an S-shape.
10. The self-driven motion conversion device according to claim 1, wherein the driving part elastic member enables the mass block (11) to be located in the middle of the inner cavity of the driving part shell (1), the driving part elastic members are arranged at two ends of the mass block (11), and the driving part elastic members are springs, and the springs are abutted with the mass block (11) and the driving part shell (1).
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| CN202210407463.4A CN114991875B (en) | 2022-04-18 | 2022-04-18 | Self-driven motion conversion device |
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