CN116044694A - Mechanism for obtaining moment and device thereof - Google Patents
Mechanism for obtaining moment and device thereof Download PDFInfo
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- CN116044694A CN116044694A CN202211177879.8A CN202211177879A CN116044694A CN 116044694 A CN116044694 A CN 116044694A CN 202211177879 A CN202211177879 A CN 202211177879A CN 116044694 A CN116044694 A CN 116044694A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
Abstract
The invention discloses a mechanism for obtaining moment and a device thereof, belonging to the technical field of energy conservation. The rotary body is characterized by comprising a plurality of air channels, wherein the radial two ends of each air channel are communicated with the outside through air holes, the air channels incline to the rotating direction or one section of the air channels runs along the rotating direction, and a throttling mechanism is arranged in the interval; when the device is a component of the motor or is coaxially and fixedly connected with a rotary dragging mechanism such as the motor and the like for rotation, according to Bernoulli's law, atmospheric static pressure difference is generated between vent holes at two ends, and air flows in an air duct due to centrifugal force and air viscosity; when the air flow flows through the throttling mechanism, the friction force and impact force of the air flow on the air channel are in the same direction as the rotation direction, and the forces have moment arms, so that the moment is contributed; compared with the prior art, the device has obvious energy-saving effect. The invention can be applied to the components such as a rotor, a ventilation type brake disc, a hub and the like of the air-cooled motor, and the components can generate torque while maintaining the original functions, so that the energy is saved.
Description
Technical Field
The invention belongs to the technical field of energy conservation.
Background
In recent decades, the problems of energy shortage and environmental pollution have become the focus of world attention, and because of the excessive application of fossil energy, the emission of carbon dioxide in large quantities, global climate warming, extreme weather and natural disaster frequency, the traditional high-energy consumption and high-pollution economic growth modes are transformed in various countries of the world, and the invention and application of energy-saving technology are encouraged and advocated.
In production and life, a large number of ventilated rotary members having a heat dissipation function, such as ventilated brake discs and cylinder-like structures, are used. The prior art of ventilation type rotary parts usually adopts a smooth air duct, and focuses on ventilation and heat dissipation functions; however, the rotating component usually operates under a high-rotation-speed working condition, the high-speed airflow in the ventilation air duct moves extremely complicated, and the energy consumption is extremely serious due to numerous factors such as friction, turbulence and vortex.
The prior art is extremely lack of energy-saving technology of ventilation type rotary parts.
Heretofore, no technology and apparatus for achieving energy conservation by means of torque using aerodynamic principles, throttle principles and structural innovations on ventilated rotary members has been presented.
In summary, the invention and application of the energy-saving technology are more urgent.
Disclosure of Invention
In order to solve the problems and technical progress, we invented a method and device for obtaining moment, which is characterized in that; an apparatus having the following structure; the device is a component of a rotary dragging mechanism or is coaxially and fixedly connected with the rotary dragging mechanism such as a motor to rotate together, and the working environment is a natural atmosphere environment; the device is a cylindrical or disc-shaped revolving body, has a fixed revolving direction, and consists of a revolving shaft and a plurality of identical hollow cavity bodies communicated with the outside, namely air channels, wherein the air channels are symmetrically distributed or equally spaced by the revolving shaft; the radial direction of the air duct, one end of the air duct is close to the rotary shaft, the air duct starts to extend along the radial direction from the position for a length L1, then turns to the rotary direction for a length L2, turns to the radial direction for a length L3 to the outer circle, and the radial section of the whole air duct is a broken line which extends from the circle center to the circumference, and is called as a broken line air duct; the L1 section air duct is communicated with the outside through a through hole close to the axle center on the axial end surface, or is communicated with the outside through a radial inner end surface through hole of a radial step of the revolving body, and is called an inner end air inlet; the outer end of the L3 section is communicated with the outside through a through hole on the circumferential surface and is called an outer end air outlet hole, and the area of the outer end air outlet hole is larger than that of the inner end air inlet hole; the area of the flow cross section of the L2 section of air flow is at least less than 1/2 of the area of the air outlet hole; one or more throttling mechanisms are built in the L2 section air duct; the L2 section is preferably a circumferentially-oriented snake-shaped air duct, the radial cross section of the air duct is in a zigzag shape staggered up and down, and the radial zigzag space is smaller than the circumferential saw tooth root space, so that a throttling mechanism is formed; or the L2 air duct is a smooth air duct, a plurality of axially oriented strip-shaped components are fixed in the air duct, the radial size of the strip-shaped components is smaller than that of the L2 air duct, a throttling mechanism is formed, or the strip-shaped components completely block the air duct, and the throttling mechanism is formed through one or a plurality of holes on the strip-shaped components;
or the air duct of the revolving body inclines towards the revolving direction, the radial section of the air duct is a smooth inclined curve, the L1, L2 and L3 sections are smoothly connected and are called as curve air duct, a serpentine channel is optimized at the position close to the air outlet hole at the outer end, and a throttling mechanism is constructed by the method;
the working principle is as follows; the rotary body is a component of a rotary dragging mechanism or is coaxially and fixedly connected with the rotary dragging mechanism such as a motor for rotation, when the dragging mechanism rotates at a certain rotation speed according to the rotation direction of the rotary body, the air outlet hole at the outer end of the air channel has a larger rotation radius than the air inlet hole at the inner end, the air outlet hole at the outer end has a larger linear speed than the air inlet hole at the inner end, and the air static pressure P1 at the air outlet hole at the outer end of the rotary body is smaller than the air static pressure P2 at the air inlet hole at the inner end according to Bernoulli's law, namely, the air static pressure difference delta P=P2-P1 is generated between the through holes at the two ends of the air channel; centrifugal force and viscosity of outside flowing air also exist; the three factors enable air to flow into the air channel from the air inlet hole at the inner end and flow out from the air outlet hole at the outer end, and the outflow speed is V1; the friction force direction of the air flow to the air channels is from inside to outside along the radial direction, and no resistance moment is formed to rotation; the air flow cross section S2 of the air duct L2 section is smaller than the cross section S1 of the outer end through hole, a method of increasing the ratio of S1 to S2 is adopted according to the law of conservation of fluid mass, so that the air flow velocity V2 at the L2 position is larger than V1, V2 is larger than the linear velocity V3 of a revolving body at the position, and the absolute velocity of air flow at the position is DeltaV=V2-V3; when the air flow flows through the throttling mechanism of the L2 section by delta V, the force F1 generated by the pressure difference at the two ends of the throttling mechanism is in the same direction as the rotation direction, the resultant force F2 of friction force and impact force of the air flow received by the L2 section is also in the same direction as the rotation direction, and the force arms of the F1 and F2 are the rotation radiuses where the forces are located, so that the F1 and F2 generate moment in the same direction as the rotation direction, and all air channels are the same; because the power=moment×the rotating speed, the device saves energy compared with a device with a smooth air duct under the same working condition; the working principle is also applicable to a curve air duct, wherein the component force of the friction force and the impact force of the air flow in the curve air duct in the rotation direction forms moment, and the radial component force does not form resistance moment;
the working principle is as follows; in the known theory, the gas does not output work outwards in the gas throttling process, and is an adiabatic process without heat exchange with the outside; after throttling, the gas is reduced in pressure, temperature, flow speed and density, and the theory considers that the kinetic energy loss of the gas flow is small; therefore, the air duct L2 section is provided with a plurality of throttling mechanisms, and the revolving body can meet the functional requirements of ventilation and heat dissipation;
obviously, the following features are also present;
the higher the revolving body rotation speed is, the larger the distance between the holes at the two ends of the air channel is, the larger the pressure difference between the holes at the two ends of the air channel is, and the larger the airflow speed in the air channel is; the larger the ratio of the area S1 of the air duct outer end hole to the sectional area S2 of the air duct L2 is, the larger the absolute speed of the air flow at the air duct is, the better the L2 section throttling effect is, and the larger the obtained moment is; the upper limit of the revolving body rotation speed is the rotation speed when the airflow speed at the minimum airflow cross section area in the air duct is close to the sound speed; the surface of the revolving body is smooth; the revolving body is in dynamic balance and is fixedly connected with the rotating mechanism coaxially, or the other end of the revolving body is connected with the fixing piece through parts such as a bearing, so that the revolving stability and the safety are improved;
the following preferred features are also provided;
or a plurality of grooves which are radially and equidistantly arranged on the circumferential surface of the revolving body are communicated with the air duct L3, the inner cavity of the L3 section is circumferentially expanded, the sum of the circumferential areas of all through hole grooves is the area of the air outlet, and the structure increases the area of the air outlet and reduces the air resistance;
the following preferred features are also provided;
the method is applied to the ventilation type brake disc of the vehicle, the ventilation type brake disc has a rapid heat dissipation function during braking, and an air channel is formed by the disc surface and the ribs; by applying the invention, ribs are distributed at equal intervals and incline to the rotating direction, the air inlet holes are positioned on the radial inner end surface of the radial step, the air outlet holes are positioned on the circumferential surface, and throttle mechanisms are arranged as many as possible at the position close to the outer circumference;
the following preferred features are also provided;
the method is applied to rotor cores of air-cooled motors and generators, the electromechanical equipment is provided with a fan which is coaxially connected to force air blowing or air suction to dissipate heat inside the equipment, and air flow can flow in a gap between a stator and a rotor; according to the invention, the air outlet hole is arranged on the radial outer circumferential surface of the rotor, the air inlet hole is arranged on the end surface of the rotor close to the axis or on the through hole shaft outside the device, the through hole shaft is communicated with the cavity of the rotor to form an air channel, the L2 section is close to the outer circumferential surface of the rotor, and the L2 section is provided with the throttling mechanism;
the following preferred features are also provided;
applying the method to an automobile hub; the spoke and the rim are internally provided with inner cavities which are communicated to form an air channel, the air inlet hole is arranged at the position, close to the axle center, of the spoke, the air outlet hole is arranged on the leeward surface, close to the rim, of the adjacent spoke, the rim is internally provided with an L2 section air channel, and the L2 section is provided with a throttling mechanism; because the air outlet holes are arranged on the lee surface of the spoke, the added resistance moment is small due to the addition of the air duct, and the obtained moment is large, so that the energy-saving effect is achieved compared with the original structure.
The innovation point of the invention is the protection scope;
1. by utilizing an aerodynamic principle, a throttling principle and an air duct structure innovation, a broken line air duct L1, an L2 and an L3 are constructed on an air duct of the ventilation type rotary device, wherein the trend of an L2 section is consistent with the rotary direction of the rotary body, and a throttling mechanism is constructed in the L2 section air duct;
2. the air flow velocity larger than the linear velocity of the revolving body at the position is obtained on the L2 section by increasing the ratio of the air vent area to the air flow cross section of the L2 section air duct, so that throttling can be realized;
3. after throttling, the direction of force generated by the pressure difference is the same as the rotation direction, and the force arm is the turning radius where the throttling mechanism is located, so that the moment in the same direction as the rotation direction is obtained;
4. the friction force and impact force direction of the L2 section air flow to the air duct are in the same direction as the rotation direction of the revolving body, and the force arm is the revolving radius where the force is located, so that the moment in the same direction as the rotation direction is obtained;
5. because the power=moment×the rotating speed, the energy is saved compared with the revolving body of the smooth air duct, and the energy saving effect is obvious.
2. All innovation points are covered and are suitable for the curve air duct.
The beneficial effects of the invention are that
1. The energy-saving method of the invention is an innovation of an energy-saving method by applying aerodynamics, a throttling principle and a structural innovation of a rotating part, so that the rotating part with the ventilation air duct obtains moment in the same direction as the rotating direction, thereby saving energy.
2. The invention can be applied to rotary parts with ventilation and cooling functions such as a ventilation type brake disc, an air-cooled motor rotor and the like, not only maintains the functions of the original parts, but also has energy-saving effect, and changes the structure and the manufacturing process of the original parts little; even though the torque obtained is small, the energy saving effect is significant because the component normally operates at high rotational speed conditions, power = torque x rotational speed.
3. The invention can be applied to automobile hubs, and the exhaust holes are distributed on the lee surface of the spoke by utilizing the structural characteristics of the hubs, so that the increased air resistance moment is small, the obtained moment is large, and the energy-saving effect is achieved.
4. The production and usage of ventilation type rotating parts such as ventilation type brake disc, motor rotor, hub and the like are huge in astronomical sense; the invention can obtain huge energy-saving effect, which is beneficial to energy saving and emission reduction.
Drawings
Fig. 1 is a diagram of a split-body bobbin of a revolving body:
marked in the figure; 1. a revolving body; 2. an air duct L1 section; 3. a snake-shaped air duct L2 section and a throttling mechanism; 4. an air duct L3 section; 5. an air outlet hole; 6. A shaft hole; 7. a rotor end cap; 8. a rotor end cap; 9. an air inlet hole; 10. bolt holes.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
This example is a comparative test of the present invention with the prior art, while the technical route of the present invention can be verified.
It should be apparent that the embodiments described are merely exemplary of the preferred embodiments of the present invention and not all embodiments of the present invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to fall within the scope of the present invention.
Test purpose; compared with the prior art, the method verifies the technical route of the invention
1. Principle of the method; the functions of spindle load display, precise rotation speed control, convenient clamping, excellent protection and the like of the numerical control vertical machining center are applied, one end of the revolving body is connected with the spindle through the cutter handle, the other end of the revolving body is connected and fixed on the workbench through the bearing, the loads of the revolving body at different rotation speeds are tested, and data analysis and comparison are performed.
2. A method; manufacturing two revolving bodies A, B with identical external dimensions, wherein the air inlet holes, the air outlet holes, the air channels L1 and the air channels L3 of the two revolving bodies are identical, the section L2 of the revolving body A is a snake-shaped air channel, and 6 sawteeth are arranged up and down to form 3 throttling mechanisms, which is shown in figure 1 of the specification;
the air duct L2 section of the revolving body B is a smooth air duct;
continuously testing the idle load of the machine tool and the main shaft load of the revolving body A, B within the range of 0-4500rpm by using the rotating speed to amplify 50 rpm; the load of A, B was compared at the same rotation speed to confirm whether or not a moment was generated. Revolving body B can be regarded as representing the prior art.
3. A test site; the Harbin Galt machine manufacturing Co., ltd., address; the back longline village of double urban areas in Harbin city,
4. machine tool/model; sea-sky fine HTM-VMC1000L, machine tool number DX1406, control system; mitsubishi M70, maximum power 11Kw, maximum rotation speed 8000rpm, shank BT40, load minimum display 1% Kw,1% system, and machine load display 0%, 1%, 2%, 3%.
5. A revolving body A; a material; the aluminum alloy has the outer diameter of 265mm, the thickness of 100mm, four air channels, an L1 section with the cross section of 18mm multiplied by 90mm, an L2 section with the cross section of 5mm multiplied by 90mm, 6 saw teeth on the upper side and the lower side, the diameter of an air inlet at the inner end of 15mm and the number of air channels of 2/each air channel; the outer end air outlet holes are slotted, the slot width is 10mm, the number is 3, and the slot length at the through holes is 160 mm; the shaft diameter of the revolving body is 20mm; see fig. 1.
6. A revolving body B; an unblocked air duct with the cross section of 18mm multiplied by 90mm at the L2 position and the rest dimensions are the same as those of the revolving body A;
7. the sections of the L1 section and the L2 section of the revolving body A are identical; b is a clear air duct, so rotor B can be considered to represent the prior art.
A test process;
1. the machine tool is unloaded, and the relation between the rotating speed of the machine tool and the unloaded load is tested;
no load of the machine tool and test interval; 0-4500rpm, increasing the rotation speed by 50rpm each time, and continuously testing to obtain a group of data, wherein the load is positively related to the rotation speed; the starting point of load display change can be accurately captured when the rotating speed is increased by 50rpm, when the rotating speed is increased by 3600rpm, the machine tool load starts to display 1%, when the rotating speed is increased by 4500rpm, the machine tool load starts to display 2%, and the test repeatability is good.
2. Clamping a revolving body A by a main shaft;
a test section; 0-4500rpm, increasing the rotation speed by 50rpm each time, and continuously testing to obtain a group of data, wherein the load is positively related to the rotation speed; it was found that the bed load started to show 1% at 3050rpm and 2% at 3600 rpm.
3. Clamping a revolving body B by a main shaft;
a test section; 0-4500rpm, each time the rotation speed increases by 50rpm, a group of data is obtained, and the load is positively related to the rotation speed; it was found that the bed load started to show 1% at 2750rpm, 2% at 3300rpm and 3% at 3750 rpm.
Analyzing;
1. qualitative analysis; comparing the machine load of the steps 2 and 3 shows that the rotating speed of the revolving body A is obviously delayed from that of the revolving body B when the load starts to be 1% and 2%, and particularly, the rotating speed of A, B is different by 300rpm when the load starts to be 2%. The test qualitatively proves that the moment is generated in the revolving body A.
2. Semi-quantitative analysis; since the machine load and the rotational speed are in a positive correlation and a nonlinear relationship, only a semi-quantitative rough analysis can be performed. We analyzed the energy-saving efficiency of revolution a relative to revolution B at 3600rpm,
(1) Machine tool no load p1=11000×1% =110w at 3600rpm, 11000w being machine tool maximum power.
(2) Rotor a has a load p2=11000×2% =220w at 3600rpm,
(3) Rotor B starts to exhibit a load of 2% -3% at rotational speed 3300-3750rpm, and a load increase at rotational speed 50rpm in this interval is approximately Δp= -11000× (0.03-0.02)/(3750-3300) ×50=12.2 w, so that a load p3=11000×0.02+ (3600-3300)/50×12.2= 293.2w at 3600rpm
(4) The revolving body A saves energy relative to the revolving body B when the revolving body A carries 2% of load at 3600 rpm; p3—p2=73.2w,
the energy saving efficiency is (P3-P2)/(P3-P1) =73.2/183=40%.
Air permeability verification;
(1) When the rotating body A rotates at a speed of more than 4000rpm, the load shows poor regularity, has a vibration phenomenon, has harsher and sharp wind sound at a higher rotating speed, and indicates that airflow congestion begins to appear at the section of the minimum air duct, and the airflow velocity is close to the sound velocity; the test shows that the air flow in the air duct flows, the flow speed of the air flow increases along with the increase of the rotating speed until the air flow is choked in the minimum cross-sectional area, and the air flow meets the explanation of aerodynamic theory.
(2) Conclusion (3); the air flow flows in the air duct of the revolving body, and when the revolving body A rotates at a speed of less than 4000rpm, the air flow in the air duct flows sufficiently, so that the ventilation and heat dissipation functions can be fully realized.
Conclusion (3); the qualitative test and the semi-quantitative test result show that the moment is generated in the revolving body A, and the revolving body A saves energy compared with the revolving body B under the same working condition, so that the energy-saving effect is obvious; the ventilation verification shows that when the rotating speed is less than 3800rpm, the air flow in the air duct of the revolving body A is sufficient, and the ventilation and heat dissipation functions can be realized; the experiments prove that the technical route of the invention is correct and feasible.
Claims (5)
1. A mechanism for obtaining moment and a device thereof are characterized in that the mechanism and the device are as follows; the device is a component of a rotary dragging mechanism or is coaxially and fixedly connected with the rotary dragging mechanism such as a motor to rotate together, and the working environment is a natural atmosphere environment; the device is a cylindrical or disc-shaped revolving body, has a fixed revolving direction, and consists of a revolving shaft and a plurality of identical hollow cavity bodies communicated with the outside, namely air channels, wherein the air channels are symmetrically distributed or equally spaced by the revolving shaft; the radial direction of the air duct, one end of the air duct is close to the rotary shaft, the air duct starts to extend along the radial direction from the position for a length L1, then turns to the rotary direction for a length L2, turns to the radial direction for a length L3 to the outer circle, and the radial section of the whole air duct is a broken line which extends from the circle center to the circumference, and is called as a broken line air duct; the L1 section air duct is communicated with the outside through a through hole close to the axle center on the axial end surface, or is communicated with the outside through a radial inner end surface through hole of a radial step of the revolving body, and is called an inner end air inlet; the outer end of the L3 section is communicated with the outside through a through hole on the circumferential surface and is called an outer end air outlet hole, and the area of the outer end air outlet hole is larger than that of the inner end air inlet hole; the area of the flow cross section of the L2 section of air flow is at least less than 1/2 of the area of the air outlet hole; one or more throttling mechanisms are built in the L2 section air duct; the L2 section is preferably a circumferentially-oriented snake-shaped air duct, the radial cross section of the air duct is in a zigzag shape staggered up and down, and the radial zigzag space is smaller than the circumferential saw tooth root space, so that a throttling mechanism is formed; or the L2 air duct is a smooth air duct, a plurality of axially oriented strip-shaped components are fixed in the air duct, the radial size of the strip-shaped components is smaller than that of the L2 air duct, a throttling mechanism is formed, or the strip-shaped components completely block the air duct, and the throttling mechanism is formed through one or a plurality of holes on the strip-shaped components;
or the air duct of the revolving body inclines towards the revolving direction, the radial section of the air duct is a smooth inclined curve, the L1, L2 and L3 sections are smoothly connected and are called as curve air duct, a serpentine channel is optimized at the position close to the air outlet hole at the outer end, and a throttling mechanism is constructed by the method;
the working principle is as follows; the rotary body is a component of a rotary dragging mechanism or is coaxially and fixedly connected with the rotary dragging mechanism such as a motor for rotation, when the dragging mechanism rotates at a certain rotation speed according to the rotation direction of the rotary body, the air outlet hole at the outer end of the air channel has a larger rotation radius than the air inlet hole at the inner end, the air outlet hole at the outer end has a larger linear speed than the air inlet hole at the inner end, and the air static pressure P1 at the air outlet hole at the outer end of the rotary body is smaller than the air static pressure P2 at the air inlet hole at the inner end according to Bernoulli's law, namely, the air static pressure difference delta P=P2-P1 is generated between the through holes at the two ends of the air channel; centrifugal force and viscosity of outside flowing air also exist; the three factors enable air to flow into the air channel from the air inlet hole at the inner end and flow out from the air outlet hole at the outer end, and the outflow speed is V1; the friction force direction of the air flow to the air channels is from inside to outside along the radial direction, and no resistance moment is formed to rotation; the air flow cross section S2 of the air duct L2 section is smaller than the cross section S1 of the outer end through hole, a method of increasing the ratio of S1 to S2 is adopted according to the law of conservation of fluid mass, so that the air flow velocity V2 at the L2 position is larger than V1, V2 is larger than the linear velocity V3 of a revolving body at the position, and the absolute velocity of air flow at the position is DeltaV=V2-V3; when the air flow flows through the throttling mechanism of the L2 section by delta V, the force F1 generated by the pressure difference at the two ends of the throttling mechanism is in the same direction as the rotation direction, the resultant force F2 of friction force and impact force of the air flow received by the L2 section is also in the same direction as the rotation direction, and the force arms of the F1 and F2 are the rotation radiuses where the forces are located, so that the F1 and F2 generate moment in the same direction as the rotation direction, and all air channels are the same; the working principle is also applicable to a curve air duct, wherein the component force of the friction force and the impact force of the air flow in the curve air duct in the rotation direction forms moment, and the radial component force does not form resistance moment; because power = torque x rotational speed, the device is energy efficient than a clear duct device under the same conditions.
2. A mechanism for obtaining torque and apparatus thereof according to claim 1, wherein; the method is applied to the ventilation type brake disc of the vehicle, the ventilation type brake disc has a rapid heat dissipation function during braking, and an air channel is formed by the disc surface and the ribs; by applying the invention, ribs are distributed at equal intervals and incline to the rotating direction, the air inlet hole is positioned on the radial inner end surface of the radial step, the air outlet hole is positioned on the circumferential surface, and the throttle mechanism is arranged near the outer circumference.
3. A mechanism for obtaining torque and apparatus thereof according to claim 1, wherein; the method is applied to rotor cores of air-cooled motors and generators, the electromechanical equipment is provided with a fan which is coaxially connected to force air blowing or air suction to dissipate heat inside the equipment, and air flow can flow in a gap between a stator and a rotor; according to the invention, the air outlet hole is arranged on the radial outer circumferential surface of the rotor, the air inlet hole is arranged on the end surface of the rotor close to the axis or on the through hole shaft outside the device, the through hole shaft is communicated with the rotor cavity to form an air channel, the L2 section is close to the outer circumferential surface of the rotor, and the L2 section is provided with the throttling mechanism.
4. A mechanism for obtaining torque and apparatus thereof according to claim 1, wherein; applying the method to an automobile hub; the spoke and the rim are internally provided with inner cavities which are communicated to form an air channel, the air inlet hole is arranged at the position, close to the axle center, of the spoke, the air outlet hole is arranged on the leeward surface, close to the rim, of the adjacent spoke, an L2 section air channel is arranged in the rim, and the L2 section is provided with a throttling mechanism.
5. A mechanism for obtaining torque and apparatus thereof according to claim 1, wherein; or a plurality of grooves which are radially and equidistantly arranged on the circumferential surface of the revolving body are communicated with the air duct L3, the inner cavity of the L3 section is circumferentially expanded, the sum of the circumferential areas of all through hole grooves is the area of the air outlet, and the structure increases the area of the air outlet and reduces the air resistance.
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| CN202211177879.8A CN116044694A (en) | 2022-09-18 | 2022-09-18 | Mechanism for obtaining moment and device thereof |
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| CN202211177879.8A CN116044694A (en) | 2022-09-18 | 2022-09-18 | Mechanism for obtaining moment and device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183840A (en) * | 2023-05-04 | 2023-05-30 | 四川交通职业技术学院 | Environment monitoring system for intelligent environmental protection engineering |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183840A (en) * | 2023-05-04 | 2023-05-30 | 四川交通职业技术学院 | Environment monitoring system for intelligent environmental protection engineering |
| CN116183840B (en) * | 2023-05-04 | 2023-06-30 | 四川交通职业技术学院 | Environment monitoring system for intelligent environmental protection engineering |
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