CN111189568A - Water vortex dynamometer - Google Patents
Water vortex dynamometer Download PDFInfo
- Publication number
- CN111189568A CN111189568A CN202010197033.5A CN202010197033A CN111189568A CN 111189568 A CN111189568 A CN 111189568A CN 202010197033 A CN202010197033 A CN 202010197033A CN 111189568 A CN111189568 A CN 111189568A
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- Prior art keywords
- rotor
- hole group
- stator
- blind hole
- blind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000009434 installation Methods 0.000 claims abstract description 15
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000011161 development Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
- G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
- G01L3/105—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving inductive means
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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
- Y02E10/20—Hydro energy
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides a water vortex dynamometer, which comprises a disc-shaped rotor, a stator, a speed measurement sensor, a force sensor and an installation base, wherein the rotor, the stator and the speed measurement sensor are all fixed on the installation base, the rotor is embedded in the stator, a gap is arranged between the rotor and the stator, the stator is provided with a water inlet and a water outlet which are communicated with the gap, the speed measurement sensor acts on the rotor, and the force sensor is arranged between the stator and the installation base. The water vortex dynamometer provided by the invention has the advantages of stable structure, light weight, small rotational inertia of the rotor, adaptability to high-speed rotation and capability of enabling the rotor shaft not to be limited by steering.
Description
Technical Field
The invention relates to the field of dynamometers, in particular to a water vortex dynamometer.
Background
The water eddy current dynamometer products are widely used in 60-70 abroad, and from 85 years, foreign products are introduced to carry out technical transformation in China to form a series of water eddy current dynamometer products, but in the past water eddy current dynamometer products, a rotor and a stator are both in a turbofan shape and have correspondingly large volumes, so that the rotational inertia of the rotor is also large, the allowable highest speed is relatively low and is generally below 3000rpm/min, along with the continuous improvement of the development of the motive power technology, particularly the development of a high-speed motor, a high-speed turboshaft engine and a gas engine in recent years is leaped, the power and the rotational speed of the prime motors are greatly improved in the technical development, the rotational speed is also changed from tens of thousands of revolutions to thousands of revolutions, the power even reaches thousands of kilowatts at such high speed, and the products also need corresponding high-rotational-speed high-power testing equipment in the research, development and production processes, in this context, we have developed a low inertia, high speed, high power hydraulic brake. The hydraulic dynamometer is provided with the stator and the rotor with special structures, and the performance requirements of products can be met on high power and high rotating speed of the products.
Disclosure of Invention
It is an object of the present invention to provide a water vortex dynamometer that addresses one or more of the above-mentioned problems of the prior art.
The invention provides a water vortex dynamometer, which comprises a disc-shaped rotor, a stator, a speed measurement sensor, a force sensor and an installation base, wherein the rotor, the stator and the speed measurement sensor are all fixed on the installation base, the rotor is embedded in the stator, a gap is arranged between the rotor and the stator, the stator is provided with a water inlet and a water outlet which are communicated with the gap, the speed measurement sensor acts on the rotor, and the force sensor is arranged between the stator and the installation base.
In some embodiments, the rotor comprises a rotor shaft and a rotor body, the rotor body is in a laminar disc-shaped structure, the rotor body is embedded in the stator, one end of the rotor shaft is inserted into the stator and connected with the rotor body, and the tachometer sensor acts on the rotor shaft; the stator comprises a left cover and a right cover, the left cover is connected with the right cover, the rotor body is arranged between the left cover and the right cover, the rotor shaft penetrates through the left cover to be connected with the rotor body, and the force sensor is arranged between the left cover and the installation base.
In some embodiments, the rotor body is provided with an annular through hole set, the left cover is provided with a non-through hole set corresponding to the through hole set on the end surface opposite to the rotor body, and the right cover is provided with an auxiliary non-through hole set corresponding to the through hole set on the end surface opposite to the rotor body.
In some embodiments, the through hole group includes a first through hole group and a second through hole group, the first through hole group and the second through hole group are of concentric circle structures, the center of a circle of a concentric circle is the center of a circle of the rotor body, the first through hole group includes a plurality of first through holes uniformly arranged in a circumferential direction, and the second through hole group includes a plurality of second through holes uniformly arranged in the circumferential direction.
In certain embodiments, the groups of blind holes and the auxiliary groups of blind holes are symmetrically distributed about the rotor body.
In some embodiments, the blind hole group includes an annular third blind hole group and an annular fourth blind hole group, the third blind hole group includes a plurality of third blind holes uniformly distributed in a circumferential direction, the fourth blind hole group includes a plurality of fourth blind holes uniformly distributed in a circumferential direction, the auxiliary blind hole group includes an annular fifth blind hole group and an annular sixth blind hole group, the fifth blind hole group includes a plurality of fifth blind holes uniformly distributed in a circumferential direction, the sixth blind hole group includes a plurality of sixth blind holes uniformly distributed in a circumferential direction, the fifth blind hole group corresponds to the third blind hole group, and the fourth blind hole group corresponds to the sixth blind hole group.
In some embodiments, the fifth blind hole group and the sixth blind hole group are concentric circles, the center of the concentric circles is the center of the right cover, and the center of the right cover is provided with the water inlet.
In some embodiments, the water outlet is arranged on the outer edge of the stator, a water outlet pipe is connected to the water outlet, and an electric control proportional valve is arranged on the water outlet pipe.
The water vortex dynamometer provided by the invention has the advantages that:
1) the rotor body is of a flaky disc-shaped structure, the weight is greatly reduced, the size is smaller compared with that of the conventional rotor, the rotational inertia of the rotor is greatly reduced, and meanwhile, the volute-shaped rotor structure is removed through the structural design, so that the rotor is suitable for high-speed rotation, and the highest speed can reach about 20000 r/min;
2) the stator is provided with a hole, so that the directionality of the turbofan is eliminated, and the rotor shaft is not limited by the steering;
3) the water vortex dynamometer provided by the invention has the advantages of stable structure and good temperature control effect.
Drawings
FIG. 1 is a schematic structural diagram of a water vortex dynamometer according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a rotor body according to an embodiment of the present invention;
FIG. 3 is a right side view of a rotor body in one embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a right cap according to an embodiment of the present invention;
FIG. 5 is a left side view of a right cap in one embodiment of the invention.
Detailed Description
As shown in fig. 1 to 5, a water vortex dynamometer includes a disk-shaped rotor, a stator, a speed sensor 5, a force sensor 4 and an installation base 6, wherein the rotor, the stator and the speed sensor 5 are all fixed on the installation base 6, the installation base 6 is provided with a joint bearing 8, the joint bearing 8 is connected with two ends of the force sensor 4 to ensure the free force of the force sensor 4, the rotor is embedded in the stator, a gap is arranged between the rotor and the stator to ensure the water storage capacity between the rotor and the stator,
the rotor comprises a rotor shaft 2 and a rotor body 7, the rotor body 7 is of a sheet disc-shaped structure, the rotor body 7 is embedded in the stator, one end of the rotor shaft 2 is inserted into the stator and connected with the rotor body 7, the rotor shaft 2 is connected with the rotor body 7 in a combined form of regular polygon fit (namely, the section of the part of the rotor shaft 2 connected with the rotor body 7 is of a regular polygon, the central position of the rotor body 7 is provided with a connecting hole, the shape of the connecting hole corresponds to that of the regular polygon, the rotor shaft passes through the connecting hole, the regular polygon can be a square, a regular pentagon, a regular hexagon and the like, preferably a regular pentagon structure), a self-centering fixed structure is formed, the concentricity requirement is ensured, the speed measuring sensor 5 acts on the rotor shaft 2, the speed measuring sensor 5 adopts a Hall switch sensor, the rotor body 7 is provided with an annular through hole group, the through hole group comprises a first through hole group and, the first through hole group and the second through hole group are of concentric circle structures, the circle center of a concentric circle is the circle center of the rotor body 7, the first through hole group comprises a plurality of first through holes 12 which are uniformly arranged annularly, the second through hole group comprises a plurality of second through holes 13 which are uniformly arranged annularly, and the aperture of each second through hole 13 is smaller than that of each first through hole 12;
the stator comprises a left cover 3 and a right cover 1, the left cover 3 is connected with the right cover 1, a rotor body 7 is arranged between the left cover 3 and the right cover 1, a rotor shaft 2 passes through the left cover 3 to be connected with the rotor body 7, a force sensor 4 is arranged between the left cover 3 and an installation base 6, the signal of the force sensor 4 is calculated by an instrument to obtain the torque, a non-through hole group is arranged on a corresponding through hole group on the end surface of the left cover 3 opposite to the rotor body 7, an auxiliary non-through hole group is arranged on a corresponding through hole group on the end surface of the right cover 1 opposite to the rotor body 7, the non-through hole group and the auxiliary non-through hole group are symmetrically distributed relative to the rotor body 7, the non-through hole group comprises an annular third non-through hole group and an annular fourth non-through hole group, the third non-through hole group comprises a plurality of third non-through holes 16 uniformly distributed in a plurality of annular directions, the fourth non-through hole group comprises a plurality of fourth non-through holes 17, the aperture of the third blind hole 16 is smaller than that of the fourth blind hole 17, the auxiliary blind hole group comprises an annular fifth blind hole group and an annular sixth blind hole group, the fifth blind hole group comprises a plurality of fifth blind holes 14 which are circumferentially and uniformly distributed, the sixth blind hole group comprises a plurality of sixth blind holes 15 which are circumferentially and uniformly distributed, the aperture of the fifth blind hole 14 is smaller than that of the sixth blind hole 15, the fifth blind hole group corresponds to the third blind hole group, the fourth blind hole group corresponds to the sixth blind hole group, the fifth blind hole group and the sixth blind hole group are in concentric circle structures, the center of the concentric circle is the center of the right cover 1, the center of the right cover 1 is provided with a water inlet 10, a water outlet 11 is arranged on the outer edge of the stator, the water outlet 11 is connected with a water outlet pipe, and the water outlet pipe is provided with an electric control proportional valve,
a sealing ring is arranged between the left cover 3 and the rotor shaft 2, pressure water in the stator is prevented from flowing into the bearing 5 through the sealing ring,
the rotor shaft 2 is supported in the bearing seat 3 through a bearing 5, a bearing sleeve 4 is arranged between the bearing 5 and the bearing seat 3, the right end of the bearing seat 3 is connected with the left end face of a left cover 6 through a bolt, the left end face of the bearing seat 3 is connected with the bearing cover 2 through a screw, the rotor shaft 2 passes through the bearing cover 2,
the center of the right cover 8 is provided with a water inlet 10, the outer edge of the left cover 6 is provided with a water outlet 11, the water inlet 10 and the water outlet 11 are both communicated with the gap, the water outlet 11 is connected with a water outlet pipe, and the water outlet pipe is provided with an electric control proportional valve.
In this embodiment, the rotor and the stator are both made of corrosion-resistant and wear-resistant metal material by casting, and the surface of the rotor is subjected to wear-resistant treatment of spraying, polishing and phenolic protection.
In this embodiment, the bearing 5 is lubricated and cooled in a lubrication manner, so that the service life of the bearing 5 is greatly prolonged.
In the embodiment, the electric control proportional valve adopts a servo proportional water drain valve, and the operability of the torque is effectively ensured through a computer program, so that the torque characteristic of the controller meets the performance requirement of a prime motor.
The working principle of the water vortex brake described in the embodiment is as follows:
cooling water is input into the gap through the water inlet 10, the rotor shaft 2 drives the rotor body 7 to realize the rotation of the rotor, when the rotor rotates at a high speed, a water vortex can be formed, meanwhile, vortex-shaped circulating water is continuously thrown out of the cavity under the action of centrifugal force, the water pressure is kept to be 3.5bar, the generated torque is increased along with the reduction of the flow, due to the first through hole group and the second through hole group arranged on the rotor, the third through hole group, the fourth through hole group, the fifth through hole group and the sixth through hole group arranged on the stator, the rotor can generate a load effect under the transmission of vortex water, when the width of the gap cavity (namely the distance between the rotor and the stator) is 2-2.5 mm, the proper load torque can be ensured to be generated between the rotor and the stator, and thus the cooling water under certain pressure and flow can form a vortex transmission torque in the rotor cavity, the water yield is controlled by an electric control proportional valve to generate stable and reliable load torque.
The foregoing is only a preferred form of the invention and it should be noted that several similar variations and modifications could be made by one skilled in the art without departing from the inventive concept and these should also be considered within the scope of the invention.
Claims (8)
1. The utility model provides a water vortex dynamometer, a serial communication port, including discoid rotor, the stator, tacho sensor (5), force sensor (4) and installation frame (6), the rotor, stator and tacho sensor (5) are all fixed in on installation frame (6), the rotor inlays to be established in the stator, be equipped with the clearance between rotor and the stator, be equipped with water inlet (10) and delivery port (11) with the clearance intercommunication on the stator, tacho sensor (5) are used in on the rotor, be provided with force sensor (4) between stator and the installation frame (6).
2. The eddy-current water brake as recited in claim 1, characterized in that the rotor comprises a rotor shaft (2) and a rotor body (7), the rotor body (7) is a laminar disc-shaped structure, the rotor body (7) is embedded in the stator, one end of the rotor shaft (2) is inserted into the stator and connected with the rotor body (7), and the tachometer sensor (5) acts on the rotor shaft (2); the stator comprises a left cover (3) and a right cover (1), the left cover (3) is connected with the right cover (1), a rotor body (7) is arranged between the left cover (3) and the right cover (1), a rotor shaft (2) penetrates through the left cover (3) to be connected with the rotor body (7), and a force sensor (4) is arranged between the left cover (3) and an installation base (6).
3. A water vortex brake according to claim 2, characterised in that the rotor body (7) is provided with an annular set of through-holes, that the left cover (3) is provided with a set of non-through-holes in the end surface opposite the rotor body (7), and that the right cover (1) is provided with a set of auxiliary non-through-holes in the end surface opposite the rotor body (7).
4. The eddy-current brake as claimed in claim 3, wherein the through hole set comprises a first through hole set and a second through hole set, the first through hole set and the second through hole set are concentric circles, the center of the concentric circles is the center of the rotor body (7), the first through hole set comprises a plurality of first through holes (12) which are circumferentially and uniformly arranged, and the second through hole set comprises a plurality of second through holes (13) which are circumferentially and uniformly arranged.
5. A water vortex brake according to claim 3, characterised in that the groups of blind holes and the auxiliary groups of blind holes are symmetrically distributed about the rotor body (7).
6. The eddy-current brake as claimed in claim 6, wherein the blind hole group includes an annular third blind hole group and an annular fourth blind hole group, the third blind hole group includes a plurality of annularly uniformly distributed third blind holes (16), the fourth blind hole group includes a plurality of annularly uniformly distributed fourth blind holes (17), the auxiliary blind hole group includes an annular fifth blind hole group and an annular sixth blind hole group, the fifth blind hole group includes a plurality of annularly uniformly distributed fifth blind holes (14), the sixth blind hole group includes a plurality of annularly uniformly distributed sixth blind holes (15), the fifth blind hole group corresponds to the third blind hole group, and the fourth blind hole group corresponds to the sixth blind hole group.
7. The eddy-current brake as claimed in claim 7, characterized in that the fifth and sixth groups of blind holes are concentric circles, the center of the concentric circle is the center of the right cover (1), and the center of the right cover (1) is provided with the water inlet (10).
8. The eddy-current brake as claimed in claim 1, wherein the water outlet (11) is arranged on the outer edge of the stator, and a water outlet pipe is connected to the water outlet (11) and provided with an electrically controlled proportional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197033.5A CN111189568B (en) | 2020-03-19 | 2020-03-19 | Water vortex dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010197033.5A CN111189568B (en) | 2020-03-19 | 2020-03-19 | Water vortex dynamometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111189568A true CN111189568A (en) | 2020-05-22 |
| CN111189568B CN111189568B (en) | 2024-10-15 |
Family
ID=70706897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010197033.5A Active CN111189568B (en) | 2020-03-19 | 2020-03-19 | Water vortex dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111189568B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183075A (en) * | 2022-12-30 | 2023-05-30 | 江苏联测机电科技股份有限公司 | Stator-rotor structure of a hydraulic dynamometer |
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| US5531107A (en) * | 1995-02-15 | 1996-07-02 | Ganzcorp Investments, Inc. | Method and apparatus for establishing virtual inertia in a chassis dynamometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183075A (en) * | 2022-12-30 | 2023-05-30 | 江苏联测机电科技股份有限公司 | Stator-rotor structure of a hydraulic dynamometer |
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| Publication number | Publication date |
|---|---|
| CN111189568B (en) | 2024-10-15 |
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Country or region after: China Address after: No. 222 Long'an North Road, Hai'an City, Nantong City, Jiangsu Province, 226600 Applicant after: Jiangsu Lanling Technology Co.,Ltd. Address before: 226000 11 Chaoyang North Road, Hai'an town, Hai'an County, Nantong City, Jiangsu Province Applicant before: JIANGSU LANMEC ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Country or region before: China |
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