CN113217555A - Automatic stall and overload prevention device for hydroelectric generator by utilizing thermal expansion - Google Patents

Automatic stall and overload prevention device for hydroelectric generator by utilizing thermal expansion Download PDF

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Publication number
CN113217555A
CN113217555A CN202110582606.0A CN202110582606A CN113217555A CN 113217555 A CN113217555 A CN 113217555A CN 202110582606 A CN202110582606 A CN 202110582606A CN 113217555 A CN113217555 A CN 113217555A
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CN
China
Prior art keywords
block
fixedly connected
stall
thermal expansion
power generation
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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.)
Withdrawn
Application number
CN202110582606.0A
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Chinese (zh)
Inventor
冯月茹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Duozixing Electromechanical Equipment Co ltd
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Foshan Duozixing Electromechanical Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan Duozixing Electromechanical Equipment Co ltd filed Critical Foshan Duozixing Electromechanical Equipment Co ltd
Priority to CN202110582606.0A priority Critical patent/CN113217555A/en
Publication of CN113217555A publication Critical patent/CN113217555A/en
Withdrawn legal-status Critical Current

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/25—Automatic clutches actuated entirely mechanically controlled by thermo-responsive elements
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/30—Systems of a plurality of automatic clutches
    • 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
    • F16N—LUBRICATING
    • F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
    • F16N11/10—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups by pressure of another fluid
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D2043/145—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members the centrifugal masses being pivoting
    • 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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to the technical field of generators and discloses an automatic anti-stall and overload device of a hydroelectric generator by utilizing thermal expansion, which comprises a fixed plate, wherein the fixed plate is connected with an anti-stall and overload mechanism and an oil injection mechanism, when the flow velocity of water flow is too high, because a hydraulic turbine is meshed with a power generation gear, the rotation of the hydraulic turbine drives an extrusion head to move obliquely upwards to extrude the inclined surface of an inclined surface block, the inclined surface block pushes a push-off block inwards after being extruded, the inward movement of the push-off block enables the hydraulic turbine and the power generation gear not to be meshed any more, at the moment, the generator stops working to carry out thermal buffering, simultaneously, a screw tap wheel moves inwards under the action of thrust to be meshed with a circumferential rack, as the circumferential rack is fixedly connected with the hydraulic turbine, the screw cone wheel rotates, the rotation of the screw cone wheel drives a heat reduction blade to rotate, the heat dissipation is accelerated, and the thermal buffering time is reduced, thereby achieving the function of automatic stall and overload prevention.

Description

Automatic stall and overload prevention device for hydroelectric generator by utilizing thermal expansion
Technical Field
The invention relates to the technical field of generators, in particular to an automatic stall and overload prevention device for a hydroelectric generator by utilizing thermal expansion.
Background
In the current power development process, because the traditional coal power generation is not enough to maintain the power life of people, people begin to continuously explore natural energy in the nature to convert the natural energy into electric energy through equipment, the natural energy which is mined currently comprises various energy sources such as solar energy, gravitational potential energy of water flow, tidal energy and wind energy, and a generator is also used.
However, when the generator is used at present, the uncontrollable energy factor generated by the external energy source is large, so that the generator is overloaded due to the overlarge impact of the external energy source, the generator is directly burned out under severe conditions, the manual maintenance is very complicated, and the cost waste is increased.
In view of the above, the present invention provides an automatic stall and overload prevention device for a hydroelectric generator, which utilizes thermal expansion to overcome the drawbacks of the conventional structure, and thus, the purpose of higher practical value is achieved.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the automatic stall-preventing overload device for the hydroelectric generator by utilizing thermal expansion, which has the advantages of preventing the overload damage of the generator and automatically lubricating the rotating shaft in the generator, and solves the problems of excessive heating, damage to the rotating part and blockage in the generator caused by lubrication failure after the overload of the generator.
(II) technical scheme
In order to achieve the purposes of preventing the generator from being damaged by overload and automatically lubricating the rotating shaft in the generator, the invention provides the following technical scheme: an automatic anti-stall overload device of a hydroelectric generator by utilizing thermal expansion comprises a fixed plate, wherein the top of the fixed plate is fixedly connected with a permanent magnet, the inside of the fixed plate is fixedly connected with a rotation-resisting block, the inside of the fixed plate is rotatably connected with a rotating plate, the surface of the rotating plate is fixedly connected with a stall spring, one end of the stall spring, which is far away from the rotating plate, is fixedly connected with a stall block, the inside of the rotating plate is coaxially connected with a power generation gear, the inside of the power generation gear is engaged with a driving rotating gear, the inside of the driving rotating gear is coaxially connected with a water conservancy turbine, the surface of the power generation gear is fixedly connected with a power generation coil, the surface of the water conservancy turbine is coaxially connected with a circumferential rack, the outside of the circumferential rack is movably connected with a screw cone pulley, the top of the screw cone pulley is fixedly connected with a heat reducing blade, and the top of the fixed plate is fixedly connected with an expansion bag, the surface of the expansion bag is fixedly connected with a pushing block, one side of the pushing block, which is far away from the expansion bag, is fixedly connected with an extrusion head, one end of the extrusion head, which is far away from the pushing block, is movably connected with an inclined block, the surface of the inclined block is fixedly connected with a pushing block, the surface of the inclined block is movably connected with an oil pushing rod, one end of the oil pushing rod, which is far away from the inclined block, is movably connected with an oil pushing piston, and one side of the oil pushing piston, which is far away from the oil pushing rod, is fixedly connected with an oil pushing spring;
preferably, the permanent magnets are different in magnetism from the symmetrical ends of the permanent magnets, the surface of the water conservancy turbine is rotatably connected with a bearing, and the surface of the bearing is fixedly connected with the inside of the fixing plate;
preferably, the surface of the screw cone pulley is rotatably connected with a bearing, and the surface of the bearing is fixedly connected with the inner part of the fixing plate;
preferably, the surface of the stall block is movably connected with the inside of the rotating plate through a sliding chute formed in the rotating plate, and a screw cone pulley is rotatably connected in the rotating plate;
preferably, the surface of the pushing block is movably connected with a spring rod, one end of the spring rod, which is far away from the pushing block, is movably connected with the surface of the fixed plate, the surface of the pushing block is movably connected with the inside of the fixed plate through a chute formed in the surface of the fixed plate, and one end of the pushing block, which is far away from the inclined block, is movably connected with the surface of the rotating plate;
preferably, the interior of the inclined plane block is fixedly connected with a compression spring, and one end of the compression spring, which is far away from the inclined plane block, is fixedly connected with the surface of the fixing plate.
(III) advantageous effects
Compared with the prior art, the invention provides an automatic stall and overload prevention device for a hydroelectric generator by utilizing thermal expansion, which has the following beneficial effects:
1. the automatic anti-stall overload device for the hydroelectric generator by utilizing thermal expansion comprises a water conservancy turbine, a power generation gear, a power generation coil, a rotating plate, a stall block, a stall spring, an expansion bag, a pushing block, an extrusion head, a rotating plate and a rotating plate, wherein the water conservancy turbine is meshed with the power generation gear, the rotating gear is driven by the rotation of the water conservancy turbine to rotate violently, the power generation gear is driven by the rotation of the power generation gear to rotate between permanent magnets for power generation, the rotating plate is driven by the rotation of the power generation coil to rotate, the rotating plate moves to drive the stall block to move centrifugally to stretch the stall spring, the centrifugal distance of the stall block is longer when the rotating speed is too high, the rotating plate is in contact with the extrusion head to decelerate, the rotating plate is prevented from being damaged by stall, a large amount of heat can, the bevel block receives the extrusion to inside promotion and pushes away from piece inward movement, the inward movement that pushes away from the piece makes water conservancy turbine and power generation gear no longer mesh, generator stop work carries out the thermal buffering this moment, screw tap wheel inward movement meshes with the circumference rack under thrust effect simultaneously, because circumference rack carries out fixed connection with water conservancy turbine, the screw cone wheel rotates this moment, the rotation of screw cone wheel drives the cooling leaf and rotates, accelerate thermal dissipation and reduce the time of thermal buffering, thereby reach the overload function of automatic anti-stall.
2. According to the automatic stall-preventing overload device for the hydroelectric generator by utilizing thermal expansion, the oil pushing rod is driven to push the oil pushing piston inwards to compress the oil pushing spring by the inward movement of the inclined plane block, and the oil pushing piston extrudes lubricating oil in an oil storage bottle to be sprayed onto the rotating shaft after receiving thrust, so that the function of automatic oil injection and anti-blocking is achieved.
Drawings
FIG. 1 is a schematic view of a fixing plate according to the present invention;
FIG. 2 is a schematic view of the water turbine configuration of the present invention;
FIG. 3 is a schematic view of the construction of the tapping wheel of the present invention;
FIG. 4 is a schematic view of the structure of the inflatable bladder of the present invention;
fig. 5 is a schematic structural view of the oil pushing piston of the present invention.
In the figure: 1. a fixing plate; 2. permanent magnet blocks; 3. a water turbine; 4. a driving rotating gear; 5. a power generation gear; 6. a power generation coil; 7. a rotation resistance block; 8. a rotating plate; 9. a stall spring; 10. a stall block; 11. a circumferential rack; 12. a lead screw wheel; 13. reducing fever leaves; 14. an inflation bladder; 15. a pushing block; 16. an extrusion head; 17. a bevel block; 18. pushing away the separating block; 19. pushing an oil rod; 20. an oil pushing piston; 21. pushing the oil spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an automatic anti-stall overload apparatus for a hydroelectric generator using thermal expansion comprises a fixed plate 1, a permanent magnet 2 fixedly connected to the top of the fixed plate 1, a rotation-blocking block 7 fixedly connected to the inside of the fixed plate 1, a rotating plate 8 rotatably connected to the inside of the fixed plate 1, a stall spring 9 fixedly connected to the surface of the rotating plate 8, a stall block 10 fixedly connected to one end of the stall spring 9 far from the rotating plate 8, a power generation gear 5 coaxially connected to the inside of the rotating plate 8, a driving rotation gear 4 engaged with the inside of the power generation gear 5, a water turbine 3 coaxially connected to the inside of the driving rotation gear 4, the permanent magnet 2 having a different magnetism from the symmetrical end thereof, a bearing rotatably connected to the surface of the water turbine 3, the surface of the bearing fixedly connected to the inside of the fixed plate 1, a power generation coil 6 fixedly connected to the surface of the power generation gear 5, and a circumferential rack 11 coaxially connected to the surface of the water turbine 3, the external part of the circumferential rack 11 is movably connected with a screw cone wheel 12, the surface of the stall block 10 is movably connected with the internal part of the rotating plate 8 through a sliding groove arranged in the rotating plate 8, the internal part of the rotating plate 8 is rotatably connected with the screw cone wheel 12, the surface of the screw cone wheel 12 is rotatably connected with a bearing, the surface of the bearing is fixedly connected with the internal part of the fixing plate 1, the top part of the screw cone wheel 12 is fixedly connected with a heat reducing blade 13, the top part of the fixing plate 1 is fixedly connected with an expansion bag 14, the surface of the expansion bag 14 is fixedly connected with a pushing block 15, one side of the pushing block 15 far away from the expansion bag 14 is fixedly connected with an extrusion head 16, one end of the extrusion head 16 far away from the pushing block 15 is movably connected with an inclined plane block 17, the internal part of the inclined plane block 17 is fixedly connected with a compression spring, one end of the compression spring far away from the inclined plane block 17 is fixedly connected with the surface of the fixing plate 1, the surface of the inclined plane block 17 is fixedly connected with a pushing block 18, and the surface of the pushing block 15 is movably connected with a spring rod, one end that the spring lever kept away from and promotes piece 15 and the surperficial swing joint of fixed plate 1, the inside swing joint of spout and fixed plate 1 that the surface of promoting piece 15 was seted up through fixed plate 1 surface, the one end that the inclined plane piece 17 was kept away from to the piece 18 is connected with the surface swing joint of rotor plate 8, the surperficial swing joint of inclined plane piece 17 has oil pushing rod 19, oil pushing rod 19 keeps away from the one end swing joint of inclined plane piece 17 has oil pushing piston 20, oil pushing piston 20 keeps away from one side fixedly connected with oil pushing spring 21 that oil pushing rod 19.
The working principle is as follows: when the water flow velocity is too fast, the hydraulic turbine 3 rotates violently at the moment, because the hydraulic turbine 3 is meshed with the power generation gear 5, the power generation gear 5 is driven to rotate violently by the rotation of the hydraulic turbine 3, the power generation gear 5 rotates to drive the power generation coil 6 to rotate between the permanent magnetic blocks 2 for power generation, the rotating plate 8 is driven to rotate by the rotation of the power generation coil 6, the rotating plate 8 moves to drive the stall block 10 to do centrifugal motion to stretch the stall spring 9, when the rotating speed is too fast, the centrifugal distance of the stall block 10 is far away, the stall block contacts with the stall block 7 to decelerate at the moment, the stall damage to the rotating part is prevented, if the rotating speed is always high-intensity, a large amount of heat can be generated inside, at the moment, the expansion bag 14 expands after being heated, the expansion of the expansion bag 14 pushes the push block 15 to move obliquely upwards, the oblique upwards movement of the push block 15 drives the extrusion head 16 to move obliquely upwards to extrude the inclined surface of the inclined surface block 17, the inclined plane block 17 is pushed inwards to push the pushing-away block 18 to move inwards after being extruded, the pushing-away block 18 moves inwards to enable the water conservancy turbine 3 to be not meshed with the power generation gear 5 any more, at the moment, the power generator stops working to perform thermal buffering, meanwhile, the screw tap wheel 12 moves inwards to be meshed with the circumferential rack 11 under the action of thrust, and as the circumferential rack 11 is fixedly connected with the water conservancy turbine 3, the screw tap wheel 12 rotates, the rotation of the screw tap wheel 12 drives the heat reduction blade 13 to rotate, so that the heat dissipation is accelerated, the thermal buffering time is shortened, and the automatic stall overload prevention function is achieved; meanwhile, the inward movement of the inclined surface block 17 drives the oil pushing rod 19 to push the oil pushing piston 20 inwards to compress the oil pushing spring 21, and the oil pushing piston 20 extrudes lubricating oil in the oil storage bottle to be sprayed onto the rotating shaft after receiving the pushing force, so that the function of automatic oil spraying and anti-blocking is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. An automatic stall overload prevention device for hydroelectric generators by means of thermal expansion, comprising a fixed plate (1), characterized in that: the top of the fixed plate (1) is fixedly connected with a permanent magnet (2), the inside of the fixed plate (1) is fixedly connected with a rotation resistance block (7), the inside of the fixed plate (1) is connected with a rotating plate (8), the surface of the rotating plate (8) is fixedly connected with a stall spring (9), one end of the stall spring (9) far away from the rotating plate (8) is fixedly connected with a stall block (10), the inside of the rotating plate (8) is coaxially connected with a power generation gear (5), the inside of the power generation gear (5) is engaged with a driving rotating gear (4), the inside of the driving rotating gear (4) is coaxially connected with a water conservancy turbine (3), the surface of the power generation gear (5) is fixedly connected with a power generation coil (6), the surface of the water conservancy turbine (3) is coaxially connected with a circumferential rack (11), and the outside of the circumferential rack (11) is movably connected with a lead screw cone wheel (12), the utility model discloses a lead screw cone pulley (12) for the oil pump, including the silk cone pulley, the top fixedly connected with cooling leaf (13) of silk cone pulley (12), the top fixedly connected with inflation bag (14) of fixed plate (1), the fixed surface of inflation bag (14) is connected with and promotes piece (15), one side fixedly connected with extrusion head (16) of inflation bag (14) are kept away from in promotion piece (15), the one end swing joint that promotes piece (15) is kept away from in extrusion head (16) has bevel block (17), the fixed surface of bevel block (17) is connected with and pushes away from piece (18), the fixed surface of bevel block (17) is connected with and pushes away oil pole (19), the one end swing joint that pushes away oil pole (17) is kept away from in oil pole (19) has and pushes away oil piston (20), push away one side fixedly connected with that oil pole (19) was kept away from in oil piston (20) and push away oil spring (21).
2. The automatic stall overload prevention device for the hydroelectric generator using thermal expansion according to claim 1, wherein: the permanent magnet blocks (2) are different from the symmetrical ends in magnetism, the surface of the water conservancy turbine (3) is rotatably connected with a bearing, and the surface of the bearing is fixedly connected with the inner part of the fixing plate (1).
3. The automatic stall overload prevention device for the hydroelectric generator using thermal expansion according to claim 1, wherein: the surface of the screw cone pulley (12) is rotatably connected with a bearing, and the surface of the bearing is fixedly connected with the inner part of the fixing plate (1).
4. The automatic stall overload prevention device for the hydroelectric generator using thermal expansion according to claim 1, wherein: the surface of the stall block (10) is movably connected with the inside of the rotating plate (8) through a sliding groove formed in the rotating plate (8), and a screw cone pulley (12) is rotatably connected to the inside of the rotating plate (8).
5. The automatic stall overload prevention device for the hydroelectric generator using thermal expansion according to claim 1, wherein: the surface of the pushing block (15) is movably connected with a spring rod, one end, far away from the pushing block (15), of the spring rod is movably connected with the surface of the fixing plate (1), the surface of the pushing block (15) is movably connected with the inner portion of the fixing plate (1) through a sliding groove formed in the surface of the fixing plate (1), and one end, far away from the inclined surface block (17), of the pushing block (18) is movably connected with the surface of the rotating plate (8).
6. The automatic stall overload prevention device for the hydroelectric generator using thermal expansion according to claim 1, wherein: the interior of the inclined plane block (17) is fixedly connected with a compression spring, and one end, far away from the inclined plane block (17), of the compression spring is fixedly connected with the surface of the fixing plate (1).
CN202110582606.0A 2021-05-27 2021-05-27 Automatic stall and overload prevention device for hydroelectric generator by utilizing thermal expansion Withdrawn CN113217555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110582606.0A CN113217555A (en) 2021-05-27 2021-05-27 Automatic stall and overload prevention device for hydroelectric generator by utilizing thermal expansion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110582606.0A CN113217555A (en) 2021-05-27 2021-05-27 Automatic stall and overload prevention device for hydroelectric generator by utilizing thermal expansion

Publications (1)

Publication Number Publication Date
CN113217555A true CN113217555A (en) 2021-08-06

Family

ID=77099686

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110582606.0A Withdrawn CN113217555A (en) 2021-05-27 2021-05-27 Automatic stall and overload prevention device for hydroelectric generator by utilizing thermal expansion

Country Status (1)

Country Link
CN (1) CN113217555A (en)

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Application publication date: 20210806