CN113387456A - Stall protection device based on centrifugal aerator - Google Patents
Stall protection device based on centrifugal aerator Download PDFInfo
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- CN113387456A CN113387456A CN202110778371.2A CN202110778371A CN113387456A CN 113387456 A CN113387456 A CN 113387456A CN 202110778371 A CN202110778371 A CN 202110778371A CN 113387456 A CN113387456 A CN 113387456A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to the technical field of environment-friendly materials, and discloses a stall protection device based on a centrifugal aerator, which comprises a main body, a rotating shaft, an actuating mechanism, a transmission mechanism and a trigger mechanism, wherein the rotating shaft is rotatably connected to the inner side of the main body, and the actuating mechanism is movably connected to the inner part of the rotating shaft and is used for expanding the rotating area of the rotating shaft during working. This stall protection device based on centrifugal aeration machine, drive trigger mechanism through the pivot and move, rethread drive mechanism uses with trigger mechanism's cooperation, when the pivot rotational speed is too fast, thereby make the actuating mechanism circuit route, thereby reached and driven the effect of the piece that contracts to the inboard, effectively realized promoting the purpose that stretches out the piece and stretch out to the outside, thereby realize increase pivot turning area, under viscous liquid's hindrance, effectively reduce the rotational speed of pivot, make the pivot be in the state of stabilizing rotational speed, avoid aeration machine internals serious wear, thereby improve centrifugal aeration machine's life.
Description
Technical Field
The invention relates to the technical field of environment-friendly materials, in particular to a stall protection device based on a centrifugal aerator.
Background
The aerator can be divided into a submersible jet aerator and a centrifugal aerator according to the difference of the principle and the application, the aerator is mainly used for aeration and stirring of an aeration tank and an aeration grit chamber of a sewage treatment plant, oxygenating and mixing the mixed liquid of sewage and sludge, carrying out biochemical treatment or breeding oxygenation and landscape water maintenance on sewage, and the condition of too fast rotating speed easily appears in the operation process of the centrifugal aerator, thus leading to the problem of equipment friction.
Centrifugal aeration machine adopts motor and impeller direct drive, forms even air water mixed liquid through gas and water intensive mixing, but the too fast condition of rotational speed often can appear when the motor drives the impeller operation, and the rotational speed is too fast causes pivot and casing frictional force too big easily, leads to the inside condition that generates heat and send out the scald that appears of centrifugal aeration machine for the internals wearing and tearing are serious, thereby reduces centrifugal aeration machine's life.
Therefore, we propose a stall protection device based on a centrifugal aerator to solve the above problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a stall protection device based on a centrifugal aerator, which has the advantages of effectively reducing the rotating speed of the centrifugal aerator when the centrifugal aerator runs too fast, ensuring stable running speed and prolonging the service life of the centrifugal aerator, and solves the problem that the service life of the centrifugal aerator is reduced due to serious abrasion of internal parts because the centrifugal aerator runs too fast easily when the centrifugal aerator runs.
(II) technical scheme
In order to realize the purposes of effectively reducing the rotating speed of the centrifugal aerator and ensuring the stable operating speed when the centrifugal aerator operates too fast so as to prolong the service life of the centrifugal aerator, the invention provides the following technical scheme: a stall protection device based on a centrifugal aerator comprises a main body, a rotating shaft, an executing mechanism, a transmission mechanism and a triggering mechanism, wherein the rotating shaft is rotatably connected to the inner side of the main body, the executing mechanism is movably connected to the inner side of the rotating shaft and used for expanding the rotating area of the rotating shaft in work, the transmission mechanism fixedly connected to the inner side of the executing mechanism is movably connected to the inner side of the rotating shaft and used for limiting part of the executing mechanism to transversely contract, and the triggering mechanism is elastically connected to the inner side of the rotating shaft, close to the top of the transmission mechanism, and used for controlling and adjusting the expansion amplitude of the executing mechanism.
Further, actuating mechanism includes the activity groove, stretches out piece and connecting rod, the inside of pivot has been seted up the activity groove, the activity groove plays to be convenient for actuating mechanism moves about the effect, the equal swing joint in top and the bottom of pivot with the outside sliding connection of activity groove stretch out the piece, the shape that stretches out the piece is the rectangle just the material that stretches out the piece is the stereoplasm rubber material, stretch out the piece and play and enlarge the effect of the radial width of pivot, the inside swing joint in activity groove have with the inboard rotation of stretching out the piece is connected the connecting rod.
Further, actuating mechanism still includes fluid groove and foil, the inboard of main part just is close to the outside of pivot has been seted up the fluid groove, the shape of fluid groove is the ring shape just the inside in fluid groove is filled with viscous liquid, and viscous liquid is relative motion and produces frictional force and counter-resistance relative motion, and viscous liquid plays and hinders the pivot pivoted effect, the outside fixedly connected with in activity groove with the inboard rotation of fluid groove is connected the foil, the shape of foil is the arc just the quantity of foil has two sets ofly, the material of foil is elastic material, the foil receives the pulling force to contract to the inboard and plays the effect of reducing pivot radial width.
Further, actuating mechanism still includes draw back piece and electromagnet in, the equal swing joint in both sides of activity groove with the inboard fixed connection of sheetmetal draw back the piece, the quantity that draws back the piece has two and two draw back the piece with the perpendicular center line symmetry of pivot, draw back the outside of piece with the inboard of connecting rod is rotated and is connected, draw back the piece and play driven effect, the inside fixed connection that draws back the piece has the electromagnet, the quantity of electromagnet has two and two the magnetism that the electromagnet inboard produced is opposite, the electromagnet plays the effect of magnetic drive.
Furthermore, the transmission mechanism comprises a limiting rod, a limiting groove, a telescopic rod and balls, the limiting rod is fixedly connected to the inner side of the retraction piece and the left side close to the movable groove, the limiting rod is in a long rod shape and has the function of limiting the retraction piece on the left side, the limiting groove is formed in the limiting rod, the telescopic rod is fixedly connected to the inner side of the retraction piece and the right side close to the movable groove, the telescopic rod is in a long rod shape and is matched with the left side of the telescopic rod and the right side of the limiting groove, the telescopic rod has the function of limiting the retraction piece on the right side, the balls are connected to the outer side of the limiting rod in a rolling manner and are rotatably connected to the inner side of the rotating shaft, the balls are in a spherical shape and are made of hard high-strength materials, and play a role of reducing friction force, the inside elastic connection of activity groove with the gag lever post with the outside of telescopic link all cup joints coil spring, coil spring is compression spring, coil spring plays will the effect that the piece that contracts inwards moves to the outside.
Furthermore, the trigger mechanism comprises an adjusting groove, a first spring and a resistance wire, the adjusting groove is formed in the rotating shaft and is close to the top of the ball, the adjusting groove is rectangular, the adjusting groove plays a role in facilitating the movement of the centrifugal ball, the first spring is fixedly connected to the bottom of the adjusting groove, the first spring is an extension spring, the first spring plays a role in moving the centrifugal ball to the bottom of the adjusting groove, the resistance wire is fixedly connected to the two sides of the adjusting groove, the resistance value at the bottom of the resistance wire is larger than that at the top of the resistance wire, the resistance wire is electrically connected with the electromagnet, and the resistance wire plays a role in accessing and changing circuit voltage.
Furthermore, the trigger mechanism also comprises a centrifugal ball, a sliding piece, a sliding contact and a second spring, the interior of the adjusting groove is movably connected with the centrifugal ball fixedly connected with the top of the spring I, the centrifugal ball is in a sphere shape, plays the roles of fixing and driving, is movably connected with the sliding piece in sliding connection with the inner wall of the adjusting groove on both sides, the sliding piece is in the shape of a sphere, the inner walls of two sides of the centrifugal ball are fixedly connected with the sliding contacts fixedly connected with the inner side of the sliding piece, the sliding contact is a compression spring and plays a role of pushing the sliding piece outwards, and a second spring in sliding contact with the inner side of the resistance wire is fixedly connected inside the sliding piece, and the second spring is in contact with the resistance wire to play a role in communicating a circuit.
(III) advantageous effects
Compared with the prior art, the invention provides a stall protection device based on a centrifugal aerator, which has the following beneficial effects:
1. this stall protection device based on centrifugal aeration machine, drive trigger mechanism through the pivot and move, rethread drive mechanism uses with trigger mechanism's cooperation, when the pivot rotational speed is too fast, thereby make the actuating mechanism circuit route, thereby reached and driven the effect of the piece that contracts to the inboard, effectively realized promoting the purpose that stretches out the piece and stretch out to the outside, thereby realize increase pivot turning area, under viscous liquid's hindrance, effectively reduce the rotational speed of pivot, make the pivot be in the state of stabilizing rotational speed, avoid aeration machine internals serious wear, thereby improve centrifugal aeration machine's life.
2. This stall protection device based on centrifugal aeration machine drives the operation of centrifugal ball through the pivot, and rethread resistance wire uses with the cooperation of spring two, during the rotational speed increase of pivot for resistance wire and the contact of spring two, under the effect that the resistance wire changed circuit voltage, thereby the pivot rotational speed is faster drives centrifugal ball and removes farther to the top, thereby has reached the effect of further increase pivot running area, makes the pivot receive the effect of hindering force increase, realizes that the pivot rotational speed is in certain purpose all the time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic view of the enlarged structure of the operation section of the rotating shaft of the present invention;
FIG. 4 is an enlarged view of a portion B of FIG. 3 according to the present invention.
In the figure: 1. a main body; 2. a rotating shaft; 3. an actuator; 4. a transmission mechanism; 5. a trigger mechanism; 31. a movable groove; 32. a projecting member; 33. a connecting rod; 34. a fluid tank; 35. a metal foil; 36. an inner contracting piece; 37. an electromagnet; 41. a limiting rod; 42. a limiting groove; 43. a telescopic rod; 44. a ball bearing; 45. a coil spring; 51. an adjustment groove; 52. a centrifugal ball; 53. a first spring; 54. a sliding member; 55. a sliding contact; 56. a second spring; 57. resistance wire.
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.
The first embodiment is as follows:
referring to fig. 1 and 2, a stall protection device based on a centrifugal aerator comprises a main body 1, a rotating shaft 2, an actuating mechanism 3, a transmission mechanism 4 and a trigger mechanism 5, wherein the rotating shaft 2 is rotatably connected to the inner side of the main body 1, the actuating mechanism 3 is movably connected to the inner side of the rotating shaft 2 and used for expanding the rotating area of the rotating shaft 2 during working, the actuating mechanism 3 comprises a movable groove 31, an extension piece 32, a connecting rod 33, a fluid groove 34, a metal sheet 35, an internal contraction piece 36 and an electromagnet 37, the movable groove 31 is formed in the rotating shaft 2, the movable groove 31 plays a role in facilitating the movement of the actuating mechanism 3, the top and the bottom of the rotating shaft 2 are both movably connected with an extension piece 32 which is slidably connected to the outer side of the movable groove 31, the extension piece 32 is rectangular, the extension piece 32 is made of a hard rubber material, and the extension piece 32 plays a role in expanding the radial width of the rotating shaft 2.
The inner part of the movable groove 31 is movably connected with a connecting rod 33 which is rotatably connected with the inner side of the extending piece 32, the inner side of the main body 1 and the outer side which is close to the rotating shaft 2 are provided with a fluid groove 34, the fluid groove 34 is in a ring shape, the fluid groove 34 is filled with viscous liquid, the viscous liquid does relative motion to generate friction force to resist the relative motion, the viscous liquid plays a role of obstructing the rotation of the rotating shaft 2, the outer side of the movable groove 31 is fixedly connected with metal sheets 35 which are rotatably connected with the inner side of the fluid groove 34, the metal sheets 35 are in an arc shape, the number of the metal sheets 35 is two, the metal sheets 35 are made of elastic materials, the metal sheets 35 are pulled to contract inwards to play a role of reducing the radial width of the rotating shaft 2, both sides of the movable groove 31 are movably connected with retracting pieces 36 which are fixedly connected with the inner side of the metal sheets 35, the number of the retracting pieces 36 is two, and the two retracting pieces 36 are symmetrical with the vertical center line of the rotating shaft 2, the outer side of the retraction piece 36 is rotatably connected with the inner side of the connecting rod 33, the retraction piece 36 plays a role in transmission, electromagnets 37 are fixedly connected to the inner part of the retraction piece 36, the number of the electromagnets 37 is two, the magnetism generated on the inner sides of the two electromagnets 37 is opposite, and the electromagnets 37 play a role in magnetic transmission.
The inside of the rotating shaft 2 is movably connected with a transmission mechanism 4 fixedly connected with the inner side of the actuating mechanism 3 and used for limiting the transverse contraction of part of the actuating mechanism 3, the transmission mechanism 4 comprises a limiting rod 41, a limiting groove 42, a telescopic rod 43 and a ball 44, the inner side of the retraction piece 36 and the left side close to the movable groove 31 are fixedly connected with the limiting rod 41, the limiting rod 41 is in a long rod shape, the limiting rod 41 plays a role in limiting the retraction piece 36 on the left side, the limiting groove 42 is arranged inside the limiting rod 41, the inner side of the retraction piece 36 and the right side close to the movable groove 31 are fixedly connected with the telescopic rod 43, the telescopic rod 43 is in a long rod shape, the left side of the telescopic rod 43 is matched with the right side of the limiting groove 42, the telescopic rod 43 plays a role in limiting the retraction piece 36 on the right side, the inside of the rotating shaft 2 is rotatably connected with the ball 44 in rolling connection with the outer side of the limiting rod 41, the ball 44 is in a spherical shape, and the ball 44 is made of a hard high-strength material, ball 44 plays the effect that reduces friction power, and the inside elastic connection of activity groove 31 has the coil spring 45 that all cup joints with the outside of gag lever post 41 and telescopic link 43, and coil spring 45 is compression spring, and coil spring 45 plays the effect that the piece 36 that will contract to the outside moves, and the inside of pivot 2 and the top elastic connection that is close to drive mechanism 4 have trigger mechanism 5 and be used for the size of the flexible range of control adjustment actuating mechanism 3.
Example two:
referring to fig. 1-4, a stall protection device based on a centrifugal aerator comprises a main body 1, a rotating shaft 2, an actuating mechanism 3, a transmission mechanism 4 and a trigger mechanism 5, wherein the rotating shaft 2 is rotatably connected to the inner side of the main body 1, the actuating mechanism 3 is movably connected to the inside of the rotating shaft 2 and used for enlarging the rotating area of the rotating shaft 2 during working, the actuating mechanism 3 comprises a movable groove 31, an extension piece 32, a connecting rod 33, a fluid groove 34, a metal sheet 35, an internal contraction piece 36 and an electromagnet 37, the movable groove 31 is formed in the rotating shaft 2, the movable groove 31 plays a role in facilitating the movement of the actuating mechanism 3, the top and the bottom of the rotating shaft 2 are movably connected with the extension piece 32 which is slidably connected with the outer side of the movable groove 31, the extension piece 32 is rectangular, the extension piece 32 is made of a hard rubber material, the extension piece 32 plays a role in enlarging the radial width of the rotating shaft 2, the connecting rod 33 which is rotatably connected with the inner side of the extension piece 32 is movably connected to the inside of the movable groove 31, the fluid groove 34 is formed in the inner side of the main body 1 and the outer side close to the rotating shaft 2, the fluid groove 34 is annular, viscous liquid is filled in the fluid groove 34, the viscous liquid moves relatively to generate friction force to resist the relative movement, and the viscous liquid plays a role in blocking the rotating shaft 2 from rotating.
The outer side of the movable groove 31 is fixedly connected with metal sheets 35 which are rotatably connected with the inner side of the fluid groove 34, the metal sheets 35 are in an arc shape, the number of the metal sheets 35 is two, the metal sheets 35 are made of elastic materials, the metal sheets 35 are pulled to contract inwards to play a role in reducing the radial width of the rotating shaft 2, two sides of the movable groove 31 are movably connected with retraction pieces 36 which are fixedly connected with the inner side of the metal sheets 35, the number of the retraction pieces 36 is two, the two retraction pieces 36 are symmetrical around the vertical center line of the rotating shaft 2, the outer side of each retraction piece 36 is rotatably connected with the inner side of the connecting rod 33, each retraction piece 36 plays a role in transmission, electromagnets 37 are fixedly connected with the inner part of each retraction piece 36, the number of the electromagnets 37 is two, the magnetism generated on the inner sides of the two electromagnets 37 is opposite, the electromagnets 37 play a role in magnetic transmission, and the transmission mechanism 4 which is fixedly connected with the inner side of the actuating mechanism 3 is movably connected with the inner part of the inner part 2 and used for limiting the transverse direction of the actuating mechanism 3 The shrink, drive mechanism 4 includes gag lever post 41, spacing groove 42, telescopic link 43 and ball 44, the inboard of piece 36 that contracts in and be close to the left side fixedly connected with gag lever post 41 of activity groove 31, the shape of gag lever post 41 is long rod form, gag lever post 41 plays the spacing effect of piece 36 that contracts in to the left side, spacing groove 42 has been seted up to the inside of gag lever post 41, the inboard of piece 36 that contracts in and be close to the right side fixedly connected with telescopic link 43 of activity groove 31, the shape of telescopic link 43 is long rod form and telescopic link 43's left side and spacing groove 42's right side looks adaptation, telescopic link 43 plays the spacing effect to piece 36 that contracts in the right side, the inside of pivot 2 is rotated and is connected with the outside roll connection's of gag lever post 41 ball 44, the shape of ball 44 is spheroid and ball 44's material is stereoplasm high strength material, ball 44 plays the effect of reducing friction.
The inner part of the movable groove 31 is elastically connected with a spiral spring 45 which is sleeved with the limiting rod 41 and the outer side of the telescopic rod 43, the spiral spring 45 is a compression spring, the spiral spring 45 plays a role of moving the inward-contracting piece 36 to the outer side, the inner part of the rotating shaft 2 and the top part close to the transmission mechanism 4 are elastically connected with a trigger mechanism 5 and used for controlling the size of the expansion amplitude of the adjusting actuating mechanism 3, the trigger mechanism 5 comprises an adjusting groove 51, a centrifugal ball 52, a spring I53, a sliding piece 54, a sliding contact 55, a spring II 56 and a resistance wire 57, the inner part of the rotating shaft 2 and the top part close to the ball 44 are provided with the adjusting groove 51, the adjusting groove 51 is rectangular and plays a role of facilitating the movement of the centrifugal ball 52, the inner part of the adjusting groove 51 is movably connected with the centrifugal ball 52 fixedly connected with the top part of the spring I53, the centrifugal ball 52 is spherical, and the centrifugal ball 52 plays a role of fixing and transmission, the bottom of the adjusting groove 51 is fixedly connected with a first spring 53, the first spring 53 is an extension spring, the first spring 53 plays a role of moving the centrifugal ball 52 to the bottom of the adjusting groove 51, both sides of the centrifugal ball 52 are movably connected with sliding pieces 54 in sliding connection with the inner wall of the adjusting groove 51, the sliding pieces 54 are shaped like spheres, the inner walls of both sides of the centrifugal ball 52 are fixedly connected with sliding contacts 55 fixedly connected with the inner sides of the sliding pieces 54, the sliding contacts 55 are compression springs, the sliding contacts 55 play a role of pushing the sliding pieces 54 outwards, a second spring 56 in sliding contact with the inner sides of the resistance wires 57 is fixedly connected inside the sliding pieces 54, the second spring 56 is in contact with the resistance wires 57 to play a role of communicating a circuit, both sides of the adjusting groove 51 are fixedly connected with the resistance wires 57, the resistance value at the bottom of the resistance wires 57 is greater than that at the top, the resistance wires 57 are electrically connected with the electromagnet 37, the resistance wire 57 acts as a pass through and changes the circuit voltage.
The working principle is as follows: when the centrifugal type fluid pump works, the rotating shaft 2 is at a stable running speed, part of the rotating shaft 2 rotates at the inner side of the fluid groove 34, at this time, the rotating shaft 2 generates a certain centrifugal force, under the driving of the centrifugal force of the rotating shaft 2, the centrifugal ball 52 is thrown out to the top of the adjusting groove 51, the first spring 53 is pulled to be in a stretching state, the centrifugal ball 52 drives the sliding piece 54 to slide on the inner wall of the adjusting groove 51, at this time, the centrifugal ball 52 is in the middle position of the adjusting groove 51, the second spring 56 is not in contact with the resistance wire 57, the circuit of the executing mechanism 3 is not closed, under the action of the spiral spring 45, the retraction piece 36 is pushed to be positioned at the outermost side of the rotating shaft 2, the extension piece 32 is driven to be positioned at the outermost side of the rotating shaft 2 through the pulling of the connecting rod 33, the metal sheet 35 under the squeezing action of the retraction piece 36, the overall shape of the rotating shaft 2 is circular, when the rotating shaft 2 rotates axially, the viscous liquid inside the fluid groove 34 has the smallest blocking force on the rotating shaft 2, at this time, the rotating shaft 2 is in a working state of normal rotation;
when the centrifugal aerator stalls, the rotating speed of the rotating shaft 2 is too fast, at the same time, the centrifugal force of the rotating shaft 2 is increased, the moving distance of the centrifugal ball 52 is driven to be increased, the centrifugal ball 52 continues to move to the top of the adjusting groove 51, at the same time, the second spring 56 is in contact with the resistance wire 57 and is electrified, so that the circuit path of the actuating mechanism 3 is realized, because the resistance value of the bottom of the resistance wire 57 is larger than that of the top, the centrifugal ball 52 is driven to move farther when the rotating shaft 2 rotates faster, the effect of reducing the resistance value of the resistance wire 57 is achieved, the effect that the second spring 56 is in contact with the resistance wire 57 and the voltage of the circuit is larger is effectively realized, at the same time, the electromagnet 37 is electrified and magnetized, because the magnetism of the inner sides of the electromagnet 37 is opposite, the principle that the opposite magnetism attracts each other is utilized, the effect that the two retracted pieces 36 are driven to compress the spiral spring 45 to move towards the inner side is effectively realized, thereby realizing the effect of drawing the metal sheet 35 to contract towards the inner side of the rotating shaft 2, the limiting rod 41 is in inserted connection and matching with the telescopic rod 43, the ball 44 reduces the friction force, thereby effectively realizing the purpose of limiting the inward contraction piece 36, meanwhile, under the transmission action of the connecting rod 33, the outward expansion effect of the extending piece 32 is pushed, thereby realizing the purposes of reducing the areas of the two sides of the rotating shaft 2 and increasing the length rotating area of the rotating shaft 2, and under the obstruction of the viscous liquid filled in the fluid groove 34, the viscous liquid is pushed to operate when the rotating shaft 2 integrally rotates, the friction force is generated due to the relative motion of the viscous liquid, thereby further resisting the relative motion, effectively realizing the purpose of reducing the rotating speed of the rotating shaft 2, the rotating speed of the rotating shaft 2 is faster, the magnetism of the electromagnet 37 is larger, the moving distance between the extending piece 32 and the inward contraction piece 36 is larger, the operating area of the rotating shaft 2 is larger, the obstruction force to the rotating shaft 2 is effectively realized to be larger, the rotating shaft 2 is in a state of stable rotating speed, the condition that the internal parts of the aerator are seriously abraded is avoided, and the normal work of the centrifugal aerator is ensured, so that the service life of the centrifugal aerator is prolonged.
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 (7)
1. The utility model provides a stall protection device based on centrifugal aeration machine which characterized in that: including main part (1), pivot (2), actuating mechanism (3), drive mechanism (4) and trigger mechanism (5), the inboard of main part (1) is rotated and is connected with pivot (2), the inside swing joint of pivot (2) has actuating mechanism (3) and is used for the during operation to enlarge pivot (2) rotation area, the inside swing joint of pivot (2) have with the inboard fixed connection of actuating mechanism (3) drive mechanism (4) are used for the restriction part actuating mechanism (3) transversely contract, the inside of pivot (2) just is close to the top elastic connection of drive mechanism (4) has trigger mechanism (5) and are used for control to adjust the size of actuating mechanism (3) range of stretching out and drawing back.
2. The stall protection device based on the centrifugal aerator as claimed in claim 1, wherein: actuating mechanism (3) are including activity groove (31), stretch out piece (32), connecting rod (33) and foil (35), the inside of pivot (2) has been seted up activity groove (31), the top of pivot (2) and the equal swing joint in bottom with the outside sliding connection of activity groove (31) stretch out piece (32), the inside swing joint of activity groove (31) with the inboard of stretching out piece (32) is rotated and is connected connecting rod (33).
3. The stall protection device based on the centrifugal aerator as claimed in claim 2, wherein: still include fluid groove (34), the inboard of main part (1) just is close to the outside of pivot (2) has been seted up fluid groove (34), the outside fixedly connected with of activity groove (31) with fluid groove (34) inboard is rotated and is connected foil (35).
4. The stall protection device based on the centrifugal aerator as claimed in claim 3, wherein: still include draw in piece (36) and electromagnet (37), the both sides of activity groove (31) all swing joint with the inboard fixed connection of foil (35) draw in piece (36), the inside fixed connection that draws in piece (36) draw in electromagnet (37).
5. The stall protection device based on the centrifugal aerator as claimed in claim 4, wherein: drive mechanism (4) include gag lever post (41), spacing groove (42), telescopic link (43), ball (44) and coil spring (45), the inboard of piece (36) that contracts is just close to the left side fixedly connected with of activity groove (31) gag lever post (41), seted up in the inside of gag lever post (41) spacing groove (42), the inboard of piece (36) that contracts just is close to the right side fixedly connected with of activity groove (31) telescopic link (43), the inside of pivot (2) rotate be connected with the outside roll connection of gag lever post (41) ball (44), the inside elastic connection of activity groove (31) have with gag lever post (41) with the outside of telescopic link (43) all cup joints coil spring (45).
6. The stall protection device based on the centrifugal aerator as claimed in claim 5, wherein: the trigger mechanism (5) comprises an adjusting groove (51), a first spring (53) and a resistance wire (57), the adjusting groove (51) is formed in the rotating shaft (2) and is close to the top of the ball (44), the first spring (53) is fixedly connected to the bottom of the adjusting groove (51), and the resistance wire (57) is fixedly connected to the two sides of the adjusting groove (51).
7. The stall protection device based on the centrifugal aerator as claimed in claim 6, wherein: the centrifugal ball type centrifugal fan is characterized by further comprising a centrifugal ball (52), a sliding piece (54), a sliding contact (55) and a second spring (56), wherein the centrifugal ball (52) fixedly connected with the top of the first spring (53) is movably connected inside the adjusting groove (51), the sliding piece (54) slidably connected with the inner wall of the adjusting groove (51) is movably connected to both sides of the centrifugal ball (52), the sliding contact (55) fixedly connected with the inner side of the sliding piece (54) is fixedly connected to the inner wall of both sides of the centrifugal ball (52), and the second spring (56) in sliding contact with the inner side of the resistance wire (57) is fixedly connected inside the sliding piece (54).
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| CN202110778371.2A CN113387456A (en) | 2021-07-09 | 2021-07-09 | Stall protection device based on centrifugal aerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113680297A (en) * | 2021-10-27 | 2021-11-23 | 南通金宝路体育用品有限公司 | Polyurethane raw material production equipment for manufacturing soft volleyballs |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827251A (en) * | 2017-10-31 | 2018-03-23 | 亿昇(天津)科技有限公司 | A kind of centrifugal blower anti-surge control method |
| CN111495264A (en) * | 2020-04-28 | 2020-08-07 | 临沂魅都家具有限公司 | Device for preventing stall of stirring device based on centrifugal force change |
| CN111514773A (en) * | 2020-05-08 | 2020-08-11 | 临沂思诗萃化妆品有限公司 | Stall protection device of electromagnetic control type cosmetics agitating unit |
-
2021
- 2021-07-09 CN CN202110778371.2A patent/CN113387456A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827251A (en) * | 2017-10-31 | 2018-03-23 | 亿昇(天津)科技有限公司 | A kind of centrifugal blower anti-surge control method |
| CN111495264A (en) * | 2020-04-28 | 2020-08-07 | 临沂魅都家具有限公司 | Device for preventing stall of stirring device based on centrifugal force change |
| CN111514773A (en) * | 2020-05-08 | 2020-08-11 | 临沂思诗萃化妆品有限公司 | Stall protection device of electromagnetic control type cosmetics agitating unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113680297A (en) * | 2021-10-27 | 2021-11-23 | 南通金宝路体育用品有限公司 | Polyurethane raw material production equipment for manufacturing soft volleyballs |
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