CN114109916B - Inlet guide vane regulator convenient to maintain and replace - Google Patents
Inlet guide vane regulator convenient to maintain and replace Download PDFInfo
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- CN114109916B CN114109916B CN202110954205.3A CN202110954205A CN114109916B CN 114109916 B CN114109916 B CN 114109916B CN 202110954205 A CN202110954205 A CN 202110954205A CN 114109916 B CN114109916 B CN 114109916B
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- guide vane
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- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000012423 maintenance Methods 0.000 claims description 24
- 230000004308 accommodation Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
- F04D29/544—Blade shapes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an inlet guide vane regulator convenient to maintain and replace, which comprises an outer shell, a plurality of guide vanes, a plurality of gears, a gear ring, an outer check ring and a driving mechanism, wherein the gear ring is sleeved on the outer side of the outer shell and is in rotary connection with the outer shell, the guide vanes comprise connecting shafts and blades, the connecting shafts penetrate through connecting holes in the side wall of the outer shell and extend out of the outer side of the outer shell, the connecting shafts are in rotary connection with the outer shell, limiting structures for limiting the connecting shafts to move along the axis direction of the connecting shafts are arranged on the outer shell, the gears are in one-to-one correspondence with the guide vanes, the gears are fixed on the corresponding connecting shafts and meshed with the outer check ring, and an output shaft of the driving mechanism is connected with the connecting shaft of one guide vane. The invention provides an inlet guide vane regulator which is convenient to maintain and replace, the angle of an inlet guide vane can be automatically regulated according to different working conditions, and the guide vane is convenient to install, maintain and replace.
Description
Technical Field
The invention relates to the technical field of axial flow fans, in particular to an inlet guide vane regulator convenient to maintain and replace.
Background
The axial flow fan is the air flow in the same direction as the axis of the fan blade, and has very wide application. Flow fans are typically used in applications where flow requirements are high and pressure requirements are low. The axial flow fan fixes the position and moves the air. The utility model provides an import guide vane regulator convenient to maintenance is changed, according to the operating mode of difference, guide vane regulator adjusts, and a plurality of guide vanes rotate certain angle, and the air current will circulate along the passageway with axial inlet direction certain angle. Fluid enters the motor cylinder after passing through the inlet guide vane regulator, the magnetic suspension motor directly drives the impeller to apply work to the fluid, and the energy of the fluid is increased and enters the static impeller along the axial direction. The stationary blade wheel guides the fluid, at the moment, the pressure and the temperature of the fluid are reduced, the flow speed is increased, and the thermodynamic potential energy is converted into kinetic energy. The fluid passes through the tail cone after passing through the stationary blade wheel and enters the diffuser pipe. The kinetic energy of the fluid is converted into static pressure energy. The inlet guide vane regulator provided by the application can realize automatic regulation according to different working conditions, the characteristic curve of the fan is drawn through experiments, and then a program is written and recorded into a control system of the servo motor. Effectively reduces the emptying waste of the air quantity in winter. And the inlet guide vane regulator guide vane connection structure in this application is simple, is convenient for the maintenance change of inlet guide vane regulator.
Chinese patent application publication No. CN1288350C, publication No. 12 months 06 in 2006, entitled "disrotatory axial fan with adjustable inlet guide vane", discloses a disrotatory axial fan with adjustable inlet guide vane, including the wind collector, the wind collector is connected with first stage fan urceolus, second stage fan urceolus and diffusion section of thick bamboo order, first stage motor, first stage movable vane, second stage movable vane and second stage motor set up in proper order, and the motor is supported by the inner tube, installs adjustable inlet guide vane on the first stage fan inner tube, and adjustable inlet guide vane can rotate in positive negative 30 of its original installation angle. When the airflow tidied by the wind collector and the fairing flows through the adjustable inlet guide vanes, the adjustable inlet guide vanes twist the airflow for pre-rotation, and then the airflow sequentially enters the first-stage moving blades, the second-stage moving blades and the fairing body according to the distribution of the flow field speed and the airflow angle regulated by the adjustable inlet guide vanes, and flows out of the fan according to the designed pressure and flow. However, the inlet guide vane needs to be manually adjusted, and is inconvenient to maintain and replace.
Disclosure of Invention
The invention provides an inlet guide vane regulator convenient to maintain and replace, which aims to solve the problems that an inlet guide vane of an axial flow fan in the prior art cannot be automatically regulated and is inconvenient to install and maintain.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an import guide vane regulator convenient to maintenance is changed, includes shell body, a plurality of stator, a plurality of gear, ring gear, outer retaining ring and actuating mechanism, and the ring gear cover is established in the shell body outside and is rotated with the shell body and be connected, and the axis circumference of shell body is followed to a plurality of stator, the stator includes connecting axle and blade, and the blade sets up in the shell body, and the connecting axle stretches out the shell body outside through the connecting hole on the lateral wall of shell body, and the connecting axle rotates with the shell body to be connected, is equipped with the limit structure that the axial direction that the limiting connecting axle removed along the connecting axle on the shell body, and gear and stator one-to-one, gear are fixed on the connecting axle that corresponds, and gear and outer retaining ring meshing, actuating mechanism's output shaft is connected with the connecting axle of one of them stator.
In the technical scheme, the blades of the guide vanes are of fan-shaped structures, the driving mechanism is a driving motor, the driving mechanism drives the gears and the connecting shafts connected with the driving mechanism to rotate, the gears rotate to drive the gear rings to rotate, the gear rings rotate to drive all the gears to rotate together, all the guide vanes are driven to rotate, the angle of the blades changes when the guide vanes rotate, and then the size of the air inlet is regulated, so that the air inlet quantity is regulated. When the guide vane is installed, the guide vane stretches into the outer shell, the connecting shaft penetrates through the connecting hole of the outer shell, when the connecting shaft is installed in place, the connecting shaft is limited to move along the axis direction of the connecting shaft through the limiting structure, then the gear ring and the gear are installed, the gear ring is rotationally connected with the outer shell, the gear is meshed with the gear ring, and the output shaft of the driving mechanism is connected with the connecting shaft of one guide vane to complete the installation. The gear is connected with the connecting shaft through a key groove structure and is limited through bolts and washers at the end parts. When maintenance is needed, the gear ring can be independently disassembled for maintenance, and the independent gear can also be disassembled for maintenance.
Preferably, the limiting structure comprises a plurality of limiting check rings and a plurality of limiting shaft rods, the limiting check rings are in one-to-one correspondence with the guide vanes, the limiting check rings are sleeved outside corresponding connecting shafts, the limiting check rings are fixed on the outer side wall of the outer shell through bolts, a plurality of containing holes are formed in the end face of the outer shell, the limiting shaft rods are arranged in the corresponding containing holes, and one ends of the limiting shaft rods extend out of the containing holes and penetrate into the connecting holes.
The limiting structure can limit the guide vane to move along the axial direction of the connecting shaft, so that the guide vane can only rotate during normal operation, and the axial position of the guide vane cannot deviate. When the guide vanes are required to be disassembled, the corresponding guide vanes can be disassembled for maintenance and replacement only by retracting the corresponding limiting shaft rods. During installation, the guide vane can be installed rapidly.
Preferably, a second bearing is arranged on the connecting shaft, the connecting shaft is rotationally connected with the outer shell through the second bearing, the inner ring connecting shaft of the second bearing is fixed, and the limiting shaft rod and the limiting retainer ring are respectively contacted with the outer ring side wall of the corresponding second bearing. The structure can realize the rotary connection of the connecting shaft and the outer shell.
Preferably, two sides of the connecting shaft are respectively provided with a limiting shaft rod. The structure can enable the axial limit of the connecting shaft to be more stable, the connecting shaft is not easy to fall off and shake.
Preferably, the limiting shaft rod is in threaded connection with the accommodating hole. The structure can realize the telescopic function of the limiting shaft lever.
Preferably, the limiting structure further comprises an inflator pump, the limiting shaft rod is in sliding connection with the accommodating hole, the outer side wall of the limiting shaft rod is in sealing connection with the inner side wall of the accommodating hole, one end, far away from the connecting shaft, of the accommodating hole is sealed, and the accommodating hole is communicated with the inflator pump.
Among the above-mentioned technical scheme, inflator pump and all accommodation holes intercommunication, limit structure quick locking and unlocking can be realized to the structure, and can realize the flexible of all spacing axostylus axostyle through an inflator pump, conveniently installs, dismantles, changes and maintains all stator. When the inflator pump inflates to the accommodating hole, the limiting shaft rod stretches out, and when the inflator pump inhales to the accommodating hole, the limiting shaft rod retracts.
Preferably, a first spring for keeping the limit shaft rod in an extended state is arranged in the accommodating hole. The structure can enable the limiting shaft rod to keep an extending state, even if the inflator pump and the containing hole generate slight air leakage, the limiting shaft rod cannot retract, and the reliability of guide vane connection is guaranteed. The negative pressure generated by the inflator pump can enable the limiting shaft rod to retract against the elastic force of the first spring.
Preferably, the gear ring is provided with an outer baffle ring which is used for limiting the gear ring to move along the axial direction of the outer shell, the outer baffle ring is arranged outside the outer shell and is connected with the outer shell through bolts, and one end of the outer baffle ring is contacted with the end face of the gear ring; the inflator comprises an annular inflator and an annular piston, the annular piston is connected with the annular inflator in a sliding mode, the annular inflator and the annular piston are sleeved outside the shell, and the annular piston is tightly pressed by the outer baffle ring. The structure links the inflation and suction states of the inflator pump with the locking relation of the outer baffle ring, and the limiting structure of the guide vane can not be loosened as long as the gear ring is not detached, so that the stability of guide vane installation in the running state is ensured. The gear ring is not disassembled, the transmission relation among all gears is always present, and accidents are easy to occur in the disassembling process. The structure can ensure that when the gears and the guide vanes are dismounted, the gears and the guide vanes are mutually independent on the transmission structure, so that accidents are avoided.
Preferably, a second spring is arranged in the annular air cylinder, and two ends of the second spring are respectively connected with the annular piston and the annular air cylinder. The second springs can enable negative pressure to be formed in each containing hole when the outer baffle ring is loosened, and each limiting shaft rod is retracted without manually pulling out the annular piston.
Preferably, a first spring for keeping the limit shaft rod in an extending state is arranged in the accommodating hole; the second spring has a higher rate than the first spring. The structure can enable the expansion and contraction of the second spring to overcome the resistance of the first spring.
Preferably, a guide inclined plane is arranged on one side of the limiting shaft rod, which faces the axis of the outer shell. The structure is convenient for the installation of the guide vane.
Preferably, the gear ring is further provided with an outer retainer ring used for limiting the gear ring to move along the axis direction of the outer shell, the outer retainer ring is arranged on the outer side of the outer shell and is connected with the outer shell through bolts, and one end of the outer retainer ring is in contact with the end face of the gear ring. The structure can realize the detachable connection of the gear ring.
Preferably, a first bearing is arranged on the inner side of the gear ring, an outer ring of the first bearing is fixed with the gear ring, one end of an outer retainer ring is tightly pressed on the end face of an inner ring of the first bearing, and the outer retainer ring limits the position of the gear ring by limiting the position of the first bearing.
The beneficial effects of the invention are as follows: (1) facilitating installation and repair replacement of the guide vanes; (2) The gear ring can be independently disassembled for maintenance, and each gear can be independently disassembled for maintenance; (3) The limiting structure is fast locked and unlocked, and the expansion and contraction of all limiting shaft rods can be realized through one inflator pump, so that all guide vanes are convenient to install, disassemble, replace and maintain; (4) The limiting shaft rod can be kept in an extending state, even if the inflator pump and the containing hole generate slight air leakage, the limiting shaft rod cannot retract, and the reliability of guide vane connection is ensured; (5) The inflation and suction states of the inflator are linked with the locking relation of the outer baffle ring, so long as the gear ring is not detached, the limiting structure of the guide vane is not loosened, and the stability of the guide vane installation in the running state is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a partial enlarged view at a in fig. 1:
fig. 3 is a schematic structural view of embodiment 3.
In the figure: the device comprises an outer shell 1, a containing hole 1.1, guide vanes 2, a connecting shaft 2.1, blades 2.2, gears 3, gear rings 4, an outer retainer ring 5, a limiting structure 7, a limiting retainer ring 7.1, a limiting shaft rod 7.2, an inflator 7.3, an annular inflator 7.3.1, an annular piston 7.3.2, a first spring 7.4, a second spring 7.5, a second bearing 8 and a first bearing 9.
Detailed Description
The invention is further described below with reference to the drawings and specific embodiments.
Example 1:
as shown in fig. 1, an inlet guide vane regulator convenient to maintain and replace comprises an outer shell 1, a plurality of guide vanes 2, a plurality of gears 3, a gear ring 4, an outer retainer ring 5, a driving mechanism and an outer retainer ring 5 for limiting the gear ring 4 to move along the axis direction of the outer shell 1, wherein the gear ring 4 is sleeved outside the outer shell 1, a first bearing 9 is arranged on the inner side of the gear ring 4, the gear ring 4 is rotatably connected with the outer shell 1 through the first bearing 9, the outer ring of the first bearing 9 is fixed with the gear ring 4, the outer retainer ring 5 is arranged outside the outer shell 1 and is in bolt connection with the outer shell 1, and one end of the outer retainer ring 5 is in compression with the end face of the inner ring of the first bearing 9. The outer retainer ring 5 achieves a positional restriction of the ring gear 4 by restricting the position of the first bearing 9. The structure can realize the detachable connection of the gear ring 4. The axis circumference that a plurality of stator 2 was followed shell 1 sets up, stator 2 includes connecting axle 2.1 and blade 2.2, blade 2.2 sets up in shell 1, connecting axle 2.1 passes the connecting hole on shell 1's the lateral wall and stretches out shell 1 outside, connecting axle 2.1 rotates with shell 1 to be connected, be equipped with the limit structure 7 that restriction connecting axle 2.1 removed along the axis direction of connecting axle 2.1 on the shell 1, gear 3 and stator 2 one-to-one, gear 3 is fixed on corresponding connecting axle 2.1, gear 3 and outer retaining ring 5 meshing, actuating mechanism's output shaft is connected with connecting axle 2.1 of one of them stator 2.
As shown in fig. 2, the connecting shaft 2.1 is provided with a second bearing 8, the connecting shaft 2.1 is rotatably connected with the outer casing 1 through the second bearing 8, and the inner ring connecting shaft 2.1 of the second bearing 8 is fixed through a shaft shoulder and clamp spring structure. The limiting structure 7 comprises a plurality of limiting check rings 7.1 and a plurality of limiting shaft rods 7.2, wherein the limiting check rings 7.1 are in one-to-one correspondence with the guide vanes 2, the limiting check rings 7.1 are sleeved on the outer sides of the corresponding connecting shafts 2.1, the limiting check rings 7.1 are fixed on the outer side wall of the outer shell body 1 through bolts, a plurality of containing holes 1.1 are formed in the end face of the outer shell body 1, the limiting shaft rods 7.2 are arranged in the corresponding containing holes 1.1, and one ends of the limiting shaft rods 7.2 extend out of the containing holes 1.1 and extend into the connecting holes. Two sides of the connecting shaft 2.1 are respectively provided with a limiting shaft lever 7.2. The limiting shaft rod 7.2 and the limiting check ring 7.1 are respectively contacted with the outer ring side wall of the corresponding second bearing 8, and the limiting shaft rod 7.2 and the limiting check ring 7.1 limit the axial position of the connecting shaft 2.1 by limiting the position of the second bearing 8.
In the above technical scheme, the blade 2.2 of stator 2 is fan-shaped structure, and actuating mechanism is driving motor, drives the gear 3 and the connecting axle 2.1 that are connected with actuating mechanism through actuating mechanism and rotates, and gear 3 rotates and can drive ring gear 4 and rotate, and ring gear 4 rotates and can drive all gears 3 and rotate together, and then drives all stator 2 and rotate, and the angle of blade 2.2 changes when stator 2 rotates, and then adjusts the size of air inlet, realizes the regulation to the intake. When the guide vane 2 is installed, the guide vane 2 stretches into the outer shell 1, then the connecting shaft 2.1 penetrates through the connecting hole of the outer shell 1, when the connecting shaft 2.1 is installed in place, the connecting shaft 2.1 is limited to move along the axis direction of the connecting shaft 2.1 through the limiting structure 7, then the gear ring 4 and the gear 3 are installed, the gear ring 4 is rotationally connected with the outer shell 1, the gear 3 is meshed with the gear ring 4, and then the output shaft of the driving mechanism is connected with the connecting shaft 2.1 of one guide vane 2, so that the installation is completed. The gear 3 is connected with the connecting shaft 2.1 through a key groove structure and is limited through bolts and washers at the end part. When maintenance is needed, the gear ring 4 can be independently disassembled for maintenance, and the independent gear 3 can be disassembled for maintenance.
Example 2:
as shown in fig. 2, on the basis of embodiment 1, the limit shaft 7.2 is screwed into the receiving bore 1.1. The structure can enable the axial limit of the connecting shaft 2.1 to be more stable, and the connecting shaft 2.1 is not easy to fall off and shake.
Example 3:
as shown in fig. 3, on the basis of embodiment 1, the limit structure 7 further comprises an inflator pump 7.3, the limit shaft lever 7.2 is slidably connected with the accommodating hole 1.1, the outer side wall of the limit shaft lever 7.2 is hermetically connected with the inner side wall of the accommodating hole 1.1, one end of the limit shaft lever 7.2 extends into the connecting hole, one end of the connecting hole, which is close to the connecting shaft 2.1, is provided with a limit ring, the limit shaft is provided with a step structure, the limit shaft lever 7.2 can be limited to extend completely through the step structure and the limit ring, a first spring 7.4 for enabling the limit shaft lever 7.2 to maintain an extending state is arranged in the accommodating hole 1.1, one end, which is far away from the connecting shaft 2.1, of the accommodating hole 1.1 is sealed through a sealing plug, and the accommodating hole 1.1 is communicated with the inflator pump 7.3.
Among the above-mentioned technical scheme, inflator pump 7.3 and all accommodation holes 1.1 intercommunication, limit structure 7 quick locking and unblock can be realized to the structure, and can realize the flexible of all spacing axostylus axostyle 7.2 through an inflator pump 7.3, conveniently installs, dismantles, changes and maintains all stator 2. When the inflator pump 7.3 inflates to the accommodating hole 1.1, the limiting shaft lever 7.2 stretches out, and when the inflator pump 7.3 inhales to the accommodating hole 1.1, the limiting shaft lever 7.2 retracts.
Example 4:
as shown in fig. 3, on the basis of embodiment 3, the inflator 7.3 comprises an annular inflator 7.3.1 and an annular piston 7.3.2, the annular piston 7.3.2 is slidably connected with the annular inflator 7.3.1, the annular inflator 7.3.1 and the annular piston 7.3.2 are sleeved outside the outer shell 1, and the outer baffle ring 5 compresses the annular piston 7.3.2. The annular inflator 7.3.1 is internally provided with a second spring 7.5, and two ends of the second spring 7.5 are respectively connected with the annular piston 7.3.2 and the annular inflator 7.3.1. The second spring 7.5 has a higher stiffness than the first spring 7.4. The arrangement allows the expansion and contraction of the second spring 7.5 against the resistance of the first spring 7.4. The side of the limiting shaft lever 7.2 facing the axis of the outer shell 1 is provided with a guiding inclined plane.
In the technical scheme, the annular inflator 7.3.1 and the annular piston 7.3.2 link the inflation and suction states of the inflator 7.3 with the locking relation of the outer check ring 5, so long as the gear ring 4 is not dismounted, the limiting structure 7 of the guide vane 2 is not loosened, and the stability of the guide vane 2 in the running state is ensured. And the gear ring 4 is not dismounted, the transmission relation among the gears 3 always exists, and accidents are easy to occur in the dismounting process. The structure can ensure that when the gears 3 and the guide vanes 2 are dismounted, the gears 3 and the guide vanes 2 are mutually independent in the transmission structure, so that accidents are avoided.
The beneficial effects of the invention are as follows: (1) facilitating installation and repair replacement of the guide vanes 2; (2) The gear ring 4 can be independently disassembled for maintenance, and the gears 3 can be independently disassembled for maintenance; (3) The limiting structure 7 is quickly locked and unlocked, and the expansion and the contraction of all the limiting shaft rods 7.2 can be realized through one inflator pump 7.3, so that all the guide vanes 2 are convenient to install, disassemble, replace and maintain; (4) The limiting shaft rod 7.2 can be kept in an extending state, even if the inflator pump 7.3 and the containing hole 1.1 generate slight air leakage, the limiting shaft rod 7.2 can not retract, and the connection reliability of the guide vane 2 is ensured; (5) The inflation and suction states of the inflator 7.3 are linked with the locking relation of the outer retainer ring 5, so long as the gear ring 4 is not detached, the limiting structure 7 of the guide vane 2 is not loosened, and the stability of the guide vane 2 in the running state is ensured.
Claims (10)
1. The utility model provides an import guide vane regulator convenient to maintenance and replacement, its characterized in that includes shell body, a plurality of guide vane, a plurality of gear, ring gear, outer retaining ring and actuating mechanism, the ring gear cover is established in the shell body outside and is connected with the shell body rotation, a plurality of guide vane sets up along the axis circumference of shell body, the guide vane includes connecting axle and blade, the blade sets up in the shell body, the connecting axle stretches out the shell body outside through the connecting hole on the lateral wall of shell body, the connecting axle rotates with the shell body to be connected, be equipped with the limit structure that the axial direction of limiting the connecting axle removed along the connecting axle on the shell body, gear and guide vane one-to-one correspond, the gear is fixed on the connecting axle that corresponds, gear and outer retaining ring meshing, actuating mechanism's output shaft is connected with the connecting axle of one of them guide vane;
the limiting structure comprises a plurality of limiting check rings and a plurality of limiting shaft rods, the limiting check rings are in one-to-one correspondence with the guide vanes, and the limiting check rings are sleeved outside the corresponding connecting shafts; the end face of the outer shell is provided with a plurality of accommodating holes, the limiting shaft rod is arranged in the corresponding accommodating hole, and one end of the limiting shaft rod extends out of the accommodating hole and penetrates into the connecting hole; and the connecting shaft is provided with a second bearing, and the limiting shaft rod and the limiting check ring are respectively contacted with the outer ring side wall of the corresponding second bearing.
2. The inlet guide vane regulator for easy maintenance and replacement as defined in claim 1, wherein the limit retainer ring is fixed to the outer sidewall of the housing body by bolts.
3. The inlet guide vane regulator for easy maintenance and replacement according to claim 2, wherein the connecting shaft is rotatably connected to the outer casing through a second bearing, and an inner ring connecting shaft of the second bearing is fixed.
4. The inlet guide vane regulator for easy maintenance and replacement as defined in claim 2, wherein each of said connecting shafts has a limiting shaft on each side thereof.
5. An inlet guide vane regulator for facilitating maintenance replacement according to claim 2, 3 or 4, wherein the limit shaft is threadably coupled to the receiving bore.
6. The inlet guide vane regulator for easy maintenance and replacement according to claim 2, 3 or 4, wherein the limiting structure further comprises an inflator, the limiting shaft is slidably connected with the accommodating hole, an outer side wall of the limiting shaft is hermetically connected with an inner side wall of the accommodating hole, one end of the accommodating hole far away from the connecting shaft is hermetically sealed, and the accommodating hole is communicated with the inflator.
7. The inlet guide vane regulator for easy maintenance and replacement according to claim 6, further comprising an outer ring for restricting movement of the ring gear in the axial direction of the outer casing, the outer ring being disposed outside the outer casing and bolted to the outer casing, one end of the outer ring being in contact with an end face of the ring gear; the inflator comprises an annular inflator and an annular piston, the annular piston is connected with the annular inflator in a sliding mode, the annular inflator and the annular piston are sleeved outside the shell, and the annular piston is tightly pressed by the outer baffle ring.
8. The inlet guide vane regulator for easy maintenance and replacement as defined in claim 7, wherein a second spring is provided in the annular cylinder, and two ends of the second spring are respectively connected to the annular piston and the annular cylinder.
9. The inlet guide vane regulator for easy maintenance and replacement as defined in claim 8, wherein a first spring for maintaining the limit shaft in an extended state is provided in the accommodation hole; the second spring has a higher rate than the first spring.
10. The inlet guide vane regulator for convenient maintenance and replacement according to claim 1, 2, 3 or 4, wherein the first bearing is arranged on the inner side of the gear ring, the outer ring of the first bearing is fixed with the gear ring, one end of the outer retainer ring is tightly pressed against the end face of the inner ring of the first bearing, and the outer retainer ring limits the position of the gear ring by limiting the position of the first bearing.
Priority Applications (1)
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| CN202110954205.3A CN114109916B (en) | 2021-08-19 | 2021-08-19 | Inlet guide vane regulator convenient to maintain and replace |
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| CN202110954205.3A CN114109916B (en) | 2021-08-19 | 2021-08-19 | Inlet guide vane regulator convenient to maintain and replace |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001107896A (en) * | 1999-10-07 | 2001-04-17 | Denso Corp | Air blower unit |
| JP2001159398A (en) * | 1999-12-03 | 2001-06-12 | Yonehara Giken Kk | Pressurizing centrifugal pump |
| CN1789673A (en) * | 2004-09-21 | 2006-06-21 | 斯奈克玛公司 | Control lever for setting angle of stator blade in turboshaft engine |
| CN201265558Y (en) * | 2008-09-09 | 2009-07-01 | 沈阳鼓风机(集团)有限公司 | Inlet guide blade regulator of single-axle cantilever compressor |
| CN111963465A (en) * | 2020-08-27 | 2020-11-20 | 绍兴智新机电科技有限公司 | Two-stage axial flow non-circulation air-out low-noise fan |
-
2021
- 2021-08-19 CN CN202110954205.3A patent/CN114109916B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001107896A (en) * | 1999-10-07 | 2001-04-17 | Denso Corp | Air blower unit |
| JP2001159398A (en) * | 1999-12-03 | 2001-06-12 | Yonehara Giken Kk | Pressurizing centrifugal pump |
| CN1789673A (en) * | 2004-09-21 | 2006-06-21 | 斯奈克玛公司 | Control lever for setting angle of stator blade in turboshaft engine |
| CN201265558Y (en) * | 2008-09-09 | 2009-07-01 | 沈阳鼓风机(集团)有限公司 | Inlet guide blade regulator of single-axle cantilever compressor |
| CN111963465A (en) * | 2020-08-27 | 2020-11-20 | 绍兴智新机电科技有限公司 | Two-stage axial flow non-circulation air-out low-noise fan |
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| CN114109916A (en) | 2022-03-01 |
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