CN117072469B - Centrifugal ventilator with oil bath type connecting bearing and method - Google Patents
Centrifugal ventilator with oil bath type connecting bearing and method Download PDFInfo
- Publication number
- CN117072469B CN117072469B CN202311135683.7A CN202311135683A CN117072469B CN 117072469 B CN117072469 B CN 117072469B CN 202311135683 A CN202311135683 A CN 202311135683A CN 117072469 B CN117072469 B CN 117072469B
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- gear
- transmission
- rotating
- shaft
- oil tank
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- 238000000034 method Methods 0.000 title abstract description 4
- 230000005540 biological transmission Effects 0.000 claims abstract description 145
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000003921 oil Substances 0.000 claims description 74
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 48
- 229910052742 iron Inorganic materials 0.000 claims description 24
- 239000010687 lubricating oil Substances 0.000 claims description 22
- 210000004907 gland Anatomy 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012634 fragment Substances 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- 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
- F04D29/06—Lubrication
- F04D29/063—Lubrication 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention relates to the technical field of ventilator manufacturing, in particular to a centrifugal ventilator with an oil bath type connecting bearing and a method thereof, comprising a damping rack, wherein one end of the damping rack is provided with a first support frame, the upper end of the first support frame is provided with a shell, the interior of the shell is provided with an impeller, the other end of the damping rack is provided with a driving mechanism, the driving mechanism comprises a driving motor and a first transmission structure, the first transmission structure comprises a driving wheel, a driven wheel, a transmission belt and a belt protection cover, a variable speed transmission mechanism is arranged between the driven wheel and the impeller, the variable speed transmission mechanism comprises a second support frame, a sealed oil tank, a first rotation structure and a second rotation structure, and a plurality of variable speed transmission structures are arranged in the sealed oil tank; the invention is provided with the first rotating structure, the second rotating structure and the variable speed transmission structure, thereby realizing that the ventilator blows out air flows with different flow rates and meeting the use of the ventilator in different environments.
Description
Technical Field
The invention relates to the technical field of ventilator manufacturing, in particular to a centrifugal ventilator with an oil bath type connecting bearing and a method.
Background
The ventilator is a driven fluid machine which can raise the pressure of gas and discharge the gas by means of inputted mechanical energy, and is widely used for ventilation, dust-discharging and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air-inducing of boilers and industrial kilns, cooling and ventilation in air-conditioning equipment and household appliances, drying and selection of grains, inflation and propulsion of wind tunnel wind sources and air cushion ships, etc.
The existing ventilator generally adopts a main shaft to directly connect a driving motor and fan blades, and the rotating speed of the main shaft is fixed when the driving motor is in a stable working state, so that the air flow rate blown out by the ventilator cannot be adjusted, and the ventilator cannot be used in different environments; meanwhile, although some connecting modes of the transmission mechanism are adopted in the prior art, scrap iron generated by the transmission mechanism due to long-time abrasion cannot be removed, and the service life of the transmission mechanism is seriously influenced.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides the centrifugal ventilator with the oil bath type connecting bearing, and the centrifugal ventilator is provided with the first rotating structure, the second rotating structure and the variable speed transmission structure, and the variable speed transmission structure with different transmission ratios can be connected between the first transmission structure and the second transmission structure according to the use condition of the ventilator, so that the impeller obtains different rotating speeds, the ventilator blows out air flows with different flow rates, and the use of the ventilator under different environments is satisfied.
In order to solve the problems in the prior art, the invention provides a centrifugal ventilator with an oil bath type connecting bearing, which comprises a damping rack, wherein one end of the damping rack is provided with a first support frame, the upper end of the first support frame is provided with a shell, the shell is provided with an air inlet, an air outlet and a sewage outlet, an impeller is arranged in the shell, the other end of the damping rack is provided with a driving mechanism for driving the impeller to rotate, the driving mechanism comprises a driving motor, the driving motor is fixedly connected with the damping rack, the output end of the driving motor is provided with a first transmission structure, the first transmission structure comprises a driving wheel, a driven wheel, a transmission belt and a belt protection cover, the driving wheel is connected with the output shaft of the driving motor, two ends of the transmission belt are respectively connected with the driving wheel and the driven wheel, a variable transmission mechanism is arranged between the driven wheel and the impeller, the variable transmission mechanism comprises a second support frame, the upper end of the second support frame is provided with a sealed oil tank, one end of the sealed oil tank is provided with a first rotation structure, the other end of the sealed oil tank is provided with a second rotation structure, one end of the second rotation structure is connected with the impeller, the sealed oil tank is internally provided with a plurality of variable transmission structures, and two ends of the transmission structures are respectively connected with the first rotation structure and the second rotation structure.
Preferably, the sealed oil tank includes first box and second box, the oiling mouth has been seted up to the upper end of first box, the both ends of second box are provided with first shaft housing and second shaft housing respectively, be provided with first gland nut in the oiling mouth, be provided with first fixed bolster in the second box, first fixed bolster divide into the cabin that two sizes are the same with sealed oil tank, it has the second fixed bolster to insert on the first fixed bolster, first rotating structure includes first pivot and first gear, one end and one side of first fixed bolster of first pivot are passed through the bearing and are connected, the sealed oil tank is stretched out to the other end of first pivot, first gear cover is established in first pivot, second rotating structure includes second pivot and second gear, the one end and the opposite side of first fixed bolster of second pivot are passed through the bearing and are connected, every variable transmission structure all includes the third gear, fourth gear and transmission connecting axle, the third gear is connected with first gear meshing transmission, fourth gear and second gear meshing transmission are connected, the middle part of transmission connecting axle passes the second fixed bolster, and transmission connecting axle and fourth gear all are connected with the first end of fourth gear, every straight line structure that moves.
Preferably, the first gear has the same size and number of teeth as the second gear, the third gear in each variable speed transmission structure has different numbers of teeth, and the fourth gear in each variable speed transmission structure has the same number of teeth.
Preferably, the width of each third gear is the same, and the width of each third gear is greater than the width of the first gear, the width of each fourth gear is the same, and the width of each fourth gear is the same as the width of the second gear.
Preferably, the linear moving structure comprises a linear driver, the linear driver is arranged on the second shaft cover, an output shaft of the linear driver stretches into the sealed oil tank, a first connecting block is arranged at the output shaft end of the linear driver, one end of the first connecting block is connected with the linear driver, a connecting bolt is arranged at the other end of the first connecting block, one end of the connecting bolt is fixedly connected with the transmission connecting shaft, and the other end of the connecting bolt is rotationally connected with the first connecting block.
Preferably, the lower extreme of second box has seted up the oil drain, and oil drain department is provided with the funnel cover body, and the big end of funnel cover body up and oil drain sealing connection.
Preferably, the hopper cover is internally provided with the iron fillings adsorption structure that is arranged in adsorbing the iron fillings in the lubricating oil, and the iron fillings adsorption structure includes the mounting bracket, and the symmetry is provided with two magnets on the mounting bracket.
Preferably, the upper end of every magnet all is provided with the third rotating structure who is used for rotary magnet, and third rotating structure includes the turning block, and the turning block rotates with the mounting bracket to be connected, and the lower extreme and the magnet of turning block are connected, and the upper end of turning block is provided with the second connecting block, and the upper end of second connecting block is provided with rotary vane.
Preferably, the lower extreme of every magnet all is provided with the iron fillings and takes out the structure, and the iron fillings is taken out the structure and is included second gland nut, and the upper end of second gland nut is provided with the annular plate, and the internal diameter of annular plate is the same with the external diameter size of magnet, is provided with a plurality of connecting rod between annular plate and the second gland nut.
Preferably, the upper end of the first box body is provided with an air inlet, the upper end of the air inlet is provided with an air filtering structure, the air filtering structure comprises a valve, the valve cover is arranged at the upper end of the air inlet, the upper end of the valve is provided with an annular cover, the surface of the annular cover is provided with a plurality of air holes, and a filter element is arranged in the annular cover.
Compared with the prior art, the beneficial effects of this application are:
1. the invention is provided with the first rotating structure, the second rotating structure and the variable speed transmission structure, the first transmission structure drives the second transmission structure to work through the variable speed transmission structures with different transmission ratios, so that the rotating speed of the second transmission structure is different from that of the first transmission structure, and the variable speed transmission structures with different transmission ratios can be connected between the first transmission structure and the second transmission structure according to the use condition of the ventilator, so that the impeller obtains different rotating speeds, and the ventilator blows out airflow with different flow rates, thereby meeting the use of the ventilator in different environments.
2. The invention is provided with a first rotating shaft, a first gear, a second rotating shaft, a second gear, a third gear, a fourth gear, a transmission connecting shaft and a linear moving structure, wherein the first rotating shaft is connected with a driven wheel, the second rotating shaft is connected with an impeller, a driving motor drives a driving wheel to rotate, the driving wheel drives a driven wheel to rotate through a transmission belt, the driven wheel drives the first rotating shaft to rotate, the first rotating shaft drives the first gear to rotate, the first gear drives the third gear to rotate, the third gear drives a transmission connecting rod to rotate, the transmission connecting rod drives a fourth gear to rotate, the fourth gear drives the second gear to rotate, the second gear drives the second rotating shaft to rotate, when the transmission ratio between the first gear and the second gear needs to be adjusted, the original variable speed transmission structure connected between the first gear and the second gear works in the linear moving structure, the transmission connecting shaft is pushed to move, the third gear and the fourth gear are separated from the first gear and the second gear respectively, and meanwhile, the other variable speed transmission structure in the first variable speed transmission structure works, the transmission connecting shaft is pulled to move, and the third gear is meshed with the first gear and the fourth gear to be connected with the second gear in the meshed mode, and the variable speed transmission ratio is connected between the first gear and the second gear and the variable speed transmission structure; the third gears of each variable speed transmission structure have different numbers of teeth and the fourth gears have the same number of teeth, so that each variable speed transmission structure has transmission ratios of different sizes.
3. According to the invention, the scrap iron adsorption structure ensures that the lubricating oil does not contain scraps, so that the scraps are prevented from being mixed in the lubricating oil to abrade the gear again, and the service life of the gear is prolonged.
Drawings
FIG. 1 is a perspective view of a centrifugal fan with oil bath type connection bearings;
FIG. 2 is a perspective view II of a centrifugal fan with oil bath type connection bearings;
FIG. 3 is a front view of a centrifugal fan with oil bath type connection bearings;
FIG. 4 is a cross-sectional view at A-A in FIG. 3;
FIG. 5 is a perspective view of a variable speed drive in a centrifugal fan with oil bath type connection bearings;
FIG. 6 is a perspective view of a variable speed drive in a centrifugal fan with oil bath connection bearings concealing a first housing and a second housing;
FIG. 7 is a front view of a variable speed drive in a centrifugal fan with oil bath connection bearings concealing a first housing and a second housing;
FIG. 8 is a perspective view of a variable speed drive in a centrifugal fan with oil bath type connection bearings;
FIG. 9 is a perspective view of a second housing, a funnel cover and a scrap iron adsorbing structure in a centrifugal fan having an oil bath type connection bearing;
FIG. 10 is a perspective view of a iron chip adsorbing structure in a centrifugal fan with an oil bath type connection bearing;
FIG. 11 is a perspective view of a magnet, a third rotating structure and a scrap iron removing structure in a centrifugal fan having an oil bath type connection bearing;
fig. 12 is a cross-sectional view of a first housing and gas filtering structure in a centrifugal fan with oil bath type connection bearings.
The reference numerals in the figures are: 1-a damping rack; 2-a first support frame; 3-a housing; 31-an air inlet; 32-an air outlet; 33-a sewage outlet; 4-impeller; 5-a driving mechanism; 51-driving a motor; 52-a first transmission structure; 521-driving wheel; 522—driven wheel; 523-driving belt; 524-belt guard; 6-a variable speed transmission mechanism; 61-a second support frame; 62-sealing the oil tank; 621-a first box; 6211-an oil filling port; 6212-inlet; 622-second case; 6221-oil drain; 623-a first shaft cover; 624-second shaft cover; 625-funnel cover; 63-a first rotating structure; 631-a first spindle; 632-a first gear; 64-a second rotating structure; 641-a second rotating shaft; 642-a second gear; 65-a first seal nut; 66-a first fixed bracket; 67-a second fixed bracket; 68-a variable speed drive; 681-third gear; 682-fourth gear; 683-a drive connection shaft; 684-linear motion structure; 6841-linear drive; 6842-first connection block; 6843-connecting bolt; 7-an iron filings adsorption structure; 71-mounting rack; 72-magnet; 73-a third rotational structure; 731-turning blocks; 732-a second connection block; 733-rotating blades; 74-scrap iron taking-out structure; 741-a second seal nut; 742-an annular plate; 743-connecting rod; 8-a gas filtration structure; 81-valve; 82-an annular cover; 821-ventilation holes; 83-filter element.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1 to 12, there is shown: the utility model provides a centrifugal fan with oil bath formula connecting bearing, including shock attenuation frame 1, shock attenuation frame 1's one end is provided with first support frame 2, first support frame 2's upper end is provided with casing 3, casing 3 has air intake 31, air outlet 32 and drain 33, casing 3's inside is provided with impeller 4, shock attenuation frame 1's the other end is provided with the rotatory actuating mechanism 5 of drive impeller 4, actuating mechanism 5 includes driving motor 51, driving motor 51 and shock attenuation frame 1 fixed connection, driving motor 51's output is provided with first transmission structure 52, first transmission structure 52 includes the action wheel 521, from driving wheel 522, drive belt 523 and belt protection casing 524, action wheel 521 and driving motor 51's output shaft, the both ends of drive belt 523 are connected with action wheel 521 and from driving wheel 522 transmission respectively, be provided with variable speed drive mechanism 6 between driving wheel 522 and the impeller 4, variable speed drive mechanism 6 includes second support frame 61, the upper end of second support frame 61 is provided with sealed oil tank 62, sealed oil tank 62's one end is provided with first rotating structure 63, first rotating structure 63's one end and driven wheel 522 are connected, sealed 62's the other end is provided with driven wheel 522, sealed oil tank 62's other end is provided with second rotating structure 64, the other end is connected with first rotating structure 64 and a plurality of rotating structure 68, speed change structure 68 is connected with the inside of rotating structure 64 and variable speed drive structure 68.
When the ventilator works, the driving motor 51 drives the driving wheel 521 to rotate, the driving wheel 521 drives the driven wheel 522 to rotate through the driving belt 523, the belt protective cover 524 can prevent a worker from contacting with the driving belt 523, a protective effect is achieved on the worker, the driven wheel 522 drives the first transmission structure 52 to work, the first transmission structure 52 drives one variable speed transmission structure 68 to work, the variable speed transmission structure 68 drives the second transmission structure to work, the second transmission structure drives the impeller 4 to rotate, the impeller 4 rotates to suck air into the shell 3 from the air inlet 31, meanwhile, the impeller 4 accelerates air flow, the air flow is discharged from the air outlet 32, when the driving motor 51 directly drives the impeller 4 to rotate, the rotating speed of the impeller 4 is fixed, the air flow speed blown out by the impeller 4 is the same, the ventilator cannot adjust the speed of the air flow according to the use condition, therefore, the variable speed transmission structures 68 with different transmission ratios are arranged, the first transmission structure 52 drives the second transmission structure 68 with different rotating speeds through the variable speed transmission structures with different transmission ratios, the rotating speeds of the second transmission structure is different from the rotating speeds of the first transmission structure 52, the variable speed transmission structure 68 with different speed ratios can be connected to the variable speed transmission structures with the first transmission structure 52 according to the use conditions, and different air flow speeds of the ventilator can be realized under different conditions.
Referring to fig. 4, 5 and 6, it is shown that: the sealed oil tank 62 includes first box 621 and second box 622, the oiling mouth 6211 has been seted up to the upper end of first box 621, the both ends of second box 622 are provided with first lid 623 and second lid 624 respectively, be provided with first gland nut 65 in the oiling mouth 6211, be provided with first fixed bolster 66 in the second box 622, first fixed bolster 66 divides sealed oil tank 62 into two cabins the same size, insert on the first fixed bolster 66 and be equipped with second fixed bolster 67, first rotating structure 63 includes first pivot 631 and first gear 632, the one end of first pivot 631 is connected through the bearing with one side of first fixed bolster 66, the other end of first pivot 631 stretches out sealed oil tank 62, first gear 632 cover is established on first pivot 631, second rotating structure 64 includes second pivot 641 and second gear 642, the opposite side of second pivot 641 is connected through the bearing with first fixed bolster 66, every speed change transmission structure 68 all includes third gear 681, fourth gear 682 and transmission connecting axle 683, first gear 6813 and transmission connecting structure 683 are connected through the bearing with the first gear 6813, every second gear 683 is connected with the transmission connecting structure 683, the transmission connecting with the transmission structure 683 is connected through the transmission connecting with the first gear 682, every two ends of fourth gear 683.
The staff injects lubricating oil from the oil filling port 6211 into the sealed oil tank 62, the first rotating shaft 631 is connected with the driven wheel 522, the second rotating shaft 641 is connected with the impeller 4, the driving motor 51 drives the driving wheel 521 to rotate, the driving wheel 521 drives the driven wheel 522 to rotate through the transmission belt 523, the driven wheel 522 drives the first rotating shaft 631 to rotate, the first rotating shaft 631 drives the first gear 632 to rotate, the first gear 632 drives the third gear 681 to rotate, the third gear 681 drives the transmission connecting rod 743 to rotate, the transmission connecting rod 743 drives the fourth gear 682 to rotate, the fourth gear 682 drives the second gear 642 to rotate, the second gear 642 drives the second rotating shaft 641 to rotate, when the transmission ratio between the first gear 632 and the second gear 642 needs to be adjusted, the original speed change transmission structure 68 connected between the first gear 632 and the second gear 642 works in a linear movement structure 684, the transmission connecting shaft 683 is pushed to move, the third gear 681 and the fourth gear 682 are separated from the first gear 681 and the second gear 642 respectively, and meanwhile, the linear movement structure 684 in the transmission structure in the transmission connecting structure 68 is pulled to work, and the first speed change transmission structure is connected between the first gear 632 and the second gear 642 is meshed with the second gear 68.
Referring to fig. 6, it is shown: the first gear 632 is sized and shaped to have the same number of teeth as the second gear 642, the third gear 681 in each variable speed drive 68 has a different number of teeth, and the fourth gear 682 in each variable speed drive 68 has the same number of teeth.
The number of teeth of the fourth gear 682 may be the same as or different from the number of teeth of the third gear 681, and when the number of teeth of the fourth gear 682 is the same as the number of teeth of the third gear 681, the transmission ratio is one, the rotational speeds of the first gear 632 and the second gear 642 are the same, and when the number of teeth of the fourth gear 682 is different from the number of teeth of the third gear 681, the number of teeth of the fourth gear 682 is the same due to the difference in the number of teeth of the third gear 681 in each of the variable transmission structures 68, so that each of the variable transmission structures 68 has a transmission ratio of different sizes.
Referring to fig. 7, it is shown that: the width of each third gear 681 is the same, and the width of each third gear 681 is greater than the width of the first gear 632, the width of each fourth gear 682 is the same, and the width of each fourth gear 682 is the same as the width of the second gear 642.
The first gear 632 drives the variable speed transmission structure 68 connected to the transmission path to work, due to different transmission ratios, the gear teeth of the fourth gear 682 in the rest variable speed transmission structure 68 cannot be aligned with the gear teeth of the second gear 642, the second gear 642 cannot be in meshed transmission connection with the fourth gear 682, and it is difficult to connect the rest variable speed transmission structure 68 between the first gear 632 and the second gear 642, so that the width of the third gear 681 is set to be larger than that of the first gear 632, the third gear 681 connected to the variable speed transmission structure 68 in the transmission path is meshed with the first gear 632, the fourth gear 682 is meshed with the second gear 642, the third gear 681 not connected to the transmission path is meshed with the first gear 632, the fourth gear 682 is not connected with the second gear 642, and when the first gear 632 rotates, the third gear 681 with a plurality of different numbers is simultaneously driven to rotate, the fourth gear 682 is driven to rotate, the third gear 681 not connected to the transmission path is meshed with the fourth gear 642, and the fourth gear 682 is driven to idle rotation, and the fourth gear 682 is not connected to the fourth gear 682 in the transmission path, thereby realize the transmission with the same transmission ratio.
Referring to fig. 6 and 8, it is shown that: the linear movement structure 684 comprises a linear driver 6841, the linear driver 6841 is arranged on the second shaft cover 624, an output shaft of the linear driver 6841 extends into the sealed oil tank 62, a first connecting block 6842 is arranged at an output shaft end of the linear driver 6841, one end of the first connecting block 6842 is connected with the linear driver 6841, a connecting bolt 6843 is arranged at the other end of the first connecting block 6842, one end of the connecting bolt 6843 is fixedly connected with the transmission connecting shaft 683, and the other end of the connecting bolt 6843 is rotationally connected with the first connecting block 6842.
The linear driver 6841 may select an electric push rod, when the variable speed transmission structure 68 with different transmission ratios needs to be replaced, the linear driver 6841 works to pull the transmission connecting shaft 683 connected to the transmission path, so that the fourth gear 682 is separated from the second gear 642, then the variable speed transmission structure 68 needing to be connected to the transmission path works, the linear driver 6841 pushes the transmission connecting shaft 683, so that the fourth gear 682 is connected to the second gear 642, the transmission connecting shaft 683 which is not connected to the transmission path rotates under the action of the third gear 681 all the time, the transmission connecting shaft 683 and the first connecting block 6842 relatively rotate, meanwhile, the first connecting block 6842 can apply a pulling force and a pushing force to the transmission connecting shaft 683, so that a connecting bolt 6843 is arranged, one end of the connecting bolt 6843 is fixedly connected with the transmission connecting shaft 683, the connecting shaft 683 drives the connecting bolt 6843 to rotate when rotating, meanwhile, the other end of the connecting bolt 6843 is provided with two blocking pieces, and the two blocking pieces limit the connecting bolt 6843 to the first connecting block 6842, so that the transmission connecting shaft 683 can still move when the transmission connecting shaft 683 rotates, and the linear driver 6841 can still move when the transmission connecting shaft 683.
Referring to fig. 4, 5 and 9, there is shown: an oil drain hole 6221 is formed in the lower end of the second box 622, a funnel cover 625 is arranged at the oil drain hole 6221, and the large end of the funnel cover 625 faces upwards and is in sealing connection with the oil drain hole 6221.
Gears rotate in the sealed oil tank 62, the collision between each gear can produce the piece, some piece can deposit in the bottom of second box 622, when changing the lubricating oil in the sealed oil tank 62, if the lower extreme of second box 622 is comparatively level, the piece adheres in the bottom of second box 622 under the effect of comparatively thick lubricating oil, the piece is difficult to flow out sealed oil tank 62 along with lubricating oil for the piece is mixed with to the lubricating oil of change immediately, therefore set up funnel cover 625 in drain hole 6221 department, the piece falls on the inner wall of the funnel cover 625 of slope when depositing, make the piece have the force that obtains the downward movement, when the drain, lubricating oil flows out along the funnel cover 625 of slope, apply the downward force of slope to the piece, take the piece out sealed oil tank 62, thereby reduce the quantity that the piece remained in the sealed oil tank 62.
Referring to fig. 9 and 10, it is shown that: be provided with in the funnel cover 625 and be used for adsorbing the iron fillings adsorption structure 7 of iron fillings in the lubricating oil, iron fillings adsorption structure 7 includes mounting bracket 71, and the symmetry is provided with two magnets 72 on the mounting bracket 71.
Some fragments deposit on the inner wall of funnel cover 625, but the piece can move about in the lubricating oil after producing, contact with the gear once more, aggravate the wearing and tearing of gear, consequently, install two magnets 72 on mounting bracket 71, two magnets 72 set up respectively in the both sides of first fixed bolster 66 for all there is magnet 72 in two cabins of sealed oil tank 62, the piece that the gear friction produced is adsorbed by magnet 72 at the first time, make do not contain the piece in the lubricating oil, thereby avoid the piece to mix wearing and tearing the gear once more in the lubricating oil, improve the life of gear.
Referring to fig. 10 and 11, it is shown that: the upper end of each magnet 72 is provided with a third rotating structure 73 for rotating the magnet 72, the third rotating structure 73 includes a rotating block 731, the rotating block 731 is rotatably connected with the mounting frame 71, the lower end of the rotating block 731 is connected with the magnet 72, the upper end of the rotating block 731 is provided with a second connecting block 732, and the upper end of the second connecting block 732 is provided with a rotating blade 733.
When the first rotating structure 63, the second rotating structure 64 and the variable speed transmission structure 68 work in the sealed oil tank 62, lubricating oil in the sealed oil tank 62 is disturbed, non-directional flow occurs in the sealed oil tank 62, the lubricating oil drives the rotating blades 733 to rotate, the rotating blades 733 drive the rotating blocks 731 to rotate, the rotating blocks 731 drive the magnet 72 to rotate, and the magnet 72 can be contacted with all parts of the lubricating oil when rotating, so that more scrap iron is prevented from being adsorbed by the part of the magnet 72, and therefore the efficiency of adsorbing scraps of the magnet 72 is improved.
Referring to fig. 10 and 11, it is shown that: the lower extreme of every magnet 72 all is provided with iron fillings and takes out structure 74, and iron fillings take out structure 74 includes second gland nut 741, and the upper end of second gland nut 741 is provided with annular plate 742, and the internal diameter of annular plate 742 is the same with the external diameter size of magnet 72, is provided with a plurality of connecting rod 743 between annular plate 742 and the second gland nut 741.
The magnet 72 is adsorbed with fragments, when the lubricating oil is replaced, the magnet 72 needs to be taken down, the fragments on the surface of the magnet 72 are cleaned, then the magnet 72 is installed on the installation frame 71, therefore, the scrap iron taking-out structure 74 is arranged, the second sealing nut 741 is rotated, the second sealing nut moves downwards by pulling the annular plate 742 through the plurality of connecting rods 743, the fragments on the surface of the magnet 72 are scraped off and discharged to the outside of the sealing oil tank 62, and accordingly the cleaning of the fragments on the surface of the magnet 72 is achieved without taking down the magnet 72.
Referring to fig. 4, 5 and 12, it is shown that: the upper end of first box 621 has seted up air inlet 6212, and air inlet 6212's upper end is provided with gas filtration 8, and gas filtration 8 includes valve 81, and valve 81 covers the upper end of establishing at air inlet 6212, and the upper end of valve 81 is provided with annular lid 82, and a plurality of bleeder vent 821 has been seted up on the surface of annular lid 82, is provided with filter core 83 in the annular lid 82.
When the lubricating oil is replaced, the air pressure in the sealed oil tank 62 is continuously reduced when the lubricating oil is directly discharged, so that the flow rate of the lubricating oil is reduced, even the discharge is stopped, if the air inlet of the oil filling port 6211 is opened, impurities can be sucked into the oil tank, the air inlet 6212 is formed, the valve 81, the annular cover 82 and the filter element 83 are arranged on the air inlet 6212, the valve 81 is opened, negative pressure is generated in the sealed oil tank 62 when the lubricating oil is discharged, external air is sucked from the air inlet 6212, and the external air is filtered by the filter element 83, so that the air entering the sealed oil tank 62 is cleaner, and impurities in the external air are prevented from adhering to the inner wall of the sealed oil tank 62.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (3)
1. The utility model provides a centrifugal fan with oil bath formula connecting bearing, a serial communication port, including shock attenuation frame (1), the one end of shock attenuation frame (1) is provided with first support frame (2), the upper end of first support frame (2) is provided with casing (3), casing (3) have air intake (31), air outlet (32) and drain (33), the inside of casing (3) is provided with impeller (4), the other end of shock attenuation frame (1) is provided with rotatory actuating mechanism (5) of drive impeller (4), actuating mechanism (5) include actuating motor (51), actuating motor (51) and shock attenuation frame (1) fixed connection, the output of actuating motor (51) is provided with first transmission structure (52), first transmission structure (52) are including action wheel (521), from driving wheel (522), driving belt (523) and belt protection casing (524), the output shaft of action wheel (521) and actuating motor (51) is connected, both ends of driving belt (523) are connected with the transmission of action wheel (521) and driving wheel (522) respectively, be provided with variable speed drive (6) between driving wheel (522) and impeller (4), variable speed drive (6) include second support frame (61) are provided with oil tank (61), one end of the sealed oil tank (62) is provided with a first rotating structure (63), one end of the first rotating structure (63) is connected with a driven wheel (522), the other end of the sealed oil tank (62) is provided with a second rotating structure (64), one end of the second rotating structure (64) is connected with the impeller (4), the inside of the sealed oil tank (62) is provided with a plurality of variable speed transmission structures (68), two ends of the variable speed transmission structures (68) are respectively connected with the first rotating structure (63) and the second rotating structure (64), and the sealed oil tank (62) comprises a first tank body (621) and a second tank body (622); an oil drain port (6221) is formed in the lower end of the second box body (622), a funnel cover body (625) is arranged at the oil drain port (6221), and the large end of the funnel cover body (625) is upwards connected with the oil drain port (6221) in a sealing mode; the hopper cover body (625) is internally provided with a scrap iron adsorption structure (7) for adsorbing scrap iron in lubricating oil, the scrap iron adsorption structure (7) comprises a mounting frame (71), two magnets (72) are symmetrically arranged on the mounting frame (71), the upper end of the first box body (621) is provided with an oil filling port (6211), the two ends of the second box body (622) are respectively provided with a first shaft cover (623) and a second shaft cover (624), the oil filling port (6211) is internally provided with a first sealing nut (65), the second box body (622) is internally provided with a first fixing bracket (66), the first fixing bracket (66) divides a sealing oil tank (62) into two cabins with the same size, the first fixing bracket (66) is inserted with a second fixing bracket (67), the first rotating structure (63) comprises a first rotating shaft (631) and a first gear (632), one end of the first rotating shaft (631) is connected with one side of the first fixing bracket (66) through a bearing, the other end of the first rotating shaft (631) extends out of the sealing oil tank (62), the first gear (632) is sleeved on the first rotating shaft (64) and the other side of the second rotating structure (641) is connected with the first rotating shaft (641) through the first rotating shaft (641), each speed change transmission structure (68) comprises a third gear (681), a fourth gear (682) and a transmission connecting shaft (683), the third gear (681) is in meshed transmission connection with the first gear (632), the fourth gear (682) and the second gear (642) are in meshed transmission connection, the middle part of the transmission connecting shaft (683) passes through the second fixed support (67), two ends of the transmission connecting shaft (683) are respectively connected with the third gear (681) and the fourth gear (682), one end of each speed change transmission structure (68) is provided with a linear movement structure (684), the first gear (632) is as large as the number of teeth and the second gear (642) are as large as the number of teeth, the third gear (681) in each speed change transmission structure (68) is as the number of teeth, the fourth gear (682) in each speed change transmission structure (68) is as large as the number of teeth, the width of each third gear (681) is as large as the third gear (682), the width of each third gear (731) is larger than the width of the first gear (632), the width of each magnet (731) is as large as the width of each magnet (73) is as large as the width of the fourth gear (72) is, each magnet (72) is arranged on the rotation structure (72), the rotating block (731) is rotationally connected with the mounting frame (71), the lower extreme of rotating block (731) is connected with magnet (72), the upper end of rotating block (731) is provided with second connecting block (732), the upper end of second connecting block (732) is provided with rotating vane (733), straight line moving structure (684) include sharp driver (6841), sharp driver (6841) set up on second shaft cover (624), the output shaft of sharp driver (6841) stretches into in sealed oil tank (62), and the output axle head of sharp driver (6841) is provided with first connecting block (6842), the one end and the sharp driver (6841) of first connecting block (6842) are connected, the other end of first connecting block (6842) is provided with connecting bolt (6843), the one end and the transmission connecting axle (683) fixed connection of connecting bolt (6843), the other end and the first connecting block (6842) of connecting bolt (6843) rotate and are connected.
2. Centrifugal fan with oil bath formula connecting bearing according to claim 1, characterized in that the lower extreme of every magnet (72) all is provided with iron fillings and takes out structure (74), and iron fillings take out structure (74) include second gland nut (741), and the upper end of second gland nut (741) is provided with annular plate (742), and the internal diameter of annular plate (742) is the same with the external diameter size of magnet (72), is provided with a plurality of connecting rod (743) between annular plate (742) and second gland nut (741).
3. The centrifugal ventilator with the oil bath type connecting bearing according to claim 2, wherein the air inlet (6212) is formed in the upper end of the first box body (621), the air filtering structure (8) is arranged at the upper end of the air inlet (6212), the air filtering structure (8) comprises a valve (81), the valve (81) is covered at the upper end of the air inlet (6212), the upper end of the valve (81) is provided with an annular cover (82), a plurality of air holes (821) are formed in the surface of the annular cover (82), and the filter element (83) is arranged in the annular cover (82).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311135683.7A CN117072469B (en) | 2023-09-05 | 2023-09-05 | Centrifugal ventilator with oil bath type connecting bearing and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311135683.7A CN117072469B (en) | 2023-09-05 | 2023-09-05 | Centrifugal ventilator with oil bath type connecting bearing and method |
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| CN117072469B true CN117072469B (en) | 2024-03-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210265203U (en) * | 2019-07-04 | 2020-04-07 | 绍兴上虞英达风机有限公司 | Centrifugal fire-fighting smoke exhaust fan |
| CN211009201U (en) * | 2019-11-04 | 2020-07-14 | 江苏恒康机电有限公司 | Low-noise centrifugal ventilator |
| CN215058283U (en) * | 2020-11-16 | 2021-12-07 | 湖北工程学院 | Single-power-driven three-stage counter-rotating axial-flow fan and ventilation system |
| CN114233824A (en) * | 2022-01-07 | 2022-03-25 | 黄志扬 | Electromechanical integrated planetary speed regulating device with full-range speed regulation |
| CN217080866U (en) * | 2022-04-02 | 2022-07-29 | 温岭兴应风机股份有限公司 | Centrifugal blower |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11698122B2 (en) * | 2020-10-22 | 2023-07-11 | Deere & Company | Variable speed and reversible dual path fan drive system |
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2023
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210265203U (en) * | 2019-07-04 | 2020-04-07 | 绍兴上虞英达风机有限公司 | Centrifugal fire-fighting smoke exhaust fan |
| CN211009201U (en) * | 2019-11-04 | 2020-07-14 | 江苏恒康机电有限公司 | Low-noise centrifugal ventilator |
| CN215058283U (en) * | 2020-11-16 | 2021-12-07 | 湖北工程学院 | Single-power-driven three-stage counter-rotating axial-flow fan and ventilation system |
| CN114233824A (en) * | 2022-01-07 | 2022-03-25 | 黄志扬 | Electromechanical integrated planetary speed regulating device with full-range speed regulation |
| CN217080866U (en) * | 2022-04-02 | 2022-07-29 | 温岭兴应风机股份有限公司 | Centrifugal blower |
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| CN117072469A (en) | 2023-11-17 |
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