CN116557313A - Axial flow fan - Google Patents
Axial flow fan Download PDFInfo
- Publication number
- CN116557313A CN116557313A CN202310760871.2A CN202310760871A CN116557313A CN 116557313 A CN116557313 A CN 116557313A CN 202310760871 A CN202310760871 A CN 202310760871A CN 116557313 A CN116557313 A CN 116557313A
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- Prior art keywords
- rod
- cooling
- compensation
- fan
- axial flow
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001816 cooling Methods 0.000 claims abstract description 62
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- 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
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application provides an axial fan, including support and fan unit, wherein, the fan unit includes fan main part and cooling compensation portion, and the cooling compensation portion is located in the direction of the output air current of fan main part, and the cooling compensation portion is used for carrying out the cooling compensation to the heat treatment spare that receives fan main part output air current cooling. The first mounting bracket of cooling compensation portion, pivot, measuring rod, compensating rod utilize a plurality of infrared temperature measuring heads on the measuring rod to carry out real-time supervision to work piece surface temperature to cooperate with compensating rod output low temperature air to provide the cooling effect to the higher region of temperature. The axial flow fan that this application provided can compensate the region that the cooling is slow on the work piece voluntarily, improves this department cooling effect, and then makes the work piece realize even cooling, improves the thermal treatment effect of work piece.
Description
Technical Field
The invention relates to the technical field of fans, in particular to an axial flow fan.
Background
In order to improve the mechanical strength of the conventional workpiece (such as a titanium alloy piece), heat treatment is usually performed, and the workpiece needs to be cooled after the heat treatment, wherein the cooling mode includes air cooling, furnace cooling, water quenching, oil quenching, furnace cooling and the like. The workpiece is cooled by an axial flow fan after being heated, and the workpiece is easy to be cooled in a local area (such as a thicker position) in the air cooling and cooling process, so that the internal crystal structure of the area with low temperature is inconsistent with the crystal structures of other areas, and the effect of heat treatment is easy to be influenced. And traditional axial fan only can carry the air current and cool down the cooling to the work piece is whole, can't the targeted improvement to the slower regional cooling effect of local cooling, and then lead to the effect of axial fan air cooling not good.
Disclosure of Invention
The invention aims to provide an axial flow fan, which is used for solving the technical problem that the heat treatment effect of a workpiece is poor after the air cooling of the axial flow fan because the local cooling effect cannot be adjusted according to the cooling condition of the workpiece when the traditional axial flow fan is used for air cooling.
In order to achieve the above purpose, the invention adopts the following technical scheme: there is provided an axial flow fan including:
the bracket is of a frame structure;
the fan unit is arranged on the bracket and comprises a fan main body part and a cooling compensation part, wherein the cooling compensation part is positioned in the direction of the output airflow of the fan main body part and is used for cooling and compensating a heat treatment piece cooled by the output airflow of the fan main body part;
the cooling compensation part comprises a first mounting frame, a rotating shaft, a detection rod and a compensation rod, wherein the first mounting frame is fixed on the support, the rotating shaft is rotatably arranged on the first mounting frame, the detection rod and the compensation rod are both arranged on the rotating shaft, a plurality of infrared temperature measuring heads are arranged on the detection rod, a cavity is formed in the compensation rod, low-temperature cold air is introduced into the cavity through a cold air pipe, electronic nozzles in one-to-one correspondence with the infrared temperature measuring heads are arranged on the compensation rod, the electronic nozzles are communicated with the cavities in the compensation rod, the infrared temperature measuring heads are electrically connected with the electronic nozzles, and the infrared temperature measuring heads control the electronic nozzles to be opened and closed.
In one embodiment, the cross section of the detection rod and the compensation rod is streamline.
In one embodiment, the cooling compensation part further comprises an angle adjusting mechanism, the angle adjusting mechanism is arranged on the rotating shaft, the angle adjusting mechanism is electrically connected with the infrared temperature measuring head, and the angle adjusting mechanism is used for adjusting the compensation rod so as to adjust the size of a windward side of the compensation rod.
In one embodiment, the angle adjusting mechanism comprises an adjusting motor, the adjusting motor is arranged on the rotating shaft, external teeth are arranged on the outer surface of the root of the compensating rod, the adjusting motor is connected with the external teeth of the compensating rod in a gear tooth meshing mode, and the adjusting motor is electrically connected with the infrared temperature measuring head.
In one embodiment, the fan body portion includes:
the shell is fixed on the bracket and is cylindrical;
the second installation frame is fixed on the shell;
the main motor is fixed on the second mounting frame;
and the fan blades are fixed on the motor shaft of the main motor.
In one embodiment, the stand includes a main frame and a leg disposed at a bottom of the main frame.
In one embodiment, a connecting rib plate is fixed on the inner side of the corner of the main frame, one side of the connecting rib plate is provided with an arc-shaped edge matched with the shell, and the connecting rib plate is fixedly connected with the shell.
In one embodiment, the front and rear sides of the housing are provided with safety shields.
The above-mentioned one or more technical solutions in the embodiments of the present invention at least have the following technical effects or advantages:
according to the axial flow fan provided by the embodiment of the invention, the fan unit is utilized to convey air flow to cool a workpiece, the cooling compensation part is arranged in the direction of the output end of the fan unit, the rotating shaft in the cooling compensation part is rotatably arranged on the support by the first mounting frame, the detection rod and the compensation rod are respectively connected to the rotating shaft, under the action of wind power output by the fan unit, the detection rod and the compensation rod are enabled to rotate under the action of wind power, the infrared temperature measuring head arranged on the detection rod can monitor the surface temperature of the workpiece in the front cooling process in real time, and as the detection rod is in a rotating state, the infrared temperature measuring head on the detection rod can rotate around the rotating shaft to form a monitoring area of a circular surface to cover the workpiece, so that the real-time monitoring of the workpiece in air cooling is realized, and the compensation rod also arranged on the rotating shaft rotates along with the detection rod.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of an axial flow fan according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an axial flow fan according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a single fan unit according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an angle adjusting mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic illustration of the compensating rod before adjustment and in the direction of airflow;
FIG. 6 is a schematic illustration of the direction of flow of the air flow after adjustment of the compensator rod.
Wherein, each reference sign is as follows:
1. a bracket; 2. a blower unit; 3. a low temperature cold air pipe; 4. rotating the connecting device; 11. a main frame; 12. a support leg; 13. connecting rib plates; 14. a safety shield; 21. a fan main body part; 22. a cooling compensation part; 211. a housing; 212. a second mounting frame; 213. a main motor; 214. a fan blade; 221. a first mounting frame; 222. a rotating shaft; 223. a detection rod; 224. a compensation rod; 225. an angle adjusting mechanism; 2241. a cavity; 2242. an electronic nozzle; 2251. adjusting a motor; 2252. external teeth.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, an axial flow fan according to an embodiment of the present application includes a bracket 1 and at least one fan unit 2. Wherein the bracket 1 is in a frame structure. The fan unit 2 is arranged on the support 1, the fan unit 2 comprises a fan main body part 21 and a cooling compensation part 22, the cooling compensation part 22 is positioned in the direction of the output airflow of the fan main body part 21, and the cooling compensation part 22 is used for cooling and compensating a heat treatment piece cooled by the output airflow of the fan main body part 21. The cooling compensation part 22 comprises a first mounting frame 221, a rotating shaft 222, a detection rod 223 and a compensation rod 224, wherein the first mounting frame 221 is fixed on the support 1, the rotating shaft 222 is rotatably arranged on the first mounting frame 221, the detection rod 223 and the compensation rod 224 are both arranged on the rotating shaft 222, a plurality of infrared temperature measuring heads are arranged on the detection rod 223, a cavity 2241 is arranged in the compensation rod 224, low-temperature cold air is introduced into the cavity 2241 of the compensation rod 224 through a cold air pipe, electronic nozzles 2242 in one-to-one correspondence with the infrared temperature measuring heads are arranged on the compensation rod 224, the electronic nozzles 2242 are communicated with the cavity 2241 in the compensation rod 224, the infrared temperature measuring heads are electrically connected with the electronic nozzles 2242, and the infrared temperature measuring heads control the opening and closing of the electronic nozzles 2242.
The axial flow fan provided by the embodiment cools the workpiece by using the air flow conveyed by the fan unit 2, and sets the cooling compensation part 22 at the output end direction of the fan unit 2, the rotating shaft 222 in the cooling compensation part 22 is rotatably arranged on the bracket 1 by using the first mounting frame 221, and the detecting rod 223 and the compensating rod 224 are respectively connected to the rotating shaft 222, under the wind force output by the fan unit 2, the detecting rod 223 and the compensating rod 224 are rotated under the wind force, the infrared temperature measuring head arranged on the detecting rod 223 can monitor the surface temperature of the workpiece in the front cooling process in real time, and the infrared temperature measuring head on the detecting rod 223 can rotate around the rotating shaft 222 due to the rotating state of the detecting rod 223, so as to form a circular monitoring area to cover the workpiece, thereby realizing real-time monitoring of the workpiece in air cooling, and the compensating rod 224 also arranged on the rotating shaft 222 rotates along with the detecting rod 223, when the infrared temperature measuring head on the detecting rod detects that the temperature of a certain area of the workpiece is higher than that of other positions (the temperature reducing effect is poor and heat is accumulated), the infrared temperature measuring head controls the electronic nozzle 2242 corresponding to the compensating rod 224 to be opened, so that low-temperature cold air in the compensating rod 224 is output outwards, and after the low-temperature cold air is output, the air flow output by the fan unit 2 moves linearly along the axial direction of the fan, so that the low-temperature cold air can flow towards the area with higher temperature detected by the infrared temperature measuring head under the carrying of the air flow until the low-temperature cold air contacts the area and the temperature reducing effect of the area is improved, so that the area and other areas of the workpiece are synchronously cooled, and the heat treatment effect of the workpiece is improved.
As shown in fig. 3, the detecting rod 223 may be disposed at the front end of the compensating rod 224 such that there is a certain angle difference between the compensating rod 224 and the detecting rod 223, and since there is also a tangential velocity along the rotation direction of the compensating rod 224 (the rotation speed of the compensating rod 224 is slow, so that the tangential velocity thereof is slow) when the low-temperature cool air is released from the electronic nozzle 2242 of the compensating rod 224, there is also a tangential velocity of the low-temperature cool air while moving along the output air flow direction of the fan main body part 21, so that the compensating rod 224 is disposed at the rear of the movement direction of the detecting rod 223 in order to neutralize the tangential velocity, and the relationship between the corresponding electronic nozzle 2242 and the infrared temperature measuring head is such that the infrared temperature measuring head is located in the tangential direction of the circumferential movement of the electronic nozzle 2242. Through setting up the detection pole 223 in the front end of compensation pole 224 to make there is certain angle difference between compensation pole 224 and the detection pole 223, and then make the low temperature air that electronic nozzle 2242 on the compensation pole 224 export can more accurate motion to the infrared temperature measuring head so on the unusual region of cooling that detects (the higher region of temperature), improve the compensation precision of cooling compensation portion 22.
Under the condition that the air resistance is not considered, assuming that the angle between the compensating rod 224 and the detecting rod 223 is alpha, the airflow velocity output by the fan main body part 21 is v, the distance between the cooling compensating part 22 and the workpiece is L, the rotating speed between the compensating rod 224 and the detecting rod 223 is w, the distance between the electronic nozzle 2242 and the rotating shaft 222 is R, the tangential velocity of low-temperature cold air is wR, the distance between the infrared temperature measuring head and the rotating shaft 222 is R, the distance x between the electronic nozzle 2242 and the infrared temperature measuring head isThat is, r·sinα, the time t=l/v required for the air flow to move from the temperature decrease compensation portion 22 to the workpiece surface, and therefore, (L/v) ·wr=r·sinα, and therefore sinα= wRL/(r·v) can be obtained, and therefore, it is known that =>Since the airflow velocity v is proportional to the rotation speed w of the compensating rod 224 and the detecting rod 223 (the faster the airflow velocity is, the faster the rotation speed of the compensating rod 224 and the detecting rod 223 is), the value of w.L/v is only related to L, so that when the distance between the cooling compensating part 22 and the workpiece is fixed, the speed of the cooling compensating part can be adjusted according to>The alpha value of the angle between the compensation rod 224 and the detection rod 223 is accurately calculated.
As shown in fig. 5, in one embodiment, the cross-sections of the sense rod 223 and the compensator rod 224 are streamlined. Specifically, the cross sections of the detection rod 223 and the compensation rod 224 may be triangular. By arranging the cross sections of the detection rod 223 and the compensation rod 224 into a streamline structure, the turbulence effect of the detection rod 223 and the compensation rod 224 on the air flow output by the fan main body part 21 is reduced, so that the air flow is convenient for cooling the workpiece.
In one embodiment, the cooling compensation portion 22 further includes an angle adjustment mechanism 225, the angle adjustment mechanism 225 is disposed on the rotating shaft 222, the angle adjustment mechanism 225 is electrically connected to the infrared temperature measuring head, and the angle adjustment mechanism 225 is used for adjusting the compensation rod 224 to adjust the size of the windward side of the compensation rod 224. Through adopting angle adjustment mechanism 225 to adjust the windward side size of compensating rod 224, when detecting rod 223 does not detect that there is the unusual region of cooling on the work piece, angle adjustment mechanism 225 adjusts compensating rod 224 angle for compensating rod 224's windward side increases (state as shown in fig. 6), make compensating rod 224 receive the wind-force bigger, and then improve compensating rod 224 and detecting rod 223's rotational speed, make cooling compensation portion 22 be in the state of going round, the rotational speed of detecting rod 223 under this state is faster, make detecting rod 223 accomplish the time that once detects (rotate round) shorter, be favorable to finding the unusual region of cooling (the higher region of temperature fast). When the infrared temperature measuring head on the detecting rod 223 finds the abnormal cooling area, the angle adjusting mechanism 225 adjusts the angle of the compensating rod 224 at this time, so that the windward side of the compensating rod 224 is lowered, the cooling compensating part 22 is in a compensating state, and the rotating speed of the compensating rod 224 in this state is slower, so that the low-temperature cold air output by the electronic nozzle 2242 on the compensating rod 224 can more accurately flow to the abnormal cooling area along with the airflow. By providing the angle adjusting mechanism 225, the windward area of the compensating rod 224 is adjusted according to different conditions by the angle adjusting mechanism 225. And further improves the compensation accuracy and timeliness of the cooling compensation section 22.
As shown in fig. 4, in one embodiment, the angle adjusting mechanism 225 includes an adjusting motor 2251, the adjusting motor 2251 is disposed on the rotating shaft 222, an external tooth 2252 is disposed on an outer surface of a root portion of the compensating rod 224, the adjusting motor 2251 is connected to the external tooth 2252 of the compensating rod 224 by way of gear tooth engagement, and the adjusting motor 2251 is electrically connected to the infrared temperature measuring head. When the adjusting motor 2251 is operated, the compensating rod 224 can be driven to rotate, so as to adjust the angle of the compensating rod 224, and further adjust the size of the windward side of the compensating rod 224.
In addition, the angle adjusting mechanism 225 may also be composed of a cylinder and a connecting rod, the cylinder may be hinged and fixed on the rotating shaft 222, the end of the piston rod of the cylinder is hinged with the connecting rod, the other end of the connecting rod is hinged on the compensating rod 224, and when the piston rod of the cylinder moves, the compensating rod 224 can be rotated to adjust the size of the windward side of the compensating rod 224.
In one embodiment, the fan body 21 includes a housing 211, fan blades 214, a main motor 213, and a second mount 212. Wherein, the outer shell 211 is fixed on the bracket 1, and the outer shell 211 is cylindrical; the second mounting frame 212 is fixed on the housing 211; the main motor 213 is fixed to the second mounting bracket 212; the fan blades 214 are fixed to the motor shaft of the main motor 213. When the fan main body 21 is operated, the fan blades 214 are driven to rotate by the main motor 213, and an air flow is generated.
In one embodiment, the stand 1 includes a main frame 11 and legs 12 provided at the bottom of the main frame 11.
As shown in fig. 1, in one embodiment, a connecting rib 13 is fixed on the inner side of the corner of the main frame 11, one side of the connecting rib 13 is provided with an arc edge matched with the housing 211, and the connecting rib 13 is fixedly connected with the housing 211. By providing the connecting rib plates 13 inside the corners of the main frame 11, the stability of the main frame 11 is improved by the connecting rib plates 13 (the connecting rib plates 13 function as reinforcing ribs). In addition, the connecting rib 13 is provided with an arc edge at one side and is in fit and connection with the housing 211 of the fan body (can be connected in a welding manner), so that the fan body 21 can be more firmly mounted on the main frame 11. And further improves the stability of the axial flow fan during the whole work.
In one embodiment, the front and rear sides of the housing 211 are provided with safety shields 14. The safety shield 14 is a porous mesh screen structure, and can prevent sundries or personnel from entering the rotating area of the fan unit 2 by mistake, so that the working safety of the axial flow fan is improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. An axial flow fan, characterized in that the axial flow fan comprises:
the bracket is of a frame structure;
the fan unit is arranged on the bracket and comprises a fan main body part and a cooling compensation part, wherein the cooling compensation part is positioned in the direction of the output airflow of the fan main body part and is used for cooling and compensating a heat treatment piece cooled by the output airflow of the fan main body part;
the cooling compensation part comprises a first mounting frame, a rotating shaft, a detection rod and a compensation rod, wherein the first mounting frame is fixed on the support, the rotating shaft is rotatably arranged on the first mounting frame, the detection rod and the compensation rod are both arranged on the rotating shaft, a plurality of infrared temperature measuring heads are arranged on the detection rod, a cavity is formed in the compensation rod, low-temperature cold air is introduced into the cavity through a cold air pipe, electronic nozzles in one-to-one correspondence with the infrared temperature measuring heads are arranged on the compensation rod, the electronic nozzles are communicated with the cavities in the compensation rod, the infrared temperature measuring heads are electrically connected with the electronic nozzles, and the infrared temperature measuring heads control the electronic nozzles to be opened and closed.
2. An axial flow fan as defined in claim 1, wherein:
the cross sections of the detection rod and the compensation rod are streamline.
3. An axial flow fan as defined in claim 1, wherein:
the cooling compensation part further comprises an angle adjusting mechanism, the angle adjusting mechanism is arranged on the rotating shaft and is electrically connected with the infrared temperature measuring head, and the angle adjusting mechanism is used for adjusting the compensation rod so as to adjust the size of the windward side of the compensation rod.
4. An axial flow fan according to claim 3, wherein:
the angle adjusting mechanism comprises an adjusting motor, the adjusting motor is arranged on the rotating shaft, external teeth are arranged on the outer surface of the root of the compensation rod, the adjusting motor is connected with the external teeth of the compensation rod in a gear tooth meshing mode, and the adjusting motor is electrically connected with the infrared temperature measuring head.
5. The axial flow fan according to claim 1, wherein the fan main body portion includes:
the shell is fixed on the bracket and is cylindrical;
the second installation frame is fixed on the shell;
the main motor is fixed on the second mounting frame;
and the fan blades are fixed on the motor shaft of the main motor.
6. An axial flow fan as defined in claim 5, wherein:
the support comprises a main frame and support legs arranged at the bottom of the main frame.
7. The axial flow fan according to claim 6, wherein:
the connecting rib plate is fixed on the inner side of the corner of the main frame, one side of the connecting rib plate is provided with an arc-shaped edge matched with the shell, and the connecting rib plate is fixedly connected with the shell.
8. An axial flow fan as defined in claim 5, wherein:
the front side and the rear side of the shell are provided with safety shields.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310760871.2A CN116557313A (en) | 2023-06-26 | 2023-06-26 | Axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310760871.2A CN116557313A (en) | 2023-06-26 | 2023-06-26 | Axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116557313A true CN116557313A (en) | 2023-08-08 |
Family
ID=87498453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310760871.2A Pending CN116557313A (en) | 2023-06-26 | 2023-06-26 | Axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116557313A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288916A (en) * | 2023-11-24 | 2023-12-26 | 四川兆雪科技有限公司 | High-precision detection device and method for online detection of natural gas odorizing agent concentration |
-
2023
- 2023-06-26 CN CN202310760871.2A patent/CN116557313A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288916A (en) * | 2023-11-24 | 2023-12-26 | 四川兆雪科技有限公司 | High-precision detection device and method for online detection of natural gas odorizing agent concentration |
| CN117288916B (en) * | 2023-11-24 | 2024-01-26 | 四川兆雪科技有限公司 | High-precision detection device and method for online detection of natural gas odorizing agent concentration |
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