Transmission structure of dust removal fan
By designing a combination structure of the linkage shaft and lock sleeve in the dust collector, the axial squirming problem of the fan blades when rotating at high speed is solved, and more stable and efficient equipment operation is achieved.
Patent Information
- Application Number
- CN202422188534.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-06
AI Technical Summary
When installing the high-efficiency dust collector, the fan blades are prone to axial squirting due to the lack of auxiliary support and rotational structure, which affects the stability and operating efficiency of the equipment.
A dust removal fan transmission structure is designed, using a combination of a linkage shaft and a locking sleeve. The bumps of the linkage shaft are fitted correspondingly with the limit hole of the impeller, and the linkage shaft is fixed through the locking sleeve to ensure that the impeller and the linkage shaft rotate simultaneously and reduce the movement phenomenon.
It effectively reduces the tampering of the linkage shaft during long-term operation. Even if the lock sleeve is installed loosely, the impeller will not break away from the outside of the linkage shaft, improving the stability and protection effect of the equipment.
Smart Images
Figure CN223035307U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust removal fans, in particular to a transmission structure of a dust removal fan. Background Technique
[0002] At present, when installing an efficient dust removal fan, the fan blades and the motor are mostly placed in the cylinder body. However, due to the lack of an auxiliary support and rotation structure at the end of the fan blades of the fan, when the fan blades rotate at high speed, the fan blades are prone to axial movement. For this reason, a transmission structure of a dust removal fan is proposed. Content of the Utility Model
[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a transmission structure of a dust removal fan.
[0004] To achieve the above purpose, the utility model adopts the following technical scheme. It includes a fan housing, a support base with an I-shaped structure is installed at the bottom of the fan housing, an installation chuck is fixedly installed inside the fan housing, equidistantly arranged air-dispersing holes are opened inside the installation chuck, an installation cavity is arranged at the center of one side wall surface of the installation chuck corresponding to the fan housing, a driving motor is inserted and fixedly installed inside the installation cavity, a linkage shaft is connected and installed on the output shaft of the driving motor, two symmetrically positioned convex blocks are arranged on the surface of the linkage shaft, two corresponding docking chucks are arranged on the inner wall surface of the front side of the fan housing, a locking groove is arranged on the inner wall surface of the docking chuck, and threads are arranged inside the locking groove for inserting bolts. A disassembly and assembly cover is clamped between the two corresponding docking chucks, a docking block corresponding to the internal size of the docking chuck is arranged on the surface of the disassembly and assembly cover, and a hole groove for limiting is arranged inside the docking block.
[0005] Further, an impeller is sleeved outside the linkage shaft. A limit card hole is arranged inside the mounting seat part of the impeller, and the internal size of the limit card hole corresponds to the external size of the linkage shaft. The impeller is synchronously installed outside the linkage shaft through the limit card hole.
[0006] Further, the front end of the linkage shaft is a threaded column structure, a locking sleeve is sleeved on the threaded column at the front end of the linkage shaft, and the impeller is locked by the locking sleeve after being sleeved outside the linkage shaft.
[0007] Further, four sector-shaped through holes with the same size are opened inside the disassembly and assembly cover, and a filter screen for dust prevention is laid inside the disassembly and assembly cover.
[0008] Further, an access cavity is arranged on one side of the disassembly and assembly cover corresponding to the inside of the fan housing. The front end size of the locking sleeve corresponds to the internal size of the access cavity. After the disassembly and assembly cover is clamped between the two docking chucks, the front end of the linkage shaft is inserted into the hole opened at the bottom of the access cavity.
[0009] Beneficial effects
[0010] The utility model provides a dust removal fan drive structure, which has the following beneficial effects:
[0011] 1. A dust removal fan drive structure is provided with a linkage shaft for synchronization. The linkage shaft is fixedly installed on the output shaft of the drive motor. After the installation of the linkage shaft, the overall length extends to the outside of the fan housing. Since there are two corresponding convex blocks on the surface of the linkage shaft, when the impeller is sleeved on the outside of the linkage shaft, the limit card holes inside the impeller will completely correspond and fit with the convex blocks on the surface of the linkage shaft. Then, the locking sleeve is rotatably installed at the front end of the linkage shaft to complete the fixation, so that the entire impeller rotates synchronously with the linkage shaft. Then, the disassembly and installation guard is buckled between the two docking slots. The front end of the linkage shaft is inserted into the through hole reserved inside the access cavity, and the locking sleeve enters the inside of the access cavity for limitation. When the device operates for a long time, the situation of the linkage shaft moving axially is greatly reduced. Even if the installation of the locking sleeve becomes loose, the entire impeller will not break away from the outside of the linkage shaft during rotation, which plays a good protective effect.
[0012] 2. A dust removal fan drive structure is provided with a disassembly and installation guard that is convenient for disassembly and installation. The surface of the disassembly and installation guard is provided with two docking blocks corresponding to the inside of the docking slots in size. After the components inside the fan housing are installed, the disassembly and installation guard is clamped between the two docking slots. Then, bolts are used to pass through the slots inside the docking blocks and insert into the locking slots at the bottom of the docking slots inside for rotation and locking to fix the entire disassembly and installation guard. The filter screen laid inside the disassembly and installation guard can play a certain dust-proof role during the operation of the entire device. Even if the installation of the locking sleeve becomes loose after the locking sleeve is docked into the inside of the access cavity, the locking sleeve will not break away from the outside of the linkage shaft and can keep the impeller rotating normally. When the filter screen inside the disassembly and installation guard filters too much dust and becomes blocked, the entire disassembly and installation guard can also be removed more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the implementation conditions of the utility model. Therefore, they do not have substantial technical significance.
[0014] Figure 1 is a schematic diagram of the overall structure;
[0015] Figure 2 is a schematic diagram of the internal structure of the fan housing;
[0016] Figure 3 is a schematic diagram of the disassembly and installation guard structure.
[0017] Legend description:
[0018] 1. Fan housing; 2. Support base; 3. Disassembly and installation cover; 4. Installation chuck; 5. Installation cavity; 6. Driving motor; 7. Linkage shaft; 8. Impeller; 9. Limit card hole; 10. Locking sleeve; 11. Docking card slot; 12. Locking groove; 13. Docking block; 14. Access cavity. Detailed implementation mode
[0019] A dust removal fan transmission structure, as Figures 1 to 3 shown, includes a fan housing 1. An I-shaped support base 2 is installed at the bottom of the fan housing 1. An installation chuck 4 is fixedly installed inside the fan housing 1. Equally spaced ventilation holes are provided inside the installation chuck 4. An installation cavity 5 is provided at the center of the side wall of the installation chuck 4 corresponding to the fan housing 1. A driving motor 6 is inserted and fixedly installed inside the installation cavity 5. A linkage shaft 7 is connected to the output shaft of the driving motor 6. Two symmetrically positioned convex blocks are provided on the surface of the linkage shaft 7. Two correspondingly positioned docking card slots 11 are provided on the inner wall surface of the front side of the fan housing 1. A locking groove 12 is provided on the inner wall surface of the docking card slot 11. Threads are provided inside the locking groove 12 for inserting bolts. A disassembly and installation cover 3 is clamped between the two corresponding docking card slots 11. Docking blocks 13 corresponding to the size inside the docking card slots 11 are provided on the surface of the disassembly and installation cover 3. A hole groove for limiting is provided inside the docking block 13.
[0020] A locking sleeve 10 is sleeved outside the linkage shaft 7. A limit card hole 9 is provided inside the mounting seat part of the impeller 8. The inner size of the limit card hole 9 corresponds to the outer size of the linkage shaft 7. After the impeller 8 is synchronously installed outside the linkage shaft 7 through the limit card hole 9, the impeller 8 will rotate inside the fan housing 1 to generate wind pressure when the linkage shaft 7 rotates.
[0021] The front end of the linkage shaft 7 is a threaded column structure. A locking sleeve 10 is sleeved on the threaded column at the front end of the linkage shaft 7. After the impeller 8 is sleeved outside the linkage shaft 7, it is locked by the locking sleeve 10. An access cavity 14 is provided on the side of the disassembly and installation cover 3 corresponding to the inside of the fan housing 1. The front end size of the locking sleeve 10 corresponds to the inner size of the access cavity 14. After the disassembly and installation cover 3 is clamped between the two docking card slots 11, the front end of the linkage shaft 7 is inserted into the hole provided at the bottom surface of the access cavity 14, and at the same time the entire locking sleeve 10 is clamped into the access cavity 14. Even if the locking sleeve 10 loosens during long-term sleeving, the impeller 8 will not break away from the outside of the linkage shaft 7 under the restriction of the access cavity 14.
[0022] Four fan-shaped through holes of the same size are provided inside the disassembly and installation cover 3. A dust filter for dust prevention is laid inside the disassembly and installation cover 3. The dust filter inside the disassembly and installation cover 3 reduces the accumulation of external dust entering the fan housing 1 during the operation of the device, playing a certain dust prevention effect.
[0023] Working principle of the utility model:
[0024] By providing a linkage shaft 7 for synchronization, the linkage shaft 7 is fixedly installed on the output shaft of the driving motor 6. After the installation of the linkage shaft 7, the overall length extends to the outside of the fan housing 1. Since there are two convex blocks corresponding to each other in position on the surface of the linkage shaft 7, when the impeller 8 is sleeved on the outside of the linkage shaft 7, the limit clamping holes 9 inside the impeller 8 will completely correspond and fit with the convex blocks on the surface of the linkage shaft 7. Then, the locking sleeve 10 is rotatably installed at the front end of the linkage shaft 7 to complete the fixation, so that the entire impeller 8 rotates synchronously with the linkage shaft 7. Then, the disassembly and installation guard 3 is buckled between the two docking slots 11. The front end of the linkage shaft 7 is inserted into the through hole reserved inside the access cavity 14, and the locking sleeve 10 enters the inside of the access cavity 14 for limitation. When the device operates for a long time, the situation of the linkage shaft 7 moving axially is greatly reduced. Even if the installation of the locking sleeve 10 becomes loose, the entire impeller 8 will not break away from the outside of the linkage shaft 7 during rotation, achieving a good protection effect.
[0025] By providing a disassembly and installation guard 3 that is convenient for disassembly and installation, there are two docking blocks 13 on the surface of the disassembly and installation guard 3 corresponding to the inside of the docking slots 11 in size. After the components inside the fan housing 1 are installed, the disassembly and installation guard 3 is clamped between the two docking slots 11. Then, bolts are used to pass through the slots inside the docking blocks 13 and insert into the locking slots 12 at the bottom surface of the docking slots 11 and rotate to lock, so that the entire disassembly and installation guard 3 can be fixed. The filter screen laid inside the disassembly and installation guard 3 can play a certain role in dust prevention during the operation of the entire device. Even if the installation of the locking sleeve 10 becomes loose after the locking sleeve 10 is docked into the inside of the access cavity 14, the locking sleeve 10 will not break away from the outside of the linkage shaft 7, and the normal rotation of the impeller 8 can be maintained. When the filter screen inside the disassembly and installation guard 3 is blocked by too much dust, the entire disassembly and installation guard 3 can also be removed more conveniently.
[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art of this industry should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.
Claims
1. A dust removal fan transmission structure, comprising a fan housing (1), a support base (2) of an I-shaped structure is installed at the bottom of the fan housing (1), and a mounting chuck (4) is fixedly installed inside the fan housing (1), characterized in that: The interior of the mounting chuck (4) is provided with air vents arranged at equal intervals. The center of a wall surface of one side of the mounting chuck (4) corresponding to the fan housing (1) is provided with a mounting cavity (5). A driving motor (6) is inserted and fixedly mounted inside the mounting cavity (5). A linkage shaft (7) is connected and mounted on the output shaft of the driving motor (6). The surface of the linkage shaft (7) is provided with two mutually symmetrical protrusions. The front inner wall surface of the fan housing (1) is provided with two mutually corresponding docking slots (11). The inner wall surface of the docking slot (11) is provided with a locking slot (12). The locking slot (12) is provided with a thread for inserting a bolt. A disassembly shield (3) is inserted and mounted between the two corresponding docking slots (11). A docking block (13) corresponding to the size of the inner part of the docking slot (11) is provided on the surface of the disassembly shield (3). A hole groove for limiting is provided inside the docking block (13).
2. A dust removal fan transmission structure according to claim 1, characterized in that: An impeller (8) is mounted on the outside of the linkage shaft (7) in a sleeve-jointed manner. A limit clamping hole (9) is provided inside the mounting seat of the impeller (8). The internal size of the limit clamping hole (9) corresponds to the external size of the linkage shaft (7). The impeller (8) is synchronously mounted on the outside of the linkage shaft (7) through the limit clamping hole (9).
3. The dust removal fan transmission structure according to claim 1 is characterized in that: The front end of the linkage shaft (7) is a threaded column structure, and a locking sleeve (10) is sleeved on the front end threaded column of the linkage shaft (7). The impeller (8) is sleeved on the outside of the linkage shaft (7) and locked by the locking sleeve (10).
4. The dust removal fan transmission structure according to claim 1, characterized in that: Four fan-shaped through holes of the same size are provided inside the disassembly and assembly shield (3), and a filter screen for dust prevention is laid inside the disassembly and assembly shield (3).
5. The dust removal fan transmission structure according to claim 1, characterized in that: The disassembly and assembly shield (3) is provided with an access cavity (14) on one side corresponding to the interior of the fan housing (1); the size of the front end of the locking sleeve (10) corresponds to the internal size of the access cavity (14); after the disassembly and assembly shield (3) is clamped between the two docking slots (11), the front end of the linkage shaft (7) is inserted into the hole provided on the bottom surface of the access cavity (14).