CN219733727U - Aluminum blade external adjusting mechanism for axial flow fan - Google Patents
Aluminum blade external adjusting mechanism for axial flow fan Download PDFInfo
- Publication number
- CN219733727U CN219733727U CN202321373475.6U CN202321373475U CN219733727U CN 219733727 U CN219733727 U CN 219733727U CN 202321373475 U CN202321373475 U CN 202321373475U CN 219733727 U CN219733727 U CN 219733727U
- Authority
- CN
- China
- Prior art keywords
- clamping ring
- blade
- hub
- convex clamping
- locking plate
- Prior art date
- 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.)
- Active
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- 238000000338 in vitro Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides an aluminum blade external adjusting mechanism for an axial flow fan, which comprises: the hub comprises a hub surface, a hub radial plate and a hub port flange; the blade handle sleeve is arranged on the hub surface of the hub; the tail part of the blade handle penetrates through the hub surface and the handle sleeve, and an annular groove is formed in the tail part of the blade handle; the convex clamping ring is arranged on an annular groove at the tail part of the blade handle and comprises a first convex clamping ring and a second convex clamping ring; the high-strength bolt is used for fixing the convex clamping ring; the locking plate bolt is used for fixing the convex clamping ring to the blade handle sleeve; the locking plate is provided with a plurality of locking plate bolt holes; and the T-shaped groove fixing bolt is used for fixing the convex clamping ring and the blade handle sleeve. The method has the advantages of simple design and manufacture, convenient adjustment, lower cost than the prior art, easy purchase, and stable and reliable operation after practical application.
Description
Technical Field
The utility model relates to the field of mining axial flow fans, in particular to an aluminum blade external adjusting mechanism for an axial flow fan.
Background
In the mining axial flow fan industry, many customers require blade adjustment (external adjustment for short) without pulling the fan two-stage main machine apart. The prior cast aluminum blade adjusting technology in the fan industry is divided into two types, wherein the first type is a pressing clamp type, after a blade shank passes through a hub surface, a semicircular pressing block is matched with a blade shank clamping groove at the lower end of the blade, and the pressing block is screwed down and fixed on a hub web plate through bolts, so that the blade shank cannot rotate. But the shutdown treatment is needed, and a two-stage host is pulled away after shutdown, and then the mode of slice-by-slice regulation is adopted; the second is that the petiole of blade lower extreme is close to the tip, processes out the ring channel, and through two semicircular snap rings (the petiole cover has inlayed in the hub surface in advance this moment, and two semicircular snap rings pass through 2 countersunk bolt connection fastening) when the petiole passes the petiole cover, utilizes the wall of ring channel to block the petiole, prevents that the blade petiole from throwing away under centrifugal force effect. In order to prevent the rotation of the blade handle, the rotation of the blade handle is regulated through the rotation regulation of the arc-shaped pressing block, namely, the installation angle of the blade root of the blade is regulated. The arc-shaped pressing block controls the rotation quantity of the locking pin with the milling inclination, and the locking pin with the milling inclination ensures the linear motion of the locking pin through the locking pin sleeve.
In the prior art, the first fixing mode cannot realize in-vitro adjustment, so that the requirement of a customer cannot be met. The second fixing mode can realize external adjustment, but has the defects that the locking pin of the arc-shaped pressing block is compacted through inclination, the linear motion of the locking pin is guaranteed through a locking pin sleeve, the locking pin sleeve is welded inside a hub surface, the contact area is small, the welding length is limited, and the welding seam is easy to separate. The possibility that the locking pin loses linear motion is easy to cause is high, so that the rotation of the arc-shaped pressing block cannot be controlled. That is, the rotation of the blade handle is easy to lose control, and when any blade rotates, all the blades can be destroyed.
The utility model aims to solve the problems, and provides an aluminum blade external adjusting mechanism for an axial flow fan, which can adjust the blade angle without pulling a secondary main machine of the fan, and overcomes the potential risk defect that an arc-shaped pressing block cannot be controlled due to the fact that a locking pin sleeve on the inner side of an existing impeller hub is easy to drop, so that a blade handle is out of rotation control.
Disclosure of Invention
The utility model provides an aluminum blade external adjusting mechanism for an axial flow fan, which is characterized in that the diameter of a primary blade handle sleeve is increased, the processing of a locking pin, a mutual pressing block and a locking pin sleeve is eliminated, the characteristics of a clamping ring are changed into a convex shape, a T-shaped groove fixing bolt is adopted for control, and the rotation safety of a blade handle can be realized.
In order to achieve the above object, the present utility model provides an aluminum blade body external adjusting mechanism for an axial flow fan, comprising:
the hub comprises a hub surface, a hub spoke plate and a hub port flange, wherein the hub surface is provided with a blade shank sleeve hole and an adjusting hole, the hub spoke plate is provided with a groove, the groove is T-shaped, the hub spoke plate and the hub port flange are perpendicular to the hub surface, and the hub spoke plate is parallel to the hub flange;
the blade handle sleeve is arranged in a blade handle sleeve hole of the hub surface, the blade handle sleeve is provided with a fixing hole, the fixing hole of the blade handle sleeve and the adjusting hole are positioned on the same axis, and the blade handle sleeve is arranged at the upper part of the hub spoke plate groove;
the tail part of the blade shank penetrates through the hub surface and the shank sleeve, and an annular groove is formed in the tail part of the blade shank;
the convex clamping ring is arranged on an annular groove at the tail part of the blade handle, the convex clamping ring is in contact with the blade handle sleeve, the convex clamping ring comprises a first convex clamping ring and a second convex clamping ring, the first convex clamping ring and the second convex clamping ring are in convex shapes, connecting bolt holes, locking plate bolt holes and adjusting grooves are formed in the first convex clamping ring and the second convex clamping ring, and the adjusting grooves are arc-shaped;
the high-strength bolt is arranged in the connecting bolt holes of the first convex clamping ring and the second convex clamping ring;
the locking plate bolts are respectively arranged in the locking plate bolt holes of the first convex clamping ring and the second convex clamping ring;
the locking plate is arranged on the convex type clamping ring and sleeved at the tail part of the blade handle in a ring mode, a plurality of locking plate bolt holes are formed in the locking plate, and the locking plate bolts are matched with the convex type clamping ring locking plate bolt holes through the locking plate bolt holes of the locking plate; and
t-shaped groove fixing bolts penetrate through the adjusting grooves of the first convex clamping ring and the second convex clamping ring respectively, and the fixing holes of the blade handle sleeve are matched with the adjusting holes of the hub surface.
Further, the aluminum blade external adjusting mechanism for the axial flow fan further comprises a fixing nut, and the fixing nut is matched with the high-strength bolt.
Further, the aluminum blade body external adjusting mechanism for the axial flow fan further comprises a anticreep nut, wherein the anticreep nut is arranged in the convex clamping ring adjusting groove, and the anticreep nut is matched with the tail end of the T-shaped groove fixing bolt.
Further, the aluminum blade external adjusting mechanism for the axial flow fan further comprises a gasket, wherein the gasket is arranged on the high-strength bolt, the T-shaped groove fixing bolt and the locking plate bolt.
Compared with the prior art, according to the aluminum blade external adjusting mechanism for the axial flow fan, the convex clamping ring is arranged to be matched with the tail part of the blade handle through the blade handle sleeve with the increased diameter, so that the safety of blade handle rotation is controlled, excessive part assembly is reduced, the device assembly time is saved, the part processing difficulty is reduced, the adjusting groove arranged on the convex clamping ring is convenient for adjusting the blade handle to rotate, the locking plate is matched with the convex clamping ring, the T-shaped groove fixing bolt in the adjusting groove of the convex clamping ring is effectively prevented from falling, the manufacturing of each part is simple, the blade handle adjusting is convenient, the cost is lower than that of the prior art, the purchasing is easy, and the operation is stable and reliable through practical application.
Drawings
FIG. 1 is a schematic plan view showing the overall structure of an aluminum blade external adjusting mechanism for an axial flow fan;
FIG. 2 is a schematic side sectional view of an aluminum blade external adjusting mechanism for an axial flow fan according to the present utility model;
FIG. 3 is a schematic view showing a partially enlarged sectional structure of an aluminum blade body external adjusting mechanism for an axial flow fan according to the present utility model;
FIG. 4 is a perspective view of a single structure of an aluminum blade in-vitro adjusting mechanism for an axial flow fan according to the present utility model;
FIG. 5 is a perspective side view of a single structure of an aluminum blade in-vitro adjusting mechanism for an axial flow fan according to the present utility model;
FIG. 6 is a schematic top view of an aluminum blade external adjusting mechanism for an axial flow fan without locking plate; and
fig. 7 is a schematic diagram showing a structure of a lock plate in a top view of an external adjusting mechanism of an aluminum blade for an axial flow fan.
Reference numerals:
1. hub surface; 101. a petiole trepanning; 102. an adjustment aperture;
2. a hub web; 201. a groove;
3. a hub opening flange; 4. a leaf stalk sleeve; 401. a fixing hole;
5. blade stems; 501. an annular groove;
6. a convex clasp; 601. a first convex snap ring; 602. a second convex snap ring; 603. a connecting bolt hole; 604. locking plate bolt holes; 605. an adjustment tank;
7. a high strength bolt; 8. a fixing nut; 9. a locking plate bolt; t-shaped groove fixing bolts; 11. a drop-proof nut; 12. and (5) locking plates.
Detailed Description
For a further understanding of the objects, construction, features, and functions of the utility model, reference should be made to the following detailed description of the preferred embodiments.
Referring to fig. 1 to 7, an aluminum blade external adjusting mechanism for an axial flow fan according to an embodiment of the present utility model includes:
the hub comprises a hub surface 1, a hub spoke plate 2 and a hub port flange 3, wherein the hub surface 1 is provided with a blade shank sleeve hole 101 and an adjusting hole 102, the hub spoke plate 2 is provided with a groove 201, the groove 201 is in a T shape, the hub spoke plate 2 and the hub port flange 3 are perpendicular to the hub surface 1, and the hub spoke plate 2 is parallel to the hub flange 3; one end of the hub is identical to the mounting blade handle, and a groove is formed at the joint of the other end of the hub surface and the hub radial plate and used for fixing the blade handle sleeve, the convex clamping ring and other parts;
the blade stem sleeve 4, as shown in fig. 3, the blade stem sleeve 4 is arranged in the blade stem sleeve hole 101 of the hub surface 1, the blade stem sleeve 4 is provided with a fixing hole 401, the fixing hole 401 of the blade stem sleeve 4 and the adjusting hole 102 are positioned on the same axis, and the blade stem sleeve 4 is arranged at the upper part of the groove 201 of the hub spoke plate 2;
blade shank 5, as shown in FIG. 3, the tail part of blade shank 5 passes through hub surface 1 and shank sleeve 4, and the tail part of blade shank 5 is provided with annular groove 501; the annular groove at the tail part of the blade handle is used for installing a convex clamping ring to prevent the blade handle from rotating;
the convex clamping ring 6 is arranged on the annular groove 501 at the tail part of the blade shank 5 as shown in fig. 3 and 6, the convex clamping ring 6 is in contact with the blade shank sleeve 4, the convex clamping ring 6 comprises a first convex clamping ring 601 and a second convex clamping ring 602, the first convex clamping ring 601 and the second convex clamping ring 602 are convex, the first convex clamping ring 601 and the second convex clamping ring 602 are provided with connecting bolt holes 603, locking plate bolt holes 604 and adjusting grooves 605, and the adjusting grooves 605 are arc-shaped; the adjusting groove realizes the rotation of the blade handle;
high-strength bolts 7, as shown in fig. 6 and 7, the high-strength bolts 7 are provided in the connecting bolt holes 603 of the first and second male snap rings 601 and 602; the high-strength bolt is connected through an anti-falling bolt by a first connecting bolt hole and a second connecting bolt hole which are opposite to each other, so that the convex clamping ring is fixed in the annular groove of the blade handle;
the locking plate bolts 9, as shown in fig. 7, the locking plate bolts 9 are respectively arranged in locking plate bolt holes 604 of the first convex snap ring 601 and the second convex snap ring 602;
the locking plate 12 is arranged on the convex type clamping ring 6 and sleeved at the tail part of the blade handle 5 in a ring mode, the locking plate 12 is provided with a plurality of locking plate bolt holes 604, and the locking plate bolts 9 are matched with the locking plate bolt holes 604 of the convex type clamping ring 6 through the locking plate bolt holes 604 of the locking plate 12; the locking plate bolt is connected and fixed with the locking plate bolt holes of the first convex clamping ring and the second convex clamping ring through the locking plate bolt holes of the locking plate, so that the blade handle is prevented from rotating; and
the T-shaped groove fixing bolt 10, as shown in fig. 3 and 6, the T-shaped groove fixing bolt 10 is respectively fitted through the adjustment grooves 605 of the first and second convex snap rings 601 and 602, the fixing hole 401 of the shank sleeve 4, and the adjustment hole 102 of the hub surface 1. T-shaped groove fixing bolt and anticreep nut cooperation make the convex snap ring further compress tightly to the petiole cover behind the petiole afterbody through high strength bolt locking, if adjust the petiole rotation (adjust blade root installation angle), only need be through adjusting the anticreep nut that is located hub surface regulation hole of pine for there is certain clearance that removes the convex snap ring with the petiole cover, rotate the convex snap ring of fixing at petiole afterbody ring channel this moment, its T-shaped groove fixing bolt moves in the adjustment inslot of convex snap ring, wait to remove appointed angle, screw up the anticreep nut in hub surface regulation hole, accomplish the rotation of adjusting the petiole promptly.
Further, the aluminum blade external adjusting mechanism for the axial flow fan further comprises a fixing nut 8, and the fixing nut 8 is matched with the high-strength bolt 7. And firmly fixing the first convex clamping ring and the second convex clamping ring in the annular groove at the tail part of the blade handle.
Further, the aluminum blade body external adjusting mechanism for the axial flow fan further comprises a anticreep nut 11, wherein the anticreep nut 11 is arranged in the adjusting groove 605 of the convex clamping ring 6, and the anticreep nut 11 is matched with the tail end of the T-shaped groove fixing bolt 10. Is used for fixing the petiole to prevent the petiole from autorotation.
Further, the aluminum blade external adjusting mechanism for the axial flow fan further comprises washers, and the washers are arranged on the high-strength bolts 7, the T-shaped groove fixing bolts 10 and the locking plate bolts 9.
According to the aluminum blade external adjusting mechanism for the axial flow fan, provided by the embodiment of the utility model, the tail part of the blade handle, the blade handle sleeve and the convex clamping ring are arranged in the groove formed by connecting the hub surface with the hub radial plate, the structure of the connecting part is reduced, the gap between blade roots is convenient to adjust, and the structure of the connecting part is compact. According to the utility model, the diameter of the original handle sleeve is increased, the annular groove at the tail part of the handle is locked by the convex clamping ring, and the handle is tightly pressed by the T-shaped groove fixing bolt, so that the rotation of the handle is limited, the problems of time and labor waste, excessive assembly parts, difficult processing of the parts and the like in the original installation are solved, and the quick replacement or assembly is realized. According to the utility model, the locking plate is sleeved at the tail of the blade handle and is fixed on the convex clamping ring through the locking plate bolt, so that the convex clamping ring is covered, the possibility that the T-shaped groove fixing bolt in the adjusting groove of the convex clamping ring falls off when the angle of the blade root of the blade is adjusted is prevented, and the safety of controlling the rotation of the blade handle is realized. The utility model has been practically tested on the fans of FBCDZ No. 26, FBCDZ No. 27 and FBCDZ No. 35. After actual operation adjustment, the problems do not appear yet, and the expected requirements are completely met.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer" orientation or positional relationship are merely for convenience of description and to simplify the description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
The utility model has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the utility model. It should be noted that the disclosed embodiments do not limit the scope of the utility model. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (4)
1. An external adjustment mechanism of aluminium blade for axial fan, characterized by comprising:
the hub comprises a hub surface, a hub spoke plate and a hub port flange, wherein the hub surface is provided with a blade shank sleeve hole and an adjusting hole, the hub spoke plate is provided with a groove, the groove is T-shaped, the hub spoke plate and the hub port flange are perpendicular to the hub surface, and the hub spoke plate is parallel to the hub flange;
the blade handle sleeve is arranged in a blade handle sleeve hole of the hub surface, the blade handle sleeve is provided with a fixing hole, the fixing hole of the blade handle sleeve and the adjusting hole are positioned on the same axis, and the blade handle sleeve is arranged at the upper part of the hub spoke plate groove;
the tail part of the blade shank penetrates through the hub surface and the shank sleeve, and an annular groove is formed in the tail part of the blade shank;
the convex clamping ring is arranged on an annular groove at the tail part of the blade handle, the convex clamping ring is in contact with the blade handle sleeve, the convex clamping ring comprises a first convex clamping ring and a second convex clamping ring, the first convex clamping ring and the second convex clamping ring are in convex shapes, connecting bolt holes, locking plate bolt holes and adjusting grooves are formed in the first convex clamping ring and the second convex clamping ring, and the adjusting grooves are arc-shaped;
the high-strength bolt is arranged in the connecting bolt holes of the first convex clamping ring and the second convex clamping ring;
the locking plate bolts are respectively arranged in the locking plate bolt holes of the first convex clamping ring and the second convex clamping ring;
the locking plate is arranged on the convex type clamping ring and sleeved at the tail part of the blade handle in a ring mode, the locking plate is provided with a plurality of locking plate bolt holes, and the locking plate bolt of the aluminum blade external adjusting mechanism for the axial flow fan is matched with the locking plate bolt hole of the convex type clamping ring through the locking plate bolt hole of the locking plate; and
t-shaped groove fixing bolts penetrate through the adjusting grooves of the first convex clamping ring and the second convex clamping ring respectively, and the fixing holes of the blade handle sleeve are matched with the adjusting holes of the hub surface.
2. The external adjusting mechanism for an aluminum blade for an axial flow fan according to claim 1, further comprising a fixing nut, said fixing nut being mated with said high-strength bolt.
3. The external adjusting mechanism for aluminum blades for axial flow fans according to claim 1, further comprising a drop-proof nut, wherein the drop-proof nut is arranged in the convex-type snap ring adjusting groove, and the drop-proof nut is matched with the tail end of the T-shaped groove fixing bolt.
4. The aluminum blade in-vitro adjusting mechanism for an axial flow fan according to claim 1, further comprising washers provided on the high-strength bolt, the T-slot fixing bolt, and the locking plate bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321373475.6U CN219733727U (en) | 2023-06-01 | 2023-06-01 | Aluminum blade external adjusting mechanism for axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321373475.6U CN219733727U (en) | 2023-06-01 | 2023-06-01 | Aluminum blade external adjusting mechanism for axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219733727U true CN219733727U (en) | 2023-09-22 |
Family
ID=88026691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321373475.6U Active CN219733727U (en) | 2023-06-01 | 2023-06-01 | Aluminum blade external adjusting mechanism for axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219733727U (en) |
-
2023
- 2023-06-01 CN CN202321373475.6U patent/CN219733727U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4204787A (en) | Milling cutter | |
| US7004692B2 (en) | Rotary cutting tool | |
| US3990810A (en) | Vane assembly for close coupling the compressor turbine and a single stage power turbine of a two-shaped gas turbine | |
| DE69004975T2 (en) | Pump impeller. | |
| US20190321828A1 (en) | Cutter wheel, cutter disc as well as cutter assembly suitable for grinder pumps | |
| US20190321827A1 (en) | A method for providing an axial gap in a cutter assembly of a grinder pump, and a grinder pump comprising a shim configured for providing said axial gap | |
| CN219733727U (en) | Aluminum blade external adjusting mechanism for axial flow fan | |
| US8419369B2 (en) | Axial flow hydraulic turbine with fixed blades bolted-on | |
| US4456408A (en) | High speed milling cutter | |
| US7111542B2 (en) | Circular saw blade assembly for a tree felling head | |
| US3323710A (en) | Fan impeller | |
| US8235669B2 (en) | Axial flow hydraulic turbine with blade mounting | |
| CN209435811U (en) | Sugarcane root cutter disc | |
| CN215699904U (en) | Transverse bolt type supporting device | |
| CN219974904U (en) | Be used for external adjustment mechanism of axial fan blade disc type | |
| CN212599203U (en) | Multistation milling cutter dish subassembly with adjustable | |
| CN114576199A (en) | Drive shaft assembly | |
| US4241633A (en) | Trimmer blade | |
| CN212899285U (en) | Line contact pin | |
| JP2004263697A (en) | Improvement of turbine and in particular pelton wheel turbine | |
| JP2003251515A (en) | Cutting edge part replacement type cutting tool and cutting edge part mounted in the same | |
| CN210173005U (en) | Different forms's little handle of a knife and HSK handle of a knife switching anchor clamps | |
| CN214092438U (en) | Plate type hub and impeller for axial flow fan | |
| EP3440917B1 (en) | Blade pin and associated cutting element | |
| US20220063002A1 (en) | Cutting crown mounting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |