CN210240090U - Fan shaft and fan - Google Patents
Fan shaft and fan Download PDFInfo
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- CN210240090U CN210240090U CN201920996424.6U CN201920996424U CN210240090U CN 210240090 U CN210240090 U CN 210240090U CN 201920996424 U CN201920996424 U CN 201920996424U CN 210240090 U CN210240090 U CN 210240090U
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- shaft
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Abstract
The utility model relates to the technical field of fans, in particular to a fan shaft and a fan, wherein the fan shaft comprises a first connecting flange and a second connecting flange, one of the first connecting flange and the second connecting flange is used for installing fan blades, and the other one of the first connecting flange and the second connecting flange is used for being in transmission connection with a power source; the first shaft is arranged on the first connecting flange, the second shaft is arranged on the second connecting flange, the first shaft is provided with a jack, the second shaft is inserted into the jack, and a plurality of first positioning holes are formed in the circumferential surface of the first shaft at intervals along the axial direction of the first shaft; the connecting piece is connected with the second shaft, and the connecting piece is pegged graft with a plurality of first locating hole alternatives, and the connecting piece links together primary shaft and secondary shaft, makes primary shaft and secondary shaft rotate in step, pegs graft through connecting piece and a plurality of first locating hole alternatives, can adjust the length of fan axle to can make the accommodation of this fan axle wider, reduce the development quantity of mould, and reduction in production cost. The fan comprises the fan shaft.
Description
Technical Field
The utility model relates to a fan technical field especially relates to a fan shaft and fan.
Background
The fan is widely applied to the automobile industry and can be used for cooling heat-generating components.
The structure of current fan includes flabellum, fan axle and motor usually, and the motor passes through the fan axle and drives the flabellum rotation, however, the length of current fan axle is generally all fixed, but in whole car design, in the consideration to installation space, the length of fan axle is the multiple of possibly designing, and even, need add drive assembly sometimes between fan axle and motor to satisfy the space demand on whole car overall arrangement. This results in the need for different molds to produce correspondingly sized fan shafts, resulting in increased production costs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a fan axle and fan to solve prior art fan axle's length usually fixed, when the fan axle of needs not unidimensional, need corresponding mould to produce, lead to the problem of manufacturing cost increase.
In one aspect, the utility model provides a fan shaft, this fan shaft includes:
the fan blade mounting device comprises a first connecting flange and a second connecting flange, wherein one of the first connecting flange and the second connecting flange is used for mounting fan blades, and the other one of the first connecting flange and the second connecting flange is used for being in transmission connection with a power source;
the first shaft is arranged on the first connecting flange, the second shaft is arranged on the second connecting flange, the first shaft is provided with an insertion hole, the second shaft is inserted in the insertion hole, and a plurality of first positioning holes are formed in the circumferential surface of the first shaft at intervals along the axial direction of the first shaft;
the connecting piece, the connecting piece with the second shaft is connected, just the connecting piece with a plurality of first locating hole alternative grafting.
Preferably, a plurality of second positioning holes are arranged at intervals on the second shaft along the axial direction of the second shaft, and the connecting piece can partially extend into one of the plurality of second positioning holes.
Preferably, the connecting member is a pin, and the pin can be partially inserted into the second positioning hole.
Preferably, the connecting piece is a bolt, each second positioning hole is a threaded hole, and the bolt and the second shaft can be screwed in any one of the threaded holes.
Preferably, the connecting piece is the spring catch, the spring catch includes shell, round pin post and pressure spring, the shell inlays to be located the second shaft, the round pin post with shell sliding fit, the round pin post has the withdrawal compression position and the partial salient in the shell the outer locking position of shell, the pressure spring is connected the round pin post with the shell, the pressure spring can drive the round pin post by the compression position to the locking position slides, works as the round pin post is located during the locking position, the round pin post can with a plurality of a locating hole alternative is pegged graft.
Preferably, one of the inner peripheral surface of the first shaft and the outer peripheral surface of the second shaft is provided with a key, and the other is provided with a key groove, the key groove extends along the axial direction of the second shaft, and the key is inserted into the key groove.
Preferably, a central angle of the key corresponding to a minor arc between the key and the first positioning hole is 90 ° to 180 ° in a circumferential direction of the first shaft.
Preferably, the first shaft is provided integrally with the first connecting flange.
Preferably, the second shaft is provided integrally with the second connecting flange.
On the other hand, the utility model provides a fan, fan shaft in the above-mentioned arbitrary scheme of including.
The utility model has the advantages that:
the utility model discloses a body is with a fan axle, this fan axle include first flange, second flange, primary shaft, secondary shaft and connecting piece. One of the first connecting flange and the second connecting flange is used for mounting the fan blade, and the other one of the first connecting flange and the second connecting flange is used for being in transmission connection with a power source; the first shaft is arranged on the first connecting flange, the second shaft is arranged on the second connecting flange, the first shaft is provided with a jack, the second shaft is inserted into the first shaft, and a plurality of first positioning holes are arranged on the circumferential surface of the first shaft at intervals along the axial direction of the first shaft; the connecting piece is connected with the second shaft and is selectively inserted into the first positioning holes. The connecting piece links together primary shaft and secondary shaft, makes primary shaft and secondary shaft rotate in step, pegs graft through connecting piece and a plurality of first locating hole alternatives, can adjust the length of fan axle in the axial direction of fan axle to can make the accommodation of this fan axle wider, reduce the development quantity of mould, and reduction in production cost.
Drawings
FIG. 1 is an exploded view of a fan shaft according to an embodiment of the present invention;
fig. 2 is a schematic radial cross-section of a fan shaft according to an embodiment of the present invention (the cross-section passes through a key and a pin).
In the figure:
1. a first connecting flange; 2. a second connecting flange; 3. a first shaft; 31. a first positioning hole; 32. a jack; 4. a second shaft; 41. a second positioning hole; 5. a pin; 6. a key; 7. a keyway.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, 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 relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 and 2, the present embodiment provides a fan shaft including a first connection flange 1, a second connection flange 2, a first shaft 3, a second shaft 4, and a connection member. One of the first connecting flange 1 and the second connecting flange 2 is used for installing fan blades, and the other one of the first connecting flange 1 and the second connecting flange 2 is used for being in transmission connection with a power source; the power source may be an electric motor or an engine. Specifically, in the present embodiment, the first connecting flange 1 is connected to a power source, and the second connecting flange 2 is used for installing fan blades. The first shaft 3 is arranged on the first connecting flange 1, the second shaft 4 is arranged on the second connecting flange 2, the first shaft 3 is provided with a jack 32, the second shaft 4 is inserted into the jack 32, and a plurality of first positioning holes 31 are arranged on the circumferential surface of the first shaft 3 at intervals along the axial direction of the first shaft 3; the connecting element is connected with the second shaft 4 and is selectively inserted into the first positioning holes 31. In this embodiment, the connecting piece links together the primary shaft 3 and the secondary shaft 4, makes the primary shaft 3 and the secondary shaft 4 can rotate in step, pegs graft through connecting piece and a plurality of first locating hole 31 alternatives, can adjust the length of fan axle in the axial direction of fan axle to can make the accommodation of this fan axle wider, reduce the development quantity of mould, and reduction in production cost.
It will be appreciated that the inner diameter of the socket 32 matches the outer diameter of the second shaft 4. In this embodiment, the first connecting flange 1 is used for being connected with a power source in a transmission manner, and the second connecting flange 2 is used for being connected with fan blades. In other embodiments, the second connecting flange 2 may be used for driving connection with a power source, and the first connecting flange 1 may be used for connecting with fan blades.
Preferably, the plurality of first positioning holes 31 are arranged at equal intervals.
In this embodiment, a plurality of second positioning holes 41 are provided at intervals on the circumferential surface of the second shaft 4 in the axial direction of the second shaft 4, and the connecting member can partially protrude into one of the plurality of second positioning holes 41. The connecting piece is a pin 5, and the pin 5 can be partially inserted into the second positioning hole 41. The first shaft 3 and the second shaft 4 are connected by a pin 5 to prevent the first shaft 3 and the second shaft 4 from rotating relative to each other. It is conceivable that the connecting member may also be a bolt (not shown in the drawings), and accordingly, each of the second positioning holes 41 is a threaded hole, and the bolt can be screwed with the second shaft 4 to any one of the threaded holes. Preferably, the plurality of second positioning holes 41 are arranged at equal intervals.
In other embodiments, the connecting element is a spring pin (not shown in the drawings), the spring pin includes a housing, a pin and a pressure spring, the housing is embedded in the second shaft 4, the pin is slidably engaged with the housing, the pin has a compression position retracted into the housing and a locking position partially protruding out of the housing, the pressure spring connects the pin and the housing, the pressure spring can drive the pin to slide from the compression position to the locking position, and when the pin is located in the locking position, the pin can be alternatively inserted into the first positioning holes 31. It can be understood that the housing is provided with a containing cavity, the pin is movably arranged in the containing cavity, and when the pin is arranged at the locking position, the pin is clamped with the housing to limit the pin to be separated from the containing cavity.
Optionally, one of the inner peripheral surface of the first shaft 3 and the outer peripheral surface of the second shaft 4 is provided with a key 6, the other is provided with a key groove 7, the key groove 7 extends along the axial direction of the second shaft 4, the key 6 is inserted into the key groove 7, and the key 6 is slidably located in the key groove 7. By keying the first shaft 3 and the second shaft 4, the first shaft 3 and the second shaft 4 can be more effectively prevented from rotating relative to each other. The keys 6 and keyways 7 may be provided in pairs in sets according to actual requirements. In this embodiment, the first shaft 3 is provided with a key groove 7 on the inner peripheral surface thereof, and the second shaft 4 is provided with a key 6 on the outer peripheral surface thereof.
The central angle corresponding to the minor arc between the key 6 and the first positioning hole 31 is 90-180 ° in the circumferential direction of the first shaft 3. For example, the central angle is 90 °, 100 °, 110 °, 120 °, 130 °, 140 °, 150 °, 160 °, 170 °, or 180 °.
Alternatively, the first shaft 3 is provided integrally with the first connecting flange 1. The second shaft 4 is arranged integrally with the second connecting flange 2.
The embodiment also provides a fan, which comprises the fan shaft in the scheme.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A fan shaft, comprising:
the fan blade mounting device comprises a first connecting flange (1) and a second connecting flange (2), wherein one of the first connecting flange (1) and the second connecting flange (2) is used for mounting fan blades, and the other of the first connecting flange (1) and the second connecting flange (2) is used for being in transmission connection with a power source;
the connecting structure comprises a first shaft (3) and a second shaft (4), wherein the first shaft (3) is arranged on the first connecting flange (1), the second shaft (4) is arranged on the second connecting flange (2), a jack (32) is arranged on the first shaft (3), the second shaft (4) is inserted into the jack (32), and a plurality of first positioning holes (31) are formed in the circumferential surface of the first shaft (3) at intervals along the axial direction of the first shaft (3);
the connecting piece, the connecting piece with second axle (4) are connected, just the connecting piece with a plurality of first locating hole (31) alternative grafting.
2. The fan shaft according to claim 1, wherein a plurality of second positioning holes (41) are provided at intervals on the second shaft (4) in the axial direction of the second shaft (4), and the connecting member is partially inserted into one of the plurality of second positioning holes (41).
3. The fan shaft according to claim 2, characterized in that the connection is a pin (5), the pin (5) being partly insertable into the second positioning hole (41).
4. The fan shaft according to claim 2, wherein the connecting member is a bolt, each of the second positioning holes (41) is a threaded hole, and the bolt is capable of being screwed with the second shaft (4) to any one of the threaded holes.
5. The fan shaft according to claim 1, wherein the connecting member is a spring pin, the spring pin includes a housing, a pin, and a compression spring, the housing is embedded in the second shaft (4), the pin is slidably engaged with the housing, the pin has a compressed position retracted into the housing and a locked position partially protruding out of the housing, the compression spring connects the pin and the housing, the compression spring can drive the pin to slide from the compressed position to the locked position, and when the pin is located at the locked position, the pin can be selectively inserted into the first positioning holes (31).
6. The fan shaft according to any of claims 1-5, wherein one of the inner peripheral surface of the first shaft (3) and the outer peripheral surface of the second shaft (4) is provided with a key (6), and the other is provided with a key groove (7), the key groove (7) extends in the axial direction of the second shaft (4), and the key (6) is inserted into the key groove (7).
7. The fan shaft according to claim 6, characterized in that the central angle corresponding to the minor arc between the key (6) and the first positioning hole (31) is 90-180 ° in the circumferential direction of the first shaft (3).
8. The fan shaft according to claim 1, characterized in that the first shaft (3) is provided integrally with the first connection flange (1).
9. The fan shaft according to claim 1, characterized in that the second shaft (4) is provided integrally with the second connection flange (2).
10. A fan comprising a fan shaft according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996424.6U CN210240090U (en) | 2019-06-28 | 2019-06-28 | Fan shaft and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996424.6U CN210240090U (en) | 2019-06-28 | 2019-06-28 | Fan shaft and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240090U true CN210240090U (en) | 2020-04-03 |
Family
ID=69988523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920996424.6U Active CN210240090U (en) | 2019-06-28 | 2019-06-28 | Fan shaft and fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210240090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550451A (en) * | 2020-04-21 | 2020-08-18 | 山东中威空调设备集团暖通有限公司 | Large-scale fan convenient to clearance |
-
2019
- 2019-06-28 CN CN201920996424.6U patent/CN210240090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550451A (en) * | 2020-04-21 | 2020-08-18 | 山东中威空调设备集团暖通有限公司 | Large-scale fan convenient to clearance |
| CN111550451B (en) * | 2020-04-21 | 2022-02-01 | 山东中威空调设备集团暖通有限公司 | Large-scale fan convenient to clearance |
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