阅读说明：本技术 一种叶片角度可调的轴流风机叶轮 (Axial fan impeller with adjustable blade angle ) 是由 杨拥军 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种叶片角度可调的轴流风机叶轮,具体涉及轴流风机领域,包括叶轮转毂和轴流叶片,叶片调节转轴的端部贯穿至叶轮转毂的内侧并套接有调节环,调节环的一侧连接有斜楔齿杆,叶轮转毂的内壁开设有锁止机构滑槽,锁止机构滑槽的内部安装有锁止机构,锁止机构活动套接于斜楔齿杆的外侧,叶轮转毂的内壁安装有联动调节环,联动调节环和叶轮转毂的顶端固定安装有手动调节机构,联动调节环的底面设有斜楔机构。本发明通过设置联动调节环和斜楔机构,利用联动调节环的转动实现斜楔机构和斜楔齿杆的抵接运动,从而通过调节环带动叶片进行角度调节,利用联动调节环实现各个叶片的同步调节,结构简单操作便捷。(The invention discloses an axial flow fan impeller with adjustable blade angles, and particularly relates to the field of axial flow fans, which comprises an impeller rotating hub and axial flow blades, wherein the end part of a blade adjusting rotating shaft penetrates through the inner side of the impeller rotating hub and is sleeved with an adjusting ring, one side of the adjusting ring is connected with a tapered wedge toothed bar, the inner wall of the impeller rotating hub is provided with a locking mechanism sliding chute, a locking mechanism is arranged in the locking mechanism sliding chute, the locking mechanism is movably sleeved on the outer side of the tapered wedge toothed bar, the inner wall of the impeller rotating hub is provided with a linkage adjusting ring, the top ends of the linkage adjusting ring and the impeller rotating hub are fixedly provided with manual adjusting mechanisms, and the bottom surface of the linkage adjusting ring is provided with a tapered wedge mechanism. According to the invention, the linkage adjusting ring and the wedge mechanism are arranged, and the abutting motion of the wedge mechanism and the wedge toothed rod is realized by the rotation of the linkage adjusting ring, so that the blades are driven by the adjusting ring to carry out angle adjustment, the synchronous adjustment of each blade is realized by the linkage adjusting ring, and the structure is simple and the operation is convenient.)

1. The utility model provides an axial fan impeller of blade angularly adjustable, includes impeller hub (1) and axial flow blade (2), blade mounting hole (11) have been seted up to the week side of impeller hub (1), the tip fixedly connected with of axial flow blade (2) is located blade mounting hole (11) inside blade regulation pivot (4), the outside of blade regulation pivot (4) is connected its characterized in that with the inboard rotation of blade mounting hole (11): the tip of blade regulation pivot (4) runs through to the inboard of impeller commentaries on classics hub (1) and fixed the cup joint has adjustable ring (7), one side of adjustable ring (7) is rotated and is connected with slide wedge ratch (8), locking mechanism spout (12) have been seted up to the inner wall of impeller commentaries on classics hub (1), the inside slidable mounting of locking mechanism spout (12) has locking mechanism (9), locking mechanism (9) activity is cup jointed in the outside of slide wedge ratch (8), the inner wall of impeller commentaries on classics hub (1) is rotated and is installed linkage adjustable ring (5), the top fixed mounting of linkage adjustable ring (5) and impeller commentaries on classics hub (1) has manual adjustment mechanism (3), the bottom surface of linkage adjustable ring (5) is equipped with slide wedge mechanism (6), slide wedge mechanism (6) are including protruding voussoir (61) and wedge groove (62), the top surface of protruding voussoir (61) and the bottom surface fixed connection of linkage adjustable ring (5), the wedge groove (62) is arranged on the bottom surface of the linkage adjusting ring (5), and the wedge surfaces of the protruding wedge block (61) and the wedge groove (62) are connected.

2. The axial flow fan impeller with adjustable blade angle of claim 1, wherein: manual adjustment mechanism (3) are including keeping off position arch (31) and manual lever (32), keep off the top surface fixed connection of the bottom of position arch (31) in linkage adjustable ring (5), the bottom surface of manual lever (32) rotates with the top surface of impeller commentaries on classics hub (1) to be connected, the inboard mutual butt of the outside of keeping off position arch (31) and manual lever (32).

3. The axial flow fan impeller with adjustable blade angle of claim 1, wherein: the outer diameter of the linkage adjusting ring (5) is equal to the inner diameter of the impeller rotating hub (1), the outer side of the linkage adjusting ring (5) is in sliding connection with the inner side of the impeller rotating hub (1), and the quantity of the wedge mechanisms (6), the wedge toothed bars (8) and the locking mechanisms (9) is equal to the quantity of the axial flow blades (2).

4. The axial flow fan impeller with adjustable blade angle of claim 1, wherein: locking mechanism spout (12) are the horizontal direction and arrange, one side fixed mounting of locking mechanism (9) has the slider with locking mechanism (9) looks adaptation, locking mechanism (9) are the horizontal direction and arrange, the inside of locking mechanism (9) is run through perpendicularly in slide wedge ratch (8).

5. The axial flow fan impeller with adjustable blade angle of claim 1, wherein: locking mechanism (9) are including locking sliding sleeve (91), electric putter (92) and locking cover (93), locking cover (93) slidable mounting is in the inside of locking sliding sleeve (91), the outside in slide wedge ratch (8) is cup jointed in locking cover (93) and locking pin (94) activity, one side fixed connection of the output of electric putter (92) and locking cover (93), the inner wall fixed connection of electric putter (92) and locking sliding sleeve (91).

6. The axial flow fan impeller with adjustable blade angle of claim 5, wherein: locking tooth (81) have been seted up to one side of slide wedge ratch (8), the inside fixed mounting of locking cover (93) has locking pin (94), the internal diameter width of locking cover (93) is greater than the sum of the transverse length of slide wedge ratch (8), locking tooth (81) and locking cover (93).

7. The axial flow fan impeller with adjustable blade angle of claim 1, wherein: the top of slide wedge ratch (8) is the inclined plane structure, the inclined plane slides the butt with the wedge face of slide wedge mechanism (6), the outside fixed mounting of adjustable ring (7) has the connecting block, the bottom of slide wedge ratch (8) with the connecting block rotates to be connected.

Technical Field

The invention relates to the technical field of axial flow fans, in particular to an axial flow fan impeller with adjustable blade angles.

Background

Axial fan's usage is extensive, often be applied to all kinds of places that need cool off and ventilate, impeller in the current fan, its blade or with wheel hub integrated into one piece, or fixed mounting to wheel hub, no matter which kind of mode is once processed and accomplished, the blade angle just can not change, consequently a finished product impeller can only satisfy the operation requirement of a operating mode, and in the in-service use process, because operational environment's the condition is complicated, required air volume and wind pressure are also diverse, be in the best operating condition in order to guarantee the ventilation blower, still need cooperate the impeller that the use parameter is suitable, not only equipment replacement is troublesome, and the cost burden is increased, the effective rate of utilization of machine has been reduced.

The most structure of the angle adjustable axial fan impeller that uses at present is complicated, and angle modulation is troublesome, need adjust one by one the blade angle, and need guarantee that the regulation inclination of each blade is unanimous, causes traditional adjustable axial fan impeller blade angle modulation loaded down with trivial details, in addition, traditional impeller blade angle modulation back, does not have locking structure, because impeller blade angle automatic deflection easily appears in the effect of windage in the long-term use of axial fan motion, has certain defect.

It is therefore desirable to provide a new axial fan impeller with adjustable blade angle.

Disclosure of Invention

In order to overcome the above-mentioned defects in the prior art, embodiments of the present invention provide an axial flow fan impeller with adjustable blade angles, in which a linked adjusting ring and a tapered wedge mechanism are provided, the rotation of the linked adjusting ring is used to realize the abutting motion of the tapered wedge mechanism and a tapered wedge toothed bar, and a locking mechanism is used to lock the moved tapered wedge toothed bar, so as to limit the axial flow blades to a certain specific angle, thereby solving the problems proposed in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: an axial flow fan impeller with adjustable blade angles comprises an impeller hub and axial flow blades, wherein blade mounting holes are formed in the periphery of the impeller hub, the end part of each axial flow blade is fixedly connected with a blade adjusting rotating shaft positioned inside the blade mounting hole, the outer side of the blade adjusting rotating shaft is rotatably connected with the inner side of the blade mounting hole, the end part of the blade adjusting rotating shaft penetrates through the inner side of the impeller hub and is fixedly sleeved with an adjusting ring, one side of the adjusting ring is rotatably connected with a tapered wedge toothed bar, the inner wall of the impeller hub is provided with a locking mechanism sliding groove, a locking mechanism is slidably mounted inside the locking mechanism sliding groove, the locking mechanism is movably sleeved on the outer side of the tapered wedge toothed bar, the inner wall of the impeller hub is rotatably mounted with a linkage adjusting ring, and the top ends of the linkage adjusting ring and the impeller hub are fixedly mounted with a manual adjusting mechanism, the bottom surface of linkage adjustable ring is equipped with the slide wedge mechanism, the slide wedge mechanism includes protruding voussoir and wedge groove, the top surface of protruding voussoir and the bottom surface fixed connection of linkage adjustable ring, the wedge groove is seted up in the bottom surface of linkage adjustable ring, the wedge face of protruding voussoir and wedge groove links to each other.

In a preferred embodiment, the manual adjustment mechanism includes a gear protrusion and a manual lever, the bottom end of the gear protrusion is fixedly connected to the top surface of the linkage adjusting ring, the bottom surface of the manual lever is rotatably connected to the top surface of the impeller hub, and the outer side of the gear protrusion abuts against the inner side of the manual lever.

In a preferred embodiment, the outer diameter of the linked adjusting ring is equal to the inner diameter of the impeller hub, the outer side of the linked adjusting ring is connected with the inner side of the impeller hub in a sliding mode, and the number of the wedge mechanisms, the wedge toothed bars and the locking mechanisms is equal to the number of the axial flow blades.

In a preferred embodiment, the locking mechanism sliding groove is arranged in a horizontal direction, a sliding block matched with the locking mechanism is fixedly installed on one side of the locking mechanism, the locking mechanism is arranged in the horizontal direction, and the wedge toothed bar vertically penetrates through the inside of the locking mechanism.

In a preferred embodiment, the locking mechanism comprises a locking sliding sleeve, an electric push rod and a locking sleeve, the locking sleeve is slidably mounted inside the locking sliding sleeve, the locking sleeve and a locking pin are movably sleeved outside the wedge toothed bar, the output end of the electric push rod is fixedly connected with one side of the locking sleeve, and the electric push rod is fixedly connected with the inner wall of the locking sliding sleeve.

In a preferred embodiment, one side of the tapered wedge toothed bar is provided with a locking tooth, a locking pin is fixedly installed inside the locking sleeve, and the inner diameter width of the locking sleeve is greater than the sum of the transverse lengths of the tapered wedge toothed bar, the locking tooth and the locking sleeve.

In a preferred embodiment, the top end of the tapered wedge toothed bar is of an inclined surface structure, the inclined surface is in sliding abutment with a wedge surface of the tapered wedge mechanism, a connecting block is fixedly mounted on the outer side of the adjusting ring, and the bottom end of the tapered wedge toothed bar is rotatably connected with the connecting block.

The invention has the technical effects and advantages that:

1. according to the invention, the linkage adjusting ring and the wedge mechanism are arranged, and the abutting motion of the wedge mechanism and the wedge toothed rod is realized by the rotation of the linkage adjusting ring, so that the blades are driven by the adjusting ring to carry out angle adjustment, the synchronous adjustment of each blade is realized by the linkage adjusting ring, and the structure is simple and the operation is convenient;

2. according to the invention, the locking mechanism is arranged, and the locking mechanism is used for locking the moving wedge toothed rod, so that the axial flow blade is limited to a certain specific angle, the automatic deflection of the axial flow blade caused by wind resistance in the working process is avoided, and the angle fixation of the axial flow blade is realized.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partial structural schematic view of an impeller hub of the present invention.

Fig. 3 is a schematic structural view of an axial flow blade adjusting mechanism of the invention.

FIG. 4 is a schematic view of the axial flow blade of the present invention after adjustment.

Fig. 5 is a schematic structural view of the wedge toothed rod and the locking mechanism of the invention.

The reference signs are: 1. an impeller hub; 2. an axial flow blade; 3. a manual adjustment mechanism; 4. a blade adjusting rotating shaft; 5. a linkage adjusting ring; 6. a wedge mechanism; 7. an adjusting ring; 8. a tapered wedge toothed bar; 9. a locking mechanism; 11. a blade mounting hole; 12. a locking mechanism chute; 31. the gear is convex; 32. a manual lever; 61. a raised wedge; 62. a wedge groove; 81. a locking tooth; 91. locking the sliding sleeve; 92. an electric push rod; 93. a locking sleeve; 94. and a locking pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in the attached figures 1-5, the axial flow fan impeller with adjustable blade angle comprises an impeller hub 1 and an axial flow blade 2, wherein the periphery of the impeller hub 1 is provided with a blade mounting hole 11, the end of the axial flow blade 2 is fixedly connected with a blade adjusting rotating shaft 4 positioned in the blade mounting hole 11, the outer side of the blade adjusting rotating shaft 4 is rotatably connected with the inner side of the blade mounting hole 11, the end of the blade adjusting rotating shaft 4 penetrates through the inner side of the impeller hub 1 and is fixedly sleeved with an adjusting ring 7, one side of the adjusting ring 7 is rotatably connected with a tapered wedge toothed bar 8, the inner wall of the impeller hub 1 is provided with a locking mechanism chute 12, the locking mechanism chute 12 is internally provided with a locking mechanism 9 in a sliding manner, the locking mechanism 9 is movably sleeved on the outer side of the tapered wedge toothed bar 8, the inner wall of the impeller hub 1 is rotatably provided with a linkage adjusting ring 5, the linkage adjusting ring 5 and the top end of the impeller hub 1 are fixedly provided with a manual adjusting mechanism 3, the bottom surface of linkage adjustable ring 5 is equipped with slide wedge mechanism 6, and slide wedge mechanism 6 includes protruding voussoir 61 and wedge groove 62, and the top surface of protruding voussoir 61 and the bottom surface fixed connection of linkage adjustable ring 5, and the wedge groove 62 is seted up in the bottom surface of linkage adjustable ring 5, and the wedge face of protruding voussoir 61 and wedge groove 62 links to each other.

The implementation mode is specifically as follows: by arranging the linkage adjusting ring 5 and the wedge mechanism 6, the abutting movement of the wedge mechanism 6 and the wedge toothed rod 8 is realized by the rotation of the linkage adjusting ring 5, so that the blades are driven by the adjusting ring 7 to carry out angle adjustment, the synchronous adjustment of each blade is realized by the linkage adjusting ring 5, and the structure is simple and the operation is convenient; in addition, the locking mechanism 9 is arranged, and the locking mechanism 9 is used for locking the moving wedge toothed rod 8, so that the axial flow blade 2 is limited to a certain specific angle, the automatic deflection of the axial flow blade 2 caused by wind resistance in the working process is avoided, and the angle fixation of the axial flow blade 2 is realized.

The manual adjusting mechanism 3 comprises a gear protrusion 31 and a manual lever 32, the bottom end of the gear protrusion 31 is fixedly connected with the top surface of the linkage adjusting ring 5, the bottom surface of the manual lever 32 is rotatably connected with the top surface of the impeller rotating hub 1, and the outer side of the gear protrusion 31 is abutted against the inner side of the manual lever 32 for manual stepping.

The outer diameter of the linkage adjusting ring 5 is equal to the inner diameter of the impeller rotating hub 1, the outer side of the linkage adjusting ring 5 is in sliding connection with the inner side of the impeller rotating hub 1, the number of the wedge mechanisms 6, the wedge toothed bars 8 and the locking mechanisms 9 is equal to the number of the axial flow blades 2, and linkage adjustment of all the blades is achieved.

Wherein, locking mechanism spout 12 is the horizontal direction and arranges, and one side fixed mounting of locking mechanism 9 has the slider with locking mechanism 9 looks adaptation, and locking mechanism 9 is the horizontal direction and arranges, and the inside of locking mechanism 9 is run through perpendicularly to slide wedge ratch 8 for carry on spacingly to slide wedge ratch 8.

Wherein, locking mechanism 9 includes locking sliding sleeve 91, electric putter 92 and locking cover 93, and locking cover 93 slidable mounting is in the inside of locking sliding sleeve 91, and locking cover 93 and locking pin 94 activity cup joint in the outside of tapered wedge tooth pole 8, and one side fixed connection of electric putter 92's output and locking cover 93, electric putter 92 and locking sliding sleeve 91's inner wall fixed connection realize electric control's locking.

The locking tooth 81 is arranged on one side of the wedge toothed bar 8, the locking pin 94 is fixedly arranged inside the locking sleeve 93, and the inner diameter width of the locking sleeve 93 is larger than the sum of the transverse lengths of the wedge toothed bar 8, the locking tooth 81 and the locking sleeve 93, so that locking is realized.

Wherein, the top of slide wedge ratch 8 is the inclined plane structure, and the inclined plane slides the butt with the wedge face of slide wedge mechanism 6, and the outside fixed mounting of adjustable ring 7 has the connecting block, and the bottom and the connecting block of slide wedge ratch 8 rotate to be connected for convert the turning force of linkage adjustable ring 5 into the longitudinal motion power of slide wedge ratch 8.

Wherein the electric push rod 92 is of a Tapexon/wxtg type.

The working principle of the invention is as follows:

the first step is as follows: when the angle of the axial flow blade 2 needs to be adjusted, firstly, the electric push rod 92 is started to drive the locking sleeve 93 to move towards one side, so that the locking pin 94 and the locking tooth 81 are separated from each other in a meshing state, and the movement unlocking of the wedge tooth rod 8 is realized;

the second step is that: referring to the attached drawings 3 and 4 of the specification, a manual adjusting mechanism 3 on the end face of an impeller hub 1 is manually pulled, the other end of the manual adjusting mechanism 3 drives a linkage adjusting ring 5 to rotate on the surface of the inner wall of the impeller hub 1 through lever movement, so that the inclined surfaces of a wedge groove 62 and a protruding wedge block 61 and the inclined surface at the top end of a wedge toothed rod 8 move tangentially, the wedge toothed rod 8 is pressed to move longitudinally and downwards along the inside of a locking mechanism 9, and a blade adjusting rotating shaft 4 and an axial flow blade 2 are driven to deflect under the action of an adjusting ring 7, so that the angle adjustment of the axial flow blade 2 is realized;

the third step: after the adjustment is finished, the electric push rod 92 is started to push the locking sleeve 93 to move, so that the locking pin 94 is pushed into the locking teeth 81 to be meshed, and the axial flow blade 2 and the blade adjusting rotating shaft 4 are locked.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.