阅读说明：本技术 一种散热器风扇叶片可调节装置 (Radiator fan blade adjustable device ) 是由 宋亚伟 宋方真 刘恩亮 于 2020-08-04 设计创作，主要内容包括：本发明公开了一种散热器风扇叶片可调节装置,包括：叶片；连接座；风扇轮毂,所述风扇轮毂沿着圆周方向开设有环形槽；环形滑块,所述环形滑块沿着所述环形槽圆周滑动；所述连接座一端与所述叶片连接,另一端与所述环形滑块连接；所述风扇轮毂套设有导风罩。本发明通过风扇叶片与风扇轮毂的可拆卸式连接方式,可以方便调节叶片间距以及叶片顶端与导风罩之间的间隙方便风扇设计,减少研发成本,拆装方便,便于后期维护。(The invention discloses an adjustable device for fan blades of a radiator, which comprises: a blade; a connecting seat; the fan hub is provided with an annular groove along the circumferential direction; an annular slider that slides circumferentially along the annular groove; one end of the connecting seat is connected with the blade, and the other end of the connecting seat is connected with the annular sliding block; the fan wheel hub sleeve is provided with an air guide cover. According to the detachable fan blade, the detachable connection mode of the fan blade and the fan hub is adopted, so that the blade distance and the gap between the top end of the blade and the air guide cover can be conveniently adjusted, the design of the fan is facilitated, the research and development cost is reduced, the disassembly and the assembly are convenient, and the later maintenance is facilitated.)

1. A heat sink fan blade adjustable device, comprising:

a blade (1);

a connecting seat (2);

the fan wheel hub (4), the said fan wheel hub (4) offers the ring channel (10) along the direction of circumference;

the annular sliding block (3) slides along the circumference of the annular groove (10);

one end of the connecting seat (2) is connected with the blade (1), and the other end of the connecting seat is connected with the annular sliding block (3);

the fan hub (4) is sleeved with an air guide cover (9).

2. Radiator fan blade adjustable device according to claim 1, characterized in that the connection seat (2) is connected to the blade (1) by means of a bushing with a connection block (11).

3. Radiator fan blade adjustable device according to claim 1, characterized in that the connection block (11) is connected with the connection socket (2) by means of an adjusting shim (5).

4. The radiator fan blade adjustable device according to claim 3, wherein the connection block (11), the adjusting washer (5) and the connection socket (2) are connected by a bolt one (6).

5. Radiator fan blade adjustable device according to claim 1, characterized in that the connection seat (2) is fixedly connected with an annular slider (3).

6. Radiator fan blade adjustable device according to claim 1, characterized in that the annular slider (3) is connected to the fan hub (4) by means of a second bolt (7).

Technical Field

The invention relates to an adjustable device for fan blades of a radiator, and belongs to the technical field of heat dissipation of excavators.

Background

The parameters of fan blades of the radiator of the excavator have important influence on the heat radiation performance of the radiator, the parameters of the fan blades of the radiator have important influence on the heat radiation performance of the fan, and the fan blades and a fan hub of the existing radiator of the excavator are mostly integrated; the technical scheme mainly researches the following two points: first, blade pitch: when the clearance between the blades is too small, airflow disturbance can be caused, the friction on the surfaces of the blades is increased, the efficiency of the fan is reduced, and when the clearance is too large, the pressure loss is increased; and secondly, blade end clearance, namely, the adjustment of the clearance between the top of the fan blade and the air guide cover is a great difficulty in fan design, and the excessive clearance can increase the friction between airflow and the blade and the air guide cover. Increasing the noise, increasing the clearance reduces the fan efficiency due to the effects of the flyback airflow, etc.

Disclosure of Invention

The invention aims to provide an adjustable device for radiator fan blades, which aims to overcome the defect that in the prior art, most of radiator fan blades and a fan hub of an excavator are integrated and are not detachable, so that the gap between the blades is difficult to adjust.

A heat sink fan blade adjustable device comprising:

a blade;

a connecting seat;

the fan hub is provided with an annular groove along the circumferential direction;

an annular slider that slides circumferentially along the annular groove;

one end of the connecting seat is connected with the blade, and the other end of the connecting seat is connected with the annular sliding block;

the fan wheel hub sleeve is provided with an air guide cover.

Preferably, in the adjustable device for the fan blades of the radiator, the connecting base is connected with the fan blades through a connecting block in a sleeved mode.

Preferably, in the adjustable device for the fan blade of the radiator, the connecting block is connected with the connecting seat through an adjusting gasket.

Preferably, in the adjustable device for the fan blade of the radiator, the connecting block, the adjusting gasket and the connecting seat are connected through a first bolt.

Preferably, in the adjustable device for the fan blade of the radiator, the connecting base is fixedly connected with the annular sliding block.

Preferably, in the adjustable device for the fan blade of the radiator, the annular slider is connected with the fan hub through a second bolt.

Compared with the prior art, the invention has the following beneficial effects:

according to the detachable fan blade, the distance between the blades and the gap between the top end of each blade and the air guide cover can be conveniently adjusted in a detachable connection mode of the fan blades and the fan hub, so that the design of the fan is facilitated, the research and development cost is reduced, the assembly and disassembly are convenient, and the later maintenance is facilitated;

according to the invention, the distance between the blade bottom connecting block and the blade bottom connecting seat is changed by adjusting the adjusting gasket, so that the adjustment of the gap between the blade top end and the air guide cover can be realized.

Drawings

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

FIG. 2 is a cross-sectional view of the connector block and connector block of the present invention;

FIG. 3 is a schematic view of a spacer according to the present invention;

FIG. 4 is a schematic view of a connecting base structure of the present invention;

FIG. 5 is a schematic view of the assembly of the connecting seat, the connecting block and the blade of the present invention;

FIG. 6 is a partially enlarged view of the annular slider and annular groove of the present invention.

In the figure: 1. a blade; 2. a connecting seat; 3. an annular slider; 4. a fan hub; 5. adjusting the gasket; 6. a first bolt; 7. a second bolt; 8. a nut; 9. a wind scooper; 10. an annular groove; 11. and (4) connecting the blocks.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, a radiator fan blade adjustable device is disclosed, comprising:

a blade 1;

a connecting seat 2;

the fan hub 4 is provided with an annular groove 10 along the circumferential direction;

an annular slide block 3, wherein the annular slide block 3 slides along the circumference of the annular groove 10;

one end of the connecting seat 2 is connected with the blade 1, and the other end of the connecting seat is connected with the annular sliding block 3;

the fan hub 4 is sleeved with an air guide cover 9;

specifically, the annular groove 10 functions to enable the annular slider 3 to slide along the circumference of the annular groove 10 so as to change the spacing between the vanes 1; as shown in fig. 2, in a specific embodiment, a bolt hole is formed in the annular slider 3, and the annular slider 3 is clamped in the annular groove 10, as shown in fig. 6, when the distance is adjusted, the annular slider 3 and the fan hub 4 are fixedly connected through a second bolt 7 and a nut 8, so that the annular slider 3 is fixed on the fan hub 4, and the second bolt 7 is detached if the distance needs to be adjusted; according to the technical scheme, the distance between the blades 1 can be conveniently adjusted through a detachable connection mode of the blades 1 and the fan hub 4; make things convenient for fan design through this kind of mode, reduce the research and development cost, easy dismounting, the later maintenance of being convenient for has solved the clearance undersize between the blade, can lead to the air current disturbance, increases the friction on blade surface, reduces fan efficiency, and the clearance is too big, then can lead to loss of pressure increase.

As shown in fig. 2 to 5, in the present embodiment, in order to control the distance between the top of the blade 1 and the wind scooper 9, the connecting base 2 is connected to the blade 1 by a connecting block 11; the connecting block 11 is connected with the connecting seat 2 through an adjusting gasket 5; connecting block 11 is in inserting people's formula connecting seat 2, and the rethread adjusting shim 5 increases the distance between connecting seat 2 and the connecting block 11 to the blade 1 that the messenger installed on connecting block 11 outwards extends, and then the clearance between adjustment blade 1 and the wind scooper 9, has solved the problem that is difficult for adjusting between the top of blade 1 and the wind scooper 9 through this kind of mode, makes things convenient for the product design later maintenance of being convenient for.

As shown in fig. 5, in the present embodiment, in order to adjust the gap between the top of the blade 1 and the wind scooper 9, the connecting block 11, the adjusting shim 5 and the connecting seat 2 are connected by a first bolt 6.

When in use: in the debugging stage, the distance between the blades 1 is adjusted by moving the annular slide block 3 along the annular groove 10, and the adjusted distance is fixed by the second bolt 7; the clearance between 1 top of blade and the wind scooper 9 is through the distance between adjustment connecting seat 2 and the connecting block 11, and the increase distance is through increasing adjusting shim 5 between the two, and the thickness that adjusting shim 5 was then subtracted to the reduction distance, perhaps changed adjusting shim 5 adjusts, through 6 with three fixed connection of bolt.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.