CN219548969U

CN219548969U - Variable-wind-direction fan

Info

Publication number: CN219548969U
Application number: CN202220358475.8U
Authority: CN
Inventors: 吉家俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2023-08-18
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a variable-wind-direction fan, which comprises a shell and blades arranged on the shell, wherein a plurality of through holes are formed in the side surface of the shell, a rotating shaft is arranged on the blades, and the blades are rotatably arranged in the through holes through the rotating shaft; the shell is fixedly connected with the rotating device through a connecting column; one end of the rotating shaft, which is positioned in the shell, is provided with a cam vertical to the rotating shaft, a rotating pin with an axis offset with the axis of the rotating shaft is vertically arranged on the cam, the rotating pin is connected with a traction device, and the traction direction of the traction device is vertical to the rotation plane of the fan. The rotating device drives the fan to rotate through the connecting column, and simultaneously, the blade angle can be adjusted to adjust the blowing direction of the fan: the traction device pulls the rotating pin on the blade rotating shaft cam to enable the blade to rotate along with the cam. Under the condition of no shutdown, the blowing direction of the fan is changed, and sundry dust covered on the original windward side of the fin water tank is blown off, so that the production efficiency is improved.

Description

Variable-wind-direction fan

Technical Field

The utility model relates to the field of mechanical engineering, in particular to a fan with a variable wind direction.

Background

The engine of the motor vehicle is cooled by adopting a fin water tank radiator which is a key component of a water-cooled engine cooling system, the engine is cooled by forced water circulation, and the fin water tank radiator is a heat exchange device for ensuring the continuous operation of the engine in a normal temperature range.

A fan is arranged beside the fin water tank, and the fin is vertically cooled through the fan. The existing fans are usually fixed-blade fans, and the windward direction of the fin water tank is fixed. When a vehicle with a severe working environment such as a harvester works, the windward side of the fin water tank is often covered by dust and sundries, so that the heat dissipation capacity is reduced. The existing solution is generally to stop and maintain, and after the vehicle stops working, the covering on the fin water tank is cleaned manually. In order to improve the working efficiency, an improvement needs to be provided, so that the wind direction of a fan is changed when a vehicle works, and the fin water tank is dedusted.

Disclosure of Invention

The utility model aims to provide a variable-wind-direction fan, which can change the angle of a blade while working, so that the wind direction of the fan is changed, and the dust removal of a fin water tank is realized.

The utility model is realized by the following technical scheme:

a variable wind direction fan comprises a shell and blades arranged on the shell, wherein a plurality of through holes are formed in the side face of the shell, rotating shafts are arranged on the blades, and the blades are rotatably arranged in the through holes through the rotating shafts; the shell is fixedly connected with the rotating device through a connecting column; one end of the rotating shaft, which is positioned in the shell, is provided with a cam vertical to the rotating shaft, a rotating pin with an axis offset with the axis of the rotating shaft is vertically arranged on the cam, the rotating pin is connected with a traction device, and the traction direction of the traction device is vertical to the rotation plane of the fan.

Further: the traction device comprises a traction block arranged at the center of the shell, an annular groove I is formed in the traction block, a rotating pin on a cam is placed in the groove I of the traction block, the traction block is connected with one end of a traction rod perpendicular to a rotation plane of the fan, a bolt perpendicular to the traction rod is penetrated at the other end of the traction rod, two ends of the bolt are connected with a shifting fork driven by a telescopic rod, and the telescopic direction of the telescopic rod is perpendicular to the rotation plane of the fan.

Further: the telescopic rod is an electronic telescopic rod.

Further: the connecting column is provided with a concentric shaft hole which penetrates through the connecting column, and the traction rod is slidably arranged in the shaft hole; two symmetrical strip-shaped grooves are formed in the cylindrical surface of the connecting column, the strip-shaped grooves penetrate through the connecting column, and two ends of the bolt respectively penetrate through the two strip-shaped grooves and protrude out of the cylindrical surface of the connecting column.

Further: and a second bearing and an annular bearing mounting seat sleeved on the connecting column are further connected between the bolt and the shifting fork, two symmetrical pin holes are formed in the bearing mounting seat, two ends of the bolt extend into the pin holes, an interference fit sleeve of the second bearing inner ring is arranged on the outer ring of the bearing mounting seat, and the shifting fork is connected with the outer ring of the bearing.

Further: the surface of the outer ring of the bearing mounting seat is provided with a groove II, and the inner ring of the bearing II is sleeved in the groove II. And the second bearing and the bearing mounting seat are prevented from sliding.

Further: the through hole of the shell is internally provided with a first bearing, and the rotating shaft of the blade is arranged in the through hole through the first bearing. The rotation of the blade rotating shaft is smoother.

Further: the rotating device is a belt pulley connected with the engine through a belt.

Further: the rotating shaft is biased at one side of the blade close to the air outlet of the fan. When the fan rotates, the blades are tightly attached to one of two ends of the rotating stroke under the action of air flow, so that the blades are prevented from having a centering trend under the action of air flow.

Compared with the prior art, the utility model has the following advantages:

1. in this device, when rotating device passes through spliced pole drive fan rotation, can also realize the adjustment of blade angle to the direction of blowing of adjustment fan: the traction device pulls the rotating pin on the blade rotating shaft cam to enable the blade to rotate along with the cam. Under the condition of no shutdown, the blowing direction of the fan is changed, and sundry dust covered on the original windward side of the fin water tank is blown off, so that the production efficiency is improved.

2. The traction block of the traction device is arranged in the shell, the traction rod is arranged in the connecting column, the installation volume of the device is reduced, the installation space is saved, and the fan is convenient to install in the engine compartment.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic top view of a fork according to the present utility model;

FIG. 3 is a schematic top view of a single blade.

In the figure:

1. a blade; 2. a rotating shaft; 3. a cam; 4. a rotation pin; 5. a housing; 6. a connecting column; 7. a belt pulley; 8. a traction block; 9. a traction rod; 10. a rectangular groove; 11. a plug pin; 12. a bearing mounting seat; 13. a shifting fork; 14. an electronic telescopic cylinder; 15. a first bearing; 16. a second bearing; 17. a groove I; 18. and a groove II.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in the figure:

the utility model provides a variable wind direction fan, includes casing 5 and installs the blade 1 on casing 5, and the side of casing 5 is opened and is had a plurality of through-holes, installs bearing one 15 in the through-hole, is equipped with pivot 2 on the blade 1, and pivot 2 offset is close to fan wind gap one side of blade 1, and blade 1 rotates through pivot 2 and installs in bearing one 15 in the through-hole; the shell 5 is fixedly connected with the belt pulley 7 through a connecting column 6; one end of the rotating shaft 2, which is positioned in the shell 5, is provided with a cam 3 vertical to the rotating shaft 2, and the cam 3 is vertically provided with a rotating pin 4 with an axis offset with the axis of the rotating shaft 2; a traction block 8 is slidably mounted in the shell 5, an annular groove I is engraved on the traction block 8, and the rotating pin 4 is slidably mounted in the groove I; the traction block 8 is connected with one end of a traction rod 9 vertical to the rotation plane of the fan, the other end of the traction rod 9 is penetrated with a plug pin 11 vertical to the traction rod 9, and the traction direction of the traction device is vertical to the rotation plane of the fan.

The connecting column 6 is provided with a concentric shaft hole which penetrates through the connecting column, and the traction rod 9 is slidably arranged in the shaft hole; two symmetrical strip-shaped grooves 10 are formed in the cylindrical surface of the connecting column 6, the strip-shaped grooves 10 penetrate through the connecting column 6, and two ends of a plug 11 penetrate through the two strip-shaped grooves 10 respectively and protrude out of the cylindrical surface of the connecting column 6. The connecting column is sleeved with an annular bearing mounting seat 12, two symmetrical pin holes are formed in the bearing mounting seat 12, and two ends of a bolt 11 extend into the pin holes; a second groove is formed in the surface of the outer ring of the bearing mounting seat 12, the inner ring of the second bearing 16 is sleeved in the second groove, and the inner ring of the second bearing 16 is sleeved on the outer ring of the bearing mounting seat 12 in an interference fit manner; the outer ring of the second bearing 16 is connected with an electronic telescopic rod 14 through a shifting fork 13, the telescopic direction of the electronic telescopic rod 14 is consistent with the axial direction of the traction rod 9, and the electronic telescopic rod 14 is arranged on a fixed mounting frame in an engine compartment; the electronic telescopic rod 14 can be controlled by a switch in a cab directly, or by a timing switch and a timing switch, or by a temperature sensor connected with a fin water tank.

The utility model works when in work:

under normal operation state, the belt pulley 7 drives the shell 5 to rotate through the connecting column 6, and then drives the blades 1 and the belt pulley 7 to rotate in the same direction, and generated air flow dissipates heat of the fin water tank. When dust and sundries covered on the windward side of the fin water tank need to be cleaned, an electric signal is transmitted to the electronic telescopic rod 14, the electronic telescopic rod 14 moves, the second bearing 16 is driven by the shifting fork 13, and then the bearing mounting seat 12 is driven to move; the bearing mounting seat 12 drives the bolt 11 to move in the strip-shaped groove 10 along the axial direction of the connecting column 6, the bolt 11 drives the traction rod 9, and then drives the traction block 8 on the traction rod 9 to move, the traction block 8 pulls the cam 3 to rotate around the axial line of the rotating shaft 2 through the rotating pin 4, and the rotating pin 4 slides in the groove I while rotating around the rotating shaft 2; finally, the blades 1 are driven to rotate around the axis of the rotating shaft 2, after the blades 1 rotate for a certain angle, the wind direction changes, and the covering on the fin water tank is blown off. Therefore, the fin water tank can be cleaned efficiently without stopping.

The signal transmitted to the electronic telescopic rod 14 may be a signal sent by a switch manually controlled in a cab, a signal sent by a timing switch at regular time, or a signal sent when a temperature sensor connected to the fin water tank detects that the temperature is too high.

The foregoing embodiments are merely illustrative of the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, not to limit the scope of the present utility model. All equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A variable wind direction fan comprising a housing (5) and blades (1) mounted on the housing, characterized in that: the side surface of the shell (5) is provided with a plurality of through holes, the blade (1) is provided with a rotating shaft (2), and the blade (1) is rotatably arranged in the through holes through the rotating shaft (2); the shell (5) is fixedly connected with the rotating device through a connecting column (6); the rotating shaft (2) is located at one end inside the shell (5), a cam (3) perpendicular to the rotating shaft (2) is arranged at one end inside the shell, a rotating pin (4) with the axis offset with the axis of the rotating shaft (2) is vertically arranged on the cam (3), the rotating pin (4) is connected with a traction device, and the traction direction of the traction device is perpendicular to the rotation plane of the fan.

2. A variable direction fan according to claim 1, wherein: the traction device comprises a traction block (8) arranged at the center of a shell (5), an annular groove I is formed in the traction block, a rotating pin (4) on a cam (3) is placed in the groove I on the traction block (8), the traction block (8) is connected with one end of a traction rod (9) perpendicular to a fan rotating plane, a plug pin (11) perpendicular to the traction rod (9) is penetrated at the other end of the traction rod (9), two ends of the plug pin (11) are connected with a shifting fork (13) driven by a telescopic rod, and the telescopic direction of the telescopic rod is perpendicular to the rotating plane of the fan.

3. A variable direction fan according to claim 2, wherein: the telescopic rod is an electronic telescopic rod (14).

4. A variable direction fan according to claim 2, wherein: the connecting column (6) is provided with a concentric shaft hole which penetrates through the connecting column, and the traction rod (9) is slidably arranged in the shaft hole; two symmetrical strip-shaped grooves (10) are formed in the cylindrical surface of the connecting column (6), the strip-shaped grooves (10) penetrate through the connecting column (6), and two ends of the plug pin (11) penetrate through the two strip-shaped grooves (10) respectively and protrude out of the cylindrical surface of the connecting column (6).

5. A variable direction fan according to claim 4, wherein: the novel high-speed hydraulic cylinder is characterized in that a second bearing (16) and an annular bearing mounting seat (12) sleeved on the connecting column (6) are further connected between the bolt (11) and the shifting fork (13), two symmetrical pin holes are formed in the bearing mounting seat (12), two ends of the bolt (11) extend into the pin holes, an inner ring of the second bearing (16) is in interference fit with the outer ring of the bearing mounting seat (12), and the shifting fork (13) is connected with the outer ring of the second bearing (16).

6. A variable direction fan according to claim 5, wherein: the surface of the outer ring of the bearing mounting seat (12) is provided with a second groove, and the inner ring of the second bearing (16) is sleeved in the second groove.

7. A variable direction fan according to claim 1, wherein: a first bearing (15) is arranged in a through hole on the shell (5), and the rotating shaft (2) of the blade (1) is arranged in the through hole through the first bearing (15).

8. A variable direction fan according to claim 1, wherein: the rotating device is a belt pulley (7) connected with the engine through a belt.

9. A variable direction fan according to claim 1, wherein: the rotating shaft (2) is biased at one side of the blade (1) close to the air outlet of the fan.