A pneumatic self-adjusting angle fan

Abstract

The utility model discloses a kind of pneumatic self-adjusting angle fan, belong to fan structure technical field, including cylinder, pull rod, angle adjustment subassembly, fan main shaft, fan main shaft rotating power component and blade shaft, the output end of cylinder is connected with the bottom end transmission of pull rod, fan main shaft is hollow structure, the top end of pull rod is fixedly connected after penetrating fan main shaft with jacking end cover, jacking end cover is fixedly connected on flange, angle adjustment subassembly is connected on flange, angle adjustment subassembly is also connected with the end of blade shaft, blade is fixedly connected on blade shaft, fan main shaft is driven by fan main shaft rotating power component, cylinder is electrically connected with PLC controller. The utility model drives the movement of angle adjustment subassembly using pneumatic drive mode, to realize the adjustment of fan blade angle, reduce artificial operation.

Description

Technical Field

[0001] This utility model relates to the field of fan structure technology, and in particular to a pneumatic self-adjusting angle fan. Background Technology

[0002] Existing angle-adjusting fans require manual adjustment after the fan has stopped, necessitating manual climbing for adjustment. This interruption of medium cooling is detrimental to continuous production line operation, and manual adjustment at height poses significant safety risks and requires skilled personnel. Existing patent CN202194861U discloses a synchronous angle-adjusting air cooler fan that uses a double-nut adjustment linkage to adjust the effective length, allowing for the consistency of the initial installation angle of each blade. However, this patent still requires manual adjustment.

[0003] Therefore, those skilled in the art need to provide a pneumatic self-adjusting angle fan that drives the angle adjustment component to move through a pneumatic drive, thereby achieving adjustment of the fan blade angle. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatic self-adjusting angle fan that uses a pneumatic drive to move the angle adjustment component, thereby adjusting the angle of the fan blades and reducing manual operation.

[0005] To achieve the above objectives, this utility model provides a pneumatic self-adjusting angle fan, including a cylinder, a pull rod, an angle adjustment assembly, a fan main shaft, a fan main shaft rotation power assembly, and an impeller. The output end of the cylinder is connected to the bottom end of the pull rod. The fan main shaft has a hollow structure. The top end of the pull rod passes through the fan main shaft and is fixedly connected to a lifting end cover. The lifting end cover is fixedly connected to a flange. An angle adjustment assembly is connected to the flange. The angle adjustment assembly is also connected to one end of the impeller. Blades are fixedly connected to the impeller. The fan main shaft is driven by the fan main shaft rotation power assembly. The cylinder is electrically connected to a PLC controller.

[0006] Preferably, a hub is fixedly connected to the top of the main shaft of the fan, and an impeller connecting seat is provided on the top of the hub, with the impeller rotatably connected in the impeller connecting seat.

[0007] Preferably, the pull rod passes through the main shaft and hub of the fan in sequence and is then fixedly connected to the bottom of the lifting end cover.

[0008] Preferably, the angle adjustment assembly includes a first connecting rod, a second connecting rod, and a third connecting rod. One end of the first connecting rod is fixedly connected to the flange, the other end of the first connecting rod is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to one end of the third connecting rod, and the other end of the third connecting rod is fixedly connected to the side wall of one end of the blade shaft.

[0009] Preferably, the fan main shaft rotation power assembly includes a motor, a drive pulley, a driven pulley, a synchronous belt, and a motor mounting base. The motor is mounted on the motor mounting base, the output shaft of the motor is fixedly connected to the drive pulley, the driven pulley is fixedly connected to the fan main shaft, and a synchronous belt drives between the drive pulley and the driven pulley.

[0010] Preferably, an indicator head is provided on the outer side of the bottom of the pull rod, a protective cover is connected to the top of the cylinder, an angle scale is provided on the inner wall of the protective cover and on the side near the pull rod, the indicator head points to the angle scale, and one side of the protective cover is provided as a transparent cover.

[0011] The advantages and positive effects of the pneumatic self-adjusting angle fan described in this utility model are:

[0012] The PLC controller of this utility model controls the lifting and lowering of the pull rod by controlling the stroke of the cylinder. The pull rod drives the angle adjustment component to move, thereby changing the blade installation angle. There is no need to stop the machine or have people climb up. The movement of the angle adjustment component is driven by a pneumatic method, which reduces manual operation.

[0013] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a pneumatic self-adjusting angle fan according to the present invention;

[0015] Figure 2 This is a schematic diagram of the top structure of the fan of this utility model;

[0016] Figure 3 This is an enlarged view of the angle adjustment component of this utility model;

[0017] Figure 4 This is a schematic diagram of the cylinder and tie rod structure of this utility model.

[0018] Figure Labels

[0019] 1. Cylinder; 2. Tie rod; 3. Fan main shaft; 4. Impeller; 5. Blade; 6. Flange; 7. Lifting end cover; 8. Hub; 9. Impeller connecting seat; 10. Angle adjustment assembly; 101. Connecting rod one; 102. Connecting rod two; 103. Connecting rod three; 11. Fan main shaft rotation power assembly; 111. Motor; 112. Drive pulley; 113. Driven pulley; 114. Synchronous belt; 115. Motor mounting base; 12. Protective cover. Detailed Implementation

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1-4 As shown, a pneumatic self-adjusting angle fan includes a cylinder 1, a pull rod 2, an angle adjustment component 10, a fan main shaft 3, a fan main shaft rotation power component 11, and an impeller. The output end of the cylinder 1 is connected to the bottom end of the pull rod 2. The fan main shaft 3 is a hollow structure. The top end of the pull rod 2 passes through the fan main shaft 3 and is fixedly connected to the lifting end cover 7. The lifting end cover 7 is fixedly connected to the flange 6. The angle adjustment component 10 is connected to the flange 6. The angle adjustment component 10 is also connected to one end of the impeller 4. Blades 5 are fixedly connected to the impeller 4. The fan main shaft 3 is driven by the fan main shaft rotation power component 11. The cylinder 1 is electrically connected to a PLC controller.

[0024] A hub 8 is fixedly connected to the top of the main shaft of the fan. A blade shaft connecting seat 9 is provided on the top of the hub 8. The blade shaft 4 is rotatably connected in the blade shaft connecting seat 9.

[0025] The tie rod 2 passes through the main shaft 3 and hub 8 of the fan in sequence and is then fixedly connected to the bottom of the lifting end cover 7.

[0026] The angle adjustment assembly 10 includes a first connecting rod 101, a second connecting rod 102, and a third connecting rod 103. One end of the first connecting rod 101 is fixedly connected to the flange 6. The other end of the first connecting rod 101 is hinged to one end of the second connecting rod 102. The other end of the second connecting rod 102 is hinged to one end of the third connecting rod 103. The other end of the third connecting rod 103 is fixedly connected to the side wall of one end of the blade shaft 4.

[0027] The fan main shaft rotation power assembly 11 includes a motor, a drive pulley 112, a driven pulley 113, a synchronous belt 114, and a motor mounting base 115. The motor 111 is mounted on the motor mounting base 115. The output shaft of the motor 111 is fixedly connected to the drive pulley 112. The driven pulley 113 is fixedly connected to the fan main shaft 3. The synchronous belt 114 is used for transmission between the drive pulley 112 and the driven pulley 113.

[0028] An indicator head is provided on the outer side of the bottom of the pull rod 2. A protective cover 12 is connected to the top of the cylinder 1. An angle scale is provided on the inner wall of the protective cover 12, near the pull rod 2. The indicator head points to the angle scale. One side of the protective cover 12 is a transparent cover. Specifically, the angle scale makes it easy for people to observe the rotation angle of the blade 5.

[0029] The usage process of this utility model is as follows:

[0030] During operation, users set the blade rotation angle on the display screen. The PLC controller controls the stroke of cylinder 1 to control the lifting and lowering of pull rod 2. The lifting and lowering of pull rod 2 drives the angle adjustment component 10 to move. The angle adjustment component 10 is a crank-connecting rod mechanism. The lifting and lowering of pull rod 2 drives connecting rod 101 to move up and down. Connecting rod 101 drives connecting rod 102 to move. Connecting rod 102 drives connecting rod 103 to rotate. Connecting rod 103 drives the blade shaft 4 to rotate, thereby realizing the adjustment of the blade 5 rotation angle.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A pneumatic self-adjusting angle fan, characterized in that: The device includes a cylinder, a tie rod, an angle adjustment assembly, a fan main shaft, a fan main shaft rotation power assembly, and an impeller. The output end of the cylinder is connected to the bottom end of the tie rod. The fan main shaft has a hollow structure. The top end of the tie rod passes through the fan main shaft and is fixedly connected to a lifting end cover. The lifting end cover is fixedly connected to a flange. An angle adjustment assembly is connected to the flange and is also connected to one end of the impeller. Blades are fixedly connected to the impeller. The fan main shaft is driven by the fan main shaft rotation power assembly. The cylinder is electrically connected to a PLC controller.

2. The pneumatic self-adjusting angle fan according to claim 1, characterized in that: A hub is fixedly connected to the top of the main shaft of the wind turbine, and an impeller connecting seat is provided on the top of the hub. The impeller is rotatably connected in the impeller connecting seat.

3. A pneumatic self-adjusting angle fan according to claim 2, characterized in that: The tie rod passes through the main shaft and hub of the wind turbine in sequence and is then fixedly connected to the bottom of the lifting end cover.

4. A pneumatic self-adjusting angle fan according to claim 3, characterized in that: The angle adjustment assembly includes connecting rod one, connecting rod two, and connecting rod three. One end of connecting rod one is fixedly connected to the flange, the other end of connecting rod one is hinged to one end of connecting rod two, the other end of connecting rod two is hinged to one end of connecting rod three, and the other end of connecting rod three is fixedly connected to the side wall of one end of the blade shaft.

5. A pneumatic self-adjusting angle fan according to claim 2, characterized in that: The fan main shaft rotation power assembly includes a motor, a drive pulley, a driven pulley, a synchronous belt, and a motor mounting base. The motor is mounted on the motor mounting base. The output shaft of the motor is fixedly connected to the drive pulley. The driven pulley is fixedly connected to the fan main shaft. A synchronous belt drives the drive pulley and the driven pulley together.

6. A pneumatic self-adjusting angle fan according to claim 1, characterized in that: An indicator head is provided on the outer side of the bottom of the pull rod, a protective cover is connected to the top of the cylinder, an angle scale is provided on the inner wall of the protective cover and on the side near the pull rod, the indicator head points to the angle scale, and one side of the protective cover is a transparent cover.

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