CN219639105U - Fan pipeline air quantity adjusting device - Google Patents

Abstract

The utility model discloses a fan pipeline air quantity adjusting device which comprises a frame, wherein two blades are arranged in the frame, the side wall of the frame is rotationally connected with an outer shaft through a bearing, the other blade is arranged on the lower surface of an inner shaft, the two blades are symmetrically arranged by taking the inner shaft as a center, the outer wall of the frame is fixedly connected with a base, the top of the base is provided with an air cylinder, the movable end of the air cylinder is fixedly connected with a slip ring, both sides of the inner wall of the slip ring are respectively and slidably connected with a curved rod, and the two curved rods are respectively fixedly connected with one side of the upper surfaces of the outer shaft and the inner shaft. According to the utility model, the two blades are respectively driven by the outer shaft and the inner shaft, when the air cylinder drives the sliding ring to longitudinally move, the sliding ring can respectively drive the two curved rods to oppositely rotate, and the outer shaft and the inner shaft which oppositely rotate can drive the two blades to mutually approach or separate, so that the two blades can form a corresponding rotating state, namely, the blades with larger wind resistance are turned to the other side, the wind flow direction is more gentle, and the pressure of the fan is reduced.

Description

Fan pipeline air quantity adjusting device

Technical Field

The utility model relates to the technical field of pipeline air quantity control, in particular to a fan pipeline air quantity adjusting device.

Background

The humidifying tower of the cement plant has the functions of cooling, dedusting, changing the specific resistance of dust and improving the dust collection efficiency. The humidifying tower is connected with the fan through a pipeline, the pipeline can be connected with a plurality of production devices and supply air to the production devices, a fan pipeline air quantity adjusting device, also called a shutter valve, is required to be installed at the branch pipeline, and the air quantity conveyed by the pipeline is controlled by rotating blades in the shutter valve. The shutter valve (circular) has advantages of small opening and closing moment, sensitive action, reliable performance, large caliber, light weight and the like, but the branch pipelines are mostly vertically connected with the main pipeline, the two sides of the existing shutter valve which are mostly provided with a rotating shaft are fixedly provided with blades, when the blades rotate, the blades not only control the size of the air port, but also generate larger resistance to wind, and when the wind resistance is larger, the long-time use can cause damage to the fan, so that the service life is influenced.

Disclosure of Invention

In order to solve the problems, namely, the problems proposed by the background technology, the utility model provides a fan pipeline air volume adjusting device, which comprises a frame, wherein two blades are arranged in the frame, the side wall of the frame is rotationally connected with an outer shaft through a bearing, an inner shaft is sleeved in an inner cavity of the outer shaft, one blade is arranged on the upper surface of the outer shaft, the other blade is arranged on the lower surface of the inner shaft, the two blades are symmetrically arranged by taking the inner shaft as a center, the outer wall of the frame is fixedly connected with a base, the top of the base is provided with an air cylinder, the movable end of the air cylinder is fixedly connected with a sliding ring, two curved rods are connected with two sides of the inner wall of the sliding ring in a sliding manner, and the two curved rods are fixedly connected to one side of the upper surfaces of the outer shaft and the inner shaft respectively.

Preferably, one side of the outer shaft and one side of the inner shaft, which correspond to the outer shaft, are fixedly connected with a group of fixing rods, and the two groups of fixing rods are fixedly connected to the interiors of the two blades respectively.

Preferably, one side surface of the two groups of fixing rods is in the same plane with the axial lead of the inner shaft.

Preferably, the outer wall of the frame is fixedly connected with a bracket, and the bracket is rotationally connected with one end of the inner shaft through a bearing.

Preferably, the two sides of the top of the base are fixedly connected with limiting rods, the outer walls of the limiting rods are connected with limiting cylinders in a sliding mode, and the two limiting cylinders are fixedly connected to the two sides of the bottom of the outer wall of the slip ring respectively.

Preferably, flanges are fixedly connected to two ends of the frame.

The beneficial technical effects of the utility model are as follows: when the sliding ring is driven by the air cylinder to longitudinally move, the sliding ring can respectively drive the two curved rods to oppositely rotate, and then the outer shaft and the inner shaft which oppositely rotate can drive the two blades to mutually approach or separate, so that the two blades can form a corresponding rotating state, namely the blades with larger wind resistance turn to the other side, the flow direction of wind is flatter, and the pressure of the fan is reduced.

Drawings

Fig. 1 shows a schematic elevational cross-sectional structure of the present utility model.

Fig. 2 shows an enlarged view of the structure of fig. 1 at a of the present utility model.

Fig. 3 shows a schematic side view of the utility model.

Fig. 4 shows a schematic view of a part connection structure of the present utility model.

Reference numeral 1, frame, 2, outer axle, 3, interior axle, 4, blade, 5, base, 6, cylinder, 7, sliding ring, 8, curved bar, 9, dead lever, 10, support, 11, gag lever post, 12, spacing section of thick bamboo, 13, flange.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

The utility model provides a fan pipeline air quantity adjusting device, which comprises a frame 1, wherein two blades 4 are arranged in the frame 1, the arc edges of the two blades 4 are matched with the inner wall of the frame 1, the side wall of the frame 1 is rotatably connected with an outer shaft 2 through a bearing, the inner cavity of the frame 1 is divided into two parts by the outer shaft 2, the inner shaft 3 is sleeved in the inner cavity of the outer shaft 2, one side of the outer shaft 2 in the frame 1 is opened, the opening angle is larger than 120 degrees, so that the inner shaft 3 can be exposed at one part of the inner cavity of the frame 1 and used for being connected with the blades 4, a certain margin is reserved when the blades 4 rotate, one of the blades 4 is arranged on the upper surface of the outer shaft 2, the other blade 4 is arranged on the lower surface of the inner shaft 3, the two blades 4 are nearly semicircular, the inner cavity of the frame 1 can rotate, the two blades 4 can simultaneously seal the inner cavity of the frame 1, the two blades 4 are symmetrically arranged by taking the inner wall of the frame 1 as a center, a base 5 is welded on the outer wall of the frame 1, an air cylinder 6 is arranged at the top of the base 5, the air cylinder 6 is fixed on the air cylinder 6, the working position of the air cylinder 6 is convenient for the inner shaft 3, one part of the inner shaft 3 can be exposed at one part of the inner cavity of the frame 1, the inner shaft 4 is used for being connected with the blades 4, a certain margin is reserved when the blades 4 rotate, one side of the blades 4 is provided with the inner shaft 6 is provided with an inner shaft 6, two sliding ring 6 is respectively, two ends 7 are respectively, two sliding rings 7 are respectively, two sliding ends 7 are respectively, and 8 are respectively connected with two sliding shafts 7 are respectively, and 8 sliding ends are respectively, and 8 sliding on the inner shafts 7 are respectively, and 8 sliding ends are respectively, and 8 sliding and 8 can respectively, and can be connected with the sliding and 8.

Specifically, a group of fixing rods 9 are welded on the corresponding sides of the outer shaft 2 and the inner shaft 3, the two groups of fixing rods 9 are welded inside the two blades 4 respectively, and the fixing rods 9 serve as connecting pieces of the two shafts and the blades 4, so that the use strength of the blades 4 is improved.

Specifically, when the two groups of fixing rods 9 drive the blades 4 to be close to each other, the two groups of fixing rods 9 can achieve a nearly parallel fitting state, and the maximum flow rate of the tuyere is increased.

Specifically, the outer wall of the frame 1 is fixedly connected with a bracket 10, the bracket 10 is rotatably connected to one end of the inner shaft 3 through a bearing, the bracket 10 can fix the rotation position of the inner shaft 3, and the inner shaft 3 is prevented from transversely moving in the inner cavity of the outer shaft 2 during operation.

Specifically, the two sides of the top of the base 5 are fixedly connected with the limiting rods 11, the outer wall of the limiting rods 11 is slidably connected with the limiting cylinders 12, the two limiting cylinders 12 are fixedly connected to the two sides of the bottom of the outer wall of the sliding ring 7 respectively, and the sliding limiting structure formed between the limiting rods 11 and the limiting cylinders 12 can enable the sliding ring 7 to move stably longitudinally, so that steering movement of the sliding ring is avoided, and connection between the sliding ring 7 and the bent rod 8 is affected.

Specifically, the flanges 13 are fixedly connected to the two ends of the frame 1, and the flange 13 facilitates connection between the main pipeline and the branch pipeline.

Working principle: after the fan works, the air cylinder 6 is started, the air cylinder 6 downwards pulls the slip ring 7, the slip ring 7 can drive the outer shaft 2 and the inner shaft 3 to rotate in opposite directions through sliding connection with the two curved rods 8, at the moment, the two blades 4 are close to each other, an air gap is formed between the frame 1 and the blades 4, the size of the air gap depends on the rotation angle of the two blades 4, the two blades 4 can be mutually attached by utilizing the characteristic that one side surface of the two groups of fixing rods 9 is in the same plane with the axial lead of the inner shaft 3, and then the maximum air quantity is conveyed, and the two blades 4 which are independently controlled are more gentle in flow direction.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model, and in particular, the technical features set forth in the various embodiments may be combined in any manner so long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

In the description of the present utility model, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate a direction or a positional relationship, are based on the direction or the positional relationship shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to 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.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (6)

1. The utility model provides a fan pipeline air quantity adjusting device, includes frame (1), be equipped with two blade (4), its characterized in that in frame (1): the utility model discloses a motor, including frame (1), including outer axle (2), inner chamber cover of outer axle (2), one of them blade (4) set up in the upper surface of outer axle (2), another blade (4) set up in the lower surface of inner axle (3), two blade (4) set up with interior axle (3) as central symmetry, the outer wall rigid coupling of frame (1) has base (5), cylinder (6) are installed at the top of base (5), the loose end rigid coupling of cylinder (6) has sliding ring (7), the equal sliding connection of inner wall both sides of sliding ring (7) has curved bar (8), two curved bar (8) rigid coupling are in outer axle (2) and inner axle (3) upper surface one side respectively.

2. The fan duct air volume adjusting device according to claim 1, wherein: one side of the outer shaft (2) corresponding to one side of the inner shaft (3) is fixedly connected with a group of fixing rods (9), and the two groups of fixing rods (9) are fixedly connected to the interiors of the two blades (4) respectively.

3. The fan duct air volume adjusting device according to claim 2, wherein: one side surface of the two groups of fixing rods (9) is in the same plane with the axial lead of the inner shaft (3).

4. The fan duct air volume adjusting device according to claim 1, wherein: the outer wall of the frame (1) is fixedly connected with a bracket (10), and the bracket (10) is rotatably connected with one end of the inner shaft (3) through a bearing.

5. The fan duct air volume adjusting device according to claim 1, wherein: limiting rods (11) are fixedly connected to the two sides of the top of the base (5), limiting cylinders (12) are slidably connected to the outer walls of the limiting rods (11), and the two limiting cylinders (12) are fixedly connected to the two sides of the bottom of the outer wall of the slip ring (7) respectively.

6. The fan duct air volume adjusting device according to claim 1, wherein: flanges (13) are fixedly connected to two ends of the frame (1).