Air inlet amount adjusting device of winnowing machine

Abstract

The utility model discloses an air inlet volume adjusting device of a winnowing machine, which comprises a central choke plate and two side choke plates which are rotationally connected at the position of an air inlet of an air blower connected with a winnowing machine main body, the side choke plates on the two sides of the center choke plate are rotationally connected with the air blower through side rotating shafts vertically arranged on the sides, close to the center choke plate, of the side choke plates, the upper surface of the protective cover is fixedly connected with a positioning gear ring located outside the center rotating shaft and the side rotating shafts, and a positioning rod with the lower end movably clamped to the positioning gear ring is hinged to the hand wheel. The rotating angle of the hand wheel is compared through the positioning gear ring, so that the rotating angle of the center choke plate and the rotating angle of the side choke plate are visually judged, and the air volume corresponding to each gear of the positioning gear ring is recorded according to the actual winnowing effect, so that the air volume can be quickly and accurately controlled in the later period of air volume adjustment; and the central choke plate and the side choke plates on the two sides can be independently adjusted or cooperatively adjusted together, so that the air volume in a wider range can be obtained, and the air separation device is suitable for more air separation scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of wind screening equipment, in particular to an air inlet volume regulating device for a wind separator. Background Art

[0002] The air separator uses air as a sorting medium to sort solid particles according to density and size differences. When the air separator screens different types of materials, different wind forces are required. Therefore, an air inlet volume adjustment device is required to adjust the air inlet volume of the air separator.

[0003] A common air inlet volume adjustment device for an air separator drives an air baffle plate in the air inlet of the blower to rotate by turning a handle, thereby adjusting the size of the air inlet. The air baffle plate is generally composed of multiple baffles. When the handle is turned, the multiple air baffle plates rotate and adjust synchronously. The maximum air inlet volume of the blower is in the vertical position. In the prior art, most blowers that manually adjust the air volume of an air separator rely on subjective human judgment of the air volume, and have no objective basis for judgment. This can easily cause the air volume to be too large or too small, resulting in excessive or insufficient air selection, and needs to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an air inlet volume adjustment device for an air separator, which is used to solve the problem that the blowers in the prior art that manually adjust the air volume of the air separator mostly rely on human subjective judgment of the air volume, which can easily cause the air volume to be too large or too small, resulting in excessive or insufficient air separation.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The air inlet volume regulating device of the air separator comprises a central air blocker and two side air blockers which are rotatably connected at the air inlet position of the blower connected to the air separator body, wherein the central air blocker is rotatably connected to the blower via a central rotating shaft vertically arranged on the central axis, and the side air blockers on both sides of the central air blocker are rotatably connected to the blower via side rotating shafts vertically arranged on one side of the side air blocker close to the central air blocker, a driven gear is fixedly installed on the top of the side rotating shaft on one side of the central air blocker, and a driven gear is fixed on the side rotating shaft on the other side of the central air blocker A driving sprocket is connected, and a protective cover is provided on the top of the blower which is movably sleeved on the surface of the side rotating shaft and the center rotating shaft near the top. A driving gear meshing with the driven gear and a driven sprocket connected to the driving sprocket through a chain transmission are installed inside the protective cover. The tops of the center rotating shaft and the side rotating shafts with the driving gears are fixedly connected with hand wheels, and a positioning gear ring located outside the center rotating shaft and the side rotating shaft is fixedly connected to the upper surface of the protective cover. A positioning rod is hinged on the handwheel, and the lower end of which is movably clamped on the positioning gear ring.

[0007] Preferably, the two side wind blocking plates have the same shape and size and are symmetrically arranged on both sides of the central wind blocking plate.

[0008] Preferably, the circular diameter formed by the two side air blocking plates and the central air blocking plate is not less than the circular diameter of the air inlet of the blower.

[0009] Preferably, the opposing surfaces of the central air blocking plate and the side air blocking plates on both sides are smooth curved surfaces and the distance between the central air blocking plate and the side air blocking plates on both sides does not exceed 0.5CM.

[0010] Preferably, the positioning gear ring is a circular ring with slots equidistantly arranged on the circumference, and data marks with increasing values ​​are arranged on two adjacent slots.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model compares the rotation angle of the handwheel by positioning the gear ring, so as to intuitively judge the rotation angle of the center air choke plate and the side air choke plate, and records the air volume corresponding to each gear position of the positioning gear ring according to the actual air selection effect, so as to facilitate fast and accurate control when adjusting the air volume in the later stage. The center air choke plate and the side air choke plates on both sides can be adjusted separately or together, so as to obtain a wider range of air volumes and adapt to more air selection scenarios. It has strong practicality. The utility model has a simple structure and is easy to use. It is suitable for popularization and use, and solves the problem that most of the blowers in the prior art that manually adjust the air volume of the air selection machine rely on human subjective judgment of the air volume, which may cause the air volume to be too large or too small, resulting in excessive or insufficient air selection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the blower of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the central wind blocking plate and the side wind blocking plate of the utility model.

[0016] In the figure: 1. air separator body; 2. blower; 3. central air choke; 301. central rotating shaft; 4. side air choke; 401. side rotating shaft; 402. driven gear; 403. driving sprocket; 5. driving gear; 6. chain; 7. protective cover; 8. hand wheel; 801. positioning rod; 9. positioning gear ring; 10. driven sprocket. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-3 As shown, the utility model provides a technical solution for an air inlet volume regulating device for an air separator: the air inlet volume regulating device for an air separator comprises a central air blocker 3 and two side air blockers 4 which are rotatably connected at the air inlet position of a blower 2 connected to a main body 1 of the air separator, the two side air blockers 4 having the same shape and size and symmetrically arranged on both sides of the central air blocker 3, the circular diameter formed by the two side air blockers 4 and the central air blocker 3 is not less than the circular diameter of the air inlet of the blower 2, the opposing surfaces of the central air blocker 3 and the side air blockers 4 on both sides are smooth curved surfaces and the distance between the central air blocker 3 and the side air blockers 4 on both sides does not exceed 0.5CM, and the rotation of the central air blocker 3 and the two side air blockers 4 does not affect each other;

[0019] The central air choke plate 3 is rotatably connected to the blower 2 via a central rotating shaft 301 vertically arranged on the central axis, and the side air choke plates 4 on both sides of the central air choke plate 3 are rotatably connected to the blower 2 via side rotating shafts 401 vertically arranged on the side air choke plates 4 close to the central air choke plate 3. A driven gear 402 is fixedly installed on the top of the side rotating shaft 401 located on one side of the central air choke plate 3, and a driving sprocket 403 is fixedly connected to the side rotating shaft 401 located on the other side of the central air choke plate 3. A protective cover 7 movably sleeved on the side rotating shaft 401 and the surface of the central rotating shaft 301 close to the top is arranged on the top of the blower 2, and a driving gear 5 meshing with the driven gear 402 and a driven sprocket 10 connected to the driving sprocket 403 through a chain 6 are installed inside the protective cover 7;

[0020] The tops of the central rotating shaft 301 and the side rotating shaft 401 provided with the driving sprocket 403 are fixedly connected with a handwheel 8, the upper surface of the protective cover 7 is fixedly connected with a positioning gear ring 9 located outside the central rotating shaft 301 and the side rotating shaft 401, and a positioning rod 801 is hinged on the handwheel 8, and the lower end of the positioning gear ring 9 is movably connected to the positioning gear ring 9. The positioning gear ring 9 is a circular ring with slots equidistantly arranged on the circumference, and data marks with increasing values ​​are arranged on two adjacent slots.

[0021] Working principle:

[0022] The angle of the central air baffle plate 3 is adjusted by turning the corresponding hand wheel 8 of the central rotating shaft 301, and the angle of the side air baffle plate 4 is adjusted by turning the corresponding hand wheel 8 of the side rotating shaft 401. The driving sprocket 403 below the hand wheel 8 drives the side air baffle plate 4 to rotate through the chain 6, the driven sprocket 10, the driving gear 5 and the driven gear 402 to adjust the air volume. The angles of the central air baffle plate 3 and the side air baffle plate 4 are fixed by the engagement of the positioning rod 801 in the positioning gear ring 9. The rotation angle of the hand wheel 8 is compared with the positioning gear ring 9 to intuitively judge the rotation angle of the central air baffle plate 3 and the side air baffle plate 4. The air volume corresponding to each gear of the positioning gear ring 9 is recorded according to the actual air selection effect, so that the air volume can be quickly and accurately controlled when adjusting the air volume at a later time.

[0023] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air inlet volume regulating device for an air separator, comprising a central air blocking plate (3) and two side air blocking plates (4) rotatably connected at the air inlet position of a blower (2) connected to a main body (1) of the air separator, characterized in that: The central air blocking plate (3) is rotationally connected to the blower (2) via a central rotating shaft (301) vertically arranged on the central axis; the side air blocking plates (4) on both sides of the central air blocking plate (3) are rotationally connected to the blower (2) via side rotating shafts (401) vertically arranged on one side of the side air blocking plate (4) close to the central air blocking plate (3); a driven gear (402) is fixedly mounted on the top of the side rotating shaft (401) located on one side of the central air blocking plate (3); a driving sprocket (403) is fixedly connected to the side rotating shaft (401) located on the other side of the central air blocking plate (3); and a sprocket (403) is movably sleeved between the side rotating shaft (401) and the central air blocking plate (3). A protective cover (7) is provided on the surface of the rotating shaft (301) near the top, wherein a driving gear (5) meshing with a driven gear (402) and a driven sprocket (10) connected to a driving sprocket (403) via a chain (6) are installed inside the protective cover (7), and a hand wheel (8) is fixedly connected to the top of the central rotating shaft (301) and the side rotating shaft (401) provided with the driving sprocket (403), and a positioning ring gear (9) located outside the central rotating shaft (301) and the side rotating shaft (401) is fixedly connected to the upper surface of the protective cover (7), and a positioning rod (801) is hingedly connected to the hand wheel (8), and the lower end of the positioning rod (801) is movably connected to the positioning ring gear (9).

2. The air inlet volume regulating device for an air separator according to claim 1, characterized in that: The two side wind blocking plates (4) have the same shape and size and are symmetrically arranged on both sides of the central wind blocking plate (3).

3. The air inlet volume regulating device for an air separator according to claim 1, characterized in that: The diameter of the circle formed by the two side air blocking plates (4) and the central air blocking plate (3) is not less than the diameter of the circle of the air inlet of the blower (2).

4. The air inlet volume regulating device for an air separator according to claim 1, characterized in that: The opposing surfaces of the central wind blocking plate (3) and the side wind blocking plates (4) on both sides are smooth curved surfaces, and the distance between the central wind blocking plate (3) and the side wind blocking plates (4) on both sides does not exceed 0.5 cm.

5. The air inlet volume regulating device for an air separator according to claim 1, characterized in that: The positioning gear ring (9) is a circular ring with slots arranged at equal intervals on the circumference, and data marks with increasing values ​​are arranged on two adjacent slots.

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