Quick blade adjusting structure

Abstract

A quick blade adjusting structure relates to the technical field of cooling tower appliances and comprises a blade pressing plate, a plurality of fan blades are circumferentially arranged on the blade pressing plate in a surrounding manner, each fan blade rotates by taking a horizontal line as a rotating shaft to adjust the angle, an adjusting plate is vertically lifted on the upper surface of the blade pressing plate, and a main adjusting rod is hinged to the adjusting plate. And the lower end part of the main adjusting rod is hinged with the connecting end of the fan blade. The fan blade mechanism solves the problems that in the prior art, a fan blade mechanism is fixed through an upper pressing plate and a lower pressing plate, the angle of a fan blade is guaranteed through the clamping force of a fixing bolt, and the angle changes and is difficult to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling tower appliances, in particular to a blade rapid adjustment structure. Background Art

[0002] Fans are equipment normally used in industrial equipment. During use and installation, they often face problems such as insufficient air volume, vibration, and low fan efficiency caused by inconsistent and changing angles of fan blades. The fan needs to be shut down for adjustment during the adjustment process, which wastes a lot of time and manpower, resulting in great waste and loss of economic benefits.

[0003] like Figure 3 As shown, the prior art discloses a universal structure for adjusting fan blades, including a blade upper pressure plate 100, a fixing bolt 200, a fan blade 300, a fixing nut 400 and a blade lower pressure plate 500; the existing fan blade 300 is fixed by the blade upper pressure plate 100 and the blade lower pressure plate 500, and the angle of the fan blade is ensured by the clamping force of the fixing bolt 200.

[0004] As the existing devices are used, the shortcomings of the technology are gradually exposed, mainly in the following aspects:

[0005] The existing fan blade mechanism is fixed by upper and lower pressure plates, and the angle of the fan blade is ensured by the clamping force of the fixing bolts, which has the problem of angle variation and difficulty in adjustment.

[0006] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] In view of the defects in the prior art, the utility model provides a blade quick adjustment structure to solve the problem that the fan blade mechanism in the traditional technology is fixed by upper and lower pressure plates, and the angle of the fan blade is ensured by the clamping force of the fixing bolts, resulting in angle changes and difficulty in adjustment.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The blade quick adjustment structure includes a blade pressure plate, and a plurality of fan blades are circumferentially arranged on the upper edge of the blade pressure plate. Each fan blade is rotated to adjust the angle with a horizontal line as the rotation axis. An adjustment plate is vertically raised and lowered on the upper surface of the blade pressure plate, and a main adjustment rod is hinged on the adjustment plate. The lower end of the main adjustment rod is hinged to the connecting end of the fan blade.

[0010] As an optimized solution, the connecting end of the fan blade is further hinged with an auxiliary adjustment rod, and the other end of the auxiliary adjustment rod is slidably connected to the main adjustment rod.

[0011] As an optimized solution, a bearing is provided on the blade pressure plate corresponding to each of the fan blades, and the connecting end of the fan blade is rotatably mounted on the bearing.

[0012] As an optimized solution, a bearing seat is fixedly connected to the blade pressure plate, and the bearing is fixed in the bearing seat.

[0013] As an optimized solution, the connecting end of the fan blade is fixedly connected to a connecting plate located on one side of the bearing seat.

[0014] As an optimized solution, an upper hinged protrusion is fixedly connected to the lower surface of the adjustment plate, and the upper end portion of the main adjustment rod is hinged to the hinged protrusion.

[0015] As an optimized solution, two lower hinged protrusions are fixedly connected to the outer wall of the connecting plate along the circumferential direction, and the lower end of the main adjustment rod and the hinged end of the auxiliary adjustment rod are correspondingly hinged to the two lower hinged protrusions.

[0016] As an optimized solution, a sliding sleeve is hinged at the sliding end of the auxiliary adjustment rod, and the sliding sleeve is slidably mounted on the main adjustment rod.

[0017] As an optimized solution, an adjusting stud is vertically fixed at the center of the blade pressure plate, a driving sleeve is rotatably provided on the adjustment plate, and the driving sleeve is threadedly connected to the adjusting stud.

[0018] As an optimized solution, a locking nut is threadedly connected to the adjusting stud, and the lower surface of the locking nut abuts against the upper edge of the driving sleeve.

[0019] As an optimized solution, a mounting hole is provided on the adjustment plate, the drive sleeve passes through the mounting hole, and drive nuts are fixedly connected to the outer walls of the drive sleeve at upper and lower sides of the mounting hole, respectively.

[0020] As an optimized solution, guide pillars are fixedly connected in parallel to the upper surface of the blade pressure plate, and guide holes matching the guide pillars are opened on the adjustment plate.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] When the angle of the fan blade needs to be adjusted, the drive sleeve is rotated to drive the adjustment plate to move up and down under the action of the adjustment stud. Since the adjustment plate is connected to the connecting plate through the main adjustment rod, the main adjustment rod is used to drive the connecting plate to rotate when the adjustment plate moves up and down, thereby adjusting the angle of the fan blade. After the adjustment is in place, the locking nut is tightened, and the lower surface of the locking nut is against the upper edge of the drive sleeve. The locking principle of the top nut is used to lock the angle of the blade, which is convenient and quick.

[0023] The utility model can effectively solve the problem of inconsistent blade angle adjustment and shutdown inspection, and ensure that the blade angle can be quickly adjusted during the operation of the equipment to meet the highest efficiency requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0025] Figure 1 It is a schematic diagram of the structure of the present utility model;

[0026] Figure 2 This is a structural diagram of the auxiliary adjustment rod of the utility model

[0027] Figure 3 It is a structural schematic diagram of the prior art.

[0028] In the figure: 1-blade pressure plate, 2-adjustment plate, 3-fan blade, 4-bearing, 5-bearing seat, 6-connecting plate, 7-main adjustment rod; 8-auxiliary adjustment rod; 9-sliding sleeve; 10-guide column; 11-adjusting stud; 12-driving sleeve; 13-driving nut; 14-locking nut. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0030] like Figure 1 and Figure 2 As shown, the blade quick adjustment structure includes a blade pressure plate 1, on which a plurality of fan blades 3 are circumferentially arranged, each fan blade 3 is rotated to adjust the angle with a horizontal line as a rotation axis, and an adjustment plate 2 is vertically raised and lowered on the upper surface of the blade pressure plate 1, and a main adjustment rod 7 is hinged on the adjustment plate 2, and the lower end of the main adjustment rod 7 is hinged to the connecting end of the fan blade 3.

[0031] The blade pressure plate 1 is fixed to the reducer, which is consistent with the existing installation method.

[0032] At the same time, in order to ensure that the blade fixing and adjusting device is stable and reliable, the strength is ensured by the auxiliary adjusting rod 8, wherein the auxiliary adjusting rod 8 and the main adjusting rod 7 are connected in a sliding structure, and the auxiliary adjusting rod 8 and the connecting plate 6 are a fixed hinged structure.

[0033] An auxiliary adjustment rod 8 is also hinged at the connecting end of the fan blade 3 , and the other end of the auxiliary adjustment rod 8 is slidably connected to the main adjustment rod 7 .

[0034] A bearing 4 is provided on the blade pressure plate corresponding to each fan blade 3 , and the connecting end of the fan blade 3 is rotatably mounted on the bearing 4 .

[0035] A bearing seat 5 is fixedly connected to the blade pressure plate, and the bearing 4 is fixed in the bearing seat 5 .

[0036] The connecting end of the fan blade 3 is fixedly connected to a connecting plate 6 located on one side of the bearing seat 5 .

[0037] An upper hinged protrusion is fixedly connected to the lower surface of the adjustment plate 2, and the upper end of the main adjustment rod 7 is hinged on the hinged protrusion.

[0038] Two lower hinged protrusions are fixedly connected to the outer wall of the connecting plate 6 along the circumferential direction, and the lower end of the main adjustment rod 7 and the hinged end of the auxiliary adjustment rod 8 are correspondingly hinged to the two lower hinged protrusions.

[0039] The sliding end of the auxiliary adjustment rod 8 is hinged with a sliding sleeve 9, and the sliding sleeve 9 is slidably sleeved on the main adjustment rod 7.

[0040] An adjusting stud 11 is vertically fixedly connected to the center of the blade pressure plate 1 , and a driving sleeve 12 is rotatably provided on the adjustment plate 2 , and the driving sleeve 12 is threadedly connected to the adjusting stud 11 .

[0041] A locking nut 14 is threadedly connected to the adjusting stud 11 , and the lower surface of the locking nut 14 abuts against the upper edge of the driving sleeve 12 .

[0042] The adjusting plate 2 is provided with a mounting hole, and the driving sleeve 12 passes through the mounting hole. The driving sleeve 12 is located on the outer walls of the mounting hole at both upper and lower sides thereof and is respectively fixed with driving nuts 13 .

[0043] The upper surface of the blade pressure plate 1 is fixedly connected with guide pillars 10 in parallel, and the adjustment plate 2 is provided with guide holes matching with the guide pillars 10 .

[0044] The connection disk 6 may also be driven by an automatic method such as electric control or hydraulic control.

[0045] The working principle of this device is:

[0046] When the angle of the fan blade 3 needs to be adjusted, the drive sleeve 12 is rotated, and the adjustment plate 2 is driven to rise and fall under the action of the adjustment stud 11. Since the adjustment plate 2 is connected to the connecting plate 6 through the main adjustment rod 7, the main adjustment rod 7 is used to drive the connecting plate 6 to rotate when the adjustment plate 2 moves up and down, thereby adjusting the angle of the fan blade 3. After the adjustment is in place, the locking nut 14 is tightened, and the lower surface of the locking nut 14 is against the upper edge of the drive sleeve 12. The locking principle of the top nut is used to lock the angle of the blade, which is convenient and quick.

[0047] The utility model can effectively solve the problem of inconsistent blade angle adjustment and shutdown inspection, and ensure that the blade angle can be quickly adjusted during the operation of the equipment to meet the highest efficiency requirements.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. The blade quick adjustment structure is characterized by: The invention comprises a blade pressure plate (1), a plurality of fan blades (3) are arranged circumferentially on the blade pressure plate (1), each of the fan blades (3) is rotated to adjust the angle with a horizontal line as a rotation axis, an adjustment plate (2) is vertically raised and lowered on the upper surface of the blade pressure plate (1), a main adjustment rod (7) is hinged on the adjustment plate (2), and the lower end of the main adjustment rod (7) is hinged to the connection end of the fan blade (3).

2. The blade rapid adjustment structure according to claim 1, characterized in that: The connecting end of the fan blade (3) is also hinged with an auxiliary adjustment rod (8), and the other end of the auxiliary adjustment rod (8) is slidably connected to the main adjustment rod (7).

3. The blade rapid adjustment structure according to claim 2 is characterized in that: A bearing (4) is provided on the blade pressure plate corresponding to each of the fan blades (3), and the connecting end of the fan blade (3) is rotatably mounted on the bearing (4).

4. The blade rapid adjustment structure according to claim 3 is characterized in that: A bearing seat (5) is fixedly connected to the blade pressure plate, and the bearing (4) is fixed in the bearing seat (5).

5. The blade rapid adjustment structure according to claim 4 is characterized in that: The connection end of the fan blade (3) is fixedly connected to a connection plate (6) located on one side of the bearing seat (5).

6. The blade rapid adjustment structure according to claim 5, characterized in that: An upper hinged protrusion is fixedly connected to the lower surface of the adjustment plate (2), the upper end of the main adjustment rod (7) is hinged on the hinged protrusion, two lower hinged protrusions are fixedly connected to the outer wall of the connecting plate (6) along the circumferential direction, and the lower end of the main adjustment rod (7) and the hinged end of the auxiliary adjustment rod (8) are correspondingly hinged on the two lower hinged protrusions.

7. The blade rapid adjustment structure according to claim 6, characterized in that: The sliding end of the auxiliary adjustment rod (8) is hinged with a sliding sleeve (9), and the sliding sleeve (9) is slidably mounted on the main adjustment rod (7).

8. The blade rapid adjustment structure according to claim 1, characterized in that: An adjusting screw (11) is vertically fixedly connected to the center of the blade pressure plate (1), and a driving sleeve (12) is rotatably provided on the adjustment plate (2), and the driving sleeve (12) is threadedly connected to the adjusting screw (11).

9. The blade rapid adjustment structure according to claim 8, characterized in that: The adjusting stud (11) is also threadedly connected with a locking nut (14), and the lower surface of the locking nut (14) abuts against the upper edge of the driving sleeve (12).

10. The blade rapid adjustment structure according to claim 9, characterized in that: The adjustment plate (2) is provided with a mounting hole, the drive sleeve (12) passes through the mounting hole, the drive sleeve (12) is respectively fixedly connected with drive nuts (13) on the outer walls on the upper and lower sides of the mounting hole, the upper surface of the blade pressure plate (1) is fixedly connected with guide pillars (10) in parallel, and the adjustment plate (2) is provided with guide holes matching the guide pillars (10).

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