Main shaft auxiliary fixing tool of vertical shaft fan

Abstract

The utility model relates to an auxiliary fixing tool for a main shaft of a vertical shaft fan, which is arranged at the lower end of the main shaft of the fan and comprises a transmission bearing, a fixing rod and a sealing structure, a mounting groove is formed in the lower end of the fan spindle, the transmission bearing is mounted in the mounting groove, one end of the fixing rod is connected with the transmission bearing, the cross section of the other end of the fixing rod is of a polygonal structure, the fixing rod is mounted on the ground, and the sealing structure is fixed to a port of the mounting groove. Compared with the prior art, the utility model has the advantages that the main shaft rotates more stably and reliably.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical fan field especially vertical shaft fan's main shaft auxiliary fixing frock. BACKGROUND

[0002] The market potential of wind power generation is huge, and the large reserves and wide distribution of wind energy in China lay a good foundation for the development of wind power generation. Under the background of the national call for vigorously developing clean energy, wind power generation has entered a period of rapid development. The existing wind power generator can be summarized as two types: horizontal axis wind power generator and vertical axis wind power generator.

[0003] Horizontal axis wind power generator can be divided into two types: lift type and resistance type. The rotating speed of lift type wind power generator is fast, and the rotating speed of resistance type is slow. Most horizontal axis wind power generators have wind direction changing devices and can rotate with the wind direction. The structure is complex. Vertical axis wind power generator does not need to be winded when the wind direction changes. It is a great advantage compared with horizontal axis wind power generator. It not only simplifies the structure design, but also reduces the gyroscopic force of the wind wheel when it is winded.

[0004] At present, in order to improve the rotating efficiency of vertical shaft fan, the main shaft can be suspended to reduce the energy consumption caused by the friction between the main shaft and other structures, so as to improve the power generation efficiency of vertical shaft fan. However, the above-mentioned main shaft suspension structure is installed by using two end bearings, and the centering fixation of the main shaft is poor. If the main shaft shakes due to a collision, it will cause great damage to the operation of the fan main shaft, resulting in low reliability of the fixation of the fan main shaft. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of poor fixation reliability of the suspended main shaft in the prior art and provides a vertical shaft fan main shaft auxiliary fixation frock.

[0006] The purpose of the utility model can be realized by the following technical schemes:

[0007] A vertical shaft fan main shaft auxiliary fixation frock is arranged at the lower end of the fan main shaft, the frock comprises a transmission bearing, a fixing rod and a sealing structure;

[0008] The lower end of the fan main shaft is provided with a mounting groove, the transmission bearing is installed in the mounting groove, one end of the fixing rod is connected with the transmission bearing, the other end has a polygonal structure in cross section and is installed on the ground, and the sealing structure is fixed on the port of the mounting groove.

[0009] Preferably, the mounting groove is a cylindrical hole, and the mounting groove is coaxially arranged with the fan main shaft.

[0010] Preferably, the bottom end of the mounting groove is provided with a limiting step abutting the outer ring of the transmission bearing.

[0011] Preferably, the transmission bearing is an angular contact bearing or a tapered roller bearing.

[0012] Preferably, the number of transmission bearings is multiple.

[0013] Preferably, the fixing rod comprises a welding section and a fixing section, the welding section is fixed in the inner ring of the transmission bearing, and the fixing section is installed on the ground.

[0014] Preferably, the cross-sectional shape of the fixing section comprises a triangle, a square or a pentagon.

[0015] Preferably, the fixing section is a square steel.

[0016] Preferably, the sealing structure comprises a gland, a sealing sleeve and a locking nut.

[0017] The sealing sleeve is sleeved on the fixing rod, the gland is fixed on the fan main shaft, the locking nut is installed on the fixing rod and abuts against the sealing sleeve, and the gland is sleeved on the outside of the sealing sleeve.

[0018] Preferably, the gland is provided with a threaded hole, and the gland is installed on the fan main shaft through a screw.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] (1) The fixing rod is installed into the inner ring of the transmission bearing and is fixed, then the transmission bearing is installed into the mounting groove at the lower end of the fan main shaft, the relative displacement of the outer ring of the transmission bearing and the side wall of the mounting groove is fixed, the sealing structure is fixed at the port of the mounting groove to seal the working environment of the transmission bearing, then the other end of the fixing rod is installed on the ground, and the axial auxiliary fixing of the fan main shaft is completed.

[0021] The mounting groove is arranged at the lower end of the main shaft, the transmission bearing in the mounting groove and the fixing rod are matched to perform the auxiliary fixing of the axial direction of the main shaft, one end of the fixing rod connected with the ground adopts the polygonal cross-section columnar structure, the self-rotation and swing of the fixing rod are prevented, and the stability and reliability of the auxiliary fixing of the fan main shaft by the fixing rod are ensured.

[0022] (2) Multiple transmission bearings can be arranged in the mounting groove in the scheme, the contact area of the fixing rod and the transmission bearing is increased, the stability and centring of the connection of the fixing rod and the transmission bearing are improved, the coaxial effect of the fixing rod and the fan main shaft is improved, and the accuracy of the operation stability of the fan main shaft by the fixing rod is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A structure schematic view of the auxiliary fixing tool is provided in the utility model;

[0024] In the drawing: 1, fan main shaft, 2, transmission bearing, 3, fixed rod, 4, sealing structure, 11, installation groove, 12, limiting step, 41, gland, 42, sealing sleeve, 43, locking nut, 44, screw. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0027] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0029] It should be noted that the terms "first", "second" are only for description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0030] Furthermore, the terms "horizontal," "vertical," and the like are used as terms of convenience to reference the orientation of components, and do not require the components to be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" merely means more horizontal than "vertical," and does not require the structure to be perfectly horizontal, but can be slightly inclined.

[0031] Embodiment 1

[0032] As Figure 1 shown, the embodiment provides a main shaft auxiliary fixing tool for a vertical shaft fan, which is arranged at the lower end of a fan main shaft 1, and the tool comprises a transmission bearing 2, a fixing rod 3 and a sealing structure 4.

[0033] The lower end of the fan main shaft 1 is provided with a mounting groove 11, the transmission bearing 2 is mounted in the mounting groove 11, one end of the fixing rod 3 is connected to the transmission bearing 2, the other end has a polygonal structure in cross section and is mounted on the ground, and the sealing structure 4 is fixed to the port of the mounting groove 12.

[0034] Working principle: install the fixing rod 3 into the inner ring of the transmission bearing 2 and fix it, then install the transmission bearing 2 into the mounting groove 11 at the lower end of the fan main shaft 1, fix the relative displacement between the outer ring of the transmission bearing 2 and the side wall of the mounting groove 11, fix the sealing structure 4 to the port of the mounting groove 11 to seal the working environment of the transmission bearing 2, and then install the other end of the fixing rod 3 to the ground, so that the axial auxiliary fixing of the fan main shaft 1 is completed.

[0035] By arranging the mounting groove 11 at the lower end of the main shaft 1, and cooperating with the transmission bearing 2 and the fixing rod 3 in the mounting groove 11 to fix the axial direction of the main shaft, and by adopting a polygonal column structure for the end of the fixing rod 3 connected to the ground, the self-rotation and swing of the fixing rod 3 can be prevented, and the stability and reliability of the fixing rod 3 in fixing the fan main shaft can be ensured. The sealing structure 4 arranged at the opening end of the mounting groove 11 can ensure the working environment of the transmission bearing 2 and prolong the service life of the tool.

[0036] Preferably, the mounting groove 11 is a cylindrical hole, and the mounting groove 11 is coaxially arranged with the fan main shaft 1. The bottom end of the mounting groove 11 is provided with a limiting step 12 abutting against the outer ring of the transmission bearing 2.

[0037] Preferably, the transmission bearing 2 is an angular contact bearing or a tapered roller bearing. The number of transmission bearings 2 is multiple. The number of transmission bearings 2 can be 2-4, which can improve the axial and radial bearing capacity of the transmission bearing 2.

[0038] By arranging multiple transmission bearings in the mounting groove, the contact area between the fixing rod and the transmission bearing is increased, the stability and centring of the fixing rod and the transmission bearing are improved, the coaxial effect of the fixing rod and the fan main shaft is improved, and the accuracy of the fixing rod in improving the running stability of the fan main shaft can be improved.

[0039] Specifically, the fixed rod 3 comprises a welding section and a fixed section, the welding section is fixed in the inner ring of the transmission bearing 2, and the fixed section is installed on the ground. The cross-sectional shape of the fixed section comprises a triangle, a square or a pentagon. Preferably, the fixed section adopts a square steel.

[0040] The fixed section of the fixed rod 3 adopts a square steel, which facilitates the manufacturing of the fixed rod 3, ensures that the fixed rod 3 is fixed and anti-rotating, and reduces the manufacturing cost of the fixed rod 3.

[0041] Specifically, the sealing structure 4 comprises a gland 41, a sealing sleeve 42 and a locking nut 43.

[0042] The sealing sleeve 42 is sleeved on the fixed rod 3, the gland 41 is fixed on the fan main shaft 1, the locking nut 43 is installed on the fixed rod 3 and abuts against the sealing sleeve 42, and the gland 41 is sleeved outside the sealing sleeve 42.

[0043] The gland 41 is provided with a threaded hole, and the gland 41 is installed on the fan main shaft 1 through a screw 44.

[0044] By arranging the sealing steel structure 4 at the port position of the installation groove 11, the transmission bearing 2 in the installation groove 11 and the external environment are isolated, the independence of the rotating environment of the transmission bearing 2 in the installation groove is ensured, and the stability and reliability of the rotation of the transmission bearing 2 are ensured, thereby prolonging the service life of the transmission bearing 2.

[0045] The preferred embodiments of the utility model are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the utility model. Therefore, any technical scheme obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the utility model should be within the protection scope determined by the claims.

Claims

1. An auxiliary fixing fixture for the main shaft of a vertical axis fan, disposed at the lower end of the fan main shaft (1), characterized in that, The tooling includes a transmission bearing (2), a fixing rod (3), and a sealing structure (4); The lower end of the fan main shaft (1) is provided with an installation groove (11), the transmission bearing (2) is installed in the installation groove (11), one end of the fixing rod (3) is connected to the transmission bearing (2), the other end has a polygonal cross-section and is installed on the ground, and the sealing structure (4) is fixed on the port of the installation groove (12).

2. The auxiliary fixing fixture for the main shaft of a vertical axis fan according to claim 1, characterized in that, The mounting groove (11) is a cylindrical hole, and the mounting groove (11) is coaxially arranged with the fan main shaft (1).

3. The auxiliary fixing fixture for the main shaft of a vertical axis fan according to claim 1, characterized in that, The bottom end of the mounting groove (11) is provided with a limiting step (12), which abuts against the outer ring of the transmission bearing (2).

4. The auxiliary fixing fixture for the main shaft of a vertical axis fan according to claim 1, characterized in that, The transmission bearing (2) is an angular contact bearing or a tapered roller bearing.

5. The auxiliary fixing fixture for the main shaft of a vertical axis fan according to claim 1, characterized in that, The number of transmission bearings (2) is multiple.

6. The auxiliary fixing fixture for the main shaft of a vertical axis fan according to claim 1, characterized in that, The fixed rod (3) includes a welded section and a fixed section. The welded section is fixed in the inner ring of the transmission bearing (2), and the fixed section is installed on the ground.

7. The auxiliary fixing fixture for the main shaft of a vertical axis fan according to claim 6, characterized in that, The cross-sectional shape of the fixed segment includes a triangle, a square, or a pentagon.

8. The auxiliary fixing fixture for the main shaft of a vertical axis fan according to claim 6, characterized in that, The fixed section is made of square steel.

9. The auxiliary fixing fixture for the main shaft of a vertical axis fan according to claim 1, characterized in that, The sealing structure (4) includes a gland (41), a sealing sleeve (42), and a locking nut (43); The sealing sleeve (42) is fitted on the fixing rod (3), the pressure cap (41) is fixed on the fan main shaft (1), the locking nut (43) is installed on the fixing rod (3) and abuts against the sealing sleeve (42), and the pressure cap (41) is fitted on the outside of the sealing sleeve (42).

10. The auxiliary fixing fixture for the main shaft of a vertical axis fan according to claim 9, characterized in that, The pressure cap (41) is provided with a threaded hole, and the pressure cap (41) is installed on the fan main shaft (1) by screws (44).

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