Fixed shaft support type wind wheel connecting structure convenient to install

Abstract

The utility model discloses a fixing shaft support type wind wheel connecting structure convenient to install, and relates to the technical field of wind power generation, the fixing shaft support type wind wheel connecting structure comprises a supporting tower and a rotating disc, a fixing transverse shaft is installed at the top end of the rotating disc, a windmill is arranged at one end of the fixing transverse shaft, and a bearing is arranged between the windmill and the fixing transverse shaft in a sleeving mode; a mounting plate is fixedly arranged at the front end of the windmill, a main transverse shaft is fixedly arranged at the center of the mounting plate, and the main transverse shaft is connected with a generator. The fixed transverse shaft is adopted, and the bearing is arranged at the windmill, so that the large size of the windmill can be easily realized, and the windmill rotates around the fixed transverse shaft to drive the main transverse shaft to rotate; the problem that the windmill catches fire due to excessive abrasion of the bearing can be effectively solved, and therefore the service life of the wind driven generator is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a fixed-axis bracket type wind wheel connection structure which is easy to install. Background Art

[0002] In the related technology, the Chinese invention patent with publication number CN103726992A discloses a large-scale and efficient wind turbine with a tower crane-type stable blade puller. The windmill 6 is suspended and installed at the end of the main horizontal axis 3. When the wind turbine is running, the main horizontal axis 3 is driven to rotate by the windmill 6, thereby driving the rotor of the generator 4 to rotate to achieve power generation.

[0003] However, as an important component for stably mounting the main transverse shaft, the bearing is subject to large shear forces in existing related technologies. The longer the main transverse shaft extends, the greater the shear forces on the bearing. Therefore, the following problems need to be urgently addressed:

[0004] 1. The main horizontal axis can only extend to a certain length, making it difficult to achieve large-scale wind rotors;

[0005] 2. As the wind turbine runs for a long time, the bearings of the main horizontal axis are subjected to the load of the windmill and the vibration during operation for a long time. The damage rate increases year by year. In severe cases, serious accidents such as windmill fire may occur. Utility Model Content

[0006] In order to solve the problems existing in the above-mentioned related technologies and to increase the service life of the wind turbine by increasing the service life of the bearings, the present application provides the following technical solutions:

[0007] A fixed-axis bracket-type wind wheel connection structure that is easy to install includes a supporting tower and a turntable, a fixed transverse axis is installed on the top of the turntable, a windmill is provided at one end of the fixed transverse axis, a bearing is sleeved between the windmill and the fixed transverse axis, a mounting plate is fixedly provided at the front end of the windmill, a main transverse axis is fixedly provided at the center of the mounting plate, and the main transverse axis is connected to a generator; the present application connects the windmill and the fixed transverse axis through a bearing. On the one hand, it is only necessary to enlarge and lengthen the fixed transverse axis so that it can meet the strength requirements, thereby easily making the windmill larger, increasing the number of wind wheel blades, and improving the power of the windmill; on the other hand, the main transverse axis is driven to rotate by the windmill around the fixed transverse axis, which can reduce the load on the bearing, thereby improving the service life of the bearing, effectively reducing the problem of windmill fire caused by bearing damage, and thus effectively improving the service life of the wind turbine; in addition, the main transverse axis is located at the center of the windmill and can transmit greater torque.

[0008] As a preferred solution of a fixed-axis bracket type wind wheel connection structure that is easy to install as described in the present application, the windmill includes a central circular frame bracket, and mounting outer sleeves are provided at both ends of the central circular frame bracket. The fixed horizontal axis is fixedly provided with mounting inner sleeves at both ends of the windmill, and the bearing is positioned by the mounting outer sleeve and the mounting inner sleeve; by adopting the mounting inner sleeve and the mounting outer sleeve to position the bearing for installation, not only can the operation of the windmill be made more stable, but also the installation of the windmill is convenient.

[0009] As a preferred solution of a fixed-axis bracket type wind wheel connection structure that is easy to install as described in this application, wherein: a positioning bolt is provided on the mounting sleeve, and the mounting sleeve is locked and fixed to the center circular frame bracket by the positioning bolt; the mounting sleeve is detachably arranged on the windmill through the positioning bolt, which is easy to disassemble, thereby facilitating the replacement of bearings during later maintenance.

[0010] As a preferred solution of a fixed-axis bracket-type wind wheel connection structure that is easy to install described in this application, a wind-gathering cone is provided at the front end of the windmill; the wind-gathering cone is used to direct the wind force to the blades of the windmill as much as possible, thereby improving the working efficiency of the windmill.

[0011] Compared with the prior art, the present invention has at least one of the following advantages:

[0012] The bearing is installed on the windmill by setting an inner sleeve and an outer sleeve. According to the principle of leverage, the load of the windmill acts directly on the bearing, which can reduce the load on the bearing. At the same time, the bearing can be replaced by disassembling and assembling the outer sleeve, which is convenient for maintenance and can effectively increase the service life of the wind turbine. In addition, the main horizontal axis is located in the center of the windmill. Compared with the method of transmitting power to the generator through gear transmission, the main horizontal axis has greater torque and higher efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional schematic diagram of a bearing according to an embodiment of the present application;

[0014] Figure 2 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0015] In the figure: 1. Support tower; 2. Fixed horizontal axis; 3. Windmill; 4. Center circular frame bracket; 5. Mounting plate; 6. Main horizontal axis; 7. Coupling; 8. Speed ​​increaser; 9. Generator; 10. Install inner sleeve; 11. Bearing; 12. Install outer sleeve; 13. Positioning bolt; 14. Wind gathering cone. DETAILED DESCRIPTION

[0016] To make the purpose, technical solutions and advantages of this application clearer, Figure 1-2The embodiments of the present application are described in further detail.

[0017] This embodiment provides a fixed-axis bracket type wind wheel connection structure that is easy to install. Figure 1 The fixed-axis bracket type wind wheel connection structure that is easy to install includes a supporting tower 1 and a turntable. The supporting tower 1 in this case can adopt a self-lifting tower crane support frame as disclosed in the Chinese patent publication number CN103726992A, or a support frame as disclosed in the Chinese patent publication number CN219281874U. The turntable is fixedly arranged at the top of the supporting tower 1; a fixed horizontal axis 2 is installed at the top of the turntable. In this case, the fixed horizontal axis 2 adopts a steel structure frame cantilever beam, and a windmill 3 is arranged at one end of the fixed horizontal axis 2.

[0018] Reference Figure 1 and Figure 2 The windmill 3 includes a central circular frame bracket 4, a bearing 11 is provided between the windmill 3 and the fixed horizontal axis 2, a mounting outer sleeve 12 is provided at both ends of the central circular frame bracket 4, and a mounting inner sleeve 10 is fixedly provided at both ends of the fixed horizontal axis 2 on the windmill 3. In this case, the mounting inner sleeve 10 is fixedly provided on the fixed horizontal axis 2 by welding, and the bearing 11 is positioned by the mounting outer sleeve 12 and the mounting inner sleeve 10; by installing the bearing 11 in a manner of positioning the mounting inner sleeve 10 and the mounting outer sleeve 12, not only the windmill 3 can be operated It is more stable and convenient for the installation of the windmill 3. In this case, the windmill 3 and the fixed horizontal axis 2 are connected by the bearing 11. Only by enlarging and lengthening the fixed horizontal axis 2 to meet the strength requirements, the windmill 3 can be easily enlarged, and the number of wind wheel blades can be increased, thereby improving the power of the windmill 3. In addition, the bearing 11 is arranged at the windmill 3, which can reduce the load of the bearing 11, thereby improving the service life of the bearing 11, effectively reducing the problem of windmill fire caused by damage to the bearing 11, and thus effectively improving the service life of the wind turbine.

[0019] A positioning bolt 13 is provided on the mounting sleeve 12, and the mounting sleeve 12 is locked and fixed to the central circular frame bracket 4 through the positioning bolt 13; the mounting sleeve 12 is detachably set on the windmill 3 through the positioning bolt 13. In order to facilitate the installation and maintenance of the windmill 3, the fixed horizontal axis 2 can adopt a detachable beam structure assembled in multiple sections, for example, by splicing with bolts, so as to facilitate the replacement of the bearing 11 during later maintenance.

[0020] A mounting plate 5 is fixedly mounted at the front end of the windmill 3. In this case, the mounting plate 5 is welded to the mounting sleeve 12. The mounting plate 5 can also be integrally formed with the mounting sleeve 12 and simply slotted together and secured to the windmill 3 via positioning bolts 13 for easy installation. A main transverse axis 6 is fixedly mounted at the center of the mounting plate 5. The main transverse axis 6 is connected to a speed increaser 8 via a coupling 7, and the output shaft of the speed increaser 8 is connected to a generator 9 via a coupling 7. A wind conical element 14 is also provided at the front end of the windmill 3. This conical element 14 directs as much wind as possible onto the blades of the windmill 3, improving its efficiency. Placing the main transverse axis at the center of the windmill also allows for the transmission of greater torque.

[0021] When wind turbine 9 is in operation, the rotation of windmill 3 drives the main horizontal shaft 6, which then transmits mechanical energy to speed increaser 8. The output shaft of speed increaser 8 then drives generator 9 to generate electricity. Windmill 3 can be assembled on the ground and then hoisted onto fixed horizontal shaft 2, which helps shorten the installation period of the wind turbine.

[0022] Although the present application has been described above with reference to embodiments, various modifications may be made thereto and components may be replaced with equivalents without departing from the scope of the present application. In particular, as long as there are no structural conflicts, the various features of the embodiments disclosed in this application may be combined with each other in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

Claims

1. A fixed-axis bracket-type wind wheel connection structure that is easy to install, comprising a support tower (1) and a turntable, characterized in that: A fixed transverse axis (2) is installed at the top of the turntable, a windmill (3) is provided at one end of the fixed transverse axis (2), a bearing (11) is sleeved between the windmill (3) and the fixed transverse axis (2), a mounting plate (5) is fixedly provided at the front end of the windmill (3), a main transverse axis (6) is fixedly provided at the center of the mounting plate (5), and the main transverse axis (6) is connected to a generator (9).

2. The fixed-axis bracket-type wind wheel connection structure that is easy to install according to claim 1, characterized in that: The windmill (3) comprises a central circular frame support (4), and mounting outer sleeves (12) are provided at both ends of the central circular frame support (4). The fixed transverse axis (2) is fixedly provided with mounting inner sleeves (10) at both ends of the windmill (3), and the bearing (11) is positioned by the mounting outer sleeve (12) and the mounting inner sleeve (10).

3. The fixed-axis bracket-type wind wheel connection structure that is easy to install according to claim 2, characterized in that: The installation sleeve (12) is provided with a positioning bolt (13), and the installation sleeve (12) is locked and fixed to the central circular frame bracket (4) through the positioning bolt (13).

4. A fixed-axis bracket-type wind wheel connection structure that is easy to install according to any one of claims 1 to 3, characterized in that: A wind-gathering cone (14) is provided at the front end of the windmill (3).

Images