Fan speed reducer stable in operation

Abstract

The utility model relates to a fan speed reducer stable in operation, which comprises a first rotating shaft, a second rotating shaft and a third rotating shaft, the first rotating shaft is a worm and gear, a worm gear is arranged on the first rotating shaft, a first helical gear is fixedly mounted on the first rotating shaft, and a second helical gear is fixedly mounted on the second rotating shaft. A first bevel gear is fixedly installed on the first rotating shaft, a second bevel gear is fixedly installed on the second rotating shaft, a third bevel gear is fixedly installed on the third rotating shaft, the first bevel gear is meshed with the second bevel gear, the worm gear is meshed with the third bevel gear, and the diameter of the third bevel gear is larger than that of the first bevel gear. The diameter of the first bevel gear is larger than that of the second bevel gear, so that the second rotating shaft is connected with a high-rotating-speed motor, and the third rotating shaft outputs a low rotating speed.

Description

Technical Field

[0001] The utility model relates to the field of speed reducers, in particular to a fan speed reducer with stable operation. Background Art

[0002] Speed reducers are essential equipment in the wind turbine industry. In existing technology, speed reducers typically feature two rotating shafts, each equipped with a relatively small-diameter spur gear and a larger-diameter spur gear. The two spur gears mesh together to transmit speed. However, due to inherent flaws in spur gears and the meshing of multiple spur gears, these speed reducers can experience vibration, loud noise, unstable operation, and poor transmission accuracy after prolonged or frequent use. Summary of the Invention

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a fan reducer with stable operation.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a fan reducer with smooth operation, comprising a first rotating shaft, a second rotating shaft, and a third rotating shaft, the first rotating shaft being a worm gear, a worm wheel being provided on the first rotating shaft, a first helical gear being fixedly mounted on the first rotating shaft, a second helical gear being fixedly mounted on the second rotating shaft, and a third helical gear being fixedly mounted on the third rotating shaft, the first helical gear and the second helical gear being meshed, and the worm wheel and the third helical gear being meshed, wherein the diameter of the third helical gear is larger than the diameter of the first helical gear, and the diameter of the first helical gear is larger than the diameter of the second helical gear, so that the second rotating shaft is connected to a high-speed motor, and the third rotating shaft outputs a low-speed output.

[0005] Furthermore, it includes a first bearing and a second bearing, wherein the first bearing and the second bearing are both fixedly mounted on the first rotating shaft, and the first bevel gear and the worm gear are located between the first bearing and the second bearing.

[0006] Furthermore, it also includes a third bearing and a fourth bearing, and the third bearing and the fourth bearing are both fixedly mounted on the second rotating shaft.

[0007] Furthermore, it also includes a fifth bearing and a sixth bearing, wherein the fifth bearing and the sixth bearing are both fixedly mounted on the third rotating shaft, and the third bevel gear is located between the fifth bearing and the sixth bearing.

[0008] Furthermore, it also includes a base, which has a first bearing mounting cavity and a fourth bearing mounting cavity. The first bearing is fixedly mounted in the first bearing mounting cavity by an interference fit connection; the second bearing is fixedly mounted in the second bearing mounting cavity by an interference fit connection.

[0009] Furthermore, the base also has a second bearing mounting cavity and a third bearing mounting cavity. The third bearing is fixedly mounted in the third bearing mounting cavity by an interference fit connection, and the fourth bearing is fixedly mounted in the second bearing mounting cavity by an interference fit connection.

[0010] Furthermore, the base also has a fifth bearing mounting cavity and a sixth bearing mounting cavity, the fifth bearing mounting cavity is adapted to the fifth bearing, and the sixth bearing mounting cavity is adapted to the sixth bearing; the fifth bearing is fixedly mounted in the fifth bearing mounting cavity by an interference fit connection, and the sixth bearing is fixedly mounted in the sixth bearing mounting cavity by an interference fit connection.

[0011] Furthermore, the second rotating shaft includes a limiting portion, the first bevel gear is fixedly mounted on the second rotating shaft, and the first bevel gear abuts against the limiting portion, thereby limiting and positioning the position of the first bevel gear on the second rotating shaft.

[0012] Furthermore, the first helical gear includes a first helical gear body and a spacing segment, and the spacing segment is fixedly connected to the first helical gear body.

[0013] The beneficial effects of the present application are: the fan reducer with smooth operation provided by the present application has the advantages of simple structure and easy assembly, and in view of the fact that the reducer has three-stage reduction gears, and the reduction gears are helical gears, the reducer has the advantages of smooth operation, high reduction accuracy, low vibration and low noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a fan reducer with stable operation provided by the utility model.

[0015] Figure 2 This is another structural schematic diagram of a fan reducer with stable operation provided by the utility model.

[0016] Figure 3 This is another structural schematic diagram of a fan reducer with stable operation provided by the utility model. DETAILED DESCRIPTION

[0017] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0018] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0019] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0020] Please refer to Figure 1-3 , the present application provides a fan reducer (hereinafter referred to as the reducer) with smooth operation, which includes a first rotating shaft 2, a second rotating shaft 5, and a third rotating shaft 9. The first rotating shaft 2 is a worm gear, and a worm wheel 21 is provided on the first rotating shaft 2. A first helical gear 3 is fixedly mounted on the first rotating shaft 2, a second helical gear 8 is fixedly mounted on the second rotating shaft 5, and a third helical gear 10 is fixedly mounted on the third rotating shaft 9. The first helical gear 3 and the second helical gear 8 are meshed, and the worm wheel 21 and the third helical gear 10 are meshed, wherein the diameter of the third helical gear 10 is larger than the diameter of the first helical gear 3, and the diameter of the first helical gear 3 is larger than the diameter of the second helical gear 8, so that the second rotating shaft 5 is connected to a high-speed motor, and the third rotating shaft 9 outputs a low speed.

[0021] In one embodiment of the present application, the reducer also includes a first bearing 4 and a second bearing 12, the first bearing 4 and the second bearing 12 are both fixedly mounted on the first rotating shaft 2, and the first bevel gear 3 and the worm gear 21 are located between the first bearing 4 and the second bearing 12.

[0022] In one embodiment of the present application, the reducer further includes a third bearing 6 and a fourth bearing 7 , and the third bearing 6 and the fourth bearing 7 are both fixedly mounted on the second rotating shaft 5 .

[0023] In one embodiment of the present application, the reducer further includes a fifth bearing 11 and a sixth bearing 13 , wherein the fifth bearing 11 and the sixth bearing 13 are both fixedly mounted on the third rotating shaft 9 , and the third bevel gear 10 is located between the fifth bearing 11 and the sixth bearing 13 .

[0024] In one embodiment of the present application, the reducer also includes a base 1, which has a first bearing mounting cavity 101 and a fourth bearing mounting cavity (not shown in the figure), and the first bearing 4 is fixedly installed in the first bearing mounting cavity 101 by an interference fit connection; the second bearing 12 is fixedly installed in the second bearing mounting cavity by an interference fit connection.

[0025] In one embodiment of the present application, the base 1 also has a second bearing mounting cavity 102 and a third bearing mounting cavity 103, the third bearing 6 is fixedly mounted in the third bearing mounting cavity 103 by an interference fit connection, and the fourth bearing 7 is fixedly mounted in the second bearing mounting cavity 102 by an interference fit connection.

[0026] In one embodiment of the present application, the base 1 also has a fifth bearing mounting cavity (not shown in the figure) and a sixth bearing mounting cavity (not shown in the figure), the fifth bearing mounting cavity is adapted to the fifth bearing 11, and the sixth bearing mounting cavity is adapted to the sixth bearing 13; the fifth bearing 11 is fixedly mounted in the fifth bearing mounting cavity by an interference fit connection, and the sixth bearing 13 is fixedly mounted in the sixth bearing mounting cavity by an interference fit connection.

[0027] In one embodiment of the present application, the second rotating shaft 2 includes a limiting portion 22, the first bevel gear 3 is fixedly mounted on the second rotating shaft 2, and the first bevel gear 3 abuts against the limiting portion 22, thereby limiting and positioning the position of the first bevel gear 3 on the second rotating shaft 2.

[0028] In one embodiment of the present application, the first helical gear 3 includes a first helical gear body 31 and a spacing segment 32 , and the spacing segment 32 is fixedly connected to the first helical gear body 31 .

[0029] The fan reducer with smooth operation provided in the present application has the advantages of simple structure and easy assembly. In view of the fact that the reducer has three-stage reduction gears and the reduction gears are helical gears, the reducer has the advantages of smooth operation, high reduction accuracy, low vibration and low noise.

[0030] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A fan reducer with stable operation, characterized in that: The invention comprises a first rotating shaft, a second rotating shaft and a third rotating shaft, wherein the first rotating shaft is a worm gear, a worm wheel is provided on the first rotating shaft, a first helical gear is fixedly mounted on the first rotating shaft, a second helical gear is fixedly mounted on the second rotating shaft, and a third helical gear is fixedly mounted on the third rotating shaft, the first helical gear and the second helical gear are meshed, and the worm wheel and the third helical gear are meshed, wherein the diameter of the third helical gear is larger than the diameter of the first helical gear, and the diameter of the first helical gear is larger than the diameter of the second helical gear, so that the second rotating shaft is connected to a high-speed motor and the third rotating shaft outputs a low speed.

2. The fan reducer with stable operation according to claim 1, characterized in that: It also includes a first bearing and a second bearing. The first bearing and the second bearing are both fixedly mounted on the first rotating shaft, and the first bevel gear and the worm gear are located between the first bearing and the second bearing.

3. The fan reducer with stable operation according to claim 2, characterized in that: It also includes a third bearing and a fourth bearing, and the third bearing and the fourth bearing are both fixedly mounted on the second rotating shaft.

4. The fan reducer with stable operation according to claim 3, characterized in that: It also includes a fifth bearing and a sixth bearing. The fifth bearing and the sixth bearing are both fixedly mounted on the third rotating shaft, and the third bevel gear is located between the fifth bearing and the sixth bearing.

5. The fan reducer with stable operation according to claim 4, characterized in that: It also includes a base, which has a first bearing mounting cavity and a fourth bearing mounting cavity. The first bearing is fixedly mounted in the first bearing mounting cavity by an interference fit connection; the second bearing is fixedly mounted in the second bearing mounting cavity by an interference fit connection.

6. The fan reducer with stable operation according to claim 5, characterized in that: The base also has a second bearing mounting cavity and a third bearing mounting cavity. The third bearing is fixedly mounted in the third bearing mounting cavity by an interference fit connection, and the fourth bearing is fixedly mounted in the second bearing mounting cavity by an interference fit connection.

7. The fan reducer with stable operation according to claim 6, characterized in that: The base also has a fifth bearing mounting cavity and a sixth bearing mounting cavity. The fifth bearing mounting cavity is adapted to the fifth bearing, and the sixth bearing mounting cavity is adapted to the sixth bearing. The fifth bearing is fixedly mounted in the fifth bearing mounting cavity by an interference fit connection, and the sixth bearing is fixedly mounted in the sixth bearing mounting cavity by an interference fit connection.

8. The fan reducer with stable operation according to claim 7, characterized in that: The second rotating shaft includes a limiting portion, the first bevel gear is fixedly mounted on the second rotating shaft, and the first bevel gear abuts against the limiting portion, thereby limiting and positioning the position of the first bevel gear on the second rotating shaft.

9. The fan reducer with stable operation according to claim 8, characterized in that: The first helical gear includes a first helical gear body and a spacing segment, and the spacing segment is fixedly connected to the first helical gear body.

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