Fan speed reducer

Abstract

The utility model relates to a fan speed reducer which comprises a speed reducing mechanism and an installation base, the speed reducing mechanism is installed on the installation base, and the speed reducing mechanism comprises a first rotating shaft, a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a first straight gear, a second straight gear, a third straight gear, a fourth straight gear, a first bevel gear and a second bevel gear. The first rotating shaft is fixedly sleeved with the first straight gear, the second rotating shaft is fixedly sleeved with the second straight gear, the third rotating shaft is fixedly sleeved with the fourth straight gear, the third rotating shaft is fixedly sleeved with the first bevel gear, the fourth rotating shaft is fixedly sleeved with the second bevel gear, and the fourth rotating shaft is fixedly sleeved with the third bevel gear. Wherein the first straight gear is meshed with the second straight gear, the third straight gear is meshed with the fourth straight gear, and the first bevel gear is meshed with the second bevel gear.

Description

Technical Field

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

[0002] The reducer is a very common industrial equipment. In the field of industrial fans, the reducer is a very important component. Its main function is to reduce the high speed to a preset slow speed. In the prior art, most fan reducers are gear reducers. In such reducers, two rotating shafts are generally provided. A spur gear is fixedly installed on each rotating shaft. The two spur gears mesh to transmit the speed. However, such reducers have poor stability on the one hand, and vibration and noise occur during the operation of the reducer; on the other hand, the deceleration effect is not ideal. Summary of the invention

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a fan reducer.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fan reducer, comprising a reduction mechanism and a mounting base, the reduction mechanism is installed on the mounting base, the reduction mechanism comprises a first rotating shaft, a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a first spur gear, a second spur gear, a third spur gear, a fourth spur gear, a first helical gear, and a second helical gear, the first spur gear is fixedly sleeved on the first rotating shaft, the second spur gear and the third spur gear are fixedly sleeved on the second rotating shaft, the fourth spur gear and the first helical gear are fixedly sleeved on the third rotating shaft, and the second helical gear is fixedly sleeved on the fourth rotating shaft, wherein the first spur gear is meshed with the second spur gear, the third spur gear is meshed with the fourth spur gear, and the first helical gear is meshed with the second helical gear.

[0005] Furthermore, the deceleration mechanism also includes a first bearing and a second bearing, and the first bearing and the second bearing are fixedly sleeved on the first rotating shaft, so that the first bearing and the second bearing are fixedly installed on the first rotating shaft; the first spur gear is located between the first bearing and the second bearing; the first bearing and the second bearing are both fixedly installed on the mounting base, so that the first rotating shaft rotates relative to the first bearing and the second bearing.

[0006] Furthermore, the deceleration mechanism also includes a third bearing and a fourth bearing, and the third bearing and the fourth bearing are fixedly sleeved on the second rotating shaft, so that the third bearing and the fourth bearing are fixedly installed on the second rotating shaft; the second spur gear and the third spur gear are located between the third bearing and the fourth bearing; the third bearing and the fourth bearing are both fixedly installed on the mounting base, so that the second rotating shaft rotates relative to the third bearing and the fourth bearing.

[0007] Furthermore, the reduction mechanism also includes a fifth bearing and a sixth bearing, and the fifth bearing and the sixth bearing are both fixedly mounted on the third rotating shaft, so that the fifth bearing and the sixth bearing are both fixedly mounted on the third rotating shaft; and the fourth spur gear and the first bevel gear are located between the fifth bearing and the sixth bearing; the fifth bearing and the sixth bearing are fixedly mounted on the mounting base, so that the third rotating shaft rotates relative to the fifth bearing and the sixth bearing.

[0008] Furthermore, the deceleration mechanism also includes a seventh bearing, and the seventh bearing is fixedly mounted on the fourth rotating shaft, so that the seventh bearing is fixedly installed on the fourth rotating shaft; the seventh bearing is fixedly installed on the mounting base, so that the fourth rotating shaft rotates relative to the seventh bearing.

[0009] Furthermore, a first semi-cylindrical card cavity, a second semi-cylindrical card cavity, a third semi-cylindrical card cavity, a fourth semi-cylindrical card cavity, a fifth semi-cylindrical card cavity, a sixth semi-cylindrical card cavity and a seventh semi-cylindrical card cavity are provided on the mounting base, wherein the first bearing is fixedly mounted in the first semi-cylindrical card cavity by an interference fit connection mode, the second bearing is fixedly mounted in the second semi-cylindrical card cavity by an interference fit connection mode, the third bearing is fixedly mounted in the third semi-cylindrical card cavity by an interference fit connection mode, the fourth bearing is fixedly mounted in the fourth semi-cylindrical card cavity by an interference fit connection mode, the fifth bearing is fixedly mounted in the fifth semi-cylindrical card cavity by an interference fit connection mode, the sixth bearing is fixedly mounted in the sixth semi-cylindrical card cavity by an interference fit connection mode, and the seventh bearing is fixedly mounted in the seventh semi-cylindrical card cavity by an interference fit connection mode.

[0010] Furthermore, a first connection end cover, a second connection end cover, a third connection end cover, a fourth connection end cover, a fifth connection end cover, a sixth connection end cover, and a seventh connection end cover are fixedly connected to the mounting base, wherein a portion of the first connection end cover is fixedly mounted on the outer surface of the mounting base, and the first bearing abuts against the first connection end cover, and one end of the first rotating shaft extends out of the first connection end cover; a portion of the second connection end cover is fixedly mounted on the outer surface of the mounting base, and the second bearing abuts against the second connection end cover; a portion of the third connection end cover is fixedly mounted on the outer surface of the mounting base, and the third bearing abuts against the second connection end cover. abutting against the third connecting end cover; a portion of the fourth connecting end cover is fixedly mounted on the outer surface of the mounting base, and the fourth bearing abuts against the fourth connecting end cover; a portion of the fifth connecting end cover is fixedly mounted on the outer surface of the mounting base, and the fifth bearing abuts against the fifth connecting end cover; a portion of the sixth connecting end cover is fixedly mounted on the outer surface of the mounting base, and the sixth bearing abuts against the sixth connecting end cover; a portion of the seventh connecting end cover is fixedly mounted on the outer surface of the mounting base, and the seventh bearing abuts against the seventh connecting end cover, and the fourth rotating shaft extends out of the seventh connecting end cover.

[0011] Furthermore, it also includes an upper cover, and another part of the first connecting end cover, another part of the second connecting end cover, another part of the third connecting end cover, another part of the fourth connecting end cover, another part of the fifth connecting end cover, another part of the sixth connecting end cover, and another part of the seventh connecting end cover are fixedly connected to the upper cover by bolts / screws, so that the mounting base and the upper cover are fixedly installed together.

[0012] The beneficial effects of the present application are as follows: the fan reducer provided by the present application has a simple structure, and since a reduction gear group consisting of multiple spur gears and helical gears is provided, the operation of the reducer is smoother; and since there are three-stage reduction gears, the deceleration effect is good and the vibration impact is weak. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model provides a schematic structural diagram of a fan reducer.

[0014] Figure 2 This is another structural schematic diagram of a fan reducer provided by the utility model. DETAILED DESCRIPTION

[0015] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0016] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence 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 certain embodiment and do not mean that the composition and / or sequence are necessary.

[0017] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0018] Please refer to Figure 1-2 The present application provides a wind turbine reducer (hereinafter referred to as the reducer), which includes a reduction mechanism 3 and a mounting base 2, wherein the reduction mechanism 3 is mounted on the mounting base 2, and the reduction mechanism 3 includes a first rotating shaft 31, a second rotating shaft 32, a third rotating shaft 33, a fourth rotating shaft 34, a first spur gear 35, a second spur gear 36, a third spur gear 37, a fourth spur gear 38, a first bevel gear 39, and a second bevel gear 310, wherein the first spur gear 35 is fixedly sleeved on the first rotating shaft 31, the second spur gear 36 and the third spur gear 37 are fixedly sleeved on the second rotating shaft 32, the fourth spur gear 38 and the first bevel gear 39 are fixedly sleeved on the third rotating shaft 33, and the second bevel gear 310 is fixedly sleeved on the fourth rotating shaft 34, wherein the first spur gear 35 is meshed with the second spur gear 36, the third spur gear 37 is meshed with the fourth spur gear 38, and the first bevel gear 39 is meshed with the second bevel gear 310.

[0019] In one embodiment of the present application, the reduction mechanism 3 also includes a first bearing 311 and a second bearing 312, and the first bearing 311 and the second bearing 312 are fixedly sleeved on the first rotating shaft 31, so that the first bearing 311 and the second bearing 312 are fixedly installed on the first rotating shaft 31; the first spur gear 35 is located between the first bearing 311 and the second bearing 312; the first bearing 311 and the second bearing 312 are both fixedly installed on the mounting base 2, so that the first rotating shaft 31 rotates relative to the first bearing 311 and the second bearing 312.

[0020] In one embodiment of the present application, the reduction mechanism 3 also includes a third bearing 313 and a fourth bearing 314, and the third bearing 313 and the fourth bearing 314 are fixedly sleeved on the second rotating shaft 32, so that the third bearing 313 and the fourth bearing 314 are fixedly installed on the second rotating shaft 32; the second spur gear 36 and the third spur gear 37 are located between the third bearing 313 and the fourth bearing 314; the third bearing 313 and the fourth bearing 314 are both fixedly installed on the mounting base 2, so that the second rotating shaft 32 rotates relative to the third bearing 313 and the fourth bearing 314.

[0021] In one embodiment of the present application, the reduction mechanism 3 also includes a fifth bearing 315 and a sixth bearing 316, and the fifth bearing 315 and the sixth bearing 316 are both fixedly mounted on the third rotating shaft 33, so that the fifth bearing 315 and the sixth bearing 316 are both fixedly mounted on the third rotating shaft 33; and the fourth spur gear 38 and the first bevel gear 39 are located between the fifth bearing 315 and the sixth bearing 316; the fifth bearing 315 and the sixth bearing 316 are fixedly mounted on the mounting base 2, so that the third rotating shaft 33 rotates relative to the fifth bearing 315 and the sixth bearing 316.

[0022] In one embodiment of the present application, the deceleration mechanism 3 also includes a seventh bearing 323, and the seventh bearing 323 is fixedly mounted on the fourth rotating shaft 34, so that the seventh bearing 323 is fixedly installed on the fourth rotating shaft 34; the seventh bearing 323 is fixedly installed on the mounting base 2, so that the fourth rotating shaft 34 rotates relative to the seventh bearing 323.

[0023] In one embodiment of the present application, a first semi-cylindrical card cavity 21, a second semi-cylindrical card cavity 22, a third semi-cylindrical card cavity 23, a fourth semi-cylindrical card cavity 24, a fifth semi-cylindrical card cavity 25, a sixth semi-cylindrical card cavity 26, and a seventh semi-cylindrical card cavity 27 are provided on the mounting base 2, wherein the first bearing 311 is fixedly installed in the first semi-cylindrical card cavity 21 by an interference fit connection, the second bearing 312 is fixedly installed in the second semi-cylindrical card cavity 22 by an interference fit connection, and the third bearing 311 is fixedly installed in the first semi-cylindrical card cavity 21 by an interference fit connection. The bearing 313 is fixedly installed in the third semi-cylindrical cavity 23 by an interference fit connection method, the fourth bearing 314 is fixedly installed in the fourth semi-cylindrical cavity 24 by an interference fit connection method, the fifth bearing 315 is fixedly installed in the fifth semi-cylindrical cavity 25 by an interference fit connection method, the sixth bearing 316 is fixedly installed in the sixth semi-cylindrical cavity 26 by an interference fit connection method, and the seventh bearing 323 is fixedly installed in the seventh semi-cylindrical cavity 27 by an interference fit connection method.

[0024] In one embodiment of the present application, a first connection end cover 317, a second connection end cover 318, a third connection end cover 319, a fourth connection end cover 320, a fifth connection end cover 321, a sixth connection end cover 322, and a seventh connection end cover 324 are fixedly connected to the mounting base 2. On the one hand, a portion of the first connection end cover 317 is fixedly mounted on the outer surface of the mounting base 2, and on the other hand, the first bearing 311 abuts against the first connection end cover 317, and one end of the first rotating shaft extends out of the first connection end cover 317; on the one hand, a portion of the second connection end cover 318 is fixedly mounted on the outer surface of the mounting base 2, and on the other hand, the second bearing 312 abuts against the second connection end cover 318; on the one hand, a portion of the third connection end cover 319 is fixedly mounted on the outer surface of the mounting base 2, and on the other hand, the The third bearing 313 abuts against the third connecting end cover 319; the fourth connecting end cover 320 is partially fixedly mounted on the outer surface of the mounting base 2, and the fourth bearing 314 abuts against the fourth connecting end cover 320; the fifth connecting end cover 321 is partially fixedly mounted on the outer surface of the mounting base 2, and the fifth bearing 315 abuts against the fifth connecting end cover 321; the sixth connecting end cover 322 is partially fixedly mounted on the outer surface of the mounting base 2, and the sixth bearing 316 abuts against the sixth connecting end cover 322; the seventh connecting end cover 324 is partially fixedly mounted on the outer surface of the mounting base 2, and the seventh bearing 323 abuts against the seventh connecting end cover 324, and the fourth rotating shaft 34 extends out of the seventh connecting end cover 324.

[0025] In one embodiment of the present application, the reducer also includes an upper cover 1, and another part of the first connecting end cover 317, another part of the second connecting end cover 318, another part of the third connecting end cover 319, another part of the fourth connecting end cover 320, another part of the fifth connecting end cover 321, another part of the sixth connecting end cover 322, and another part of the seventh connecting end cover 324 are fixedly connected to the upper cover 1 by bolts / screws, so that the mounting base 2 and the upper cover 1 are fixedly installed together.

[0026] The fan reducer provided in the present application has a simple structure. Since a reduction gear group consisting of multiple spur gears and helical gears is provided, the operation of the reducer is smoother. And since there are three-stage reduction gears, the reduction effect is good and the vibration impact is weak.

[0027] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A fan reducer, characterized in that: The invention comprises a reduction mechanism and a mounting base, wherein the reduction mechanism is mounted on the mounting base, and the reduction mechanism comprises a first rotating shaft, a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a first spur gear, a second spur gear, a third spur gear, a fourth spur gear, a first helical gear, and a second helical gear. The first spur gear is fixedly sleeved on the first rotating shaft, the second spur gear and the third spur gear are fixedly sleeved on the second rotating shaft, the fourth spur gear and the first helical gear are fixedly sleeved on the third rotating shaft, and the second helical gear is fixedly sleeved on the fourth rotating shaft, wherein the first spur gear is meshed with the second spur gear, the third spur gear is meshed with the fourth spur gear, and the first helical gear is meshed with the second helical gear.

2. The fan reducer according to claim 1, characterized in that: The reduction mechanism also includes a first bearing and a second bearing, and the first bearing and the second bearing are fixedly sleeved on the first rotating shaft, so that the first bearing and the second bearing are fixedly installed on the first rotating shaft; the first spur gear is located between the first bearing and the second bearing; the first bearing and the second bearing are both fixedly installed on the mounting base, so that the first rotating shaft rotates relative to the first bearing and the second bearing.

3. The fan reducer according to claim 2, characterized in that: The reduction mechanism also includes a third bearing and a fourth bearing, and the third bearing and the fourth bearing are fixedly sleeved on the second rotating shaft, so that the third bearing and the fourth bearing are fixedly installed on the second rotating shaft; the second spur gear and the third spur gear are located between the third bearing and the fourth bearing; the third bearing and the fourth bearing are both fixedly installed on the mounting base, so that the second rotating shaft rotates relative to the third bearing and the fourth bearing.

4. The fan reducer according to claim 3, characterized in that: The reduction mechanism also includes a fifth bearing and a sixth bearing, and the fifth bearing and the sixth bearing are both fixedly sleeved on the third rotating shaft, so that the fifth bearing and the sixth bearing are both fixedly installed on the third rotating shaft; and the fourth spur gear and the first bevel gear are located between the fifth bearing and the sixth bearing; the fifth bearing and the sixth bearing are fixedly installed on the mounting base, so that the third rotating shaft rotates relative to the fifth bearing and the sixth bearing.

5. The fan reducer according to claim 4, characterized in that: The deceleration mechanism also includes a seventh bearing, which is fixedly sleeved on the fourth rotating shaft, so that the seventh bearing is fixedly installed on the fourth rotating shaft; the seventh bearing is fixedly installed on the mounting base, so that the fourth rotating shaft rotates relative to the seventh bearing.

6. The fan reducer according to claim 5, characterized in that: A first semi-cylindrical card cavity, a second semi-cylindrical card cavity, a third semi-cylindrical card cavity, a fourth semi-cylindrical card cavity, a fifth semi-cylindrical card cavity, a sixth semi-cylindrical card cavity and a seventh semi-cylindrical card cavity are arranged on the mounting base, wherein the first bearing is fixedly mounted in the first semi-cylindrical card cavity by an interference fit connection mode, the second bearing is fixedly mounted in the second semi-cylindrical card cavity by an interference fit connection mode, the third bearing is fixedly mounted in the third semi-cylindrical card cavity by an interference fit connection mode, the fourth bearing is fixedly mounted in the fourth semi-cylindrical card cavity by an interference fit connection mode, the fifth bearing is fixedly mounted in the fifth semi-cylindrical card cavity by an interference fit connection mode, the sixth bearing is fixedly mounted in the sixth semi-cylindrical card cavity by an interference fit connection mode, and the seventh bearing is fixedly mounted in the seventh semi-cylindrical card cavity by an interference fit connection mode.

7. The fan reducer according to claim 6, characterized in that: A first connection end cover, a second connection end cover, a third connection end cover, a fourth connection end cover, a fifth connection end cover, a sixth connection end cover, and a seventh connection end cover are fixedly connected to the mounting base, wherein a portion of the first connection end cover is fixedly mounted on the outer surface of the mounting base, and the first bearing abuts against the first connection end cover, and one end of the first rotating shaft extends out of the first connection end cover; a portion of the second connection end cover is fixedly mounted on the outer surface of the mounting base, and the second bearing abuts against the second connection end cover; a portion of the third connection end cover is fixedly mounted on the outer surface of the mounting base, and the third bearing abuts against the third connection end cover; a portion of the fourth connection end cover is fixedly mounted on the outer surface of the mounting base, and the fourth bearing abuts against the fourth connection end cover; a portion of the fifth connection end cover is fixedly mounted on the outer surface of the mounting base, and the fifth bearing abuts against the fifth connection end cover; a portion of the sixth connection end cover is fixedly mounted on the outer surface of the mounting base, and the sixth bearing abuts against the sixth connection end cover; A portion of the seventh connection end cover is fixedly mounted on the outer surface of the mounting base, while the seventh bearing abuts against the seventh connection end cover, and the fourth rotating shaft extends out of the seventh connection end cover.

8. The fan reducer according to claim 7, characterized in that: It also includes an upper cover, and another part of the first connecting end cover, another part of the second connecting end cover, another part of the third connecting end cover, another part of the fourth connecting end cover, another part of the fifth connecting end cover, another part of the sixth connecting end cover, and another part of the seventh connecting end cover are fixedly connected to the upper cover by bolts / screws, so that the mounting base and the upper cover are fixedly installed together.

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