Split type fan protective cover on shaft inlet side of speed reducer

Abstract

The utility model discloses a speed reducer shaft inlet side split type fan protective cover which is characterized in that a left protective cover is provided with a first containing space, the left protective cover is provided with a plurality of groups of first arc-shaped through holes and a first semicircular notch, and the plurality of groups of first arc-shaped through holes are arranged around the first semicircular notch layer by layer; the right protective cover is provided with a second accommodating space and a plurality of groups of second arc-shaped through holes and second semicircular notches, and the plurality of groups of second arc-shaped through holes are arranged around the second semicircular notches layer by layer; the left protective cover is installed on the right protective cover, the first containing space is communicated with the second containing space, each group of first arc-shaped through holes and each group of second arc-shaped through holes form a circular air inlet hole, and the first semicircular notch and the second semicircular notch form a circular notch. The device is simple in structure and convenient and fast to disassemble and assemble, and brings much convenience to installation, debugging and later maintenance of the speed reducer. And moreover, the maintenance cost can be reduced, and the working efficiency of equipment maintenance is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of speed reducer fan guards and other related fields, and in particular to a split fan guard on the input shaft side of a speed reducer. Background Technology

[0002] When selecting a speed reducer, it's common to encounter situations where the chosen model's thermal power output fails to meet the operating conditions, and the power supply to the on-site fan and cooling water circulation is insufficient. A typical solution is to install a fan on the high-speed shaft of the speed reducer. The rotation of the high-speed shaft drives the fan, accelerating local airflow and thus resolving the insufficient thermal power output issue. For production safety, an integrated protective cover is usually installed around the fan. At the factory, the protective cover is bolted to the housing after passing through the high-speed shaft extension. Because the speed reducer's mounting holes are covered by the protective cover, it must be removed during installation and reinstalled only after equipment commissioning. Once the coupling between the motor and the speed reducer's high-speed shaft is connected, removing and installing the fan protective cover becomes even more inconvenient, especially for later maintenance and repair. Utility Model Content

[0003] In view of this, and to solve the above problems, the purpose of this utility model is to provide a split-type fan guard on the input shaft side of a speed reducer, comprising:

[0004] Left protective shield, right protective shield;

[0005] The left protective cover has a first accommodating space, and the left protective cover is provided with a plurality of first arc-shaped through holes and a first semi-circular notch, with the plurality of first arc-shaped through holes arranged in layers around the first semi-circular notch;

[0006] The right protective cover has a second accommodating space, and the right protective cover is provided with a plurality of sets of second arc-shaped through holes and a second semi-circular notch, with the plurality of sets of second arc-shaped through holes arranged in layers around the second semi-circular notch;

[0007] The left protective cover is installed on the right protective cover. The first accommodating space and the second accommodating space are connected. Each group of the first arc-shaped through holes and each group of the second arc-shaped through holes forms a circular air inlet. The first semi-circular notch and the second semi-circular notch form a circular notch.

[0008] The aforementioned split-type fan guard on the input shaft side of a speed reducer includes a plurality of mounting holes in both the left and right guards.

[0009] In the aforementioned split-type fan guard on the input shaft side of a speed reducer, the mounting hole is a U-shaped mounting hole.

[0010] In the aforementioned split-type fan guard on the shaft side of a speed reducer, each group has two first arc-shaped through holes and two second arc-shaped through holes.

[0011] The aforementioned split-type fan guard on the input shaft side of a speed reducer includes a left guard with five sets of first arc-shaped through holes and a right guard with five sets of second arc-shaped through holes.

[0012] In the aforementioned split-type fan guard on the input shaft side of a speed reducer, the number of mounting holes is not less than 2.

[0013] The positive effects of the above technical solution compared with the existing technology are:

[0014] By applying this utility model, a split-type fan guard on the input shaft side of a speed reducer is provided. This device has a left guard and a right guard. During later maintenance or repair, only the left or right guard needs to be removed. Its structure is simple, and disassembly and assembly are convenient and quick, bringing numerous conveniences to the installation, debugging, and subsequent maintenance of the speed reducer. Furthermore, it can reduce maintenance costs and improve the efficiency of equipment maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a split fan guard on the input shaft side of a speed reducer according to the present invention.

[0016] Figure 2 This is a side view of a split fan guard on the input shaft side of a speed reducer according to the present invention.

[0017] 1. Left protective cover; 2. Right protective cover; 3. First arc-shaped through hole; 4. First semi-circular notch; 5. Second arc-shaped through hole; 6. Second semi-circular notch; 7. Mounting hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0019] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0020] like Figures 1 to 2 As shown, a preferred embodiment of a split fan guard on the input shaft side of a speed reducer is provided, which includes: a left guard 1 and a right guard 2.

[0021] The left protective cover 1 has a first accommodating space. The left protective cover is provided with several sets of first arc-shaped through holes 3 and first semi-circular notches 4. The several sets of first arc-shaped through holes 3 are arranged in layers around the first semi-circular notches 4. The right protective cover 2 has a second accommodating space. The right protective cover 2 is provided with several sets of second arc-shaped through holes 5 and second semi-circular notches 6. The several sets of second arc-shaped through holes 5 are arranged in layers around the second semi-circular notches 6. The left protective cover 1 is installed on the right protective cover 2. The first accommodating space and the second accommodating space are connected. Each set of first arc-shaped through holes 3 and each set of second arc-shaped through holes 5 forms a circular air inlet. The first semi-circular notch 4 and the second semi-circular notch 6 form a circular notch.

[0022] In actual use, this device is equipped with a left protective cover 1 and a right protective cover 2. The two separate protective covers can be combined into a single protective cover and then placed over the fan on the high-speed shaft to improve the safety of the fan. In addition, several circular notches composed of the first semi-circular notch 4 and the second semi-circular notch 6 facilitate the installation of the high-speed shaft, and the circular air inlet composed of the first arc-shaped through hole 3 and the second arc-shaped through hole 5 facilitates the entry of air.

[0023] Based on the above, this utility model also has the following embodiments:

[0024] Furthermore, a split-type fan guard on the input shaft side of a speed reducer is provided, wherein both the left guard 1 and the right guard 2 are provided with a plurality of mounting holes 7. Specifically, the left guard 1 and the right guard 2 are mounted on the speed reducer through the mounting holes 7.

[0025] Furthermore, a split fan guard on the shaft side of a speed reducer is provided, wherein the mounting hole 7 is a U-shaped mounting hole.

[0026] Furthermore, a split-type fan guard on the shaft side of a speed reducer includes two first arc-shaped through holes 3 in each group and two second arc-shaped through holes 5 in each group. Specifically, each group of first arc-shaped through holes 3 and second arc-shaped through holes 5 consists of two identical and symmetrical arc-shaped through holes.

[0027] Furthermore, a split-type fan guard on the shaft side of a speed reducer is provided, wherein the left guard 1 is provided with five sets of first arc-shaped through holes 3, and the right guard 2 is provided with five sets of second arc-shaped through holes 5.

[0028] Furthermore, a split fan guard on the shaft side of a speed reducer, wherein the number of mounting holes is not less than 2.

[0029] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split-type fan guard on the input shaft side of a speed reducer, characterized in that, include: Left protective shield, right protective shield; The left protective cover has a first accommodating space, and the left protective cover is provided with a plurality of first arc-shaped through holes and a first semi-circular notch, with the plurality of first arc-shaped through holes arranged in layers around the first semi-circular notch; The right protective cover has a second accommodating space, and the right protective cover is provided with a plurality of sets of second arc-shaped through holes and a second semi-circular notch, with the plurality of sets of second arc-shaped through holes arranged in layers around the second semi-circular notch; The left protective cover is installed on the right protective cover. The first accommodating space and the second accommodating space are connected. Each group of the first arc-shaped through holes and each group of the second arc-shaped through holes forms a circular air inlet. The first semi-circular notch and the second semi-circular notch form a circular notch.

2. The split-type fan guard on the input shaft side of a speed reducer according to claim 1, characterized in that, Both the left and right protective covers are provided with several mounting holes.

3. A split-type fan guard on the input shaft side of a speed reducer according to claim 2, characterized in that, The mounting hole is a U-shaped mounting hole.

4. A split-type fan guard on the input shaft side of a speed reducer according to claim 1, characterized in that, The number of first arc-shaped through holes in each group is two, and the number of second arc-shaped through holes in each group is two.

5. A split-type fan guard on the input shaft side of a speed reducer according to claim 1, characterized in that, The left protective cover is provided with five sets of the first arc-shaped through holes, and the right protective cover is provided with five sets of the second arc-shaped through holes.

6. A split-type fan guard on the input shaft side of a speed reducer according to claim 2, characterized in that, The number of mounting holes is not less than 2.

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