A sound absorbing housing for a speed reducer

Abstract

This utility model discloses a sound-absorbing housing for a speed reducer, relating to the technical field of speed reducers. The utility model includes a fixed chamber, a fixed column, a sealing plate, and a frame. Sound-absorbing cotton is fixed to the lower outer side of the fixed chamber, and a frame is fixed to the outer side of the sound-absorbing cotton. A fixed plate is fixed to the bottom of the fixed chamber, and a vibration-absorbing block is fixed to the bottom of the fixed plate. A sealing plate is provided on the upper front side of the fixed chamber. A fixed column is fixed through the center of the top of the fixed chamber, and reinforcing frames are fixed to the upper sides of both sides of the fixed chamber. This utility model, by setting up a fixed chamber, a fixed column, a sealing plate, and a frame, solves the problem of high overall equipment vibration noise during speed reducer housing vibration, and the high noise level caused by the lack of a sound-absorbing structure in the speed reducer housing. The advantages of this utility model are: the overall equipment noise is lower during speed reducer housing vibration, and the housing can absorb sound, reducing the noise level.

Description

Technical Field

[0001] This utility model belongs to the technical field of speed reducers, and in particular relates to a sound-absorbing housing for a speed reducer. Background Technology

[0002] The reducer's housing serves as its base and frame, primarily supporting and securing all shaft components to ensure precise relative positions of gears and bearings, thus guaranteeing transmission accuracy. Simultaneously, the housing forms a sealed space, effectively protecting internal precision transmission components from dust, moisture, and foreign matter. It also acts as an "oil pool" to store lubricating oil, ensuring continuous lubrication and preventing leakage through seals. Furthermore, the heat generated during operation is dissipated into the air through the housing's large surface area, further enhanced by cooling fins. However, the reducer housing still has the following drawbacks in practical use:

[0003] When the reducer is working, the internal structure of the reducer vibrates as the motor drives the internal structure. This vibration of the internal structure causes the external equipment to vibrate, which generates noise and results in a relatively high overall noise level in the equipment.

[0004] Secondly, during operation, the internal reduction gears of the reducer generate meshing noise, which is transmitted into the space. This results in higher noise levels during operation, affecting the overall noise level of the equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a sound-absorbing housing for a speed reducer. By setting a fixed chamber, a fixed column, a closed plate, and a frame, it solves the problem that the overall equipment vibration noise is large during the vibration of the speed reducer housing, and that the noise level is large due to the lack of a sound-absorbing structure in the speed reducer housing.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a sound-absorbing housing for a speed reducer, comprising a fixed chamber, a fixed column, a sealing plate, and a frame. Sound-absorbing cotton is fixed to the lower outer side of the fixed chamber, and a frame is fixed to the outer side of the sound-absorbing cotton. A fixed plate is fixed to the bottom of the fixed chamber, and a vibration-absorbing block is fixed to the bottom of the fixed plate. A sealing plate is provided on the upper front side of the fixed chamber. A fixed column is fixed through the center of the top of the fixed chamber. Reinforcing frames are fixed to the upper sides of both sides of the fixed chamber. The fixed chamber serves as the main structure, housing the gear set. Sound-absorbing cotton is provided on its lower outer side to absorb operating noise, and the outside is sealed and fixed by the frame. The bottom is connected to the vibration-absorbing block through the fixed plate to dissipate vibration energy. A detachable sealing plate is provided on the upper front side to seal the installation port. The fixed column in the center of the top is used to add gear oil, and the reinforcing frames on the upper sides are used to enhance the overall structural strength.

[0008] Furthermore, an installation port is fixedly provided through the upper front side of the fixed compartment, and a movable sleeve is fixedly provided on the upper rear side wall of the fixed compartment. The installation port is located on the upper front side of the fixed compartment and is used for the installation and maintenance of the gear set. The movable sleeve on the rear side wall is used to support the driven gear shaft.

[0009] Furthermore, a movable sleeve two is fixed on one side wall of the fixed chamber, and a shaft seal one is fixed through the lower part of the fixed chamber away from the movable sleeve two. The central axes of the movable sleeve two and the shaft seal one are set on the same straight line. The movable sleeve two is fixed to one side wall of the chamber and together with the shaft seal one on the other side lower part support the drive gear shaft. The axes of the two coincide to ensure transmission alignment.

[0010] Furthermore, the fixing column is threadedly connected to a knob bolt along the central axis. The head of the knob bolt is located at the top of the fixing column. The knob bolt is threadedly connected inside the fixing column. After being unscrewed, gear oil can be added into the compartment.

[0011] Furthermore, the sealing plate is located on the side of the installation port away from the fixed chamber. A shaft seal two is fixedly fixed through the center of the sealing plate. Mounting bolts are inserted through the four corners of the sealing plate. The mounting bolts pass through the sealing plate and are screwed into the installation port. The sealing plate is fixed to the installation port by the mounting bolts. The shaft seal two in the center is used to seal the driven gear output shaft and is coaxial with the movable sleeve one.

[0012] Furthermore, the vibration-absorbing block and the fixing plate are both movably connected inside the sound-absorbing cotton. The bottom of the vibration-absorbing block, the sound-absorbing cotton, and the sleeve frame are all fixed with a mounting plate. The vibration-absorbing block and the fixing plate are both embedded inside the sound-absorbing cotton. All three, together with the sleeve frame, are fixed to the mounting plate at the bottom and connected to external equipment by bolts.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of excessive vibration and noise in the reducer housing during vibration by setting up a fixed chamber, a fixed column, a sealing plate, and a sleeve frame. The driving gear is placed in the fixed chamber, and each connecting shaft is connected to the shaft seal through the movable sleeve and the shaft seal. The input shaft is interference-fitted with the shaft seal. Then, the driven gear connecting shaft is movably connected to the movable sleeve. By installing the sealing plate, the output shaft of the driven gear is interference-fitted with the shaft seal. After inserting the mounting bolts into the sealing plate and screwing them into the mounting opening, the installation is completed. During operation, the vibration in the fixed chamber is transmitted to the fixed plate and then to the vibration-absorbing block. The vibration-absorbing block converts the vibration into heat, reducing noise and making the reducer housing vibrate less and the overall equipment noise less during vibration.

[0015] This invention solves the problem of high noise levels caused by the lack of sound-absorbing structure in the reducer housing by setting up a fixed chamber and a sleeve frame. After noise is generated in the fixed chamber, it is transmitted to the surface of the fixed chamber and then to the sound-absorbing cotton in the sleeve frame. After absorbing part of the noise in the fixed chamber, the noise transmitted from the fixed chamber is reduced. The reducer housing contains a sound-absorbing structure, resulting in a lower noise level. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of a sound-absorbing housing for a speed reducer;

[0018] Figure 2 This is a three-dimensional view of the structure of the fixed compartment after it has been cut open.

[0019] Figure 3 This is a three-dimensional view of the structure after the fixed column section has been cut open.

[0020] Figure 4 This is a three-dimensional structural diagram of the closed plate;

[0021] Figure 5 This is a view after the frame section has been cut open.

[0022] Figure label:

[0023] 1. Fixed chamber; 101. Mounting port; 102. Movable sleeve one; 103. Reinforcing frame; 104. Shaft seal one; 105. Movable sleeve two; 2. Fixed column; 201. Knob bolt; 3. Sealing plate; 301. Mounting bolt; 302. Shaft seal two; 4. Sleeve frame; 401. Sound-absorbing cotton; 402. Vibration-absorbing block; 403. Fixed plate; 404. Mounting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0025] Please see Figure 1-5 This utility model relates to a sound-absorbing housing for a speed reducer, comprising a fixed chamber 1, a fixed column 2, a sealing plate 3, and a sleeve frame 4. Sound-absorbing cotton 401 is fixed to the lower outer side of the fixed chamber 1. The fixed chamber 1 houses the gear structure for the speed reduction mechanism. The sound-absorbing cotton 401 absorbs some of the noise generated during the operation of the fixed chamber 1. The sleeve frame 4 is fixed to the outer side of the sound-absorbing cotton 401, sealing the outer side of the cotton 401 and providing support for its mounting on the mounting plate 404. A fixed plate 403 is fixed to the bottom of the fixed chamber 1, and a [missing information - likely a component or element] is fixed to the bottom of the fixed plate 403. Vibration-absorbing block 402 and fixing plate 403 are installed and set to the fixing chamber 1. The vibration generated in the fixing chamber 1 is transmitted through the fixing plate 403 and absorbed by the vibration-absorbing block 402. A sealing plate 3 is provided on the upper front side of the fixing chamber 1, which seals the installation port 101 of the fixing chamber 1. A fixing column 2 is fixed through the center of the top of the fixing chamber 1. The fixing column 2 provides gear oil to be added to the fixing chamber 1. Reinforcing frames 103 are fixed on the upper sides of the fixing chamber 1 to increase the strength of the fixing chamber 1.

[0026] Specifically, the upper front side of the fixed chamber 1 is fixed with an installation port 101, and the upper rear side wall of the fixed chamber 1 is fixed with a movable sleeve 102. The fixed chamber 1 enters and exits the gear structure inside the reducer through the installation port 101, and the movable sleeve 102 is used to install the driven gear connecting shaft.

[0027] Furthermore, a movable sleeve 2 105 is fixed on one side wall inside the fixed chamber 1, and a shaft seal 104 is fixed through the lower part of the fixed chamber 1 away from the movable sleeve 2 105. The central axes of the movable sleeve 2 105 and the shaft seal 104 are set on the same straight line. The movable sleeve 2 105 is movably connected to the mounting shaft of the drive gear, and the structure connecting the drive gear and the input shaft is movably connected through the shaft seal 104.

[0028] Furthermore, a knob bolt 201 is threadedly connected to the fixed column 2 along the central axis. The bolt head of the knob bolt 201 is located at the top of the fixed column 2. By rotating the knob bolt 201, gear oil can be introduced into the fixed chamber 1 after the fixed column 2 is unscrewed.

[0029] Furthermore, the sealing plate 3 is located on the side of the mounting opening 101 away from the fixed chamber 1. A shaft seal 302 is fixedly fixed through the center of the sealing plate 3. Mounting bolts 301 are inserted through the four corners of the sealing plate 3. After passing through the sealing plate 3, the mounting bolts 301 are screwed into the mounting opening 101. The central axis of the shaft seal 302 is set on the same axis as the central axis of the movable sleeve 102. After being movably connected to the movable sleeve 102 through the connecting shaft of the driven gear, and the external connecting shaft is movably connected to the shaft seal 302 on the sealing plate 3, after the mounting bolts 301 are inserted into the sealing plate 3, screwed into the mounting opening 101 and pressed, the sealing plate 3 is installed in the mounting opening 101 and installed together with the mounting opening 101.

[0030] The operation process of this embodiment is as follows: During operation, the driving gear is placed in the fixed chamber 1, and each connecting shaft is connected through the movable sleeve 105 and the shaft seal 104. The input shaft is interference-fitted with the shaft seal 104. Then, the driven gear connecting shaft is movably connected to the movable sleeve 102. Then, by installing the sealing plate 3, the output shaft of the driven gear is interference-fitted with the shaft seal 302. Then, by inserting the mounting bolt 301 into the sealing plate 3 and screwing it into the mounting port 101, the installation is completed. During operation, the vibration in the fixed chamber 1 is transmitted to the fixed plate 403 and then to the vibration absorption block 402. The vibration is converted into heat by the vibration absorption block 402, reducing noise. Specific Implementation Example 2

[0031] Please see Figure 1 , 2 5. Based on the first specific embodiment, the vibration-absorbing block 402 and the fixing plate 403 are both movably connected inside the sound-absorbing cotton 401. The bottom of the vibration-absorbing block 402, the sound-absorbing cotton 401 and the sleeve frame 4 are jointly fixed with the mounting plate 404. The mounting plate 404 is installed by inserting the mounting bolts and then screwing it into the installation equipment.

[0032] The operation process of this embodiment is as follows: During operation, after noise is generated in the fixed chamber 1, the noise is transmitted to the surface of the fixed chamber 1 and then to the sound-absorbing cotton 401 in the frame 4. After absorbing part of the noise in the fixed chamber 1, the noise transmitted from the fixed chamber 1 is reduced.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sound-absorbing housing of a speed reducer, comprising a fixed bin (1), a fixed column (2), a closing plate (3) and a sleeve frame (4), characterized in that: The lower outer side of the fixed chamber (1) is fixed with sound-absorbing cotton (401), and a frame (4) is fixed on the outer side of the sound-absorbing cotton (401). A fixed plate (403) is fixed at the bottom of the fixed chamber (1), and a vibration-absorbing block (402) is fixed at the bottom of the fixed plate (403). A closed plate (3) is provided on the upper front side of the fixed chamber (1). A fixed column (2) is fixed through the center of the top of the fixed chamber (1). Reinforcing frames (103) are fixed on the upper sides of both sides of the fixed chamber (1).

2. A sound absorbing housing for a speed reducer according to claim 1, characterized in that: The upper front part of the fixed compartment (1) is fixed with an installation port (101), and the upper rear side wall of the fixed compartment (1) is fixed with a movable sleeve (102).

3. A sound absorbing housing for a speed reducer according to claim 1, characterized in that: A movable sleeve 2 (105) is fixed on one side wall inside the fixed chamber (1). A shaft seal 1 (104) is fixed through the lower part of the fixed chamber (1) away from the movable sleeve 2 (105). The central axes of the movable sleeve 2 (105) and the shaft seal 1 (104) are set on the same straight line.

4. A sound absorbing housing for a speed reducer according to claim 1, wherein: The fixed column (2) is threaded along the central axis with a knob bolt (201), and the bolt head of the knob bolt (201) is located at the top of the fixed column (2).

5. A sound absorbing enclosure for a speed reducer according to claim 2, wherein: The sealing plate (3) is located on the side of the installation port (101) away from the fixed chamber (1). A shaft seal (302) is fixed through the center of the sealing plate (3). Installation bolts (301) are inserted through the four corners of the sealing plate (3). The installation bolts (301) pass through the sealing plate (3) and are screwed into the installation port (101).

6. A sound absorbing enclosure for a speed reducer according to claim 1, wherein: The vibration-absorbing block (402) and the fixing plate (403) are both movably connected inside the sound-absorbing cotton (401), and the bottom of the vibration-absorbing block (402), the sound-absorbing cotton (401) and the frame (4) are all fixed with a mounting plate (404).

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