Gearbox for low-noise combined gearbox

Abstract

The utility model relates to the technical field of gear boxes, and discloses a low-noise gear box for a combined gearbox, a semiconductor chilling plate is arranged on the front surface of a cooling box, a water outlet pipe and a circulating pipe are respectively arranged on two sides of the cooling box from left to right, and a heat dissipation plate is arranged at the lower end of the water outlet pipe in a gear box main body. A cooling pipe is further arranged in the heat dissipation plate, a sound insulation mechanism is further arranged on the inner side of the gearbox body and comprises a second sound insulation plate and a first sound insulation plate which are arranged on the inner side of the gearbox body from inside to outside, and the space between the second sound insulation plate and the first sound insulation plate is filled with a filling layer. And a sound absorption pad is arranged between the second sound insulation plate and the filling layer. The gearbox body can have good sound insulation through the first sound insulation plate and the second sound insulation plate, the noise reduction performance of the gearbox body can be improved through the filling layer and the sound absorption pad, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to a low-noise combined gear box for a transmission case. Background Art

[0002] A combined gearbox usually refers to a gearbox system that combines different components to form a gearbox with more gears and better performance characteristics. The use of a gearbox is inseparable from the use of a gearbox. The interior of the gearbox can contain a variety of gears and transmission mechanisms to achieve different speed ratios and transmission efficiency, making it widely used in various industrial, agricultural, marine and other fields.

[0003] A Chinese patent discloses a gearbox with a noise reduction mechanism (publication number CN218152265U). The patented technology noise reduction and sound absorbing panels can absorb the sound inside the gearbox, thereby reducing the spread of noise, and a vacuum embedded liner is installed on the inner wall of the gearbox. The vacuum embedded liner is in a vacuum state, so that the sound inside and outside the gearbox cannot be transmitted out or in, further enhancing the noise reduction effect of the gearbox. In addition, the noise reduction and sound absorbing panels will generate heat by friction during the sound absorption process, and the adaptive external heat conduction plate and grille heat sink group can effectively reduce the temperature of the noise reduction and sound absorbing panels and reduce the consumption of the sound absorbing panels.

[0004] However, existing noise reduction methods for gearboxes often use noise-reducing panels, resulting in poor noise reduction effectiveness and causing noise to be emitted outward, impacting nearby personnel. For example, the aforementioned reference document utilizes a single noise-reducing panel. In actual use, using a single layer of noise-reducing panels to reduce gearbox noise results in poor noise reduction effectiveness and, when the noise level is high, still causes noise to be emitted outward, impacting nearby personnel. Therefore, those skilled in the art have provided a low-noise modular gearbox for a gearbox to address the issues raised in the aforementioned background art. Utility Model Content

[0005] The purpose of the present invention is to provide a low-noise combined gearbox for a transmission case to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A low-noise combined gearbox includes a gearbox body, a cooling box mounted on the upper surface of the gearbox body, a semiconductor refrigeration plate provided on the front surface of the cooling box, and a water outlet pipe and a circulation pipe provided on both sides of the cooling box from left to right, respectively. A heat sink is provided at the lower end of the water outlet pipe inside the gearbox body, a cooling pipe is further provided inside the heat sink, and a sound insulation mechanism is further provided on the inner side of the gearbox body. The sound insulation mechanism includes a second sound insulation board and a first sound insulation board provided on the inner side of the gearbox body from inside to outside, a filling layer is filled between the second sound insulation board and the first sound insulation board, and a sound-absorbing pad is provided between the second sound insulation board and the filling layer.

[0008] As a further solution of the present invention: a water pump is further provided inside the cooling box, and a water outlet end of the water pump is connected to one end of a water outlet pipe.

[0009] As a further solution of the present invention: the lower end of the water outlet pipe passes through the upper surface of the heat sink and is connected to the cooling pipe, and the lower end of the circulation pipe passes through the upper surface of the heat sink and is also connected to the cooling pipe.

[0010] As a further solution of the present invention: the hot end of the semiconductor refrigeration plate is arranged outside the cooling box, and the cold end of the semiconductor refrigeration plate is arranged inside the cooling box.

[0011] As a further solution of the present invention: a U-shaped bracket is installed on the front surface of the cooling box, and a heat dissipation fan is installed on the front surface of the bracket.

[0012] As a further solution of the present invention: the first sound insulation board and the second sound insulation board have the same thickness, and both the first sound insulation board and the second sound insulation board are glass fiber sound insulation boards.

[0013] As a further solution of the present invention: the material of the filling layer is rock wool, and the material of the sound-absorbing pad is sound-insulating foam.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model provides a first sound insulation board, a filling layer, a sound-absorbing pad and a second sound insulation board in the sound insulation mechanism. In this way, the first sound insulation board and the second sound insulation board can make the gearbox body have a good sound insulation purpose, and the filling layer and the sound-absorbing pad can improve the noise reduction performance of the gearbox body, so that the noise generated inside the gearbox can be prevented from affecting the surrounding personnel, and the utility model has good practicality.

[0016] 2. The utility model is provided with a cooling box, a semiconductor refrigeration sheet, a water outlet pipe, a heat dissipation fan, a heat sink, a cooling pipe, a circulation pipe and a water pump. In this way, the water pump inside the cooling box can be used to pump out the cooling water inside the cooling box and enter the water outlet pipe, and then enter the cooling pipe to circulate and absorb the heat generated inside the gear box through the heat sink. Finally, the heat is returned to the cooling box through the circulation pipe to achieve the purpose of recycling and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a gearbox for a low-noise combined transmission;

[0018] Figure 2 This is a schematic diagram of the structure of a heat sink in a gearbox for a low-noise combined transmission;

[0019] Figure 3 This is a schematic diagram of the structure of a cooling pipe in a gearbox for a low-noise combined transmission;

[0020] Figure 4 The diagram is a structural diagram of a sound insulation mechanism in a gearbox for a low-noise combined transmission.

[0021] In the figure: 1. Gearbox body; 2. Cooling box; 21. Semiconductor refrigeration plate; 22. Water outlet pipe; 23. Bracket; 231. Cooling fan; 24. Heat sink; 241. Cooling pipe; 25. Circulation pipe; 26. Water pump; 3. Sound insulation mechanism; 31. First sound insulation board; 32. Filling layer; 33. Sound-absorbing pad; 34. Second sound insulation board. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0023] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0026] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0027] Example 1:

[0028] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, this embodiment proposes a low-noise combined gearbox for a transmission, including a gearbox body 1, a cooling box 2 is installed on the upper surface of the gearbox body 1, a semiconductor refrigeration plate 21 is provided on the front surface of the cooling box 2, and a water outlet pipe 22 and a circulation pipe 25 are provided on both sides of the cooling box 2 from left to right, a heat sink 24 is provided at the lower end of the water outlet pipe 22 inside the gearbox body 1, a cooling pipe 241 is further provided inside the heat sink 24, and a sound insulation mechanism 3 is further provided on the inner side of the gearbox body 1 to insulate The sound insulation mechanism 3 includes a second sound insulation plate 34 and a first sound insulation plate 31 arranged on the inner side of the gearbox body 1 from the inside to the outside. A filling layer 32 is filled between the second sound insulation plate 34 and the first sound insulation plate 31, and a sound-absorbing pad 33 is arranged between the second sound insulation plate 34 and the filling layer 32. This arrangement utilizes the first sound insulation plate 31 and the second sound insulation plate 34 in the sound insulation mechanism 3 to achieve the purpose of highly efficient sound insulation of the gearbox body 1, and the sound-absorbing pad 33 and the filling layer 32 can improve the purpose of sound insulation and noise reduction, thereby having good practicality.

[0029] Example 2:

[0030] The solution in Example 1 is further introduced below in conjunction with a specific working method, as described below:

[0031] like Figure 3As shown, as a preferred embodiment, on the basis of the above method, a water pump 26 is further provided inside the cooling box 2, and the water outlet end of the water pump 26 is connected to one end of the water outlet pipe 22. This arrangement utilizes the operation of the water pump 26 to pump out the cooling water inside the cooling box 2 and enter the water outlet pipe 22, so that it can subsequently enter the cooling pipe 241 to absorb heat inside the gear box body 1, and has good practicality.

[0032] like Figure 2 and Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the lower end of the water outlet pipe 22 passes through the upper surface of the heat sink 24 and is connected to the cooling pipe 241, and the lower end of the circulation pipe 25 passes through the upper surface of the heat sink 24 and is also connected to the cooling pipe 241. This arrangement utilizes the water outlet pipe 22 to be connected to the cooling pipe 241, so that the cooling water can enter the interior of the cooling pipe 241, and the cooling water can be circulated to the interior of the cooling box 2 through the circulation pipe 25, thereby achieving the purpose of circulation.

[0033] like Figure 2 and Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the hot end of the semiconductor refrigeration plate 21 is arranged on the outside of the cooling box 2, and the cold end of the semiconductor refrigeration plate 21 is arranged inside the cooling box 2, and the front surface of the cooling box 2 is installed with a "U"-shaped bracket 23, and the front surface of the bracket 23 is installed with a heat dissipation fan 231. This arrangement utilizes the semiconductor refrigeration plate 21 to cool the cooling water entering the cooling box 2, and can dissipate heat for the semiconductor refrigeration plate 21 through the heat dissipation fan 231, and has good practicality.

[0034] like Figure 4 As shown, as a preferred embodiment, on the basis of the above method, further, the first sound insulation board 31 and the second sound insulation board 34 have the same thickness, and the first sound insulation board 31 and the second sound insulation board 34 are both glass fiber sound insulation boards, the filling layer 32 is made of rock wool, and the sound absorbing pad 33 is made of sound insulation foam. This arrangement utilizes the first sound insulation board 31 and the second sound insulation board 34 to make the gearbox body 1 have a good sound insulation purpose, and the filling layer 32 and the sound absorbing pad 33 can improve the noise reduction performance of the gearbox body 1, thereby preventing the noise generated inside the gearbox body 1 from affecting the surrounding personnel.

[0035] Example 3:

[0036] The solutions in Example 1 and Example 2 are further introduced below in conjunction with specific working methods, as described below:

[0037] Specifically, when the low-noise combined transmission gearbox is working / in use: first, when the gearbox body 1 is cooled, the water pump 26 inside the cooling box 2 can be used to pump out the cooling water inside and enter the water outlet pipe 22, and then enter the cooling pipe 241 inside the heat sink 24 for circulation, so that the heat generated inside the gearbox body 1 can be absorbed by the heat sink 24, and finally returned to the cooling box 2 through the circulation pipe 25 for recycling. The semiconductor refrigeration plate 21 can be used to cool the cooling water entering the cooling box 2, and the heat dissipation fan 231 can be used to dissipate heat for the semiconductor refrigeration plate 21, effectively reducing costs. At the same time, a sound insulation mechanism 3 is also provided on the inner side of the gearbox body 1. The first sound insulation board 31 and the second sound insulation board 34 can make the gearbox body 1 have good sound insulation, and the filling layer 32 and the sound-absorbing pad 33 can improve the noise reduction performance of the gearbox body 1, so that the noise generated inside the gearbox body 1 can be prevented from affecting the surrounding personnel, and the practicality is good.

[0038] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A low-noise combined transmission gearbox, comprising a gearbox body (1), characterized in that: A cooling box (2) is installed on the upper surface of the gearbox body (1), a semiconductor refrigeration plate (21) is provided on the front surface of the cooling box (2), and a water outlet pipe (22) and a circulation pipe (25) are provided on both sides of the cooling box (2) from left to right, respectively. A heat sink (24) is provided at the lower end of the water outlet pipe (22) inside the gearbox body (1), and a cooling pipe (241) is also provided inside the heat sink (24). A sound insulation mechanism (3) is also provided on the inner side of the gearbox body (1), and the sound insulation mechanism (3) includes a second sound insulation board (34) and a first sound insulation board (31) provided on the inner side of the gearbox body (1) from inside to outside, a filling layer (32) is filled between the second sound insulation board (34) and the first sound insulation board (31), and a sound absorbing pad (33) is provided between the second sound insulation board (34) and the filling layer (32).

2. A low-noise combined transmission gearbox according to claim 1, characterized in that: A water pump (26) is also provided inside the cooling box (2), and a water outlet end of the water pump (26) is connected to one end of the water outlet pipe (22).

3. The low-noise combined transmission gearbox according to claim 1, characterized in that: The lower end of the water outlet pipe (22) passes through the upper surface of the heat dissipation plate (24) and is in communication with the cooling pipe (241), and the lower end of the circulation pipe (25) passes through the upper surface of the heat dissipation plate (24) and is also in communication with the cooling pipe (241).

4. A low-noise combined transmission gearbox according to claim 1, characterized in that: The hot end of the semiconductor refrigeration plate (21) is arranged outside the cooling box (2), and the cold end of the semiconductor refrigeration plate (21) is arranged inside the cooling box (2).

5. The low-noise combined transmission gearbox according to claim 1, characterized in that: A U-shaped bracket (23) is installed on the front surface of the cooling box (2), and a heat dissipation fan (231) is installed on the front surface of the bracket (23).

6. The low-noise combined transmission gearbox according to claim 1, characterized in that: The first sound insulation board (31) and the second sound insulation board (34) have the same thickness, and both the first sound insulation board (31) and the second sound insulation board (34) are glass fiber sound insulation boards.

7. The low-noise combined transmission gearbox according to claim 1, characterized in that: The material of the filling layer (32) is rock wool, and the material of the sound-absorbing pad (33) is sound-insulating foam.

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