Power harrow gearbox shell

Abstract

The utility model relates to a power rake gearbox shell which comprises a base, an output shaft box body is installed on the upper side of the base, a connecting shaft box body is installed on the side face of the output shaft box body, an input shaft box body is installed on the side, close to the input shaft box body, of the connecting shaft box body, and the output shaft box body is connected with the input shaft box body. And a communicating hole is formed in the joint of the output shaft box body and the input shaft box body. The communicating hole is formed in the connecting position of the input shaft box body and the output shaft box body, so that lubricating oil can ascend along the inner wall of the output shaft box body under the action of centrifugal force and enter the input shaft box body through the communicating hole, the input shaft is lubricated, and therefore the lubricating performance of the power harrow gear box is improved; and the service life of the power rake gearbox is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and in particular to a power rake gearbox housing. Background Technology

[0002] A power harrow is a tillage machine that is towed and driven by a tractor to perform soil pulverization and harrowing operations. Due to its advantages such as strong soil adaptability and good soil pulverization effect, the power harrow is widely used in field operations. The power harrow mainly relies on a gearbox to transmit power from the machine to the harrow body. During operation, the gearbox can output different speeds according to different soil types to achieve varying efficiencies.

[0003] However, the lubrication effect of existing power rake gearboxes is unstable, which accelerates the wear of the power rake gearbox and reduces its service life.

[0004] Based on the above-mentioned technical problems, this application proposes a power rake gearbox housing. Utility Model Content

[0005] The purpose of this utility model is to provide a power rake gearbox housing to solve the technical problems mentioned in the background art. This purpose is achieved through the following technical solution:

[0006] A power rake gearbox housing includes a base, an output shaft housing mounted on the upper side of the base, a connecting shaft housing mounted on the side of the output shaft housing, an input shaft housing mounted on the side of the connecting shaft housing near the output shaft housing, the output shaft housing and the input shaft housing being connected, and a connecting hole being provided at the connection between the output shaft housing and the input shaft housing.

[0007] Furthermore, an oil window is provided on the side of the output shaft housing, and an oil filling port is provided on the top of the output shaft housing.

[0008] Furthermore, an oil drain port is provided at the bottom of the connecting shaft housing.

[0009] Furthermore, a vent is provided on the upper part of the input shaft housing.

[0010] Furthermore, flow channels are provided at the bottom of the output shaft housing and the connecting shaft housing.

[0011] Furthermore, heat dissipation fins are provided on the top of both the output shaft housing and the input shaft housing.

[0012] The technical solutions provided in this application have at least the following technical effects or advantages:

[0013] By opening a connecting hole at the connection between the input shaft housing and the output shaft housing, lubricating oil can rise along the inner wall of the output shaft housing under the action of centrifugal force and enter the input shaft housing through the connecting hole, thereby lubricating the input shaft, improving the lubrication performance of the power rake gearbox, and extending the service life of the power rake gearbox. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view of the front side of the power rake gearbox in an embodiment of this application;

[0016] Figure 2 This is a perspective view of the rear side of the power rake gearbox in an embodiment of this application;

[0017] Figure 3 This is a schematic diagram of the front structure of the gearbox housing according to an embodiment of this application;

[0018] Figure 4 This is a schematic diagram of the rear structure of the gearbox housing according to an embodiment of this application;

[0019] Figure 5 This is a cross-sectional view of the power rake gearbox of an embodiment of this application.

[0020] Reference numerals in the attached drawings: 1. Base; 11. Output shaft; 12. First bevel gear; 2. Output shaft housing; 21. Oil inlet; 22. Oil window; 3. Connecting shaft housing; 31. Flow channel; 32. Oil outlet; 4. Input shaft housing; 41. Vent hole; 5. Connecting shaft; 51. Second bevel gear; 6. Input shaft; 7. Gear shifting mechanism; 8. Connecting hole; 9. Heat dissipation fins. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] like Figure 1-5 The power rake gearbox housing shown includes a base 1, an output shaft 11 rotatably mounted in the middle of the base 1, and a first bevel gear 12 fixed to the upper end of the output shaft 11. The base 1 is a rectangular plate, and the power rake gearbox housing is fixed to the power rake through the base 1, so that the output shaft 11 is connected to the output shaft of the power rake.

[0023] like Figures 1-5 As shown, a cylindrical output shaft housing 2 is mounted on the upper side of the base 1. A connecting shaft housing 3 is mounted on the front side of the output shaft housing 2. A connecting shaft 5 is rotatably mounted between the front end wall of the connecting shaft housing 3 and the rear end wall of the output shaft housing 2 via a bearing. One end of the connecting shaft 5 is located inside the connecting shaft housing 3, and the other end of the connecting shaft 5 extends into the output shaft housing 2 and meshes with the first bevel gear 12 through the second bevel gear 51.

[0024] like Figures 1-5 As shown, an input shaft housing 4 is installed on the side of the connecting shaft housing 3 near the output shaft housing 2. The top of the output shaft housing 2 is connected to the side of the input shaft housing 4, and a connecting hole 8 is provided at the connection between the output shaft housing 2 and the input shaft housing 4. An input shaft 6 is rotatably mounted between the front wall of the connecting shaft housing 3 and the rear wall of the input shaft housing 4 via bearings. One end of the input shaft 6 extends out of the input shaft housing 4, and the other end extends into the connecting shaft housing 3 and is connected to the connecting shaft 5 via a shifting mechanism 7. The shifting mechanism 7 includes two sets of gears with different transmission ratios. The two sets of gears are respectively installed on the input shaft 6 and the connecting shaft 5. The shifting mechanism 7 moves the gears on the input shaft 6 to make different gears mesh with the gears on the connecting shaft 5, thereby realizing the speed change of the output shaft 11. The speed change structure and principle of the power rake gearbox are existing technologies and will not be described in detail here.

[0025] like Figure 1-5 As shown, the top of the output shaft housing 2 has an oil inlet 21 for adding lubricating oil into the gearbox housing. An oil window 22 is located on the rear side of the output shaft housing 2 for checking the lubricating oil level and color within the gearbox housing. A flow channel 31 is provided between the bottom of the output shaft housing 2 and the connecting shaft housing 3 to allow lubricating oil to flow from the output shaft housing 2 into the connecting shaft housing 3, thus lubricating the connecting shaft 5. A vent 41 is provided at the top of the input shaft housing 4 to allow excess gas inside the gearbox housing to slowly release to the outside, while preventing external dust and moisture from entering, thereby effectively balancing the air pressure inside and outside the gearbox and maintaining a stable internal environment. An oil drain port 32 is located at the bottom of the connecting shaft housing 3 to drain lubricating oil from the gearbox housing during maintenance.

[0026] Preferably, heat dissipation fins 9 are fixed to the top of the output shaft housing 2 and the input shaft housing 4. The heat dissipation fins 9 can improve the heat dissipation performance of the gearbox and improve the overall structural strength of the gearbox.

[0027] The working principle of this application embodiment is as follows:

[0028] Lubricating oil is injected into the output shaft housing through the oil inlet. Some of the lubricating oil flows through the channel into the connecting shaft housing, thus lubricating both the output shaft and the connecting shaft. When the gearbox is working, the rotation of the first bevel gear causes the lubricating oil to rise along the inner wall of the output shaft housing under the action of centrifugal force, and enters the input shaft housing through the connecting hole, thereby lubricating the input shaft. This improves upon the previous method where only a small amount of lubricating oil could be driven by the rotation of the connecting shaft to lubricate the input shaft, optimizing the lubrication effect and extending the service life of the power rake gearbox.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A power rake gear box housing characterized by, The base is provided with an output shaft box body on the upper side, a connecting shaft box body on the side of the output shaft box body, an input shaft box body on the side of the connecting shaft box body close to the output shaft box body, and a communication hole is arranged at the joint of the output shaft box body and the input shaft box body.

2. A power rake gear box housing according to claim 1, characterised in that, An oil window is arranged on the side of the output shaft box body, and an oil injection port is arranged on the top of the output shaft box body.

3. A power rake gear box housing as claimed in claim 1, wherein, An oil discharge port is arranged on the bottom of the connecting shaft box body.

4. A power rake gear box housing as claimed in claim 1, wherein, A ventilation hole is arranged on the upper part of the input shaft box body.

5. A power rake gear box housing as claimed in claim 1, wherein, A flow channel is arranged on the bottom of the output shaft box body and the connecting shaft box body.

6. A power rake gear box housing as claimed in claim 1, wherein, Heat dissipation fins are arranged on the top of the output shaft box body and the input shaft box body.

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