A tractor transmission case

Abstract

This utility model discloses a tractor transmission housing, comprising a transmission housing body. Two sets of heat dissipation fins are welded to the top of the transmission housing body. U-shaped first support frames are respectively provided on both sides of the two sets of heat dissipation fins. A movable component is provided at the upper end of the transmission housing body. A second support frame is provided between the two sets of heat dissipation fins, and a screw is rotatably connected to the upper center of the second support frame. The movable component consists of two cleaning mechanisms and a connecting plate. The connecting plate is located between the two cleaning mechanisms, and a bolt is installed at the upper end of the connecting plate. The heat dissipation fins pass through the cleaning mechanisms and are slidably connected to them. The heat dissipation fins dissipate heat from the transmission housing, improving its heat dissipation efficiency. The screw raises the height of the movable component, allowing the cleaning mechanisms to slide on the surface of the heat dissipation fins, cleaning oil stains adhering to the surface of the heat dissipation fins and ensuring the heat dissipation efficiency of the fins.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a tractor transmission housing. Background Technology

[0002] A tractor is a self-propelled power unit used to tow and drive agricultural machinery to complete various mobile tasks. It can also be used for stationary work. It consists of an engine, transmission, running gear, steering, hydraulic suspension, power take-off, electrical instruments, driving controls, and traction systems or devices. Engine power is transmitted to the drive wheels through the transmission system, enabling the tractor to move. The basic structure of a modern tractor's transmission system includes an engine providing power, which is then connected to a gearbox. At the rear of the gearbox is a power distribution box, which serves two purposes: controlling the vehicle's shape and forward / rear drive, and also supporting the operation of agricultural machinery.

[0003] Overheating of the transmission case is a common problem for tractors, especially during heavy-duty operations such as deep plowing, tilling, and harvesting. Overheating can lead to premature failure of the transmission fluid (gear oil), damage to seals, abnormal wear of gears and bearings, and in severe cases, even deformation of the transmission case and burning of the clutch plates. The main cooling methods for transmission cases are passive air cooling and active air cooling. However, the limited contact area between the airflow and the transmission case surface restricts the cooling efficiency. Furthermore, after prolonged tractor operation, oil and impurities accumulate on the transmission case surface, preventing it from contacting the cooling airflow. Summary of the Invention

[0004] The purpose of this utility model is to provide a tractor transmission housing that can increase the heat dissipation efficiency of the transmission housing and facilitate the cleaning of the heat dissipation structure on the surface of the transmission housing, so as to avoid affecting the heat dissipation efficiency of the transmission housing.

[0005] To achieve the above objectives, a tractor transmission housing is provided, comprising a transmission housing body. Two sets of heat dissipation fins are welded to the top of the transmission housing body, with each set containing a plurality of fins arranged equidistantly. U-shaped first support frames are provided on both sides of each set of heat dissipation fins, with the lower ends of the first support frames fixedly connected to the transmission housing body. A movable component is provided at the upper end of the transmission housing body, with heat dissipation fins passing through and slidably connected to the movable component. A second support frame is provided between the two sets of heat dissipation fins, with the lower end of the second support frame fixedly connected to the transmission housing body. A screw is rotatably connected to the middle of the upper end of the second support frame, and the screw passes downward through the middle of the movable component and is threadedly connected to the movable component. The lower end of the screw is rotatably connected to the transmission housing body. The movable component consists of two cleaning mechanisms and a connecting plate. The connecting plate is located between the two cleaning mechanisms, with both ends extending to the upper ends of the two cleaning mechanisms. Bolts are installed at the upper end of the connecting plate, and the connecting plate is fixedly connected to the cleaning mechanisms via bolts. The heat dissipation fins pass through and slidably connect to the cleaning mechanisms, and the screw passes through the middle of the connecting plate. It can increase the heat dissipation efficiency of the transmission box and facilitate the cleaning of the heat dissipation structure on the surface of the transmission box, thus avoiding affecting the heat dissipation efficiency of the transmission box.

[0006] According to the aforementioned tractor transmission housing, the cleaning mechanism comprises a mounting plate and a rubber ring. The connecting plate is fixedly connected to the mounting plate by bolts. The surface of the mounting plate has several channels at equal intervals, and the rubber ring is installed in one of these channels. The heat dissipation fins pass through the center of the rubber ring and are slidably connected to it. When the cleaning mechanism rises, the rubber ring scrapes away oil and impurities adhering to the surface of the heat dissipation fins.

[0007] According to the aforementioned tractor transmission housing, the rubber ring has a groove on its outer side, and the groove surrounds the rubber ring, allowing the rubber ring to be fixed to the mounting plate via the groove. The groove is used to fix the rubber ring to the mounting plate.

[0008] According to the aforementioned tractor transmission housing, the top of the rubber ring is provided with a protrusion, and a slope is provided between the outer side of the protrusion and the top. The protrusion prevents the rubber ring from accumulating oil and impurities scraped off the heat dissipation fins on the top, causing the oil and impurities to be smeared onto the surface of the heat dissipation fins after the rubber ring descends and resets.

[0009] According to the aforementioned tractor transmission housing, a gas strut is fixedly connected to the upper end of the cleaning mechanism in the moving assembly, and the gas strut is fixedly connected to the upper end of the mounting plate. The upper end of the gas strut is fixedly connected to the first support frame, and the gas struts are located at the four corners of the mounting plate. The gas strut is used to push the mounting plate tightly against the surface of the transmission housing, preventing vibrations generated during tractor operation from causing the screw to rotate and lifting the cleaning mechanism, thus allowing oil and impurities to enter the upper surface of the transmission housing body below the cleaning mechanism.

[0010] According to the aforementioned tractor transmission housing, the upper surface of the mounting plate is provided with a groove, and a rubber ring is located in the groove. The groove is used to collect oil and impurities scraped off by the rubber ring, facilitating cleaning by workers.

[0011] According to the aforementioned tractor transmission housing, the mounting plate is made of smooth aluminum alloy, and its bottom is fitted against the top of the transmission housing body. This reduces the weight of the cleaning mechanism and improves the corrosion resistance of the mounting plate.

[0012] According to the aforementioned tractor transmission housing, the upper end of the transmission housing body includes a control mechanism. This mechanism transmits the driver's operating commands to a complex internal mechanism and integrates key systems such as hydraulics and clutch.

[0013] The above-mentioned solution has the following beneficial effects: The transmission box is cooled by heat dissipation fins, which improves the heat dissipation efficiency of the transmission box. The height of the moving component is raised by a screw, so that the cleaning mechanism slides on the surface of the heat dissipation fins to clean the oil stains attached to the surface of the heat dissipation fins and ensure the heat dissipation efficiency of the heat dissipation fins.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is an overall structural diagram of a tractor transmission housing according to the present invention; Figure 2 This is an overall structural diagram of a moving component of a tractor transmission housing according to the present invention; Figure 3 This is a cross-sectional schematic diagram of a cleaning mechanism for a tractor transmission housing according to the present invention; Figure 4 This is an overall structural diagram of a rubber ring for a tractor transmission housing according to the present invention; Figure 5 This is an overall structural diagram of the mounting plate for a tractor transmission housing according to the present invention.

[0016] Legend: 1. First support frame; 2. Transmission box body; 3. Gas strut; 4. Moving component; 5. Control mechanism; 6. Second support frame; 7. Screw; 8. Heat dissipation fins; 9. Cleaning mechanism; 10. Connecting plate; 11. Bolt; 12. Mounting plate; 13. Rubber ring; 14. Slot; 15. Protrusion; 16. Channel. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1-5 This utility model discloses a tractor transmission housing, comprising a transmission housing body 2. Two sets of heat dissipation fins 8 are welded to the top of the transmission housing body 2, with each set containing a plurality of fins arranged at equal intervals. U-shaped first support frames 1 are provided on both sides of each set of heat dissipation fins 8, with the lower end of the first support frame 1 fixedly connected to the transmission housing body 2. A movable component 4 is provided at the upper end of the transmission housing body 2, and the heat dissipation fins 8 pass through the movable component 4 and are slidably connected to it. A second support frame 6 is provided between the two sets of heat dissipation fins 8, with the lower end of the second support frame 6 fixedly connected to the transmission housing body 2. A screw 7 is rotatably connected to the upper middle part of the frame 6, and the screw 7 passes through the middle of the moving component 4 and is threadedly connected to the moving component 4. The lower end of the screw 7 is rotatably connected to the transmission box body 2. The moving component 4 consists of two cleaning mechanisms 9 and a connecting plate 10. The connecting plate 10 is located between the two cleaning mechanisms 9, and both ends of the connecting plate 10 extend to the upper ends of the two cleaning mechanisms 9 respectively. A bolt 11 is installed on the upper end of the connecting plate 10, and the connecting plate 10 is fixedly connected to the cleaning mechanism 9 by the bolt 11. The heat dissipation fins 8 pass through the cleaning mechanism 9 and are slidably connected to the cleaning mechanism 9. The screw 7 passes through the middle of the connecting plate 10.

[0019] The cleaning mechanism 9 consists of a mounting plate 12 and a rubber ring 13. A connecting plate 10 is fixedly connected to the mounting plate 12 by bolts 11. The surface of the mounting plate 12 has several equally spaced channels 16. The rubber ring 13 is installed in one of the channels 16, and the heat dissipation fins 8 pass through the center of the rubber ring 13 and are slidably connected to it. When the cleaning mechanism 9 rises, the rubber ring 13 scrapes away oil and impurities adhering to the surface of the heat dissipation fins 8.

[0020] The rubber ring 13 has a groove 14 on its outer side, and the groove 14 surrounds the rubber ring 13, and the rubber ring 13 is fixed to the mounting plate 12 through the groove 14. The groove 14 is used to fix the rubber ring 13 to the mounting plate 12.

[0021] The top of the rubber ring 13 is provided with a protrusion 15, and there is a slope between the outer side of the protrusion 15 and the top. The protrusion 15 prevents the rubber ring 13 from accumulating oil and dirt scraped off the heat sink fins 8 on the top, so that after the rubber ring 13 descends and resets, the oil and dirt will be smeared on the surface of the heat sink fins 8.

[0022] The cleaning mechanism 9 in the mobile assembly 4 is fixedly connected to a gas strut 3 at its upper end, and the gas strut 3 is fixedly connected to the upper end of the mounting plate 12. The upper end of the gas strut 3 is fixedly connected to the first support frame 1, and the gas strut 3 is located at the four corners of the mounting plate 12. The gas strut 3 is used to push the mounting plate 12 to fit tightly against the surface of the transmission box, preventing the vibration generated when the tractor is working from causing the screw 7 to rotate and thus lifting the cleaning mechanism 9, so that oil and impurities can enter the upper surface of the transmission box body 2 below the cleaning mechanism 9.

[0023] The upper surface of the mounting plate 12 has a groove, and the rubber ring 13 is located in the groove. The groove is used to collect oil and impurities scraped off by the rubber ring 13, making it easier for workers to clean.

[0024] Mounting plate 12 is made of smooth aluminum alloy, and its bottom is attached to the top of the transmission box body 2. This reduces the weight of the cleaning mechanism 9 and improves the corrosion resistance of mounting plate 12.

[0025] The upper end of the transmission box body 2 includes a control mechanism 5. This mechanism transmits the driver's operating commands for gear shifting, connecting implements, and lifting implements to a complex internal mechanism, while also integrating key systems such as hydraulics and clutch.

[0026] Working principle: During use, the heat in the transmission box body 2 is transferred to the surface of the heat dissipation fins 8 and dissipated through the heat dissipation fins 8. The screw 7 is rotated with a wrench to make the moving component 4 rise. The connecting plate 10 drives the two cleaning mechanisms 9 to rise, causing the rubber ring 13 to move on the surface of the heat dissipation fins 8. The rubber ring 13 scrapes off the oil and dirt adhering to the surface of the heat dissipation fins 8 and falls onto the mounting plate 12. Then the screw 7 is reversed to make the moving component 4 fall back to its original position, and then the oil and dirt accumulated on the mounting plate 12 are cleaned.

[0027] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A tractor transmission housing, comprising: The transmission box body (2) is characterized in that two sets of heat dissipation fins (8) are welded to the top of the transmission box body (2), and the two sets of heat dissipation fins (8) are provided with a plurality of fins and are arranged at equal intervals. The two sets of heat dissipation fins (8) are provided with U-shaped first support frames (1) on both sides, and the lower end of the first support frame (1) is fixedly connected to the transmission box body (2). The upper end of the transmission box body (2) is provided with a moving component (4), and the heat dissipation fins (8) pass through the moving component (4) and are slidably connected to the moving component (4). A second support frame (6) is provided between the two sets of heat dissipation fins (8), and the lower end of the second support frame (6) is fixedly connected to the transmission box body (2). A screw is rotatably connected to the middle of the upper end of the second support frame (6). (7), and the screw (7) penetrates downward through the middle of the moving assembly (4) and is threadedly connected to the moving assembly (4). The lower end of the screw (7) is rotatably connected to the transmission box body (2). The moving assembly (4) consists of two cleaning mechanisms (9) and a connecting plate (10). The connecting plate (10) is located between the two cleaning mechanisms (9), and the two ends of the connecting plate (10) extend to the upper ends of the two cleaning mechanisms (9). The upper end of the connecting plate (10) is equipped with a bolt (11), and the connecting plate (10) is fixedly connected to the cleaning mechanism (9) by the bolt (11). The heat dissipation fins (8) penetrate through the cleaning mechanism (9) and are slidably connected to the cleaning mechanism (9). The screw (7) penetrates through the middle of the connecting plate (10).

2. A tractor transmission housing according to claim 1, characterized in that, The cleaning mechanism (9) consists of a mounting plate (12) and a rubber ring (13). The connecting plate (10) is fixedly connected to the mounting plate (12) by bolts (11). The surface of the mounting plate (12) is provided with several channels (16) at equal intervals. The rubber ring (13) is installed in the channel (16). The heat dissipation fins (8) pass through the middle of the rubber ring (13) and are slidably connected to the rubber ring (13).

3. A tractor transmission housing according to claim 2, characterized in that, The rubber ring (13) has a groove (14) on its outer side, and the groove (14) surrounds the rubber ring (13). The rubber ring (13) is fixed to the mounting plate (12) through the groove (14).

4. A tractor transmission housing according to claim 3, characterized in that, The top of the rubber ring (13) is provided with a protrusion (15), and there is a slope between the outer side of the protrusion (15) and the top.

5. A tractor transmission housing according to claim 2, characterized in that, The cleaning mechanism (9) in the moving component (4) is fixedly connected to the upper end of a gas strut (3), and the gas strut (3) is fixedly connected to the upper end of the mounting plate (12). The upper end of the gas strut (3) is fixedly connected to the first support frame (1), and the gas strut (3) is located at the four corners of the mounting plate (12).

6. A tractor transmission housing according to claim 5, characterized in that, The upper surface of the mounting plate (12) is provided with a groove, and the rubber ring (13) is located in the groove.

7. A tractor transmission housing according to claim 2, characterized in that, The mounting plate (12) is made of smooth aluminum alloy, and the bottom of the mounting plate (12) is attached to the top of the transmission box body (2).

8. A tractor transmission housing according to claim 1, characterized in that, The upper end of the transmission box body (2) includes a control mechanism (5).

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