Transmission device for grain lifting and reversing
By designing a transmission device for grain lifting and reversing, and utilizing the meshing connection of the driving bevel gear and the driven bevel gear, the power reversing function is realized. This solves the problem that the grain lifting device cannot be folded horizontally and the power reversing can not be achieved in the harvester, simplifying the structure and reducing costs.
Patent Information
- Application Number
- CN202522259672.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-10-27
AI Technical Summary
In the existing technology, the grain lifting device cannot be folded horizontally when not in operation, which cannot meet the harvester's driving and passing requirements. At the same time, it cannot achieve power reversal when in operation, which makes it impossible for the grain to be smoothly transported into the grain bin.
Design a transmission device for grain lifting and reversing, which adopts a meshing connection between a driving bevel gear and a driven bevel gear. By adjusting the included angle between the driving shaft and the driven shaft to less than 60°, the power reversing function is realized, and the power is transmitted to the grain lifting auger through the input pulley and the drive wheel.
The grain lifting device can be horizontally folded when not in operation, meeting the harvester's mobility requirements. At the same time, it can smoothly transport grain into the grain bin when in operation, simplifying the structure, reducing costs and saving space.
Smart Images
Figure CN223626449U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of grain lifting of harvester, and particularly relates to a driving device for grain lifting and reversing. BACKGROUND
[0002] In the field of harvesting machinery, large-scale and high-efficiency grain combines have become the clear development direction, and large feeding capacity is a key indicator for measuring the operation efficiency. In the operation process, the screened grains are transported from the threshing part to the inside of the grain tank through the lifting device. Considering the driving passability of the harvester, the grain tank body has a large capacity and is limited in height, and a folding design is usually adopted to meet the volume requirement. Therefore, the grain lifting device is not suitable for directly adopting the conventional upper auger device to transmit power. In order to adapt to the horizontal folding requirement of the grain lifting device in the non-working state, and to make the upper auger meet the operation requirement in the inclined working condition while ensuring that the grain outlet is located in the middle of the grain tank and at the expected height, the vehicle type needs to be equipped with a driving device for grain lifting and reversing to realize the power reversing function, so as to smoothly transport the grains conveyed by the chain harrow into the inside of the grain tank. SUMMARY
[0003] In view of the deficiencies in the prior art, the utility model aims to design a driving device for grain lifting and reversing to solve the problem of realizing the power reversing function and smoothly transporting the grains conveyed by the chain harrow into the inside of the grain tank.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a driving device for grain lifting and reversing, comprising a transmission box shell, a driving shaft is horizontally arranged at the lower part of the transmission box shell, a bearing A and a bearing B are arranged at the middle part of the driving shaft, the driving shaft is connected with the transmission box shell through the bearing A and the bearing B, a spacer sleeve is arranged between the bearing A and the bearing B, an oil seal is arranged at the position where the driving shaft penetrates the transmission box shell, a driving bevel gear is arranged at one end of the driving shaft in the transmission box shell.
[0005] An output shaft is obliquely arranged at the upper part of the transmission box shell, a bearing C is arranged at the middle part of the output shaft, the output shaft is connected with the transmission box shell through the bearing C, a retainer ring is arranged in the middle of the bearing C, a skeleton oil seal is arranged at the position where the output shaft penetrates the transmission box shell, an output bevel gear is arranged at one end of the output shaft in the transmission box shell, and the driving bevel gear is meshed and connected with the output bevel gear.
[0006] The driving shaft is provided with an input pulley, a belt is arranged on the input pulley, the belt is connected with the main shaft of the engine, and the belt is used to drive the driving shaft to rotate.
[0007] The output shaft is provided with a driving wheel, the driving wheel is connected with the grain lifting upper auger, and the driving wheel is used to transmit power to the grain lifting upper auger.
[0008] The angle between the driving shaft and the driven shaft is less than 60°, so as to change the direction of the grain lifting auger.
[0009] The transmission box shell is provided with a box cover which is fixedly connected with the transmission box shell by bolts.
[0010] The transmission box shell is provided with an oil gauge for filling gear lubricating oil and measuring the volume of the lubricating oil in the transmission box.
[0011] The transmission box shell is provided with a wear plate for protecting the upper surface of the transmission box shell.
[0012] The beneficial effect of the present application is that the grain lifting structure is simplified, the space is reduced, and the angle between the driving device and the grain lifting auger device is inclined by setting the cone angle of the driving bevel gear and the driven bevel gear in the transmission box, so as to change the lifting direction. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the present application.
[0014] Figure 2 It is a schematic diagram of the front view structure of the present application.
[0015] Figure 3 It is Figure 2 It is a schematic diagram of the A-A sectional structure.
[0016] In the figure: 1, transmission box shell, 2, driving shaft, 3, bearing A, 4, bearing B, 5, spacer sleeve, 6, oil seal, 7, driving bevel gear, 8, driven shaft, 9, bearing C, 10, retaining ring, 11, skeleton oil seal, 12, driven bevel gear, 13, input pulley, 14, driving wheel, 15, box cover, 16, oil gauge, 17, wear plate. DETAILED DESCRIPTION
[0017] The technical solutions of the present application will be described clearly and completely in combination with the drawings of the present application. It should be noted that the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0018] Please refer to Figures 1-3A transmission device for grain lifting and reversing includes a transmission housing 1. A drive shaft 2 is horizontally arranged at the lower part of the transmission housing 1. Bearings A3 and B4 are provided in the middle of the drive shaft 2. The drive shaft 2 is connected to the transmission housing 1 through bearings A3 and B4. A spacer 5 is provided between bearings A3 and B4. An oil seal 6 is provided at the point where the drive shaft 2 passes through the transmission housing 1. A drive bevel gear 7 is provided at one end of the drive shaft 2 inside the transmission housing 1. A driven shaft 8 is inclinedly arranged at the upper part of the transmission housing 1. Bearing C9 is provided in the middle of the driven shaft 8 and is connected to the transmission housing 1 through bearing C9. A retaining ring 10 is provided in the middle of bearing C9. A skeleton oil seal 11 is provided at the point where the driven shaft 8 passes through the transmission housing 1. A driven bevel gear 12 is provided at one end of the driven shaft 8 inside the transmission housing 1. The drive bevel gear 7 and the driven bevel gear 12 are meshed together. The drive shaft 2 is equipped with an input pulley 13, on which a belt is mounted. The belt is connected to the engine main shaft to drive the drive shaft 2 to rotate. The driven shaft 8 is equipped with a drive wheel 14, which is connected to the grain conveying auger to transmit power to it. The angle between the drive shaft 2 and the driven shaft 8 is less than 60°, used to change the direction of the grain conveying auger. The transmission housing 1 is equipped with a housing cover 15, which is bolted to the transmission housing 1. The transmission housing 1 is equipped with a dipstick 16 for adding gear lubricating oil and for measuring the volume of the transmission housing lubricating oil.
[0019] The transmission housing 1 is provided with a wear-resistant plate 17 for wear protection of the upper surface of the transmission housing 1.
[0020] In the use of this utility model:
[0021] The input pulley 13 receives power input from the engine and transmits the power to the drive shaft 2. The drive shaft 2 meshes with the driven bevel gear 12 through the drive bevel gear 7 and transmits the power to the driven shaft 8. The driven shaft 8 transmits the power to the drive wheel 14. The drive wheel 14 is connected to the bottom of the grain lifting auger and drives the auger to work.
[0022] This transmission device not only drives the auger but also changes the angle at which the auger transports grains. The entire transmission box achieves reversing and speed change functions through the combination of bevel gears and the difference in the number of teeth. It has a compact structure, reliable performance, simplifies the structure of the grain lifting power system, reduces costs, and saves space.
[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0024] The utility model discloses a part of not detailed is prior art.
Claims
1. A grain elevator reversing gear comprising a transmission housing (1), characterized in that: The transmission case shell (1) lower part is horizontally provided with a driving shaft (2), the middle part of the driving shaft (2) is provided with bearing A (3) and bearing B (4), the driving shaft (2) is connected with the transmission case shell (1) through bearing A (3) and bearing B (4), the bearing A (3) and bearing B (4) are provided with a spacer sleeve (5), the driving shaft (2) is provided with an oil seal (6) at the transmission case shell (1), one end of the driving shaft (2) in the transmission case shell (1) is provided with a driving bevel gear (7); The transmission case shell (1) upper part is obliquely provided with a driven shaft (8), the middle part of the driven shaft (8) is provided with bearing C (9), which is connected with the transmission case shell (1) through bearing C (9), the middle part of the bearing C (9) is provided with a check ring (10), the driven shaft (8) is provided with a skeleton oil seal (11) at the transmission case shell (1), one end of the driven shaft (8) in the transmission case shell (1) is provided with a driven bevel gear (12), the driving bevel gear (7) is meshed with the driven bevel gear (12).
2. A grain elevator reversing transmission as set forth in claim 1, characterized in that: The driving shaft (2) is provided with an input pulley (13), the input pulley (13) is provided with a belt, the belt is connected with the engine main shaft, which is used to drive the driving shaft (2) to rotate.
3. A grain elevator reversing transmission as set forth in claim 1, characterized in that: The driven shaft (8) is provided with a drive wheel (14), the drive wheel (14) is connected with the grain lifting up auger, which is used to transmit power to the grain lifting up auger.
4. The grain elevator reversing transmission of claim 1, wherein: The included angle between the driving shaft (2) and the driven shaft (8) is less than 60°, which is used to change the direction of the grain lifting up auger.
5. The grain elevator reversing transmission of claim 1, wherein: The transmission case shell (1) is provided with a case cover (15), the case cover (15) is connected with the transmission case shell (1) by bolt fixing.
6. A kernel elevator reversing transmission according to claim 1, characterized in that: The transmission case shell (1) is provided with an oil gauge (16), which is used to add gear lubricating oil and measure the volume of the transmission case lubricating oil.
7. A kernel elevator reversing transmission as set forth in claim 1, characterized by: The transmission case shell (1) is provided with a wear plate (17), which is used to protect the upper surface of the transmission case shell (1) from wear.