Driving shaft for agricultural machinery

By adding air contact area and lubrication protection measures in agricultural machinery drive shafts, the temperature increase caused by insufficient heat dissipation of the drive shaft is solved, and more stable and reliable operation is achieved.

CN222296912UActive Publication Date: 2025-01-03BAOMEILONG (SHANDONG) INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202323535384.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-25
Publication Date
2025-01-03
Estimated Expiration
2033-12-25

AI Technical Summary

Technical Problem

During long-term operation, existing agricultural machinery drive shafts are prone to increase temperature due to insufficient heat dissipation, which leads to an increase in the lubricant temperature, reduces the lubricating effect, and accelerates wear and damage, affecting normal operation.

Method used

A drive shaft including flange, shaft body, spline and mounting column is designed. By setting air cutting ports and inclined arc-shaped air cutting boards inside the splines, the air contact area is increased; lubricating oil is stored in the oil storage cylinder. , and the lubricating oil is thrown out into the installation tank through the oil outlet to provide lubricating protection, and a soft sponge layer barrier layer is used to reduce lubricating oil leakage.

Benefits of technology

It effectively increases the heat dissipation ability of the drive shaft, avoids wear and damage caused by excessive temperature, ensures the normal operation of the drive shaft, and reduces lubricant leakage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222296912U_ABST
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Abstract

The utility model discloses a drive shaft for agricultural machinery, which relates to the technical field of agricultural machinery and comprises a flange, a shaft body, a spline and a mounting column, a plurality of groups of wind cutting ports are symmetrically arranged in the spline in a penetrating manner, four groups of wind cutting plates are symmetrically arranged on the outer side of the mounting column, and a mounting groove is arranged in the spline. The parts such as the air cutting opening and the air cutting plate are arranged, the installation groove is formed in the spline, the contact area between the spline and air can be increased, the installation groove formed in the spline can be supported and reinforced through the air cutting plate, and in the rotating process of the driving shaft, the air cutting opening is formed in the spline. And air can enter the mounting groove formed in the spline through the air cutting opening and the air cutting plate, so that the contact area and the contact speed of the driving shaft and the air are increased, heat dissipation of the driving shaft in operation is facilitated, and the situation that normal work of the driving shaft is affected due to accelerated abrasion and damage of the driving shaft caused by too high temperature of the driving shaft is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a driving shaft used for agricultural machinery. Background Art

[0002] Agricultural machinery refers to various machines used in the process of crop planting and animal husbandry, as well as in the primary processing and treatment of agricultural and livestock products. Agricultural machinery includes agricultural power machinery, farmland construction machinery, soil tillage machinery, planting and fertilization machinery, plant protection machinery, farmland irrigation and drainage machinery, crop harvesting machinery, agricultural product processing machinery, animal husbandry machinery and agricultural transport machinery, etc. The drive shaft is an important mechanical component, mainly used to transmit torque. It is used in the working devices of loaders, automobiles and other equipment. The main function of the drive shaft is to connect the differential and the drive wheel, and transmit torque between the reducer and the drive wheel, so that the drive wheel can drive the vehicle.

[0003] Most existing drive shafts for agricultural machinery are solid, which can easily cause overheating during long-term operation. If the heat dissipation conditions of the drive shaft are not good, the temperature of the drive shaft will continue to rise. Excessive drive shaft temperature may cause the temperature of the lubricating oil to rise, thereby reducing the lubrication effect, causing the drive shaft to wear faster or even damage, and thus affecting the normal operation of the drive shaft. To this end, we provide a drive shaft for agricultural machinery to solve the above problems. Utility Model Content

[0004] 1) Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a drive shaft for agricultural machinery.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a driving shaft for agricultural machinery, comprising a flange, a shaft body, a spline and a mounting column, wherein the interior of the spline is symmetrically provided with a plurality of groups of air cutouts, and the air cutouts are arranged in an arc-shaped groove shape, and the outer side of the mounting column is symmetrically provided with four groups of air cutout plates, and the air cutout plates are inclined arc plates, and the interior of the spline is provided with an installation groove, and the installation groove is located on the outer side of the air cutout plate.

[0008] Furthermore, a plurality of connection holes are symmetrically provided inside the flange, an oil seal neck is fixedly provided on the top of the flange, and the oil seal neck is located on one side of the connection hole.

[0009] Furthermore, a bearing neck is fixedly provided on the top of the oil seal neck, a threaded neck is fixedly provided on the top of the bearing neck, and the top end of the threaded neck is fixedly connected to the bottom end of the shaft body.

[0010] Furthermore, the spline is fixedly arranged at the top of the shaft body, and four groups of threaded holes are symmetrically opened at the top of the spline. A positioning component is arranged at the other end of the wind cutting plate, and the positioning component is detachably connected to the threaded hole.

[0011] Furthermore, two groups of locking grooves are symmetrically formed on the inner wall of the installation groove, and a screw hole is formed on the top of the installation column.

[0012] Furthermore, an oil storage cylinder is movably provided inside the installation groove, and a top cover is detachably provided on the top thread of the oil storage cylinder, and the top end of the top cover is in contact with the bottom end of the installation column.

[0013] Furthermore, two groups of locking blocks are symmetrically arranged on the outer side of the oil storage cylinder, and the locking blocks are movably connected with the locking grooves. Two groups of oil outlets are symmetrically opened through the outer side of the oil storage cylinder. A blocking layer is arranged on the inner wall of the oil storage cylinder, and the blocking layer is located on one side of the oil outlet. The blocking layer can be a soft sponge layer.

[0014] 3) Beneficial effects:

[0015] Compared with the prior art, the drive shaft for agricultural machinery has the following beneficial effects:

[0016] 1. The utility model is provided with components such as an air cutout and an air cutout plate. By opening a mounting groove inside the spline, the contact area between the spline and the air can be increased. The air cutout plate and the mounting column can be detachably arranged inside the mounting groove through a positioning component, which can support and reinforce the mounting groove opened inside the spline, and facilitate the disassembly and maintenance of the air cutout plate and the mounting column at a later time. During the rotation of the drive shaft, air can enter the mounting groove opened inside the spline through the air cutout and the air cutout plate, thereby increasing the contact area and contact speed between the drive shaft and the air, facilitating the heat dissipation of the drive shaft in operation, and avoiding excessive temperature of the drive shaft, which causes accelerated wear and damage to the drive shaft and affects the normal operation of the drive shaft.

[0017] 2. The utility model is provided with components such as an oil storage cylinder. During the operation of the drive shaft, the lubricating oil stored in the oil storage cylinder can be thrown out to the inside of the mounting groove through the oil outlet, and slide to the outside of the spline through the air cutout, so as to lubricate and protect the connection between the spline and the reducer gear and the inner ring of the hub bearing. The barrier layer uses a soft sponge layer to block one side of the oil outlet, which can effectively reduce the leakage of the lubricating oil when the drive shaft is not running. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the spline structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the wind cutting plate structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the oil storage cylinder of the utility model;

[0022] Figure 5 This is a schematic diagram of the barrier layer structure of the utility model.

[0023] In the figure: 1. flange; 2. connecting hole; 3. oil seal neck; 4. bearing neck; 5. threaded neck; 6. shaft body; 7. spline; 8. mounting groove; 9. threaded hole; 10. air cut-out; 11. positioning groove; 12. mounting column; 13. screw hole; 14. air cut-out plate; 15. positioning assembly; 16. oil storage cylinder; 17. positioning block; 18. top cover; 19. oil outlet; 20. barrier layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-5 As shown, the utility model provides a technical solution: a drive shaft for agricultural machinery;

[0026] It includes a flange 1, a shaft body 6, a spline 7 and a mounting column 12. The inside of the spline 7 is symmetrically provided with multiple groups of air cuts 10, and the air cuts 10 are arranged in an arc groove shape. The outside of the mounting column 12 is symmetrically provided with four groups of air cut plates 14, and the air cut plates 14 are inclined arc plates. The inside of the spline 7 is provided with a mounting groove 8, and the mounting groove 8 is located on the outside of the air cut plate 14. The spline 7 is fixedly set at the top of the shaft body 6. Four groups of threaded holes 9 are symmetrically provided on the top of the spline 7. A positioning component 15 is provided at the other end of the air cut plate 14, and the positioning component 15 is threadedly detachably connected to the threaded hole 9. The inner wall of the mounting groove 8 is symmetrically provided with two groups of positioning grooves 11, and the top of the mounting column 12 is provided with a screw hole 13.

[0027] The threaded hole 9 is symmetrically opened at the top of the spline 7, and the positioning component 15 is composed of a threaded rod. The positioning component 15 is threadedly connected to the threaded hole 9, so that the air cutting plate 14 and the mounting column 12 can be detachably arranged inside the mounting groove 8, which can support and reinforce the mounting groove 8 opened inside the spline 7, and it is convenient to disassemble and maintain the air cutting plate 14 and the mounting column 12 in the later stage. The mounting groove 8 is opened inside the spline 7, and the contact area between the spline 7 and the air can be increased. The air cutting port 10 is an arc groove that penetrates the outer side of the spline 7. During the rotation of the drive shaft, the air can enter the mounting groove 8 opened inside the spline 7 through the air cutting port 10. The air cutting plate 14 is an inclined arc plate. During the rotation of the drive shaft, the air cutting plate 14 can accelerate the air to enter the mounting groove 8, thereby increasing the contact area and contact speed between the drive shaft and the air, facilitating the heat dissipation of the driving shaft in operation, avoiding excessive temperature of the driving shaft, causing accelerated wear and damage of the driving shaft, and affecting the normal operation of the driving shaft.

[0028] like Figure 1-5 As shown, the utility model provides a technical solution: a drive shaft for agricultural machinery;

[0029] A plurality of connecting holes 2 are symmetrically provided inside the flange 1, an oil seal neck 3 is fixedly provided on the top of the flange 1, and the oil seal neck 3 is located on one side of the connecting hole 2, a bearing neck 4 is fixedly provided on the top of the oil seal neck 3, a threaded neck 5 is fixedly provided on the top of the bearing neck 4, and the top end of the threaded neck 5 is fixedly connected to the bottom end of the shaft body 6.

[0030] Flange 1 is a mechanical connection component used to connect the automobile engine and transmission system, and transmit the power generated by the engine to the drive wheels through a series of transmission devices, thereby driving the agricultural machinery to travel. The flange 1 can be connected through the connecting hole 2. The main function of the oil seal neck 3 is to seal the drive shaft and the half shaft to prevent the leakage of lubricating oil. It forms an oil seal between the drive shaft and the half shaft to prevent the lubricating oil from leaking from the drive shaft. The main function of the bearing neck 4 is to support the rotating parts and also transmit torque. The main function of the threaded neck 5 is to fix the position of the shaft and provide an axial position for installing parts on the shaft. The shaft body 6 is one of the main combined structures of the drive shaft and provides a suitable length for the spline 7.

[0031] like Figure 1-5 As shown, the utility model provides a technical solution: a drive shaft for agricultural machinery;

[0032] An oil storage cylinder 16 is movably provided inside the mounting groove 8, and a top cover 18 is detachably provided on the top thread of the oil storage cylinder 16, and the top of the top cover 18 contacts the bottom end of the mounting column 12, and two groups of positioning blocks 17 are symmetrically provided on the outside of the oil storage cylinder 16, and the positioning blocks 17 are movably connected with the positioning groove 11, and two groups of oil outlets 19 are symmetrically opened on the outside of the oil storage cylinder 16, and a barrier layer 20 is provided on the inner wall of the oil storage cylinder 16, and the barrier layer 20 is located on one side of the oil outlet 19, and the barrier layer 20 can adopt a soft sponge layer.

[0033] The oil reservoir 16 can store a certain amount of lubricating oil inside. The lubricating oil can be a lubricating liquid with high viscosity. The top cover 18 is detachably connected to the top of the oil reservoir 16 through a thread. The top cover 18 can seal the lubricating oil by combining with the oil reservoir 16. The clamping groove 11 is engaged with the clamping block 17 to guide the clamping block 17 in a straight line up and down. The mounting column 12 is pressed and contacted with the top of the top cover 18 during installation, so that the assembled top cover 18 and the oil reservoir can be connected. The cylinder 16 is positioned and installed inside the mounting groove 8 to prevent the oil storage cylinder 16 from shaking when the drive shaft is running. During the operation of the drive shaft, the lubricating oil stored in the oil storage cylinder 16 can be thrown out to the inside of the mounting groove 8 through the oil outlet 19, and slide to the outside of the spline 7 through the air cut 10 to lubricate and protect the connection between the spline 7 and the reducer gear and the inner ring of the hub bearing. The barrier layer 20 uses a soft sponge layer to block one side of the oil outlet 19, which can effectively reduce the leakage of the lubricating oil when the drive shaft is running.

[0034] Working principle: by opening the mounting groove 8 inside the spline 7, the contact area between the spline 7 and the air can be increased. By using the positioning component 15, the air cutting plate 14 and the mounting column 12 can be detachably arranged inside the mounting groove 8, which can support and reinforce the mounting groove 8 opened inside the spline 7, and facilitate the disassembly and maintenance of the air cutting plate 14 and the mounting column 12 at a later time. The air cutting port 10 is an arc-shaped groove that penetrates the outer side of the spline 7. During the rotation of the drive shaft, the air can enter the mounting groove 8 opened inside the spline 7 through the air cutting port 10 and the air cutting plate 14, thereby increasing the contact area and contact speed between the drive shaft and the air, facilitating the heat dissipation of the drive shaft in operation, avoiding excessive temperature of the drive shaft, and guiding The drive shaft is accelerated to wear and damage, affecting the normal operation of the drive shaft. The mounting column 12 is squeezed and contacted with the top of the top cover 18 during installation, so that the assembled top cover 18 and the oil storage cylinder 16 can be positioned and installed inside the mounting groove 8 to prevent the oil storage cylinder 16 from shaking when the drive shaft is running. During the operation of the drive shaft, the lubricating oil stored in the oil storage cylinder 16 can be thrown out to the inside of the mounting groove 8 through the oil outlet 19, and slide to the outside of the spline 7 through the air cut 10 to lubricate and protect the connection between the spline 7 and the reducer gear and the inner ring of the hub bearing. The barrier layer 20 uses a soft sponge layer to block one side of the oil outlet 19, which can effectively reduce the leakage of lubricating oil when the drive shaft is not running.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drive shaft for agricultural machinery, comprising a flange (1), a shaft body (6), a spline (7) and a mounting column (12), characterized in that: The spline (7) has multiple groups of air cutouts (10) symmetrically arranged inside, and the air cutouts (10) are arranged in an arc-shaped groove shape; the outer side of the mounting column (12) has four groups of air cutout plates (14) symmetrically arranged, and the air cutout plates (14) are inclined arc plates; the spline (7) has a mounting groove (8) arranged inside, and the mounting groove (8) is located on the outer side of the air cutout plate (14).

2. A drive shaft for agricultural machinery according to claim 1, characterized in that: The flange (1) has a plurality of connection holes (2) symmetrically formed therein, and an oil seal neck (3) is fixedly provided on the top of the flange (1), and the oil seal neck (3) is located on one side of the connection hole (2).

3. A drive shaft for agricultural machinery according to claim 2, characterized in that: A bearing neck (4) is fixedly arranged on the top of the oil seal neck (3), a threaded neck (5) is fixedly arranged on the top of the bearing neck (4), and the top end of the threaded neck (5) is fixedly connected to the bottom end of the shaft body (6).

4. A drive shaft for agricultural machinery according to claim 1, characterized in that: The spline (7) is fixedly arranged at the top end of the shaft body (6), and four groups of threaded holes (9) are symmetrically opened at the top of the spline (7). A positioning component (15) is arranged at the other end of the wind cutting plate (14), and the positioning component (15) is detachably connected to the threaded hole (9) by thread.

5. The drive shaft for agricultural machinery according to claim 1, characterized in that: The inner wall of the installation groove (8) is symmetrically provided with two groups of locking grooves (11), and the top end of the installation column (12) is provided with a screw hole (13).

6. A drive shaft for agricultural machinery according to claim 1, characterized in that: An oil storage cylinder (16) is movably arranged inside the installation groove (8), and a top cover (18) is detachably arranged on the top end of the oil storage cylinder (16) through a thread, and the top end of the top cover (18) is in contact with the bottom end of the installation column (12).

7. A drive shaft for agricultural machinery according to claim 6, characterized in that: Two groups of positioning blocks (17) are symmetrically arranged on the outer side of the oil storage cylinder (16), and the positioning blocks (17) are movably connected to the positioning grooves (11). Two groups of oil outlets (19) are symmetrically opened and penetrated on the outer side of the oil storage cylinder (16). A blocking layer (20) is arranged on the inner wall of the oil storage cylinder (16), and the blocking layer (20) is located on one side of the oil outlet (19). The blocking layer (20) can be a soft sponge layer.