Anti-stuck agricultural machinery steering system gear structure

Abstract

This utility model relates to the field of agricultural machinery steering system technology, and discloses a gear structure for an anti-jamming agricultural machinery steering system, including a main sleeve. A steering shaft is rotatably connected inside the main sleeve, and a rotating gear is fixedly connected to the bottom of the steering shaft. A rotating gear plate meshes with the surface of the rotating gear, and an auxiliary sleeve is slidably connected to the surface of the rotating gear plate. This utility model allows the steering shaft and rotating gear to rotate within the main sleeve in conjunction with the rotating gear plate. This rotation drives the meshing transmission gear, connecting rod, and half-blocking plate to rotate inside the lubricating oil cylinder. When the half-blocking plate rotates away from the bottom of the half-blocking plate, the lubricating oil inside the lubricating oil cylinder flows to the surface of the rotating gear plate, effectively preventing the equipment from jamming after prolonged use and improving the overall service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery steering system technology, and in particular to a gear structure for an agricultural machinery steering system that prevents jamming. Background Technology

[0002] Rack and pinion steering systems are a common structural form in agricultural machinery steering systems. Their core components include a pinion, rack, adjusting screw, housing, and guide blocks. The pinion is mounted at the lower end of the steering spindle and meshes with the rack. When the steering wheel is turned, the pinion drives the rack to move axially, transmitting the motion to the steering knuckle arm via a tie rod, thus turning the wheels. After the pinion and rack mesh, the high overlap design of the helical gears converts rotational motion into linear motion. This structure features high transmission efficiency (up to 90% or more) and smooth operation, while automatically eliminating meshing backlash via springs. However, it also has a relatively high reverse efficiency (60%–70%), which may cause steering wheel backlash.

[0003] An existing anti-jamming gear structure for agricultural machinery steering systems is prone to causing gear jamming during actual operation and use by operators, which makes it difficult to guarantee the service life of the steering system. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a gear structure for an agricultural machinery steering system that prevents jamming.

[0005] This utility model is achieved by the following technical solution: a gear structure for an agricultural machinery steering system that prevents jamming, including a main sleeve, a steering shaft rotatably connected inside the main sleeve, and a rotating gear fixedly connected to the bottom of the steering shaft; The rotating gear has a rotating gear plate meshing on its surface, and an auxiliary sleeve is slidably connected to the surface of the rotating gear plate. A mounting base is fixedly connected to the top of the auxiliary sleeve, and a lubricating oil cylinder is threadedly connected to the top of the mounting base. A half-blocking plate is fixedly connected to the inner wall of the lubricating oil cylinder, and a rotating shaft is rotatably connected inside the mounting base. A half-blocking plate is fixedly connected to the top of the rotating shaft, and a connecting rod is fixedly connected to the bottom of the rotating shaft. A transmission gear is fixedly connected to the bottom of the connecting rod.

[0006] The above technical solution, with the rotating gear plate slidably connected inside the main sleeve, allows for a slight axial displacement. When the steering resistance changes abruptly, the gear plate can absorb the impact load through sliding, protecting the gear teeth from sudden stress damage.

[0007] As a further improvement to the above solution, the surface of the transmission gear meshes with a rotating gear plate, the transmission gear is located inside the main sleeve, and the number of the transmission gears is set to two.

[0008] Through the above technical solution, the sliding fit between the auxiliary sleeve and the rotating gear plate allows the transmission gear to float freely in the radial direction, automatically compensating for the clearance changes caused by gear wear. This flexible connection method extends the service life of the gear pair, and performs particularly well in agricultural machinery with large load fluctuations.

[0009] As a further improvement to the above solution, the number of auxiliary sleeves is set to two, and the two auxiliary sleeves are symmetrically distributed on the left and right sides with the main sleeve as the center. The rotating gear is rotatably connected inside the main sleeve.

[0010] Through the above technical solution, the steering shaft and rotating gear inside the main sleeve form the basic transmission unit, and the design of the rotating gear plate meshing with both the rotating gear and the transmission gear forms a dual power path. When the main transmission path is jammed due to foreign objects or wear, the transmission gear set in the auxiliary sleeve can take over the power transmission to ensure that the steering function is not interrupted.

[0011] As a further improvement to the above solution, the rotating shaft is rotatably connected inside the auxiliary sleeve, the connecting rod is located inside the auxiliary sleeve, and the top of the half-blocking plate is in contact with the bottom surface of the half-barrier plate.

[0012] Through the above technical solution, the main sleeve adopts a dustproof and sealed design, combined with the double protection of the lubricating oil cylinder, effectively preventing mud and sand from entering the internal transmission mechanism. The layout of the rotating gear being completely housed inside the main sleeve avoids the risk of clothing getting tangled due to exposed gears.

[0013] As a further improvement to the above solution, the number of the half-blocking plates is set to two, and the two half-blocking plates are symmetrically distributed on the left and right sides with the main sleeve as the center. The half-blocking plates are rotatably connected to the inside of the lubricating oil cylinder.

[0014] As a further improvement to the above solution, the number of the mounting base and the lubricating oil cylinder is set to two, and the two mounting bases and the lubricating oil cylinder are symmetrically distributed on the left and right sides with the main sleeve as the center.

[0015] As a further improvement to the above solution, the rotating gear plate is slidably connected inside the main sleeve, and the number of the half-blocking plate and the half-sealing plate is set to two.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a steering shaft and a rotating gear to rotate within the main sleeve. When the rotating gear plate rotates, it drives the surface-meshing transmission gear, connecting rod, and half-seal plate to rotate inside the lubricating oil cylinder. When the half-seal plate rotates away from the bottom of the half-blocking plate, the lubricating oil inside the lubricating oil cylinder flows to the surface of the rotating gear plate. This effectively prevents the equipment from jamming after prolonged use and improves the overall service life of the equipment.

[0017] This invention features a threaded connection between the mounting base and the lubricating oil cylinder, enabling quick assembly and disassembly without the need for special tools. Power is transmitted to the transmission gear via a connecting rod at the bottom of the rotating shaft. Its segmented structure facilitates segmented inspection and maintenance. The contact surfaces of the half-sealing plate and half-barrier plate are treated with a wear-resistant coating to reduce wear caused by long-term friction. All vulnerable parts are designed with standardized modules, allowing for on-site replacement and significantly reducing downtime. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the frontal anatomical structure of the present invention; Figure 3 This is a schematic diagram of the side anatomical structure of this utility model; Figure 4 This is a schematic diagram of the structure of this utility model viewed from below.

[0019] Explanation of key symbols: 1. Main sleeve; 2. Steering shaft; 3. Rotating gear; 4. Auxiliary sleeve; 5. Rotating gear plate; 6. Mounting base; 7. Lubricating oil cylinder; 8. Half-blocking plate; 9. Rotating shaft; 10. Half-sealing plate; 11. Connecting rod; 12. Transmission gear. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] Example:

[0022] Please combine Figure 1-4 The embodiment of the anti-jamming agricultural machinery steering system gear structure includes a main sleeve 1, a steering shaft 2 rotatably connected inside the main sleeve 1, and a rotating gear 3 fixedly connected to the bottom of the steering shaft 2; A rotating gear plate 3 meshes with the surface of the rotating gear 3. An auxiliary sleeve 4 is slidably connected to the surface of the rotating gear plate 3. A mounting base 6 is fixedly connected to the top of the auxiliary sleeve 4. A lubricating oil cylinder 7 is threadedly connected to the top of the mounting base 6. A half-blocking plate 8 is fixedly connected to the inner wall of the lubricating oil cylinder 7. A rotating shaft 9 is rotatably connected inside the mounting base 6. A half-blocking plate 10 is fixedly connected to the top of the rotating shaft 9. A connecting rod 11 is fixedly connected to the bottom of the rotating shaft 9. A transmission gear 12 is fixedly connected to the bottom of the connecting rod 11.

[0023] The design of the rotating gear plate 3 slidingly connected inside the main sleeve 1 allows it to produce a small displacement in the axial direction. When the steering resistance changes abruptly, the gear plate can absorb the impact load by sliding, protecting the gear teeth from sudden stress damage.

[0024] The transmission gear 12 has a rotating gear plate 3 meshing on its surface. The transmission gear 12 is located inside the main sleeve 1, and there are two transmission gears 12. When the rotating gear plate 3 inside the main sleeve 1 rotates through the steering shaft 2 and the rotating gear 3, the rotating gear plate 3 can drive the transmission gear 12, the connecting rod 11, and the half-blocking plate 10 to rotate inside the lubricating oil cylinder 7. When the half-blocking plate 10 rotates away from the bottom of the half-blocking plate 8, the lubricating oil inside the lubricating oil cylinder 7 can flow to the surface of the rotating gear plate 3, which can effectively prevent the equipment from jamming after a long period of use and improve the overall service life of the equipment.

[0025] The sliding fit between the auxiliary sleeve 4 and the rotating gear plate 3 allows the transmission gear 12 to float freely in the radial direction, automatically compensating for the clearance changes caused by gear wear. This flexible connection method extends the service life of the gear pair, and performs particularly well in agricultural machinery with large load fluctuations.

[0026] The number of auxiliary sleeves 4 is set to two, and the two auxiliary sleeves 4 are symmetrically distributed on the left and right sides with the main sleeve 1 as the center. The rotating gear 3 is rotatably connected inside the main sleeve 1.

[0027] The steering shaft 2 and the rotating gear 3, which are rotatably connected inside the main sleeve 1, constitute the basic transmission unit. The rotating gear plate 3 is designed to mesh with both the rotating gear 3 and the transmission gear 12 to form a dual power path. When the main transmission path is jammed due to foreign objects or wear, the transmission gear 12 set in the auxiliary sleeve 4 can take over the power transmission to ensure that the steering function is not interrupted.

[0028] The rotating shaft 9 is rotatably connected inside the auxiliary sleeve 4, the connecting rod 11 is located inside the auxiliary sleeve 4, and the top of the half-blocking plate 10 is in contact with the bottom surface of the half-barrier plate 8.

[0029] The main sleeve 1 adopts a dustproof and sealed design, which, together with the lubricating oil cylinder 7, provides double protection and effectively prevents mud and sand from entering the internal transmission mechanism. The rotating gear 3 is completely housed inside the main sleeve 1, avoiding the risk of clothing getting tangled due to exposed gears.

[0030] Two half-blocking plates 10 are provided, symmetrically distributed around the main sleeve 1. The half-blocking plates 10 are rotatably connected inside the lubricating oil cylinder 7. The threaded connection between the mounting base 6 and the lubricating oil cylinder 7 allows for quick assembly and disassembly, enabling grease replenishment without special tools. Power is transmitted to the transmission gear 12 via a connecting rod 11 connected to the bottom of the rotating shaft 9. Its segmented structure facilitates segmented inspection and maintenance. The contact surfaces between the half-blocking plates 10 and the half-barrier plates 8 are treated with a wear-resistant coating to reduce wear caused by long-term friction. All vulnerable parts adopt a standardized modular design, allowing for replacement in the field and significantly reducing downtime.

[0031] The number of mounting bases 6 and lubricating oil cylinders 7 is set to two, and the two mounting bases 6 and lubricating oil cylinders 7 are symmetrically distributed on the left and right sides with the main sleeve 1 as the center.

[0032] The rotating gear plate 3 is slidably connected inside the main sleeve 1, and the number of half-blocking plates 8 and half-sealing plates 10 is set to two.

[0033] The implementation principle of the anti-jamming agricultural machinery steering system gear structure in this embodiment is as follows: When the steering shaft 2 and the rotating gear 3 rotate in the main sleeve 1, the rotating gear plate 3 inside rotates, which drives the surface meshing transmission gear 12, connecting rod 11 and half-side sealing plate 10 to rotate inside the lubricating oil cylinder 7. When the half-side sealing plate 10 rotates away from the bottom of the half-side barrier plate 8, the lubricating oil inside the lubricating oil cylinder 7 can flow to the surface of the rotating gear plate 3, which can effectively prevent the equipment from jamming after long-term use and improve the overall service life of the equipment. The threaded connection design between the mounting base 6 and the lubricating oil cylinder 7 supports quick disassembly and assembly, and grease replenishment can be completed without special tools. The connecting rod 11 connected to the bottom of the rotating shaft 9 transmits power to the transmission gear 12. Its segmented structure facilitates segmented inspection and maintenance. The contact surface between the half-side sealing plate 10 and the half-side barrier plate 8 is treated with a wear-resistant coating to reduce wear caused by long-term friction. All vulnerable parts are designed with standardized modules, allowing for replacement in the field and significantly reducing downtime.

[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A gear structure for an anti-jamming agricultural machinery steering system, characterized in that, Includes a main sleeve (1), and a steering shaft (2) is rotatably connected inside the main sleeve (1), and a rotating gear (3) is fixedly connected to the bottom of the steering shaft (2). The rotating gear (3) is meshed with a rotating gear plate (5), and an auxiliary sleeve (4) is slidably connected to the surface of the rotating gear plate (5). The top of the auxiliary sleeve (4) is fixedly connected to a mounting base (6), and the top of the mounting base (6) is threadedly connected to a lubricating oil cylinder (7). The inner wall of the lubricating oil cylinder (7) is fixedly connected to a half-blocking plate (8), and the inside of the mounting base (6) is rotatably connected to a rotating shaft (9). The top of the rotating shaft (9) is fixedly connected to a half-blocking plate (10), and the bottom of the rotating shaft (9) is fixedly connected to a connecting rod (11). The bottom of the connecting rod (11) is fixedly connected to a transmission gear (12).

2. The anti-jamming gear structure for an agricultural machinery steering system as described in claim 1, characterized in that: The surface of the transmission gear (12) is meshed with a rotating gear plate (5). The transmission gear (12) is located inside the main sleeve (1). The number of transmission gears (12) is set to two.

3. The anti-jamming gear structure for an agricultural machinery steering system as described in claim 1, characterized in that: The number of auxiliary sleeves (4) is set to two, and the two auxiliary sleeves (4) are symmetrically distributed on the left and right sides with the main sleeve (1) as the center. The rotating gear (3) is rotatably connected inside the main sleeve (1).

4. The anti-jamming gear structure for an agricultural machinery steering system as described in claim 1, characterized in that: The rotating shaft (9) is rotatably connected inside the auxiliary sleeve (4), the connecting rod (11) is located inside the auxiliary sleeve (4), and the top of the half-blocking plate (10) is in contact with the bottom surface of the half-barrier plate (8).

5. The anti-stuck agricultural machine steering system gear structure of claim 1, wherein: The number of the half-blocking plates (10) is set to two. The two half-blocking plates (10) are symmetrically distributed on the left and right sides with the main sleeve (1) as the center. The half-blocking plates (10) are rotatably connected to the inside of the lubricating oil cylinder (7).

6. The anti-stuck agricultural machine steering system gear structure of claim 1, wherein: The number of the mounting base (6) and the lubricating oil cylinder (7) is set to two, and the two mounting bases (6) and the lubricating oil cylinder (7) are symmetrically distributed on the left and right sides with the main sleeve (1) as the center.

7. The anti-stuck agricultural machine steering system gear structure of claim 1, wherein: The rotating gear plate (5) is slidably connected inside the main sleeve (1), and the number of the half-blocking plate (8) and the half-sealing plate (10) is set to two.

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