A one-way clutch

Abstract

The utility model discloses a one-way clutch, including clutch shaft, clutch gear, clutch combination axle sleeve, and the gear sleeve of the one -piece structure of clutch gear is established on the clutch shaft and can rotate along the clutch shaft, the opposite surface of clutch combination axle sleeve and gear sleeve that is established on the clutch shaft is provided with the convex recessed arc tooth that can engage respectively, and the clutch gear of rotation can make clutch combination axle sleeve and gear sleeve combine or separate, and clutch combination axle sleeve can drive the rotation of clutch shaft when clutch combination axle sleeve and gear sleeve combine, and clutch shaft does not rotate when clutch combination axle sleeve and gear sleeve separate. The utility model discloses the linkage and separation of gear sleeve and clutch combination axle sleeve, effectively control the rotation of agricultural machine seeder main drive shaft, control the sowing of seeder, guarantee the sowing precision and operation efficiency, can also reduce the wear and tear of seed metering part, prolong the life of equipment.

Description

Technical Field

[0001] This utility model relates to a clutch device, specifically a one-way clutch. Background Technology

[0002] As a crucial component of modern agricultural machinery, the performance of a seeder directly impacts the quality and efficiency of sowing. The clutch, as a key component of the seeder, plays a vital role. The seeder clutch is primarily responsible for connecting or disconnecting the power transmission between the engine and the sowing device. When the clutch is engaged, the engine's power is smoothly transmitted to the sowing device, driving it to perform the sowing operation; when the clutch is disengaged, the power transmission between the engine and the sowing device is cut off, and the sowing device stops working.

[0003] Common seeder clutches include manual mechanical clutches and electromagnetic clutches. Manual mechanical clutches rely on manual operation, which is labor-intensive, and the timeliness and accuracy of operation require a high level of skill from the operator. Electromagnetic clutches require a stable power supply. In complex field environments, power supply problems may occur, such as insufficient battery power or power line failures, affecting the normal operation of the clutch. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a one-way clutch that can conveniently and effectively control sowing.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a one-way clutch, including a clutch shaft, a clutch gear, and a clutch engagement sleeve. The gear sleeve, which is integrally structured with the clutch gear, is disposed on the clutch shaft and can rotate along the clutch shaft. The clutch engagement sleeve and the gear sleeve are respectively provided with meshing convex and concave arc teeth on their opposite surfaces. The rotating clutch gear can cause the clutch engagement sleeve to engage or disengage from the gear sleeve. When the clutch engagement sleeve engages with the gear sleeve, the clutch engagement sleeve can drive the clutch shaft to rotate. When the clutch engagement sleeve disengages from the gear sleeve, the clutch shaft does not rotate.

[0006] The inner hole of the gear bushing is circular, and the contact area between the clutch shaft and the gear bushing is cylindrical; the inner wall of the clutch engagement bushing is hexagonal, the contact area between the clutch shaft and the clutch engagement bushing near the end of the gear bushing is hexagonal prism, and the contact area between the clutch shaft and the clutch engagement bushing away from the end of the gear bushing is cylindrical.

[0007] The inner cavity of the clutch shaft is hexagonal, and the hexagonal prism-shaped main drive shaft of the seeder passes through the clutch shaft and is seamlessly connected to it.

[0008] A return spring is provided at the end of the clutch shaft located on the side of the clutch engagement sleeve, which can reset the clutch engagement sleeve.

[0009] This utility model employs a one-way clutch designed using the aforementioned technical solution. Through the linkage of the clutch gear, gear bushing, clutch engagement bushing, clutch shaft, and seeder main drive shaft (hexagonal shaft), when the clutch gear rotates in the forward direction, the gear bushing engages with the clutch engagement bushing, causing the clutch shaft to rotate, thereby driving the seeder main drive shaft to rotate and achieving seeding. When the clutch gear rotates in the reverse direction, the convex and concave arc teeth on the gear bushing push against the convex and concave arc teeth on the clutch engagement bushing, causing the clutch engagement bushing to separate from the gear bushing. The clutch engagement bushing moves from the hexagonal prism contact point with the clutch shaft to the cylindrical contact point. The clutch engagement bushing does not rotate, and the clutch shaft does not rotate, thus stopping the rotation of the seeder main drive shaft and stopping the seeder from sowing. This avoids ineffective seeding, missed sowing, or over-sowing, ensuring sowing accuracy and operational efficiency, while also reducing wear on seeding components and extending equipment life. Attached Figure Description

[0010] Figure 1 A schematic diagram showing the exploded structure of this utility model;

[0011] Figure 2 A three-dimensional structural diagram showing the clutch engagement bushing and the gear bushing joined together;

[0012] Figure 3 A schematic diagram showing the planar structure of the clutch engagement bushing and the gear bushing joined together;

[0013] Figure 4 A three-dimensional structural diagram showing the separation of the clutch engagement bushing and the gear bushing;

[0014] Figure 5 A schematic diagram showing the planar structure of the clutch engagement sleeve and the gear sleeve being separated;

[0015] Figure 6 express Figure 5 A schematic diagram of the cross-sectional structure.

[0016] In the diagram: 1-cylindrical structure, 2-hexagonal columnar structure, 3-cylindrical, 4-clutch gear, 5-gear bushing, 6-clutch engagement bushing, 7-reset spring, 8-spring stop plate, 9-clamp, 10-convex and concave arc teeth, 11-convex and concave arc teeth, 12-clutch shaft. Detailed Implementation

[0017] The following description, in conjunction with the accompanying drawings, details a one-way clutch according to this utility model.

[0018] This utility model relates to a one-way clutch; see [link / reference]. Figures 1 to 6It includes a clutch shaft 12, a clutch gear 4, and a clutch engagement sleeve 6. The inner cavity of the clutch shaft 12 is hexagonal. The main drive shaft of the seeder (not shown in the figure) is hexagonal prism-shaped and passes through the clutch shaft 12 and is seamlessly connected to the clutch shaft 12. In this way, the clutch shaft 12 and the main drive shaft of the seeder can rotate synchronously.

[0019] The gear shaft of the clutch gear 4 is a gear sleeve 5. The gear sleeve 5 and the clutch gear 4 are integrally structured. The inner hole of the gear sleeve 5 is circular. The gear sleeve 5 is mounted on the clutch shaft 12. The contact point between the clutch shaft 12 and the gear sleeve 5 is cylindrical, as shown by number 1 in the figure. The gear sleeve 5 can rotate along the clutch shaft 12.

[0020] A clutch engagement sleeve 6 is provided on the clutch shaft 12. The clutch engagement sleeve 6 and the gear sleeve 5 have convex and concave arc teeth 10 on their opposite end faces. The gear sleeve 5 also has convex and concave arc teeth 11 on its end face relative to the clutch engagement sleeve 6. The convex and concave arc teeth 10 and convex and concave arc teeth 11 can mesh, allowing the rotating clutch gear 4 to engage or disengage the clutch engagement sleeve 6 from the gear sleeve 5. The inner wall of the clutch engagement sleeve 6 is hexagonal. The contact area between the clutch shaft 12 and the clutch engagement sleeve 6 near the end of the gear sleeve 5 has a hexagonal prism structure, as shown by reference numeral 2 in the figure. The contact area between the clutch shaft 12 and the clutch engagement sleeve 6 away from the end of the gear sleeve 5 has a cylindrical shape, as shown by reference numeral 3 in the figure.

[0021] A return spring 7 is provided at the end of the clutch shaft 12 located on the side of the clutch engagement sleeve 6 to reset the clutch engagement sleeve 6. One end of the return spring 7 is connected to the side of the clutch engagement sleeve 6, and the other end is connected to a spring retainer 8. The spring retainer 8 passes through the seeder main drive shaft extending from the end of the clutch shaft 12 and is fixed to the seeder main drive shaft by a clamp 9. Under normal conditions, the return spring 7 applies a spring force to the clutch engagement sleeve 6, causing the clutch engagement sleeve 6 to engage with the gear sleeve 5. At this time, the axis of the clutch engagement sleeve 6 is located at the hexagonal prism position of the clutch shaft 12 (labeled 2 in the figure). Figure 2 and Figure 3 As shown.

[0022] When the clutch gear 4 rotates in the forward direction, the convex and concave arc teeth 10 and convex and concave arc teeth 11 mesh, thus engaging the gear bushing 5 with the clutch engagement bushing 6 (as shown in the image). Figure 2 and Figure 3As shown, the clutch shaft 12 rotates, thereby driving the main drive shaft of the seeder to rotate, thus realizing the seeder's sowing. When the clutch gear 4 rotates in the opposite direction, the convex and concave arc teeth 11 on the gear bushing 5 push against the convex and concave arc teeth 10 on the clutch engagement bushing 6, causing the clutch engagement bushing 6 to separate from the gear bushing 5. The clutch engagement bushing 6 moves from the contact point with the clutch shaft 12 that is hexagonal (labeled 2 in the figure) to the contact point that is cylindrical (labeled 3 in the figure). The clutch engagement bushing 6 does not rotate, and the clutch shaft 12 does not rotate either, thus stopping the rotation of the seeder's main drive shaft and stopping the seeder from sowing, avoiding ineffective seeding, missed sowing, or over-sowing.

Claims

1. A one-way clutch, comprising a clutch shaft (12), a clutch gear (4), and a clutch engagement sleeve (6), characterized in that: The gear bushing (5), which is integral with the clutch gear (4), is mounted on the clutch shaft (12) and can rotate along the clutch shaft (12). The clutch engagement bushing (6) mounted on the clutch shaft (12) and the gear bushing (5) are respectively provided with meshing convex and concave arc teeth (10, 11). The rotating clutch gear (4) can make the clutch engagement bushing (6) and the gear bushing (5) engage or disengage. When the clutch engagement bushing (6) and the gear bushing (5) are engaged, the clutch engagement bushing (6) can drive the clutch shaft (12) to rotate. When the clutch engagement bushing (6) and the gear bushing (5) are disengaged, the clutch shaft (12) does not rotate.

2. A one-way clutch according to claim 1, characterized in that: The inner hole of the gear bushing (5) is circular, and the contact point between the clutch shaft (12) and the gear bushing (5) is cylindrical; the inner wall of the clutch engagement bushing (6) is hexagonal, the contact point between the clutch shaft (12) and the clutch engagement bushing (6) near the end of the gear bushing (5) is hexagonal prism, and the contact point between the clutch shaft (12) and the clutch engagement bushing (6) away from the end of the gear bushing (5) is cylindrical.

3. A one-way clutch according to claim 1, characterized in that: The inner cavity of the clutch shaft (12) is hexagonal, and the main drive shaft of the seeder, which is hexagonal columnar, passes through the clutch shaft (12) and is seamlessly connected to the clutch shaft (12).

4. A one-way clutch according to claim 1, characterized in that: A return spring (7) is provided at the end of the clutch shaft (12) located on the side of the clutch engagement sleeve (6) to reset the clutch engagement sleeve (6).

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