Ground wheel transmission device of seeding machine

Abstract

The utility model discloses a land wheel transmission device of a seeding machine, which comprises a walking part consisting of a tire, a rim, a hub, a wheel shaft, a land wheel support and a connecting shaft, and further comprises a transmission part connected with the walking part, the transmission part is installed on an installation plate connected with the walking part and comprises a main transmission chain wheel, a main transmission chain, a chain tensioning mechanism, a lower connecting plate, an upper connecting plate, a jaw clutch chain wheel, a fixed separation claw, a sliding separation claw, a land wheel transmission shaft, a driven chain wheel, a flat key, a driving coupler, a front connecting shaft, a sliding plate and a connecting piece. Based on the principle of chain transmission, the utility model provides an innovative and practical power transmission clutch scheme, solves the problems of complicated structure, easiness in abrasion, high failure rate and the like of the traditional clutch, and improves the practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and specifically relates to a ground wheel transmission device of a seed drill. Background Art

[0002] Seeders are planting machines that sow crop seeds. There are many types of seeders on the market. The small seeders with a wide range of uses basically use traction to drive the ground wheel to rotate, and the ground wheel drives the seeding wheel to rotate through the transmission device to sow and fertilize.

[0003] Currently available mechanical transmission seeders are all driven by tractors, with the walking ground wheels serving as the power source for the seeder operation. The working state of the seeder transmission system is controlled by controlling the engagement state of the friction wheel in contact with the walking ground wheel, the tooth clutch, and whether the ground wheel is off the ground.

[0004] The transmission devices in the prior art include belt transmission and gear transmission. The belt transmission is light and has low noise, but it is easy to slip and has unstable performance. The gear transmission is more expensive and the gears are easily entangled by mud or straw. Utility Model Content

[0005] The utility model provides a ground wheel transmission device for a seed drill, which solves the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a ground wheel transmission device of a seed drill, including a traveling component, the traveling component is composed of a tire, a rim, a wheel hub, a wheel axle, a ground wheel bracket and a connecting shaft, and also includes: a transmission component connected to the traveling component;

[0007] The transmission component is installed on a mounting plate connected to the traveling component, and includes a main transmission sprocket, a main transmission chain, a chain tensioning mechanism, a lower connecting plate, an upper connecting plate, a toothed clutch sprocket, a fixed separation claw, a sliding separation claw, a ground wheel transmission shaft, a driven sprocket, a flat key, a driving coupling, a front connecting shaft, a slide plate and a connecting piece.

[0008] Preferably, the main transmission chain is respectively meshed with the transmission sprocket and the toothed clutch sprocket, and the chain tensioning mechanism is arranged in contact with the main transmission chain.

[0009] Preferably, the fixed separation claws are installed on one side of the upper connecting plate and the lower connecting plate through standard parts.

[0010] Preferably, the sliding separation claw is slidably arranged on the connecting shaft of the walking component, and the sliding separation claw is adapted to the helical tooth surface of the fixed separation claw.

[0011] Preferably, the ground wheel transmission shaft is connected to the driven sprocket through a flat key, and the active coupling is slidably connected to the ground wheel transmission shaft.

[0012] The beneficial effects of adopting the above technical solution are:

[0013] 1. This scheme is based on the principle of chain transmission and proposes an innovative and practical power transmission clutch scheme to solve the problems of traditional clutches, such as complex structure, easy wear, high failure rate, etc., while improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the transmission component in the disconnected state;

[0015] Figure 2 It is a side view of the transmission component in the disconnected state;

[0016] Figure 3 It is a cross-sectional view of the transmission component in a disconnected state;

[0017] Figure 4 It is a top view of the transmission component in the disconnected state;

[0018] Figure 5 It is the front view of the transmission component in working condition;

[0019] Figure 6 It is a side view of the transmission component in working condition;

[0020] Figure 7 It is a cross-sectional view of the transmission component in working condition;

[0021] Figure 8 It is a top view of the transmission component in working condition;

[0022] Fig. 9 It is a structural diagram of the sliding separation claw;

[0023] Fig.10 It is a structural diagram of the tooth-type clutch sprocket;

[0024] Fig.11 It is the structural diagram of the active coupling;

[0025] in:

[0026] 1. Traveling parts; 2. Transmission parts; 3. Main transmission sprocket; 4. Main transmission chain; 5. Chain tensioning mechanism; 6. Lower connecting plate; 7. Upper connecting plate; 8. Tooth-type clutch sprocket; 9. Fixed separation claw; 10. Sliding separation claw; 11. Ground wheel transmission shaft; 12. Driven sprocket; 13. Flat key; 14. Active coupling; 15. Front connecting shaft; 16. Slide plate. DETAILED DESCRIPTION

[0027] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model and facilitating its implementation.

[0028] Specifically, Figures 1 to 11 As shown, a ground wheel transmission device of a seed drill comprises a traveling component 1, wherein the traveling component 1 is composed of a tire, a rim, a wheel hub, a wheel axle, a ground wheel bracket and a connecting shaft, and further comprises: a transmission component 2 connected to the traveling component 1;

[0029] It should be noted that the traveling component 1 is used for the traveling of the whole machine and is the source of the power transmitted;

[0030] The transmission component 2 is installed on a mounting plate connected to the walking component 1, and includes a main transmission sprocket 3, a main transmission chain 4, a chain tensioning mechanism 5, a lower connecting plate 6, an upper connecting plate 7, a toothed clutch sprocket 8, a fixed separation claw 9, a sliding separation claw 10, a ground wheel transmission shaft 11, a driven sprocket 12, a flat key 13, a driving coupling 14, a front connecting shaft 15, a slide plate 16 and a connecting piece.

[0031] The main transmission chain 4 is meshed with the transmission sprocket 3 and the toothed clutch sprocket 8 respectively, and the chain tensioning mechanism 5 is in conflict with the main transmission chain 4 .

[0032] It should be noted that the main transmission sprocket 3, the main transmission chain 4, the chain tensioning mechanism 5 and the driven sprocket 12 are used to transmit the power of the ground wheel to the outside.

[0033] The fixed separation claw 9 is installed on one side of the upper connecting plate 7 and the lower connecting plate 6 through standard parts.

[0034] It should be noted that the upper connecting plate 7 and the lower connecting plate 6 are used to fix the tooth-type clutch sprocket 8 and weld it to the ground wheel bracket of the traveling part, so that it can rotate synchronously with the ground wheel bracket, and the axial position remains unchanged. The tooth-type clutch sprocket 8 transmits power to the outside through the sprocket.

[0035] The fixed separation claw 9 is connected to the upper connecting plate 7 and the lower connecting plate 6 through standard parts to keep the relative position with the ground wheel bracket unchanged, and rotates with the ground wheel bracket when the ground wheel operating state changes.

[0036] The sliding separation claw 10 is slidably arranged on the connecting shaft of the walking component 1 , and the sliding separation claw 10 is adapted to the helical tooth surface of the fixed separation claw 9 .

[0037] It should be noted that the sliding separation claw 10 slides on the front connecting shaft of the walking part 1. When the fixed separation claw 9 is assembled and rotated, the sliding separation claw 10 rotates along the helical tooth surface that cooperates with the fixed separation claw 9, thereby driving the main coupling 14 to slide left and right, and has achieved the combination or separation with the welded tooth surface of the tooth-embedded clutch sprocket 8.

[0038] The ground wheel transmission shaft 11 is connected to the driven sprocket 12 via a flat key 13, and the driving coupling 14 is slidably connected to the ground wheel transmission shaft 11;

[0039] It should be noted that the ground wheel transmission shaft 11 rotates with the driven sprocket 12 and is connected through the flat key 13 to transmit power to the active coupling 14, and the active coupling 14 slides on the ground wheel transmission shaft 10. The flat key 13 is used for power transmission and ensures that the active coupling 14 slides on the ground wheel transmission shaft 10, playing a guiding role. The active coupling 14 slides on the ground wheel transmission shaft 10 and separates the teeth of the tooth-type clutch sprocket 8 to achieve power transmission or disconnection.

[0040] In addition, the front connecting shaft 15 is used to guide the slide plate 16, and the slide plate 16 is used to ensure the position of the limited sliding separation claw 10, drive the active coupling 14, slide together with the active coupling 14 and slide on the front connecting shaft 15, and is assembled with the active coupling 14 and welded with the tooth-type clutch sprocket 8 to achieve power transmission and disconnection through the combination and separation of the tooth surfaces. Standard parts are used for parts quality inspection and connection assembly.

[0041] The specific working method is described below with specific embodiments: Example 1

[0042] When the seeder is in operation, the ground wheel bracket is in a horizontal state, and the active coupling 14 slides toward the ground wheel side along the ground wheel transmission shaft 11 of the traveling part under the drive of the sliding separation claw 10, so that the active coupling 14 is combined with the tooth surface of the toothed clutch sprocket 8, and the power comes from the traveling ground wheel, and is transmitted to the toothed clutch sprocket 8 welding through the main transmission sprocket 3, the main transmission chain 4, the driven sprocket 5, and the tooth surface of the active coupling 14, and the power is transmitted through the toothed clutch sprocket 8 welding. When the machine is raised, the sliding separation claw 10 will rotate along the spiral tooth surface assembled with the fixed separation claw 9, and slide outward along the ground wheel transmission shaft 11 of the traveling part, so that the active coupling 14 assembly is separated from the tooth surface of the toothed clutch sprocket 8 welding, and the power transmission is interrupted.

[0043] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above-mentioned concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A ground wheel transmission device for a seed drill, comprising a traveling component (1), wherein the traveling component (1) is composed of a tire, a rim, a wheel hub, a wheel axle, a ground wheel bracket and a connecting shaft, characterized in that: It also includes: a transmission component (2) connected to the traveling component (1); The transmission component (2) is mounted on a mounting plate connected to the traveling component (1), and comprises a main transmission sprocket (3), a main transmission chain (4), a chain tensioning mechanism (5), a lower connecting plate (6), an upper connecting plate (7), a tooth-type clutch sprocket (8), a fixed separation claw (9), a sliding separation claw (10), a ground wheel transmission shaft (11), a driven sprocket (12), a flat key (13), a driving coupling (14), a front connecting shaft (15), a slide plate (16), and a connecting piece.

2. A seed drill ground wheel transmission device according to claim 1, characterized in that: The main transmission chain (4) is respectively meshed with the transmission sprocket (3) and the tooth-type clutch sprocket (8), and the chain tensioning mechanism (5) is disposed in abutment with the main transmission chain (4).

3. A ground wheel transmission device for a seed drill according to claim 1, characterized in that: The fixed separation claw (9) is installed on one side of the upper connecting plate (7) and the lower connecting plate (6) through standard parts.

4. A ground wheel transmission device for a seed drill according to claim 3, characterized in that: The sliding separation claw (10) is slidably arranged on the connecting shaft of the walking component (1), and the sliding separation claw (10) is adapted to the helical tooth surface of the fixed separation claw (9).

5. A ground wheel transmission device for a seed drill according to claim 1, characterized in that: The ground wheel transmission shaft (11) is connected to the driven sprocket (12) via a flat key (13), and the driving coupling (14) is slidably connected to the ground wheel transmission shaft (11).

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