Quick-release type connecting structure of suspension type seeding device of tractor

Abstract

The invention discloses a quick-release connecting structure of a suspension type seeding device of a tractor, and relates to the technical field of agricultural machinery, the quick-release connecting structure comprises a seeding machine rack, movable wheels are rotatably mounted on two sides of the seeding machine rack, a seeding box is fixedly mounted at the upper end of the seeding machine rack, and a mounting seat is fixedly mounted at the front end of the seeding machine rack; a traction assembly is fixedly installed on the installation base and comprises a traction fork arm fixedly installed on the installation base, a square pipe is fixedly installed on the traction fork arm, a positioning cap is fixedly installed at the tail end of the square pipe, a hanging assembly is connected to the positioning cap, and an adjusting mechanism is connected to the hanging assembly. The traction assembly further comprises a reinforcing rib fixedly installed in the square pipe. According to the quick-release connecting structure of the suspension type seeding device of the tractor, a seeding machine on the tractor can be conveniently detached by a user through matched use of the hanging assembly and the adjusting mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a quick-detachable connection structure of a tractor-mounted seeding device. Background Art

[0002] A seeder is an agricultural machine used for efficient and precise seeding. It uses automated technology to evenly plant seeds at a preset depth and spacing, significantly improving planting efficiency. The seeder is equipped with a drawbar, at the end of which a mounting head is fixed. During assembly, the mounting head on the drawbar is inserted into the C-shaped hitch on the tractor, and then secured with a latch to connect the seeder to the tractor.

[0003] In the prior art, the authorization announcement number is CN215529926U, which discloses a hand-held traction type vegetable precision seeder, including a hand-held gasoline engine and a gripping roller driven by the hand-held gasoline engine, and the hand-held gasoline engine is detachably connected to a sowing device through a connecting mechanism; the sowing device includes a sowing frame, and the sowing frame is provided with a furrowing mechanism, a sowing mechanism and a soil covering and leveling roller in sequence from one end close to the hand-held gasoline engine to the other end, and a seat is installed above the sowing frame through a mounting frame; the furrowing mechanism includes a mounting rod installed at the bottom of the sowing frame, and a plurality of furrow openers are provided on the mounting rod; the sowing mechanism includes a plurality of seed box mounting seats installed on the sowing frame, and the sowing box is detachably mounted on the seed box mounting seat.

[0004] The aforementioned device uses a mounting head in conjunction with a C-shaped hitch to mount the planter on a tractor. However, planters are typically designed for outdoor use, where the ground is often uneven. This can cause the planter to become unstable when hung behind a tractor, tilting sideways, forward, or backward. This unstable position can cause the mounting head in the C-shaped hitch to deviate from the center of the latch hole, exerting additional pressure on the latch. This pressure can cause the latch to become stuck, making it difficult to manually remove and inconvenient to disassemble. Summary of the Invention

[0005] The object of the present invention is to provide a quick-release connection structure for a tractor-mounted seeding device to solve the problems in the prior art.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a quick-detachable connection structure of a tractor-mounted seeding device, comprising a seeding machine frame, movable wheels rotatably installed on both sides of the seeding machine frame, a seeding box fixedly installed on the upper end of the seeding machine frame, a mounting seat fixedly installed on the front end of the seeding machine frame, a traction assembly fixedly installed on the mounting seat, the traction assembly comprising a traction fork arm fixedly installed on the mounting seat, a square tube fixedly installed on the traction fork arm, a positioning cap fixedly installed on the end of the square tube, a hanging assembly connected to the positioning cap, and an adjustment mechanism connected to the hanging assembly.

[0007] Preferably, the traction assembly further comprises a reinforcing rib fixedly mounted in the square tube, a connecting frame fixedly mounted on the reinforcing rib, a threaded hole is provided on the connecting frame, and a connecting bolt is connected in the threaded hole.

[0008] Preferably, the hanging assembly includes a hanging head fixedly mounted on the positioning cap, a C-shaped towing part is connected to the hanging head, a latch hole and a connecting hole are provided on the C-shaped towing part, a connecting rod is rotatably mounted in the connecting hole, an anti-drop cap is fixedly mounted on one end of the connecting rod, a connecting ring seat is fixedly mounted on the other end of the connecting rod, and a latch assembly is installed in the latch hole.

[0009] Preferably, the adjustment mechanism includes a mounting base arranged in front of the hanging head, a movable slide groove is opened on the mounting base, a sliding plate is slidably installed in the mounting base, a positioning plate is fixedly installed on the sliding plate, an adjusting shaft is fixedly installed on the positioning plate, the connecting ring seat is rotatably installed on the adjusting shaft, a nut seat is fixedly installed on the mounting base, a threaded rod is threadedly installed on the nut seat, a handwheel is fixedly installed on the upper end of the threaded rod, and the lower end of the threaded rod is rotatably installed on the sliding plate.

[0010] Preferably, the latch assembly includes a latch body inserted in the latch hole, a movable groove is provided at the lower end edge of the latch body, a limit rod is movably installed in the movable groove, a spring is sleeved on the limit rod, a ball is rotatably installed at one end of the limit rod, a conical top block is slidably installed between the balls, a guide groove is provided on the conical top block, an adjusting screw is threadedly installed in the middle position of the latch body, a knob is fixedly installed on the upper end of the adjusting screw, and the lower end of the adjusting screw is rotatably installed on the conical top block.

[0011] Preferably, a through hole is provided on the positioning cap, one end of the connecting bolt passes through the positioning cap through the through hole, the connecting bolt is connected to the connecting frame through a threaded hole, and the positioning cap is fixedly mounted on the square tube through the connecting bolt.

[0012] Preferably, the mounting head is fixedly installed at the end of the square tube through a positioning cap, the mounting head is connected to the C-shaped trailer through a pin body, one end of the connecting rod is rotatably installed on the C-shaped trailer through a connecting hole, and the other end of the connecting rod is rotatably installed on the adjusting shaft through a connecting ring seat.

[0013] Preferably, the threaded rod is installed on the mounting base through a nut seat, the sliding plate is slidably installed on the mounting base through a movable slide groove, a rotating interface is provided on the sliding plate, and the lower end of the threaded rod is rotatably installed on the sliding plate through a spiral interface.

[0014] Preferably, a screw hole is provided in the middle of the latch body, and the adjusting screw is connected to the latch body through the screw hole.

[0015] Preferably, the limit rod is slidably installed in the pin body through a movable groove, one end of the spring is connected to the end of the movable groove, and the other end of the spring is connected to the edge of one end of the limit rod, and the ball is slidably installed on the conical top block through a guide groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In this application, by rotating the handwheel, the sliding plate moves vertically, thereby driving the adjustment shaft to move up and down. The movement of the adjustment shaft enables the connecting ring seat to rotate around the adjustment shaft. This mechanism allows the vertical inclination angle of the C-shaped trailer to be adjusted when the planter is tilted forward or backward, ensuring that the mounting head is located in the center position of the C-shaped trailer. At the same time, the mounting head can rotate around the connecting rod to adjust the horizontal inclination angle of the C-shaped trailer when the planter is in a sideways position, also ensuring that the mounting head is in the center position. When the mounting head is in the center position of the C-shaped trailer, the pin body will not be subjected to lateral pressure, making it easy for the user to quickly manually pull out the pin body, realizing a convenient disassembly process.

[0017] 2. In this application, clockwise rotation of the adjustment screw causes the conical top block to move downward. This movement causes the stopper rod to extend, thereby restraining the latch body on the C-shaped trailer, ensuring that the latch body will not fall out of the latch hole. Conversely, counterclockwise rotation of the adjustment screw causes the spring to push the stopper rod back into the movable slot, facilitating removal of the latch body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 is a schematic diagram of a traction assembly of the present invention; Figure 4 It is a schematic diagram of the assembly of the local structure of the present invention; Figure 5 It is a schematic diagram of the hanging assembly of the present invention; Figure 6 It is a schematic diagram of the adjustment mechanism of the present invention; Figure 7 is a schematic diagram of a latch assembly of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle.

[0019] Markings in the figure: 1, seed drill frame; 2, mounting base; 3, seeding box; 4, movable wheel; 5, traction assembly; 501, traction fork arm; 502, square tube; 503, reinforcement rib; 504, connecting frame; 505, threaded hole; 506, connecting bolt; 507, positioning cap; 6, hanging assembly; 601, hanging head; 602, pin hole; 603, C-shaped towing part; 604, connecting ring seat; 605, connecting rod; 606, connecting hole; 60 7. Anti-drop cap; 7. Adjustment mechanism; 701. Handwheel; 702. Threaded rod; 703. Nut seat; 704. Mounting base; 705. Sliding plate; 706. Movable slide; 707. Positioning plate; 708. Adjustment shaft; 8. Latch assembly; 801. Latch body; 802. Knob; 803. Adjustment screw; 804. Conical top block; 805. Limit rod; 806. Spring; 807. Guide slide; 808. Ball; 809. Movable slot. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1 and Figure 2 As shown, the present invention provides a technical solution of a quick-detachable connection structure of a tractor-mounted seeding device, including a seeding machine frame 1, movable wheels 4 are rotatably installed on both sides of the seeding machine frame 1, a seeding box 3 is fixedly installed on the upper end of the seeding machine frame 1, a mounting seat 2 is fixedly installed on the front end of the seeding machine frame 1, a traction component 5 is fixedly installed on the mounting seat 2, a hanging component 6 is connected to the positioning cap 507, and an adjustment mechanism 7 is connected to the hanging component 6. Through the coordinated use of the hanging component 6 and the adjustment mechanism 7, the user can conveniently disassemble the seeding machine on the tractor.

[0022] like Figure 2 and Figure 3As shown, the traction assembly 5 includes a traction fork arm 501 fixedly mounted on the mounting seat 2, a square tube 502 fixedly mounted on the traction fork arm 501, a positioning cap 507 fixedly mounted at the end of the square tube 502, the traction assembly 5 also includes a reinforcing rib 503 fixedly mounted in the square tube 502, a connecting frame 504 fixedly mounted on the reinforcing rib 503, a threaded hole 505 is provided on the connecting frame 504, a connecting bolt 506 is connected in the threaded hole 505, a through hole is provided on the positioning cap 507, one end of the connecting bolt 506 passes through the positioning cap 507 through the through hole, the connecting bolt 506 is connected to the connecting frame 504 through the threaded hole 505, and the positioning cap 507 is fixedly mounted on the square tube 502 through the connecting bolt 506.

[0023] Specifically, by using the connecting bolts 506 in conjunction with the connecting frame 504, the positioning cap 507 can be securely fixed to the end of the square tube 502. Once the positioning cap 507 is successfully fixed to the end of the square tube 502, the mounting head 601 can be moved to the center of the C-shaped trailer 603, making it easier to assemble the planter on the tractor.

[0024] like Figure 4 and Figure 5 As shown, the hanging assembly 6 includes a hanging head 601 fixedly mounted on the positioning cap 507, a C-shaped towing part 603 is connected to the hanging head 601, a latch hole 602 and a connecting hole 606 are provided on the C-shaped towing part 603, a connecting rod 605 is rotatably mounted in the connecting hole 606, an anti-drop cap 607 is fixedly mounted on one end of the connecting rod 605, a connecting ring seat 604 is fixedly mounted on the other end of the connecting rod 605, a latch assembly 8 is installed in the latch hole 602, one end of the connecting rod 605 is rotatably mounted on the C-shaped towing part 603 through the connecting hole 606, and the other end of the connecting rod 605 is rotatably mounted on the adjusting shaft 708 through the connecting ring seat 604.

[0025] Specifically, when the mounting head 601 is moved to the center of the C-shaped hitch 603, the latch body 801 can be inserted into the latch hole 602, thus completing the connection between the mounting head 601 and the C-shaped hitch 603. The mounting head 601 is capable of rotating about the connecting rod 605, allowing the horizontal inclination angle of the C-shaped hitch 603 to be adjusted when the planter is in a tilted position. This ensures that the mounting head 601 always remains in the center of the C-shaped hitch 603. When the mounting head 601 is in the center of the C-shaped hitch 603, the latch body 801 is not subjected to any lateral pressure, making it easy and convenient to quickly and manually remove the latch body 801.

[0026] like Figure 4 and Figure 6As shown, the adjustment mechanism 7 includes a mounting base 704 arranged in front of the hanging head 601, and a movable slide groove 706 is opened on the mounting base 704. A sliding plate 705 is slidably installed in the mounting base 704, a positioning plate 707 is fixedly installed on the sliding plate 705, an adjustment shaft 708 is fixedly installed on the positioning plate 707, the connecting ring seat 604 is rotatably installed on the adjustment shaft 708, a nut seat 703 is fixedly installed on the mounting base 704, a threaded rod 702 is threadedly installed on the nut seat 703, a handwheel 701 is fixedly installed on the upper end of the threaded rod 702, and the lower end of the threaded rod 702 is rotatably installed on the sliding plate 705.

[0027] Specifically, when the operator turns the handwheel 701 on the seed drill, this action directly causes the sliding plate 705 to move up and down in the vertical direction. As the sliding plate 705 moves up and down, it further causes the adjustment shaft 708 to move up and down. During the up and down movement of the adjustment shaft 708, the connecting ring seat 604 can rotate around the adjustment shaft 708, thereby adjusting the vertical inclination angle of the C-shaped trailer 603 when the seed drill is in a forward or backward state. Through such adjustment, it can be ensured that the mounting head 601 is always located at the center position of the C-shaped trailer 603. Once the mounting head 601 is located at the center position of the C-shaped trailer 603, the latch body 801 will not be subjected to any pressure from the side. In this way, the operator can easily and quickly manually pull out the latch body 801, thereby completing the mounting or unmounting of the seed drill.

[0028] like Figure 7 and Figure 8 As shown, the latch assembly 8 includes a latch body 801 inserted into the latch hole 602, a movable groove 809 is provided at the lower end edge of the latch body 801, a limit rod 805 is movably installed in the movable groove 809, a spring 806 is sleeved on the limit rod 805, a ball 808 is rotatably installed at one end of the limit rod 805, a conical top block 804 is slidably installed between the balls 808, a guide groove 807 is provided on the conical top block 804, an adjusting screw 803 is threadedly installed in the middle position of the latch body 801, a knob 802 is fixedly installed on the upper end of the adjusting screw 803, and the lower end of the adjusting screw 803 is rotatably installed on the conical top block 804.

[0029] Specifically, when the adjusting screw 803 rotates downward, it will drive the conical top block 804 connected to it to move downward together. As the conical top block 804 descends, it will exert pressure on the limit rod 805, causing the limit rod 805 to extend forward along its motion trajectory. The latch body 801 is locked on the C-shaped trailer 603 to ensure that the latch body 801 will not accidentally disengage from the latch hole 602. On the other hand, when the latch body 801 needs to be removed, the operator only needs to turn the adjusting screw 803 upward. At this time, the elastic force of the spring 806 will come into play, and it will push the limit rod 805 to retract backward until it is completely retracted into the movable groove 809. This design makes it simple and quick to remove the latch body 801, greatly improving the convenience of operation.

[0030] Working principle: When in use, the adjustment mechanism 7 is fixedly installed on the tractor. When disassembling, the entire device is parked on the ground. After the entire device is parked on the ground, the hand wheel 701 can be turned. After turning the hand wheel 701, it will drive the sliding plate 705 to move up and down. After the sliding plate 705 moves up and down, it will drive the adjustment shaft 708 to move up and down. When the adjustment shaft 708 moves up and down, the connecting ring seat 604 can rotate around the adjustment shaft 708, thereby adjusting the C-shaped trailer 60 when the planter is in a forward or backward state. 3 in the vertical direction, so that the hanging head 601 is located at the center of the C-shaped trailer 603. At the same time, the hanging head 601 can rotate around the connecting rod 605, so that the hanging head 601 is located at the center of the C-shaped trailer 603 when the planter is in a tilted state. When the hanging head 601 is in the center of the C-shaped trailer 603, the latch body 801 is not subjected to lateral pressure, and the latch body 801 can be manually and quickly pulled out, which is convenient for users to disassemble. When the mounting head 601 is at the center position of the C-shaped trailer 603, the latch body 801 can be inserted into the latch hole 602 to achieve the connection between the mounting head 601 and the C-shaped trailer 603. Then, the adjusting screw 803 can be rotated downward. After rotating the adjusting screw 803 downward, it will drive the conical top block 804 to move downward. When the conical top block 804 moves downward, it will push the limit rod 805 to extend, thereby restricting the latch body 801 on the C-shaped trailer 603, preventing the latch body 801 from escaping from the latch hole 602. At the same time, after rotating the adjusting screw 803 upward, the thrust provided by the spring 806 will push the limit rod 805 to retract into the movable groove 809, making it easy to remove the latch body 801.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A quick-detachable connection structure of a tractor-mounted seeding device, comprising a seeding machine frame (1), movable wheels (4) rotatably mounted on both sides of the seeding machine frame (1), a seeding box (3) fixedly mounted on the upper end of the seeding machine frame (1), and a mounting seat (2) fixedly mounted on the front end of the seeding machine frame (1), characterized in that: A traction assembly (5) is fixedly mounted on the mounting seat (2), and the traction assembly (5) comprises a traction fork arm (501) fixedly mounted on the mounting seat (2), a square tube (502) is fixedly mounted on the traction fork arm (501), a positioning cap (507) is fixedly mounted on the end of the square tube (502), a hanging assembly (6) is connected to the positioning cap (507), and an adjustment mechanism (7) is connected to the hanging assembly (6).

2. The quick-release connection structure of the tractor-mounted seeding device according to claim 1, characterized in that: The traction assembly (5) further comprises a reinforcing rib (503) fixedly mounted in the square tube (502), a connecting frame (504) fixedly mounted on the reinforcing rib (503), a threaded hole (505) formed in the connecting frame (504), and a connecting bolt (506) connected in the threaded hole (505).

3. The quick-release connection structure of the tractor-mounted seeding device according to claim 2, characterized in that: The hanging assembly (6) comprises a hanging head (601) fixedly mounted on a positioning cap (507); a C-shaped towing member (603) is connected to the hanging head (601); a latch hole (602) and a connecting hole (606) are provided on the C-shaped towing member (603); a connecting rod (605) is rotatably mounted in the connecting hole (606); an anti-drop cap (607) is fixedly mounted on one end of the connecting rod (605); a connecting ring seat (604) is fixedly mounted on the other end of the connecting rod (605); and a latch assembly (8) is mounted in the latch hole (602).

4. The quick-release connection structure of the tractor-mounted seeding device according to claim 3, characterized in that: The adjustment mechanism (7) includes a mounting base (704) arranged in front of the hanging head (601), a movable sliding groove (706) is provided on the mounting base (704), a sliding plate (705) is slidably installed in the mounting base (704), a positioning plate (707) is fixedly installed on the sliding plate (705), an adjustment shaft (708) is fixedly installed on the positioning plate (707), the connecting ring seat (604) is rotatably mounted on the adjustment shaft (708), a nut seat (703) is fixedly installed on the mounting base (704), a threaded rod (702) is threadedly installed on the nut seat (703), a hand wheel (701) is fixedly installed on the upper end of the threaded rod (702), and the lower end of the threaded rod (702) is rotatably mounted on the sliding plate (705).

5. The quick-release connection structure of the tractor-mounted seeding device according to claim 4, characterized in that: The latch assembly (8) comprises a latch body (801) inserted into the latch hole (602), a movable groove (809) is provided at the lower edge of the latch body (801), a limit rod (805) is movably installed in the movable groove (809), a spring (806) is sleeved on the limit rod (805), a ball (808) is rotatably installed at one end of the limit rod (805), a conical top block (804) is slidably installed between the balls (808), a guide groove (807) is provided on the conical top block (804), an adjusting screw (803) is threadedly installed in the middle position of the latch body (801), a knob (802) is fixedly installed on the upper end of the adjusting screw (803), and the lower end of the adjusting screw (803) is rotatably installed on the conical top block (804).

6. The quick-release connection structure of the tractor-mounted seeding device according to claim 5, characterized in that: A through hole is provided on the positioning cap (507), one end of the connecting bolt (506) passes through the positioning cap (507) through the through hole, the connecting bolt (506) is connected to the connecting frame (504) through the threaded hole (505), and the positioning cap (507) is fixedly mounted on the square tube (502) through the connecting bolt (506).

7. The quick-release connection structure of the tractor-mounted seeding device according to claim 5, characterized in that: The hanging head (601) is fixedly mounted on the end of the square tube (502) via a positioning cap (507). The hanging head (601) is connected to the C-shaped trailer (603) via a latch body (801). One end of the connecting rod (605) is rotatably mounted on the C-shaped trailer (603) via a connecting hole (606). The other end of the connecting rod (605) is rotatably mounted on the adjustment shaft (708) via a connecting ring seat (604).

8. The quick-release connection structure of the tractor-mounted seeding device according to claim 5, characterized in that: The threaded rod (702) is mounted on the mounting base (704) via a nut seat (703), and the sliding plate (705) is slidably mounted on the mounting base (704) via a movable slide groove (706). A rotation interface is provided on the sliding plate (705), and the lower end of the threaded rod (702) is rotationally mounted on the sliding plate (705) via the spiral interface.

9. The quick-release connection structure of the tractor-mounted seeding device according to claim 5, characterized in that: A screw hole is provided in the middle of the latch body (801), and the adjusting screw (803) is connected to the latch body (801) through the screw hole.

10. The quick-release connection structure of the tractor-mounted seeding device according to claim 5, characterized in that: The limiting rod (805) is slidably mounted in the latch body (801) through the movable groove (809), one end of the spring (806) is connected to the end of the movable groove (809), and the other end of the spring (806) is connected to the edge of one end of the limiting rod (805), and the ball (808) is slidably mounted on the conical top block (804) through the guide groove (807).

Images