Adjusting hand wheel

Abstract

The utility model relates to the technical field of seeding machines, in particular to an adjusting hand wheel which comprises a threaded fixing seat, the threaded fixing seat is fixedly connected to a seeding machine, and when the position of a baffle at a discharge port of the seeding machine needs to be adjusted, a rotating wheel is rotated, and the rotating wheel rotates to drive a connecting plate and a threaded pipe to rotate. The right part of the shaft core is clamped between the connecting plate and the rotating wheel through the limiting bolt, so that the connecting plate and the rotating wheel move leftwards to drive the shaft core to move leftwards, and the left part of the shaft core is inserted into the square limiting hole of the seeding machine, so that the shaft core is driven to move leftwards; the right part of the shaft core is connected in the rotating wheel and the connecting plate through the two bearings, so that the friction force between the shaft core and the rotating wheel and the friction force between the shaft core and the connecting plate are reduced, the rotating of the connecting plate is facilitated, the shaft core rotates leftwards to drive the baffle to move, and the size of the discharge hole of the seeder is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of seed drills, in particular to an adjusting hand wheel. Background Art

[0002] A seeder is a machine for automated sowing. The seeds are discharged from the discharge port while the seeder is moving and then buried through automatic soil filling, thus achieving automated sowing. Compared with traditional manual sowing, it is more efficient and has better sowing effects, so it is widely promoted.

[0003] Most seed discharge ports of seeders are equipped with a movable and adjustable baffle. The baffle is used to seal the seed discharge port when not sowing. During the sowing process, the size of the discharge port is adjusted to achieve the number and angle of seed discharge.

[0004] The baffles of the existing seeder discharge ports are mostly designed in the form of simple sliding connections or plug-in fixations. During the sowing process, on the one hand, the bumps of the seeder will cause unexpected displacement of the baffles, thereby affecting the size of the discharge port. On the other hand, the discharge port is mostly set at the bottom of the seeder. Each time the baffle position is adjusted, it is necessary to bend over and drill under the seeder, which is not only very dangerous but also very troublesome. For this reason, we propose to adjust the hand wheel. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an adjusting hand wheel.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: an adjustment hand wheel includes a threaded fixing seat, the threaded fixing seat is fixedly connected to the seed drill, and also includes:

[0007] A threaded pipe, wherein the threaded pipe is threadedly connected to a threaded fixing seat, a connecting plate is fixedly connected to the right end surface of the threaded pipe, and a rotating wheel is detachably connected to the right end surface of the connecting plate by means of screws;

[0008] The shaft core is located in the threaded tube, the left end face of the shaft core is fixedly connected to the feed port baffle, the right part of the shaft core is plugged with a limit pin, and the limit pin is clamped between the connecting plate and the rotating wheel;

[0009] Two bearings, the inner walls of the bearings are fixedly connected to the outer surfaces of the shaft core, and the outer surfaces of the bearings are fixedly connected to the inner walls of the rotating wheel and the connecting plate.

[0010] Preferably, the left portion of the shaft core is set as a rectangular parallelepiped, the right portion of the shaft core is set as a cylinder, and the left portion of the shaft core is laterally slidably inserted into the square limiting hole of the seeder.

[0011] Preferably, a receiving groove is bored on the right end face of the rotating wheel, a rotating rod is rotatably hinged on the left inner wall of the accommodating groove, the right end face of the rotating rod is fixedly connected to a limiting plate, a spring is sleeved on the circumferential surface of the rotating rod, an annular plate is slidably connected to the circumferential surface of the rotating rod, the spring is fixedly connected between the annular plate and the limiting plate, the outer side of the rotating rod is slidably connected to a handle shell, the handle shell is clamped on the right end face of the rotating wheel, the left end face of the annular plate is pressed against the left inner wall of the handle shell, and the annular plate, spring and limiting plate are all located inside the handle shell.

[0012] Preferably, a stop ring is sleeved on the circumferential surface of the threaded tube, a locking nut is threadedly connected to the circumferential surface of the threaded tube, and the stop ring is located between the locking nut and the threaded fixing seat.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] When the position of the baffle plate of the seeder discharge port needs to be adjusted in this scheme, the wheel is rotated, and the rotation of the wheel drives the connecting plate and the threaded tube to rotate. Since the threaded fixing seat is fixed on the seeder, the threaded tube and the threaded fixing seat thread cooperate to drive the threaded tube to move left. Since the right part of the shaft core is stuck between the connecting plate and the wheel through the limit pin, the connecting plate and the wheel move left, driving the shaft core to move left. Since the left part of the shaft core is inserted into the square limit hole of the seeder, the shaft core will not rotate while sliding to the left. Since the right part of the shaft core is connected to the wheel and the connecting plate through two bearings, the friction between the shaft core and the wheel and the connecting plate is reduced, which facilitates the rotation of the connecting plate. The shaft core rotates left to drive the baffle plate to move, thereby adjusting the size of the seeder discharge port, which facilitates the adjustment of the position of the baffle plate of the discharge port and also avoids the accidental displacement of the baffle plate caused by the shaking of the seeder.

[0015] In the present solution, when it is necessary to rotate the rotating wheel, the handle shell is rotated and pulled so that the left end surface of the handle shell is attached to the right end surface of the rotating wheel. The elastic squeezing of the spring makes it possible for the handle shell to be perpendicular to the rotating wheel. The rotating wheel can be driven to rotate by shaking the handle shell, which is very convenient. When it is not necessary to rotate the rotating wheel, the handle shell can be pulled and rotated to put the handle shell into the receiving groove, thereby saving more space and preventing the user's clothes from accidentally scratching the handle shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model;

[0017] Figure 2 for Figure 1 A magnified image of point A;

[0018] Figure 3 for Figure 1 Enlarged view of point B.

[0019] In the figure: 1. rotating wheel; 2. threaded fixing seat; 3. connecting plate; 4. shaft core; 5. threaded tube; 6. receiving groove; 7. limit pin; 8. bearing; 9. rotating rod; 10. handle housing; 11. annular plate; 12. spring. DETAILED DESCRIPTION

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0021] like Figure 1-Figure 3 The adjustment hand wheel shown includes a threaded fixing seat 2, which is fixedly connected to the seed drill, and also includes:

[0022] The threaded tube 5 is threadedly connected in the threaded fixing seat 2, the right end surface of the threaded tube 5 is fixedly connected with the connecting plate 3, and the right end surface of the connecting plate 3 is detachably connected with the rotating wheel 1 through screws;

[0023] The shaft core 4 is located in the threaded tube 5. The left end face of the shaft core 4 is fixedly connected to the feed port baffle. The right part of the shaft core 4 is plugged with a limit pin 7, which is clamped between the connecting plate 3 and the rotating wheel 1.

[0024] Two bearings 8, the inner walls of the bearings 8 are fixedly connected to the outer surface of the shaft core 4, and the outer surfaces of the bearings 8 are fixedly connected to the inner walls of the runner 1 and the connecting plate 3;

[0025] The left part of the shaft core 4 is set as a rectangular parallelepiped, and the right part of the shaft core 4 is set as a cylinder. The left part of the shaft core 4 is laterally slidably inserted into the square limiting hole of the seed drill.

[0026] When working, when it is necessary to adjust the position of the baffle plate of the seeder discharge port, the wheel 1 is rotated. The rotation of the wheel 1 drives the connecting plate 3 and the threaded tube 5 to rotate. Since the threaded fixing seat 2 is fixed on the seeder, the threaded cooperation of the threaded tube 5 and the threaded fixing seat 2 drives the threaded tube 5 to move left. Since the right part of the shaft core 4 is stuck between the connecting plate 3 and the wheel 1 through the limiting latch 7, the connecting plate 3 and the wheel 1 move left, driving the shaft core 4 to move left. Since the left part of the shaft core 4 is inserted in the square limiting hole of the seeder, the shaft core 4 will not rotate while sliding to the left. Since the right part of the shaft core 4 is connected to the wheel 1 and the connecting plate 3 through two bearings 8, the friction between the shaft core 4 and the wheel 1 and the connecting plate 3 is reduced, thereby facilitating the rotation of the connecting plate 3. The shaft core 4 rotates leftward to drive the baffle plate to move, thereby adjusting the size of the seeder discharge port, thereby facilitating the adjustment of the position of the baffle plate of the discharge port and also avoiding the accidental displacement of the baffle plate caused by the shaking of the seeder.

[0027] Specifically, a receiving groove 6 is excavated on the right end face of the rotating wheel 1, and a rotating rod 9 is rotatably hinged on the left inner wall of the accommodating groove 6. The right end face of the rotating rod 9 is fixedly connected to a limiting plate. A spring 12 is sleeved on the circumferential surface of the rotating rod 9. An annular plate 11 is slidably connected to the circumferential surface of the rotating rod 9. The spring 12 is fixedly connected between the annular plate 11 and the limiting plate. A handle shell 10 is slidably connected to the outer side of the rotating rod 9. The handle shell 10 is clamped on the right end face of the rotating wheel 1, and the left end face of the annular plate 11 is pressed on the left inner wall of the handle shell 10, and the annular plate 11, the spring 12 and the limiting plate are all located in the handle shell 10.

[0028] During operation, when the wheel 1 needs to be rotated, the handle shell 10 is rotated and pulled so that the left end surface of the handle shell 10 is attached to the right end surface of the wheel 1. The elastic squeezing of the spring 12 makes it easier for the handle shell 10 to be perpendicular to the wheel 1. Shaking the handle shell 10 can drive the wheel 1 to rotate, which is very convenient. When the wheel 1 does not need to be rotated, the handle shell 10 can be pulled and rotated to put the handle shell 10 into the accommodating groove 6, thereby saving more space and helping to prevent the user's clothes from accidentally scratching the handle shell 10.

[0029] Specifically, a stop ring 13 is sleeved on the circumferential surface of the threaded tube 5 , a locking nut 14 is threadedly connected to the circumferential surface of the threaded tube 5 , and the stop ring 13 is located between the locking nut 14 and the threaded fixing seat 2 .

[0030] During operation, after the position of the baffle plate of the seeder discharge port is adjusted, the locking nut 14 is rotated and the locking nut 14 moves to the side close to the threaded fixing seat 2, so that the threaded fixing seat 2 and the locking nut 14 clamp the stop ring 13, thereby increasing the friction force by increasing the pressure, which is beneficial to avoid accidental rotation of the threaded tube 5 and causing accidental movement of the baffle.

[0031] Working principle of this utility model:

[0032] When it is necessary to adjust the position of the baffle plate of the seeder discharge port, the wheel 1 is rotated. The rotation of the wheel 1 drives the connecting plate 3 and the threaded tube 5 to rotate. Since the threaded fixing seat 2 is fixed on the seeder, the threaded cooperation of the threaded tube 5 and the threaded fixing seat 2 drives the threaded tube 5 to move left. Since the right part of the shaft core 4 is stuck between the connecting plate 3 and the wheel 1 through the limiting latch 7, the connecting plate 3 and the wheel 1 move left, driving the shaft core 4 to move left. Since the left part of the shaft core 4 is inserted in the square limiting hole of the seeder, the shaft core 4 will not rotate while sliding to the left. Since the right part of the shaft core 4 is connected to the wheel 1 and the connecting plate 3 through two bearings 8, the friction between the shaft core 4 and the wheel 1 and the connecting plate 3 is reduced, thereby facilitating the rotation of the connecting plate 3. The shaft core 4 rotates left to drive the baffle plate to move, thereby adjusting the size of the seeder discharge port.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the specification only describe the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjusting hand wheel, comprising a threaded fixing seat (2), characterized in that: The threaded fixing seat (2) is fixedly connected to the seed drill, and further comprises: A threaded tube (5), the threaded tube (5) being threadably connected to a threaded fixing seat (2), the right end surface of the threaded tube (5) being fixedly connected to a connecting plate (3), the right end surface of the connecting plate (3) being detachably connected to a rotating wheel (1) via screws; An axis core (4), the axis core (4) being located in the threaded tube (5), the left end face of the axis core (4) being fixedly connected to the feed opening baffle, the right part of the axis core (4) being plugged with a limit pin (7), the limit pin (7) being clamped between the connecting plate (3) and the rotating wheel (1); Two bearings (8), wherein the inner walls of the bearings (8) are fixedly connected to the outer surface of the shaft core (4), and the outer surfaces of the bearings (8) are fixedly connected to the inner walls of the rotating wheel (1) and the connecting plate (3).

2. The adjusting hand wheel according to claim 1, characterized in that: The left part of the shaft core (4) is arranged as a rectangular parallelepiped, the right part of the shaft core (4) is arranged as a cylinder, and the left part of the shaft core (4) is inserted into a square limiting hole of the seed drill in a transversely sliding manner.

3. The adjusting hand wheel according to claim 1, characterized in that: The right end surface of the rotating wheel (1) is provided with a receiving groove (6), the left inner wall of the receiving groove (6) is rotatably hinged with a rotating rod (9), the right end surface of the rotating rod (9) is fixedly connected to a limiting plate, the circumferential surface of the rotating rod (9) is sleeved with a spring (12), the circumferential surface of the rotating rod (9) is slidably connected to an annular plate (11), the spring (12) is fixedly connected between the annular plate (11) and the limiting plate, the outer side of the rotating rod (9) is slidably connected to a handle shell (10), the handle shell (10) is clamped to the right end surface of the rotating wheel (1), the left end surface of the annular plate (11) is pressed against the left inner wall of the handle shell (10), and the annular plate (11), the spring (12) and the limiting plate are all located inside the handle shell (10).

4. The adjusting hand wheel according to claim 1, characterized in that: A stop ring (13) is sleeved on the circumferential surface of the threaded tube (5), a locking nut (14) is threadedly connected to the circumferential surface of the threaded tube (5), and the stop ring (13) is located between the locking nut (14) and the threaded fixing seat (2).

Images