Press wheel adjusting mechanism for seeder

Abstract

The utility model discloses a press wheel adjusting mechanism for a seeder, which comprises a press wheel and a transverse pipe, two ends in the transverse pipe are respectively connected with a sliding block capable of moving along the left-right direction in a sliding manner, a wheel shaft is hinged on the sliding blocks, the press wheel is rotatably connected with the wheel shaft, the wheel shaft is connected with a telescopic rod, and the upper part of the transverse pipe is rotatably connected with a screw rod. The threaded rod is in threaded connection with a threaded ring, the threaded ring is hinged to the two telescopic rods, the interior of the transverse pipe is rotationally connected with a driven shaft, the two ends of the driven shaft are in threaded connection with two sliding blocks respectively, the two sliding blocks can move face to face or back to back, the driven shaft is provided with a driven bevel gear, and the rear portion of the transverse pipe is rotationally connected with a driving shaft. And a driving bevel gear meshed with the driven bevel gear is mounted on the driving shaft. According to the technical scheme, the distance between the two press wheels and the inclination angle of the press wheels can be adjusted, use is convenient, and the applicability of the press wheels is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seed drills, and in particular to a pressing wheel adjusting mechanism for seed drills. Background Art

[0002] The existing suppressing wheel adjustment mechanism, such as Chinese patent 202320603861.3, discloses a suppressing wheel angle adjustment device, comprising a suppressing wheel upper bracket, a suppressing wheel lower bracket and a suppressing wheel, wherein the suppressing wheel lower bracket is arranged at the lower end of the suppressing wheel upper bracket, and the suppressing wheels are symmetrically arranged on both sides of the suppressing wheel lower bracket. There are two suppressing wheel lower brackets and the two suppressing wheel lower brackets are detachably connected, and the suppressing wheel lower bracket and the suppressing wheel upper bracket are rotatably connected.

[0003] The above technical solution has the following disadvantages: the adjustment process requires manual bending of the pressing wheel to change its angle and then fixation, and the distance between the two pressing wheels cannot be adjusted, which is inconvenient to use. Utility Model Content

[0004] The utility model aims to provide a pressing wheel adjustment mechanism for a seed drill in view of the above problems, which can adjust the distance between two pressing wheels and the inclination angle of the pressing wheels.

[0005] To achieve the above-mentioned purpose, the utility model discloses a pressure wheel adjustment mechanism for a seed drill, the mechanism includes a pressure wheel and a transverse tube, both ends of the transverse tube are slidably connected with a slider that can move in the left and right directions, the slider is hinged with a wheel axle, the pressure wheel is rotatably connected to the wheel axle, a telescopic rod is connected to the wheel axle, a screw is rotatably connected to the upper part of the transverse tube, a threaded ring is threadedly connected to the screw, the threaded ring is hinged to the two telescopic rods, a driven shaft is rotatably connected to the inside of the transverse tube, both ends of the driven shaft are respectively threadedly connected to the two sliders, the two sliders can move toward or away from each other, a driven bevel gear is installed on the driven shaft, a driving shaft is rotatably connected to the rear part of the transverse tube, and a driving bevel gear meshing with the driven bevel gear is installed on the driving shaft.

[0006] When the distance between the two pressing wheels needs to be adjusted, the driving shaft is rotated, and the driven shaft is driven to rotate through the driving bevel gear and the driven bevel gear, and the two sliders move closer to or farther away from each other, thereby changing the distance between the two pressing wheels.

[0007] When the tilt angle of the pressing wheel needs to be adjusted, the screw rod is rotated to drive the threaded ring to move downward, thereby prying the telescopic rod and the wheel axle to change the tilt angle.

[0008] The technical solution of the present application can adjust the distance between the two pressing wheels and the inclination angle of the pressing wheels, is easy to use, and improves the applicability of the pressing wheels.

[0009] Preferably, a screw connection seat is connected to the upper part of the horizontal pipe, and the lower end of the screw is rotatably connected to the screw connection seat.

[0010] This structure facilitates the installation of the screw.

[0011] Preferably, a driving shaft connection seat is connected to the rear part of the horizontal pipe, and the driving shaft is rotatably connected to the driving shaft connection seat.

[0012] This structure facilitates the installation of the driving shaft.

[0013] Preferably, a wheel shaft installation groove is provided at the outer end of the slider. The wheel shaft installation groove penetrates through the upper and lower sides of the slider, and the hinge shaft of the wheel shaft is located in the wheel shaft installation groove.

[0014] This structure facilitates the installation of the hinge shaft. At the same time, the wheel shaft and the end of the telescopic rod are located in the wheel shaft installation groove, and the structure is compact.

[0015] Preferably, wheel shaft avoidance grooves for avoiding the wheel shaft are provided in the upper and lower parts of the horizontal pipe, and a telescopic rod avoidance groove for avoiding the telescopic rod is provided in the upper part of the horizontal pipe.

[0016] During use, the wheel shaft avoidance groove is used to avoid the wheel shaft, and the telescopic rod avoidance groove is used to avoid the telescopic rod, facilitating the movement of the wheel shaft and the telescopic rod.

[0017] Preferably, the width of the wheel shaft avoidance groove is smaller than the width of the slider, and the width of the telescopic rod avoidance groove is smaller than the width of the slider.

[0018] During use, the edge of the slider is located inside the horizontal pipe, ensuring the reliability of the slider movement.

[0019] Preferably, a screw handle is installed on the screw, and a driving shaft handle is installed on the driving shaft.

[0020] During use, it is convenient to operate the screw and the driving shaft.

[0021] Preferably, a front connecting plate is connected to the front part of the horizontal pipe.

[0022] This structure facilitates the installation of the horizontal pipe on the frame.

[0023] In summary, the beneficial effects of the present utility model are as follows: When it is necessary to adjust the distance between the two pressing wheels, rotate the driving shaft, drive the driven shaft to rotate through the driving bevel gear and the driven bevel gear, and the two sliders approach or move away from each other, thereby changing the distance between the two pressing wheels. When it is necessary to adjust the inclination angle of the pressing wheel, rotate the screw to drive the threaded ring to move downward, and then pry the telescopic rod and the wheel shaft to change their inclination angles. The technical solution of this application can adjust the distance between the two pressing wheels and the inclination angle of the pressing wheel, which is convenient to use and improves the applicability of the pressing wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a pressing wheel adjusting mechanism for a seeding machine of the present utility model;

[0025] Figure 2 It is a schematic internal structure diagram of a pressing wheel adjusting mechanism for a seeding machine of the present utility model;

[0026] Figure 3 is Figure 1 a schematic structural diagram of the cross-section A-A in

[0027] In the figure: 1, horizontal pipe; 2, front connecting plate; 3, wheel axle; 4, pressing wheel; 5, telescopic rod; 6, threaded ring; 7, screw rod; 8, screw rod handle; 9, screw rod connecting seat; 10, wheel axle avoidance groove; 11, telescopic rod avoidance groove; 12, wheel axle installation groove; 13, slider; 14, driven shaft; 15, driven bevel gear; 16, driving shaft; 17, driving bevel gear; 18, driving shaft handle; 19, driving shaft connecting seat; 20, hinge shaft. Specific embodiments

[0028] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0030] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "plurality" is two or more.

[0031] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0032] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0033] As Figures 1 to 3 shown, a press wheel adjusting mechanism for a seeder includes a press wheel 4, and also includes a horizontal pipe 1. At both ends inside the horizontal pipe 1, there is a slider 13 that can move in the left - right direction. A wheel shaft 3 is hinged on the slider 13. The press wheel 4 is rotationally connected to the wheel shaft 3. An expansion rod 5 is connected to the wheel shaft 3. A screw rod 7 is rotatably connected to the upper part of the horizontal pipe 1. A threaded ring 6 is threadedly connected to the screw rod 7. The threaded ring 6 is hinged to two expansion rods 5. A driven shaft 14 is rotatably connected inside the horizontal pipe 1. The two ends of the driven shaft 14 are respectively threadedly connected to the two sliders 13. The two sliders 13 can move towards each other or away from each other. A driven bevel gear 15 is installed on the driven shaft 14. A driving shaft 16 is rotatably connected to the rear part of the horizontal pipe 1. A driving bevel gear 17 that meshes with the driven bevel gear 15 is installed on the driving shaft 16.

[0034] A screw rod handle 8 is installed on the screw rod 7, and a driving shaft handle 18 is installed on the driving shaft 16. When in use, it is convenient to operate the screw rod 7 and the driving shaft 16. A front connecting plate 2 is connected to the front part of the horizontal pipe 1. This structure facilitates the installation of the horizontal pipe 1 on the frame.

[0035] When it is necessary to adjust the distance between the two press wheels 4, rotate the driving shaft 16. Drive the driven shaft 14 to rotate through the driving bevel gear 17 and the driven bevel gear 15. The two sliders 13 approach or move away from each other, and then the distance between the two press wheels 4 is changed. When it is necessary to adjust the inclination angle of the press wheel 4, rotate the screw rod 7 to drive the threaded ring 6 to move downward, and then pry the expansion rod 5 and the wheel shaft 3 to change their inclination angles.

[0036] The technical solution of the present application can adjust the distance between the two press wheels 4 and the inclination angle of the press wheel 4, which is convenient to use and improves the applicability of the press wheel 4.

[0037] Specifically, a screw rod connecting seat 9 is connected to the upper part of the horizontal pipe 1. The lower end of the screw rod 7 is rotatably connected to the screw rod connecting seat 9. This structure facilitates the installation of the screw rod 7. A driving shaft connecting seat 19 is connected to the rear part of the horizontal pipe 1. The driving shaft 16 is rotatably connected to the driving shaft connecting seat 19. This structure facilitates the installation of the driving shaft 16. A wheel shaft installation groove 12 is opened at the outer end of the slider 13. The wheel shaft installation groove 12 penetrates through the upper and lower sides of the slider 13. The hinge shaft 20 of the wheel shaft 3 is located in the wheel shaft installation groove 12. This structure facilitates the installation of the hinge shaft 20. At the same time, the ends of the wheel shaft 3 and the expansion rod 5 are located in the wheel shaft installation groove 12, and the structure is compact.

[0038] Specifically, the upper and lower parts of the transverse tube 1 are provided with axle avoidance grooves 10 for avoiding the axle 3, and the upper part of the transverse tube 1 is provided with a telescopic rod avoidance groove 11 for avoiding the telescopic rod 5. When in use, the axle avoidance groove 10 is used to avoid the axle 3, and the telescopic rod avoidance groove 11 is used to avoid the telescopic rod 5, so as to facilitate the movement of the axle 3 and the telescopic rod 5. The width of the axle avoidance groove 10 is smaller than the width of the slider 13, and the width of the telescopic rod avoidance groove 11 is smaller than the width of the slider 13. When in use, the edge of the slider 13 is located in the transverse tube 1, so as to ensure the reliability of the movement of the slider 13.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A regulating mechanism for a press wheel of a seeder, including a press wheel (4), characterized in that, It further includes a horizontal pipe (1). At both inner ends of the horizontal pipe (1), there is a slider (13) that can move in the left-right direction. A wheel shaft (3) is hinged to the slider (13). The pressing wheel (4) is rotatably connected to the wheel shaft (3). A telescopic rod (5) is connected to the wheel shaft (3). A screw rod (7) is rotatably connected to the upper part of the horizontal pipe (1). A threaded ring (6) is threadedly connected to the screw rod (7). The threaded ring (6) is hinged to two telescopic rods (5). A driven shaft (14) is rotatably connected to the inside of the horizontal pipe (1). The two ends of the driven shaft (14) are respectively threadedly connected to the two sliders (13). The two sliders (13) can move towards or away from each other. A driven bevel gear (15) is installed on the driven shaft (14). A driving shaft (16) is rotatably connected to the rear part of the horizontal pipe (1). A driving bevel gear (17) that meshes with the driven bevel gear (15) is installed on the driving shaft (16).

2. The press wheel adjusting mechanism for a seeder according to claim 1, characterized in that, A screw rod connecting seat (9) is connected to the upper part of the horizontal pipe (1). The lower end of the screw rod (7) is rotatably connected to the screw rod connecting seat (9).

3. The seed drill press wheel adjusting mechanism according to claim 1, characterized in that, A driving shaft connecting seat (19) is connected to the rear part of the horizontal pipe (1). The driving shaft (16) is rotatably connected to the driving shaft connecting seat (19).

4. The press wheel adjusting mechanism for a seeding machine according to any one of claims 1 to 3, characterized in that, A wheel shaft installation groove (12) is formed at the outer end of the slider (13). The wheel shaft installation groove (12) communicates with the upper and lower sides of the slider (13). The hinge shaft (20) of the wheel shaft (3) is located in the wheel shaft installation groove (12).

5. The seed drill press wheel adjusting mechanism according to claim 4, characterized in that Wheel shaft avoidance grooves (10) for avoiding the wheel shaft (3) are formed in the upper and lower parts of the horizontal pipe (1). An expansion rod avoidance groove (11) for avoiding the telescopic rod (5) is formed in the upper part of the horizontal pipe (1).

6. The press wheel adjusting mechanism for a seeder according to claim 5, characterized in that, The width of the wheel shaft avoidance groove (10) is smaller than the width of the slider (13). The width of the expansion rod avoidance groove (11) is smaller than the width of the slider (13).

7. The press wheel adjusting mechanism for a seeder according to any one of claims 1 to 3, characterized in that, A screw rod handle (8) is installed on the screw rod (7). A driving shaft handle (18) is installed on the driving shaft (16).

8. The seed drill press wheel adjusting mechanism according to any one of claims 1 to 3, characterized in that, A front connecting plate (2) is connected to the front part of the horizontal pipe (1).

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