Seeding unit capable of automatically adjusting ground pressure in real time

Abstract

The utility model discloses a seeding unit capable of automatically adjusting ground pressure in real time, which comprises a three-point suspension lower pull rod, a seeding support, a ditching mechanism, a soil tightness sensor and a pressurizing mechanism, and the soil tightness sensor is connected with a ditching wheel and is used for detecting the pressure of the ditching wheel; the pressurizing mechanism comprises a power cylinder. The technical scheme provided by the utility model has the beneficial effects that the pressure of the ditching wheel is continuously detected through the soil tightness sensor, so that the tightness of soil is detected, when the tightness of the soil is increased, the power cylinder retracts, and the connecting block applies a downward counter-acting force to the bent plate, so that the bent plate is subjected to a downward pressure, and the furrowing effect is improved. The bending plate drives the front end of the sowing support to press downwards, so that the pressure of the ditching wheel to the ground is increased, when the tightness degree of soil is reduced, the power cylinder extends, the pressure of the ditching wheel to the ground is reduced, and the device can automatically adjust the pressure of the ditching wheel to the ground in real time, so that the depths of grooves formed by the sowing unit are approximately kept consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of sowing devices, in particular to a sowing unit capable of automatically adjusting the pressure on the ground in real time. Background Art

[0002] Seeders are planting machines that sow crop seeds. Seeders used for a certain type of crop are often named after the crop type, such as grain drills, corn seed drills, cotton seed drills, forage spreaders, etc.

[0003] The sowing unit of a seed drill usually includes a furrowing mechanism for digging furrows. When the furrowing mechanism of the sowing unit is digging furrows, the depth of the furrows dug will be affected by the looseness of the soil. The depth of the furrows dug in looser soil will be greater than the depth of the furrows dug in tighter soil. If the soil tightness at different locations of a field is inconsistent, the depth of the furrows dug will be different, resulting in different burial depths of seeds, affecting the sowing effect of the sowing unit. Utility Model Content

[0004] In view of this, it is necessary to provide a sowing unit that can automatically adjust the ground pressure in real time, so as to solve the technical problem that the depth of the groove dug by the furrowing mechanism of the sowing unit will be affected by the looseness of the soil, resulting in different depths of the grooves dug, resulting in different burial depths of seeds and affecting the sowing effect of the sowing unit.

[0005] In order to achieve the above object, the utility model provides a sowing unit capable of automatically adjusting the pressure on the ground in real time, comprising:

[0006] A three-point suspension lower rod, the three-point suspension lower rod comprising a connecting rod and a connecting block, one end of the connecting rod is used to be fixed to the tractor, and the other end of the connecting rod is fixedly connected to the connecting block;

[0007] A sowing support, one end of which is hinged to the connecting block, and the other end of which is rotatably provided with a roller;

[0008] A furrowing mechanism, the furrowing mechanism comprising a furrowing wheel, the furrowing wheel being rotatably arranged in the middle of the sowing support;

[0009] a soil looseness sensor, the soil looseness sensor being connected to the trenching wheel and used to detect the pressure of the trenching wheel; and

[0010] A pressurizing mechanism, the pressurizing mechanism includes a power cylinder, a bent plate and a support rod, the number of the bent plates is two, the support rod abuts against the lower end surface of the connecting block, the two bent plates are respectively fixed at the two ends of the support rod, the two bent plates are respectively located on both sides of the connecting block, the middle part of the bent plate is hinged to the sowing bracket, the other end of the bent plate is hinged to one end of the power cylinder, the other end of the power cylinder is hinged to the sowing bracket, and the power cylinder can adjust the output power of the power cylinder according to the tightness of the soil detected by the soil tightness sensor.

[0011] In some embodiments, the sowing unit capable of automatically adjusting the ground pressure in real time further comprises a first fixing rod, the first fixing rod is rotatably disposed on the sowing support, and the two bent plates are respectively fixed on both ends of the first fixing rod.

[0012] In some embodiments, the sowing unit that automatically adjusts the ground pressure in real time also includes a second fixed rod, both ends of which are fixedly connected to the other ends of the two bent plates respectively, and one end of the power cylinder is hinged to the second fixed rod.

[0013] In some embodiments, the power cylinder is a pressurized cylinder, a cylinder body of the pressurized cylinder is hinged to the sowing support, and an output shaft of the pressurized cylinder is hinged to the second fixed rod.

[0014] In some embodiments, the furrowing mechanism also includes a vertical rod, the upper end of the vertical rod is fixed to the sowing support, the soil tightness sensor includes a pressure sensor and a mounting block, the fixed end of the pressure sensor is fixed to the lower end of the vertical rod, the mounting block is fixed to the detection end of the pressure sensor, and the furrowing wheel is rotatably disposed on the mounting block.

[0015] In some embodiments, the sowing unit capable of automatically adjusting the ground pressure in real time further comprises a seeding tube, wherein the seeding tube is fixed to the sowing support, and the lower end of the seeding tube is located behind the furrowing wheel.

[0016] Compared with the prior art, the technical solution proposed by the utility model has the following beneficial effects: when in use, the three-point suspension lower tie rod is fixed to the tractor, and the tractor drives the sowing support, the roller, and the furrowing wheel to move via the three-point suspension lower tie rod, and the furrowing wheel opens a furrow for sowing on the soil, and at the same time, the pressure of the furrowing wheel is continuously detected by the soil tightness sensor, so as to detect the tightness of the soil. When the tightness of the soil increases, the power cylinder retracts. When the power cylinder retracts, the bent plate has a tendency to rotate clockwise, so that the support rod squeezes the connecting block upward. Since the connecting block is fixed to the tractor, the tractor has a large weight. The connecting block cannot move upward, so the connecting block applies a downward reaction force to the bent plate, so that the bent plate is subjected to downward pressure, and the bent plate drives the front end of the sowing bracket to be pressed downward, thereby increasing the pressure of the trenching wheel on the ground, thereby offsetting the effect of increased soil tightness on the depth of the trenched groove; conversely, when the soil tightness decreases, the power cylinder extends, thereby reducing the pressure of the trenching wheel on the ground, thereby offsetting the effect of reduced soil tightness on the depth of the trenched groove, so that the utility model can automatically adjust the pressure of the trenching wheel on the ground in real time, so that the depth of the trenched groove of the sowing unit remains roughly consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an embodiment of a sowing unit for automatically adjusting the ground pressure provided by the utility model in real time after being connected to a tractor;

[0018] Figure 2 yes Figure 1 A structural diagram of a sowing unit capable of automatically adjusting the ground pressure in real time;

[0019] In the figure: 1-three-point suspension lower rod, 11-connecting rod, 12-connecting block, 2-seeding bracket, 21-roller, 3-ditching mechanism, 31-ditching wheel, 32-vertical rod, 4-soil tightness sensor, 5-pressurizing mechanism, 51-power cylinder, 52-bending plate, 521-first fixed rod, 522-second fixed rod, 53-support rod, 6-tractor, 7-seeding tube. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0021] Please refer to Figure 1-Figure 2 The utility model provides a sowing unit capable of automatically adjusting the ground pressure in real time, comprising a three-point suspension lower pull rod 1, a sowing support 2, a furrowing mechanism 3, a soil tightness sensor 4 and a pressurizing mechanism 5.

[0022] The three-point suspension lower rod 1 comprises a connecting rod 11 and a connecting block 12, one end of the connecting rod 11 is used to be fixed to the tractor 6, and the other end of the connecting rod 11 is fixedly connected to the connecting block 12;

[0023] One end of the sowing support 2 is hinged to the connecting block 12, and the other end of the sowing support 2 is rotatably provided with a roller 21;

[0024] The furrowing mechanism 3 includes a furrowing wheel 31, and the furrowing wheel 31 is rotatably arranged in the middle of the sowing support 2;

[0025] The soil tightness sensor 4 is connected to the trenching wheel 31 and is used to detect the pressure of the trenching wheel 31;

[0026] The pressurizing mechanism 5 includes a power cylinder 51, a bent plate 52 and a support rod 53. There are two bent plates 52. The support rod 53 abuts against the lower end surface of the connecting block 12. The two bent plates 52 are respectively fixed to the two ends of the support rod 53. The two bent plates 52 are respectively located on both sides of the connecting block 12. The middle of the bent plate 52 is hinged to the sowing support 2. The other end of the bent plate 52 is hinged to one end of the power cylinder 51. The other end of the power cylinder 51 is hinged to the sowing support 2. The power cylinder 51 can adjust the power output of the power cylinder 51 according to the tightness of the soil detected by the soil tightness sensor 4. In this embodiment, the power cylinder 51 is a hydraulic oil cylinder, and the power output of the power cylinder 51 can be adjusted by adjusting the pressure of the hydraulic oil in the hydraulic oil cylinder.

[0027] When in use, the three-point suspension lower tie rod 1 is fixed to the tractor 6, and the tractor 6 drives the sowing support 2, the roller 21, and the furrowing wheel 31 to move via the three-point suspension lower tie rod 1. The furrowing wheel 31 opens a furrow for sowing on the soil. At the same time, the pressure of the furrowing wheel 31 is continuously detected by the soil tightness sensor 4, so as to detect the tightness of the soil. When the tightness of the soil increases, the power cylinder 51 retracts. When the power cylinder 51 retracts, the bent plate 52 has a tendency to rotate clockwise, so that the support rod 53 presses the connecting block 12 upward. Since the connecting block 12 is fixed to the tractor 6 and the tractor 6 has a large weight, the connecting block 12 cannot move upward. Therefore, the connecting block 12 applies a downward reaction force to the bent plate 52, so the bent plate 52 is subjected to downward pressure, and the bent plate 52 drives the front end of the sowing bracket 2 to be pressed downward, so that the pressure of the ditching wheel 31 on the ground increases, thereby offsetting the influence of the increased looseness of the soil on the depth of the opened groove. Conversely, when the looseness of the soil decreases, the power cylinder 51 extends, so that the pressure of the ditching wheel 31 on the ground decreases, thereby offsetting the influence of the reduced looseness of the soil on the depth of the opened groove. Therefore, the utility model can automatically adjust the pressure of the ditching wheel 31 on the ground in real time, so that the depth of the groove opened by the sowing unit remains roughly consistent.

[0028] In order to realize the hinge connection between the middle part of the bent plate 52 and the sowing support 2, please refer to Figure 1-Figure 2 In a preferred embodiment, the sowing unit that automatically adjusts the ground pressure in real time also includes a first fixed rod 521, which is rotatably set on the sowing bracket 2, and the two bent plates 52 are respectively fixed at both ends of the first fixed rod 521.

[0029] In order to realize the hinge connection between the other end of the bent plate 52 and one end of the power cylinder 51, please refer to Figure 1-Figure 2 In a preferred embodiment, the sowing unit that automatically adjusts the ground pressure in real time also includes a second fixed rod 522, the two ends of the second fixed rod 522 are respectively fixedly connected to the other ends of the two bent plates 52, and one end of the power cylinder 51 is hinged to the second fixed rod 522.

[0030] In order to realize the function of the power cylinder 51, please refer to Figure 1-Figure 2 In a preferred embodiment, the power cylinder 51 is a pressurized cylinder. In this embodiment, the cylinder body of the pressurized cylinder is hinged to the sowing support 2, and the output shaft of the pressurized cylinder is hinged to the second fixed rod 522.

[0031] In order to realize the groove opening wheel 31 rotatingly arranged at the other end of the groove opening bracket 31, please refer to Figure 1-Figure 2 In a preferred embodiment, the ditching mechanism 3 also includes a vertical rod 32, the upper end of the vertical rod 32 is fixed to the sowing support 2, the soil tightness sensor 4 includes a pressure sensor and a mounting block, the fixed end of the pressure sensor is fixed to the lower end of the vertical rod 32, the mounting block is fixed to the detection end of the pressure sensor, and the ditching wheel 31 is rotatably set on the mounting block. When in use, the pressure of the ditching wheel 31 is transmitted to the mounting block, and the pressure of the mounting block is detected by the pressure sensor, thereby detecting the pressure between the ditching wheel 31 and the soil.

[0032] To realize the seeding function of the seeding unit, please refer to Figure 1-Figure 2 In a preferred embodiment, the sowing unit that automatically adjusts the ground pressure in real time also includes a seeding tube 7, which is fixed to the sowing bracket 2. The lower end of the seeding tube 7 is located behind the furrowing wheel 31. When in use, the upper end of the seeding tube 7 is connected to the outlet of the seed meter, and the seeds discharged by the seed meter are discharged into the groove opened by the furrowing wheel 31 through the seeding tube 7, thereby realizing the seeding function.

[0033] In order to better understand the present invention, the following Figure 1-Figure 2The working process of the sowing unit with real-time automatic adjustment of ground pressure provided by the utility model is described in detail: when in use, the three-point suspension lower pull rod 1 is fixed to the tractor 6, and the tractor 6 drives the sowing support 2, the roller 21, and the furrowing wheel 31 to move via the three-point suspension lower pull rod 1, and the furrowing wheel 31 opens a furrow for sowing on the soil. At the same time, the pressure of the furrowing wheel 31 is continuously detected by the soil tightness sensor 4, so as to detect the tightness of the soil. When the tightness of the soil increases, the power cylinder 51 retracts. When the power cylinder 51 retracts, the bent plate 52 has a tendency to rotate clockwise, so that the support rod 53 squeezes the connecting block 12 upward. The connecting block 12 is fixed to the tractor 6. The tractor 6 has a large weight, so the connecting block 12 cannot move upward. Therefore, the connecting block 12 applies a downward reaction force to the bent plate 52. Therefore, the bent plate 52 is subjected to downward pressure. The bent plate 52 drives the front end of the sowing bracket 2 to be pressed downward, so that the pressure of the trenching wheel 31 on the ground increases, thereby offsetting the effect of the increased tightness of the soil on the depth of the trench. Conversely, when the tightness of the soil decreases, the power cylinder 51 extends, so that the pressure of the trenching wheel 31 on the ground decreases, thereby offsetting the effect of the reduced tightness of the soil on the depth of the trench, so that the depth of the trench opened by the sowing unit remains roughly consistent.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A sowing unit capable of automatically adjusting the ground pressure in real time, characterized in that: include: A three-point suspension lower rod, the three-point suspension lower rod comprising a connecting rod and a connecting block, one end of the connecting rod is used to be fixed to the tractor, and the other end of the connecting rod is fixedly connected to the connecting block; A sowing support, one end of which is hinged to the connecting block, and the other end of which is rotatably provided with a roller; A furrowing mechanism, the furrowing mechanism comprising a furrowing wheel, the furrowing wheel being rotatably arranged in the middle of the sowing support; a soil looseness sensor, the soil looseness sensor being connected to the trenching wheel and used to detect the pressure of the trenching wheel; and A pressurizing mechanism, the pressurizing mechanism includes a power cylinder, a bent plate and a support rod, the number of the bent plates is two, the support rod abuts against the lower end surface of the connecting block, the two bent plates are respectively fixed at the two ends of the support rod, the two bent plates are respectively located on both sides of the connecting block, the middle part of the bent plate is hinged to the sowing bracket, the other end of the bent plate is hinged to one end of the power cylinder, the other end of the power cylinder is hinged to the sowing bracket, and the power cylinder can adjust the output power of the power cylinder according to the tightness of the soil detected by the soil tightness sensor.

2. The sowing unit capable of automatically adjusting the ground pressure in real time according to claim 1, characterized in that: The sowing unit capable of automatically adjusting the ground pressure in real time further comprises a first fixing rod, the first fixing rod is rotatably arranged on the sowing support, and the two bent plates are respectively fixed on two ends of the first fixing rod.

3. The sowing unit capable of automatically adjusting the ground pressure in real time according to claim 1, characterized in that: The sowing unit capable of automatically adjusting the ground pressure in real time further comprises a second fixing rod, both ends of which are respectively fixedly connected to the other ends of the two bent plates, and one end of the power cylinder is hinged to the second fixing rod.

4. The sowing unit capable of automatically adjusting the ground pressure in real time according to claim 1, characterized in that: The power cylinder is a pressurized cylinder, a cylinder body of the pressurized cylinder is hinged to the sowing support, and an output shaft of the pressurized cylinder is hinged to the second fixing rod.

5. The sowing unit capable of automatically adjusting the ground pressure in real time according to claim 1, characterized in that: The furrowing mechanism also includes a vertical rod, the upper end of which is fixed to the sowing support, the soil tightness sensor includes a pressure sensor and a mounting block, the fixed end of the pressure sensor is fixed to the lower end of the vertical rod, the mounting block is fixed to the detection end of the pressure sensor, and the furrowing wheel is rotatably disposed on the mounting block.

6. The sowing unit capable of automatically adjusting the ground pressure in real time according to claim 1, characterized in that: The sowing unit capable of automatically adjusting the ground pressure in real time further comprises a sowing tube, which is fixed to the sowing support, and the lower end of the sowing tube is located behind the furrowing wheel.

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