Seeding motor and seeder

Abstract

The utility model discloses a seeding motor and a seeding machine, and relates to the field of agricultural machinery, the seeding motor comprises a motor main body, a speed reducer and a driver, both ends of the motor main body are provided with rotating shafts, and the two rotating shafts rotate synchronously; the speed reducer is located at one end of the motor main body, the speed reducer is connected with a rotating shaft at one end of the motor main body, an output shaft is arranged at one end, deviating from the motor main body, of the speed reducer, and the output shaft is used for driving a seed sowing device to rotate; the driver is located at the other end of the motor body and comprises a rotating speed sensor and a speed sensor, the rotating speed sensor is used for detecting the rotating speed of a rotating shaft of the motor body, and the speed sensor is used for detecting the moving speed of the seeding motor. The utility model aims to ensure the seeding uniformity of the seeding machine and avoid the phenomenon of seed leakage.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a seeding motor and a seeder applying the seeding motor. Background Technique

[0002] At present, the seeders used in agriculture generally include ground wheels, seed collecting bins, and seed metering devices. Among them, the seed metering device is a cylindrical hollow structure with a plurality of openings penetrating to the inside. During the movement of the seeder, the ground wheels are driven to rotate, and the seeds in the seed collecting bin fall into the seed metering device at a predetermined speed. The ground wheels drive the seed metering device to rotate, so that the seeds in the seed metering device are evenly dropped into the planting pits through the plurality of openings of the seed metering device. However, due to the complexity of the field environment, for example, in mountainous areas, sloping fields, slippery fields and other environments, the ground wheels may slip or become suspended, and there may be a situation where the seeder moves but the ground wheels do not rotate. This leads to a situation where the seeder moves but the seed metering device does not rotate, and finally there is a phenomenon of missed seeding. Content of the Utility Model

[0003] The main object of the utility model is to provide a seeding motor and a seeder applying the seeding motor, aiming to ensure the seeding uniformity of the seeder and avoid the phenomenon of missed seeding.

[0004] To achieve the above object, the seeding motor proposed by the utility model is applied to a seeder, and the seeding motor includes:

[0005] A motor main body, with rotating shafts provided at both ends of the motor main body, and the two rotating shafts rotate synchronously;

[0006] A speed reducer, which is located at one end of the motor main body. The speed reducer is connected to the rotating shaft at one end of the motor main body. An output shaft is provided at the end of the speed reducer facing away from the motor main body, and the output shaft is used to drive the seed metering device to rotate;

[0007] A driver, which is located at the other end of the motor main body. The driver includes a rotational speed sensor and a speed sensor. The rotational speed sensor is used to detect the rotational speed of the rotating shaft of the motor main body, and the speed sensor is used to detect the moving speed of the seeding motor.

[0008] In one embodiment, the motor main body is a DC servo motor.

[0009] In one embodiment, the speed reducer is a gear speed reducer or a planetary speed reducer.

[0010] In one embodiment, the speed reducer is detachably connected to the seeding motor.

[0011] In one embodiment, a plurality of through-set mounting holes are formed in the end edge of the speed reducer, and threaded holes are provided at one end of the motor body facing the speed reducer. The speed reducer further includes a plurality of lead screws, and the lead screws pass through the mounting holes and are threadedly connected to the threaded holes, so that the speed reducer is mounted to one end of the motor body.

[0012] In one embodiment, the rotating shaft of the motor body connected to the speed reducer is a special-shaped rotating shaft. A connecting shaft is provided at one end of the speed reducer close to the motor body, and a plugging groove is recessed at the end of the connecting shaft. The cross-sectional shape of the plugging groove is the same as the shape of the special-shaped rotating shaft.

[0013] In one embodiment, the driver includes:

[0014] A housing;

[0015] A control unit, the control unit includes a power semiconductor device and a control circuit, the control unit is used to detect and control the motor, and the speed sensor and the velocity sensor are arranged on the control circuit;

[0016] A heat dissipation module.

[0017] In one embodiment, the rotating shaft of the motor body extends into the housing, and the speed sensor is a magnetoelectric speed sensor.

[0018] In one embodiment, the heat dissipation module includes a heat dissipation fan and heat dissipation fins. The heat dissipation fan is located inside the housing and on the side of the control unit facing away from the motor body, and the heat dissipation fins are arranged on the control circuit.

[0019] The present invention also provides a seeding machine, which includes the seeding motor and a remote controller described in any one of the above, and the remote controller is in signal connection with the control unit.

[0020] In the technical solution provided by the present invention, the seeding motor includes a motor body, a speed reducer, and a driver. Rotating shafts are provided at both ends of the motor body, and the two rotating shafts rotate synchronously; the speed reducer is located at one end of the motor body, the speed reducer is connected to the rotating shaft at one end of the motor body, and an output shaft is provided at the end of the speed reducer facing away from the motor body, and the output shaft is used to drive the seed metering device to rotate; the driver is located at the other end of the motor body, and the driver includes a speed sensor and a velocity sensor. The speed sensor is used to detect the rotation speed of the rotating shaft of the motor body, and the velocity sensor is used to detect the moving speed of the seeding machine.

[0021] By setting a seeding motor inside the seeder, the seeding motor drives the seed metering device to rotate, ensuring that the seed metering device can continuously rotate during the movement of the seeder to ensure that the seeds inside the seed metering device can continuously discharge from the opening of the seed metering device, and then combining with the movement of the seeder to achieve continuous seeding. The speed of the motor body is reduced by a speed reducer, and a rotational speed sensor and a speed sensor are set inside the driver, so that the moving speed of the seeder and the rotational speed of the seed metering device (i.e., the seeding speed of the seeds) are corresponding. For example, when the moving speed of the seeder slows down, the speed sensor detects the slowdown and transmits the signal to the control unit of the driver, and the driver controls the motor body to reduce its rotational speed so that the moving speed of the seeder and the seeding speed of the seed metering device are corresponding, ensuring that the intervals of the sown seeds are consistent and avoiding the seed leakage phenomenon caused by the transmission method using a ground wheel in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the structures shown in these drawings.

[0023] Figure 1 A three-dimensional structure diagram of an embodiment of the seeding motor provided by the present invention;

[0024] Figure 2 A sectional structure diagram of an embodiment of the seeding motor provided by the present invention;

[0025] Figure 3 A separated structure diagram of an embodiment of the seeding motor provided by the present invention.

[0026] Explanation of the reference numerals in the drawings:

[0027] 1000, seeding motor; 1, motor body; 11, rotating shaft; 12, threaded hole; 2, speed reducer; 21, output shaft; 22, connecting shaft; 221, insertion slot; 23, mounting hole; 24, lead screw; 3, driver; 31, housing; 32, control unit.

[0028] The realization, functional characteristics and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0032] In the existing seeder, due to the transmission defect of the ground wheel, the phenomenon of missed seeding is likely to occur.

[0033] To solve this technical problem, the present invention provides a seeding motor 1000 to ensure that the intervals of the sown seeds are consistent and avoid the phenomenon of missed seeding caused by the transmission method using the ground wheel in the prior art.

[0034] Please refer to Figures 1 to 3 , the seeding motor 1000 includes a motor main body 1, a reducer 2, and a driver 3. Both ends of the motor main body 1 are provided with rotating shafts 11, and the two rotating shafts 11 rotate synchronously; the reducer 2 is located at one end of the motor main body 1, the reducer 2 is connected to the rotating shaft 11 at one end of the motor main body 1, and an output shaft 21 is provided at the end of the reducer 2 away from the motor main body 1, and the output shaft 21 is used to drive the seed metering device to rotate; the driver 3 is located at the other end of the motor main body 1, and the driver 3 includes a rotational speed sensor and a speed sensor. The rotational speed sensor is used to detect the rotational speed of the rotating shaft 11 of the motor main body 1, and the speed sensor is used to detect the moving speed of the seeder.

[0035] By arranging a seeding motor 1000 inside the seeder, the seeding motor 1000 drives the seed metering device to rotate, ensuring that the seed metering device can continuously rotate during the movement of the seeder, so as to ensure that the seeds in the seed metering device can continuously discharge from the opening of the seed metering device, and then combined with the movement of the seeder to achieve continuous seeding. The reducer 2 reduces the rotational speed of the motor main body 1, and a rotational speed sensor and a speed sensor are arranged in the driver 3, so that the moving speed of the seeder and the rotational speed of the seed metering device (i.e., the seeding speed of the seeds) are kept corresponding. For example, when the moving speed of the seeder slows down, the speed sensor detects the slowdown and transmits the signal to the control unit of the driver 3, and the driver 3 controls the rotational speed of the motor main body 1 to decrease, so that the moving speed of the seeder and the seeding speed of the seed metering device are kept consistent, ensuring that the intervals of the sown seeds are consistent and avoiding the seed leakage phenomenon caused by the transmission mode of using a ground wheel in the prior art.

[0036] In an embodiment of the present utility model, the motor main body 1 is a DC servo motor.

[0037] In an embodiment of the present utility model, the reducer 2 is a gear reducer 2, and the gear reducer 2 has the characteristics of small volume and large transmitted torque. The gear reducer is designed and manufactured on the basis of a modular combination system, with a very large number of motor combinations, installation forms and structural schemes, fine grading of transmission ratios, meeting different operating conditions, and realizing mechatronics. The gear reducer has high transmission efficiency, low energy consumption and excellent performance. The gear reducer 2 is applied to a larger seeder.

[0038] In an embodiment of the present utility model, the reducer 2 is a planetary reducer 2. The advantages of the planetary reducer are that the structure is relatively compact, the backlash is small, the accuracy is high, the service life is very long, and the rated output torque can be made very large. However, the price is slightly higher. The planetary reducer is applied to some smaller individual seeders.

[0039] In an embodiment of the present utility model, the reducer 2 is detachably connected to the seeding motor 1000. Since the seeding motor 1000 is used in the field and its application environment is relatively harsh, for example, in mountainous areas, sloping fields, slippery fields and other environments, the seeding motor 1000 often vibrates along with the seeder during use, and the overall damage to the seeding motor 1000 is relatively large. Therefore, it is necessary to frequently check and maintain the seeding motor 1000. Setting the reducer 2 and the seeding motor 1000 to be detachably connected facilitates the separate inspection of the two, and the inspection process is more convenient.

[0040] In this embodiment, a plurality of through-set mounting holes 23 are formed in the end edge of the speed reducer 2. One end of the motor body 1 facing the speed reducer 2 is provided with threaded holes 12. The speed reducer 2 further includes a plurality of lead screws 24. The lead screws 24 pass through the mounting holes 23 and are threadedly connected to the threaded holes 12, so that the speed reducer 2 is mounted to one end of the motor body 1. By forming a plurality of through mounting holes 23 in the end edge of the speed reducer 2 and threading the lead screws 24 through the mounting holes 23 and connecting them to the threaded holes 12, in this way, the installation force-bearing points of the entire speed reducer 2 penetrate the entire length direction of the speed reducer 2. In the prior art, the commonly used short screw installation method has the swing force-bearing point of the speed reducer 2 at the connection between the speed reducer 2 and the motor body 1 during the shaking of the seeding motor 1000. However, in this solution, the swing force-bearing point of the speed reducer 2 with the long lead screw 24 installation method penetrates the entire length direction of the speed reducer 2. Compared with the prior art, the installation stability of the speed reducer 2 in this solution is stronger and it is more adaptable to the application environment of the seeder.

[0041] Among them, the plurality of mounting holes 23 are evenly spaced along the end edge of the speed reducer 2.

[0042] In an embodiment of the present utility model, the rotating shaft 11 of the motor body 1 connected to the speed reducer 2 is a special-shaped rotating shaft 11. One end of the speed reducer 2 close to the motor body 1 is provided with a connecting shaft 22. A plugging groove 221 is recessed at the end of the connecting shaft 22. The cross-sectional shape of the plugging groove 221 is the same as the shape of the special-shaped rotating shaft 11. In this way, when the speed reducer 2 is disassembled from the motor body 1, the rotating shaft 11 of the motor body 1 and the connecting shaft 22 of the speed reducer 2 can be directly disassembled, which improves the disassembly efficiency without affecting the transmission efficiency of the motor body 1 and the speed reducer 2.

[0043] In an embodiment of the present utility model, the driver 3 includes a housing 31, a control unit, and a heat dissipation module. The control unit includes a power semiconductor device and a control circuit. The control unit is used to detect and control the motor. A speed sensor and a velocity sensor are arranged on the control circuit. The heat dissipation module includes a heat dissipation fan and a heat sink. The heat dissipation fan is located inside the housing 31 and on the side of the control unit facing away from the motor body. The heat sink is arranged on the control circuit.

[0044] In this embodiment, the rotating shaft 11 of the motor body 1 extends into the housing 31, and the speed sensor is a magnetoelectric speed sensor.

[0045] The present utility model further provides a seeding machine, which includes the seeding motor 1000 of each of the above embodiments and a remote controller. The remote controller is in signal connection with the control unit. The rotation speed of the seeding motor 1000 can be viewed and controlled in real time through the remote controller. For the specific structure of the seeding motor 1000, reference may be made to the above embodiments. Since this seeding machine adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated one by one here.

[0046] The above description is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A seeding motor, characterized in that, The sowing motor is applied to a sowing machine, and the sowing motor comprises: A motor body, wherein both ends of the motor body are provided with rotating shafts, and the two rotating shafts rotate synchronously; A reducer, the reducer is located at one end of the motor body, the reducer is connected to a rotating shaft at one end of the motor body, an output shaft is provided at one end of the reducer away from the motor body, and the output shaft is used to drive the seed metering device to rotate; A driver is located at the other end of the motor body, and the driver includes a rotation speed sensor and a speed sensor. The rotation speed sensor is used to detect the rotation speed of the motor body shaft, and the speed sensor is used to detect the moving speed of the sowing motor.

2. The seeding motor according to claim 1, wherein The motor body is a DC servo motor.

3. The seeding motor according to claim 1, characterized in that, The reducer is a gear reducer or a planetary reducer.

4. The seeding motor according to claim 1, wherein, The reducer is detachably connected to the sowing motor.

5. The seeding motor according to claim 4, wherein The end edge of the reducer is provided with a plurality of through-going mounting holes, the motor body is provided with a threaded hole at one end facing the reducer, and the reducer further comprises a plurality of screw rods, which pass through the mounting holes and are threadedly connected to the threaded holes, so that the reducer is mounted to one end of the motor body.

6. The seeding motor according to claim 4, wherein The rotating shaft of the motor body connected to the reducer is a special-shaped rotating shaft. The reducer is provided with a connecting shaft at one end close to the motor body. The end of the connecting shaft is recessed with a plug-in groove, and the cross-sectional shape of the plug-in groove is consistent with the shape of the special-shaped rotating shaft.

7. The seeding motor according to claim 1, characterized in that, The driver comprises: case; A control unit, the control unit comprising a power semiconductor device and a control circuit, the control unit is used to detect and control the motor, the rotation speed sensor and the speed sensor are arranged on the control circuit; Heat dissipation module.

8. The seeding motor according to claim 7, characterized in that, The rotating shaft of the motor body extends into the shell, and the rotation speed sensor is a magnetoelectric rotation speed sensor.

9. The seeding motor according to claim 8, wherein, The heat dissipation module comprises a heat dissipation fan and a heat sink. The heat dissipation fan is located in the housing and on a side of the control unit away from the motor body. The heat sink is arranged on the control circuit.

10. A seeder, characterized in that, The seed drill comprises a seed drill motor as claimed in any one of claims 1 to 9 and a remote controller, and the remote controller is connected to the control unit by signal.

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