CN114600596B - Double-shaft differential precision seeder - Google Patents

Abstract

The invention discloses a two-axis differential speed precision seeder, which comprises a seed box, a finger clip chamber and a seeding chamber connected in sequence. The inner wall of the seeding chamber is provided with a buffer pad and a photoelectric sensor installation hole arranged adjacently. There is an ultrasonic sensor, and a photoelectric sensor is installed in the photoelectric sensor installation hole; a finger clip disc and a finger clip drive shaft are arranged in the finger clip chamber, one end of the finger clip drive shaft is connected with the finger clip disc, and the other end of the finger clip drive shaft One end goes out of the sowing chamber and is provided with a connecting gear. The sowing chamber is provided with a sowing drive shaft, a large sowing wheel, a small sowing wheel and a conveyor belt wheel. Outside the drive shaft, one end of the sowing drive shaft is connected to the large sowing wheel, and the other end of the sowing drive shaft passes through the sowing cavity and is provided with a transmission wheel. The present invention adopts the dual-axis differential precision seeder with the above structure, which effectively avoids the phenomenon of missing seeding, and ensures the seeding effect and seeding efficiency.

Description

Two-axis differential precision seeder

technical field

The invention relates to the technical field of seeders, in particular to a two-axis differential precision seeder.

Background technique

With the development of economy and society and the advancement of science and technology, agriculture has gradually realized mechanized production, which greatly reduces the labor intensity of farmers when farming. The seeder is a common farming equipment in the agricultural production process. The seeder is an important part of the seeder. Due to the inconsistency of the seed size of the seeder in the prior art, there may be an empty clip when the finger clip disc is working, resulting in the seeding Sometimes it is easy to cause missed sowing or even monopoly, which causes land waste and affects the sowing efficiency to a large extent.

Contents of the invention

The object of the present invention is to provide a two-axis differential precision seeder, which effectively avoids the phenomenon of missed seeding, and ensures the seeding effect and seeding efficiency.

In order to achieve the above object, the present invention provides a two-axis differential precision seeder, which includes a seed box, a finger clip cavity and a seeding cavity connected in sequence, the top of the seed box is provided with a feeding port, and the seed box The bottom of the bottom is in communication with the finger clip chamber, a through hole is provided between the finger clip chamber and the seeding chamber, and the inner wall of the seeding chamber is provided with a buffer pad and a photoelectric sensor installation hole adjacently arranged, so The buffer pad is arranged correspondingly to the through hole, the buffer pad is provided with an ultrasonic sensor, the photoelectric sensor installation hole is provided with a photoelectric sensor, the bottom of the sowing cavity is provided with a discharge port, and the side of the sowing cavity is There is a vertical mounting plate on the wall;

The finger clip chamber is provided with a finger clip disc and a finger clip drive shaft, one end of the finger clip drive shaft is connected to the finger clip disc, and the other end of the finger clip drive shaft passes through the sowing cavity And be provided with connecting gear, described sowing cavity is provided with sowing driving shaft, big sowing wheel, small sowing wheel and the conveyer pulley that is sheathed between described big sowing wheel and described small sowing wheel, and described sowing driving shaft Set coaxially with the finger clip drive shaft and the sowing drive shaft is arranged outside the finger clip drive shaft, one end of the sowing drive shaft is connected to the large sowing wheel, and the other end of the sowing drive shaft It passes through the seeding cavity and is provided with a transmission wheel.

Preferably, the finger disc includes a housing, the outer edge of the housing is provided with evenly distributed limiting slots, the housing is provided with a cam and a finger lever, and the cam and the finger The inner wall of the clamping cavity is fixedly connected, the cam is located in the middle of the housing, the end surface of the cam is provided with a groove along its circumference, and the two ends of the groove are connected to the cam by a smooth slope. The end faces are connected, the finger clamp rods are fixedly connected to the housing, the finger clamp rods are arranged in one-to-one correspondence with the limit slots, two adjacent finger clamp rods are connected by springs, and the One end of the finger lever is provided with a seed clamping piece protruding from the housing, and the other end of the finger lever is provided with a clamping piece overlapping the end face of the cam.

Preferably, the outer ring side wall of the transmission pulley is provided with uniformly distributed sowing teeth, the inner ring side wall of the transmission pulley is provided with uniformly distributed transmission holes, the large seeding wheel and the small seeding wheel Protruding posts corresponding to the transmission holes are provided on the top.

Therefore, the present invention adopts the dual-axis differential precision seeder with the above structure, which effectively avoids the phenomenon of missed seeding, and ensures the seeding effect and seeding efficiency.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the schematic diagram of the embodiment of biaxial differential precision seeder of the present invention;

Fig. 2 is the schematic diagram of the embodiment of the finger clip disc in the biaxial differential precision seeder of the present invention;

Fig. 3 is the schematic diagram of the embodiment of cam in the biaxial differential precision seeder of the present invention;

Fig. 4 is a schematic diagram of an embodiment of the sowing cavity in the dual-axis differential precision seeder of the present invention.

reference sign

1. Seed box; 2. Finger clip cavity; 3. Seeding cavity; 4. Mounting plate; 5. Cushion pad; 6. Photoelectric sensor installation hole; 7. Finger clip disc; , limit slot; 74, groove; 75, finger clamp rod; 76, spring; 8, finger clamp drive shaft; 9, connecting gear; 10, sowing wheel drive shaft; 11, large sowing wheel; 12, small sowing 13, conveyor pulley; 14, seeding teeth; 15, transmission hole; 16, controller; 17, drive wheel.

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in the figure, a two-axis differential speed precision seeder includes a seed box 1, a finger clip chamber 2 and a seeding chamber 3 connected in sequence. The top of the seed box 1 is provided with a feeding port, and the bottom of the seed box 1 is connected to the The finger clip chamber 2 is connected, and a through hole is provided between the finger clip chamber 2 and the sowing chamber 3. The bottom of the sowing chamber 3 is provided with a discharge port, and the side wall of the sowing chamber 3 is provided with a vertically arranged mounting plate 4. The mounting plate 4 is convenient for the seeder to be installed on the sowing vehicle. The inner wall of the sowing chamber 3 is provided with a buffer pad 5 and a photoelectric sensor installation hole 6 adjacently arranged, and the buffer pad 5 is correspondingly arranged with the through hole, and the buffer pad 5 can play a buffering effect on the seeds to prevent the seeds from colliding with the inner wall of the sowing chamber 3. Damages seeds on collision. The buffer pad 5 is provided with an ultrasonic sensor, and the ultrasonic sensor is used to detect whether a seed passes through the through hole. A photoelectric sensor is arranged in the photoelectric sensor mounting hole 6, and the photoelectric sensor is used to detect whether the seeding teeth 14 pass through.

The finger clamp disc 7 and the finger clamp drive shaft 8 are arranged in the finger clamp chamber, one end of the finger clamp drive shaft 8 is connected with the finger clamp disc 7, and the other end of the finger clamp drive shaft 8 passes through the sowing cavity and is provided with a connecting gear 9. The connecting gear 9 is used to connect with the finger clip power device such as a motor to drive the finger clip drive shaft 8 to rotate. The finger clamp disc 7 includes a housing 71 , and the outer edge of the housing 71 is provided with evenly distributed limiting slots 73 , and the housing 71 is provided with a cam 72 and a finger clamp rod 75 . The cam 72 is fixedly connected with the inner wall of the finger clip chamber, the cam 72 is located in the middle of the housing 71, the end surface of the cam 72 is provided with a groove 74 arranged along its circumferential direction, and the two ends of the groove 74 are connected to the surface of the cam 72 through a smooth slope. End connection. The finger clamp rod 75 is fixedly connected with the housing 71, and the finger clamp rod 75 is set in one-to-one correspondence with the limit slot 73. The adjacent two finger clamp rods 75 are connected by a spring 76, and one end of the finger clamp rod 75 is provided with an extension. The seed-clamping sheet exiting the casing 71 means that the other end of the clamping rod 75 is provided with a clamping sheet overlapping the end surface of the cam 72 . When the clamping piece rotates into the groove 74, the seed clamping piece is tilted up. When the clamping piece is rotated outside the groove 74, the seed clamping piece is closed to realize the clamping of the seed. When the seed clamping piece moves to the through hole with the seed At this time, under the action of the spring 76, the seeds are ejected into the sowing chamber 3.

The sowing cavity is provided with a sowing drive shaft, a large sowing wheel 11, a small sowing wheel 12, and a conveyor pulley 13 that is sleeved between the large sowing wheel 11 and the small sowing wheel 12. The outer ring side wall of the conveyor pulley 13 is provided with a uniform Distributed sowing teeth 14, uniformly distributed transmission holes 15 are arranged on the inner ring side wall of the transmission pulley 13, and convex posts corresponding to the transmission holes 15 are provided on the large sowing wheel 11 and the small sowing wheel 12. The sowing drive shaft and the finger clip drive shaft 8 are coaxially arranged and the sowing drive shaft is arranged on the outside of the finger clip drive shaft 8. One end of the sowing drive shaft is connected with the large sowing wheel 11, and the other end of the sowing drive shaft passes through the sowing cavity and is set Drive wheel 17 is arranged, and drive wheel 17 is used for being connected with sowing power device as motor, and then drives sowing drive shaft and rotates.

When in use, the ultrasonic sensor, the photoelectric sensor and the finger clip power device are connected with the controller 16, the seed box 1 is filled first, and then the finger clip power device and the sowing power device are turned on, and the finger clip power device drives the finger clip driving shaft 8 to rotate and then drives The finger clamp bar 75 on the finger clamp disk 7 rotates, and the sowing power unit drives the sowing drive shaft to rotate, and the sowing drive shaft drives the big sowing wheel 11 to rotate, and the big sowing wheel 11 drives the conveyor belt wheel 13 to rotate in circles. Seeds enter the finger clamp cavity from the seed box, and the finger clamp disc 7 in the finger clamp cavity 2 clamps the seeds. When the finger clamp rod 75 on the finger clamp disc 7 clamps the seeds and reaches the through hole, the seeds are inserted The seeding chamber 3, the seeding teeth 14 in the seeding chamber 3 send the seeds to the discharge port to complete the sowing action. When the photoelectric sensor detects the passing signal of the sowing tooth 14 and the ultrasonic sensor detects the passing signal of the seed, the controller 16 maintains the operating speed of the finger clip power device constant so that the finger clip drive shaft 8 rotates normally. When the passing signal of the seeding tooth 14 and the ultrasonic sensor does not detect the passing signal of the seed, it means that the finger grip lever 75 is empty, and the controller 16 controls the finger grip power device to increase the operating speed and then promotes the finger grip drive shaft 8 to accelerate rotation, so that the following The finger clip lever 75 quickly rotates to the through hole to re-sow the seeds. When the ultrasonic sensor detects the passing signal of the seeds, the controller 16 controls the finger clip drive motor to return to the original speed, effectively avoiding the missed seeding of the seeds. The seeding effect and seeding efficiency are guaranteed.

Therefore, the present invention adopts the dual-axis differential precision seeder with the above structure, which effectively avoids the phenomenon of missed seeding, and ensures the seeding effect and seeding efficiency.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it still Modifications or equivalent replacements can be made to the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims (1)

1. The utility model provides an accurate disseminator of biax differential formula which characterized in that: the device comprises a seed box (1), a finger clamping cavity (2) and a seeding cavity (3) which are sequentially connected, wherein a feeding hole is formed in the top of the seed box (1), the bottom of the seed box (1) is communicated with the finger clamping cavity (2), a through hole is formed between the finger clamping cavity (2) and the seeding cavity (3), a cushion pad (5) and a photoelectric sensor mounting hole (6) which are adjacently arranged are arranged on the inner wall of the seeding cavity (3), the cushion pad (5) is arranged corresponding to the through hole, an ultrasonic sensor is arranged on the cushion pad (5), a photoelectric sensor is arranged in the photoelectric sensor mounting hole (6), a discharge hole is formed in the bottom of the seeding cavity (3), and a vertically arranged mounting plate (4) is arranged on the side wall of the seeding cavity (3);

a finger clamp disc (7) and a finger clamp driving shaft (8) are arranged in the finger clamp cavity (2), one end of the finger clamp driving shaft (8) is connected with the finger clamp disc (7), the other end of the finger clamp driving shaft (8) penetrates out of the seeding cavity (3) and is provided with a connecting gear (9), the gear (9) and a finger clamp power device, a seeding driving shaft (10), a large seeding wheel (11), a small seeding wheel (12) and a conveying belt wheel (13) sleeved between the large seeding wheel (11) and the small seeding wheel (12) are arranged in the seeding cavity (3), the seeding driving shaft (10) and the finger clamp driving shaft (8) are coaxially arranged, the seeding driving shaft (10) is arranged outside the finger clamp driving shaft (8), one end of the seeding driving shaft (10) is connected with the large seeding wheel (11), the other end of the driving shaft (10) penetrates out of the seeding cavity (3) and is provided with a driving wheel (17), and the driving wheel (17) is connected with the seeding power device;

the finger-clamping disc (7) comprises a shell (71), wherein limiting slotted holes (73) which are uniformly distributed are formed in the outer edge of the shell (71), a cam (72) and finger-clamping rods (75) are arranged in the shell (71), the cam (72) is fixedly connected with the inner wall of the finger-clamping cavity (2), the cam (72) is located in the middle of the shell (71), grooves (74) which are arranged along the circumferential direction of the cam (72) are formed in the end face of the cam (72), two ends of each groove (74) are connected with the end face of the cam (72) through smooth inclined planes, the finger-clamping rods (75) are fixedly connected with the shell (71), the finger-clamping rods (75) and the limiting slotted holes (73) are arranged in a one-to-one correspondence mode, two adjacent finger-clamping rods (75) are connected through springs (76), a seed clamping sheet which extends out of the shell (71) is arranged at one end of each finger-clamping rod (75), and a clamping sheet which is lapped on the end face of the cam (72) is arranged at the other end of each finger-clamping rod (75);

seeding teeth (14) are uniformly distributed on the side wall of the outer ring of the conveying belt wheel (13), conveying holes (15) are uniformly distributed on the side wall of the inner ring of the conveying belt wheel (13), and convex columns which correspond to the conveying holes (15) are arranged on the large seeding wheel (11) and the small seeding wheel (12);

when the device is used, the ultrasonic sensor, the photoelectric sensor and the finger clamp power device are connected with the controller (16), the seed box (1) is filled, then the finger clamp power device and the seeding power device are started, the finger clamp power device drives the finger clamp driving shaft (8) to rotate so as to drive the finger clamp rod (75) on the finger clamp disc (7) to rotate, the seeding power device drives the seeding driving shaft (10) to rotate, the seeding driving shaft (10) drives the big seeding wheel (11) to rotate, and the big seeding wheel (11) drives the conveying belt wheel (13) to rotate circularly; seeds enter the finger clamping cavity from the seed box, the finger clamping disc (7) in the finger clamping cavity (2) clamps the seeds, when the finger clamping rod (75) on the finger clamping disc (7) clamps the seeds to reach the through hole, the seeds are popped into the sowing cavity (3), and the sowing teeth (14) in the sowing cavity (3) send the seeds to a discharge hole to complete sowing;

when the photoelectric sensor detects a passing signal of the sowing tooth (14) and the ultrasonic sensor detects a passing signal of seeds, the controller (16) maintains the operation rotating speed of the finger clamp power device unchanged so as to enable the finger clamp driving shaft (8) to normally rotate, when the photoelectric sensor detects the passing signal of the sowing tooth (14) and the ultrasonic sensor does not detect the passing signal of the seeds, the controller (16) indicates that the finger clamp rod (75) is empty clamped, controls the finger clamp power device to increase the operation rotating speed so as to enable the finger clamp driving shaft (8) to rotate in an accelerated mode, enables the following finger clamp rod (75) to rapidly rotate to a through hole to perform reseeding of the seeds, and when the ultrasonic sensor detects the passing signal of the seeds, the controller (16) controls the finger clamp driving motor to return to the original rotating speed.

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