Carrot seed harvesting equipment

Abstract

The utility model relates to the technical field of carrot harvesting equipment, in particular to carrot seed harvesting equipment which comprises a machine frame, two sets of auxiliary wheels used for walking are arranged at the bottom of the machine frame from front to back, and a feeding assembly and a threshing assembly are sequentially arranged in the machine frame from front to back. A screening assembly is arranged below the threshing assembly and located in the rack. According to the carrot seed harvesting equipment, carrot stalks are conveyed to the threshing assembly through the feeding assembly, a rotating shaft of the threshing assembly rotates and swings a beating rod to beat the carrot stalks to complete threshing, and after threshing, carrot seeds and mixed broken skin and chippings fall onto a second sieve plate through sieve holes of a first sieve plate; the carrot seeds are threshed, the stalks of the threshed carrot seeds fall off from the rear end of the extension plate, the second sieve plate can screen out broken skins and chippings mixed in the carrot seeds, then the carrot seeds subjected to impurity removal are discharged through the discharging pipe body, the problem that existing equipment lacks an impurity removal function is solved, and threshing and two-stage impurity removal integrated operation is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of carrot harvesting equipment, specifically a carrot seed harvesting device. Background Technology

[0002] Carrots are taproot plants with a well-developed, fleshy, conical taproot, which is the main edible part. However, for carrots intended for seed production, the seeds are ultimately harvested. The carrot fruit is a schizocarp, splitting into two oblong mericarps when mature, each with bristles along its ridges and containing the seeds. In autumn, after the carrot seeds mature, the above-ground stems need to be cut off, and the cut stems are then threshed using specialized equipment.

[0003] A search revealed that CN219577854U discloses a threshing machine, comprising: a frame, a threshing drum, a grain collecting mechanism, a grain collection and discharge bin, and a grain lifting cylinder. The grain lifting cylinder is located at the side end of the frame and is inclined upward along the frame. The grain lifting cylinder includes a tube and a spiral lifting shaft disposed within the tube. The spiral lifting shaft includes a rod body and spiral lifting blades wound around the rod body. The end of the spiral lifting shaft is driven to rotate by a transmission device, which is connected to a drive shaft in the threshing machine. A grain discharge pipe is provided at the upper end of the grain lifting cylinder. The transmission device includes a transmission steel wire and a protective sleeve sleeved on the transmission steel wire. One end of the transmission steel wire is connected to the spiral lifting shaft, and the other end is connected to any drive shaft of the threshing machine.

[0004] However, the above-mentioned threshing machine still has the following defects in use: it lacks a corresponding impurity removal device, and further impurity removal of the threshed crop seeds is required, which is time-consuming and labor-intensive. Utility Model Content

[0005] This invention provides a carrot seed harvesting device to solve the problem in the background art where threshing machines lack corresponding impurity removal devices, requiring subsequent impurity removal of crop seeds after threshing, which is time-consuming and labor-intensive.

[0006] To address the existing problems, this utility model provides a carrot seed harvesting device, including a frame. The bottom of the frame is provided with two sets of auxiliary wheels for walking from front to back. Inside the frame, a feeding component and a threshing component are arranged sequentially from front to back. Below the threshing component and inside the frame, a screening component is arranged.

[0007] The feeding assembly includes two vertically arranged conveyor belts inside the frame. The two ends of the conveyor belts are sleeved on rollers rotatably connected inside the frame. One end of each of the two rollers located at the rear end of the conveyor belts is fixedly connected to a gear, and the two gears mesh with each other. The other end of the roller located below the rear end of the conveyor belts passes through the side wall of the frame and is fixedly connected to the output shaft of a gearbox. The input shaft of the gearbox is fixedly connected to the output shaft of a drive motor.

[0008] The screening assembly includes a first screen plate and a second screen plate whose side ends are fixedly connected to the inner wall of the frame. The first screen plate is located above the second screen plate. An extension plate is fixedly connected to the end of the first screen plate away from the feeding assembly, and a discharge component is fixedly connected to the end of the second screen plate away from the feeding assembly.

[0009] Furthermore, the threshing assembly includes a horizontally arranged shaft with both ends rotatably connected within the frame. A fixing rod is fixedly mounted on one end of the upper surface of the shaft, and a striking rod is hinged to the other end of the fixing rod. A pulley is fixedly connected to one end of the shaft through the side wall of the frame, and the pulley is connected via belt drive.

[0010] Furthermore, a drive pulley is fixedly connected to one side of one of the upper gears, and the drive pulley is connected to the foremost pulley via a transmission belt.

[0011] Furthermore, the discharge component includes a discharge pipe body, the discharge pipe body has a feed inlet on the side near the second screen plate, the lower end of the feed inlet is flush with the upper surface of the second screen plate, and one end of the discharge pipe body penetrates the side wall of the frame and has a discharge outlet.

[0012] Furthermore, the length of the lower conveyor belt is greater than the length of the upper conveyor belt.

[0013] Furthermore, the diameter of the sieve holes in the first sieve plate is larger than the diameter of the sieve holes in the second sieve plate.

[0014] Furthermore, the first sieve plate and the second sieve plate are inclined relative to the horizontal plane.

[0015] Furthermore, a top cover (8) is provided at the upper end of the frame (1).

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This carrot seed harvesting equipment comprises a screening component, a feeding component, and a threshing component. During operation, the feeding component conveys carrot stalks to the threshing component. The rotating shaft of the threshing component swings a striking rod hinged to a fixed rod, continuously striking the stalks on the first screen plate. The threshed seeds and mixed debris fall through the screen holes of the first screen plate to the second screen plate. The threshed stalks slide backward along the inclined first screen plate and are discharged from the equipment via an extension plate. The seeds and debris move backward on the inclined second screen plate, while debris smaller than the seed size falls through the screen holes to the bottom of the frame. The purified carrot seeds enter the discharge pipe through the feed inlet and are finally discharged from the outlet. This carrot harvesting equipment can perform two impurity removal processes on the threshed carrot seeds, overcoming the problem of existing equipment that can only perform threshing and lacks impurity removal functionality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model after removing one side of the frame;

[0020] Figure 3 This is a schematic diagram of the internal structure of the frame of this utility model. Figure 1 ;

[0021] Figure 4 This utility model Figure 3 A magnified structural diagram at point A;

[0022] Figure 5 This is a schematic diagram of the internal structure of the frame of this utility model. Figure 2 ;

[0023] Figure 6 This is a schematic diagram of the connection structure between the second screen plate and the discharge component;

[0024] In the diagram: 1. Frame; 2. Auxiliary wheel; 3. Feeding assembly; 301. Conveyor belt; 302. Rotary roller; 303. Gear; 304. Gearbox; 305. Drive motor; 4. Threshing assembly; 401. Rotary shaft; 402. Fixed rod; 403. Beating rod; 404. Pulley; 405. Belt; 5. Screening assembly; 501. First screen plate; 502. Second screen plate; 503. Extension plate; 504. Discharge component; 5041. Discharge pipe; 5042. Feed inlet; 5043. Discharge outlet; 6. Drive pulley; 7. Transmission belt; 8. Top cover. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 A carrot seed harvesting device includes a frame 1. Two sets of auxiliary wheels 2 for movement are arranged from front to back at the bottom of the frame 1. Inside the frame 1, a feeding assembly 3 and a threshing assembly 4 are arranged sequentially from front to back. Below the threshing assembly 4 and located inside the frame 1, a screening assembly 5 is arranged. The feeding assembly 3 includes two vertically arranged conveyor belts 301 inside the frame 1. Both ends of the conveyor belts 301 are sleeved on rotating rollers 302 rotatably connected inside the frame 1. Gears 303 are fixedly connected to one end of each of the two rotating rollers 302 located at the rear end of the conveyor belts 301. The two gears 303 are... The other end of the rotating roller 302 located below the rear end of the conveyor belt 301 passes through the side wall of the frame 1 and is fixedly connected to the output shaft of the gearbox 304. The input shaft of the gearbox 304 is fixedly connected to the output shaft of the drive motor 305. The screening assembly 5 includes a first screen plate 501 and a second screen plate 502 whose side ends are fixedly connected to the inner wall of the frame 1. The first screen plate 501 is located above the second screen plate 502. An extension plate 503 is fixedly connected to the end of the first screen plate 501 away from the feeding assembly 3. A discharge component 504 is fixedly connected to the end of the second screen plate 502 away from the feeding assembly 3.

[0027] The threshing assembly 4 includes a horizontally arranged shaft 401 rotatably connected to the frame 1 at both ends. One end of a fixing rod 402 is fixedly arranged on the upper surface of the shaft 401, and a striking rod 403 is hinged to the other end of the fixing rod 402. One end of the shaft 401 passes through the side wall of the frame 1 and is fixedly connected to a pulley 404, which is driven by a belt 405.

[0028] Among them, a drive pulley 6 is fixedly connected to one side of a gear 303 located at the top, and the drive pulley 6 is connected to the foremost pulley 404 via a transmission belt 7.

[0029] The discharge component 504 includes a discharge pipe body 5041. The discharge pipe body 5041 has a feed inlet 5042 on its side near the second screen plate 502. The lower end of the feed inlet 5042 is flush with the upper surface of the second screen plate 502. One end of the discharge pipe body 5041 passes through the side wall of the frame 1 and has a discharge outlet 5043.

[0030] The length of the lower conveyor belt 301 is greater than the length of the upper conveyor belt 301.

[0031] It should be noted that the rear ends of the upper conveyor belt 301 and the lower conveyor belt 301 are aligned, while the lower conveyor belt 301 is longer than the upper conveyor belt 301. This design causes the front end of the lower conveyor belt 301 to extend forward horizontally, forming a material-bearing platform. During operation, the operator only needs to place the carrot stalks on this extended platform, and the movement of the lower conveyor belt 301 automatically conveys the stalks backward and winds them into the gap between the two belts. Additionally, this design has the advantage of avoiding the risk of operators' hands being pinched when placing carrot stalks onto the conveyor belt 301.

[0032] The diameter of the sieve holes in the first sieve plate 501 is larger than that in the second sieve plate 502.

[0033] The first sieve plate 501 and the second sieve plate 502 are inclined relative to the horizontal plane.

[0034] The upper part of the frame 1 is provided with a top cover 8.

[0035] Working principle: First, start the drive motor 305. The drive motor 305 drives the roller 302 located below the rear end of the conveyor belt 301 to rotate through the gearbox 304. The roller 302 drives the meshing gear 303 through the gear 303 at one end, so that the roller 302 located above the rear end of the conveyor belt 301 rotates synchronously in opposite directions, thereby driving the two conveyor belts 301 to rotate in opposite directions. The carrot stalk is placed at the front end of the lower conveyor belt 301. The stalk is rolled between the two conveyor belts 301 and transported backward. Finally, it falls from the rear end of the conveyor belt 301 onto the first screen plate 501. Meanwhile, the gear 303 located above drives the drive pulley 6 to rotate. Furthermore, the pulley 6 drives the pulley 404 at the front of the threshing assembly 4 through the transmission belt 7. The pulley 404 drives the rotating shaft 401 fixedly connected to it to rotate, and at the same time, it drives another pulley 404 and another rotating shaft 401 to rotate through the belt 405. Then, the fixed rod 402 on the rotating shaft 401 drives the hinged beating rod 403 to unfold under the action of centrifugal force, continuously beating the stems on the first screen plate 501. The threshed carrot seeds and mixed debris fall through the screen holes of the first screen plate 501 to the second screen plate 502. The threshed stems slide backward along the inclined first screen plate 501 and are discharged from the equipment through the extension plate 503. The seeds and debris move backward on the inclined second screen plate 502. The debris smaller than the seed particle size falls into the bottom of the frame 1 through the screen holes. The seeds after impurity removal enter the discharge pipe 5041 through the feed port 5042 and are finally discharged from the discharge port 5043.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A carrot seed harvesting device, comprising a frame (1), wherein two sets of auxiliary wheels (2) for walking are arranged from front to back at the bottom of the frame (1), and a feeding assembly (3) and a threshing assembly (4) are arranged sequentially from front to back inside the frame (1), characterized in that: A screening component (5) is provided below the threshing component (4) and inside the frame (1); The feeding assembly (3) includes two vertically arranged conveyor belts (301) inside the frame (1). The two ends of the conveyor belts (301) are sleeved on the rotating rollers (302) rotatably connected inside the frame (1). One end of each of the two rotating rollers (302) located at the rear end of the conveyor belts (301) is fixedly connected to a gear (303), and the two gears (303) mesh with each other. The other end of the rotating roller (302) located below the rear end of the conveyor belts (301) passes through the side wall of the frame (1) and is fixedly connected to the output shaft of the gearbox (304). The input shaft of the gearbox (304) is fixedly connected to the output shaft of the drive motor (305). The screening assembly (5) includes a first screen plate (501) and a second screen plate (502) whose side ends are fixedly connected to the inner wall of the frame (1). The first screen plate (501) is located above the second screen plate (502). An extension plate (503) is fixedly connected to one end of the first screen plate (501) away from the feeding assembly (3), and a discharge component (504) is fixedly connected to one end of the second screen plate (502) away from the feeding assembly (3).

2. The carrot seed harvesting device according to claim 1, characterized in that: The threshing assembly (4) includes a horizontally arranged shaft (401) rotatably connected at both ends within the frame (1). One end of a fixing rod (402) is fixedly arranged on the upper surface of the shaft (401), and a striking rod (403) is hinged to the other end of the fixing rod (402). One end of the shaft (401) is fixedly connected to a pulley (404) through the side wall of the frame (1), and the pulley (404) is driven by a belt (405).

3. The carrot seed harvesting equipment according to claim 2, characterized in that: A drive pulley (6) is fixedly connected to one side of a gear (303) located above, and the drive pulley (6) is connected to the foremost pulley (404) via a transmission belt (7).

4. The carrot seed harvesting device according to claim 1, characterized in that: The discharge component (504) includes a discharge pipe body (5041), and the discharge pipe body (5041) has a feed inlet (5042) on the side near the second screen plate (502). The lower end of the feed inlet (5042) is flush with the upper surface of the second screen plate (502). One end of the discharge pipe body (5041) passes through the side wall of the frame (1) and has a discharge outlet (5043).

5. The carrot seed harvesting device according to claim 1, characterized in that: The length of the lower conveyor belt (301) is greater than the length of the upper conveyor belt (301).

6. The carrot seed harvesting device according to claim 1, characterized in that: The diameter of the sieve holes of the first sieve plate (501) is larger than the diameter of the sieve holes of the second sieve plate (502).

7. The carrot seed harvesting device according to claim 1, characterized in that: The first sieve plate (501) and the second sieve plate (502) are inclined relative to the horizontal plane.

8. The carrot seed harvesting device according to claim 1, characterized in that: The upper end of the frame (1) is provided with a top cover (8).

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