Garlic harvester

Abstract

The utility model discloses a garlic harvester which mainly comprises a tractor connecting frame, a clutch wheel control device, an automatic chain tensioning device, a main machine frame, a thrust supporting arm, an operation shovel device, a pressing wheel device and a turning device. The main machine frame further comprises five soil-screening garlic conveying rotating frames, each rotating frame is provided with a gear, a driven gear is additionally arranged between every two gears, and therefore the directions of the five rotating frames can be consistent after the rotating frames rotate. The problem that garlic and soil are difficult to fully separate is solved, the depth of the operation shovel is accurate and adjustable, garlic heads are not prone to being damaged or falling, the operation direction is easy to control, and the safety of crops between garlic rows is guaranteed; through the arrangement of the clutch stay wire, the clutch disc and the corresponding linkage mechanism, a worker can conveniently and directly cut in power in a cab of the tractor; the guide wheel supporting rods are further protected through thrust ball bearings arranged on the first guide wheel supporting rod and the second guide wheel supporting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of garlic harvesting machinery and equipment, and in particular to a garlic harvester. Background Art

[0002] Traditional garlic harvesting has always been done manually, such as digging, cleaning, cutting garlic seedlings, and cutting garlic roots, which is labor-intensive and inefficient. In order to reduce the labor burden, people have invented a variety of garlic harvesting machines, but most of them only have a single function, and the traditional pulley is connected to the tractor, which provides the rotational power. The existing machines do not have a clutch wheel or the clutch wheel control method is cumbersome and has a high risk factor. In addition, some garlic harvesters do not have the function of screening the soil after digging out the garlic, and many garlics will be crushed by the tractor's walking wheels after being dug out. How to effectively solve the above problems is an important direction for the development of garlic harvesters at present. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the prior art and proposes a garlic harvester, which includes a frame body, wherein a power transmission mechanism is arranged on a side of the frame body close to the tractor.

[0004] The power transmission mechanism comprises a power transmission frame fixedly mounted on the tractor; the frame body is rotatably mounted on the front end of the power transmission frame; a No. 1 power transmission shaft is transversely arranged on the power transmission frame, a pulley for power transmission with the tractor is rotatably sleeved on the No. 1 power transmission shaft, a clutch device is arranged at one end of the power transmission shaft, and a No. 1 transmission gear is arranged at the other end of the power transmission shaft;

[0005] The upper part of the frame body is provided with multiple groups of bearings, a No. 2 power transmission shaft is installed on the bearings, a No. 1 driven gear, a No. 2 transmission gear, and a No. 3 transmission gear are fixedly installed on the No. 2 power transmission shaft; a No. 1 transmission chain is connected between the No. 1 transmission gear and the No. 1 driven gear, and power is transmitted between the No. 1 transmission gear and the No. 1 driven gear through the No. 1 transmission chain;

[0006] The bottom of the frame body is rotatably provided with an active soil screening shaft and a plurality of driven soil screening shafts, the end of the active soil screening shaft is provided with a No. 2 driven gear, and the No. 2 driven gear transmits power to the driven soil screening shaft through a gear box; a No. 2 transmission chain is provided between the No. 2 driven gear and the No. 2 transmission gear, and power is transmitted between the No. 2 driven gear and the No. 2 transmission gear through the No. 2 transmission chain;

[0007] A rotating shaft mounting seat is provided on the upper part of the frame body, and a rotating shaft is rotatably mounted on the rotating shaft mounting seat, and a No. 3 driven gear is provided at one end of the rotating shaft close to the No. 3 transmission gear, and a No. 3 transmission chain is provided between the No. 3 transmission gear and the No. 3 driven gear, and power is transmitted between the No. 3 transmission gear and the No. 3 driven gear through the No. 3 transmission chain; an eccentric wheel is sleeved on the middle part of the rotating shaft; a garlic digging rack is rotatably mounted on the front side of the frame body, and an eccentric shaft plate mounting seat is provided on the upper side of the garlic digging rack close to the frame body, and an eccentric shaft plate is rotatably mounted on the eccentric shaft plate mounting seat, and an eccentric shaft plate is provided on the eccentric shaft plate mounting seat, and an eccentric shaft sleeve is provided at one end of the eccentric shaft plate away from the garlic digging rack, and the eccentric shaft sleeve and the eccentric wheel are movably mounted together;

[0008] A guide wheel mounting frame is also installed at the front end of the frame body, and two steering seats are arranged at one end of the guide wheel mounting frame away from the frame body. A No. 1 guide wheel support rod and a No. 2 guide wheel support rod are respectively rotatably installed on the two steering seats, and guide wheels are rotatably installed at the bottoms of the No. 1 guide wheel support rod and the No. 2 guide wheel support rod.

[0009] Preferably, the power transmission frame is also provided with a cylinder for facilitating lifting of the frame body, and one end of the cylinder away from the power transmission frame is rotatably connected to a cylinder mounting seat provided on the upper side of the front end of the frame body.

[0010] Preferably, a tensioning mechanism for tightening the No. 1 transmission chain is also provided in the middle portion of the No. 1 transmission chain; the tensioning mechanism comprises a tensioning frame arranged on the power transmission frame, a No. 1 pulley and a No. 2 pulley are arranged on the tensioning frame, and sliding mounting seats are arranged on both sides of the No. 1 pulley and the No. 2 pulley, and the No. 1 pulley and the No. 2 pulley are slidably mounted on the tensioning frame through the sliding mounting seats, a tensioning spring is arranged on the sliding mounting seat, and one end of the tensioning spring away from the sliding mounting seat is fixed to the bottom of the tensioning frame.

[0011] Preferably, a plurality of steel bars are welded to the circumferential side of the soil screening roller, and the plurality of steel bars are arranged to form a soil screening frame, and a supporting connecting plate is provided between the soil screening frame and the soil screening roller to enhance the stability of the soil screening frame.

[0012] Preferably, a garlic guide plate is provided in the middle of the frame body, and an arc-shaped groove that cooperates with the soil screening frame is provided at the bottom of the garlic guide plate.

[0013] Preferably, a working shovel is provided at the bottom of the garlic digging rack, and the working shovel is arranged inclined forward from the garlic digging rack.

[0014] Preferably, an L-shaped adjustment plate for adjusting the direction of the guide wheel is fixedly installed on the steering seat, and a harness through hole for the guide harness to pass through for direction adjustment is opened on the L-shaped adjustment plate, and a guide harness is passed through the harness through hole, and one end of the guide harness is connected to the central control room of the tractor, and the other end is fixedly connected to the No. 1 direction adjustment connecting plate arranged on the top of the No. 1 guide wheel support rod; the guide harness is slidably covered with a cover shell on the outside, and the cover shell is located at the position of the harness through hole and fixedly connected to the L-shaped adjustment plate;

[0015] A No. 2 adjustment connecting plate is also provided on the top of the No. 2 guide wheel support rod, an adjustment connecting rod is provided between the No. 1 adjustment connecting plate and the No. 2 adjustment connecting plate, a return spring is fixedly installed on the other side of the No. 2 adjustment connecting plate, and the end of the return spring away from the No. 2 adjustment connecting plate is fixedly installed on the guide wheel mounting frame.

[0016] Preferably, the No. 1 guide wheel support rod and the No. 2 guide wheel support rod are both provided with support rod protection kits, and the support rod protection kits include fixed through holes arranged on the No. 1 guide wheel support rod and the No. 2 guide wheel support rod, and thrust ball bearing installation adjustment rings are fixedly penetrated through the fixed through holes, and the No. 1 guide wheel support rod and the No. 2 guide wheel support rod are located on the upper part of the thrust ball bearing installation adjustment ring and are sleeved with thrust ball bearings.

[0017] Preferably, the clutch device comprises a clutch mounting frame arranged at one end of the power transmission frame, a wire drawing slot is provided on a side of the clutch mounting frame away from the pulley, a clutch wire is installed in the wire drawing slot; an adjustment slot is provided on a side of the clutch mounting frame close to the pulley, a clutch adjustment frame is slidably installed on the adjustment slot;

[0018] One end of the clutch adjustment frame is connected to the clutch cable, and the other end of the clutch adjustment frame is fixedly connected to a clutch disc axially slidably mounted on the first power transmission shaft;

[0019] A clamping block is provided on the side of the clutch disc close to the pulley, and the clamping block cooperates with the clutch disc clamping groove provided on the pulley; a return spring is provided on the side of the clutch disc away from the pulley, and the other side of the return spring is abutted against a baffle provided at the end of the No. 1 power transmission shaft.

[0020] Preferably, one end of the clutch cable away from the clutch adjustment frame is arranged in the central control room of the tractor.

[0021] Compared with the existing technology, the utility model has the following beneficial effects: through the provided clutch cable, clutch plate and corresponding linkage mechanism, it is convenient for the staff to directly realize the power cut-in in the cab of the tractor, which solves the problem that the traditional power transmission (cut-in) must be pushed by the person, and also avoids the problem that when the traditional loading harvester is directly connected to the power transfer, it will cause a great threat to pedestrians when the tractor is moving;

[0022] By adding a tensioning mechanism in the middle of the No. 1 transmission chain, it is convenient to prevent the chain from being dislocated due to loosening of the transmission chain when the frame body is lifted or during operation;

[0023] The multiple soil screening frames are provided to facilitate the screening of the excavated garlic. At the same time, the garlic guide plate can be used to collect the garlic into the gap between the tractor's running wheels during harvesting to avoid being crushed by the tractor's running wheels.

[0024] The coordination of the steering seat, L-shaped adjustment plate, No. 1 steering connecting plate, No. 2 steering connecting plate and guide harness facilitates the steering of the harvester's walking wheels.

[0025] The guide wheel support rod is further protected by the thrust ball bearings arranged on the No. 1 guide wheel support rod and the No. 2 guide wheel support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a garlic harvester proposed by the utility model;

[0027] Figure 2 This is a schematic top view of the overall structure of a garlic harvester proposed by the utility model;

[0028] Figure 3 for Figure 1 A-section structure enlarged view (clutch part);

[0029] Figure 4 for Figure 1 Enlarged view of the structure of part B in the middle (tension frame part).

[0030] In the figure: frame body 1, power transmission frame 2, No. 1 power transmission shaft 3, pulley 4, No. 1 transmission gear 5, No. 2 power transmission shaft 6, No. 1 driven gear 7, No. 2 transmission gear 8, No. 3 transmission gear 9, No. 1 transmission chain 10, active soil screening shaft 11, driven soil screening shaft 12, No. 2 driven gear 13, No. 2 transmission chain 14, rotating shaft mounting seat 15, rotating shaft 16, No. 3 driven gear 17, No. 3 transmission chain 18, garlic digging frame 19, eccentric shaft plate mounting seat 20, eccentric shaft plate 21, eccentric shaft sleeve 22, guide wheel mounting frame 23, steering seat 24, No. 1 guide wheel support rod 25, No. 2 guide wheel support rod 26, No. 3 guide wheel support rod 27, No. 3 guide wheel support rod 28, No. 3 guide wheel support rod 29, No. 4 guide wheel support rod 30, No. 4 guide wheel support rod 31, No. 4 guide wheel support rod 32, No. 4 guide wheel support rod 33, No. 4 guide wheel support rod 34, No. 4 guide wheel support rod 35, No. 4 guide wheel support rod 36, No. 4 guide wheel support rod 37, No. 4 guide wheel support rod 38, No. 4 guide wheel support rod 39, No. 5 guide wheel support rod 40, No. 5 guide wheel support rod 41, No. 5 guide wheel support rod 42, No. 5 guide wheel support rod 43, No. 5 guide wheel support rod 44, No. 5 guide wheel support rod 45, No. 5 guide wheel support rod 46, No. 5 guide wheel support rod 47, No. 5 guide wheel support rod 48, No. 5 guide wheel support rod 49, No. 6 The steering wheel support rod 26, the guide wheel 27, the cylinder 28, the cylinder mounting seat 29, the tensioning frame 30, the No. 1 pulley 31, the No. 2 pulley 32, the sliding mounting seat 33, the tensioning spring 34, the garlic guide plate 35, the working shovel 37, the L-shaped adjustment plate 38, the guide harness 40, the No. 1 steering connecting plate 41, the No. 2 steering connecting plate 42, the steering connecting rod 43, the No. 1 return spring 44, the thrust ball bearing installation adjustment ring 45, the thrust ball bearing 46, the clutch mounting frame 47, the cable groove 48, the clutch cable 49, the adjustment groove 50, the clutch adjustment frame 51, the clutch plate 52, the block 53, the No. 2 return spring 54, and the baffle 55. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Referring to the drawings, this embodiment provides a garlic harvester, including a frame body 1, wherein a power transmission mechanism is provided on a side of the frame body 1 close to the tractor.

[0033] The power transmission mechanism comprises a power transmission frame 2 fixedly mounted on the tractor; the frame body 1 is rotatably mounted on the front end of the power transmission frame 2; a first power transmission shaft 3 is transversely arranged on the power transmission frame 2, a pulley 4 for power transmission with the tractor is rotatably sleeved on the first power transmission shaft 3, a clutch device is arranged at one end of the power transmission shaft 3, and a first transmission gear 5 is arranged at the other end of the power transmission shaft 3;

[0034] The upper part of the frame body 1 is provided with a plurality of bearings, on which a No. 2 power transmission shaft 6 is mounted, and a No. 1 driven gear 7, a No. 2 transmission gear 8, and a No. 3 transmission gear 9 are fixedly mounted on the No. 2 power transmission shaft 6; a No. 1 transmission chain 10 is connected between the No. 1 transmission gear 5 and the No. 1 driven gear 7, and power is transmitted between the No. 1 transmission gear 5 and the No. 1 driven gear 7 via the No. 1 transmission chain 10;

[0035] The bottom of the frame body 1 is rotatably provided with an active soil screening shaft 11 and a plurality of driven soil screening shafts 12, the end of the active soil screening shaft 11 is provided with a second driven gear 13, and the second driven gear 13 transmits power to the driven soil screening shaft 12 through a gear box; a second transmission chain 14 is provided between the second driven gear 13 and the second transmission gear 8, and power is transmitted between the second driven gear 13 and the second transmission gear 8 through the second transmission chain 14;

[0036] A rotating shaft mounting seat 15 is provided on the upper part of the frame body 1, and a rotating shaft 16 is rotatably mounted on the rotating shaft mounting seat 15, and a No. 3 driven gear 17 is provided on the end of the rotating shaft 16 close to the No. 3 transmission gear 9, and a No. 3 transmission chain 18 is provided between the No. 3 transmission gear 9 and the No. 3 driven gear 17, and power is transmitted between the No. 3 transmission gear 9 and the No. 3 driven gear 17 through the No. 3 transmission chain 18; an eccentric wheel is sleeved on the middle part of the rotating shaft; a garlic digging rack 19 is rotatably mounted on the front side of the frame body 1, and an eccentric shaft plate mounting seat 20 is provided on the upper side of the garlic digging rack 19 close to the frame body 1, and an eccentric shaft plate 21 is rotatably mounted on the eccentric shaft plate mounting seat 20, and an eccentric shaft sleeve 22 is provided on the end of the eccentric shaft plate 21 away from the garlic digging rack, and the eccentric shaft sleeve 22 is movably mounted together with the eccentric wheel;

[0037] A guide wheel mounting frame 23 is also installed at the front end of the frame body 1, and two steering seats 24 are arranged at one end of the guide wheel mounting frame 23 away from the frame body 1. A No. 1 guide wheel support rod 25 and a No. 2 guide wheel support rod 26 are rotatably installed on the two steering seats 24, and guide wheels 27 are rotatably installed at the bottom of the No. 1 guide wheel support rod 25 and the No. 2 guide wheel support rod 26.

[0038] Furthermore, the power transmission frame 2 is also provided with a cylinder 28 for lifting the frame body 1 , and one end of the cylinder 28 away from the power transmission frame 2 is rotatably connected to a cylinder mounting seat 29 provided on the upper side of the front end of the frame body 1 .

[0039] Furthermore, a tensioning mechanism for tightening the No. 1 transmission chain is also provided in the middle of the No. 1 transmission chain 10; the tensioning mechanism includes a tensioning frame 30 arranged on the power transmission frame 2, and a No. 1 pulley 31 and a No. 2 pulley 32 are arranged on the tensioning frame 30, and sliding mounting seats 33 are arranged on both sides of the No. 1 pulley 31 and the No. 2 pulley 32, and the No. 1 pulley 31 and the No. 2 pulley 32 are slidably installed on the tensioning frame 30 through the sliding mounting seat 33, and a tensioning spring 34 is arranged on the sliding mounting seat 33, and the end of the tensioning spring 34 away from the sliding mounting seat 33 is fixed to the bottom of the tensioning frame 30.

[0040] Furthermore, a plurality of steel bars are welded to the circumference of the active soil screening shaft 11 and the plurality of driven soil screening shafts 12, and the plurality of steel bars are arranged to form a soil screening frame, and a supporting connecting plate is arranged between the soil screening frame and the soil screening roller to enhance the stability of the soil screening frame.

[0041] Furthermore, a garlic guide plate 35 is provided in the middle of the frame body 1, and an arc-shaped groove 36 is provided at the bottom of the garlic guide plate 36 to cooperate with the soil screening frame.

[0042] Furthermore, a working shovel 37 is provided at the bottom of the garlic digging rack 19, and the working shovel 37 is arranged obliquely toward the front from the garlic digging rack 19.

[0043] Furthermore, an L-shaped adjustment plate 38 for adjusting the direction of the guide wheel is fixedly installed on the steering seat 24, and a harness through hole for the guide harness to be convenient for direction adjustment is opened on the L-shaped adjustment plate 38, and a guide harness 40 is passed through the harness through hole, and one end of the guide harness 40 is connected to the central control room of the tractor, and the other end is fixedly connected to the No. 1 direction adjustment connecting plate 41 arranged on the top of the No. 1 guide wheel support rod 25; the guide harness 40 is slidably covered with a cover shell, and the cover shell is located at the position of the harness through hole and is fixedly connected to the L-shaped adjustment plate 38;

[0044] A No. 2 adjustment connecting plate 42 is also provided on the top of the No. 2 guide wheel support rod 26, an adjustment connecting rod 43 is provided between the No. 1 adjustment connecting plate 41 and the No. 2 adjustment connecting plate 42, a No. 1 return spring 44 is fixedly installed on the other side of the No. 2 adjustment connecting plate 42, and the end of the No. 1 return spring 44 away from the No. 2 adjustment connecting plate 42 is fixedly installed on the guide wheel mounting frame 23.

[0045] Furthermore, the No. 1 guide wheel support rod 25 and the No. 2 guide wheel support rod 26 are both provided with support rod protection kits, and the support rod protection kits include fixed through holes provided on the No. 1 guide wheel support rod 25 and the No. 2 guide wheel support rod 26, and the thrust ball bearing installation adjustment ring 45 is fixedly passed through the fixed through holes, and the No. 1 guide wheel support rod 25 and the No. 2 guide wheel support rod 26 are located on the upper part of the thrust ball bearing installation adjustment ring 45 and are sleeved with the thrust ball bearing 46.

[0046] Further, the clutch device includes a clutch mounting frame 47 arranged at one end of the power transmission frame 2, and a wire drawing slot 48 is provided on the side of the clutch mounting frame 47 away from the pulley 4, and a clutch wire 49 is installed in the wire drawing slot 48; an adjustment slot 50 is provided on the side of the clutch mounting frame 47 close to the pulley 4, and a clutch adjustment frame 51 is slidably installed on the adjustment slot 50;

[0047] One end of the clutch adjustment frame 51 is connected to the clutch cable 49, and the other end of the clutch adjustment frame 51 is fixedly connected to the clutch disk 52 axially slidably installed on the No. 1 power transmission shaft 3; it should be noted here that a section of the circumferential side of the No. 1 power transmission shaft 3 near the clutch disk is provided with a ridge groove, which is convenient for clamping the clutch disk and ensuring that the clutch disk can only slide axially along the No. 1 power transmission shaft.

[0048] A clamping block 53 is provided on the side of the clutch disc 52 close to the pulley 4, and the clamping block 53 cooperates with the clutch disc clamping groove provided on the pulley 4; a No. 2 return spring 54 is provided on the side of the clutch disc 51 away from the pulley 4, and the other side of the No. 2 return spring 54 is abutted against a baffle 55 provided at the end of the No. 1 power transmission shaft 3.

[0049] Furthermore, one end of the clutch cable 49 away from the clutch adjustment frame 51 is arranged in the central control room of the tractor.

[0050] Working principle:

[0051] First, install the garlic harvester on the front end of the tractor, then drive the tractor to the plot to be harvested, start the cylinder to lower the frame body to an appropriate position, the pulley of the tractor is connected to the pulley of the device through a transmission belt, then adjust the clutch cable, the clutch adjustment frame pushes the clutch disc to approach the pulley under the action of the reset spring, the clamping block on the clutch disc is engaged with the clutch disc clamping groove arranged on the pulley 4, after the clutch disc is engaged with the pulley, the No. 1 power transmission shaft rotates, and the No. 1 transmission gear arranged on the No. 1 power transmission shaft rotates; the No. 1 transmission gear drives the No. 1 driven gear to rotate through the No. 1 transmission chain, and at this time, the No. 1 transmission gear drives the No. 2 power transmission shaft to rotate;

[0052] The No. 2 transmission gear fixedly arranged on the No. 2 power transmission shaft also rotates accordingly. At this time, the No. 2 transmission gear drives the active soil screening shaft to rotate through the No. 2 transmission chain. A gear box is arranged at the end of the active soil screening shaft. When the active soil screening shaft rotates, the power is transmitted to other driven soil screening shafts. Therefore, each soil screening frame arranged at the bottom of the frame body also rotates accordingly to screen the harvested garlic. At the same time, under the guidance of the garlic guide plate, the harvested garlic is transported to the middle position of the wheel to avoid being crushed by the running wheels of the tractor.

[0053] The third transmission gear fixed on the second power transmission shaft also rotates accordingly. At this time, the third transmission gear drives the rotating shaft to rotate through the third transmission chain. The eccentric wheel set in the middle of the rotating shaft rotates with the rotating shaft. At the same time, the eccentric shaft plate sleeved on the eccentric wheel reciprocates accordingly. At this time, the garlic digging frame reciprocates downward under the drive of the eccentric shaft plate, and the garlic is continuously dug out under the action of the working shovel.

[0054] When the direction of the whole machine needs to be adjusted, it is only necessary to pull the wire harness in the central control room of the tractor. The outer shell of the guide harness will drive the No. 1 steering connecting plate to rotate under the fixing action of the L-shaped adjustment plate. The No. 1 steering connecting plate will drive the No. 1 guide wheel support rod to rotate, and then drive the guide wheel to rotate. At this time, the No. 1 steering connecting plate will also drive the No. 2 steering connecting plate to rotate under the action of the steering connecting rod. The No. 2 steering connecting plate will drive the No. 2 guide wheel support rod to rotate, and then the guide wheel located at the bottom of the No. 2 guide wheel support rod will also change direction accordingly; at this time, the No. 2 return spring located on the No. 2 steering connecting plate is in a contracted state (or extended state) and plays a role in assisting the rotation and steering.

[0055] In the above embodiments and working principles, the clutch cable, clutch plate and corresponding linkage mechanism are provided, which facilitates the staff to directly implement power cut-in in the cab of the tractor, solves the problem that the traditional power transmission (cut-in) must be pushed by people, and also avoids the problem that when the traditional loader harvester is directly connected to the power transfer, it will cause a great threat to pedestrians when the tractor is moving;

[0056] By adding a tensioning mechanism in the middle of the No. 1 transmission chain, it is convenient to prevent the chain from being dislocated due to loosening of the transmission chain when the frame body is lifted or during operation;

[0057] The multiple soil screening frames are provided to facilitate the screening of the excavated garlic. At the same time, the garlic guide plate can be used to collect the garlic into the gap between the tractor's running wheels during harvesting to avoid being crushed by the tractor's running wheels.

[0058] The coordination of the steering seat, L-shaped adjustment plate, No. 1 steering connecting plate, No. 2 steering connecting plate and guide harness facilitates the steering of the harvester's walking wheels.

[0059] The guide wheel support rod is further protected by the thrust ball bearings arranged on the No. 1 guide wheel support rod and the No. 2 guide wheel support rod.

[0060] 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 technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A garlic harvester, comprising a frame body (1), It is characterized in that A power transmission mechanism is arranged on a side of the frame body (1) close to the tractor. The power transmission mechanism comprises a power transmission frame (2) fixedly mounted on the tractor; the frame body (1) is rotatably mounted on the front end of the power transmission frame (2); a first power transmission shaft (3) is transversely arranged on the power transmission frame (2), a pulley (4) for power transmission with the tractor is rotatably sleeved on the first power transmission shaft (3), a clutch device is arranged at one end of the first power transmission shaft (3), and a first transmission gear (5) is arranged at the other end of the first power transmission shaft (3); A plurality of bearings are arranged on the upper part of the frame body (1), a No. 2 power transmission shaft (6) is installed on the bearing, a No. 1 driven gear (7), a No. 2 transmission gear (8), and a No. 3 transmission gear (9) are fixedly installed on the No. 2 power transmission shaft (6); a No. 1 transmission chain (10) is connected between the No. 1 transmission gear (5) and the No. 1 driven gear (7), and power is transmitted between the No. 1 transmission gear (5) and the No. 1 driven gear (7) via the No. 1 transmission chain (10); The bottom of the frame body (1) is rotatably provided with an active soil screening shaft (11) and a plurality of driven soil screening shafts (12); a second driven gear (13) is provided at the end of the active soil screening shaft (11); the second driven gear (13) transmits power to the driven soil screening shaft (12) through a gear box; a second transmission chain (14) is provided between the second driven gear (13) and the second transmission gear (8); and power is transmitted between the second driven gear (13) and the second transmission gear (8) through the second transmission chain (14); A rotating shaft mounting seat (15) is arranged on the upper part of the frame body (1), a rotating shaft (16) is rotatably mounted on the rotating shaft mounting seat (15), a No. 3 driven gear (17) is arranged at one end of the rotating shaft (16) close to the No. 3 transmission gear (9), a No. 3 transmission chain (18) is arranged between the No. 3 transmission gear (9) and the No. 3 driven gear (17), and the No. 3 transmission gear (9) and the No. 3 driven gear (17) are connected by the No. 3 transmission chain (18). ) to transmit power; an eccentric wheel is sleeved in the middle of the rotating shaft; a garlic digging rack (19) is rotatably mounted on the front side of the frame body (1); an eccentric shaft plate mounting seat (20) is arranged on the upper side of the garlic digging rack (19) close to the frame body (1); an eccentric shaft plate (21) is rotatably mounted on the eccentric shaft plate mounting seat (20); an eccentric shaft plate (21) is provided at one end of the eccentric shaft plate (21) away from the garlic digging rack, and the eccentric shaft sleeve (22) is movably mounted together with the eccentric wheel; A guide wheel mounting frame (23) is also installed at the front end of the frame body (1); two steering seats (24) are arranged at one end of the guide wheel mounting frame (23) away from the frame body (1); a first guide wheel support rod (25) and a second guide wheel support rod (26) are rotatably mounted on the two steering seats (24); guide wheels (27) are rotatably mounted at the bottom of the first guide wheel support rod (25) and the second guide wheel support rod (26).

2. A garlic harvester according to claim 1, It is characterized in that The power transmission frame (2) is also provided with a cylinder (28) for facilitating lifting of the frame body (1); one end of the cylinder (28) away from the power transmission frame (2) is rotatably connected to a cylinder mounting seat (29) provided on the upper side of the front end of the frame body (1).

3. A garlic harvester according to claim 1, It is characterized in that A tensioning mechanism for tensioning the No. 1 transmission chain (10) is also provided in the middle thereof; the tensioning mechanism comprises a tensioning frame (30) provided on the power transmission frame (2); a No. 1 pulley (31) and a No. 2 pulley (32) are provided on the tensioning frame (30); sliding mounting seats (33) are provided on both sides of the No. 1 pulley (31) and the No. 2 pulley (32); the No. 1 pulley (31) and the No. 2 pulley (32) are slidably mounted on the tensioning frame (30) through the sliding mounting seats (33); a tensioning spring (34) is provided on the sliding mounting seats (33); and one end of the tensioning spring (34) away from the sliding mounting seats (33) is fixed to the bottom of the tensioning frame (30).

4. A garlic harvester according to claim 1, It is characterized in that A plurality of steel bars are welded to the circumferential sides of the active soil screening shaft (11) and the plurality of driven soil screening shafts (12), and the plurality of steel bars are arranged to form a soil screening frame, and a supporting connecting plate is arranged between the soil screening frame and the soil screening roller to enhance the stability of the soil screening frame.

5. A garlic harvester according to claim 1, It is characterized in that A garlic guide plate (35) is arranged in the middle of the frame body (1), and an arc is arranged at the bottom of the garlic guide plate (35) to match the soil screening frame.

6. A garlic harvester according to claim 1, It is characterized in that A working shovel (37) is provided at the bottom of the garlic digging rack (19), and the working shovel (37) is arranged obliquely toward the front from the garlic digging rack (19).

7. A garlic harvester according to claim 1, It is characterized in that An L-shaped adjustment plate (38) for adjusting the direction of the guide wheel is fixedly mounted on the steering seat (24); a harness through hole for passing a guide harness for adjusting the direction is provided on the L-shaped adjustment plate (38); a guide harness (40) is passed through the harness through hole; one end of the guide harness (40) is connected to the central control room of the tractor, and the other end is fixedly connected to a No. 1 direction adjustment connecting plate (41) arranged on the top of a No. 1 guide wheel support rod (25); the guide harness (40) is slidably covered with a casing on the outside, and the casing is fixedly connected to the L-shaped adjustment plate (38) at the position of the harness through hole; A No. 2 direction-adjusting connecting plate (42) is also arranged at the top of the No. 2 guide wheel support rod (26), an direction-adjusting connecting rod (43) is arranged between the No. 1 direction-adjusting connecting plate (41) and the No. 2 direction-adjusting connecting plate (42), a No. 1 return spring (44) is fixedly installed on the other side of the No. 2 direction-adjusting connecting plate (42), and one end of the No. 1 return spring (44) away from the No. 2 direction-adjusting connecting plate (42) is fixedly installed on the guide wheel mounting frame (23).

8. A garlic harvester according to claim 1, It is characterized in that The first guide wheel support rod (25) and the second guide wheel support rod (26) are both provided with a support rod protection kit, and the support rod protection kit comprises a fixed through hole provided on the first guide wheel support rod (25) and the second guide wheel support rod (26), and a thrust ball bearing installation adjustment ring (45) is fixedly penetrated and fixed on the fixed through hole, and the first guide wheel support rod (25) and the second guide wheel support rod (26) are sleeved and installed with a thrust ball bearing (46) on the upper part of the thrust ball bearing installation adjustment ring (45).

9. A garlic harvester according to claim 1, It is characterized in that The clutch device comprises a clutch mounting frame (47) arranged at one end of the power transmission frame (2); a wire drawing slot (48) is provided on a side of the clutch mounting frame (47) away from the pulley (4), and a clutch wire (49) is installed in the wire drawing slot (48); an adjustment slot (50) is provided on a side of the clutch mounting frame (47) close to the pulley (4), and a clutch adjustment frame (51) is slidably installed on the adjustment slot (50); One end of the clutch adjustment frame (51) is connected to the clutch cable (49), and the other end of the clutch adjustment frame (51) is fixedly connected to a clutch disc (52) axially slidably mounted on the first power transmission shaft (3); A clamping block (53) is provided on the side of the clutch disc (52) close to the belt pulley (4), and the clamping block (53) cooperates with a clutch disc clamping groove provided on the belt pulley (4); a second return spring (54) is provided on the side of the clutch disc (52) away from the belt pulley (4), and the other side of the second return spring (54) is abutted against a baffle (55) provided at the end of the first power transmission shaft (3).

10. A garlic harvester according to claim 9, It is characterized in that One end of the clutch cable (49) away from the clutch adjustment frame (51) is arranged in the central control room of the tractor.

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