A conveying device and a lavender harvester

Abstract

This application relates to the field of lavender harvesting equipment, and particularly to a conveying device and a lavender harvester. The conveying device includes a conveying housing, a material conveying assembly, and a power assembly. The power assembly is located inside the conveying housing and drives the material conveying assembly to rotate within the housing. Symmetrical raceway structures are provided on both side walls of the conveying housing. The material conveying assembly includes a conveying chain and multiple toothed shaft assemblies. Both ends of the toothed shafts are connected to the conveying chain. A toothed shaft support tube is sleeved on the toothed shaft, and the teeth are spaced apart on the toothed shaft support tube. One end of two roller support plates is located at both ends of the toothed shaft support tube, and rollers are respectively installed at the other ends of the two roller support plates. The length direction of the roller support plates is perpendicular to the centerline of the teeth, and the rollers can roll along the raceway. This application uses a sprocket-driven toothed conveying method for transporting lavender material, which has strong anti-clogging capabilities, improves material integrity, and preserves the commercial value of lavender.

Description

Technical Field

[0001] This application relates to the field of lavender harvesting equipment, and particularly to a conveying device and a lavender harvester. Background Technology

[0002] Lavender is a very important spice crop. Due to its short flowering period and concentrated harvesting operations, it is still mainly harvested manually, which is labor-intensive and inefficient. Labor costs are rising year by year, which has become a major bottleneck restricting the large-scale and standardized development of the lavender industry.

[0003] In mechanized harvesting equipment, the conveying device plays a crucial role in continuously and stably transporting the cut crop material from the header to the hay box. The performance of the conveying device directly affects the overall efficiency, quality, and reliability of the machine.

[0004] Due to the dense flower spikes, slender and flexible stems, and the presence of a certain amount of moisture in lavender, its physical characteristics place special requirements on the conveying method, speed, and structural parameters of the conveying device. Existing lavender harvesters primarily employ the following conveying device solutions: 1. The auger conveyor system is compact and low in cost, but it is prone to accumulation and blockage when the feed volume is large. The auger extrusion will cause the flower spikes to fall off and the essential oil to be lost. It is also difficult to achieve orderly arrangement of stems, which is not conducive to subsequent processing. 2. Belt conveyor solution: This solution improves the continuity and orderliness of conveying, but the gap between the conveyor belt and the cutting table is prone to getting stuck in the stems and causing blockage. When the material has a high moisture content, it is easy to stick to the surface of the conveyor belt. In addition, the tilt angle of the conveyor belt is limited by the work efficiency and it is difficult to adapt to the lifting requirements of large height differences. 3. Airflow conveying scheme: Although this scheme is simple in structure and flexible in layout, lavender flower spikes are easily damaged by impact in high-speed airflow, resulting in a high rate of sepal shedding. At the same time, airflow conveying will also suck in impurities such as field dust, broken branches and leaves, resulting in a high impurity content in the material, which is not conducive to subsequent essential oil extraction and processing, and reduces the commercial value of lavender products. Summary of the Invention

[0005] This application provides a conveying device and a lavender harvester, which can improve material conveying efficiency, enhance anti-blocking capabilities, and increase material integrity.

[0006] In a first aspect, the conveying device provided in this application includes a conveying housing, a material conveying assembly, and a power assembly. The conveying housing includes an inlet end and an outlet end. The power assembly adopts a sprocket structure, is disposed inside the conveying housing, and is capable of driving the material conveying assembly to rotate inside the conveying housing. The two side walls of the conveying housing are respectively provided with symmetrical roller structures; The material conveying assembly includes a conveying chain and multiple toothed shaft assemblies. The conveying chain is connected to the power assembly. Each toothed shaft assembly includes a toothed shaft, a toothed shaft support tube, several teeth, roller support plates, and rollers. Both ends of the toothed shaft are connected to the conveying chain. The toothed shaft support tube is sleeved on the toothed shaft, and the teeth are spaced apart on the toothed shaft support tube. One end of each of the two roller support plates is located at one end of the toothed shaft support tube, and the rollers are located at the other ends of the two roller support plates. The length direction of the roller support plate is perpendicular to the centerline of the teeth, and the rollers can roll along the raceway.

[0007] In a preferred embodiment, the conveying housing includes a left side plate, a right side plate, a bottom plate, and a back plate; The left and right side plates are placed symmetrically, and the back plate is set behind the left and right side plates. The bottom plate is fixed to the bottom of the left side plate, the right side plate and the back plate. The upper end of the back plate is bent so that the left side plate, the right side plate, the bottom plate and the back plate form a box-shaped shell with an open front. The roller structure is set on the left side plate and the right side plate respectively.

[0008] In a preferred embodiment, the base plate is a flat plate with a symmetrical double concave arc shape, which is used to avoid the double-blade cutting table of the harvester.

[0009] In a preferred embodiment, from the opening of the conveyor housing to the back plate, the raceway structure includes an upper raceway, a middle raceway, and a lower raceway with at least some of their working surfaces parallel to each other; the lower raceway bends obliquely toward the opening of the conveyor housing at one end near the bottom plate and extends above the lower end of the upper raceway.

[0010] In a preferred embodiment, the power assembly includes a reducer, a drive shaft assembly, and a driven shaft assembly. The reducer is disposed on the side wall of the conveying housing, the drive shaft assembly is disposed at the lower end of the conveying housing, and the driven shaft assembly is disposed at the upper end of the conveying housing. The drive shaft assembly includes a drive shaft and two drive shaft sprockets at the left and right ends. The drive shaft is connected to the reducer. The drive shaft sprockets are located at the gap between the upper raceway and the middle raceway. The driven shaft assembly includes a driven shaft and two driven shaft sprockets at the left and right ends, the driven shaft sprockets being positioned opposite the driving shaft sprockets; The conveyor chain is fitted and engaged with a set of corresponding drive shaft sprockets and driven shaft sprockets.

[0011] In a preferred embodiment, a driven shaft tensioning mechanism is further included; the driven shaft tensioning mechanism includes a guide sleeve, a tensioning fixing beam, and a tensioning screw tube; the tensioning fixing beam is disposed at the upper end of the conveying housing near the driven shaft; the guide sleeve is fixed to the tensioning fixing beam and is perpendicular to the driven shaft; a stepped hole is provided inside the guide sleeve; A driven shaft bracket is provided on the driven shaft. The driven shaft bracket has a sleeve that is connected to the driven shaft and a rod. The tensioning tube is fixedly installed inside the guide sleeve. The inner wall of the tensioning tube is provided with internal threads and a tensioning bolt is screwed on. The outer end of the tensioning bolt abuts against the support rod. By adjusting the connection depth between the tensioning bolt and the tensioning tube, the distance between the driven shaft and the driving shaft can be adjusted.

[0012] In a preferred embodiment, the driven shaft bracket is positioned opposite the driven shaft sprocket, and at least one of the driven shaft brackets has a semi-circular support plate on the side opposite to the support member; when the gear shaft assembly rotates around the drive shaft, the gear can abut against the support plate to limit the rotation angle of the gear shaft assembly.

[0013] In a preferred embodiment, a roller buffer pad is provided above the upper raceway.

[0014] In a preferred embodiment, the system further includes an upper guard plate, a lower guard plate, a lower grass-blocking connecting plate, and a plurality of lower grass-blocking plates arranged sequentially from the outlet end to the inlet end of the conveying housing for closing the opening of the conveying housing. The plurality of lower grass-blocking plates are spaced apart from the lower grass-blocking connecting plate.

[0015] Secondly, the lavender harvester provided in this application includes any of the conveying devices described in the previous application.

[0016] The beneficial effects of this application are as follows: This application adopts a conveying method of lavender material conveyed by a sprocket-driven tooth conveyor. The small contact area between the tooth and the lavender makes it difficult for the material to stick to the tooth. At the same time, the sprocket conveyor can not only avoid the lavender being severely squeezed and has strong anti-clogging ability, but also improve the integrity rate of the material and preserve the commercial value of lavender. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the conveying device provided in the embodiments of this application; Figure 2 This is a left sectional view of the conveying device provided in the embodiments of this application; Figure 3 This is a schematic diagram of the conveying housing of the conveying device provided in the embodiments of this application; Figure 4 This is a right sectional view of the conveying housing of the conveying device provided in the embodiments of this application; Figure 5 This is a schematic diagram of the conveying component and power component structure of the conveying device provided in the embodiments of this application; Figure 6 This is a schematic diagram of the toothed shaft assembly of the conveying device provided in the embodiments of this application; Numbering on the map: 1-Conveyor housing; 101-Left side plate; 102-Right side plate; 103-Base plate; 104-Base plate reinforcing plate; 105-Lower back plate; 106-Middle back plate; 107-Lower back plate crossbeam; 108-Middle back plate crossbeam; 109-Upper back plate crossbeam; 110-Upper back plate; 111-Top cross plate; 112-Driven shaft tensioning structure; 1121-Guide sleeve; 1122-Tensioning fixing crossbeam; 1123-Tensioning screw tube; 113-Race track fixing Crossbeam; 114-Reducer mounting bracket; 1151-Lower grass guard plate mounting crossbeam; 1152-Lower grass guard plate mounting beam; 116-Lubrication valve mounting seat; 117-Left guard plate track; 118-Right guard plate track; 119-Upper right raceway; 120-Upper right transition raceway; 121-Right middle raceway; 122-Lower right raceway; 123-Upper left raceway; 124-Upper left transition raceway; 125-Left middle raceway; 126-Lower left raceway reinforcing plate; 127-Lower left raceway; 201-Drive shaft baffle; 202-Reducer; 203-Right sprocket of drive shaft; 204-Left sprocket of drive shaft; 205-Drive shaft; 206-Driven shaft sprocket; 207-Driven shaft assembly; 2071-Driven shaft; 2072-Driven shaft baffle; 301 - Lubrication valve; 302 - Driven shaft lubrication pipe; 303 - Tensioning mechanism lubrication pipe; 4-Upper overlap plate; 5-Roller buffer pad; 601 - Upper guard plate; 602 - Lower guard plate; 701-Lower grass barrier connecting plate; 702-Lower grass barrier; 801-Pulley shaft assembly; 8011-Roller connecting bolt; 8012-Roller; 8013-Right roller support plate; 8014-Pulley shaft; 8015-Pulley shaft bushing; 8016-Pulley tooth; 8017-Pulley shaft support tube; 8018-Left roller support plate; 802-Conveyor chain; 901 - Right support for driven shaft; 902 - Left support for driven shaft. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. The components of the embodiments of this application described and labeled in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] like Figures 1-6 As shown, this embodiment provides a conveying device for a lavender harvester, including a conveying housing 1, a power component, and a material conveying component. The conveying housing 1 includes an inlet end and an outlet end. The power component is installed inside the conveying housing 1 and is used to realize the operation of the material conveying component. The material conveying component includes a toothed shaft assembly 801 and a conveying chain 802, and the conveying chain 802 is connected to the power component.

[0027] The conveyor housing includes a left side plate 101, a right side plate 102, and a bottom plate 103. The left side plate 101 and the right side plate 102 are placed symmetrically on the left and right sides. The bottom plate 103 is fixed at the bottom end of the left side plate 101 and the right side plate 102. A lower back plate 105 connected to the left side plate 101 and the right side plate 102 is fixed at the rear end of the bottom plate 103. A bottom plate reinforcing plate 104 connected between the left side plate 101 and the right side plate 102 is fixed above the bottom plate 103 and the lower back plate 105. A middle back plate 106 connected to the left side plate 101 and the right side plate 102 is fixed above the lower back plate 105. An upper back plate 110 is connected to the upper end of the middle back plate 106.

[0028] A lower back plate crossbeam 107 is fixed at the lower rear of the lower back plate 105. Two middle back plate crossbeams 108 are fixed at the middle rear of the middle back plate 106. The upper back plate 110 has a U-shaped bent plate structure. An upper back plate crossbeam 109, which is flush with the front end of the middle back plate 106, is fixed on the inner side of the upper back plate 110.

[0029] The base plate reinforcing plate 104 is a plate with a short plate with a large bending angle on one side. The base plate reinforcing plate 104 is fixed behind the base plate 103, which can improve the structural rigidity and reduce the dead angle of the conveyor.

[0030] Both the top and front ends of the left side plate 101 and the right side plate 102 have bent plates of a certain length, which can improve rigidity. A top horizontal plate 111 is fixed between the top and front bent plates of the left side plate 101 and the right side plate 102. A left guard plate track 117 and a right guard plate track 118 are fixed in front of the front bent plates of the left side plate 101 and the right side plate 102, respectively. The lower and outer end faces of the left and right guard plate tracks 117 and 118 are aligned with the lower and outer end faces of the front bent plates of the left side plate 101 and the right side plate 102. A lower grass-blocking plate fixing crossbeam 1151, which is connected to the left side plate 101 and the right side plate 102, is fixed to the lower end face of the left guard plate track 117 and the right guard plate track 118. A lower grass-blocking plate fixing crossbeam 1152, which is in contact with the left guard plate track 117 and the right guard plate track 118, is fixed in front of the lower grass-blocking plate fixing crossbeam 1151. A lower guard plate 602, which is in contact with the lower grass-blocking plate fixing crossbeam 1152, is connected to the middle of the left guard plate track 117 and the right guard plate track 118 by screws. An upper guard plate 601 is located above the lower guard plate 602.

[0031] Preferably, the base plate 103 is configured as a flat plate with a symmetrical double concave arc shape, which can be used to avoid the double-disc cutting table of the lavender harvester.

[0032] A right upper raceway 119, parallel to the front bending plate of the right side plate 102, is fixed in the middle of the inner side of the right side plate 102. Below the right upper raceway 119, a right middle raceway 121, parallel to the working surface of the right upper raceway 119 and flush with the bottom end, is fixed. Both the right side plate 102 and the left side plate 101 have through holes connecting to the drive shaft 205. Below the right middle raceway 121, a right raceway 121, coaxial with the through hole of the right side plate 102 and parallel to the working surface of the right middle raceway 121, is fixed. The lower raceway 122 has an upper left raceway 123 fixed in the middle of the inner side of the left side plate 101, which is symmetrical to the upper right raceway 119. Below the upper left raceway 123, the middle left raceway 125 is fixed in the middle left raceway 121, and below the middle left raceway 125, the lower left raceway 127 is fixed in the middle left raceway 125, which is coaxial with the through hole of the left side plate 101 and parallel to the working surface of the middle left raceway 125. A lower left raceway reinforcing plate 126 is provided below the lower left raceway 127.

[0033] A driven shaft tensioning mechanism 112 is fixed between the upper left raceway 123 and the middle left raceway 125, and between the upper right raceway 119 and the middle right raceway 121. The driven shaft tensioning mechanism 112 is positioned close to the top of the raceway and is connected to the left side plate 101 and the right side plate 102. Below the driven shaft tensioning mechanism 112, a raceway fixing beam 113 connected to the left side plate 101 and the right side plate 102 is fixed. The two ends of the raceway fixing beam 113 are respectively located between the upper left raceway 123 and the middle left raceway 125, and between the upper right raceway 119 and the middle right raceway 121.

[0034] The upper left raceway 123, the middle left raceway 125, the upper right raceway 119, and the middle right raceway 121 are all made of plates with notches at both ends and vertical bends. The upper left raceway 123 and the upper right raceway 119 are respectively provided with a through hole at the front end. The roller buffer pad 5 is fixed to the through hole position by bolt connection.

[0035] The driven shaft tensioning mechanism 112 includes a guide sleeve 1121, a tensioning fixing beam 1122, and a tensioning screw tube 1123. The guide sleeve 1121 has a stepped hole inside, and the tensioning screw tube 1123 is fixedly installed within the stepped hole of the guide sleeve 1121, with a tensioning bolt screwed into the tensioning screw tube 1123. The tensioning fixing beam 1122 has two through holes, and the guide sleeve 1121 is fixed within the through holes of the tensioning fixing beam 1122, with the guide sleeve 1121 and the tensioning fixing beam 1122 being perpendicular to each other.

[0036] An upper left transition roller 124, which is flush with the working surface of the upper left roller 123, is fixed at the upper end of the upper left roller 123. An upper right transition roller 120, which is flush with the working surface of the upper left roller 123 and the tensioning and fixing crossbeam 1122, is fixed at the left end of the upper right roller 119. The upper right transition roller 120 is a plate with a small bending angle. The upper left transition roller 124 is a plate with a vertical bending angle on one side and a small bending angle on the other end, which is used to assist the movement of other components during the operation of the conveying device.

[0037] A reducer fixing support 114, which is coaxial with the through hole of the left side plate 101, is fixed on the outside of the left side plate 101. The reducer fixing support 114 is a U-shaped bent plate and is used to fix the position of the reducer 202.

[0038] The power assembly includes a reducer 202, a drive shaft 205, a drive shaft baffle 201, a drive shaft left sprocket 204, a drive shaft right sprocket 203, a driven shaft assembly 207, a driven shaft sprocket 206, a driven shaft left bracket 902, and a driven shaft right bracket 901.

[0039] The reducer 202 is fixed to the reducer mounting bracket 114 by bolts. The drive shaft 205 is connected to the bearing housings of the left side plate 101 and the right side plate 102, and one end of the drive shaft 205 is connected to the reducer 202 for transmission. The left sprocket 204 and the right sprocket 203 of the drive shaft are respectively connected to the two ends of the drive shaft 205 by set screws and flat keys. The left sprocket 204 is located at the notch between the upper left raceway 123 and the middle left raceway 125, and the right sprocket 203 is located at the notch between the upper right raceway 119 and the middle right raceway 121.

[0040] A shoulder is provided on the side of the drive shaft 205 near the reducer 202, which is slightly smaller than the width of the reducer 202. The drive shaft baffle 201 is fixed to the reducer end face of the drive shaft 205 near the reducer 202 by bolts, and is used to position the drive shaft 205 axially.

[0041] Driven shaft assembly 207 includes driven shaft 2071, driven shaft sprocket 206, and driven shaft baffle 2072. Driven shaft baffle 2072 is symmetrically fixed at both ends of driven shaft 2071. Driven shaft left bracket 902 is connected to the driven shaft 2071 on the left side of left driven shaft baffle 2072, and driven shaft right bracket 901 is connected to the driven shaft 2071 on the right side of right driven shaft baffle 2072. Driven shaft sprocket 206 is fixed to the driven shaft 2071 on the left side of left bracket 902 and the right side of right bracket 901, respectively. The center surfaces of the teeth of driven shaft sprocket 206 coincide with the center surfaces of the teeth of drive shaft left sprocket 204 and drive shaft right sprocket 203, respectively.

[0042] Both the left and right driven shaft supports 902 and 901 include sleeves and support rods. The left and right driven shaft supports 902 and 901 are connected to the driven shaft 2071 via sleeves, and their respective support rods abut against the outer ends of the tensioning bolts of the corresponding driven shaft tensioning mechanism 112. By adjusting the connection depth between the tensioning bolts and the tensioning screw tube 1123, the support rods can be abutted and pushed, thereby adjusting the distance between the driven shaft 2071 and the drive shaft 205.

[0043] An arc-shaped semi-circular plate is also provided on the outer side of the sleeve of the driven shaft right bracket 901, opposite to the support rod.

[0044] The material conveying assembly includes a conveyor chain 802, a toothed shaft assembly 801, and a lower baffle plate 702. The conveyor chain 802 is configured to add a chain plate with a larger diameter sleeve every three sets of ordinary chains.

[0045] The gear-shifting shaft assembly 801 includes a gear-shifting shaft 8014, a gear-shifting shaft support tube 8017, a gear-shifting shaft sleeve 8015, gears 8016, a right roller support plate 8013, a left roller support plate 8018, a roller 8012, and a roller connecting bolt 8011. Eleven gears 8016 are evenly fixed on the gear-shifting shaft support tube 8017. The right roller support plate 8013 has through holes on both sides of its long side for positioning and connecting the gear-shifting shaft 8014, as well as through holes for connecting the roller connecting bolt 8011. The left roller support plate 8018 is based on the shape of the right roller support plate 8013, with an additional triangular plate section added to one side of the positioning through holes. A left roller support plate 8018, with its center coaxial with the center of the support tube, is fixed at the left end of the gear-shifting shaft support tube 8017. A right roller support plate 8013, with its center coaxial with the center of the support tube and its roller through hole coaxial with the roller through hole of the left roller support plate 8018, is fixed at the right end of the gear-shifting shaft support tube 8017. The gear-shifting shaft 8014 is configured with a stepped side and a collar in the middle. The gear-shifting shaft 8014 is symmetrically fixed in the positioning through holes of the right roller support plate 8013 and the left roller support plate 8018, with the stepped shaft on the outside and the end face of the support plate connected to the end face of the collar. Rollers 8012 are connected to the shoulder of the gear-shifting shaft 8014 and to the right roller support plate 8013 and the left roller support plate 8018 through roller connecting bolts 8011.

[0046] The gear shaft bushing 8015 is made of self-lubricating plastic material. The gear shaft bushing 8015 is connected to the journal of the gear shaft 8014. The gear shaft assembly 801 is installed in the sleeves of two symmetrical conveyor chains 802 through the shaft elastic retaining ring. The gear shaft assembly 801 is installed on the left sprocket 204 of the drive shaft, the right sprocket 203 of the drive shaft, and the driven shaft sprocket 206 through the conveyor chains 802.

[0047] The 8016 pick has a trapezoidal shape, which can appropriately reduce the weight of the whole machine without affecting work efficiency.

[0048] The lower grass baffle connecting plate 701 is provided with 10 equally spaced connecting short plates, each with through holes. 10 lower grass baffles 702 are bolted to the lower grass baffle connecting plate 701. The lower grass baffle connecting plate 701 is bolted to the lower grass baffle fixing horizontal plate 1151. The symmetrical plane of the lower grass baffle 702 is located on the symmetrical plane of the two teeth 8016 of the toothed shaft assembly 801.

[0049] An elongated hole is located between the left side plate 101 and the right side plate 102. A lubrication valve mounting seat 116 is fixed to one side of the elongated hole in the left side plate 101 and the right side plate 102, and a lubrication valve 301 is installed on the lubrication valve mounting seat 116. An oil cup is installed on the front of the lubrication valve 301, and two quick-connect interfaces for connecting lubrication pipes are installed on the back of the lubrication valve 301. Quick-connect interfaces are installed on the threaded holes of the driven shaft left bracket 902, the driven shaft right bracket 901, and the tensioning fixed crossbeam 1122. The driven shaft lubrication pipes 302 are connected to the upper ends of the two lubrication valves 301 and the driven shaft left bracket and the driven shaft right bracket through the quick-connect interfaces. The tensioning mechanism lubrication pipes 303 are connected to the lower ends of the two lubrication valves 301 and the two tensioning fixed crossbeams 1122 through the quick-connect interfaces. Lubricating oil can be supplied to the driven shaft 205 and the driven shaft tensioning structure 112 respectively through the driven shaft lubrication pipe 302 and the tensioning mechanism lubrication pipe 303.

[0050] The working principle of this embodiment is as follows: The conveying device provided in this embodiment is installed between the cutter and the hay box of the lavender harvester. The outlet end is fixed to the upper end of the hay box by the upper overlapping plate 4, and the inlet end is fixed to the running outlet of the combing wheel and the cutter.

[0051] During operation, the lavender material harvested by the cutter enters the inlet of the conveyor. The reducer 202 drives the drive shaft 205 to rotate via a flat key. The drive shaft left sprocket 204 and drive shaft right sprocket 203, installed on both sides of the drive shaft 205, rotate clockwise, driving the conveyor chain 802 to run, causing the slack side chain to move upward, which in turn drives the toothed shaft assembly 801 of the slack side chain to move upward. Because the center of gravity of the toothed shaft assembly 801 is focused on the toothed tooth 8016, the toothed shaft assembly 801 located on the slack side rotates counterclockwise under the influence of gravity until the rollers 8012 on the right roller support plate 8013 and the left roller support plate 8018 contact the lower raceway surface and stop rotating. The toothed tooth 8016 is rotated to the middle of the lower grass baffle 702 and the middle back plate 106.

[0052] As the loose-sided toothed shaft assembly 801 is driven upward by the conveyor chain 802, the toothed shaft 8016 contacts the material and pushes it upward between the surface of the middle back plate 106 and the lower baffle plate 702. During the pushing process, the roller 8012 rolls on the surfaces of the lower left and lower right roller tracks 127 and 122. When the material is pushed to the upper end of the upper back plate 110, i.e., the outlet end of the conveying device, it will fall into the rear straw box. Subsequently, the toothed shaft assembly 801 continues to move upward and continues to rotate counterclockwise due to the lower center of gravity of the toothed shaft assembly 801, until the toothed shaft 8016 contacts the semi-circular plate of the right support 901 of the driven shaft. Then, the toothed shaft assembly 801 moves along the trajectory of the semi-circular plate of the right support 901 of the driven shaft and rotates clockwise, and the roller 8012 leaves the lower roller track.

[0053] When the gear shaft assembly 801 moves to the end of the semi-circular plate track, the gear 8016, which rests against the right support 901 of the driven shaft, contacts the upper right transition raceway 120. During this process, the gear shaft assembly 801 rotates clockwise until the right roller support plate 8013 and the left roller support plate 8018 are perpendicular to the upper left raceway 123 and the upper right raceway 119, and the two rollers 8012 are suspended above the upper raceway.

[0054] The gear shaft 8014 continues to be driven by the conveyor chain 802. When the left roller support plate 8018 contacts the upper left transition raceway 124, the gear shaft assembly 801 rotates clockwise due to the obstruction of the upper left transition raceway 124 and the drive of the conveyor sprocket 802, until the roller 8012 on the bracket falls onto the roller buffer pad 5. Because the rotated gear 8016 faces forward and the center of gravity of the gear shaft assembly 801 is forward, the gear shaft assembly 801 has a tendency to rotate clockwise. The rollers 8012 on the right roller support plate 8013 and the left roller support plate 8018 are always supported and roll on the upper left raceway 123 and the upper right raceway 119.

[0055] When the gear shaft assembly 801 is driven by the conveyor chain 802 to the vicinity of the drive shaft 205, the roller 8012 leaves the upper left raceway 123 and the upper right raceway 119 and continues to move downward. The gear shaft assembly 801 has a tendency to rotate clockwise. The roller 8012 on the right roller support plate 8013 contacts the circular track of the right sprocket 203 of the drive shaft. The roller 8012 moves along the circular track until it enters the middle of the arc between the circular track and the lower right raceway 122, which can restrict the gear shaft assembly 801 to rotate along the arc trajectory, thereby conveying a new batch of materials.

[0056] This embodiment uses a sprocket-driven conveyor system to transport lavender material. The small contact area between the sprocket and the lavender makes it difficult for the material to stick to the sprocket. At the same time, the sprocket conveyor can avoid the lavender being severely squeezed, has strong anti-clogging ability, and improve the integrity rate of the material, thus preserving the commercial value of lavender.

[0057] This embodiment also provides a lavender harvester, including the aforementioned lavender harvester conveying device. This lavender harvester possesses all the technical advantages of the conveying device, which will not be elaborated further here.

[0058] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A conveying device, characterized in that, It includes a conveying housing, a material conveying assembly, and a power assembly. The conveying housing includes an inlet end and an outlet end. The power assembly is disposed inside the conveying housing and is capable of driving the material conveying assembly to rotate inside the conveying housing. The two side walls of the conveying housing are respectively provided with symmetrical roller structures; The material conveying assembly includes a conveying chain and multiple toothed shaft assemblies. The conveying chain is connected to the power assembly. Each toothed shaft assembly includes a toothed shaft, a toothed shaft support tube, several teeth, roller support plates, and rollers. Both ends of the toothed shaft are connected to the conveying chain. The toothed shaft support tube is sleeved on the toothed shaft, and the teeth are spaced apart on the toothed shaft support tube. One end of each of the two roller support plates is located at one end of the toothed shaft support tube, and the rollers are located at the other ends of the two roller support plates. The length direction of the roller support plate is perpendicular to the centerline of the teeth, and the rollers can roll along the raceway.

2. The conveying device according to claim 1, characterized in that, The conveying housing includes a left side plate, a right side plate, a bottom plate, and a back plate; The left and right side plates are placed symmetrically, and the back plate is set behind the left and right side plates. The bottom plate is fixed to the bottom of the left side plate, the right side plate and the back plate. The upper end of the back plate is bent so that the left side plate, the right side plate, the bottom plate and the back plate form a box-shaped shell with an open front. The roller structure is set on the left side plate and the right side plate respectively.

3. The conveying device according to claim 2, characterized in that, The base plate is a flat plate with a symmetrical double concave arc shape, which is used to avoid the double-blade cutting table of the harvester.

4. The conveying device according to claim 2, characterized in that, From the opening of the conveyor housing to the back plate, the raceway structure includes an upper raceway, a middle raceway, and a lower raceway with at least some of their working surfaces parallel to each other; the lower raceway bends obliquely toward the opening of the conveyor housing at one end near the bottom plate and extends above the lower end of the upper raceway.

5. The conveying device according to claim 4, characterized in that, The power assembly includes a reducer, a drive shaft assembly, and a driven shaft assembly. The reducer is disposed on the side wall of the conveying housing, the drive shaft assembly is disposed at the lower end of the conveying housing, and the driven shaft assembly is disposed at the upper end of the conveying housing. The drive shaft assembly includes a drive shaft and two drive shaft sprockets at the left and right ends. The drive shaft is connected to the reducer. The drive shaft sprockets are located at the gap between the upper raceway and the middle raceway. The driven shaft assembly includes a driven shaft and two driven shaft sprockets at the left and right ends, the driven shaft sprockets being positioned opposite the driving shaft sprockets; The conveyor chain is fitted and engaged with a set of corresponding drive shaft sprockets and driven shaft sprockets.

6. The conveying device according to claim 5, characterized in that, It also includes a driven shaft tensioning mechanism; the driven shaft tensioning mechanism includes a guide sleeve, a tensioning fixing beam and a tensioning screw tube, the tensioning fixing beam is disposed at the upper end of the conveying housing near the driven shaft; the guide sleeve is fixed to the tensioning fixing beam and is perpendicular to the driven shaft; the guide sleeve has a stepped hole inside; A driven shaft bracket is provided on the driven shaft. The driven shaft bracket has a sleeve that is connected to the driven shaft and a rod. The tensioning tube is fixedly installed inside the guide sleeve. The inner wall of the tensioning tube is provided with internal threads and a tensioning bolt is screwed on. The outer end of the tensioning bolt abuts against the support rod. By adjusting the connection depth between the tensioning bolt and the tensioning tube, the distance between the driven shaft and the driving shaft can be adjusted.

7. The conveying device according to claim 6, characterized in that, The driven shaft bracket is positioned opposite the driven shaft sprocket, and at least one of the driven shaft brackets has a semi-circular support plate on the side opposite to the support member; when the gear shaft assembly rotates around the drive shaft, the gear can abut against the support plate to limit the rotation angle of the gear shaft assembly.

8. The conveying device according to claim 4, characterized in that, A roller buffer pad is installed above the upper raceway.

9. The conveying device according to claim 2, characterized in that, It also includes an upper guard plate, a lower guard plate, a lower grass-blocking connecting plate, and a plurality of lower grass-blocking plates arranged sequentially from the outlet end to the inlet end of the conveying housing for closing the opening of the conveying housing, wherein the plurality of lower grass-blocking plates are spaced apart from the lower grass-blocking connecting plate.

10. A lavender harvester, characterized in that, Includes the conveying device as described in any one of claims 1 to 9.

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