Discharging device and tomato harvester

Abstract

The utility model discloses a discharging device and a tomato harvester, comprising: an arm support including a first arm support arranged on a frame, a second arm support hinged with one end of the first arm support far away from the frame, and a third arm support hinged with one end of the second arm support far away from the first arm support; the unloading belt is wound on the arm frame; the driving device is used for driving the unloading belt to move; the second-section and third-section arm frame adjusting mechanism is used for adjusting an included angle between the second arm frame and the third arm frame; the integral adjusting mechanism is used for adjusting an included angle between the first arm frame and the second arm frame; the overall posture of the discharging device is changed through the second-section and third-section arm frame adjusting mechanism and the overall adjusting mechanism. The unloading device provided by the utility model has more degrees of freedom and strong controllability, and can meet the use requirements in different process stages of transfer and work.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a discharge device. In addition, the utility model also relates to a tomato harvester comprising the discharge device. Background Art

[0002] During the operation of the tomato harvester, the harvested tomatoes are transported to the fruit sorting side through the material flow through the lateral conveying device. The fruit sorting side mainly selects immature tomatoes and cleans up debris. After the sorting is completed, the sorted tomatoes are transported to the tomato transfer vehicle through the unloading device to complete the entire harvesting process. As the last link in the tomato harvester's harvesting operation, the tomato harvester unloading device is directly related to the operating efficiency of the tomato harvester whether it can stably and reliably transport tomatoes to the designated transfer vehicle and unloading location. At the same time, a reliable tomato harvester unloading device can also prevent tomatoes from falling, saving manpower and material costs.

[0003] Most of the existing unloading devices are fixed structures, and unloading is carried out by means of conveyor belts, bolt conveyors, etc. On the one hand, such devices require a large installation space, and on the other hand, most of such devices can only be adjusted by simple rotation or translation. During the unloading process of the tomato harvester, due to the influence of the transfer vehicle and the field conditions, the unloading device needs to have greater controllability and be able to arbitrarily change the unloading height, unloading angle, etc. At the same time, as an agricultural machinery, the tomato harvester needs different modes in different stages of transportation and work. Therefore, the existing conveying device is not suitable for the working conditions of the tomato harvester. Utility Model Content

[0004] The utility model provides a discharge device and a tomato harvester to solve the technical problem that the existing discharge device cannot arbitrarily change the discharge height and the discharge angle and is difficult to meet the use requirements of transportation and different process stages of work.

[0005] According to one aspect of the utility model, a discharging device is provided, comprising:

[0006] A boom, the boom comprising a first boom arranged on a frame, a second boom hinged to an end of the first boom away from the frame, and a third boom hinged to an end of the second boom away from the first boom;

[0007] A discharge belt, wound on the arm;

[0008] A driving device, used for driving the unloading belt to move;

[0009] A second and third-stage arm support adjustment mechanism, used for adjusting the angle between the second arm support and the third arm support;

[0010] An integral adjustment mechanism, used for adjusting the angle between the first arm support and the second arm support;

[0011] The unloading device changes its overall posture through the two-stage and three-stage boom adjustment mechanisms and the overall adjustment mechanism.

[0012] Furthermore, the first boom includes a first support frame, on which a first hinged support for hingedly connecting the second boom, a first roller for supporting the unloading belt, and an boom connecting plate for connecting to a frame are arranged.

[0013] Furthermore, the second arm bracket includes a second supporting frame, on which is arranged a second hinge plate for hingedly connecting the third arm bracket, a first hinge shaft for connecting the second and third section arm bracket adjustment mechanisms, a second hinge seat for hingedly connecting the overall adjustment mechanism, a second roller for supporting the unloading belt, and a first hinge seat for hingedly connecting the first hinged support.

[0014] Furthermore, the third arm includes a third supporting frame, on which a third hinged plate for hingedly connecting the second hinged plate, a second hinged shaft for connecting the second and third stage arm adjustment mechanisms, and a third roller for supporting the unloading belt are arranged.

[0015] Furthermore, the arm support also includes a fourth arm support connected to an end of the third arm support away from the second arm support, and the fourth arm support includes a fourth support frame, and a fourth roller for supporting the unloading belt is arranged on the fourth support frame.

[0016] Furthermore, a baffle bracket and a baffle adjustment mechanism for driving the baffle bracket to rotate are hinged on the free end of the fourth arm, and a unloading baffle is arranged on the baffle bracket.

[0017] Furthermore, the first articulated shaft includes a connecting rod articulated shaft and a cylinder articulated shaft, the two-three-stage arm adjustment mechanism includes a pull rod, a connecting rod and an adjusting cylinder, the first end of the pull rod is articulated to the second articulated shaft, the second end of the pull rod is articulated to the first end of the connecting rod, the second end of the connecting rod is articulated to the connecting rod articulated shaft, the first end of the adjusting cylinder is articulated to the middle part of the connecting rod, and the second end of the adjusting cylinder is articulated to the cylinder articulated shaft.

[0018] Furthermore, it also includes an arm support frame for limiting the folding position of the second arm.

[0019] Furthermore, a mesh cover is arranged on the arm.

[0020] According to another aspect of the utility model, a tomato harvester is also provided, which comprises the above-mentioned unloading device.

[0021] The utility model has the following beneficial effects:

[0022] The unloading device of the utility model, when unloading, carries tomatoes and translates through the first arm, adjusts the angle between the second arm and the first arm through the overall adjustment mechanism, thereby realizing the adjustment of the height of the second arm lifting tomatoes, and realizes more choices of the throwing angle of the third arm through the second and third-stage arm adjustment mechanism. It can also change the distance between the throwing point and the frame of the tomato harvester, thereby adjusting the spacing between the receiving vehicle and the frame of the tomato harvester to be suitable for receiving vehicles of different sizes; a unloading belt is wound around the first arm, the second arm and the third arm, and only one driving device is needed to drive the first arm, the second arm and the third arm to operate synchronously, and the structure is ingenious. Optionally, the driving device can be an engine, an electric motor or a hydraulic motor. Optionally, the overall adjustment mechanism is a gear rack mechanism driven by a hydraulic cylinder, a cylinder or a motor. Optionally, conveying baffles are arranged at intervals on the unloading belt to prevent tomatoes from falling from top to bottom during transportation, thereby increasing the unloading efficiency; during transportation, the unloading device can be folded by controlling the second and third section arm adjustment mechanisms and the overall adjustment mechanism to reduce the space occupied by the unloading device, thereby improving the passability of the tomato harvester during transportation. The unloading device has more degrees of freedom and strong controllability, and can meet the use requirements of transportation and different process stages of work.

[0023] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0025] Figure 1 It is a schematic diagram of the structure of the unloading device of the preferred embodiment of the utility model when it is working;

[0026] Figure 2 It is a structural schematic diagram of the first arm of the preferred embodiment of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the second arm support of the preferred embodiment of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the third arm support of the preferred embodiment of the utility model;

[0029] Figure 5It is a structural schematic diagram of the fourth arm support of the preferred embodiment of the utility model;

[0030] Figure 6 It is a structural schematic diagram of a two- and three-stage boom adjustment mechanism of a preferred embodiment of the utility model;

[0031] Figure 7 It is a schematic structural diagram of the unloading device of the preferred embodiment of the utility model when folded during transportation.

[0032] Legend:

[0033] 1. First boom; 1-1. First articulated support; 1-2. First roller; 1-3. First support frame; 1-4. Scraper; 1-5. Boom connecting plate; 2. Second boom; 2-1. Second articulated plate; 2-2. Connecting rod articulated shaft; 2-3. Cylinder articulated shaft; 2-4. Second support frame; 2-5. Second articulated seat; 2-6. Second roller; 2-7. First articulated seat; 3. Third boom; 3-3. Third support frame; 3-1. Third articulated plate; 3-2. Second articulated shaft; 3-4. Third roller ;4. Fourth boom;4-1. Unloading baffle;4-2. Baffle bracket;4-3. Driving shaft;4-4. Baffle adjustment mechanism;4-5. Support rod;4-6. Fourth support frame;4-7. Sprocket;4-8. Fourth roller;4-9. Bolt hole;5. Driving device;6. Second and third section boom adjustment mechanism;6-1. Pull rod;6-2. Connecting rod;6-3. Adjustment cylinder;7. Net cover;8. Net cover support frame;9. Unloading belt;9-1. Conveying baffle;10. Overall adjustment mechanism;11. Boom support frame. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0035] Please also read Figures 1 to 7 The unloading device of this embodiment includes:

[0036] The boom comprises a first boom 1 arranged on the frame, a second boom 2 hinged to one end of the first boom 1 away from the frame, and a third boom 3 hinged to one end of the second boom 2 away from the first boom 1;

[0037] The unloading belt 9 is wound on the arm;

[0038] A driving device 5, used for driving the unloading belt 9 to move;

[0039] The second and third-stage arm support adjustment mechanism 6 is used to adjust the angle between the second arm support 2 and the third arm support 3;

[0040] The overall adjustment mechanism 10 is used to adjust the angle between the first arm 1 and the second arm 2;

[0041] The unloading device changes its overall posture through the two- and three-stage boom adjustment mechanism 6 and the overall adjustment mechanism 10.

[0042] The unloading device of this embodiment, when working, carries tomatoes and translates through the first arm 1, adjusts the angle between the second arm 2 and the first arm 1 through the overall adjustment mechanism 10, thereby adjusting the height of the second arm 2 lifting tomatoes, and adjusts the angle between the third arm 3 and the second arm 2 through the second and third section arm adjustment mechanism 6, thereby achieving more options for the throwing angle of the third arm 3, and can also change the distance between the throwing point and the frame of the tomato harvester, thereby adjusting the spacing between the receiving vehicle and the frame of the tomato harvester to be suitable for receiving vehicles of different sizes; a unloading belt 9 is wound around the first arm 1, the second arm 2 and the third arm 3, and only one driving device 5 is needed to drive the first arm 1, the second arm 2 and the third arm 3 to operate synchronously, and the structure is ingenious. Optionally, the driving device 5 can be an engine, a motor or a hydraulic motor. Optionally, the overall adjustment mechanism 10 is a gear rack mechanism driven by a hydraulic cylinder, a cylinder or a motor. Optionally, conveying baffles 9-1 are arranged at intervals on the unloading belt 9 to prevent tomatoes from falling from top to bottom during transportation, thereby increasing the efficiency of unloading; during transportation, the unloading device can be folded by controlling the second and third section arm adjustment mechanism 6 and the overall adjustment mechanism 10 to reduce the space occupied by the unloading device, thereby improving the transportability of the tomato harvester during transportation. Optionally, the unloading belt 9 is a conveying rod arranged at intervals, and the conveying rod is arranged along the conveying direction perpendicular to the unloading device. On the one hand, it has a good ventilation effect and can screen out impurities attached to the tomatoes. On the other hand, the sprocket drive can prevent the unloading belt 9 from slipping, thereby improving the unloading efficiency. Optionally, a connecting rod is arranged between two adjacent conveying rods, and the connecting rod is arranged along the conveying direction of the unloading device.

[0043] In this embodiment, the first boom 1 includes a first support frame 1-3, on which a first hinge support 1-1 for hingedly connecting the second boom 2, a first roller 1-2 for supporting the unloading belt 9, and an boom connecting plate 1-5 for connecting the vehicle frame are arranged. The first boom 1 is installed on the vehicle frame through the boom connecting plate 1-5 to provide support for the entire unloading device. Optionally, a scraper 1-4 is arranged on the first support frame 1-3, which can scrape off some of the pollutants such as soil, weeds, branches, etc. attached to the unloading belt 9 during operation to prevent the roller from getting stuck and causing wear of the unloading belt 9.

[0044] In this embodiment, the second arm 2 includes a second supporting frame 2-4, on which is arranged a second hinged plate 2-1 for hingedly connecting the third arm 3, a first hinged shaft for connecting the second and third section arm adjustment mechanisms 6, a second hinged seat 2-5 for hingedly connecting the overall adjustment mechanism 10, a second roller 2-6 for supporting the unloading belt 9 and a first hinged seat 2-7 for hingedly connecting the first hinged support 1-1. The second arm 2 is hingedly connected to the first arm 1, and the angle between the second arm 2 and the first arm 1 is adjusted by controlling the telescopic length of the overall adjustment mechanism 10, thereby realizing the adjustment of the lifting height of tomatoes.

[0045] In this embodiment, the third arm 3 includes a third supporting frame 3-3, on which the third supporting frame 3-3 is provided a third hinged plate 3-1 for hingedly connecting the second hinged plate 2-1, a second hinge shaft 3-2 for connecting the second and third section arm adjustment mechanism 6, and a third roller 3-4 for supporting the unloading belt 9. The third arm 3 is hinged to the second arm 2, and the angle between the third arm 3 and the second arm 2 is adjusted by the second and third section arm adjustment mechanism 6, so as to achieve more choices of throwing angles, and can also change the distance between the throwing point and the frame of the tomato harvester, so as to adjust the spacing between the collecting vehicle and the frame of the tomato harvester to be suitable for collecting vehicles of different sizes.

[0046] In this embodiment, the boom also includes a fourth boom 4 connected to the end of the third boom 3 away from the second boom 2 to increase the distance between the receiving vehicle and the vehicle frame. The fourth boom 4 includes a fourth support frame 4-6, and a fourth roller 4-8 for supporting a discharge belt 9 is arranged on the fourth support frame 4-6. A discharge belt 9 is wound around the first boom 1, the second boom 2, the third boom 3 and the fourth boom 4. Only one driving device 5 is needed to drive the first boom 1, the second boom 2, the third boom 3 and the fourth boom 4 to operate synchronously. Optionally, a support rod 4-5 is arranged on the fourth boom 4, and the support rod 4-5 can support the fourth boom 4 after the discharge device is folded to avoid the fourth boom 4 from colliding with the second boom 2 and / or the third boom 3. Optionally, the driving device 5 is arranged on the fourth arm 4, and the fourth arm 4 is provided with a driving shaft 4-3 driven by the driving device 5, and the driving shaft 4-3 is provided with a sprocket 4-7 for driving the shoe material belt 9, and the driving device 5 drives the sprocket 4-7 to rotate through the driving shaft 4-3, thereby driving the unloading belt 9 to operate for unloading operation; it can be understood that the driving shaft 4-3 can also be arranged on the first arm 1, the second arm 2 or the third arm 3. Optionally, the fourth support frame 4-6 is hinged to the third support frame 3-3, and a plurality of bolt holes 4-9 are provided on one end of the fourth support frame 4-6 and the third support frame 3-3, and positioning holes adapted to the bolt holes 4-9 are provided on the third support frame 3-3. By selecting different bolt holes 4-9 to insert bolts, the angle between the fourth arm 4 and the third arm 3 can be adjusted.

[0047] In this embodiment, a baffle support 4-2 and a baffle adjustment mechanism 4-4 for driving the baffle support 4-2 to rotate are hinged on the free end of the fourth arm 4. A discharge baffle 4-1 is arranged on the baffle support 4-2. The baffle adjustment mechanism 4-4 is extended and retracted to adjust the inclination angle of the discharge baffle 4-1, thereby controlling the landing point of tomatoes according to the actual needs of the discharge operation. Optionally, the baffle adjustment mechanism 4-4 is a gear rack mechanism driven by a hydraulic cylinder, a cylinder or a motor.

[0048] In this embodiment, the first articulated axis includes a connecting rod articulated axis 2-2 and a cylinder articulated axis 2-3 arranged along the length direction of the second boom 2, the second and third stage boom adjustment mechanism 6 includes a pull rod 6-1, a connecting rod 6-2 and an adjustment cylinder 6-3, the first end of the pull rod 6-1 is articulated with the second articulated axis 3-2, the second end of the pull rod 6-1 is articulated with the first end of the connecting rod 6-2, the second end of the connecting rod 6-2 is articulated with the connecting rod articulated axis 2-2, the first end of the adjustment cylinder 6-3 is articulated with the middle part of the connecting rod 6-2, and the second end of the adjustment cylinder 6-3 is articulated with the middle part of the connecting rod 6-2. The end is hinged with the cylinder articulation shaft 2-3, and the angle between the second arm 2 and the third arm 3 can be adjusted by adjusting the extension of the oil cylinder 6-3, so as to adjust the throwing angle of the unloading device, and change the distance between the throwing point and the frame of the tomato harvester, so as to adjust the spacing between the collecting vehicle and the frame of the tomato harvester, so as to be suitable for collecting vehicles of different sizes; at the same time, after the angle between the third arm 3 and the fourth arm 4 is changed, the length of the pull rod 6-1 can be adjusted so that the support rod 4-5 can still support the arm 44. Optionally, the adjustment cylinder 6-3 can also be a gear rack mechanism driven by a cylinder or a motor.

[0049] Preferably, the driving device 5 is a hydraulic motor, the overall adjustment mechanism 10 is a hydraulic cylinder, and the baffle adjustment mechanism 4-4 is a hydraulic cylinder. At this time, the adjustment cylinder 6-3, the overall adjustment mechanism 10, the baffle adjustment mechanism 4-4 and the driving device 5 can share the hydraulic oil supply system on the tomato harvester.

[0050] In this embodiment, it also includes an arm support frame 11 for limiting the folding position of the second arm 2. The arm support frame 11 is arranged on the frame. When the unloading device is retracted, it can support the second arm 2 and limit the folding position of the second arm 2 to avoid collision between the second arm 2 and the frame.

[0051] In this embodiment, a mesh cover 7 is arranged on the arm to prevent tomatoes from jumping out from above the arm during unloading and causing losses. Optionally, the mesh cover 7 is a metal wire mesh or a nylon rope mesh, which is low in cost, easy to purchase, has good ventilation effect, and can penetrate the transportation of tomatoes. Optionally, the mesh cover 7 is connected to the arm through a mesh cover support frame 8 to improve the durability of the mesh cover 7 and prevent the mesh cover 7 from being deformed or damaged.

[0052] During the specific implementation of the unloading device provided by the utility model, the unloading device can control the adjustment of the angle between the second arm 2 and the first arm 1 by adjusting the extension and retraction of the overall adjustment mechanism 10, can adjust the angle between the third arm 3 and the second arm 2 by adjusting the second and third section arm adjustment mechanism 6, and when necessary, can adjust the angle between the fourth arm 4 and the third arm 3 by selecting the bolt holes 4-9, finally, can adjust the inclination angle of the unloading baffle 4-1 by adjusting the baffle adjustment mechanism 4-4, so as to meet the unloading work under different working conditions and different transfer vehicles; when the unloading device is not working, the unloading device can be contracted and folded by the extension and retraction of the overall adjustment mechanism 10, which greatly reduces the space occupied.

[0053] A tomato harvester comprises the above-mentioned unloading device, which can save manpower and material resources during operation, transportation and maintenance, so that the unloading operation of the tomato harvester is stable and reliable, and the transportation process is safe and efficient.

[0054] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A discharging device, characterized in that: include: A boom, the boom comprising a first boom (1) arranged on a vehicle frame, a second boom (2) hingedly connected to an end of the first boom (1) away from the vehicle frame, and a third boom (3) hingedly connected to an end of the second boom (2) away from the first boom (1); A discharge belt (9) is wound around the arm; A driving device (5) for driving the unloading belt (9) to move; A second-third-stage arm support adjustment mechanism (6) for adjusting the included angle between the second arm support (2) and the third arm support (3); An integral adjustment mechanism (10) for adjusting the angle between the first arm support (1) and the second arm support (2); The unloading device changes its overall posture through the two- and three-stage boom adjustment mechanism (6) and the overall adjustment mechanism (10).

2. The unloading device according to claim 1, characterized in that: The first boom (1) comprises a first support frame (1-3), on which a first hinge support (1-1) for hingedly connecting the second boom (2), a first roller (1-2) for supporting the unloading belt (9), and a boom connecting plate (1-5) for connecting to a vehicle frame are arranged.

3. The unloading device according to claim 2, characterized in that: The second arm (2) comprises a second support frame (2-4), on which is arranged a second hinge plate (2-1) for hingedly connecting the third arm (3), a first hinge shaft for connecting the second and third section arm adjustment mechanism (6), a second hinge seat (2-5) for hingedly connecting the overall adjustment mechanism (10), a second roller (2-6) for supporting the unloading belt (9), and a first hinge seat (2-7) for hingedly connecting the first hinge support (1-1).

4. The unloading device according to claim 3, characterized in that: The third arm (3) comprises a third support frame (3-3), on which a third hinge plate (3-1) for hingedly connecting the second hinge plate (2-1), a second hinge shaft (3-2) for connecting the second and third stage arm adjustment mechanism (6), and a third roller (3-4) for supporting the unloading belt (9) are arranged.

5. The unloading device according to claim 4, characterized in that: The arm support also includes a fourth arm support (4) connected to an end of the third arm support (3) away from the second arm support (2), and the fourth arm support (4) includes a fourth support frame (4-6), and a fourth roller (4-8) for supporting the unloading belt (9) is arranged on the fourth support frame (4-6).

6. The unloading device according to claim 5, characterized in that: A baffle support (4-2) and a baffle adjustment mechanism (4-4) for driving the baffle support (4-2) to rotate are hingedly connected to the free end of the fourth arm support (4), and a discharge baffle (4-1) is arranged on the baffle support (4-2).

7. The unloading device according to claim 6, characterized in that: The first articulated shaft comprises a connecting rod articulated shaft (2-2) and a cylinder articulated shaft (2-3); the second and third section boom adjustment mechanism (6) comprises a pull rod (6-1), a connecting rod (6-2) and an adjusting cylinder (6-3); the first end of the pull rod (6-1) is articulated with the second articulated shaft (3-2); the second end of the pull rod (6-1) is articulated with the first end of the connecting rod (6-2); the second end of the connecting rod (6-2) is articulated with the connecting rod articulated shaft (2-2); the first end of the adjusting cylinder (6-3) is articulated with the middle part of the connecting rod (6-2); and the second end of the adjusting cylinder (6-3) is articulated with the cylinder articulated shaft (2-3).

8. The unloading device according to claim 1, characterized in that: It also comprises an arm support frame (11) for defining the folded position of the second arm frame (2).

9. The unloading device according to claim 1, characterized in that: A mesh cover (7) is arranged on the arm support.

10. A tomato harvester, characterized in that: A discharge device comprising the discharge device according to any one of claims 1 to 9.

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