Grain unloading tensioning structure and corn machine

Abstract

The utility model relates to the field of agricultural machinery, in particular to a grain unloading tensioning structure and a corn machine. The grain unloading tensioning structure comprises an adjusting device used for moving the position of the driving wheel or the driven wheel. The adjusting device comprises a transmission structure and a fixing structure; the fixing structure is used for positioning the driving wheel or the driven wheel; the transmission structure is used for driving the fixing structure to move. The grain unloading device has the advantages that the transmission structure drives the fixing structure to move, so that the driving wheel or the driven wheel is driven to move, and a grain unloading belt or a chain wheel is tensioned. The whole structure does not need to be provided with a tensioning wheel independently, the structure is simple, the size is small, the space utilization rate is improved, cost is low, and the transformation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a grain unloading tensioning structure and a corn machine. Background Art

[0002] Corn, as a staple food crop, is widely cultivated in all regions of my country, with a total cultivated area of approximately 35 million hectares nationwide. To ensure food security, the entire nation attaches great importance to agriculture and grain production. The grain harvest is the result of months of hard work by farmers, and every grain should be stored in the warehouse. After peeling, the husks contain kernels, which are screened out by an augers or vibrating screens for recovery. Existing corn recycling machines have many forms of recovery, including pull-out recovery chute structures, dual-purpose kernel lifting structures, belt-driven mechanical kernel unloading structures controlled by a kernel unloading clutch handle, and hydraulic kernel unloading structures controlled by a hydraulic motor. Overall, the pull-out recovery chute is laborious to manually drag, the dual-purpose kernel lifting structure is costly and complex, and the mechanical kernel unloading belt is prone to linkage. Hydraulic kernel unloading has certain advantages in the market.

[0003] Equipped with a hydraulic grain unloading structure, due to the compact structure of the whole machine, the center distance between the two transmission mechanisms is small, and the space is limited, the regular tensioning or automatic tensioning structure of the transmission cannot be arranged, which is easy to interfere with surrounding parts.

[0004] The traditional transmission structure generally includes a driving wheel, a driven wheel and a tensioning wheel. The tensioning wheel is tensioned on the loose side of the transmission chain through regular tensioning, automatic tensioning or the use of a chain support plate (or pressure plate) structure, so that the driving wheel can effectively transfer power to the driven wheel, thereby driving the passive device to operate.

[0005] Such a transmission structure requires a tensioning wheel for tensioning, and a location for installing the tensioning wheel requires space for the tensioning wheel to move, which increases the overall volume and reduces space utilization. Utility Model Content

[0006] The purpose of the utility model is to provide a grain unloading tensioning structure and a corn machine, which can solve the above technical problems.

[0007] The embodiment of the present utility model is achieved as follows:

[0008] In a first aspect, the utility model provides a grain unloading tensioning structure, which includes an adjusting device for moving the position of a driving wheel or a driven wheel;

[0009] The adjusting device includes a transmission structure and a fixing structure;

[0010] The fixing structure is used to position the driving wheel or the driven wheel;

[0011] The transmission structure is used to drive the fixed structure to move.

[0012] In a preferred embodiment, the transmission structure includes a fixed seat, a first hinge seat, a second hinge seat, a third hinge seat, and an adjustment screw;

[0013] The fixed structure is hinged to the fixed seat through the first hinge seat;

[0014] One end of the adjustment screw is hinged to the fixed seat through the second hinge seat;

[0015] The other end of the adjustment screw is hinged to the fixed structure through the third hinge seat;

[0016] The adjustment screw is slidably connected to the third hinge seat.

[0017] In a preferred embodiment, an adjustment nut is provided on the adjustment screw, and the adjustment nut is used to adjust the connection position between the third hinge seat and the adjustment screw.

[0018] In a preferred embodiment, an elastic member is provided between the adjustment nut and the third hinge seat.

[0019] In a preferred embodiment, the elastic member is a compression spring.

[0020] In a preferred embodiment, the fixed structure includes a fixed mounting plate, and mounting holes for cooperating with fixing bolts are provided on the fixed mounting plate.

[0021] In a preferred embodiment, the transmission structure includes a first guiding structure, a moving screw, a moving nut, and a first power device;

[0022] The moving nut is in threaded connection with the moving screw, and the first power device is connected to one end of the moving screw to drive the moving screw to rotate;

[0023] The moving nut is fixedly arranged on the fixed structure, and the fixed structure is connected to the first guiding structure.

[0024] In a preferred embodiment, the transmission structure includes a second guiding structure, a second power device, a transmission gear, and a transmission rack;

[0025] The fixed structure is connected to the second guiding structure and can move along a defined trajectory under the action of the second guiding structure;

[0026] The transmission rack is fixedly connected to the fixed structure, the transmission gear meshes with the transmission rack, and the second power device is connected to the transmission gear and can drive the transmission gear to rotate.

[0027] In a preferred embodiment, the transmission structure includes a stepper motor and a push rod;

[0028] One end of the push rod is connected to the stepper motor, and the other end of the push rod abuts against the fixed structure for pushing the fixed structure to move.

[0029] In a second aspect, the present utility model further provides a corn machine, which includes the unloading grain tensioning structure described in any one of the above.

[0030] The beneficial effects of the embodiments of the present utility model are as follows:

[0031] The fixed structure is driven to move through the transmission structure, thereby driving the driving wheel or the driven wheel to move, so as to realize the tensioning of the unloading grain belt or the sprocket.

[0032] The overall structure does not require a separate tensioning wheel, has a simple structure, a small volume, improves the space utilization rate, has a low cost, and reduces the transformation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a schematic structural diagram of the unloading grain tensioning structure on the corn machine provided by the embodiment of the present utility model;

[0035] Figure 2 For Figure 1 the three-dimensional structural diagram;

[0036] Figure 3 For Figure 1 the three-dimensional structural diagram from another perspective.

[0037] ICON:

[0038] 1 - fixed seat; 2 - adjusting screw; 3 - fixed mounting plate; 4 - first hinge seat; 5 - second hinge seat; 6 - third hinge seat; 7 - adjusting nut; 8 - compression spring; 9 - first hinge shaft; 10 - second hinge shaft; 11 - third hinge shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0043] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only 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 inclined.

[0044] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] The following will, in conjunction with Figures 1 to 3 , elaborate on some embodiments of the present utility model. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0046] In a first aspect, the present utility model provides a grain unloading tensioning structure, which includes an adjusting device for moving the position of the driving wheel or the driven wheel; the adjusting device includes a transmission structure and a fixing structure; the fixing structure is used to position the driving wheel or the driven wheel; the transmission structure is used to drive the fixing structure to move.

[0047] In this embodiment, the setting of the adjusting device can adjust the position of the driving wheel or the driven wheel of the belt drive structure or the sprocket drive structure, so as to achieve the tensioning of the belt drive or the connecting drive.

[0048] Specifically, in this embodiment, through the setting of the transmission structure, the fixing structure is driven to move, thereby driving the driving wheel or the driven wheel arranged on the fixing structure to move, so as to achieve the purpose of tensioning the belt or the sprocket.

[0049] More specifically, in this embodiment, the way that the transmission structure drives the fixing structure to move can be linear movement or swinging, etc., as long as it can achieve the purpose of tensioning the belt or the sprocket by moving the position of the driving wheel or the driven wheel.

[0050] In this embodiment, the power of the transmission structure can be manual power, or mechanical power such as a motor, a hydraulic pump, a cylinder, etc., as long as it can apply the power of moving to the fixing structure through the transmission structure.

[0051] In a preferred embodiment, the transmission structure includes a fixed seat 1, a first hinge seat 4, a second hinge seat 5, a third hinge seat 6 and an adjusting screw 2; the fixing structure is hinged to the fixed seat 1 through the first hinge seat 4; one end of the adjusting screw 2 is hinged to the fixed seat 1 through the second hinge seat 5; the other end of the adjusting screw 2 is hinged to the fixing structure through the third hinge seat 6; the adjusting screw 2 is slidably connected with the third hinge seat 6.

[0052] In this embodiment, the transmission structure is divided into two parts, namely the fixed seat 1 and the adjusting screw 2. The adjusting screw 2 is hinged to the fixed seat 1 through the second hinge seat 5. At the same time, the fixed seat 1 is hinged to the fixed structure through the first hinge seat 4, and the adjusting screw 2 is hinged to the fixed structure through the third hinge seat 6, thus forming a mutually hinged triangular structure. The angle of the triangle is adjusted by the sliding between the third hinge seat 6 and the adjusting screw 2 to realize the swing of the fixed structure, and then the position of the fixed structure is adjusted. Finally, the position of the driving wheel or the driven wheel arranged on the fixed structure is adjusted to achieve the purpose of tensioning the belt or the sprocket.

[0053] Specifically, in this embodiment, the first hinge seat 4 is fixedly arranged on the fixed seat 1. A first hinge hole is arranged on the first hinge seat 4, and a first rotating hole is arranged on the fixed structure. The first hinge hole and the first rotating hole are coaxially arranged. After the first hinge shaft 9 passes through the first hinge hole and the first rotating hole, it is positioned at both ends by nuts or split pins to prevent axial movement, thereby realizing the hinge between the fixed seat 1 and the fixed structure.

[0054] More specifically, in this embodiment, the width of the first hinge seat 4 is the same as or slightly shorter than the width of the fixed seat 1, so that the first hinge seat 4 forms a rod-shaped hinge structure, thus forming a triangular stable structure with the point hinge of the second hinge seat 5, ensuring the stability of the fixed structure on the fixed seat 1.

[0055] Specifically, in this embodiment, the second hinge seat 5 is fixedly arranged on the fixed seat 1. A second hinge hole is arranged on the second hinge seat 5, and a second rotating hole is arranged at the end of the adjusting screw 2. The second hinge hole and the second rotating hole are coaxially arranged. After the second hinge shaft 10 passes through the second hinge hole and the second rotating hole, it is positioned at both ends by nuts or split pins to prevent axial movement, thereby realizing the hinge between the fixed seat 1 and the adjusting screw 2.

[0056] Specifically, in this embodiment, a sliding hole and a third hinge hole are arranged on the third hinge seat 6. The axes of the sliding hole and the third hinge hole are perpendicular to each other. The third hinge seat 6 is slidably connected to the adjusting screw 2 through the sliding hole. A third rotating hole is arranged on the fixed structure. The third hinge hole and the third rotating hole are coaxially arranged. After the third hinge shaft 11 passes through the third hinge hole and the third rotating hole, it is positioned at both ends by nuts or split pins to prevent axial movement, thereby realizing the hinge between the adjusting screw 2 and the fixed structure.

[0057] It can be understood that in this embodiment, the arrangement manners of the first hinge seat 4, the second hinge seat 5 and the third hinge seat 6 can be the above manners, but they are not limited to the arrangement manners described above, and they can also be other arrangement manners, such as ball connection, etc. As long as they can achieve rotational connection with each other, the fixed structure can be driven to swing by adjusting the screw rod 2.

[0058] In a preferred embodiment, an adjusting nut 7 is arranged on the adjusting screw rod 2, and the adjusting nut 7 is used to adjust the connection position between the third hinge seat 6 and the adjusting screw rod 2.

[0059] In this embodiment, by arranging the adjusting nut 7, the position of the third hinge seat 6 on the adjusting screw rod 2 is adjusted, so as to achieve the effect of positioning the position of the tensioned driving wheel or driven wheel.

[0060] Specifically, in this embodiment, the number of the adjusting nuts 7 is two.

[0061] By adopting the double-nut arrangement manner, the stability of the fixing of the adjusting nut 7 on the adjusting screw rod 2 can be more effectively ensured, and the loosening of the adjusting nut 7 caused by the vibration of the corn harvester can be avoided, so as to avoid the loosening of the belt or sprocket, and the stability of the belt drive or sprocket drive is ensured.

[0062] In a preferred embodiment, an elastic member is arranged between the adjusting nut 7 and the third hinge seat 6.

[0063] In this embodiment, by arranging the elastic member, the influence of the vibration of the corn harvester on the adjusting nut 7 can be reduced, so as to ensure the stability of the adjusting nut 7 on the adjusting screw rod 2, further ensure the stability of adjusting the position of the driving wheel or driven wheel, and ensure the stability of the belt drive or sprocket drive.

[0064] In a preferred embodiment, the elastic member is a compression spring 8.

[0065] Specifically, in this embodiment, the elastic member is a compression spring 8, which is sleeved on the adjusting screw rod 2 and abuts against the adjusting nut 7 and the third hinge seat 6 at both ends respectively.

[0066] It can be understood that in this embodiment, the elastic member is a compression spring 8, but it is not limited to the compression spring 8, and it can also be other elastic structures, such as torsion springs, elastic sheets, etc. As long as they can play a role in buffering and shock absorption.

[0067] In a preferred embodiment, the fixed structure includes a fixed mounting plate 3, and mounting holes for cooperating with the fixing bolts are arranged on the fixed mounting plate 3.

[0068] In this embodiment, the motor is fixedly arranged on the fixed mounting plate 3 through the cooperation of the fixing bolts and the mounting holes. Through holes are provided on the fixed mounting plate 3, and the driving shaft of the motor passes through the through holes to connect to the driving wheel, driving the driving wheel to rotate, thereby realizing belt drive or sprocket drive.

[0069] In this embodiment, parameters such as the shape and thickness of the fixed mounting plate 3 are set according to the specific model and weight of the motor to make them match, so as to ensure the stability of the motor.

[0070] In a preferred embodiment, the transmission structure includes a first guiding structure, a moving screw, a moving nut, and a first power device; the moving nut is threadedly connected to the moving screw, and the first power device is connected to one end of the moving screw to drive the moving screw to rotate; the moving nut is fixedly arranged on the fixed structure, and the fixed structure is connected to the first guiding structure.

[0071] In this embodiment, the guiding track of the first guiding structure is arranged on the outer wall of the corn harvester, and a guiding groove is provided on the fixed structure. The guiding track cooperates with the guiding groove to form the first guiding structure, which limits the moving gauge of the fixed structure.

[0072] In this embodiment, the transmission structure is a threaded screw structure, and the first power device is a driving motor, which drives the moving screw to rotate, thereby driving the moving nut to move linearly, and then driving the fixed structure to move along the defined trajectory of the first guiding structure, and finally driving the driving wheel or the driven wheel to move, so as to achieve the purpose of tensioning the belt of the belt drive or the sprocket of the sprocket drive.

[0073] In a preferred embodiment, the transmission structure includes a second guiding structure, a second power device, a transmission gear, and a transmission rack; the fixed structure is connected to the second guiding structure and can move along a defined trajectory under the action of the second guiding structure; the transmission rack is fixedly connected to the fixed structure, the transmission gear meshes with the transmission rack, and the second power device is connected to the transmission gear and can drive the transmission gear to rotate.

[0074] In this embodiment, the specific structure and setting method of the second guiding structure can be the same as those of the first guiding structure, that is, the guiding track is arranged on the outer wall of the corn harvester, and a guiding groove is provided on the fixed structure, or it can be other guiding methods, such as guiding through guide wheels, etc.

[0075] In this embodiment, the transmission structure is a gear-rack drive.

[0076] Specifically, in this embodiment, the second power device is a driving motor, which drives the transmission gear to rotate, and then drives the transmission rack to move linearly, further driving the fixed structure to move along the trajectory defined by the second guiding structure, and finally driving the driving wheel or the driven wheel to move, so as to achieve the purpose of tensioning the belt of the belt drive or the sprocket of the sprocket drive.

[0077] In this embodiment, the transmission rack may not be provided, but a tooth structure may be directly provided on the fixed structure to engage with the transmission gear, and the transmission mode of the gear and rack can also be realized.

[0078] In a preferred embodiment, the transmission structure includes a stepper motor and a push rod; one end of the push rod is connected to the stepper motor, and the other end of the push rod abuts against the fixed structure for pushing the fixed structure to move.

[0079] In this embodiment, a rotating shaft is provided on the outer wall of the corn harvester, the fixed structure is rotatably connected to the outer wall of the corn harvester through the rotating shaft, the stepper motor is fixedly arranged on the outer wall of the corn harvester, and the end of the push rod abuts against one end of the fixed structure. The stepper motor can drive the push rod to move axially, and the push rod drives the fixed structure to rotate around the rotating shaft, so as to realize the movement of the driving wheel or the driven wheel arranged on the fixed structure and realize the tensioning of the belt or the sprocket.

[0080] It should be noted that the setting method of the transmission structure can be the above several methods, but it is not limited to the above several setting methods, as long as it can realize the way of moving the fixed structure.

[0081] In a second aspect, the present invention also provides a corn harvester, which includes the unloading grain tensioning structure described in any one of the above.

[0082] In this embodiment, the unloading grain tensioning structure on the corn harvester is connected to the motor, that is, the motor is fixedly arranged on the fixed structure, and the driving wheel is connected to the motor.

[0083] The rotation of the motor drives the driving wheel to rotate to realize the transmission of the belt or the sprocket, and the movement of the motor drives the movement of the driving wheel to realize the tensioning of the belt or the sprocket.

[0084] The beneficial effects of the embodiments of the present invention are:

[0085] The transmission structure drives the fixed structure to move, thereby driving the driving wheel or the driven wheel to move, and realizing the tensioning of the unloading grain belt or the sprocket.

[0086] The overall structure does not need to be provided with a tensioning wheel separately, has a simple structure, a small volume, improves the space utilization rate, has a low cost, and reduces the transformation difficulty.

[0087] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A grain unloading tension structure, characterized in that, It includes an adjusting device for moving the position of the driving wheel or the driven wheel; The adjusting device includes a transmission structure and a fixing structure; The fixing structure is used to position the driving wheel or the driven wheel; The transmission structure is used to drive the fixing structure to move.

2. The grain unloading tension structure according to claim 1, characterized in that, The transmission structure includes a fixed seat, a first hinge seat, a second hinge seat, a third hinge seat and an adjusting screw; The fixing structure is hinged to the fixed seat through the first hinge seat; One end of the adjusting screw is hinged to the fixed seat through the second hinge seat; The other end of the adjusting screw is hinged to the fixing structure through the third hinge seat; The adjusting screw is slidably connected with the third hinge seat.

3. The grain unloading tension structure according to claim 2, characterized in that, An adjusting nut is arranged on the adjusting screw, and the adjusting nut is used to adjust the connection position between the third hinge seat and the adjusting screw.

4. The grain unloading tension structure according to claim 3, wherein An elastic member is arranged between the adjusting nut and the third hinge seat.

5. The grain unloading tension structure according to claim 4, wherein, The elastic member is a compression spring.

6. The unloading grain tensioning structure according to claim 1, characterized in that The fixing structure includes a fixed mounting plate, and mounting holes for cooperating with fixing bolts are arranged on the fixed mounting plate.

7. The grain unloading tension structure according to claim 1, characterized in that, The transmission structure includes a first guiding structure, a moving screw, a moving nut and a first power device; The moving nut is in threaded connection with the moving screw, and the first power device is connected to one end of the moving screw for driving the moving screw to rotate; The moving nut is fixedly arranged on the fixing structure, and the fixing structure is connected to the first guiding structure.

8. The unloading grain tensioning structure according to claim 1, characterized in that, The transmission structure includes a second guiding structure, a second power device, a transmission gear and a transmission rack; The fixing structure is connected to the second guiding structure and can move along a defined trajectory under the action of the second guiding structure; The transmission rack is fixedly connected to the fixing structure, the transmission gear meshes with the transmission rack, and the second power device is connected to the transmission gear and can drive the transmission gear to rotate.

9. The unloading grain tensioning structure according to claim 1, characterized in that The transmission structure includes a stepping motor and a push rod; One end of the push rod is connected to the stepping motor, and the other end of the push rod abuts against the fixing structure for pushing the fixing structure to move.

10. A corn machine, characterized in that, It includes the unloading grain tensioning structure according to any one of claims 1-9.

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