A large-capacity grain recycling and turning device

Abstract

This utility model relates to a large-capacity grain recycling and turning hopper device, characterized in that: the hopper support is composed of a base frame and side frames; the base frame includes a bottom frame, two vertical downward support beams, two vertical upward support beams, and two diagonal reinforcing beams; the lower ends of the two vertical beams of the side frames are rotatably connected to the front beams of the base frame near the front and rear ends; the outer side of the hopper near the upper end is rotatably connected to the upper crossbeam of the side frame, forming the turning center of the hopper; the upper and lower ends of the front unloading drive cylinder are respectively connected between the front side of the hopper and the front part of the base frame near the inner end, and the upper and lower ends of the rear unloading drive cylinder are respectively connected between the rear side of the hopper and the rear part of the base frame near the inner end; the upper ends of the two diagonal braces are respectively in sliding engagement with the upper front and upper rear parts of the side frames of the hopper support; the lower ends of the two diagonal braces are respectively rotatably connected to the front and rear parts of the base frame near the inner end. This hopper device has high structural strength and is suitable for large-capacity grain unloading.

Description

Technical Field

[0001] This utility model belongs to the field of corn harvesters that harvest both ears and stalks, and relates to a grain recovery system, particularly a large-capacity grain recovery and turning hopper device. Background Technology

[0002] When harvesting corn using a corn harvester that harvests both ears and stalks, some kernels fall off after the ears are peeled by the peeling mechanism. These kernels are vibrated by a vibrating screen and fall into the kernel collection hopper. Then, an auger pushes them to the right side, where a conveyor chain rake transports them upwards into the right-side kernel hopper. The right-side kernel hopper has a tilting structure. The front of the hopper, near the discharge port, is hinged to the front frame of the hopper support. The hopper support consists of a bottom frame and a front frame. The lower end of the front frame is hinged to the front end of the bottom frame. The bottom frame is a square frame and is bolted to the harvester frame. The tilting of the hopper is driven by hydraulic cylinders on both sides, with diagonal bracing beams on both sides. The upper ends of the diagonal bracing beams are hinged to the upper part of the front frame of the hopper support, and the lower ends are connected to horizontal grooves on both sides of the bottom frame via sliding pins.

[0003] The existing tiltable grain hopper device has a volume of about 0.2m³, which is relatively small. When applied to large-capacity grain hoppers, its structural strength does not meet the requirements. In addition, due to the need for frequent grain unloading operations, the horizontal chute at the bottom is easily affected by the upper fan outlet, which can cause debris to accumulate and affect the smooth sliding of the inclined support beam, thus adversely affecting the tilting and unloading of grain. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by proposing a large-capacity grain recycling and turning hopper device.

[0005] The above-mentioned objective of this utility model is achieved through the following technical solution:

[0006] A large-capacity grain recycling and turning hopper device includes a grain hopper, two unloading drive cylinders, two inclined support beams, and a grain hopper support.

[0007] The grain hopper support is composed of a base frame and side frames. The base frame includes a square base frame, two downward vertical support beams, two upward vertical support beams, and two diagonal reinforcing beams. The upper ends of the two downward vertical support beams are welded to the lower end of the base frame near the front and rear sides, respectively. Bolt through holes are vertically arranged on the two downward vertical support beams along the left-right direction. The two upward vertical support beams are welded to the inner side of the base frame near the front and rear ends, respectively. Horizontal support tubes of equal height are vertically welded to the upper ends of the two upward vertical support beams. Bolt through holes are vertically arranged on the horizontal support tubes along the up-down direction. The two diagonal reinforcing beams are arranged parallel to each other on the base frame. Below the frame, the outer ends of two diagonal reinforcing beams are welded to the lower end of the bottom frame near the outer side, and the inner ends of the two diagonal reinforcing beams are welded to the outer sides of two vertical downward support beams near their lower ends. The grain hopper support is fixed to the harvester frame at multiple points through bolts installed in the bolt holes on the two vertical downward support beams and bolts installed in the bolt holes on the two vertical upward support beams. The side frame consists of two parallel vertical beams and an upper, middle, and lower crossbeam welded between the two vertical beams. The lower ends of the two vertical beams are rotatably connected to the front beam of the bottom frame near the front and rear ends, respectively.

[0008] The lower end of the grain hopper is closed and the upper end is open. The grain hopper is set in the upper position inside the bottom frame. The outer part of the grain hopper near the upper end is connected to the upper crossbeam of the side frame through two hinge components arranged coaxially in the front-back direction, which can rotate relative to each other and form the flipping center of the grain hopper.

[0009] Two unloading drive cylinders are respectively located at the front and rear of the grain hopper. The upper and lower ends of the unloading drive cylinder at the front can be rotatably connected between the front side of the grain hopper and the front part of the bottom frame near the inner end. The upper and lower ends of the unloading drive cylinder at the rear can be rotatably connected between the rear side of the grain hopper and the rear part of the bottom frame near the inner end.

[0010] Two diagonal bracing beams are respectively set at the front and rear of the grain hopper. The upper ends of the unloading drive cylinder at the front and the unloading drive cylinder at the rear are respectively slidably engaged with the upper front and upper rear sides of the side frame of the grain hopper support in the vertical direction. The lower ends of the unloading drive cylinder at the front and the unloading drive cylinder at the rear are respectively rotatably connected to the front and rear parts of the bottom frame near the inner end.

[0011] Furthermore, front inner hinge seats and rear inner hinge seats are welded to the inner ends of the front and rear beams of the bottom frame, respectively. Both the front and rear inner hinge seats are provided with hydraulic cylinder hinge holes and diagonal brace hinge holes. Front guide rail plates and rear guide rail plates are welded to the upper parts of the front and rear vertical beams of the side frame, respectively. Vertical sliding grooves are provided on both guide rail plates. A hydraulic cylinder connecting seat is fixed to the outer middle of the front and rear side walls of the grain hopper, and a hinge hole is provided on the hydraulic cylinder connecting seat. The upper cylinder rod end of the unloading drive hydraulic cylinder located at the front end is rotatably connected to the hinge hole on the hydraulic cylinder connecting seat on the front side of the grain hopper via a hinge shaft. The lower cylinder end of the unloading drive hydraulic cylinder located at the front end is hinged to the hydraulic cylinder hinge hole on the front inner hinge seat. The unloading drive cylinder at the rear end is rotatably connected to the hinge hole on the cylinder connecting seat at the rear of the grain hopper via a hinge shaft. The lower cylinder end of the unloading drive cylinder at the rear end is rotatably connected to the cylinder hinge hole on the rear inner hinge seat via a hinge shaft. The lower end of the diagonal brace at the front end is rotatably connected to the hinge hole on the front inner hinge seat via a hinge shaft. The upper end of the diagonal brace at the front end is slidably connected to the vertical groove on the front guide plate via a front sliding pin. The lower end of the diagonal brace at the rear end is rotatably connected to the hinge hole on the rear inner hinge seat via a hinge shaft. The upper end of the diagonal brace at the rear end is slidably connected to the vertical groove on the rear guide plate via a rear sliding pin.

[0012] In addition, multiple cushioning pads are fixed inside the lower and middle crossbeams of the side frame.

[0013] The advantages and positive effects of this utility model are as follows:

[0014] 1. This large-capacity grain recovery and turning grain hopper device achieves a reinforced and optimized design of the grain hopper support by adding two vertical downward support beams and two diagonal reinforcing beams to the lower part of the bottom frame, and two vertical upward support beams to the inner side. On the one hand, it greatly improves the structural strength of the grain hopper support, and on the other hand, it increases the connection points with the harvester frame, improving the connection strength between the grain hopper support and the frame. It can meet the usage requirements of the large-capacity grain recovery and turning grain hopper device, and the grain hopper volume can be increased to 0.32m³.

[0015] 2. This large-capacity grain recovery and turning hopper device changes the bottom horizontal sliding fit between the inclined support beam and the hopper to an upper vertical sliding fit, avoiding the influence of the top fan outlet of the harvester. This effectively prevents debris from accumulating in the chute, thus enabling the inclined support beam to slide smoothly. Attached Figure Description

[0016] Figure 1 This is a front view of the large-capacity grain recycling and turning hopper device of this utility model under normal harvesting operation;

[0017] Figure 2 This is an isometric view of the large-capacity grain recovery and turning hopper device of this utility model under normal harvesting operation. Figure 1 ;

[0018] Figure 3 This is an isometric view of the large-capacity grain recovery and turning hopper device of this utility model under normal harvesting operation. Figure 2 ;

[0019] Figure 4 This is a top view of the large-capacity grain recycling and turning hopper device of this utility model under normal harvesting operation;

[0020] Figure 5 This is a diagram showing the state of the large-capacity grain recycling and turning grain hopper device of this utility model during the intermediate stage of grain unloading.

[0021] Figure 6 This is a diagram showing the state of the large-capacity grain recycling and turning grain hopper device of this utility model in the unloading stage.

[0022] Figure 7 This is an installation diagram of the large-capacity grain recycling and turning grain hopper device of this utility model on a harvester. Detailed Implementation

[0023] The structure of this utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that these embodiments are descriptive and not limiting.

[0024] Please refer to a large-capacity grain recycling and tilting hopper device. Figures 1-7 The invention features a grain hopper 1, two unloading drive cylinders 2, two diagonal bracing beams 8, and a grain hopper support.

[0025] Grain hopper support:

[0026] The grain hopper support is used to support the grain hopper. The grain hopper support consists of a base frame and side frames 9. In this invention, the base frame is reinforced and includes a square base frame 6, two downward vertical support beams 4, two upward vertical support beams 3, and two diagonal reinforcing beams 5. The upper ends of the two downward vertical support beams are welded to the lower end of the base frame near the inner front and rear sides, respectively. Bolt through holes are vertically arranged on the two downward vertical support beams along the left-right direction. The two upward vertical support beams are welded to the inner side of the base frame near the front and rear ends, respectively. Horizontal support tubes of equal height are vertically welded to the upper ends of the two upward vertical support beams. Bolt through holes are vertically arranged on the horizontal support tubes along the up-down direction. The two diagonal reinforcing beams are arranged parallel to each other below the base frame. The outer ends of the two diagonal reinforcing beams are welded to the lower end of the base frame near the outer side, and the inner ends of the two diagonal reinforcing beams are welded to the outer sides of the two downward vertical support beams near their lower ends. The grain hopper support is fixedly connected to the harvester frame 15 at multiple points through bolts installed in the bolt holes on the two downward vertical support beams and bolts installed in the bolt holes on the two upward vertical support beams.

[0027] Front inner hinge seat 12 and rear inner hinge seat 12 are welded to the inner ends of the front beam and rear beam of the bottom frame, respectively. Both the front inner hinge seat and the rear inner hinge seat are provided with hydraulic cylinder hinge holes and diagonal brace beam hinge holes. Front outer hinge seat 12 and rear outer hinge seat 12 are welded to the outer beam of the bottom frame, respectively. Both the front outer hinge seat and the rear outer hinge seat are provided with side frame hinge holes.

[0028] The side frame consists of two parallel upright beams and three horizontal beams (upper, middle, and lower) welded between the two upright beams. The lower ends of the two upright beams are connected to two hinge holes in the side frame via hinge shafts, allowing the side frame to rotate around the two hinge shafts. A front guide plate 10 and a rear guide plate are welded to the upper parts of the front and rear upright beams of the side frame, respectively, and vertical grooves 11 are provided on both the front and rear guide plates.

[0029] Grain measure:

[0030] The grain hopper is mainly constructed from welded profiles and side panels, with a closed lower end and an open upper end. The grain hopper is positioned above the base frame. The outer side of the grain hopper, near the upper end, is rotatably connected to the upper crossbeam of the side frame via two hinged components 13 arranged coaxially in the front-back direction, forming the hopper's tilting center.

[0031] A hydraulic cylinder connecting seat 14 is fixed at the outer middle part of the front and rear side walls of the grain hopper, and a hinge hole is provided on the hydraulic cylinder connecting seat.

[0032] Unloading drive cylinder:

[0033] Two unloading drive cylinders are respectively located at the front and rear of the grain hopper. The upper cylinder rod end of the front unloading drive cylinder is rotatably connected to the hinge hole on the cylinder connecting seat on the front side of the grain hopper via a hinge shaft. The lower cylinder barrel end of the front unloading drive cylinder is rotatably connected to the cylinder hinge hole on the front inner hinge seat via a hinge shaft. The upper cylinder rod end of the rear unloading drive cylinder is rotatably connected to the hinge hole on the cylinder connecting seat on the rear side of the grain hopper via a hinge shaft. The lower cylinder barrel end of the rear unloading drive cylinder is rotatably connected to the cylinder hinge hole on the rear inner hinge seat via a hinge shaft. When both unloading drive cylinders extend simultaneously, the grain hopper can be rotated upwards and outwards around the tilting center. When the upper end of the grain hopper rotates to the downward position, smooth and rapid unloading of grain can be achieved.

[0034] Diagonal bracing beam:

[0035] Two diagonal bracing beams are respectively located at the front and rear of the grain hopper. The lower end of the front diagonal bracing beam is rotatably connected to the hinge hole on the front inner hinge seat via a hinge shaft, while the upper end of the front diagonal bracing beam is slidably connected to the vertical groove on the front guide plate via a front sliding pin. The lower end of the rear diagonal bracing beam is rotatably connected to the hinge hole on the rear inner hinge seat via a hinge shaft, while the upper end of the rear diagonal bracing beam is slidably connected to the vertical groove on the rear guide plate via a rear sliding pin.

[0036] Two diagonal bracing beams form a triangular connection structure with the base and side frames of the grain hopper support at the front and rear ends. As the grain hopper rotates, the connection angle can be adjusted, which strengthens the support and rotation of the grain hopper and ensures the structural stability of the large-capacity grain recycling and rotating grain hopper device.

[0037] In the above structure, multiple buffer pads 7 are fixed inside the lower and middle crossbeams of the side frame. Specifically, multiple nuts are embedded and welded along the front-to-back direction on both the middle and lower crossbeams to fix the rubber buffer pads. Countersunk holes are provided on the rubber buffer pads. A rubber buffer pad is installed on the inner side of the middle and lower crossbeams corresponding to the nut positions. The rubber buffer pads are fixed to the inner side of the corresponding crossbeams by screws installed in the countersunk holes and corresponding nuts. The function of setting the rubber buffer pads is to prevent the grain hopper from colliding with the side frame when it is retracted after unloading, thus playing a shock-absorbing role.

[0038] In the above structure, the sliding connection between the diagonal brace beam and the corresponding crossbeam of the bottom frame is not limited to the matching structure of sliding pin and long slide groove. It can also adopt the matching form of slider and slide rail, etc., as long as it can meet the requirement of relative sliding between the two within the set stroke range.

[0039] The terms "inner" and "outer" mentioned above are based on the center position of the harvester, while "front" and "rear" are based on the direction of travel of the harvester.

[0040] The working principle of this large-capacity grain recycling and tilting hopper device is as follows:

[0041] This large-capacity grain recovery and tilting hopper device uses the synchronous extension of the cylinder rods of two unloading drive cylinders to drive the hopper to tilt outwards. The tilting process consists of two stages. In the first stage, the hopper and the side frame of the hopper support tilt outwards synchronously. During this process, the sliding pins at the upper ends of the two diagonal support beams gradually slide downwards along the corresponding vertical grooves. When the sliding pins reach the limit contact with the lower end of the corresponding vertical groove, the first stage ends, and the side frame stops tilting. In the second stage, as the cylinder rods of the two unloading drive cylinders continue to extend, the hopper tilts around the hinge shaft at its upper outer end, causing the upper end of the hopper to tilt to the lower part, allowing for smooth and rapid unloading through the upper port. After unloading is completed, the cylinder rods of the two unloading drive cylinders gradually retract, first tilting the hopper back to the inside of the side frame, and then the hopper rotates back to the vertical position with the side frame, completing the entire unloading operation.

[0042] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A large-capacity grain recovery and turning hopper device, comprising a grain hopper, two unloading drive cylinders, two inclined support beams, and a grain hopper support; characterized in that: The grain hopper support is composed of a base frame and side frames. The base frame includes a square base frame, two downward vertical support beams, two upward vertical support beams, and two diagonal reinforcing beams. The upper ends of the two downward vertical support beams are welded to the lower end of the base frame near the front and rear sides, respectively. Bolt through holes are vertically arranged on the two downward vertical support beams along the left-right direction. The two upward vertical support beams are welded to the inner side of the base frame near the front and rear ends, respectively. Horizontal support tubes of equal height are vertically welded to the upper ends of the two upward vertical support beams. Bolt through holes are vertically arranged on the horizontal support tubes along the up-down direction. The two diagonal reinforcing beams are arranged parallel to each other on the base frame. Below the frame, the outer ends of two diagonal reinforcing beams are welded to the lower end of the bottom frame near the outer side, and the inner ends of the two diagonal reinforcing beams are welded to the outer sides of two vertical downward support beams near their lower ends. The grain hopper support is fixed to the harvester frame at multiple points through bolts installed in the bolt holes on the two vertical downward support beams and bolts installed in the bolt holes on the two vertical upward support beams. The side frame consists of two parallel vertical beams and an upper, middle, and lower crossbeam welded between the two vertical beams. The lower ends of the two vertical beams are rotatably connected to the front beam of the bottom frame near the front and rear ends, respectively. The lower end of the grain hopper is closed and the upper end is open. The grain hopper is set in the upper position inside the bottom frame. The outer part of the grain hopper near the upper end is connected to the upper crossbeam of the side frame through two hinge components arranged coaxially in the front-back direction, which can rotate relative to each other and form the flipping center of the grain hopper. Two unloading drive cylinders are respectively located at the front and rear of the grain hopper. The upper and lower ends of the unloading drive cylinder at the front can be rotatably connected between the front side of the grain hopper and the front part of the bottom frame near the inner end. The upper and lower ends of the unloading drive cylinder at the rear can be rotatably connected between the rear side of the grain hopper and the rear part of the bottom frame near the inner end. Two diagonal bracing beams are respectively set at the front and rear of the grain hopper. The upper ends of the unloading drive cylinder at the front and the unloading drive cylinder at the rear are respectively slidably engaged with the upper front and upper rear sides of the side frame of the grain hopper support in the vertical direction. The lower ends of the unloading drive cylinder at the front and the unloading drive cylinder at the rear are respectively rotatably connected to the front and rear parts of the bottom frame near the inner end.

2. The large capacity kernel recovery inverting bin apparatus of claim 1 wherein: Front and rear inner hinge seats are welded to the inner ends of the front and rear beams of the base frame, respectively. Both the front and rear inner hinge seats have hydraulic cylinder hinge holes and diagonal brace hinge holes. Front and rear guide rail plates are welded to the upper parts of the front and rear vertical beams of the side frame, respectively. Vertical grooves are provided on both the front and rear guide rail plates. A hydraulic cylinder connecting seat is fixed to the outer middle of the front and rear side walls of the grain hopper, and a hinge hole is provided on the hydraulic cylinder connecting seat. The upper cylinder rod end of the unloading drive cylinder at the front end is rotatably connected to the hinge hole on the hydraulic cylinder connecting seat on the front side of the grain hopper via a hinge shaft. The lower cylinder end of the unloading drive cylinder at the front end is connected to the hydraulic cylinder hinge hole on the front inner hinge seat via a hinge shaft. Rotary connections: The upper cylinder rod end of the unloading drive cylinder at the rear end is rotatably connected to the hinge hole on the cylinder connecting seat on the rear side of the grain hopper via a hinge shaft; the lower cylinder end of the unloading drive cylinder at the rear end is rotatably connected to the cylinder hinge hole on the rear inner hinge seat via a hinge shaft; the lower end of the diagonal brace at the front end is rotatably connected to the hinge hole on the front inner hinge seat via a hinge shaft; the upper end of the diagonal brace at the front end is slidably connected to the vertical groove on the front guide plate via a front sliding pin; the lower end of the diagonal brace at the rear end is rotatably connected to the hinge hole on the rear inner hinge seat via a hinge shaft; the upper end of the diagonal brace at the rear end is slidably connected to the vertical groove on the rear guide plate via a rear sliding pin.

3. The large capacity kernel recovery inverting grain bucket apparatus of claim 1, wherein: Multiple cushioning pads are fixed inside the lower and middle crossbeams of the side frame.

Images