Grain arrangement mechanism for grain distribution vehicle and grain distribution vehicle
By installing a rotatable grain support on the grain distribution vehicle, the problem of conical grain piles being unfavorable for leveling grain was solved, achieving efficient and level grain loading and improving grain storage efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOGRAIN CHENGDU STORAGE RESEARCH INSTITUTE CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-12
AI Technical Summary
The cone-shaped grain pile formed after the existing grain distribution vehicle finishes distributing the grain is not conducive to the subsequent operation of the grain leveling vehicle, resulting in low grain storage efficiency.
A rotatable grain-setting bracket is installed at the front of the grain distribution vehicle's frame. The bracket is then rotated to the grain-setting station using a telescopic rod to level the top of the conical grain pile, achieving initial leveling.
It improved the efficiency of grain loading, reduced the difficulty of subsequent grain leveling operations, and enhanced the flexibility and stability of grain surface leveling.
Smart Images
Figure CN224226213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain loading equipment, and in particular to a grain loading mechanism and a grain loading vehicle for use in grain loading vehicles. Background Technology
[0002] In grain storage, bulk grain is usually stored in grain silos in the form of grain piles. When bulk grain is put into the silo, a grain distribution vehicle is required. The grain distribution vehicle is essentially a belt conveyor. Its structure is as disclosed in patent document CN216917287U, which describes a bulk grain distribution vehicle for flat warehouses and its frame. The grain distribution vehicle includes a conveyor frame with a traveling mechanism at the bottom, i.e., the grain distribution vehicle frame. The conveyor frame is equipped with a belt conveyor mechanism for conveying the corresponding bulk grain from back to front and from bottom to top. The belt conveyor mechanism includes a frame extending in the front-back direction. Belt reversing rollers are rotatably mounted at the front and rear ends of the frame. One of the belt reversing rollers is a motor-driven drive roller. A conveyor belt is wound around the belt reversing roller. The conveyor belt includes an upper conveyor belt located above the belt reversing roller and a lower conveyor belt located below the belt reversing roller. A belt idler roller for supporting the upper conveyor belt is also provided in the middle of the frame. The pitch angle of the belt conveyor mechanism is adjustable. Specifically, the pitch angle adjustment structure is as follows: the rear end of the mechanism frame is hinged to the conveyor frame, and an angle adjustment cylinder for adjusting the pitch angle of the conveyor frame is provided between the conveyor frame and the mechanism frame.
[0003] In operation, bulk grain is conveyed from back to front and from bottom to top via a belt conveyor. After being discharged from the conveyor belt's outlet, it falls into the grain silo, forming a grain pile that is wider at the bottom than at the top. After one grain distribution point is completed, the traveling mechanism moves the grain distribution cart to a different position, preparing for the next distribution point. The problem with existing grain distribution carts is that after each distribution point, a cone-shaped grain pile (wider at the bottom) is formed. During subsequent storage operations, a leveling cart is needed to level the top surface of the pile. However, in current technology, the cone angle of each pile is too small, which is not conducive to the leveling operation of the leveling cart. Utility Model Content
[0004] To overcome the shortcomings of existing grain distribution vehicles, such as the conical grain pile formed during grain distribution making subsequent grain leveling operations difficult, the technical problem to be solved by this utility model is to provide a grain leveling mechanism and a grain distribution vehicle that can initially level the tip of the grain pile after grain distribution.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] The grain-arranging mechanism for a grain distribution vehicle includes a grain-arranging bracket and a telescopic rod. One end of the grain-arranging bracket is hinged to the front end of the mechanism frame of the grain distribution vehicle, with the hinge axis parallel to the width direction of the conveyor belt on the mechanism frame. The fixed end of the telescopic rod is hinged to the mechanism frame, and the telescopic end is hinged to the grain-arranging bracket. The grain-arranging bracket, driven by the telescopic rod, has a retracted position that rotates upward to a vertical state and a grain-arranging position that rotates forward to a horizontal state. When the grain-arranging bracket is in the retracted position, its middle part can form a clearance for the grain on the conveyor belt to pass through.
[0007] Furthermore, the grain support is a portal frame structure consisting of a left support arm, a right support arm, and a front support arm, with the ends of the left and right support arms away from the front support arm hinged to the two sides of the front end of the frame.
[0008] Furthermore, the left and right support arms are respectively hinged to the frame via a linkage mechanism. The linkage mechanism includes a first link and a support arm link, both of which are hinged to the frame at one end, and a second link hinged between the other ends of the two. The ends of the left and right support arms away from the front support arm are fixed to the support arm link. The telescopic end of the telescopic rod is hinged to the hinge axis of the first and second links.
[0009] Furthermore, a transverse transmission rod is rotatably connected between the hinge shafts of the first and second links of the left and right linkage mechanisms. The fixed end of the telescopic rod is hinged to the center of the bottom of the mechanism frame, and the telescopic end of the telescopic rod is rotatably connected to the middle of the transverse transmission rod.
[0010] Furthermore, the telescopic rod is a hydraulic cylinder or an electric push rod.
[0011] Furthermore, both the left and right support arms are equipped with grain straightening rollers, which are located on the lower side of the grain straightening support when it is in the grain straightening position.
[0012] The grain distribution vehicle includes a conveyor frame with a walking mechanism at the bottom, a belt conveyor mechanism on the conveyor frame, the belt conveyor mechanism including a main support and a mechanism frame at the front end of the main support, a conveyor belt for conveying materials from back to front and from bottom to top on the mechanism frame, and the aforementioned grain-setting mechanism for the grain distribution vehicle at the front end of the mechanism frame.
[0013] Furthermore, the walking mechanism includes four wheels capable of actively steering and moving.
[0014] Furthermore, the rear end of the main support is rotatably connected to the conveyor frame, and its pitch angle can be adjusted by the pitch adjustment mechanism.
[0015] Furthermore, the pitch adjustment mechanism includes triangular support frames disposed on both sides of the middle of the main support frame, and an adjustment cylinder hinged between the top of the triangular support frame and the front end of the conveyor frame. Pull ropes are also connected to the top of the triangular support frame and the front and rear ends of the belt conveyor mechanism.
[0016] The beneficial effects of this utility model are as follows: By adding a rotatable grain-forming bracket to the front end of the grain distribution vehicle's frame, the grain-forming bracket is in the retracted position during normal grain distribution operations. At this time, the grain-forming bracket will not affect the normal conveying of bulk grain on the conveyor belt, and the bulk grain can be smoothly thrown into the grain bin via the conveyor belt. After the grain distribution at a distribution point is completed, the bulk grain will form a cone-shaped grain pile. At this time, the grain-forming bracket can be rotated to the grain-forming position using a telescopic rod, and then the grain distribution vehicle can be moved. The top of the cone-shaped grain pile can be smoothed using the grain-forming bracket, achieving preliminary leveling of the cone-shaped grain pile. This is beneficial for the subsequent leveling operation of the grain leveling vehicle and improves the efficiency of grain loading. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of the grain-forming mechanism of this utility model;
[0018] Figure 2 This is a structural schematic diagram of the grain distribution vehicle of this utility model;
[0019] Figure 3 yes Figure 2 A magnified view of section A.
[0020] The markings in the diagram are as follows: 1-Grain support frame, 2-Telescopic rod, 3-Mechanical frame, 4-Conveyor belt, 5-Conveyor frame, 6-Main support frame, 7-Walking wheel, 8-Pitch adjustment mechanism, 9-Pull rope, 11-Left support arm, 12-Right support arm, 13-Front support arm, 14-First connecting rod, 15-Support arm connecting rod, 16-Second connecting rod, 17-Transverse transmission rod, 18-Grain roller, 81-Triangular support frame, 82-Adjusting cylinder. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings.
[0022] It should be noted that if this utility model contains directional indicators such as up, down, left, right, front, and back, these are used to describe the relative positional relationships between components and are not specific references to the absolute positions of related components or the positional relationships between components. They are only used to explain the relative positional relationships and movement of components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly. If this utility model contains terms related to quantity, such as "many," "multiple," or "several," these specifically refer to two or more.
[0023] like Figure 1 , Figure 3 As shown, the present invention provides a grain-arranging mechanism for a grain distribution vehicle, comprising a grain-arranging support 1 and a telescopic rod 2. One end of the grain-arranging support 1 is hinged to the front end of the mechanism frame 3 of the grain distribution vehicle, and the hinge axis is parallel to the width direction of the conveyor belt 4 on the mechanism frame 3. The fixed end of the telescopic rod 2 is hinged to the mechanism frame 3, and the telescopic end is hinged to the grain-arranging support 1. The grain-arranging support 1 has a retracted position that rotates upward to a vertical state and a grain-arranging position that rotates forward to a horizontal state under the drive of the telescopic rod 2. When the grain-arranging support 1 is in the retracted position, a clearance opening can be formed in the middle for the grain on the conveyor belt 4 to pass through.
[0024] The working process of this utility model is as follows: During normal grain distribution using the grain distribution vehicle, the grain-forming support 1 is in the retracted position. At this time, the grain-forming support 1 will not affect the normal conveying of bulk grain on the conveyor belt 4. The bulk grain can be smoothly thrown into the grain bin via the conveyor belt 4. After the grain distribution at a distribution point is completed, the bulk grain will form a conical grain pile. At this time, the telescopic rod 2 can be used to drive the grain-forming support 1 to rotate to the grain-forming position. Then, the grain distribution vehicle is moved, and the grain-forming support 1 is used to smooth the top of the conical grain pile, achieving preliminary leveling of the conical grain pile. The reason why this utility model adds a grain-forming mechanism to level the grain surface instead of directly using the front end of the mechanism frame 3 is that in the final stage of grain distribution, the belt conveyor mechanism on the grain distribution vehicle will be in a state with a large pitch angle, making it impossible to level the top of the conical grain pile. Furthermore, if grain enters the belt conveyor mechanism, it will affect the normal operation of the conveyor belt 4, and subsequent cleaning will be more troublesome. Adding a separate grain-forming support 1 that can be rotated to a horizontal state to level the grain surface can improve the leveling effect of the grain surface.
[0025] To ensure the structural strength of the grain straightening support 1, the preferred embodiment of this invention is that the grain straightening support 1 is a portal frame structure composed of a left support arm 11, a right support arm 12, and a front support arm 13. The ends of the left support arm 11 and the right support arm 12 away from the front support arm 13 are hinged to the two sides of the front end of the mechanism frame 3. The entire grain straightening support 1 can be welded from structural steel and simultaneously connected to the two sides of the front end of the mechanism frame 3, resulting in a stable and reliable structure. During the grain straightening process, the grain spreading cart can be moved left and right, using the left support arm 11 and the right support arm 12 to level the grain surface, or it can be moved back and forth, using the front support arm 13 to level the grain surface, thereby improving the flexibility of grain surface leveling.
[0026] Considering the different pitch angles of the belt conveyor mechanism during the grain distribution process, the grain-arranging support 1 needs a large range of rotation to ensure that it can smoothly rotate to the retraction and grain-arranging positions. Therefore, a further solution is that the left support arm 11 and the right support arm 12 are respectively hinged to the mechanism frame 3 through a linkage mechanism. The linkage mechanism includes a first link 14 and a support arm link 15, both of which are hinged to the mechanism frame 3 at one end, and a second link 16 hinged between their other ends. The ends of the left support arm 11 and the right support arm 12 away from the front support arm 13 are respectively fixed to the support arm link 15 of the two linkage mechanisms. The telescopic end of the telescopic rod 2 is hinged to the hinge axis of the first link 14 and the second link 16. Specifically, in the arrangement, the first link 14 and the second link 16 need to be in a V-shape, and the second link 16 and the support arm link 15 need to be in a V-shape. In this way, when the telescopic rod 2 extends or retracts, compared with directly driving the whole grain support 1 to rotate, the support arm link 15 has a larger range of rotation for the same stroke, thereby adapting to different pitch angles of the belt conveyor mechanism.
[0027] To ensure that the telescopic rod 2 can evenly drive the linkage mechanisms on both sides to rotate, a transverse transmission rod 17 is rotatably arranged between the hinge axes of the first link 14 and the second link 16 of the two linkage mechanisms. The fixed end of the telescopic rod 2 is hinged to the center of the bottom of the frame 3, and the telescopic end of the telescopic rod 2 is rotatably connected to the middle of the transverse transmission rod 17. The telescopic rod 2 can be a hydraulic cylinder or an electric push rod, and preferably can be remotely controlled by a remote control to facilitate the determination of the rotation angle of the grain support 1.
[0028] Furthermore, both the left support arm 11 and the right support arm 12 are equipped with grain-smoothing rollers 18, which are located on the lower side of the grain-smoothing support 1 when it is in the grain-smoothing position. Alternatively, another grain-smoothing roller 18 can be installed on the front support arm 13. By adding the grain-smoothing roller 18, the grain surface can be leveled during the grain-smoothing process, reducing friction and improving the smoothness of the grain-smoothing process.
[0029] like Figure 2 As shown, this utility model also provides a grain distribution vehicle, including a conveyor frame 5 with a walking mechanism at the bottom, a belt conveyor mechanism on the conveyor frame 5, the belt conveyor mechanism including a main support 6 and a mechanism frame 3 at the front end of the main support 6, the mechanism frame 3 being equipped with a conveyor belt 4 for conveying materials from back to front and from bottom to top, and the front end of the mechanism frame 3 being equipped with the aforementioned grain leveling mechanism for the grain distribution vehicle. By adding a grain surface leveling mechanism to the grain distribution vehicle, leveling can be achieved while distributing grain throughout the entire grain distribution process, greatly improving the efficiency of grain loading.
[0030] To facilitate leveling the grain surface using the movement of the grain distribution cart, the walking mechanism includes four actively steerable and actively moving wheels 7. To achieve pitch angle adjustment of the belt conveyor mechanism, the rear end of the main support 6 is rotatably connected to the conveyor frame 5, and a pitch adjustment mechanism 8 is provided between the main support 6 and the conveyor frame 5. The pitch adjustment mechanism 8 specifically includes triangular support frames 81 located on both sides of the middle of the main support 6, and an adjusting cylinder 82 hinged between the top of the triangular support frame 81 and the front end of the conveyor frame 5. A connecting rod can be provided between the two triangular support frames 81, and pull ropes 9 are also connected to the top of the triangular support frame 81 and the front and rear ends of the main support 6. Because the main support 6 is relatively long, by setting the triangular support frame 81 in the middle of the main support 6 and using pull ropes 9 to connect the triangular support frame 81 to the front and rear ends of the main support 6, the stability of the entire main support 6 can be ensured when the adjusting cylinder 82 is supported on the triangular support frame 81.
[0031] In summary, this utility model adds a rotatable grain-forming bracket 1 to the front end of the grain distribution vehicle's frame 3. During normal grain distribution operations, the grain-forming bracket 1 is in the retracted position, which does not affect the normal conveying of bulk grain on the conveyor belt 4. The bulk grain can be smoothly thrown into the grain bin via the conveyor belt 4. After grain distribution at a point is completed, the bulk grain will form a conical pile. At this time, the telescopic rod 2 can be used to drive the grain-forming bracket 1 to rotate to the grain-forming position, and then the grain distribution vehicle can be moved. The grain-forming bracket 1 can be used to smooth the top of the conical pile, achieving initial leveling of the conical pile. In addition, the four wheels of the grain distribution vehicle are designed to be independently steerable and run, which can better utilize the movement of the grain distribution vehicle to level the grain surface. At the same time, by setting a triangular support frame 81 in the middle of the main frame 6, and setting pull ropes at the top plate of the triangular support frame 81 and the front and rear ends of the main frame 6, the stability of the entire grain distribution vehicle structure can be ensured during the leveling process. The above modifications can reduce the difficulty of leveling the grain surface and improve the overall efficiency of grain loading.
Claims
1. A grain-arranging mechanism for a grain distribution vehicle, characterized in that: The system includes a grain-setting support (1) and a telescopic rod (2). One end of the grain-setting support (1) is hinged to the front end of the mechanism frame (3) of the grain distribution vehicle. The hinge axis is parallel to the width direction of the conveyor belt (4) on the mechanism frame (3). The fixed end of the telescopic rod (2) is hinged to the mechanism frame (3), and the telescopic end is hinged to the grain-setting support (1). The grain-setting support (1) has a retracted position that rotates upward to a vertical state and a grain-setting position that rotates forward to a horizontal state under the drive of the telescopic rod (2). When the grain-setting support (1) is in the retracted position, a clearance opening can be formed in the middle for the grain on the conveyor belt (4) to pass through.
2. The grain-arranging mechanism for a grain distribution vehicle as described in claim 1, characterized in that: The grain support (1) is a portal frame structure consisting of a left support arm (11), a right support arm (12) and a front support arm (13). The ends of the left support arm (11) and the right support arm (12) away from the front support arm (13) are hinged to the two sides of the front end of the frame (3).
3. The grain-arranging mechanism for a grain distribution vehicle as described in claim 2, characterized in that: The left support arm (11) and the right support arm (12) are respectively hinged to the frame (3) through a linkage mechanism. The linkage mechanism includes a first link (14) and a support arm link (15) both hinged to the frame (3) at one end, and a second link (16) hinged between the other ends of the two. The ends of the left support arm (11) and the right support arm (12) away from the front support arm (13) are respectively fixed on the support arm link (15) of the two linkage mechanisms. The telescopic end of the telescopic rod (2) is hinged to the hinge axis of the first link (14) and the second link (16).
4. The grain-arranging mechanism for a grain distribution vehicle as described in claim 3, characterized in that: A transverse transmission rod (17) is rotatably provided between the hinge shafts of the first link (14) and the second link (16) of the two linkage mechanisms. The fixed end of the telescopic rod (2) is hinged to the center of the bottom of the mechanism frame (3), and the telescopic end of the telescopic rod (2) is rotatably connected to the middle of the transverse transmission rod (17).
5. The grain-arranging mechanism for a grain distribution vehicle as described in claim 1, characterized in that: The telescopic rod (2) is a hydraulic cylinder or an electric push rod.
6. The grain-arranging mechanism for a grain distribution vehicle as described in any one of claims 1-5, characterized in that: Both the left support arm (11) and the right support arm (12) are equipped with grain straightening rollers (18), which are located on the lower side of the grain straightening support (1) when it is in the grain straightening position.
7. A grain distribution vehicle, comprising a conveyor frame (5) with a traveling mechanism at the bottom, a belt conveyor mechanism on the conveyor frame (5), the belt conveyor mechanism comprising a main support (6) and a mechanism frame (3) at the front end of the main support (6), the mechanism frame (3) being provided with a conveyor belt (4) for conveying materials from back to front and from bottom to top, characterized in that: The front end of the frame (3) is provided with a grain-setting mechanism for a grain-distributing vehicle as described in any one of claims 1-6.
8. The grain distribution vehicle as described in claim 7, characterized in that: The walking mechanism includes four walking wheels (7) capable of active steering and active walking.
9. The grain distribution vehicle as described in claim 7, characterized in that: The rear end of the main support (6) is rotatably connected to the conveyor frame (5), and its pitch angle can be adjusted by the pitch adjustment mechanism (8).
10. The grain distribution vehicle as described in claim 9, characterized in that: The pitch adjustment mechanism (8) includes a triangular support frame (81) set in the middle of the main support frame (6) and an adjustment cylinder (82) hinged between the top of the triangular support frame (81) and the front end of the conveyor frame (5). The top of the triangular support frame (81) is also connected to the front and rear ends of the main support frame (6) with pull ropes (9).