Vehicle grain unloading platform system
By designing a box-type structure and a flap buffer device, the problem of equipment impact during grain unloading was solved, extending the equipment life and improving the versatility and load-bearing capacity of the unloading platform.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2026-03-03
AI Technical Summary
In existing technologies, the large unit flow rate and large drop during unloading of grain from the truck bed lead to a shortened equipment life and grain breakage. Furthermore, the traditional unloading port structure of the truck bed makes it difficult to universally adapt the unloading platform.
A box-type structure made of reinforced concrete was designed, with a screen laid on the top surface. The scraper conveyor has multiple feeding ports and discharge hoppers. The tipping plate buffers the grain flow through a rotating shaft device and a reset mechanism. The supporting structure improves the load-bearing capacity and is suitable for unloading grain in a hopper car.
It mitigates the impact of grain flow on conveying equipment, extends equipment life, and improves the versatility and load-bearing capacity of the unloading platform.
Smart Images
Figure CN223962929U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of grain storage and transportation technology, specifically a vehicle grain unloading platform system. Background Technology
[0002] In current technology, long-distance grain transportation often utilizes enclosed trucks or trains. During transportation, the grain can be packaged in standard woven bags or in bulk. Bulk transportation is more economical and efficient, especially suitable for transporting partially processed grain from the place of origin to large grain storage bases. In bulk transportation, a feed inlet is typically located at the top of the vehicle's cargo compartment, while a discharge outlet is located at the bottom. After the vehicle reaches the unloading platform, the bottom discharge outlet is opened, and the grain falls under its own weight into the transfer system at the bottom of the unloading platform.
[0003] The main problems existing in the current technology are:
[0004] 1. The unit flow rate of grain unloading in the truck is very large, and the drop between the unloading platform surface and the conveying equipment of the transfer system is large. The grain flow has a great impact on the conveying equipment, resulting in shortened equipment life and grain breakage.
[0005] 2. The newly emerging train hopper car has its unloading port located directly below the car, which can improve operational efficiency. However, the unloading ports of traditional train cars and truck cars are located on the sides of the vehicle. In particular, the structure of trucks makes it impossible to place the unloading port directly below the car, which leads to the problem that existing grain unloading platforms are not universally compatible. Summary of the Invention
[0006] In order to solve the problems existing in the prior art, this utility model proposes a vehicle unloading platform system, including an underground equipment space and a conveying device within the equipment space;
[0007] The equipment space is constructed of a box-shaped structure made of reinforced concrete, with an open top surface covered by a screen. Within this structure, the equipment and the two logistics channels for grain conveying and unloading are independent and do not interfere with each other. The ground-level vehicle access facilitates connection to the road network and promotes vehicle traffic.
[0008] The conveying equipment is a scraper conveyor; the scraper conveyor has multiple feed inlets, which are arranged sequentially along the forward direction of the scraper; a discharge hopper is connected above each feed inlet; the top surfaces of adjacent discharge hoppers are sequentially spliced to form a discharge surface, which is below the top surface of the box-type structure; the bottom surface of the discharge hopper is connected to the feed inlet through a guide hopper. In this structure, grain from the vehicle is divided into multiple grain streams and fed into each feed inlet separately, mitigating the impact per unit area of the conveyor.
[0009] The guide chamber is a rectangular hollow structure. A portion of the scraper conveyor at the feed inlet is sealed within the guide chamber. For this portion of the scraper conveyor: the return scraper channel is above the material channel, and both channels are sealed; the outgoing scraper is inside the material channel. Feed inlets are located on both side walls of the material channel. A flap is located between the inner wall of the guide chamber and the outer side wall of the return scraper channel. The flap is rotatably connected to the inner wall of the guide chamber, with its rotation axis parallel to the forward direction of the scraper. The space above the flap is connected to the bottom of the hopper, and the space below the flap is connected to the feed inlet. Under normal conditions, the flap separates the spaces above and below it. When force is applied above the flap, it flips, connecting the spaces above and below it. The flap is connected to a rotational reset mechanism. This structure, through the buffering effect of the flap, further mitigates the impact of the grain flow on the conveyor and isolates the external space from the internal space of the conveyor.
[0010] Furthermore, the radial cross-section of the top of the return scraper channel is an isosceles triangle, with the apex pointing towards the center line of the bottom surface of the hopper. This structure divides the grain flow into two streams, each flowing towards the feed inlets on either side, and the flow is further slowed down by the top diversion. It also reduces the design complexity of the tipper.
[0011] Specifically: the flap is connected to the inner wall of the feed hopper via a rotating shaft device; the rotation reset mechanism is a torsion spring connected to the rotating shaft device. The reset mechanism is used to reset the flap, and can also adaptively adjust the degree of flap rotation to match the impact intensity of the grain flow caused by gravity.
[0012] Specifically: the flap is connected to the inner wall of the guide chamber via a rotating shaft device; the bearings of the rotating shaft device are located on the front and rear sides of the guide chamber, and each end of the rotating shaft is connected to a bearing; one end of the rotating shaft extends out of the guide chamber, and a counterweight connecting rod is connected to the extended part of the rotating shaft. One end of the counterweight connecting rod is connected to a counterweight, and the other end of the counterweight connecting rod is fixed to the rotating shaft. Compared with the torsion spring structure, this structure allows for manual replacement of the counterweight. Furthermore, the counterweight is screwed onto the connecting rod via a screw connection mechanism, and the position of the counterweight is adjustable along the counterweight connecting rod. In this structure, based on the lever principle, the degree of flap rotation is affected by adjusting the configured lever arm.
[0013] Furthermore, the top surface of the box structure is divided into multiple areas by a support structure, and each area is below the top surface of a hopper.
[0014] The support structure is divided into multiple support units, with one support unit corresponding to one area; each support unit includes a column, a crossbeam, and a longitudinal beam; the length direction of the longitudinal beam is parallel to the forward direction of the scraper, and the length direction of the crossbeam is perpendicular to the forward direction of the scraper.
[0015] Four uprights are located at the four corners of the corresponding hoppers; two crossbeams are connected to the tops of the two uprights respectively, and the ends of the two longitudinal beams are connected to the two crossbeams; multiple steel profiles are connected between the tops of the two side walls of the box structure and the longitudinal beams, as well as between the two longitudinal beams, to form multiple grids, and a screen is installed in each grid.
[0016] Train tracks are installed on the top surfaces of the two longitudinal beams.
[0017] By increasing the load-bearing capacity and density of the supporting structure, the system's ability to support ground vehicles is improved. In particular, a material discharge screen is also installed between the two longitudinal beams, which can be used for unloading grain from the hopper car.
[0018] Furthermore, the head section of the scraper conveyor is raised, and the discharge port is located on the bottom surface of the head section's casing. The discharge port is connected to the discharge port of another scraper conveyor via a transition pipe; the scrapers of the two scraper conveyors travel in perpendicular directions. With this structure, grain can be transported from this platform unit to the storage area via another scraper conveyor below the ground level of the unloading platform, but grain allocation and distribution within the storage area are also possible.
[0019] The main beneficial effects of this utility model are:
[0020] The conveying equipment can adaptively adjust the opening and closing degree of the flap according to the accumulated weight and flow rate of the material to match the gravity, which plays a certain role in buffering the falling material, reducing the impact of the material on the structure of the scraper conveyor, increasing the service life of the equipment, and further improving safety.
[0021] The platform's support structure and the corresponding screen design for the train tracks increase the platform's load-bearing capacity and adapt to the unloading structure of the hopper car. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the platform system in this embodiment;
[0023] Figure 2 This is a structural diagram of the material guide compartment. Figure 1 (Right view direction)
[0024] Figure 3 This is a schematic diagram of the bearing installation position of the rotating shaft assembly (and...). Figure 1 (Same perspective)
[0025] Figure 4 This is a partial schematic diagram of the top surface of the box-type structure (and...). Figure 1 (Same perspective)
[0026] Figure 5 This is a partial schematic diagram of the top surface of the box-type structure. Figure 1 (Right view direction)
[0027] In the diagram: 1. Equipment space; 2. Screen; 3. Scraper conveyor; 4. Feed inlet; 5. Drop hopper; 6. Guide hopper; 7. Return scraper channel; 8. Material channel; 9. Tilting plate; 10. Bearing; 11. Rotary shaft; 12. Counterweight connecting rod; 13. Counterweight; 14. Column; 15. Crossbeam; 16. Longitudinal beam; 17. Steel profile; 18. Train track; 19. Head section; 20. Transition pipe; 21. Another scraper conveyor; 22. Observation port. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0029] refer to Figure 1 A vehicle unloading platform system includes an underground equipment space 1 and conveying equipment within the equipment space.
[0030] The equipment space 1 is a box-shaped structure made of reinforced concrete. The top surface of the box-shaped structure is open, and a screen 2 is laid on the top surface of the box-shaped structure.
[0031] The conveying equipment is a scraper conveyor 3; the scraper conveyor has multiple feed ports 4, which are arranged sequentially along the forward direction of the scraper of the scraper conveyor; a discharge hopper 5 is connected above each feed port; the top surfaces of adjacent discharge hoppers are sequentially spliced to form a discharge surface, which is below the top surface of the box structure; the bottom surface of the discharge hopper is connected to the feed port through a guide chamber.
[0032] Further reference Figure 2 The guide chamber 6 is a rectangular hollow structure. A portion of the scraper conveyor 3 at the feed inlet is sealed within the guide chamber 6. For this portion of the scraper conveyor: the return scraper channel 7 is above the material channel 8, and both channels are sealed; the outgoing scraper is inside the material channel 8. Feed inlets 4 are opened on both side walls of the material channel. A flap 9 is located between the inner wall of the guide chamber and the outer side wall of the return scraper channel. The flap is rotatably connected to the inner wall of the guide chamber, with its rotation axis parallel to the forward direction of the scraper. The space above the flap is connected to the bottom surface of the hopper, and the space below the flap is connected to the feed inlet. Under normal conditions, the flap separates the spaces above and below it. When force is applied above the flap, the flap flips, connecting the spaces above and below it. The flap is connected to a rotation reset mechanism. In this example, a stop block is also connected to the outer wall of the return scraper channel to block the flap and prevent it from excessively flipping upwards.
[0033] In this example, the radial section at the top of the return scraper channel 7 is an isosceles triangle, with the apex pointing towards the center line of the bottom surface of the hopper 5.
[0034] One configuration is that the flap is connected to the inner wall of the guide chamber via a rotating shaft device; the rotation reset mechanism is a torsion spring connected to the rotating shaft device.
[0035] See again Figure 3 In this example, the flap 9 is connected to the inner wall of the guide chamber 6 via a rotating shaft device; the bearings 10 of the rotating shaft device are located on the front and rear sides of the guide chamber, and a bearing is connected to each end of the rotating shaft 11; one end (or both ends) of the rotating shaft extends out of the guide chamber, and a counterweight connecting rod 12 is connected to the extended part of the rotating shaft. One end of the counterweight connecting rod is connected to a counterweight 13, and the other end of the counterweight connecting rod is fixed to the rotating shaft. The counterweight is screwed onto the connecting rod via a screw connection mechanism (the main body of the counterweight connecting rod is threaded, and the counterweight has a screw hole, and the two are connected in a fitting manner), and the position of the counterweight is adjustable along the counterweight connecting rod.
[0036] See again Figure 1 The top surface of the equipment space (i.e., the box structure) is divided into multiple areas by the support structure, and each area is under the top surface of a hopper 5.
[0037] See again Figure 4 and Figure 5 The support structure is divided into multiple support units, with one support unit corresponding to one area; each support unit includes a column 14, a crossbeam 15, and a longitudinal beam 16; the length direction of the longitudinal beam is parallel to the forward direction of the scraper, and the length direction of the crossbeam is perpendicular to the forward direction of the scraper.
[0038] Four uprights 14 are located at the four corners of the corresponding hoppers; two crossbeams 15 are connected to the tops of the two uprights respectively, and the two longitudinal beams 16 are connected to the two crossbeams at their ends; multiple steel profiles 17 are connected between the tops of the two side walls of the box structure and the longitudinal beams, as well as between the two longitudinal beams, to form multiple grids, and a screen 2 is installed in each grid.
[0039] Train tracks 18 are installed on the top surface of the two longitudinal beams 16.
[0040] In this example, there are several parallel beams between the first and last beams, with the ends of these beams spanning the top of the side walls of the box structure.
[0041] refer to Figure 1 The head section of the scraper conveyor 3 is raised, and the discharge port is located on the bottom surface of the housing of the head section. The discharge port is connected to the discharge port of another scraper conveyor 21 through the transition pipe 20. The scraper of the two scraper conveyors is perpendicular to each other.
Claims
1. A vehicle unloading platform system comprising a ground level equipment space, and a conveying device within the equipment space, characterized in that The device space is composed of a box structure made of reinforced concrete, the top surface of the box structure is open, and a screen is laid on the top surface of the box structure; The conveying device is a scraper conveyor; the scraper conveyor has multiple feeding ports arranged in sequence along the advancing direction of the scraper of the scraper conveyor; a falling hopper is connected above each feeding port; the top surfaces of adjacent falling hoppers are sequentially spliced to form a falling surface, and the falling surface is below the top surface of the box structure; the bottom surface of the falling hopper is connected to the feeding port through a material guiding cabin; The material guiding cabin is a rectangular hollow structure; part of the scraper conveyor at the position of the feeding port is sealed in the material guiding cabin; for this part of the scraper conveyor: the return scraper channel is above the material channel, and both channels are sealed, and the outgoing scraper is in the material channel; the feeding port is opened on the two side walls of the material channel; there is a flap between the inner wall of the material guiding cabin and the side wall of the return scraper channel, the flap is rotationally connected to the inner wall of the material guiding cabin, and the rotation axis direction is parallel to the advancing direction of the scraper; the space above the flap is in communication with the bottom surface of the falling hopper, the space below the flap is in communication with the feeding port, in the normal state, the flap separates the space above and below it; in the forced state above the flap, the flap is flipped, and the space above and below the flap is in communication; the flap is connected with a rotation reset mechanism.
2. The vehicle unloading platform system of claim 1, wherein The radial section of the top of the return scraper channel is an isosceles triangle, and the top angle points to the middle line position of the bottom surface of the falling hopper.
3. The vehicle unloading platform system of claim 1, wherein The flap is connected to the inner wall of the material guiding cabin through a rotating shaft device; the rotation reset mechanism is a torsion spring connected to the rotating shaft device.
4. The vehicle unloading platform system of claim 1, wherein The flap is connected to the inner wall of the material guiding cabin through a rotating shaft device; the bearings of the rotating shaft device are located on the front and rear surfaces of the material guiding cabin, and the two ends of the rotating shaft of the rotating shaft device are connected to one bearing respectively; The rotating shaft extends out of the material guiding cabin at either end, and a counterweight connecting rod is connected to the extending part of the rotating shaft; one end of the counterweight connecting rod is connected to a counterweight, and the other end of the counterweight connecting rod is fixed to the rotating shaft.
5. The vehicle unloading platform system of claim 4, wherein The counterweight is screwed on the counterweight connecting rod through a screw connection mechanism, and the position of the counterweight along the counterweight connecting rod is adjustable.
6. The vehicle grain unloading platform system of claim 1, wherein The top surface of the box structure is divided into multiple areas by a support structure, and the top surface of a falling hopper is below each area.
7. The vehicle unloading platform system of claim 6, wherein The support structure is divided into multiple support units, and one support unit corresponds to one area; each support unit includes a vertical column, a horizontal beam, and a longitudinal beam; the length direction of the longitudinal beam is parallel to the advancing direction of the scraper, and the length direction of the horizontal beam is perpendicular to the advancing direction of the scraper; Four vertical columns are located at the four corner positions of the corresponding falling hopper; two horizontal beams are connected to the top of two vertical columns respectively, and two longitudinal beams are connected across the two horizontal beams at the head and tail; multiple steel profiles are connected between the top of the two side walls of the box structure and the longitudinal beams, and between the two longitudinal beams to form multiple grids, and one screen is installed in each grid; The top surface of the two longitudinal beams is installed with a train track.
8. The vehicle grain unloading platform system of claim 1, wherein The head part of the scraper conveyor is raised, and the bottom surface of the casing of the head part is a discharge port; the discharge port is connected to the lower discharge port of another scraper conveyor through a transition pipeline; the advancing directions of the two scraper conveyors are perpendicular.