Uniform feeding device for feeding vehicles
By using a uniform feeding device with a material distribution plate and a mirror screw structure on the feeding vehicle, the problems of material accumulation and blockage on one side are solved, achieving uniform feeding and compact equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGPING POWER (CHANGZHOU) CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-03
AI Technical Summary
The screw feeders of existing feeding vehicles are prone to material accumulation, blockage, and uneven feeding on one side during the feeding process. In addition, the equipment is large in size, which affects its mobility.
The material distribution plate is used to divert the material to both sides of the screw conveyor mechanism, and the lateral thrust is concentrated in the middle by the mirror screw structure. Combined with the inclined side plate of the hopper and the end face covering structure of the screw, the material is fed evenly.
It achieves uniform material feeding, avoids problems such as blockage and excessive equipment size, and improves conveying efficiency and mobility.
Smart Images

Figure CN224449565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feed conveying equipment technology, and in particular to a uniform feeding device for a feeding vehicle. Background Technology
[0002] A screw feeder is a common material conveying device that uses a screw to transport materials from one location to another along a conveying pipe or trough. Screw feeders are typically installed on material delivery vehicles for material transport.
[0003] Currently, most feeding vehicles use a single screw conveyor to transport materials during the hopper unloading process. The screw rotation propels the feed from the hopper, but due to its threaded design and unilateral thrust distribution, the material is constantly squeezed and conveyed forward between the screw blades. This often causes the feed to accumulate on one side during transport, resulting in uneven feeding and potential blockages. Furthermore, to meet conveying requirements, existing devices often require lengthy conveying pipelines, making the overall equipment bulky.
[0004] The main defects of traditional screw conveyors in the hopper feeding process are as follows: First, the use of a unidirectional right-hand screw causes the lateral thrust to be concentrated on one side, making the feed prone to shift to one side during the conveying process, resulting in local accumulation, blockage, and uneven feeding; Second, to ensure continuous conveying, the conveying pipeline is often extended, which leads to an increase in equipment size and affects mobility; Third, the hopper design has not been specifically optimized, and the two sides of the hopper have not been modified, making it easy for feed to overflow at the screw end, further reducing the uniformity of feeding and conveying efficiency. Utility Model Content
[0005] The technical problem to be solved by this utility model is: in order to solve the technical problem that the existing feeding mechanism is prone to clogging and uneven feeding in the prior art, this utility model provides a uniform feeding device for feeding vehicle, which uses a screw conveyor mechanism to transport the feed falling from both sides to the middle for discharge, thereby meeting the requirements of uniform feeding and avoiding clogging of the screw conveyor mechanism.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a uniform feeding device for a feeding vehicle, comprising: a hopper having an inlet area and a outlet area; a uniform feeding plate installed in the outlet area, the uniform feeding plate and the side plate of the hopper forming a constricted left outlet and a right outlet; and a screw conveyor mechanism located below the outlet area, the screw conveyor mechanism receiving the material falling from the left outlet and the right outlet and conveying the material to the central dropping area.
[0007] This utility model is a uniform feeding device for a feeding vehicle. The feed is distributed to both sides of the screw conveyor mechanism by a uniform feeding plate, and the screw conveyor mechanism pushes the material towards the middle, so that the material is fed evenly and avoids the material from clogging the screw conveyor mechanism.
[0008] Furthermore, in order to evenly distribute the feed falling into the screw conveyor mechanism, the side plate of the hopper is an inwardly inclined side plate, the side plate is inclined inward in the vertical direction, the side wall of the equalizing plate is inclined in the direction of the side plate, and a left discharge port and a right discharge port are formed between the side plate of the hopper and the side wall of the equalizing plate.
[0009] Furthermore, in order to allow the feed to fall vertically into the screw conveyor mechanism, the bottom of the feed distribution plate is flush with the bottom of the side plate.
[0010] Furthermore, in order to ensure that the material can be uniformly fed from the middle of the screw conveyor mechanism, the screw conveyor mechanism includes at least two feeding screws arranged along the x-axis and spaced apart on the y-axis. The feeding screws have symmetrically arranged left and right helical blades, and the helical directions of the left and right helical blades are opposite.
[0011] Furthermore, in order to change the lateral thrust of the screw conveyor mechanism from a single-sided distribution to a central concentration, the number of conveying screws is two, and the spiral directions of the spiral blades on the same side of the conveying screws are opposite.
[0012] Furthermore, in order to provide a space for the feed to fall, there is a gap A between the ends of the left and right helical blades, and a gap B between the feeding screws, and the area between the gaps A and B forms a falling area.
[0013] Furthermore, to prevent feed from leaking from the ends of the spiral blades, a blocking element is provided above both ends of the feed screw, the blocking element being located above the ends of the left and right spiral blades.
[0014] Furthermore, in order to allow the feed to fall into the middle position of the screw conveyor, the left discharge port is located above the middle of the left helical blade, and the right discharge port is located above the middle of the right helical blade.
[0015] Furthermore, a discharge conveyor belt is provided below the material dropping area. The discharge conveyor belt is arranged perpendicularly to the screw conveyor mechanism, which can shorten the length of the conveying pipeline and reduce the size of the equipment.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This utility model is a uniform feeding device for a feeding vehicle. The uniform feeding plate and the discharge area are combined to form a left discharge port and a right discharge port. The feed is evenly distributed into the screw conveyor mechanism through the left discharge port and the right discharge port, and the screw conveyor mechanism concentrates the feed towards the center to ensure uniform feeding.
[0018] 2. The present invention is used for a uniform feeding device for a feeding vehicle. The screw conveying mechanism adopts a mirror screw structure, which allows the lateral thrust generated by the screw during operation to be concentrated in the middle, thereby guiding the feed evenly to the discharge port and avoiding the problems of local blockage and uneven feeding caused by concentrated thrust on one side.
[0019] 3. This utility model is used for a uniform feeding device for a feeding vehicle. Through the four inclined sides of the hopper and the end face covering structure of the screw, it prevents feed from falling into the end of the screw conveying mechanism and avoids leakage of residual material in the trough at the end of the screw. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Figure 1 This is a schematic diagram of the uniform feeding device for a feeding vehicle according to the present invention;
[0022] Figure 2 for Figure 1 Side view;
[0023] Figure 3 for Figure 1 A sectional view;
[0024] Figure 4 This is a top view of the screw conveyor mechanism;
[0025] In the picture:
[0026] 1. Hopper; 11. Left discharge port; 12. Right discharge port; 13. Side plate;
[0027] 2. Uniform material plate;
[0028] 3. Screw conveyor mechanism; 31. Conveying screw; 32. Left helical blade; 33. Right helical blade;
[0029] 4. Discharge conveyor belt. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] Example 1, as Figures 1 to 4 As shown, a uniform feeding device for a feeding vehicle includes: a hopper 1, which has an inlet area and a outlet area. A uniform feeding plate 2 is installed in the outlet area, and the uniform feeding plate 2 and the side plate 13 of the hopper 1 form a narrowed left outlet 11 and a right outlet 12. A screw conveyor mechanism 3 is located below the outlet area, which receives the material falling from the left outlet 11 and the right outlet 12 and conveys the material to the central discharge area. The uniform feeding plate 2 has a triangular cross-section.
[0034] Specifically, the left discharge port 11 and the right discharge port 12 are located in the middle of the screw conveyor mechanism 3. Feed enters the hopper 1 from the feed inlet area, and then is evenly distributed by the equalizing plate 2 before falling from the left discharge port 11 and the right discharge port 12. The feed lands precisely in the middle area on both sides of the screw conveyor mechanism 3, and is then conveyed from both sides to the center by the screw conveyor mechanism 3, finally exiting from the discharge area within the screw conveyor mechanism 3. The equalizing plate 2 and the hopper 1 form the left discharge port 11 and the right discharge port 12, allowing the feed to be evenly distributed to both sides of the screw conveyor mechanism 3. The screw conveyor mechanism 3 then conveys the feed from both sides to the center, achieving uniform feed distribution.
[0035] In Example 2, based on Example 1, the side plate 13 of the hopper 1 is inclined inwards in the vertical direction. The side wall of the equalizing plate 2 is inclined in the direction of the side plate, forming a left discharge port 11 and a right discharge port 12 between the side plate 13 of the hopper 1 and the side wall of the equalizing plate 2. The bottom of the equalizing plate is flush with the bottom of the side plate 13. The side plate 13 can guide the feed, preventing it from falling into the left and right ends of the screw conveyor 3, preventing feed leakage from the end of the screw conveyor 3, and making the feed more concentrated during the feeding process.
[0036] In Example 3, based on Example 2, the screw conveyor mechanism 3 includes at least two parallel and spaced-apart feeding screws 31. The two feeding screws 31 are arranged along the x-axis and spaced apart on the y-axis. Each feeding screw 31 has a symmetrically arranged left helical blade 32 and a right helical blade 33, with opposite helical directions. The helical blades on the same side of the feeding screws 31 have opposite directions, forming a mirror-symmetrical structure. Feed falls into the middle position on both sides of the feeding screws 31. Under the action of the left and right helical blades 32 and 33, the feed moves from both sides towards the middle along the direction of the arrows in the figure and gathers, achieving feed gathering before discharge.
[0037] The screw conveyor mechanism 3 adopts a mirrored reverse thread structure, which changes the lateral thrust from a single-sided distribution to a central concentration, thereby guiding the feed in the trough evenly to the discharge port and avoiding local blockage and uneven feeding caused by the concentration of thrust on one side.
[0038] Specifically, the left discharge port 11 is located above the middle of the left helical blade 32, and the right discharge port 12 is located above the middle of the right helical blade 33. There is a gap A between the ends of the left and right helical blades 32 and 33, and a gap B between the screw conveyors 31. The area between gaps A and B forms the feed drop area. The feed falls into the middle area between the left and right helical blades 32 and 33, and moves towards the center under the action of the blades. The feed drop area is located in the middle of the screw conveyor mechanism 3, achieving concentrated feed feeding.
[0039] Example 4: Based on Example 3, a discharge conveyor belt 4 is provided below the material dropping area. The discharge conveyor belt 4 is arranged perpendicularly to the screw conveyor mechanism 3, which can shorten the length of the conveyor belt and reduce the size of the equipment.
[0040] The working principle of the uniform feeding device for the feeding vehicle of this utility model is as follows: The feed is put into the feed hopper 1 from the feeding area above the feed hopper 1. The feed moves downward and falls from the left discharge port 11 and the right discharge port 12 into the screw conveyor mechanism 3 below under the action of the four side plates and the uniform feeding plate at the bottom of the feed hopper 1. The left spiral blade 32 and the right spiral blade 33 convey the feed to the middle until the feed falls from the middle dropping area into the discharge conveyor belt 4 below.
[0041] In summary, the present invention provides a uniform feeding device for a feeding vehicle, which uses a screw conveyor mechanism to transport feed falling from both sides to the middle for discharge, thereby meeting the requirements of uniform feeding and avoiding blockage of the screw conveyor mechanism.
[0042] The above description is based on the preferred embodiments of this utility model. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.
Claims
1. A uniform material discharging device for a charging car, characterized in that, include: The hopper (1) has an inlet area and an outlet area; A material distribution plate (2) is installed in the discharge area. The material distribution plate (2) and the side plate (13) of the hopper (1) form a narrowed left discharge port (11) and a right discharge port (12). The screw conveyor (3) located below the discharge area receives the material falling from the left discharge port (11) and the right discharge port (12) and conveys the material to the middle discharge area.
2. The uniform material discharging device for a charging car according to claim 1, wherein The side plate (13) of the hopper (1) is an inwardly inclined side plate (13). The side plate (13) is inwardly inclined in the vertical direction. The side wall of the material equalization plate (2) is inclined towards the side plate (13). A left discharge port (11) and a right discharge port (12) are formed between the side plate (13) of the hopper (1) and the side wall of the material equalization plate (2).
3. The uniform material discharging device for a charging car according to claim 1, wherein The bottom of the uniform material plate (2) is flush with the bottom of the side plate (13).
4. The uniform material discharging device for a charging car according to claim 1, wherein The screw conveying mechanism (3) includes at least two parallel and spaced conveying screws (31). The conveying screws (31) have symmetrically arranged left helical blades (32) and right helical blades (33), and the helical directions of the left helical blades (32) and right helical blades (33) are opposite.
5. The uniform material discharging device for a charging car according to claim 4, wherein The number of the conveying screws (31) is 2, and the spiral directions of the spiral blades on the same side of the conveying screws (31) are opposite.
6. The uniform material discharging device for a charging car according to claim 5, wherein There is a gap A between the ends of the left helical blade (32) and the right helical blade (33), and there is a gap B between the feed screws (31). The area between the gaps A and B forms a material dropping area.
7. The uniform material discharging device for a charging car according to claim 6, wherein The feed screw (31) has a blocking member above both ends, which is located above the ends of the left helical blade (32) and the right helical blade (33).
8. The uniform material discharging device for a charging car according to claim 7, wherein The left discharge port (11) is located above the middle of the left helical blade (32), and the right discharge port (12) is located above the middle of the right helical blade (33).
9. The uniform material dispensing device for a charging car according to claim 4, wherein Below the material dropping area is a discharge conveyor belt (4), which is perpendicular to the screw conveyor mechanism (3).