Scraper capable of preventing material accumulation in middle

Abstract

The utility model relates to the technical field of scraper conveyors, in particular to a scraper conveyor capable of preventing material accumulation in the middle. The gate plate mechanism is located at the discharging port of the machine groove, a grain flowing bottom plate horizontally inserted into the discharging port is arranged at the top of one side of the gate plate mechanism, a gate plate stretching and retracting along the width of the scraper is arranged in the gate plate mechanism, and the top face of the gate plate is attached to the bottom face of the grain flowing bottom plate; a cleaning mechanism abutting against the downlink chain is rotationally connected between the side plates above the discharge port of the machine groove. Whether materials flow out or not is controlled through opening and closing of the flashboard, the grain flowing bottom plate and the flashboard are combined, the material flow residual space is greatly reduced, the grain flowing bottom plate can effectively prevent the chain from falling down at the discharging port, the service life of the chain is prolonged, the sweeping mechanism can block splashed materials when the flashboard is opened, and the bottom end of the sweeping mechanism abuts against the downlink chain. And the chain can be cleaned, so that material accumulation is reduced, the phenomenon of material carrying is avoided, and the phenomenon of material mixing among a plurality of discharging points is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper machines, in particular to a scraper machine with a central portion for preventing material accumulation. Background Art

[0002] The grain silo scraper conveyor is a key equipment in the grain processing industry, which safeguards food security with its efficient, stable and reliable performance. Its unique structure and working principle realize continuous and stable grain transportation, reduce losses and improve efficiency. The characteristics of easy operation and convenient maintenance make it widely used, providing strong support for the development of the grain processing industry. However, when the existing scraper conveyor unloads at multiple unloading points, the bottom of the machine trough and the electric gate are mostly connected by a conical hopper. When the gate is closed, the conical hopper will cause a lot of material accumulation due to its large volume, and when the gate is opened, the material will collide and splash during the falling process, and the material on the chain often does not fall completely. The above two reasons cause the excess material to be brought to the next unloading point, causing mixing between multiple unloading points. The prior art 202221002970.1 discloses a self-cleaning discharging device for the middle machine trough of a scraper conveyor, including an electric gate, a swing shaft and a wear-resistant plate. The electric The dynamic gate is located below the scraper conveyor, the material channel of the electric gate is opposite to the discharge port of the middle machine trough and is connected through a channel steel flange, the swing shaft is located above the discharge port and both ends are rotatably connected to the machine trough side plates of the scraper conveyor, the wear-resistant plate is fixed on the swing shaft and the bottom end is against the downward chain of the scraper conveyor; although it reduces material accumulation, avoids the occurrence of material carrying, and avoids mixing between multiple unloading points; but during use, it was found that when the electric gate is closed, the top of the electric gate is connected to the discharge port through a channel steel flange, and there is still a height difference, there will be a certain amount of material residue problem, which cannot meet customer needs. Utility Model Content

[0003] The utility model aims to solve the above-mentioned problem, thereby providing a scraper machine with a middle portion for preventing material accumulation and reducing material residue.

[0004] The utility model solves the above problems and adopts the following technical solutions:

[0005] A scraper machine for preventing material accumulation in the middle part comprises a head and a tail with sprockets, a trough is arranged between the head and the tail, a conveying chain is wound between the sprockets, scrapers are evenly arranged on the conveying chain, and also comprises a gate mechanism located at the machine trough discharge port, a grain flow bottom plate horizontally inserted in the discharge port is arranged on the top of one side of the gate mechanism, a gate that can be extended and retracted along the width of the scraper machine is arranged in the gate mechanism, the top surface of the gate is in contact with the bottom surface of the grain flow bottom plate, and a cleaning mechanism that resists the downward chain is rotatably connected between the side plates above the machine trough discharge port.

[0006] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0007] The opening and closing of the gate is used to control whether the material flows out. The grain flow bottom plate and the gate are combined. The grain flow bottom plate acts as a part of the machine trough bottom plate, which greatly reduces the residual space for logistics. Only residual materials with the same thickness as the grain flow bottom plate remain at the discharge port to meet customer needs. The grain flow bottom plate can effectively prevent the chain from falling at the discharge port, thereby increasing the life of the chain. The cleaning mechanism can block the splashing material when the gate is opened, and the bottom end is against the downward chain, which can be used to clean the chain to prevent the material from being brought into the next unloading point. When the gate is closed, the material flow rate is large, and the cleaning mechanism swings backward when impacted by the material, and will not block the advancement of the material. This structure reduces material accumulation, avoids the occurrence of material carrying, and avoids mixing between multiple unloading points.

[0008] As a preferred embodiment, a further technical solution of the utility model is:

[0009] Furthermore, a grain flow opening is arranged in the middle of the grain flow bottom plate, and two oblique longitudinal ribs arranged in an eight-shaped shape and a plurality of transverse ribs are arranged in the grain flow opening.

[0010] Furthermore, the grain flow bottom plate has a thickness of 5-7 mm.

[0011] Furthermore, the gate mechanism includes a shell, one side of which is located below the machine slot discharge port and is provided with a material channel, the grain flow bottom plate is fixed at the top of the material channel, a reduction motor is provided on the side of the shell away from the machine slot, a transmission screw perpendicular to the machine slot is rotatably connected to the side of the shell away from the machine slot, the output end of the reduction motor is inserted into the shell and connected to one end of the transmission screw, a nut is sleeved on the transmission screw, the bottom of the gate is fixed to the top of the nut, a roller cooperating with the gate is horizontally provided on the inner wall of the shell, and the gate slides along the roller at the bottom of the grain flow bottom plate.

[0012] Furthermore, a partition plate is arranged in the middle of the shell and close to the material channel.

[0013] Furthermore, the cleaning mechanism includes a horizontally placed swing shaft, both ends of which are rotatably connected to the side walls of the machine groove, a fixed plate is integrally formed at the bottom of the swing shaft, a wear-resistant plate is fixed to the bottom of the fixed plate, and the bottom end of the wear-resistant plate is against the downward chain of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of a cross-sectional structure of an embodiment of the utility model from top view;

[0016] Figure 3This is a schematic diagram of the front cross-sectional structure of the gate mechanism of the utility model embodiment;

[0017] Figure 4 This is a schematic diagram of the main structure of the scraper body of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the gate mechanism of the utility model in a top view;

[0019] Marked in the figure are: head 1, tail 2, machine slot 3, grain flow bottom plate 4, gate plate 5, shell 6, material channel 61, reduction motor 7, transmission screw 8, roller 9, partition plate 10, swing shaft 11, fixed plate 12, wear-resistant plate 13. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0021] A scraper machine with a middle material accumulation prevention function comprises a head 1 and a tail 2 with sprockets, a machine trough 3 is arranged between the head 1 and the tail 2, a conveying chain is wound between the sprockets, and scrapers are evenly arranged on the conveying chain. The invention also comprises a gate mechanism located at the discharge port of the machine trough 3, and a grain flow bottom plate 4 horizontally inserted in the discharge port is arranged on the top of one side of the gate mechanism. The material falls downward through the hole in the middle of the grain flow bottom plate 4, and the grain flow bottom plate 4 can prevent the chain from falling here. A gate 5 which can be extended and retracted along the width of the scraper machine is arranged in the gate mechanism, and the gate 5 is opened and closed to control whether the material falls, and the top surface of the gate 5 is in contact with the bottom surface of the grain flow bottom plate 4. The gate 5 is in contact with the grain flow bottom plate 4 to reduce the material accumulation space, and a cleaning mechanism which resists the downward chain is rotatably connected between the side plates above the discharge port of the machine trough 3.

[0022] Furthermore, a grain flow opening is provided in the middle of the grain flow bottom plate 4, and two oblique longitudinal ribs arranged in an eight-shaped shape and a plurality of transverse ribs are provided in the grain flow opening. The material falls through the grain flow opening, and the oblique longitudinal ribs can ensure that the material falls into the grain flow opening during the backward movement.

[0023] Furthermore, the grain flow bottom plate 4 has a thickness of 5-7 mm to avoid excessive accumulation of material.

[0024] Furthermore, the gate mechanism includes a shell 6, one side of the shell 6 is located below the discharge port of the machine slot 3 and is provided with a material channel 61, the grain flow bottom plate 4 is fixed at the top of the material channel 61, a reduction motor 7 is provided on the side of the shell 6 away from the machine slot 3, and a transmission screw 8 perpendicular to the machine slot 3 is rotatably connected to the side of the shell 6 away from the machine slot 3. The output end of the reduction motor 7 is inserted into the shell 6 and connected to one end of the transmission screw 8. A nut is sleeved on the transmission screw 8, and the bottom of the gate 5 is fixed to the top of the nut. A roller 9 cooperating with the gate 5 is horizontally provided on the inner wall of the shell 6, and the gate slides along the roller 9 at the bottom of the grain flow bottom plate 4. The reduction motor 7 drives the transmission screw 8 to rotate, and then drives the gate to move along the roller 9 to control the opening and closing of the gate 5, and the material falls downward through the material channel 61.

[0025] Furthermore, a partition plate 10 is provided in the middle of the shell 6 and close to the material channel 61 , and the partition plate 10 separates the material channel 61 from the other side to prevent the material from entering the shell 6 on the side with the transmission screw 8 during the falling process.

[0026] Furthermore, the cleaning mechanism includes a horizontally placed swing shaft 11, both ends of the swing shaft 11 are rotatably connected to the side walls of the machine slot 3, a fixed plate 12 is integrally formed at the bottom of the swing shaft 11, a wear-resistant plate 13 is fixed to the bottom of the fixed plate 12, and the bottom end of the wear-resistant plate 13 is against the downward chain of the scraper conveyor. When the gate 5 is opened, the wear-resistant plate 13 can block the splashing material, and the bottom end of the wear-resistant plate 13 is against the downward chain, which can be used to clean the chain to prevent the material from being brought into the next unloading point. When the gate 5 is closed, the flow rate of the material is large, and when the wear-resistant plate 13 is impacted by the material, it swings upward through the swing shaft 11 and will not block the advancement of the material.

[0027] The opening and closing of the gate 5 is used to control whether the material flows out, and the grain flow bottom plate 4 and the gate 5 are combined. The grain flow bottom plate 4 acts as a part of the bottom plate of the machine trough 3, which greatly reduces the residual space of logistics. Only residual materials with the same thickness as the grain flow bottom plate 4 remain at the discharge port to meet customer needs, and the grain flow bottom plate 4 can effectively prevent the chain from falling at the discharge port, thereby increasing the life of the chain. The cleaning mechanism can block the splashing material when the gate 5 is opened, and the bottom end is against the downward chain, which can be used to clean the chain to prevent the material from being brought into the next unloading point. When the gate 5 is closed, the flow rate of the material is large, and the cleaning mechanism swings backward when impacted by the material, and will not block the advancement of the material. This structure reduces material accumulation, avoids the occurrence of material carrying, and avoids the mixing of materials between multiple unloading points.

[0028] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A scraper for preventing accumulation of materials in the middle, comprising a head and a tail with sprockets, a groove is arranged between the head and the tail, a conveyor chain is wound between the sprockets, and scrapers are evenly arranged on the conveyor chain, characterized in that: It also includes a gate mechanism located at the machine trough discharge port, a grain flow bottom plate horizontally inserted in the discharge port is arranged at the top of one side of the gate mechanism, a gate that can be extended and retracted along the width of the scraper conveyor is arranged in the gate mechanism, the top surface of the gate is in contact with the bottom surface of the grain flow bottom plate, and a cleaning mechanism that resists the downward chain is rotatably connected between the side plates above the machine trough discharge port.

2. The scraper for preventing material accumulation in the middle according to claim 1, characterized in that: A grain flow opening is arranged in the middle of the grain flow bottom plate, and two oblique longitudinal ribs arranged in an eight-shaped shape and a plurality of transverse ribs are arranged in the grain flow opening.

3. The scraper for preventing material accumulation in the middle according to claim 1, characterized in that: The thickness of the grain flow bottom plate is 5-7mm.

4. The scraper for preventing material accumulation in the middle according to claim 1, characterized in that: The gate mechanism includes a shell, one side of which is located below the machine slot discharge port and is provided with a material channel, the grain flow bottom plate is fixed at the top of the material channel, a reduction motor is arranged on the side of the shell away from the machine slot, a transmission screw perpendicular to the machine slot is rotatably connected to the side of the shell away from the machine slot, the output end of the reduction motor is inserted into the shell and connected to one end of the transmission screw, a nut is sleeved on the transmission screw, the bottom of the gate is fixed to the top of the nut, a roller cooperating with the gate is horizontally arranged on the inner wall of the shell, and the gate slides along the roller at the bottom of the grain flow bottom plate.

5. The scraper for preventing material accumulation in the middle according to claim 4, characterized in that: A partition plate is arranged in the middle of the shell body and close to the material channel.

6. The scraper for preventing material accumulation in the middle according to claim 1, characterized in that: The cleaning mechanism includes a horizontally placed swing shaft, both ends of which are rotatably connected to the side walls of the machine slot, a fixed plate is integrally formed at the bottom of the swing shaft, a wear-resistant plate is fixed at the bottom of the fixed plate, and the bottom end of the wear-resistant plate is against the downward chain of the scraper.

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