Buffer bin screw discharge device

Abstract

This utility model relates to a spiral discharge device for a buffer silo, characterized by comprising a basic steel frame, a rotating cylinder, a connecting seat, a spiral shaft, and a drive assembly. The drive assembly consists of a drive seat and a spiral shaft drive mechanism and a rotating cylinder drive mechanism mounted on the drive seat. The connecting seat is fixed to the center of the bottom of the storage silo via the basic steel frame. A bearing seat for rotating the rotating cylinder is provided on the inner wall of the connecting seat. The rotating cylinder is connected to the bearing seat via an externally mounted bearing structure. The lower end of the rotating cylinder passes through the connecting seat and connects to the drive seat. The spiral shaft in this design adopts a cantilever structure, rotating 360° around the center of the storage silo under the drive of the rotating cylinder, achieving dynamic cleaning and discharge of the bottom area of ​​the silo. It has the advantages of reasonable structure, high discharge efficiency, and convenient maintenance.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, specifically to a buffer bin screw discharge device. Background Technology

[0002] Existing buffer silo screw conveyors mostly adopt fixed speed ratio drive and single screw diameter structure, which have problems such as uneven discharge, material residue, and unstable operation. Especially under the condition of large silo diameter and high stacking, the traditional structure is prone to unbalanced screw shaft load, difficult start-up, high energy consumption, and short service life, and cannot meet the requirements of intelligent conveying and efficient discharge. Therefore, it is particularly important to design a buffer silo screw discharge device to solve the above problems. Summary of the Invention

[0003] To solve the above problems, this utility model designs a buffer bin spiral discharge device, in which the spiral shaft adopts a cantilever structure. Driven by the rotating cylinder, the spiral shaft rotates 360° around the center of the storage bin, realizing dynamic cleaning and discharge of the bottom area of ​​the bin. It has the advantages of reasonable structure, high discharge efficiency and convenient maintenance.

[0004] To solve the above-mentioned technical problems, this utility model provides a buffer bin screw discharge device, characterized in that it includes a basic steel frame, a rotating cylinder, a connecting seat, a screw shaft, and a drive assembly. The drive assembly consists of a drive seat and a screw shaft drive mechanism and a rotating cylinder drive mechanism mounted on the drive seat. The connecting seat is fixed to the center of the bottom of the storage bin by the basic steel frame. A bearing seat for rotating the rotating cylinder is provided on the inner wall of the connecting seat. The rotating cylinder is connected to the bearing seat through an externally fitted bearing structure. The lower end of the rotating cylinder passes through the connecting seat and is connected to the drive seat. The screw shaft adopts a cantilever structure and is horizontally arranged inside the lower end of the storage bin. It is composed of a screw section, a transmission section, and a tail shaft section connected in sequence. The screw section is a variable diameter and variable pitch screw shaft structure. One end of the screw shaft extends into the rotating cylinder along the feed port on the side wall and is connected to the screw shaft drive mechanism. The rotating cylinder drive mechanism is mounted on the drive seat. A top cover assembly is provided on the top of the rotating cylinder. A lubrication system is also installed on the drive seat.

[0005] Furthermore, two partition plates are fixed from left to right inside the rotating cylinder, namely a first partition plate on the left and a second partition plate on the right. The feed inlet is connected to the internal space of the rotating cylinder to the left of the first partition plate. A large bearing seat is fixed on the first partition plate through the cooperation of the front end cover and the rear end cover. The transmission part of the spiral shaft is connected to the large bearing seat through the first bearing sleeved on it. A tail bearing seat is fixed on the second partition plate through the cooperation of the connecting end cover and the tail end cover. The tail shaft part of the spiral shaft is connected to the tail bearing seat through the second bearing sleeved on it. The bottom of the rotating cylinder is also connected to a discharge hopper that communicates with the feed inlet.

[0006] Furthermore, the spiral shaft drive mechanism comprises a spiral shaft drive main motor, a first reducer, a chain, a small sprocket, and a large sprocket. The drive main motor is mounted on the drive base via the first reducer connected to it. The small sprocket is mounted on the output shaft of the first reducer. The large sprocket is mounted on the transmission part of the spiral shaft. The small sprocket is connected to the large sprocket via the chain. The drive base is also equipped with a chain tensioning device connected to the chain.

[0007] Furthermore, the rotating cylinder drive mechanism includes a rotating cylinder drive motor, a second reducer, a pinion gear, and an external gear ring. The rotating cylinder drive motor is fixedly connected to the second reducer and is placed vertically. The output shaft of the rotating cylinder drive motor is connected to the input shaft of the second reducer. The second reducer is fixed to the drive seat through a reducer connecting plate. The pinion gear is mounted on the output shaft of the second reducer. The external gear ring is fixedly mounted on the outer wall of the connecting seat and meshes with the pinion gear.

[0008] Furthermore, the top cover assembly is connected to the upper end of the rotating cylinder through an anti-detachment limiting structure.

[0009] Furthermore, the lubrication system consists of a lubrication pump, a progressive distributor, and a hose assembly mounted on the drive seat. The inlet of the lubrication pump is connected to the lubricating fluid storage tank, and the outlet of the lubrication pump is connected to the large bearing seat, the tail bearing seat, the bearing seat, and the anti-detachment limiting structure through the progressive distributor and the hose assembly, respectively.

[0010] After adopting the above structure, the present invention has the following beneficial effects:

[0011] 1. The spiral shaft in this utility model adopts a cantilever structure. Driven by the rotating cylinder, the spiral shaft will rotate 360° around the center of the storage bin, realizing dynamic cleaning and material discharge of the bottom area of ​​the bin. It has the advantages of reasonable structure, high discharge efficiency and convenient maintenance.

[0012] 2. The spiral shaft structure with variable diameter and variable pitch adopted in this utility model ensures uniform material conveying along the circumferential direction of the bottom of the silo.

[0013] 3. This utility model can achieve timed and quantitative all-round lubrication through the lubrication system, which can extend the service life and significantly reduce downtime. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a diagram showing the usage state of this utility model.

[0016] Figure 2 This is a schematic diagram of the screw shaft assembly.

[0017] Figure 3 This is a side view of the present invention.

[0018] Figure 4 This is the main view of the structure of this utility model.

[0019] Figure 5 This is a partial structural diagram of the drive assembly.

[0020] Figure 6 This is a schematic diagram of the connection of the discharge hopper.

[0021] In the diagram: 1 is the basic steel frame, 2 is the rotating cylinder, 3 is the connecting seat, 4 is the screw shaft, 5 is the drive seat, 6 is the storage hopper, 7 is the top cover assembly, 8 is the first partition plate, 9 is the second partition plate, 10 is the front cover, 11 is the rear cover, 12 is the large bearing seat, 13 is the connecting end cover, 14 is the tail end cover, 15 is the tail bearing seat, 16 is the main motor driving the screw shaft, 17 is the chain, 18 is the large sprocket, 19 is the chain tensioning device, 20 is the rotating cylinder drive motor, 21 is the pinion, 22 is the lubrication pump, 23 is the progressive distributor, and 24 is the discharge hopper. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be noted that certain terms indicating orientation or positional relationship 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.

[0024] In the description of this utility model, it should be noted that the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0025] The present invention will be further described in detail below through specific embodiments.

[0026] like Figure 1 and Figure 3 The buffer silo screw discharge device shown includes a base steel frame 1, a rotating cylinder 2, a connecting seat 3, a screw shaft 4, and a drive assembly. The drive assembly consists of a drive seat 5 and a screw shaft drive mechanism and a rotating cylinder drive mechanism mounted on the drive seat. The connecting seat is fixed to the center of the bottom of the storage silo 6 via the base steel frame. A bearing seat for rotating the rotating cylinder is provided on the inner wall of the connecting seat. The rotating cylinder is connected to the bearing seat via an externally fitted bearing structure. The lower end of the rotating cylinder passes through the connecting seat and connects to the drive seat. The screw shaft is... The cantilever structure features a horizontally positioned spiral shaft at the lower end of the storage hopper. It is composed of a spiral section 4-1, a transmission section 4-2, and a tail shaft section 4-3 connected in sequence. The spiral section is a variable-diameter, variable-pitch spiral shaft structure. One end of the spiral shaft extends into the rotating cylinder through the feed inlet on its side wall and connects to the spiral shaft drive mechanism. The rotating cylinder drive mechanism is mounted on a drive base. A top cover assembly 7 is located on the top of the rotating cylinder, connected to the upper end of the rotating cylinder via an anti-detachment limiting structure. A lubrication system is also installed on the drive base. This invention utilizes a cantilever structure for the spiral shaft. Driven by the rotating cylinder, the spiral shaft rotates 360° around the center of the storage hopper, achieving dynamic cleaning and discharge of the bottom area. It boasts advantages such as reasonable structure, high discharge efficiency, and convenient maintenance. Furthermore, the variable-diameter, variable-pitch spiral shaft structure ensures uniform material transport along the circumferential direction of the hopper bottom.

[0027] like Figure 2 , Figure 3 and Figure 6The rotating cylinder shown has two partition plates fixed from left to right: a first partition plate 8 on the left and a second partition plate 9 on the right. The feed inlet is connected to the internal space of the rotating cylinder to the left of the first partition plate. A large bearing seat 12 is fixed on the first partition plate through the cooperation of a front end cover 10 and a rear end cover 11. The transmission part of the spiral shaft is connected to the large bearing seat through a first bearing sleeved on it. A tail bearing seat 15 is fixed on the second partition plate through the cooperation of a connecting end cover 13 and a tail end cover 14. The tail shaft part of the spiral shaft is connected to the tail bearing seat through a second bearing sleeved on it. The bottom of the rotating cylinder is also connected to a discharge hopper 24 that communicates with the feed inlet.

[0028] like Figure 2 and Figure 5 The illustrated helical shaft drive mechanism comprises a main helical shaft drive motor 16, a first reducer, a chain 17, a small sprocket, and a large sprocket 18. The main drive motor is mounted on a drive base via the first reducer connected to it. The small sprocket is mounted on the output shaft of the first reducer, and the large sprocket is mounted on the transmission part of the helical shaft. The small sprocket is connected to the large sprocket via the chain. A chain tensioning device 19 connected to the chain is also installed on the drive base. In this invention, the rotary motor and the sprocket transmission device are arranged independently, and the chain is equipped with a tension adjustment device. This structure enhances practicality.

[0029] like Figure 5 The rotating cylinder drive mechanism shown includes a rotating cylinder drive motor 20, a second reducer, a pinion 21, and an external gear ring. The rotating cylinder drive motor is fixedly connected to the second reducer and is placed vertically. The output shaft of the rotating cylinder drive motor is connected to the input shaft of the second reducer. The second reducer is fixed to the drive seat through a reducer connecting plate. The pinion is mounted on the output shaft of the second reducer. The external gear ring is fixedly mounted on the outer wall of the connecting seat and meshes with the pinion.

[0030] like Figure 3 The lubrication system shown consists of a lubrication pump 22, a progressive distributor 23, and a hose assembly mounted on the drive unit. The inlet of the lubrication pump is connected to the lubricating fluid storage tank, and the outlet of the lubrication pump is connected to the large bearing housing, the tail bearing housing, the bearing housing, and the anti-detachment limiting structure via the progressive distributor and the hose assembly. This invention achieves timed, quantitative, and comprehensive lubrication through the lubrication pump and progressive distributor, thereby extending service life and significantly reducing downtime.

[0031] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. A surge bin screw outfeed apparatus characterized by: The system includes a basic steel frame (1), a rotating cylinder (2), a connecting seat (3), a helical shaft (4), and a drive assembly. The drive assembly consists of a drive seat (5) and a helical shaft drive mechanism and a rotating cylinder drive mechanism mounted on the drive seat. The connecting seat is fixed to the center of the bottom of the storage silo (6) via the basic steel frame. A bearing seat for rotating the cylinder is provided on the inner wall of the connecting seat. The rotating cylinder is connected to the bearing seat via an externally fitted bearing structure. The lower end of the rotating cylinder passes through the connecting seat and connects to the drive seat. The spiral shaft adopts a cantilever structure. The spiral shaft is horizontally set in the lower end of the storage hopper. It is composed of a spiral part (4-1), a transmission part (4-2) and a tail shaft part (4-3) connected in sequence. The spiral part is a spiral shaft structure with variable diameter and variable pitch. One end of the spiral shaft extends into the interior of the rotating cylinder along the feed port on the side wall and is connected to the spiral shaft drive mechanism. The rotating cylinder drive mechanism is installed on the drive seat. The top of the rotating cylinder is provided with a top cover assembly (7). The drive seat is also equipped with a lubrication system.

2. The surge bin screw outfeed apparatus of claim 1, wherein: The rotating cylinder is fixed with two partition plates from left to right. The two partition plates are a first partition plate (8) on the left and a second partition plate (9) on the right. The feed inlet is connected to the internal space of the rotating cylinder to the left of the first partition plate. A large bearing seat (12) is fixed on the first partition plate through the cooperation of the front end cover (10) and the rear end cover (11). The transmission part of the spiral shaft is connected to the large bearing seat through the first bearing sleeved on it. A tail bearing seat (15) is fixed on the second partition plate through the cooperation of the connecting end cover (13) and the tail end cover (14). The tail shaft part of the spiral shaft is connected to the tail bearing seat through the second bearing sleeved on it. The bottom of the rotating cylinder is also connected to a discharge hopper (24) that is connected to the feed inlet.

3. The surge bin screw outfeed apparatus of claim 2, wherein: The spiral shaft drive mechanism comprises a spiral shaft drive main motor (16), a first reducer, a chain (17), a small sprocket, and a large sprocket (18). The drive main motor is mounted on the drive seat via the first reducer connected to it. The small sprocket is mounted on the output shaft of the first reducer. The large sprocket is mounted on the transmission part of the spiral shaft. The small sprocket is connected to the large sprocket via the chain. The drive seat is also equipped with a chain tensioning device (19) connected to the chain.

4. The surge bin screw outfeed apparatus of claim 1, wherein: The rotating cylinder drive mechanism includes a rotating cylinder drive motor (20), a second reducer, a pinion (21), and an external gear ring. The rotating cylinder drive motor is fixedly connected to the second reducer and is placed vertically. The output shaft of the rotating cylinder drive motor is connected to the input shaft of the second reducer. The second reducer is fixed on the drive seat through a reducer connecting plate. The pinion is fitted on the output shaft of the second reducer. The external gear ring is fixedly fitted on the outer wall of the connecting seat and meshes with the pinion.

5. The surge bin screw outfeed apparatus of claim 1, wherein: The top cover assembly is connected to the upper end of the rotating cylinder through an anti-detachment limiting structure.

6. The surge bin screw outfeed apparatus of claim 1, wherein: The lubrication system consists of a lubrication pump (22), a progressive distributor (23), and a hose assembly mounted on the drive seat. The inlet of the lubrication pump is connected to the lubricating liquid storage tank, and the outlet of the lubrication pump is connected to the large bearing seat, the tail bearing seat, the bearing seat, and the anti-detachment limiting structure through the progressive distributor and the hose assembly.

Images