A scraping vibration type powder wet granulator

Abstract

The utility model relates to powder granulation equipment technical field, concretely relates to a kind of scraping vibration type powder wet granulator, it includes: rack, driving motor, transmission mechanism, gear box, stirring assembly, feed hopper and vibration component, driving motor and transmission mechanism are fixedly installed at the top of rack, the output end of driving motor is connected with the input end of transmission mechanism, the output end of transmission mechanism is connected with gear box, stirring assembly is connected with the output end of gear box, feed hopper is located below stirring assembly, the bottom end of feed hopper is detachably installed with screen and discharge pipe in proper order through quick buckle, adopt multiple scraper to make compound planetary motion around central shaft, scraper trajectory covers all surface of screen, no residual dead angle, can completely scrape and remove adhering material, reduce raw material waste, scraper is connected by bolt with sleeve, screen is detachably connected using quick buckle, without disassembling complete machine or complex structure, scraper or screen can be quickly replaced, reduce downtime and labor intensity.

Description

Technical Field

[0001] This utility model relates to the technical field of gunpowder granulation equipment, specifically to a scraper-type wet granulation machine for gunpowder. Background Technology

[0002] Before gunpowder is loaded into cartridges, it must undergo granulation to ensure its combustion performance, packing density, and safety in use.

[0003] Currently, commonly used gunpowder wet granulation equipment mainly includes stirred granulators and extrusion granulators, but the following prominent problems exist in practical applications.

[0004] Traditional equipment suffers from an unreasonable mixing structure design, with dead angles between the scraper and the screen, causing residual material to easily adhere to the screen surface. This not only wastes raw materials but also affects the consistency of products from different batches. The mixing components and screens are often fixed or have complex connections, requiring the disassembly of the entire machine or key structures for replacement. This process is time-consuming and labor-intensive, severely impacting the efficiency of continuous production. Furthermore, the fixed or complex screen replacement makes it difficult to flexibly adjust the particle size distribution according to product requirements, limiting the equipment's process adaptability and product diversity. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a scraping vibration type wet granulation machine for gunpowder, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a scraping-type wet granulation machine for gunpowder, including: a frame, a drive motor, a transmission mechanism, a gearbox, a mixing assembly, a feeding hopper, and a vibration assembly. The frame is a welded or assembled steel structure, providing stable support for the overall equipment. The drive motor and the transmission mechanism are both fixedly installed on the top of the frame, providing stable power input. The output end of the drive motor is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the gearbox. The mixing assembly is connected to the output end of the gearbox. The feeding hopper is located below the mixing assembly, and a screen and a discharge pipe are detachably installed at the bottom of the feeding hopper via quick-release fasteners.

[0007] Furthermore, the transmission mechanism uses a gear steering device for transmission, and the gearbox is fixedly connected to the frame. The gearbox contains a drive gear, a gear ring, and a pinion.

[0008] Furthermore, the drive gear is fixedly connected to the output end of the transmission mechanism, the gear ring is fixedly connected inside the gearbox, and the pinions are symmetrically distributed between the drive gear and the gear ring.

[0009] Furthermore, the pinion is meshed with the drive gear and the gear ring respectively, and the mixing assembly includes a rotating shaft, a sleeve and a scraper, with the rotating shaft fixedly connected to the bottom end of the pinion.

[0010] Furthermore, a sleeve matching the rotating shaft is fitted onto the bottom end of the rotating shaft, and the sleeve and the rotating shaft are fixed together by fixing bolts. The scraper is detachably installed at the bottom end of the sleeve by fixing bolts.

[0011] Furthermore, the scraper is in contact with the surface of the screen, and there are two or more scrapers. When the scrapers rotate, they do not interfere with each other and can completely scrape the surface of the screen. The lower part of the feed hopper is a vertical cylindrical structure.

[0012] Furthermore, the vibration assembly is installed in the middle of the frame. The vibration assembly is made of elastic material or spring. The discharge pipe is fixedly connected to the frame through the vibration assembly, and a receiving device is provided below the discharge pipe.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art: 1. Multiple scrapers perform a compound planetary motion around a central axis, with the scraper trajectory covering the entire surface of the screen without any dead corners. This thoroughly removes adhering materials, reduces raw material waste, and ensures consistent particle size and process stability across different batches. The scrapers are connected to the sleeves via bolts, and the screen is detachably connected to the discharge pipe using quick-release clips. This allows for rapid replacement of scrapers or screens without disassembling the entire machine or complex structures, significantly reducing downtime and labor intensity, and adapting to the flexible production needs of multiple varieties and small batches. 2. The vibration component drives the screen to vibrate continuously through elastic materials or springs, effectively preventing wet materials from clogging the screen holes; at the same time, the scraper rotates in contact with the screen, forming a dual action of squeezing and shearing on the material, promoting uniform particle formation and forcing it through the screen, significantly improving granulation efficiency and product uniformity. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the feed hopper structure of this utility model; Figure 3 This is a schematic diagram of the gear set structure of this utility model; Figure 4This is a schematic diagram of the mixing component of this utility model.

[0016] The labels in the diagram represent: 1. Frame; 2. Drive motor; 3. Transmission mechanism; 4. Gearbox; 401. Drive gear; 402. Gear ring; 403. Pinion; 5. Mixing assembly; 501. Rotating shaft; 502. Sleeve; 503. Scraper; 6. Feed hopper; 7. Screen; 8. Vibration assembly; 9. Discharge pipe; 10. Receiving device. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the embodiments.

[0019] Example 1: Reference Figure 1-4 This first embodiment of the present invention discloses a scraping-type wet granulation machine for gunpowder, comprising: a frame 1, a drive motor 2, a transmission mechanism 3, a gearbox 4, a mixing assembly 5, a feeding hopper 6, and a vibration assembly 8. The frame 1 is a welded or assembled steel structure, providing stable support for the overall equipment. The drive motor 2 and the transmission mechanism 3 are both fixedly installed on the top of the frame 1, providing stable power input. The output end of the drive motor 2 is connected to the input end of the transmission mechanism 3, and the output end of the transmission mechanism 3 is connected to the gearbox 4. The mixing assembly 5 is connected to the output end of the gearbox 4. The feeding hopper 6 is located below the mixing assembly 5, and the bottom end of the feeding hopper 6 is detachably installed with a screen 7 and a discharge pipe 9 via quick-release fasteners.

[0020] Multiple scrapers 503 are used to perform a compound planetary motion around the central axis. The trajectory of the scrapers 503 covers the entire surface of the screen 7, leaving no dead corners and thoroughly scraping off the attached material, reducing raw material waste, and ensuring the consistency of particle size and process stability of different batches of products. The scrapers 503 are connected to the sleeve 502 by bolts, and the screen 7 is detachably connected to the feed hopper 6 by quick buckles. The scrapers 503 or screen 7 can be quickly replaced without disassembling the whole machine or complex structure, which greatly reduces downtime and labor intensity and adapts to the flexible production needs of multiple varieties and small batches.

[0021] Example 2: Reference Figure 1-4This is the second embodiment of the present invention, which differs from the first embodiment in that: The transmission mechanism 3 uses a gear steering device for transmission. The gearbox 4 is fixedly connected to the frame 1. The gearbox 4 is equipped with a drive gear 401, a gear ring 402 and a pinion 403. The drive gear 401 is fixedly connected to the output end of the transmission mechanism 3. The gear ring 402 is fixedly connected inside the gearbox 4. The pinion 403 is symmetrically distributed between the drive gear 401 and the gear ring 402. The symmetrical distribution of the pinion 403 makes the pressure of the scraper 503 on the screen 7 more uniform, the wear more consistent, and the life of the screen 7 extended. The compound motion makes the material subjected to shearing and squeezing on the screen 7 more complete, which is conducive to the formation of uniform particles. The pinion 403 is meshed with the drive gear 401 and the gear ring 402 respectively. The mixing assembly 5 includes a rotating shaft 501, a sleeve 502 and a scraper 503. The rotating shaft 501 is fixedly connected to the bottom end of the pinion 403.

[0022] The bottom end of the rotating shaft 501 is fitted with a sleeve 502 that matches the rotating shaft 501. The sleeve 502 and the rotating shaft 501 are fixed by fixing bolts. The non-cylindrical cross section ensures effective torque transmission and prevents the scraper 503 from slipping under resistance. The bolt fixing method is firm and ensures that the scraper 503 can be easily disassembled and replaced. The scraper 503 is detachably installed at the bottom end of the sleeve 502 by fixing bolts. The scraper 503 is in contact with the surface of the screen 7. There are two or more scrapers 503. When the scrapers 503 rotate, they do not interfere with each other and can completely scrape the surface of the screen 7. The compound movement of multiple scrapers 503 can cover the entire surface of the screen 7 without leaving any dead corners. The lower part of the feed hopper 6 is a vertical cylindrical structure.

[0023] The vibration component 8 is installed in the middle of the frame 1. The vibration component 8 is made of elastic material or spring. It is linked with the screen 7 through the elastic material or spring. The continuous vibration ensures that the screen holes are unobstructed, which fundamentally solves the most common clogging problem in wet granulation and ensures continuous production. The vibration helps the particles to leave the screen 7 smoothly, making the particles more regular and the particle size distribution more concentrated. The discharge pipe 9 is fixedly connected to the frame 1 through the vibration component 8. A receiving device 10 is set below the discharge pipe 9 to receive the finished material after granulation, which is convenient for transfer and subsequent processing.

[0024] The vibration component 8 drives the screen 7 to vibrate continuously through elastic material or spring, effectively preventing wet materials from clogging the screen holes; at the same time, the scraper 503 rotates in contact with the screen 7, forming a dual action of squeezing and shearing on the material, promoting uniform particle formation and forcing it to pass through the screen 7, significantly improving granulation efficiency and product regularity.

[0025] The remaining structure is the same as that in Example 1.

[0026] The workflow of this utility model is as follows: First, after confirming that the frame 1 is placed securely, start the drive motor 2. The power of the drive motor 2 is reduced and the torque is increased through the transmission mechanism 3 with a gear steering device, and then transmitted to the drive gear 401 of the gearbox 4. The drive gear 401 drives multiple meshing pinions 403 to perform compound planetary motion around the fixed gear ring 402. At the same time, the mixed gunpowder wet material is added into the equipment through the feed hopper 6, and the material falls onto the screen 7 at the bottom of the equipment. Secondly, the compound planetary motion of the pinion 403 is transmitted to the sleeve 502 through the rotating shaft 501 fixed at its bottom end, which in turn drives multiple scrapers 503 bolted to the bottom of the sleeve 502 to move synchronously. The scrapers 503 closely adhere to the surface of the screen 7 and move in a compound trajectory, scraping the material without dead angles and generating continuous compression and shearing action on the material. At the same time, the vibration component 8 installed in the middle of the frame 1 drives the screen 7 to generate continuous micro-vibration. Under the combined action of the scraping force and compression force of the scrapers 503 and the vibration of the screen 7, the wet material is forced to be squeezed, sheared and passed through the screen holes to form uniform particles. Finally, the granular finished product extruded from the screen 7 falls into the discharge pipe 9 below under the action of gravity and vibration, and finally falls into the receiving device 10 placed below the discharge pipe 9 for collection, so as to carry out subsequent transfer, drying and other processing processes. After granulation, the scraper 503 and screen 7 can be easily disassembled for cleaning or replacement, in preparation for the next batch of production.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A scraper-type wet granulation machine for gunpowder, characterized in that, include: The machine includes a frame (1), a drive motor (2), a transmission mechanism (3), a gearbox (4), a mixing assembly (5), a feeding hopper (6), and a vibration assembly (8). The frame (1) is a welded or assembled steel structure that provides stable support for the overall equipment. The drive motor (2) and the transmission mechanism (3) are both fixedly installed on the top of the frame (1) to provide stable power input. The output end of the drive motor (2) is connected to the input end of the transmission mechanism (3). The output end of the transmission mechanism (3) is connected to the gearbox (4). The mixing assembly (5) is connected to the output end of the gearbox (4). The feeding hopper (6) is located below the mixing assembly (5). The bottom of the feeding hopper (6) is detachably fitted with a screen (7) and a discharge pipe (9) via quick-release buckles.

2. The scraper-type wet granulation machine for gunpowder according to claim 1, characterized in that, The transmission mechanism (3) uses a gear steering device for transmission. The gearbox (4) is fixedly connected to the frame (1). The gearbox (4) is equipped with a drive gear (401), a gear ring (402), and a pinion (403).

3. The scraper-type wet granulation machine for gunpowder according to claim 2, characterized in that, The drive gear (401) is fixedly connected to the output end of the transmission mechanism (3), the gear ring (402) is fixedly connected inside the gearbox (4), and the pinion (403) is symmetrically distributed between the drive gear (401) and the gear ring (402).

4. A scraper-type wet granulation machine for gunpowder according to claim 3, characterized in that, The pinion (403) is meshed with the drive gear (401) and the gear ring (402) respectively. The mixing assembly (5) includes a rotating shaft (501), a sleeve (502) and a scraper (503). The rotating shaft (501) is fixedly connected to the bottom end of the pinion (403).

5. A scraper-type wet granulation machine for gunpowder according to claim 4, characterized in that, The bottom end of the rotating shaft (501) is fitted with a sleeve (502) that matches the rotating shaft (501). The sleeve (502) and the rotating shaft (501) are fixed together by fixing bolts. The scraper (503) is detachably installed at the bottom end of the sleeve (502) by fixing bolts.

6. A scraper-type wet granulation machine for gunpowder according to claim 5, characterized in that, The scraper (503) is attached to the surface of the screen (7). There are two or more scrapers (503). When the scrapers (503) rotate, they do not interfere with each other and can completely scrape the surface of the screen (7). The lower part of the feed hopper (6) is a vertical cylindrical structure.

7. A scraper-type wet granulation machine for gunpowder according to claim 1, characterized in that, The vibration component (8) is installed in the middle of the frame (1). The vibration component (8) is made of elastic material or spring. The discharge pipe (9) is fixedly connected to the frame (1) through the vibration component (8). A receiving device (10) is provided below the discharge pipe (9).

Images