Hammer type crushing device for feed processing

By combining the cutting and striking action of hammer blades and cutters with the fine screening of grinding rollers and screens, the problem of incomplete pulverization in hammer mills is solved, achieving efficient particle uniformity and reducing clogging.

CN224142431UActive Publication Date: 2026-04-21CHANGSHA HUAGANG FEED CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHA HUAGANG FEED CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing hammer mills have the problem of incomplete pulverization in feed processing, with some feed failing to come into contact with the hammers, thus affecting the pulverization effect.

Method used

A hammer mill device was designed, which achieves a dual crushing effect of cutting and impacting through the cooperation of hammers and cutters. It further refines the particle screening by combining grinding rollers and screens, and uses a vibration component to prevent screen clogging.

Benefits of technology

It improves grinding efficiency, ensures particle uniformity, meets the requirements of high-precision feed, and reduces manual cleaning work.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of feed processing, in particular to a feed processing hammer piece type smashing device which comprises a machine shell, the bottom of the machine shell is designed to be round, first installation holes are formed in the circle centers of the two sides of the machine shell, and installation shafts are rotationally connected to the inner walls of the first installation holes through bearings. A rotating roller is fixedly mounted between one ends of the mounting shafts, a hammering assembly is arranged on the outer wall of the rotating roller, a first discharging opening is formed in the bottom of the machine shell, a rolling frame is fixedly mounted at the bottom of the first discharging opening, a second discharging opening is formed in the middle of the bottom of the rolling frame, and a screen is fixedly mounted at the top of the inner wall of the second discharging opening. According to the utility model, the double crushing effects of cutting and beating are realized, the feed is ground through the grinding roller, feed particles are further refined, the uniformity of the discharge granularity is ensured, the effects of preventing the screen mesh from being blocked and the materials from being retained are also realized, the screening and blanking are ensured to be smooth, and the manual cleaning is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of feed processing technology, specifically a feed processing hammer mill device. Background Technology

[0002] A hammer mill is a device that crushes materials through impact. It comes in single-rotor and double-rotor versions and is a primary crusher that directly crushes materials with a maximum particle size of 600-1800 mm to 25 mm or less. In the feed production industry, hammer mills are widely used in feed processing and play a crucial role in feed crushing.

[0003] Currently, existing hammer mills have revealed certain problems in actual feed processing: the existing mills have a relatively simple crushing structure, and they directly use hammers to impact the feed. Some feed does not come into contact with the hammers when it enters the machine, making it difficult to crush and thus affecting the crushing effect of the entire crushing device. Therefore, it is urgent to design a hammer mill for feed processing to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a hammer mill device for feed processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A feed processing hammer mill includes a housing. The bottom of the housing is designed in a circular shape, and first mounting holes are opened at the center of both sides of the housing. Mounting shafts are rotatably connected to the inner walls of the first mounting holes via bearings. A rotating roller is fixedly mounted at one end of each mounting shaft, and a hammering assembly is provided on the outer wall of the rotating roller. A first discharge port is opened at the bottom of the housing, and a crushing frame is fixedly mounted at the bottom of the first discharge port. A second discharge port is opened at the center of the bottom of the crushing frame, and a screen is fixedly mounted on the top of the inner wall of the second discharge port. A [further details about the screen are missing]. The screen is designed in an arc shape. Second mounting holes are provided on both sides of the crushing frame and both sides of the machine housing. The inner walls of the second mounting holes are rotatably connected to the drive shafts through bearings. A grinding roller is fixedly installed at one end of the drive shaft. The grinding roller is attached to the top center of the screen. A support frame is fixed at the bottom of the machine housing. A discharge hopper is fixedly installed at the bottom of the inner walls of the support frame. A vibration assembly for vibrating the screen and the discharge hopper is provided on the machine housing. A transmission assembly is provided at one end of the vibration assembly, the other end of one of the drive shafts, and the other end of one of the mounting shafts.

[0007] Furthermore, the hammering assembly includes multiple rows of cutters fixedly installed on the outer wall of the rotating roller and distributed at equal distances, with the same hammer blade installed at one end of each row of cutters.

[0008] Furthermore, the vibration assembly includes a third mounting hole on both sides of the housing, and the inner wall of the third mounting hole is rotatably connected to a connecting shaft via a bearing. A rotating rod is fixed in the middle of the connecting shaft. Multiple fixed plates are fixed to the outer wall of the rotating rod, and multiple movable plates are hinged to the outer wall of the rotating rod. A second spring is installed on one side of the movable plate and one side of the fixed plate, and a rubber striking rod is installed at one end of each movable plate.

[0009] Furthermore, the transmission assembly includes a small toothed pulley fixedly installed at the other end of one of the mounting shafts, and a large toothed pulley fixedly installed at the other end of one of the transmission shafts. A transmission toothed belt meshes between the large toothed pulley and the small toothed pulley. A drive gear is fixedly installed on one side of the large toothed pulley, and a driven gear is fixedly installed at one end of the connecting shaft. The driven gear meshes with the drive gear. A motor for driving the mounting shaft to rotate is fixedly installed on one outer wall of the housing.

[0010] Furthermore, a feed pipe is fixedly installed on the top of the housing, and a guide plate is fixedly installed on the inner wall of the top of the housing near the feed pipe.

[0011] Furthermore, an inclined crushing plate is hinged to the other side of the top inner wall of the machine housing near the feed pipe, and a first spring is fixedly installed on one side of the crushing plate and the inner wall of the machine housing.

[0012] Furthermore, a support frame is fixedly installed at the bottom of the support frame, and casters are fixedly installed at the four corners of the bottom of the support frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, the hammer blades and cutters work together. The cutters are arranged in multiple rows on the rotating roller to cut large pieces of feed, while the hammer blades are installed at one end of the cutter and rotate at high speed with the rotating roller to strike the material, achieving a dual crushing effect of cutting and striking, quickly crushing the feed and improving crushing efficiency.

[0015] In this invention, through the cooperation of the grinding roller and the screen, the crushed material enters the crushing frame through the first feeding port. The grinding roller rotates and crushes the material against the arc surface of the screen, and the screen screens out qualified feed particles, thereby further refining the feed particles, ensuring uniform particle size of the output, and meeting the requirements of high-precision feed.

[0016] In this invention, the vibration assembly works in conjunction with the screen and the discharge hopper. The connecting shaft drives the rotating rod to rotate, and the fixed plate, the movable plate, and the second spring cause the rubber striking rod to periodically strike the screen and the discharge hopper, preventing screen blockage and material retention, ensuring smooth screening and feeding, and reducing manual cleaning. Attached Figure Description

[0017] Figure 1 A perspective view of a hammer mill for feed processing.

[0018] Figure 2 A front sectional view of a hammer mill for feed processing.

[0019] Figure 3 A schematic diagram of the mounting shaft and cutter structure of a hammer mill for feed processing.

[0020] Figure 4 A schematic diagram of the transmission component structure of a hammer mill for feed processing.

[0021] Figure 5 A schematic diagram of the vibration component structure of a hammer mill for feed processing.

[0022] In the diagram: 1. Support frame; 2. Machine casing; 3. Feed pipe; 4. Motor; 5. Transmission assembly; 501. Small toothed pulley; 502. Transmission toothed belt; 503. Large toothed pulley; 504. Drive gear; 505. Driven gear; 6. Support frame; 7. Rotary roller; 8. Hammer; 9. Guide plate; 10. Crushing plate; 11. First spring; 12. Crushing frame; 13. Vibration assembly; 1301. Connecting shaft; 1302. Rotating rod; 1303. Rubber striking rod; 1304. Fixed plate; 1305. Second spring; 1306. Movable plate; 14. Discharge hopper; 15. Grinding roller; 16. Screen; 17. Mounting shaft; 18. Cutter. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5In this embodiment of the present invention, the feed processing hammer mill includes a housing 2. The bottom of the housing 2 is designed to be circular, and first mounting holes are provided at the center of both sides of the housing 2. The inner walls of the first mounting holes are rotatably connected to mounting shafts 17 via bearings. A rotating roller 7 is fixedly installed at one end of the mounting shaft 17, and a hammering assembly is provided on the outer wall of the rotating roller 7. The hammering assembly includes multiple rows of equally spaced cutters 18 fixedly installed on the outer wall of the rotating roller 7, and the same hammer blade 8 is installed at one end of the same row of cutters 18. A first feeding port is provided at the bottom of the housing 2, and a crushing frame 12 is fixedly installed at the bottom of the first feeding port. A second feeding port is provided at the middle of the bottom of the crushing frame 12, and a screen 16 is fixedly installed on the top of the inner wall of the second feeding port. The middle of screen 16 is designed as an arc shape. Second mounting holes are provided on both sides of the crushing frame 12 and both sides of the casing 2. The inner walls of these second mounting holes are rotatably connected to a drive shaft via bearings. A grinding roller 15 is fixedly mounted on one end of the drive shaft. The grinding roller 15 is attached to the top center of the screen 16. A support frame 1 is fixed to the bottom of the casing 2, and a discharge hopper 14 is fixedly mounted on the bottom of the inner walls of the support frame 1. A vibration assembly 13 for vibrating the screen 16 and the discharge hopper 14 is provided on the casing 2. The vibration assembly 13 includes third mounting holes on both sides of the casing 2, and a connecting shaft 1301 is rotatably connected to the inner wall of the third mounting holes via bearings. A rotating rod 1302 is fixed to the middle of the connecting shaft 1301, and multiple fixed... A fixed plate 1304 and a rotating rod 1302 are hinged to the outer wall of multiple movable plates 1306. A second spring 1305 is installed on one side of the movable plate 1306 and one side of the fixed plate 1304. A rubber striking rod 1303 is installed on one end of each movable plate 1306. The rubber striking rod 1303 periodically strikes the screen 16 and the inner wall of the discharge hopper 14, keeping the screen openings clear, preventing material accumulation, and promoting smooth discharge of material from the discharge hopper 14. A transmission assembly 5 is provided at one end of the vibration component 13, the other end of one of the drive shafts, and the other end of one of the mounting shafts 17. The transmission assembly 5 includes a small toothed pulley 501 fixedly installed on the other end of one of the mounting shafts 17, and a large toothed pulley 503 fixedly installed on the other end of one of the drive shafts. A transmission belt 502 meshes between the toothed pulley 503 and the small toothed pulley 501. A drive gear 504 is fixedly installed on one side of the large toothed pulley 503, and a driven gear 505 is fixedly installed on one end of the connecting shaft 1301. The driven gear 505 meshes with the drive gear 504. A motor 4 for driving the mounting shaft 17 to rotate is fixedly installed on one side of the outer wall of the housing 2. When the motor 4 is working, it also drives the transmission shaft to rotate, which in turn drives the grinding roller 15 to rotate. This causes the grinding roller 15 to roll against the top of the arc surface of the screen 16, thereby crushing and grinding the granular material accumulated on the screen 16. This allows fine particles that meet the particle size requirements to fall through the screen holes into the discharge hopper 14 below, further refining the feed particles and ensuring uniform discharge particle size to meet the requirements of high-precision feed.

[0025] Specifically, a feed pipe 3 is fixedly installed on the top of the housing 2, and a guide plate 9 is fixedly installed on the inner wall of the top of the housing 2 near the feed pipe 3, so that the feed falls along the inclined surface of the guide plate 9, which facilitates the hammer blade 8 to fully strike and process it.

[0026] Specifically, an inclined crushing plate 10 is hinged to the other side of the top inner wall of the casing 2 near the feed pipe 3, and a first spring 11 is fixedly installed on one side of the crushing plate 10 and the inner wall of the casing 2, so that the feed impacts the crushing plate 10 after being hit by the hammer blade 8, forming a hammer crushing effect.

[0027] Specifically, a support frame 6 is fixedly installed at the bottom of the support frame 1, and casters are fixedly installed at the four corners of the bottom of the support frame 6 to facilitate the flexible movement of the equipment in the processing site.

[0028] The working principle of this utility model is as follows: When in use, the motor 4 drives the mounting shaft 17 to rotate, which drives the rotating roller 7 to rotate at high speed. The cutter 18 and hammer 8 on the outer wall of the rotating roller 7 rotate synchronously. Then, the feed is put in through the feed pipe 3. The rotating cutter 18 cuts the feed into strips or small pieces. The rotating hammer 8 also hits the feed, causing it to hit the crushing plate 10 and be crushed into granules. The crushed feed falls from the first discharge port at the bottom of the casing 2 into the screen 16 inside the crushing frame 12. When the motor 4 is working, it drives the transmission shaft to rotate, which drives the grinding roller 15 to rotate. The grinding roller 15 rolls against the top of the arc surface of the screen 16, thereby crushing and grinding the granular material accumulated on the screen 16. The fine particles that meet the particle size requirements fall through the screen holes into the discharge hopper 14 below, while the larger particles continue to be crushed by the grinding roller 15 until they pass through the screen 16.

[0029] Furthermore, when the motor 4 is working, it also drives the connecting shaft 1301 to rotate, and the rotating rod 1302 on the connecting shaft 1301 rotates accordingly, driving the rubber striking rod 1303 to periodically strike the screen 16 and the inner wall of the discharge hopper 14, so that the screen holes remain unobstructed, preventing material accumulation, and promoting the smooth discharge of material in the discharge hopper 14.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A hammer mill for processing feed, comprising a housing (2), characterised in that: The bottom of the housing (2) is designed in a circular shape, and a first mounting hole is provided at the center of both sides of the housing (2). The inner wall of the first mounting hole is rotatably connected to the mounting shaft (17) through a bearing. A rotating roller (7) is fixedly installed at one end of the mounting shaft (17), and a hammering assembly is provided on the outer wall of the rotating roller (7). A first feeding port is provided at the bottom of the housing (2), and a crushing frame (12) is fixedly installed at the bottom of the first feeding port. A second feeding port is provided at the middle of the bottom of the crushing frame (12), and a screen (16) is fixedly installed on the top of the inner wall of the second feeding port. The middle of the screen (16) is designed in an arc shape. The two sides of the crushing frame (12) The housing (2) has second mounting holes on both sides, and the inner walls of the second mounting holes are rotatably connected to the drive shafts via bearings. A grinding roller (15) is fixedly installed between one end of the drive shaft. The grinding roller (15) is attached to the top center of the screen (16). A support frame (1) is fixedly installed at the bottom of the housing (2), and a discharge hopper (14) is fixedly installed at the bottom of the inner walls of the support frame (1). A vibration assembly (13) for vibrating the screen (16) and the discharge hopper (14) is provided on the housing (2), and a transmission assembly (5) is provided at one end of the vibration assembly (13), the other end of one of the drive shafts, and the other end of one of the mounting shafts (17).

2. A feed processing beater mill according to claim 1, characterised in that: The hammering assembly includes cutters (18) fixedly installed on the outer wall of the rotating roller (7) and arranged in multiple rows at equal distances, with the same hammer blade (8) installed at one end of the same row of cutters (18).

3. A feed processing beater mill according to claim 2, characterised in that: The vibration assembly (13) includes a third mounting hole on both sides of the housing (2), and the inner wall of the third mounting hole is rotatably connected to a connecting shaft (1301) via a bearing. A rotating rod (1302) is fixed in the middle of the connecting shaft (1301). Multiple fixing plates (1304) are fixed on the outer wall of the rotating rod (1302), and multiple movable plates (1306) are hinged to the outer wall of the rotating rod (1302). A second spring (1305) is installed on one side of the movable plate (1306) and one side of the fixing plate (1304). A rubber striking rod (1303) is installed on one end of each movable plate (1306).

4. A feed processing beater mill according to claim 3, characterised in that: The transmission assembly (5) includes a small toothed pulley (501) fixedly installed at the other end of one of the mounting shafts (17), and a large toothed pulley (503) fixedly installed at the other end of one of the transmission shafts. A transmission toothed belt (502) is engaged between the large toothed pulley (503) and the small toothed pulley (501). A drive gear (504) is fixedly installed on one side of the large toothed pulley (503), and a driven gear (505) is fixedly installed at one end of the connecting shaft (1301). The driven gear (505) meshes with the drive gear (504). A motor (4) for driving the mounting shaft (17) to rotate is fixedly installed on one side of the outer wall of the housing (2).

5. The feed processing hammermill according to claim 1 wherein: The top of the housing (2) is fixedly installed with a feed pipe (3), and a guide plate (9) is fixedly installed on the inner wall of the top of the housing (2) near the feed pipe (3).

6. The feed processing hammermill according to claim 1 wherein: An inclined crushing plate (10) is hinged to the other side of the top inner wall of the housing (2) near the feed pipe (3), and a first spring (11) is fixedly installed on one side of the crushing plate (10) and the inner wall of the housing (2).

7. The feed processing hammermill according to claim 1 wherein: The bottom of the support frame (1) is fixedly installed with a support frame (6), and the four corners of the bottom of the support frame (6) are all fixedly installed with casters.