Double-chain group type chain mill

Abstract

The utility model provides a double chain group type chain mill which comprises a machine shell and a driving mechanism, two groups of parallel rotors with opposite rotating directions are arranged in the machine shell, each rotor is provided with a plurality of chain groups, the plurality of chain groups on the same rotor comprise long chain groups and short chain groups which are distributed at intervals, and the long chain groups and the short chain groups are arranged on the machine shell. The multiple long chain sets and the multiple short chain sets are evenly distributed in the circumferential direction of the rotors, the two corresponding chain sets on the two rotors comprise one long chain set and one short chain set which are located in the same plane, and wear-resisting dispersion blocks are arranged at the ends of each long chain set and each short chain set. The material shearing and dispersing device can effectively improve the material shearing and dispersing effect and accelerate uniform material dispersion.

Description

Technical Field

[0001] This utility model relates to the field of chain mill technology, and in particular to a double-chain group chain mill. Background Technology

[0002] Chain mills are key crushing equipment in the fields of fertilizer, feed, and biomass energy. They crush materials by striking them with a high-speed rotating chain.

[0003] Most existing chain mills are single-rotor structures. The dispersion and crushing effect produced by a single rotor driving a chain is poor. Moreover, the chain length is fixed and the structure is simple. During the crushing process, the material is subjected to large differences in impact force, resulting in a wide range of output particle size distribution. Furthermore, the working efficiency is low because the crushing effect relies solely on the chain. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a double-chain chain mill. Through the reverse rotation effect generated by the dual rotors and multi-chain assembly structure, it achieves effective shearing and dispersion, thereby improving material crushing efficiency.

[0005] According to an embodiment of the present invention, a double-chain mill is provided, comprising a housing and a drive mechanism. The housing contains two sets of parallel rotors rotating in opposite directions. Each rotor has multiple sets of chains. The multiple sets of chains on the same rotor include alternating long chain sets and short chain sets. Each set of long chain sets and short chain sets has multiple sets and is evenly distributed along the circumference of the rotor. The two sets of chains on the two rotors include a set of long chain sets and a set of short chain sets located in the same plane. Each set of long chain sets and short chain sets has a wear-resistant dispersion block at its end.

[0006] Preferably, the rotor is provided with an elastic connector connected to each of the chain groups, and the distance between two adjacent chain groups on the two rotors is not less than the elastic displacement of the two elastic connectors.

[0007] More preferably, the rotor is provided with a guide hole along its radial direction, and the elastic connector includes a guide seat movably disposed in the guide hole, a movable cavity disposed in the guide seat, and a limiting rod fixed in the guide hole. The limiting rod passes through the end of the guide seat and extends into the movable cavity to be fixedly connected to a limiting block. The limiting block is connected to the movable cavity by a spring, and the guide seat is detachably connected to the chain assembly.

[0008] More preferably, the chain assembly includes a base chain and replaceable extension chains, the base chain is rotatably connected to the guide seat, the base chain is connected to the extension chains via pins, and each end of the extension chain is provided with the wear-resistant dispersion block.

[0009] More preferably, the drive mechanism includes a variable frequency motor, a reducer connected to the variable frequency motor, and a vibration sensor disposed at the bottom of the housing, wherein the output shaft of the reducer is connected to the rotor drive via a coupling.

[0010] More preferably, each of the wear-resistant dispersion blocks has a plurality of raised ribs on its surface.

[0011] In a further preferred embodiment, the housing is also provided with a screen surrounding the chain assembly, and the top of the screen is provided with an inlet and connected to a guide plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This application features a dual-rotor, multi-chain structure. The chain groups on the two rotors are long chain groups and short chain groups, and the two rotors rotate in opposite directions, which can produce an effective shearing effect and accelerate material dispersion. Wear-resistant dispersion blocks are set at the ends of each chain group. Through the action of the wear-resistant dispersion blocks, the material at the edge can be impacted and dispersed, ensuring uniform material dispersion and improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a double-chain group chain mill according to the present invention.

[0015] Figure 2 This is a schematic diagram of the internal cross-sectional structure of a double-chain chain mill according to the present invention.

[0016] Figure 3 This utility model Figure 2 A magnified schematic diagram of part A in the middle.

[0017] Figure 4 This is a top view schematic diagram of the rotor and chain assembly structure in a double-chain chain mill according to this utility model.

[0018] In the above figures: 1. Housing; 101. Screen; 102. Guide plate; 2. Drive mechanism; 201. Variable frequency motor; 202. Reducer; 203. Vibration sensor; 3. Rotor; 301. Guide hole; 310. Elastic connector; 311. Guide seat; 312. Movable cavity; 313. Limiting rod; 314. Limiting block; 315. Spring; 4. Chain assembly; 401. Base chain; 402. Extension chain; 403. Pin; 410. Long chain assembly; 420. Short chain assembly; 430. Wear-resistant dispersion block; 431. Protruding rib. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] This utility model provides an embodiment, such as Figure 1 , Figure 2 As shown, a double-chain mill includes a housing 1 and a drive mechanism 2. The housing 1 is characterized by having two sets of parallel rotors 3 rotating in opposite directions, with a speed difference of 50-100 rpm between the two rotors 3. Each rotor 3 is provided with multiple sets of chain groups 4. The multiple sets of chain groups 4 on the same rotor 3 include multiple sets of alternating long chain groups 410 and short chain groups 420. When the two rotors 3 drive the chain groups 4 to rotate, an effective shearing effect can be generated, which can disperse the material evenly.

[0021] Each set of long chain groups 410 and short chain groups 420 is provided in multiples and is evenly distributed along the circumference of the rotor 3. The two sets of chain groups 4 on the two rotors 3 include a set of long chain groups 410 and a set of short chain groups 420 located in the same plane. Each long chain group 410 and short chain group 420 is provided with a wear-resistant dispersion block 430 at its end. The wear-resistant dispersion block 430 has a certain weight.

[0022] When the wear-resistant dispersing block 430 rotates with the chain assembly 4, it has a large linear velocity, which can effectively strike the material and disperse it.

[0023] To prevent chain assembly 4 from experiencing excessive reaction force, in a further embodiment, such as... Figure 3 As shown, the rotor 3 is provided with an elastic connector 310 connected to each of the chain groups 4, and the distance between two adjacent chain groups 4 on the two rotors 3 is not less than the elastic displacement of the two elastic connectors 310.

[0024] As the rotational speed of rotor 3 increases, when chain assembly 4 overcomes the elastic force of elastic connector 310 to generate maximum displacement, chain assemblies 4 on two adjacent rotors 3 will not collide, ensuring shearing and dispersion effects.

[0025] Specifically, the rotor 3 is provided with a guide hole 301 along its radial direction. The elastic connector 310 includes a guide seat 311 movably disposed in the guide hole 301, a movable cavity 312 disposed in the guide seat 311, and a limiting rod 313 fixed in the guide hole 301. In this embodiment, the guide hole 301 and the guide seat 311 have square cross sections, which can limit the rotational movement of the guide seat 311. The limiting rod 313 passes through the end of the guide seat 311 and extends into the movable cavity 312, where a limiting block 314 is fixedly connected. The limiting block 314 is connected to the movable cavity 312 by a spring 315, and the spring 315 is sleeved on the limiting rod 313. The guide seat 311 is detachably connected to the chain assembly 4.

[0026] To facilitate the replacement of chain assemblies 4 of different lengths according to the materials, in a further embodiment, such as... Figure 4 As shown, the chain assembly 4 includes a base chain 401 and a replaceable extension chain 402. The base chain 401 is rotatably connected to the guide seat 311. In order to facilitate replacement and disassembly, the base chain 401 is connected to the extension chain 402 through a pin 403. Each end of the extension chain 402 is provided with the wear-resistant dispersion block 430.

[0027] To prevent excessive vibration in the chain mill due to its rotational speed, in a further embodiment, such as... Figure 1 As shown, the drive mechanism 2 includes a variable frequency motor 201, a reducer 202 connected to the variable frequency motor 201, and a vibration sensor 203 disposed at the bottom of the housing 1. The output shaft of the reducer 202 is connected to the rotor 3 via a coupling. When the vibration sensor 203 detects a large vibration, the speed of the variable frequency motor 201 is reduced.

[0028] In order to improve the dispersion effect of the wear-resistant dispersion block 430 on the material, in a further embodiment, each wear-resistant dispersion block 430 is provided with a plurality of raised ribs 431 on its surface.

[0029] In order to ensure that the material is fully dispersed before discharge, in a further embodiment, the casing 1 is also provided with a screen 101 surrounding the chain assembly 4. There is a certain distance between the chain assembly 4 and the inner wall of the screen 101 to avoid the chain assembly 4 from colliding with the inner wall of the screen 101 after displacement. The top of the screen 101 is provided with an inlet and connected to a guide plate 102.

[0030] Finally, it should be noted that 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 preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A double strand group mill comprising a housing (1), a drive mechanism (2), characterized in that, The shell (1) is internally provided with two groups of rotors (3) which are parallel and rotate in opposite directions, each rotor (3) is provided with a plurality of chain groups (4), the plurality of chain groups (4) on the same rotor (3) include long chain groups (410) and short chain groups (420) which are distributed alternately, each long chain group (410) and short chain group (420) is provided with a plurality of and uniformly distributed along the circumference of the rotor (3), the corresponding two chain groups (4) on the two rotors (3) include a long chain group (410) and a short chain group (420) which are located in the same plane, and the end of each long chain group (410) and short chain group (420) is provided with a wear-resistant dispersion block (430).

2. A duplex gang-type chain mill according to claim 1, characterized in that, The rotor (3) is provided with an elastic connecting piece (310) connected with each chain group (4), and the spacing between the two adjacent chain groups (4) on the two rotors (3) is not less than the elastic displacement amount of the two elastic connecting pieces (310).

3. A duplex sectional mill according to claim 2, characterised in that The rotor (3) is provided with a guide hole (301) along its radial direction, the elastic connecting piece (310) includes a guide seat (311) movably arranged in the guide hole (301), a movable cavity (312) arranged in the guide seat (311), a limiting rod (313) fixed in the guide hole (301), the end of the limiting rod (313) penetrates the guide seat (311) and extends into the movable cavity (312) to be fixedly connected with a limiting block (314), the limiting block (314) is connected with the movable cavity (312) through a spring (315), and the guide seat (311) is detachably connected with the chain group (4).

4. A duplex gang-type chain mill according to claim 3, wherein The chain group (4) includes a base chain (401) and a replaceable extension chain (402), the guide seat (311) is rotatably connected with the base chain (401), and the base chain (401) is connected with the extension chain (402) through a pin shaft (403), and the end of each extension chain (402) is provided with the wear-resistant dispersion block (430).

5. A double strand group mill according to any one of claims 1-4, characterized in that, The driving mechanism (2) includes a variable frequency motor (201), a speed reducer (202) connected with the variable frequency motor (201), and a vibration sensor (203) arranged at the bottom of the shell (1), and the output shaft of the speed reducer (202) is drivingly connected with the rotor (3) through a shaft coupling.

6. A duplex gang-type chain mill according to claim 5, wherein, The surface of each wear-resistant dispersion block (430) is provided with a plurality of convex ribs (431) which are arranged in protrusions.

7. A duplex gang-type chain mill according to claim 5 wherein, The shell (1) is further provided with a screen (101) surrounding the chain group (4), and the top of the screen (101) is provided with an inlet and connected with a guide plate (102).

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