Feed raw material crushing device

Abstract

The utility model relates to a feed raw material crushing device which effectively solves the problem that a crusher is low in crushing efficiency. According to the technical scheme, the smashing device comprises a shell, a smashing unit is installed in the shell and comprises a horizontal rotating shaft and two rotating sleeves, the two rotating sleeves are installed on the left side wall and the right side wall of the shell through bearings respectively and are coaxial, the end of the rotating shaft coaxially penetrates through the rotating sleeve at the same end, spline grooves are formed in the inner walls of the rotating sleeves, splines are arranged on the outer wall of the rotating shaft, and the rotating shaft is connected with the spline grooves. The rotating shaft is matched with the rotating sleeve through splines; a reciprocating thread is arranged on the part, extending out of the rotating sleeve, of the left end of the rotating shaft, the threaded section of the rotating shaft is matched with a reciprocating nut, the reciprocating nut is fixed, a plurality of groups of radial crushing blades are uniformly distributed on the part, located in the shell, of the rotating shaft in the axial direction, and the crushing range of the crushing blades is expanded through axial reciprocating motion of the rotating shaft; the two groups of crushing units are arranged, and the rotating shafts of the crushing units can axially reciprocate, so that the crushing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of feed processing, and specifically relates to a feed raw material crushing device. Background Art

[0002] Livestock feed mainly uses crushed crop grains, stems, seedlings, etc. as raw materials; the utility model patent with the application number 201920106475.7 discloses a feed crusher, which is provided with a plurality of crushing knives on a cylinder body, and the raw materials are crushed by driving the crushing knives to rotate through the cylinder body. This is also the common form of the current crusher; although this crusher structure can improve the crushing efficiency by setting more crushing knives, the positions of its crushing blades are fixed, and the crushing efficiency needs to be further improved. Summary of the Invention

[0003] The utility model provides a feed raw material crushing device, aiming to solve the problem of low crushing efficiency of the crusher.

[0004] The technical solution it adopts includes a housing. A feeding port is arranged at the top of the housing, and a discharging port is arranged at the bottom. A crushing unit is installed inside the housing. The crushing unit includes a horizontal rotating shaft and two rotating sleeves. The two rotating sleeves are respectively installed on the left and right side walls of the housing through bearings, and the two rotating sleeves are coaxial. The end of the rotating shaft is coaxially inserted into the rotating sleeve at the same end. A spline groove is opened on the inner wall of the rotating sleeve, and a spline is arranged on the outer wall of the rotating shaft. The rotating shaft and the rotating sleeve are in spline fit; a reciprocating thread is arranged on the part of the left end of the rotating shaft extending out of the rotating sleeve, and the threaded section of the rotating shaft is matched with a reciprocating nut, and the reciprocating nut is fixed. A plurality of groups of radial crushing blades are evenly distributed along the axial direction on the part of the rotating shaft located inside the housing. The axial reciprocating movement of the rotating shaft will expand the crushing range of the crushing blades.

[0005] Two groups of the crushing units are provided.

[0006] The rotation directions of the two groups of the crushing units are opposite and the rotation speeds are the same. When the rotating shaft moves axially, the crushing blades of the two groups of the crushing units will never collide and interfere with each other.

[0007] A gear is fixed on the rotating sleeve in each group of the crushing units, and the gears on the two rotating sleeves are meshed and the transmission ratio is 1.

[0008] Sealing rings are installed between the rotating sleeve and the housing and between the rotating sleeve and the rotating shaft.

[0009] The utility model sets two groups of crushing units and the rotating shaft of the crushing unit can move axially back and forth, thereby greatly improving the crushing efficiency. Description of the Drawings

[0010] Figure 1 It is a top view cross-sectional view of the utility model.

[0011] Figure 2 For Figure 1 An enlarged view of position A in

[0012] Figure 3 Is the axial view of two groups of crushing blades. Specific embodiments

[0013] In combination with the attached drawings, the utility model includes a housing 1. A feeding port is provided at the top of the housing 1, and a discharging port is provided at the bottom. A crushing unit is installed inside the housing 1. The crushing unit includes a horizontal rotating shaft 2 and two rotating sleeves 3. The two rotating sleeves 3 are respectively installed on the left and right side walls of the housing 1 through bearings, and the two rotating sleeves 3 are coaxial. The end of the rotating shaft 2 is coaxially inserted into the rotating sleeve 3 at the same end. A spline groove 4 is formed on the inner wall of the rotating sleeve 3, and a spline 5 is provided on the outer wall of the rotating shaft 2. The rotating shaft 2 and the rotating sleeve 3 are matched through the spline 5, so that the rotating shaft 2 can axially move relative to the rotating sleeve 3, but cannot rotate relative to the rotating sleeve 3. A driving device is provided on one of the rotating sleeves 3, and the driving device drives the rotating sleeve 3 to rotate, thereby driving the rotating shaft 2 to rotate synchronously; A reciprocating thread 6 is provided on the part of the left end of the rotating shaft 2 extending out of the rotating sleeve 3. The threaded section of the rotating shaft 2 is matched with a reciprocating nut 7, and the reciprocating nut 7 is fixed. During the rotation of the rotating shaft 2, under the action of the reciprocating thread 6, it will perform axial reciprocating motion. A plurality of groups of radial crushing blades 8 are evenly distributed along the axial direction on the part of the rotating shaft 2 located inside the housing 1. The axial reciprocating motion of the rotating shaft 2 will expand the crushing range of the crushing blades 8.

[0014] Two groups of the crushing units are provided, which can further improve the crushing efficiency.

[0015] The rotation directions of the two groups of the crushing units are opposite and the rotation speeds are the same. When the rotating shaft 2 axially moves, the crushing blades 8 of the two groups of crushing units will never collide and interfere with each other.

[0016] A gear 9 is fixed on the rotating sleeve 3 in each group of the crushing units. The gears 9 on the two rotating sleeves 3 are meshed and the transmission ratio is 1. One of the rotating sleeves 3 is connected with a driving motor. The crushing blades 8 of the two groups of crushing units rotate in a manner similar to the meshing of the gears 9, which can ensure that the two groups of crushing blades 8 will not collide when the rotating shaft 2 axially moves.

[0017] Sealing rings 10 are installed between the rotating sleeve 3 and the housing 1 and between the rotating sleeve 3 and the rotating shaft 2 to prevent the material debris inside the housing 1 from entering the fitting gaps between the rotating sleeve 3 and the housing 1 or the rotating shaft 2.

[0018] When the utility model is in use, the raw materials to be pulverized are added into the housing 1 from the feed inlet. The driving motor of the rotating sleeve 3 is started. The rotating sleeve 3 drives the two rotating sleeves 3 to rotate through the meshing of the two gears 9. The rotating sleeve 3 drives the rotating shaft 2 to rotate through the spline 5. The pulverizing blades 8 on the two rotating shafts 2 pulverize the materials in the housing 1. While the rotating shaft 2 is rotating, under the cooperation of the reciprocating thread 6 and the reciprocating nut 7 on the rotating shaft 2, the rotating shaft 2 will perform an axial reciprocating motion, thereby driving the pulverizing blade 8 axially, expanding the pulverizing range of the pulverizing blade 8 and improving the pulverizing efficiency.

[0019] Through the axial reciprocating motion of the rotating shaft 2 of the pulverizing unit, the utility model improves the pulverizing range of the pulverizing blade 8 and the pulverizing efficiency. The setting of the two groups of pulverizing units further doubles the pulverizing efficiency, thereby greatly reducing the duration of the pulverizing process of the feed production raw materials.

Claims

1. A feedstock crushing device, comprising a housing (1), a feeding port is arranged at the top of the housing (1), a discharging port is arranged at the bottom, and a crushing unit is installed in the housing (1), characterized in that, The crushing unit includes a horizontal rotating shaft (2) and two rotating sleeves (3). The two rotating sleeves (3) are respectively installed on the left and right side walls of the housing (1) through bearings, and the two rotating sleeves (3) are coaxial. The end of the rotating shaft (2) is coaxially inserted into the rotating sleeve (3) at the same end. The inner wall of the rotating sleeve (3) is provided with a spline groove (4), and the outer wall of the rotating shaft (2) is provided with splines (5). The rotating shaft (2) and the rotating sleeve (3) are matched through the splines (5); a reciprocating thread (6) is provided on the part of the left end of the rotating shaft (2) extending out of the rotating sleeve (3). The threaded section of the rotating shaft (2) is matched with a reciprocating nut (7), and the reciprocating nut (7) is fixed. A number of groups of radial crushing blades (8) are evenly distributed along the axial direction on the part of the rotating shaft (2) located inside the housing (1). The axial reciprocating movement of the rotating shaft (2) will expand the crushing range of the crushing blades (8).

2. The feedstock crushing device according to claim 1, wherein There are two sets of the described crushing units.

3. A feedstock crushing device according to claim 2, wherein, The two sets of the described crushing units rotate in opposite directions and have the same rotational speed. When the rotating shaft (2) moves axially, the crushing blades (8) of the two sets of crushing units will never collide and interfere with each other.

4. A feedstock crushing device according to claim 3, characterized in that A gear (9) is fixed on the rotating sleeve (3) in each set of the crushing units. The gears (9) on the two rotating sleeves (3) are meshed and the transmission ratio is 1.

5. A feedstock crushing device according to claim 1, characterized in that, Sealing rings (10) are installed between the rotating sleeve (3) and the housing (1) and between the rotating sleeve (3) and the rotating shaft (2).

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