CN216099151U - Rotary cutter granulator with main shaft not prone to overheating - Google Patents

Abstract

The utility model belongs to the field of granulation equipment, and particularly relates to a rotary cutter granulator with a main shaft not easy to overheat. The rotary cutter device comprises a main box body, a main shaft, a rotary cutter assembly, a static cutter assembly, a screen, a discharging hopper and a power assembly. A transverse main shaft is arranged in the main box body, and material blocking rings, a bearing seat, a bearing and a bearing gland are sequentially arranged on two sides of the main shaft. The stop ring is composed of two parts with the same shape, namely a first semicircular stop shell and a second semicircular stop shell, and two positioning holes are formed in two side faces of the main shaft respectively. The material blocking ring can prevent small particle products from flying out, so that the gap between the main shaft and the main box body can be properly increased, and overheating during operation is avoided. The positioning holes on the side surfaces of the main shafts can ensure high concentricity of the whole main shafts after processing, so that the main shafts are stable and can not be overheated when the granulator runs. The material blocking ring is changed into a two-half structure from an integral structure, so that the material blocking ring is convenient to disassemble, replace and install. Through above technical scheme, the problem that the main shaft easily generates heat when a rotary cutter granulator in the prior art operates is solved.

Description

Rotary cutter granulator with main shaft not prone to overheating

Technical Field

The utility model belongs to the field of granulation equipment, and particularly relates to a rotary cutter granulator with a main shaft not easy to overheat.

Background

A rotary cutter granulator is a secondary granulation device. After products such as chemical plastics, rubber and plastics, polymers and the like are subjected to primary cutting, the particles are still large and do not meet the requirement of the final particle size, and a rotary cutter granulator is required for secondary granulation. The working principle of the rotary knife granulator is that a rotary knife (also called a moving knife) rotates at a high speed and is matched with a fixed static knife fixed around to cut materials.

However, the main shaft of the existing rotary cutter granulator has the following problems: 1. a certain gap needs to be reserved between the main shaft and the box body shell for the rotation of the main shaft, if the gap is too large, products with small particle sizes fly out through the gap at a high speed, so that the equipment is damaged, and the products need to be frequently disassembled and cleaned after long-term use; if the gap is designed to be too small, the running friction of the equipment is increased, the temperature is rapidly raised, the part is expanded due to the temperature rise, the problem is aggravated, the running temperature is always over 100 ℃, the energy is wasted, the efficiency is reduced, and the gap is unsafe; 2. the main shaft is cylindrical, the concentricity of the whole shaft needs to be ensured, otherwise peripheral parts can be rubbed during operation to cause overheating, but the length of the main shaft is usually about 2 meters, and when one side of the boring machine is machined and the other side of the boring machine is machined during machining, the working conditions and the machining effect on the two sides are difficult to ensure to be consistent, and the concentricity is difficult to ensure; 3. spare and accessory parts on two sides of the main shaft are more, and the disassembly, the replacement and the assembly of accessories such as a material blocking ring are more complex and inefficient.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a rotary cutter granulator with a main shaft not easy to overheat, which solves the problems that the clearance between the main shaft and a box body shell is difficult to control and is easy to heat, the concentricity of the main shaft is not high and is easy to heat, and parts are complex to disassemble, replace and assemble, and the efficiency is low.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme:

a rotary cutter granulator with a main shaft not easy to overheat comprises a main box body, the main shaft, a rotary cutter assembly, a static cutter assembly, a screen, a discharging hopper and a power assembly. A transverse main shaft is arranged in the main box body, a rotary cutter assembly capable of rotating along with the axial direction of the main shaft is arranged on the main shaft, a static cutter assembly is fixed on the side surface in the main box body, a screen and a blanking hopper are sequentially arranged below the main shaft, the power assembly is arranged outside the main box body, the output end of the power assembly is connected with the main shaft,

the novel bearing is characterized in that material blocking rings, bearing seats, bearings and bearing glands are sequentially arranged on two sides of the main shaft. The material blocking ring, the bearing seat and the bearing are all annular, are sequentially sleeved on two sides of the main shaft, and are fixedly connected with the main box body, and the bearing gland is circular and is pressed on the bearing seat.

Preferably, the material blocking ring is composed of two parts with the same shape, namely a semicircular first material blocking shell and a semicircular second material blocking shell, a screw hole is formed in each of two joints of the first material blocking shell, and a screw is formed in each of two joints of the second material blocking shell.

Preferably, two positioning holes are formed in each of the two side faces of the spindle, the two side faces are in mirror symmetry, and the circle centers of the two positioning holes and the circle center of the side face of the spindle are not on the same straight line on each side face.

(III) advantageous effects

Compared with the prior art, the utility model has the following beneficial effects:

the material blocking ring is arranged between the gap between the main shaft and the main box body and the bearing seat, so that small particle products can be prevented from flying out, the gap between the main shaft and the main box body can be properly increased, and the phenomenon that the operation of equipment is influenced by the expansion of parts such as balls due to overheating during operation is avoided.

Two locating holes are respectively arranged on two side faces of the main shaft, so that when the main shaft is machined, one side can be bored firstly, then the workbench is rotated, and the locating holes are used for locating, so that the working conditions of two sides are consistent and the positions of the two sides can not be changed when the two sides are machined, dislocation is prevented, the concentricity of the whole main shaft is high, and the main shaft is stable and can not be overheated when a granulator runs.

Keep off the material circle and change two half formula structures by overall structure, convenient to detach changes the installation, when equipment need change inside rotating cutter subassembly or overhaul, need not all demolish all spare parts, only need with half fender material shell unpack apart can, spare and accessory dismantles to change the assembly more simply high-efficient.

Drawings

Fig. 1 is a schematic front view of embodiment 1 of the present invention;

FIG. 2 is a schematic side view of a rotary cutter assembly and a stationary cutter assembly according to embodiment 1 of the present invention;

fig. 3 is an enlarged schematic structural view of a portion a on both sides of the spindle in fig. 1 according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a two-part material retaining ring in embodiment 2 of the present invention;

fig. 5 is a schematic view of positioning hole structures on two sides of the spindle according to embodiment 3 of the present invention.

In the figure: 1. a main box body; 2. a main shaft; 3. a rotary cutter assembly; 4. a stationary knife assembly; 5. screening a screen; 6. feeding a hopper; 7. a power assembly; 8. a material blocking ring; 9. a bearing seat; 10. a bearing; 11. a bearing gland; 12. a first material blocking shell; 13. a second material retaining shell; 14. a screw hole; 15. a screw; 16. and (7) positioning the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1 to 3, the present invention provides the following technical solutions:

a rotary cutter granulator with a main shaft not easy to overheat comprises a main box body 1, a main shaft 2, a rotary cutter assembly 3, a static cutter assembly 4, a screen 5, a blanking hopper 6 and a power assembly 7, wherein the main shaft 2 is transversely arranged in the main box body 1, the rotary cutter assembly 3 capable of axially rotating along with the main shaft 2 is arranged on the main shaft 2, the static cutter assembly 4 is fixed on the side surface inside the main box body 1, the screen 5 and the blanking hopper 6 are sequentially arranged below the main shaft 2, the power assembly 7 is arranged outside the main box body 1, the output end of the power assembly is connected with the main shaft 2,

the material blocking ring 8, the bearing seat 9, the bearing 10 and the bearing gland 11 are sequentially installed on two sides of the main shaft 2, the material blocking ring 8, the bearing seat 9 and the bearing 10 are annular, are sequentially sleeved on two sides of the main shaft 2, the bearing seat 9 is fixedly connected with the main box body 1, and the bearing gland 11 is circular and is used for pressing the bearing 10 on the bearing seat 9.

Has the advantages that: the material blocking ring is arranged between the gap between the main shaft and the main box body and the bearing seat, so that small particle products can be prevented from flying out, the gap between the main shaft and the main box body can be properly increased, and the situation that the operation of equipment is influenced by the expansion of parts such as balls due to overheating during operation is avoided.

Example 2

Referring to fig. 4, the present invention provides the following technical solutions:

preferably, as in embodiment 1, the material blocking ring 8 is composed of two parts with the same shape, and is respectively a semicircular first material blocking shell 12 and a semicircular second material blocking shell 13, two interfaces of the first material blocking shell 12 are respectively provided with a screw hole 14, and two interfaces of the second material blocking shell 13 are respectively provided with a screw 15.

Has the advantages that: keep off the material circle and change two half formula structures by overall structure, convenient to detach changes the installation, when equipment need change inside rotating cutter subassembly or overhaul, need not all demolish all spare parts, only need with half fender material shell unpack apart can, spare and accessory dismantles to change the assembly more simply high-efficient.

Example 3

Referring to fig. 5, the present invention provides the following technical solutions:

preferably, two positioning holes 16 are respectively formed in two side surfaces of the main shaft 2 according to any one of embodiments 1 and 2, the two side surfaces are mirror-symmetrical, and three points of the centers of the two positioning holes 16 and the center of the side surface of the main shaft 2 are not on the same straight line on each side surface.

Has the advantages that: two locating holes are respectively arranged on two side faces of the main shaft, so that when the main shaft is machined, one side can be bored firstly, then the workbench is rotated, and the locating holes are used for locating, so that the working conditions of two sides are consistent and the positions of the two sides can not be changed when the two sides are machined, dislocation is prevented, the concentricity of the whole main shaft is high, and the main shaft is stable and can not be overheated when a granulator runs.

The above 3 embodiments solve the problems that in the prior art, the clearance between the main shaft and the box body shell is difficult to control, the main shaft is easy to generate heat, the concentricity of the main shaft is not high, the parts are easy to disassemble, replace and assemble, and the assembly is complex and low in efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. A rotary cutter granulator with a main shaft not easy to overheat comprises a main box body (1), the main shaft (2), a rotary cutter assembly (3), a static cutter assembly (4), a screen (5), a blanking hopper (6) and a power assembly (7), wherein the main shaft (2) is transversely arranged in the main box body (1), the rotary cutter assembly (3) capable of axially rotating along with the main shaft (2) is installed on the main shaft (2), the static cutter assembly (4) is fixed on the inner side surface of the main box body (1), the screen (5) and the blanking hopper (6) are sequentially arranged below the main shaft (2), the power assembly (7) is arranged outside the main box body (1), and the output end of the power assembly is connected with the main shaft (2),

its characterized in that, main shaft (2) both sides all install in proper order and keep off material circle (8), bearing frame (9), bearing (10), bearing gland (11), keep off material circle (8), bearing frame (9) and bearing (10) all are cyclic annularly, and the suit is in main shaft (2) both sides in proper order, bearing frame (9) and main tank body (1) fixed connection, bearing gland (11) are circular, with bearing (10) gland on bearing frame (9).

2. The rotary cutter granulator with a main shaft not easy to overheat as claimed in claim 1, wherein: keep off material circle (8) and constitute by two parts that the shape is the same, be semicircular first fender material shell (12) and semicircular second fender material shell (13) respectively, two knecks of first fender material shell (12) respectively are equipped with a screw (14), and two knecks of second fender material shell (13) respectively are equipped with a screw (15).

3. A rotary cutter granulator with a main shaft which is not easily overheated as claimed in any one of claims 1 or 2, characterized in that: two side faces of the main shaft (2) are respectively provided with two positioning holes (16) which are in mirror symmetry, and on each side face, the circle centers of the two positioning holes (16) and the circle center of the side face of the main shaft (2) are not on the same straight line.

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