CN210994551U - Rotor structure of high-fine crusher - Google Patents

Abstract

The utility model discloses a rotor structure of height thin breaker belongs to the crushing machine field. The rotor comprises a main shaft, a rotor body, a hammer and an end cover, wherein rotor throwing plates and a rotor cylinder body are arranged on the main shaft and the rotor body, and an expansion sleeve is arranged in the rotor cylinder body and connected with the main shaft. Three driving hammers are arranged on each rotor flail plate. The advantage of this structure lies in, and the tight cover that expands has the characteristic of bearing high moment of torsion load, has born the moment of torsion that the fine breaker rotor of height received at the during operation, has reduced the work probability of inefficacy of rotor block and main shaft, and the routine maintenance is convenient.

Description

Rotor structure of high-fine crusher

Technical Field

The utility model relates to a crushing machine field, concretely relates to rotor structure of high and thin breaker.

Background

The high-fine crusher (hereinafter referred to as high-fine crusher) is widely applied to industries such as mines, chemical engineering, buildings and the like, is suitable for fine crushing and sand making operation of stone materials such as highways, railways, hydroelectric engineering and the like, and the high-fine crusher mainly adopts the working principle that a motor drives a main shaft to drive a rotor frame connected to the main shaft to do circular motion and drives a hammer installed on the rotor frame to rotate at high speed, so that the high-fine crusher performs impact, shearing and extrusion crushing effects on ore materials entering a crushing cavity of the crusher to achieve the purpose of highly fine crushing of the stone materials.

The rotor is a high and thin broken core component, the existing rotor structure mainly comprises a main shaft, a rotor throwing plate and a hammer, wherein the hammer and the rotor throwing plate are connected and fastened by adopting a special bolt and a locknut, the rotor throwing plate is connected with the main shaft through a common flat key to realize rotary motion and transmit torque, the round nut is used for axial fixation, when the hammer is under the action of strong impact load for a long time during working, the flat key structure between the rotor throwing plate and the main shaft is easy to lose efficacy, and the rotor throwing plate slips and displaces on the main shaft, so that the function of the whole rotor is lost, and the equipment cannot normally work.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a high and thin broken rotor structure.

The utility model adopts the technical proposal that:

a high and fine broken rotor structure comprises a main shaft (1), a rotor body (2), a hammer (3), an expansion sleeve (101), a screw (102), an end cover (4) and a special bolt (103).

The rotor body (2) is formed by combining and welding a plurality of rotor throwing plates (22) and a rotor cylinder body (23), and expansion sleeve mounting positions (201) and end cover screw holes (202) at two ends are machined after welding.

After the main shaft (1) is arranged in an inner hole of the rotor body (2), the two ends of the main shaft are connected and fastened by an expansion sleeve (101) and positioned for transmitting power and torque; and then the end cover (4) is fastened in place by the socket head cap screws (102) and used for preventing dust and protecting the expansion sleeve.

Compared with the prior art, the utility model has the advantages of: the rotor body (2) and the main shaft (1) are connected and positioned through an expansion sleeve (101). When the high and fine crushing machine works, the output torque of the motor is transmitted to the rotor body (2) by the main shaft (1) through the expansion sleeve (101) to rotate at a high speed, so that the driving hammer (3) fastened on the rotor flail plate (22) through the special bolt (104) and the locknut (103) is driven to do high-speed circular motion, and impact load generated when the hammer (3) strikes impact materials is transmitted to bearing seats at two ends of the main shaft (1) through the rotor body (2) and the expansion sleeve (101). Because the ability that tight cover structure transmission moment of torsion and bear impact and alternating load that expands is higher than traditional keyway structure, the reliability is high moreover, has reduced the main shaft work condition of failure, in addition, the high thin broken rotor adopts tight cover connected mode that expands more to be favorable to the processing, the assembly of main shaft and relevant part. And the replacement and the disassembly are convenient during the maintenance, and the maintenance time and the maintenance cost of the daily equipment are reduced.

Drawings

Fig. 1 is a schematic structural view of a conventional high and fine breaking rotor.

Fig. 2 is a schematic view of the high and fine breaking rotor structure of the present invention.

Fig. 3 is a schematic structural diagram of the rotor body of the present invention.

In the figure: 1-main shaft, 2-rotor body, 3-hammer, 4-end cover, 22-rotor swing plate, 23-rotor cylinder, 101-expansion sleeve, 102-screw, 103-locknut, 104-special bolt, 201-end cover screw hole and 202-expansion sleeve mounting position.

Detailed Description

The details of the present invention and its embodiments are further described below with reference to the accompanying drawings.

Referring to fig. 2 to 3, the utility model discloses a broken main shaft structure of height and fineness, including main shaft (1), rotor body (2), hammer (3), end cover (4), bloated cover (101), screw (102), locknut (103), special bolt (104), wherein the rotor body is formed by many rotor flappers (22) and rotor barrel (23) combination welding, rotor flappers (22) are with Q235 steel sheet numerical control cutting unloading postprocessing hammer (3) connecting bolt via hole, rotor barrel (23) material is thick wall seamless steel pipe, after the welding, reprocessing rotor body hole both ends bloated cover installation position (201) and end plate (4) connecting screw hole put in place earlier during rotor assembly pack main shaft (1) rotor body (2) hole, pack bloated cover (101) into bloated cover installation position (202) at rotor barrel (23) both ends again and with main shaft (1) confirm the locking screw on the bloated cover (101) realize bloated tightly after the axial position size with main shaft (1) to tighten Functional, then end caps are fitted on both ends and fastened with screws (102).

The above description is only a preferred example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. A rotor structure of a high and fine crusher is characterized in that: the rotor comprises a main shaft (1), a rotor body (2), a hammer (3), an end cover (4), a rotor throwing plate (22), a rotor cylinder (23), an expansion sleeve (101), a screw (102), a locknut (103) and a special bolt (104), wherein the rotor body is formed by connecting a plurality of rotor throwing plates (22) and the rotor cylinder (23) in a welding mode; after the main shaft (1) is arranged in an inner hole of the rotor cylinder (23), the main shaft is fixed and expanded by an expansion sleeve (101), and then the end covers are connected and fixed on screw holes (201) at two ends of the rotor body (2) through screws (102); the hammer (3) is connected and fastened with the rotor flail plate (22) through a locknut (103) and a special bolt (104).

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