CN219452814U

CN219452814U - Shaft mechanism convenient to disassemble

Info

Publication number: CN219452814U
Application number: CN202320627119.6U
Authority: CN
Inventors: 马平; 王海美; 张海龙
Original assignee: NINGXIA NORTHWEST HORSE ELECTRIC MANUFACTURING CO LTD
Current assignee: NINGXIA NORTHWEST HORSE ELECTRIC MANUFACTURING CO LTD
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-08-01
Anticipated expiration: 2033-03-28

Abstract

The utility model provides a convenient axle mechanism who dismantles, relates to motor technical field, including the hollow shaft, the moment of torsion axle, clutch shaft and clutch handle, the moment of torsion axle includes stress groove, real core and hollow portion, stress groove respectively with real core and hollow portion fixed connection, the internal thread is seted up to the central point of solid and stress groove link, stress groove, real core and hollow portion are joined in marriage and are adorned in the hollow shaft, the hollow shaft outside sets up the axle spline, hollow position is located axle spline department, the one end and the hollow portion of clutch shaft are joined in marriage and are adorned, the other end is fixed with the clutch handle through the screw. The torque shaft comprises a hollow part, a solid part and a stress groove, wherein the stress groove has the following functions: if hard rock is encountered in the coal mining process, the cutting head of the coal mining machine is blocked, the torque shaft is broken at the stress groove and does not transmit kinetic energy, namely, the motor is separated from the gear box, so that the motor and the gear box are protected, the twisted-off residual part is convenient to detach and take out, and the maintenance difficulty of the motor is reduced.

Description

Shaft mechanism convenient to disassemble

Technical Field

The utility model relates to a motor for a coal mining machine, in particular to a motor which is a hollow shaft, and the mode of transmitting kinetic energy is a shaft mechanism which is convenient to detach and transmits the kinetic energy by utilizing spline fit of a torque shaft and the hollow shaft of the motor.

Background

The coal mining machine mainly uses underground coal mining, has special geological environment in a mine, and mixes high-hardness rock in a coal bed; therefore, protection measures are required to be taken for the motor and the gear box for the coal mining machine in the process of transmitting kinetic energy. Most of motors for coal mining machines are installed in a coal mining machine shell, and in order to protect the motors and a gear box of the coal mining machine, a mechanism for transmitting kinetic energy of the motors to the gear box without damaging the gear box needs to be developed.

Disclosure of Invention

In view of this, it is necessary to provide a shaft mechanism that is convenient to disassemble.

The utility model provides a convenient axle mechanism who dismantles, including hollow shaft, moment of torsion axle, clutch axle and clutch handle, moment of torsion axle includes stress groove, real core and hollow portion, stress groove respectively with real core and hollow portion fixed connection, the internal thread is seted up to the central point of solid and stress groove link, stress groove, real core and hollow portion are joined in marriage and are adorned in the hollow shaft, the hollow shaft outside sets up the axle spline, the hollow position is located axle spline department, the one end and the hollow portion of clutch axle are joined in marriage the dress, the other end is fixed with the clutch handle through the screw.

Preferably, the stress groove, the solid portion and the hollow portion are integrally formed.

Preferably, one end of the hollow portion is provided with a clamping portion, and one end of the clutch shaft is provided with a clamping block, and the clamping block is assembled with the clamping portion.

The utility model is assembled with a coal mining machine, a rotor and a stator of the coal mining machine are assembled on a hollow shaft, the mode of the motor for transmitting kinetic energy is to enable a torque shaft, the torque shaft comprises a hollow part, a solid part and a stress groove, and the stress groove has the following functions: if hard rock is encountered in the coal mining process, the cutting head of the coal mining machine is blocked, the torque shaft is broken at the stress groove, and kinetic energy is not transmitted any more, namely, the motor is separated from the gear box, so that the motor and the gear box are protected. After the torque shaft is broken, the torque shaft is divided into two parts, the hollow part is connected with the clutch shaft and the clutch handle, and the solid part is left in the motor and the gear box; the hollow part connected with the clutch handle can be conveniently taken out, and the rest solid part is taken out by screwing the iron rod with the screw thread into the internal screw thread at the center of the solid part. Therefore, the gearbox is well protected, the twisted-off residual part is convenient to detach and take out, and the maintenance difficulty of the motor is reduced.

Drawings

FIG. 1 is a schematic diagram of an assembly structure of a shaft mechanism and a coal mining machine motor for easy disassembly;

FIG. 2 is a schematic structural view of a torque shaft;

in the figure: hollow shaft 1, torque shaft 2, stress groove 20, solid portion 21, hollow portion 22, clutch shaft 3, clutch handle 4, internal thread a, shaft spline b, clamping portion c, clamping block d, coal cutter e, rotor f, stator g.

Detailed Description

In order to make the technical scheme of the utility model easier to understand, the technical scheme of the utility model is clearly and completely described by adopting a mode of a specific embodiment with reference to the accompanying drawings.

Referring to fig. 1 and 2, the shaft mechanism convenient to disassemble comprises a hollow shaft 1, a torque shaft 2, a clutch shaft 3 and a clutch handle 4, wherein the torque shaft 2 comprises a stress groove 20, a solid part 21 and a hollow part 22, the stress groove 20 is respectively and fixedly connected with the solid part 21 and the hollow part 22, an internal thread a is formed in the central position of the connecting end of the solid part 21 and the stress groove 20, the solid part 21 and the hollow part 22 are assembled in the hollow shaft 1, a shaft spline b is arranged outside the hollow shaft 1, the hollow part 22 is positioned at the position of the shaft spline b, one end of the clutch shaft 3 is assembled with the hollow part 22, and the other end of the clutch shaft is fixed with the clutch handle 4 through a screw. The stress groove 20, the solid portion 21 and the hollow portion 22 are integrally formed.

One end of the hollow portion 22 is provided with a clamping portion c, and one end of the clutch shaft 3 is provided with a clamping block d, the clamping block d being fitted with the clamping portion c.

The utility model is assembled with a coal cutter e, a rotor f and a stator g of the coal cutter e are assembled on a hollow shaft 1, the motor transmits kinetic energy in a manner that a torque shaft, the torque shaft 2 comprises a hollow part 22, a solid part 21 and a stress groove 20, and the stress groove 20 has the following functions: if hard rock is encountered in the coal mining process, the cutting head of the coal mining machine is blocked, the torque shaft 2 is broken at the stress groove, and kinetic energy is not transmitted any more, namely, the motor is separated from the gear box, so that the motor and the gear box are protected. After the torque shaft 2 is broken, the torque shaft is divided into two parts, the hollow part 22 is connected with the clutch shaft 3 and the clutch handle 4, and the solid part 21 is left in the motor and the gear box; the hollow part 22 connected with the clutch handle 4 can be conveniently taken out, and the rest solid part is taken out by screwing the iron rod with threads into the internal thread a at the center of the solid part 21. Therefore, the gearbox is well protected, the twisted-off residual part is convenient to detach and take out, and the maintenance difficulty of the motor is reduced.

It should be noted that the embodiments described herein are only some embodiments of the present utility model, not all the implementation manners of the present utility model, and the embodiments are only exemplary, and are only used for providing a more visual and clear way of understanding the present disclosure, not limiting the technical solution described in the present utility model. All other embodiments, and other simple alternatives and variations of the inventive solution, which would occur to a person skilled in the art without departing from the inventive concept, are within the scope of the utility model.

Claims

1. The utility model provides a convenient axle mechanism who dismantles which characterized in that: the shaft mechanism convenient to detach comprises a hollow shaft, a torque shaft, a clutch shaft and a clutch handle, wherein the torque shaft comprises a stress groove, a solid part and a hollow part, the stress groove is fixedly connected with the solid part and the hollow part respectively, an internal thread is arranged at the central position of the connecting end of the solid part and the stress groove, the solid part and the hollow part are assembled in the hollow shaft, a shaft spline is arranged outside the hollow shaft, the hollow part is positioned at the shaft spline, one end of the clutch shaft is assembled with the hollow part, and the other end of the clutch shaft is fixed with the clutch handle through a screw.

2. The easy-to-disassemble shaft mechanism of claim 1, wherein: the stress groove, the solid part and the hollow part are integrally formed.

3. The easy-to-disassemble shaft mechanism as in claim 2, wherein: one end of the hollow part is provided with a clamping part, one end of the clutch shaft is provided with a clamping block, and the clamping block is assembled with the clamping part.