CN217873738U

CN217873738U - Special torque shaft for coal mining machine

Info

Publication number: CN217873738U
Application number: CN202221279261.8U
Authority: CN
Inventors: 殷予刚
Original assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-11-22
Anticipated expiration: 2032-05-23

Abstract

The utility model discloses a special moment of torsion axle of coal-winning machine, including be used for with external motor shaft linkage complex moment of torsion axle with be used for with external gear shaft linkage complex handle, moment of torsion axle one end is provided with the storage tank that supplies the terminal holding of handle, the storage tank internalization is provided with the cooperation axle, the handle end is seted up and is supplied cooperation axle top male slot, be provided with the steel ball in the slot, cooperation axle top periphery wall sets up with slot internal perisporium clearance fit, cooperation axle top contacts the setting with the steel ball, be provided with the connecting piece that is used for preventing cooperation axle top to break away from the slot in the slot, be provided with on the cooperation axle end and be used for cooperating with the moment of torsion axle and prevent that cooperation axle end from breaking away from the restriction bolt of storage tank, the epaxial cover of cooperation is equipped with the bearing, the bearing periphery wall contacts the setting with the internal perisporium. The utility model provides an among the prior art reduce the problem of the radial additional force that the bearing receives when the handle is by radial positioning.

Description

Special torque shaft for coal mining machine

Technical Field

The utility model relates to a moment of torsion axle technical field of coal-winning machine specifically is a special moment of torsion axle of coal-winning machine.

Background

The torque shaft on the rocker arm of the coal mining machine is generally arranged between the cutting motor and a shaft gear, and plays a clutch role. When the coal mining machine works normally, the torque shaft can transmit power output by the motor; when the coal mining machine is overloaded suddenly, the torque shaft can be broken to play a role in protecting a transmission system; when the coal mining machine is stopped for maintenance, an operator can pull out the torque shaft and disconnect the torque shaft, so that the safety function is achieved. Under the ideal condition of the operation of the coal mining machine, the axes of a motor shaft and a gear shaft on the motor are collinear, and under the condition that the processing precision of the torque shaft has no error, a bearing in the torque shaft does not bear external force or only bears small external force, so that the service life of the bearing is long. However, under actual operating conditions, the working environment of the torque shaft involves many parts, including the rocker arm housing, the motor, the shaft gear, the torque shaft, the end cover, the handle and the like, and the machining precision of each part affects the stress of the bearing. After errors of the parts are accumulated, certain errors are generated in the coaxiality of the motor shaft and the gear shaft, at the moment, the motion track of the torque shaft is not a concentric circle but an ellipse, and because the handle and the end cover are matched, when the handle is radially positioned, the bearing is acted by a radial additional force, the service life of the bearing is seriously influenced, and even the phenomenon that the bearing is damaged and fails to cause the operation fault of the coal mining machine occurs.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a special moment of torsion axle of coal-winning machine reduces the problem of the radial additional force that the bearing receives when the handle is by radial positioning among the solution prior art.

In order to achieve the above object, the utility model provides a special moment of torsion axle of coal-winning machine, including be used for with external motor shaft linkage complex moment of torsion axle with be used for with external gear shaft linkage complex handle, moment of torsion axle one end is provided with the storage tank that supplies the terminal holding of handle, the storage tank internalization is provided with the cooperation axle, the handle end is seted up and is supplied cooperation axle top male slot, be provided with the steel ball in the slot, cooperation axle top periphery wall sets up with slot internal perisporium clearance fit, cooperation axle top contacts the setting with the steel ball, be provided with the connecting piece that is used for preventing cooperation axle top to break away from the slot in the slot, be provided with on the cooperation axle end and be used for cooperating with the moment of torsion axle and prevent the restriction bolt that cooperation axle end breaks away from the storage tank, the epaxial cover of cooperation is equipped with the bearing, the bearing periphery wall contacts the setting with storage tank internal perisporium.

The technical scheme is adopted, and the method is beneficial to that: divide into two parts with the handle among the above-mentioned technique, the handle divide into handle body and cooperation axle, the handle is linked through cooperation axle and moment of torsion axle promptly, make cooperation axle top periphery wall and slot internal perisporium clearance fit set up, when external motor shaft and external gear shaft axial have the error, the cooperation axle can reciprocate also can the free rotation, reduce the radial additional force of exerting on the bearing, the steel ball has still been increased in the slot in the above-mentioned technique simultaneously, the steel ball contacts the setting with cooperation axle top, the combination of steel ball and cooperation axle top is equal to a universal joint promptly, can the automatic adjustment inclination, and then radial additional force has been released, reduce the bearing atress, the life of the inside bearing of moment of torsion axle has been improved greatly, the problem that the bearing received radial additional force and too big lead to the bearing operation inefficacy appears.

The utility model discloses further set up: and the end surface of the starting end of the matching shaft is provided with an arc groove used for contacting with the outer surface of the steel ball.

The technical scheme is adopted, and the method is beneficial to that: the cooperation axle top is provided with the circular arc groove that is used for contacting with the steel ball surface, and the circular arc groove adaptation steel ball more promptly, and the setting up of above-mentioned technique makes cooperation axle angle of adjustment range improve, and then ensures when external motor shaft has the error with external gear shaft axial, and the cooperation axle can angle regulation by oneself, and then reduces the radial additional force of external motor shaft or gear shaft institute exerted on the bearing.

The utility model discloses further set up: the connecting piece is an expansion pin arranged at the opening of the slot, and a through hole for the expansion pin to penetrate is arranged on the starting end of the matching shaft.

The technical scheme is adopted, and the method has the advantages that: the arrangement of the expansion pin ensures that the matching shaft cannot be separated from the slot in the operation process, so that the transmission failure of the torque shaft is avoided.

The utility model discloses further set up: and an arc-shaped chamfer is arranged between the end face of the tail end of the handle and the inner wall of the slot.

The technical scheme is adopted, and the method is beneficial to that: the setting of circular arc chamfer in the above-mentioned technique can improve the cooperation axle inclination angle scope, more makes things convenient for the cooperation axle to adjust, can also avoid the corner fish tail cooperation axle between terminal surface of handle and the slot inner wall simultaneously.

The utility model discloses further set up: the retainer ring is arranged at the opening of the accommodating groove and sleeved on the matching shaft, the inner peripheral wall of the retainer ring is in contact with the outer peripheral wall of the matching shaft, and the outer peripheral wall of the retainer ring is in contact with the inner peripheral wall of the accommodating groove

The technical scheme is adopted, and the method has the advantages that: the setting of retaining ring can effectually prevent that external impurity from invading the storage tank in, avoid appearing external impurity and corrode the problem that the bearing leads to bearing operation inefficacy.

Drawings

FIG. 1 is a simplified block diagram of a prior art motor torque shaft;

FIG. 2 is a cross-sectional view of the internal structure of a prior art torque shaft;

fig. 3 is a sectional view of the structure of the present invention.

Detailed Description

The utility model provides a special moment of torsion axle of coal-winning machine, including be used for with external motor shaft linkage complex moment of torsion axle 1 with be used for with external gear shaft linkage complex handle 2, 1 one end of moment of torsion axle is provided with the storage tank 11 that supplies 2 terminal holding of handle, storage tank 11 internalization is provided with cooperation axle 3, 2 ends of handle have been seted up and have been supplied 3 top male slots 21 of cooperation axle, be provided with steel ball 22 in the

slot

21, 3 top periphery walls of cooperation axle and the setting of 21 internal perisporium clearance fit of slot, 3 top of cooperation axle contact with steel ball 22 and set up, be provided with the connecting piece that is used for preventing 3 tops of cooperation axle from breaking away from slot 21 in the slot 21, be provided with on 3 ends of cooperation axle and be used for with 1 cooperation of moment of torsion axle and prevent that 3 ends of cooperation axle break away from the restriction bolt 31 of storage tank 11, the cover is equipped with bearing 32 on the cooperation axle 3, bearing 32 contacts with 11 internal periphery walls of storage tank and sets up with the internal perisporium, 3 top end face of cooperation axle contacts and sets up the circular-arc groove 33 that is used for steel ball and 22 outer surface contact, the expansion pin 23 sets up on the cooperation axle 11 top periphery wall and the cooperation axle 11 inner peripheral wall, the cooperation axle 12 inner peripheral wall of slot 12 sets up the cooperation axle, and the cooperation axle 11 inner wall, the cooperation axle 11 inner wall contacts set up the retaining ring, and sets up 12 inner wall 12 that the retaining ring that the inner wall that the cooperation axle contacts.

The basic principle and the main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and only the description in the above embodiments and the description is illustrative, and the present invention can be changed and modified in various ways without departing from the spirit and scope of the present invention, which fall into the scope of the present invention, and the scope of the present invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a special torque axis of coal-winning machine which characterized in that: including being used for with external motor shaft linkage complex moment of torsion axle and being used for with external gear shaft linkage complex handle, moment of torsion axle one end is provided with the storage tank that supplies the terminal holding of handle, the storage tank internalization is provided with the cooperation axle, the handle end is seted up and is supplied cooperation axle top male slot, be provided with the steel ball in the slot, cooperation axle top periphery wall sets up with slot internal perisporium clearance fit, cooperation axle top contacts the setting with the steel ball, be provided with the connecting piece that is used for preventing cooperation axle top from breaking away from the slot in the slot, be provided with on the cooperation axle end and be used for with the cooperation of moment of torsion axle and prevent that cooperation axle end from breaking away from the restriction bolt of storage tank, the epaxial cover of cooperation is equipped with the bearing, the bearing periphery wall contacts the setting with storage tank internal perisporium.

2. The torque shaft special for the coal mining machine as claimed in claim 1, wherein: and the end face of the starting end of the matching shaft is provided with an arc groove used for contacting with the outer surface of the steel ball.

3. The torque shaft special for the coal mining machine as claimed in claim 1, wherein: the connecting piece is an expansion pin arranged at the opening of the slot, and a through hole for the expansion pin to penetrate through is arranged at the starting end of the matching shaft.

4. The torque shaft special for the coal mining machine as claimed in claim 1, wherein: and an arc-shaped chamfer is arranged between the end face of the tail end of the handle and the inner wall of the slot.

5. The torque shaft special for the coal mining machine as claimed in claim 1, wherein: the anti-theft device is characterized in that a retainer ring is arranged at the opening of the accommodating groove and sleeved on the matching shaft, the inner peripheral wall of the retainer ring is in contact with the outer peripheral wall of the matching shaft, and the outer peripheral wall of the retainer ring is in contact with the inner peripheral wall of the accommodating groove.