A permanent magnet motor holding arm cutting integrated drum

Abstract

The present invention provides a permanent magnet motor arm-holding integrated cutting drum. The cutting drum is of a symmetrical structure, and the left and right drums are symmetrically arranged with respect to the drum seat. Its features include a drum seat, arm-holding tiles, a main shaft, and left and right permanent magnet motors. The two permanent magnet motors share a common main shaft. The drum seat is connected to the main shaft through a seat key, and the main shaft is fixed in the drum seat by the arm-holding tiles. Helical cutting teeth are provided on the outer circumference of the outer shell of the permanent magnet motor, or splines are provided on the outer circumference of the outer shell of the permanent magnet motor, and a cutting sleeve is installed. Helical cutting teeth are provided on the outer circumference of the cutting sleeve. The main shaft and rotor of the permanent magnet motor are fixed to the drum seat, and the stator outer shell serves as the cutting drum and rotates. It has the advantages of simple mechanical structure, easy miniaturization, independent control can be achieved, the requirements for the motor are reduced, there is no speed reducer, it is convenient for installation, use and maintenance, the width of the coal body cut at one time is large, and the coal falling time is long, etc.

Description

Technical Field

[0001] The present invention belongs to the technical field of underground coal roadway driving equipment, and particularly relates to a permanent magnet motor arm-holding integrated cutting drum for a roadheader and a combined bolter and roadheader. Background Art

[0002] In coal mining, driving comes first. Coal roadway driving is a key link for the balance between mining and driving in a mine and achieving high production and efficiency in the mine. Roadheaders and combined bolters and roadheaders are key equipment.

[0003] At present, most of the coal roadway full-face driving equipment adopts a cutting device, and there is still only one cutting part. The cutting head is small in volume and rotates and lifts frequently during coal cutting, resulting in a slow coal cutting speed. The main problem of this driving equipment is that the driving efficiency is too low, which restricts the safe production and high production and efficiency of the mine.

[0004] With the development of roadheaders and combined bolters and roadheaders, there are also cutting devices in the form of cutting drums to achieve large-width driving and form a large-section roadway in one pass. However, the mechanical structure of the cutting drum device is complex, driven by hydraulic pressure or by a motor plus a speed reducer. When encountering complex geological conditions, such as local structures or intercalated gangue, the cutting drum device has a high failure rate and poor adaptability. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems and deficiencies such as the complex structure and high failure rate of the cutting drum devices of existing roadheaders and combined bolters and roadheaders, and to provide a permanent magnet motor arm-holding integrated cutting drum with a simple structure, strong adaptability, low failure rate, suitable for large-width driving, capable of forming a large-section roadway in one pass, and suitable for multi-drum cutting.

[0006] In order to achieve the above purpose, the technical solution of the present invention is as follows:

[0007] A permanent magnet motor arm-holding integrated cutting drum, the cutting drum is of a symmetrical structure, and the left and right two drums are symmetrically arranged with respect to the drum seat; it is characterized in that: it includes a drum seat 1, an arm-holding tile 2, a main shaft 3, and two permanent magnet motors on the left and right; the two permanent magnet motors share one main shaft, the drum seat is connected to the main shaft through a seat key 11, and the main shaft is fixed in the drum seat by the arm-holding tile; a cutting drum is arranged outside the outer shell 8 of the permanent magnet motor, and the main shaft, stator of the permanent magnet motor are fixed to the drum seat, and the rotor outer shell is the cutting drum and rotates.

[0008] The outer circle of the outer shell 8 of the permanent magnet motor is set as the cutting drum, that is, spiral cutting teeth 12 are installed on the outer circle of the outer shell of the permanent magnet motor.

[0009] The outer circle of the housing 8 of the permanent magnet motor is set as a cutting drum, that is, a cutting sleeve is installed outside the housing of the permanent magnet motor, and spiral cutting teeth 12 are installed on the outer circle of the cutting sleeve.

[0010] Spiral cutting teeth 12 are also arranged on the outer circle of the holding arm tile 2.

[0011] The permanent magnet motor includes a main shaft 3, a stator 4, a rotor 5, end covers 6, bearings 7, a housing 8, a through cover 9, a stator key 10 and a cooling system 11; the stator is connected to the main shaft through the stator key, and the rotor is fixedly connected to the housing; the stator and the main shaft are respectively installed in the bearing holes of the end covers and the through cover after being sleeved with bearings; the end covers and the through cover are fixed to both ends of the housing by screws.

[0012] The cooling system 11 circulates the coolant through the main shaft and the stator holes into the cavity between the rotor and the stator to take out the heat generated by the motor.

[0013] Compared with the prior art, the present invention has remarkable beneficial effects:

[0014] The permanent magnet motor holding arm cutting integrated drum of the present invention has a simple structure, strong adaptability, low failure rate, is suitable for large-width tunneling, can form a large-section roadway at one time, and is suitable for the permanent magnet motor holding arm cutting integrated drum used in multi-drum cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a permanent magnet motor holding arm cutting integrated drum of the present invention.

[0016] Figure 2 is a front view of a permanent magnet motor holding arm cutting integrated drum of the present invention.

[0017] Figure 3 is Figure 2 a side view of

[0018] Figure 4 is a schematic diagram of the present invention installed on the cutting arm of a multi-cutting drum roadheader-anchoring machine.

[0019] Figure 5 is Figure 4 a partially enlarged schematic diagram of the installation of

[0020] In the figure: drum seat 1, holding arm tile 2, main shaft 3, stator 4, rotor 5, end cover 6, bearing 7, motor housing 8, through cover 9, stator key 10, seat key 11, cooling system 12, cutting arm 22. DETAILED DESCRIPTION OF THE INVENTION

[0021] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0022] As Figures 1-3 shown, it is a permanent magnet motor arm-holding cutting integrated drum. The cutting drum is a symmetric structure, and the left and right drums are symmetrically arranged with respect to the drum seat 1; it is characterized in that: it includes a drum seat 1, an arm-holding tile 2, a main shaft 3, and two permanent magnet motors on the left and right; the two permanent magnet motors share a main shaft, the drum seat is connected to the main shaft through a seat key 11, and the main shaft is fixed in the drum seat by the arm-holding tile; a spiral cutting tooth 12 is provided on the outer circumference of the outer shell 8 of the permanent magnet motor. The main shaft, stator of the permanent magnet motor are fixed to the drum seat, and the rotor housing is the cutting drum and rotates.

[0023] A spiral cutting tooth 12 is also provided on the outer circumference of the arm-holding tile 2.

[0024] A spline is provided on the outer circumference of the outer shell 8 of the permanent magnet motor, a cutting sleeve is installed, and a spiral cutting tooth 12 is provided on the outer circumference of the cutting sleeve.

[0025] The permanent magnet motor includes a main shaft 3, a stator 4, a rotor 5, end covers 6, bearings 7, an outer shell 8, a through cover 9, a stator key 10, and a cooling system 11; the stator is connected to the main shaft through the stator key 10, and the rotor is fixedly connected to the outer shell; after the stator and the main shaft are sleeved with bearings, they are respectively installed in the bearing holes of the end covers and the through cover; the end covers and the through cover are fixed to both ends of the outer shell by screws.

[0026] The cooling system 11 circulates the coolant through the main shaft and the stator holes into the cavity between the rotor and the stator to take out the heat generated by the motor.

[0027] As Figure 4 shown, the cutting arm of a roadheader-anchoring machine composed of multiple (three pairs) rows of cutting drums, as Figure 5 shown, is a partial enlarged view of a pair of permanent magnet motor arm-holding cutting integrated drums inserted into the drum seat holes of the cutting arm 22 through the drum seat 1.

[0028] A permanent magnet motor arm-holding cutting integrated drum and a roadheader-anchoring machine composed of multiple rows of cutting drums according to the present invention have the advantages of simple mechanical structure, easy miniaturization, independent control can be achieved, the requirements for the motor are reduced, no speed reducer, convenient installation, use and maintenance, wide coal body cutting width at one time, long coal falling time, etc.

Claims

1. A permanent magnet motor arm-holding and cutting integrated drum, the cutting drum is of a symmetrical structure, and the left and right drums are symmetrically arranged with respect to the drum seat; characterized in that: It includes a drum seat (1), a holding arm tile (2), a main shaft (3), and two permanent magnet motors on the left and right; the two permanent magnet motors share one main shaft, the drum seat is connected to the main shaft through a seat key (11), and the main shaft is fixed in the drum seat by the holding arm tile; a cutting drum is provided outside the outer shell (8) of the permanent magnet motor, the main shaft, stator of the permanent magnet motor are fixed to the drum seat, and the rotor shell is the cutting drum and rotates; the permanent magnet motor includes a main shaft (3), a stator (4), a rotor (5), end covers (6), bearings (7), an outer shell (8), a through cover (9), a stator key (10) and a cooling system (11); the stator is connected to the main shaft through the stator key, and the rotor is fixedly connected to the outer shell; after the stator and the main shaft are sleeved with bearings (7), they are respectively installed in the bearing holes of the end covers and the through cover; the end covers and the through cover are fixed to both ends of the outer shell by screws; the cooling system (11) circulates the coolant through the main shaft and the stator holes into the cavities between the rotor and the stator to take out the heat generated by the motor.

2. The integrated drum for permanent magnet motor's arm holding and cutting according to claim 1, characterized in that: The outer circle of the outer shell (8) of the permanent magnet motor is set as a cutting drum, that is, spiral cutting teeth (12) are installed on the outer circle of the outer shell (8) of the permanent magnet motor.

3. The integrated drum for permanent magnet motor's arm clamping and cutting according to claim 1, characterized in that: The outer circle of the outer shell (8) of the permanent magnet motor is set as a cutting drum, that is, a cutting sleeve is installed outside the outer shell (8) of the permanent magnet motor, and spiral cutting teeth (12) are installed on the outer circle of the cutting sleeve.

4. A permanent magnet motor arm-holding cutting integrated drum according to claim 1, characterized in that: Spiral cutting teeth (12) are also provided on the outer circle of the holding arm tile.

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