An intelligent coal mining machine

Abstract

The present invention is applicable to the technical field of coal mining machines, and provides an intelligent coal mining machine, including a driving arm, and also including: a coal mining drum, in which a driving shaft is installed, and a plurality of mounting holes are arranged in a circle on the side wall of the coal mining drum; a crushing module, the crushing module includes two groups of crushing units, the crushing units include a mounting seat, each of the mounting holes is provided with a mounting seat, and a plurality of cutting tools are equidistantly installed at one end of the mounting seat away from the driving shaft, and two groups of adjustment units are also provided inside the coal mining drum; a filter unit, the filter unit is installed on the side wall of the coal mining drum. The device can reduce the temperature of the crushing module after long-term operation by adopting the method of alternating operation of two groups of crushing units, and can make the dust generated during the coal mining process adhere to the coal mining drum, which can prevent dust from overflowing and effectively improve the air quality in the working area.

Description

Technical Field

[0001] The present invention belongs to the technical field of coal shearers, and particularly relates to an intelligent coal mine shearer. Background Art

[0002] A coal shearer is a mechanical device used for coal mine exploitation, which can automatically cut and excavate coal seams. The coal shearer plays a crucial role in modern coal mine production, greatly improving the coal mining efficiency and safety.

[0003] A coal shearer generally consists of multiple parts such as a cutting mechanism, a traveling mechanism, and a loading and transporting mechanism that cooperate with each other. Among them, the cutting mechanism generally consists of a cutting head and a cutting arm. There are multiple cemented carbide cutters on the cutting head, which can rotate rapidly to cut the coal seam. Since the cutting head will continuously contact the coal mine and rotate at a high speed throughout the coal mining process, it will inevitably cause the cutting head to generate a relatively high temperature. In addition, due to the lack of an effective dust collection device, a large amount of dust will be generated during coal mining, resulting in a poor working environment and being unfavorable for the normal work of operators. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide an intelligent coal mine shearer, aiming to solve the problems raised in the above background art.

[0005] The embodiments of the present invention are implemented as follows. An intelligent coal mine shearer includes a shearer body, and a driving arm is arranged on the shearer body. It further includes:

[0006] A coal mining drum, a driving shaft is installed in the coal mining drum, and the driving shaft is in transmission connection with the driving arm. A plurality of mounting holes are arranged in a circular array on the side wall of the coal mining drum. A plurality of exhaust holes are opened on one side of the coal mining drum close to the driving arm, and an exhaust assembly for forming a negative pressure at the exhaust holes is further arranged on the driving arm;

[0007] A crushing module, the crushing module includes two groups of crushing units. Each crushing unit includes a plurality of mounting seats arranged in a circular array around the driving shaft, and the mounting seats in the two groups of crushing units are arranged staggeredly. A mounting seat is correspondingly arranged in each mounting hole, and the mounting seat is slidably installed in the mounting hole along the radial direction of the driving shaft. A plurality of cutting tools are equidistantly installed at one end of the mounting seat away from the driving shaft. Two groups of adjusting units are further arranged inside the coal mining drum. The two groups of adjusting units are respectively arranged at both ends of the coal mining drum and are respectively connected to a group of crushing units. The adjusting unit is used to drive each mounting seat in a group of crushing units to synchronously perform linear movement along the radial direction of the driving shaft;

[0008] The filtering unit is installed on the side wall of the coal mining drum. After the mounting seats in the mounting holes retract into the interior of the coal mining drum, the filtering unit will cover the mounting holes.

[0009] In a further technical solution, the exhaust assembly includes a plurality of exhaust ducts opened on the driving arm, and the exhaust ducts are opened in the area of the driving arm corresponding to the exhaust holes. Exhaust fans are installed in each of the exhaust ducts.

[0010] In a further technical solution, a dust collecting pipe is provided between the end of the coal mining drum and the driving arm. One end of the dust collecting pipe close to the coal mining drum covers each exhaust hole inside it, and the other end of the dust collecting pipe covers each exhaust fan inside. The dust collecting pipe is connected to the end of the coal mining drum through a bearing structure.

[0011] In a further technical solution, the adjusting unit includes a sliding ring sleeved on the driving shaft, and a control unit for driving the sliding ring to linearly move along the axial direction of the driving shaft is also provided in the coal mining drum. A number of connecting rods are arranged in a ring on the sliding ring, and the number of the connecting rods is the same as the number of the mounting seats in a set of crushing units. An articulated rod is hinged on each sliding ring, and the end of the articulated rod away from the connecting rod is hinged to the inner side of the corresponding mounting seat.

[0012] In a further technical solution, the control unit includes an electromagnet installed at the end of the coal mining drum, and one side of the sliding ring close to the electromagnet is connected to the electromagnet through a support spring.

[0013] In a further technical solution, the filtering unit includes a partition net plate. The partition net plate is slidably installed on the coal mining drum along the circumferential direction of the coal mining drum, and a partition net plate is correspondingly provided at each mounting hole. The partition net plate is connected to the coal mining drum through a number of return springs, and an inclined surface is provided on the inner side of the end of the partition net plate away from the return spring.

[0014] In a further technical solution, the driving arm is detachably installed on the coal mining machine body.

[0015] An intelligent coal shearer provided by an embodiment of the present invention, during operation, drives a drive shaft to rotate through a drive arm, thereby driving the entire coal cutting drum to rotate. The coal cutting drum can drive the crushing unit thereon to rotate synchronously, and thus carry out coal mining work through the cutting tools on the mounting base. And during the specific working process, only when the cutting tools on the crushing unit extend outside the coal cutting drum will they contact the coal mine. By controlling the two groups of crushing units to extend alternately, one group of crushing units is always kept in a working state, and the other group of crushing units can be cooled inside the coal cutting drum. Specifically, when the corresponding electromagnet is powered on or off, when the electromagnet is powered off, the elastic force of the support spring will push the sliding ring to move along the axial direction of the drive shaft. The sliding ring can drive the connecting rods thereon to move synchronously. The connecting rods can drive the corresponding mounting base to move along the radial direction of the drive shaft through the hinge rods arranged thereon, so that the outer sides of the mounting bases in the same group of crushing units extend outside the coal cutting drum at the same time. When the electromagnet is powered on, the magnetic suction force generated by the electromagnet will cause the sliding ring to move towards the side close to the electromagnet, so that the corresponding mounting base is pulled back into the coal cutting drum through the adjusting unit. In addition, during the operation of the coal cutting drum, the exhaust fan exhausts air towards the side away from the coal cutting drum, thereby forming a negative pressure at the exhaust hole, so that the air inside the coal cutting drum can be discharged, and the air outside the coal cutting drum can enter the coal cutting drum from the corresponding mounting holes. On the one hand, dust and the like generated during coal mining can be adsorbed on the coal cutting drum, reducing dust emission; on the other hand, by accelerating the air circulation inside the coal cutting drum, the crushing unit located inside the coal cutting drum can be cooled, accelerating the temperature reduction of the crushing unit. And when the mounting base in the mounting hole retracts into the coal cutting drum, the elastic force of the return spring will cause the corresponding isolation net plate to cover the entire mounting hole, preventing dust generated during coal mining from entering the coal cutting drum through the mounting hole. By adopting the method of alternately working of the two groups of crushing units, the device can reduce the temperature of the crushing module after long-term work, and can make the dust generated during coal mining adhere to the coal cutting drum, preventing dust from overflowing and effectively improving the air quality of the working area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an intelligent coal shearer provided by an embodiment of the present invention;

[0017] Figure 2 It is a schematic structural diagram when both groups of crushing units in an intelligent coal shearer provided by an embodiment of the present invention are in a working state;

[0018] Figure 3 It is a schematic structural diagram when one group of crushing units in an intelligent coal shearer provided by an embodiment of the present invention is in a working state;

[0019] Figure 4 Schematic diagram of the installation positions of two groups of crushing units in an intelligent coal mining shearer provided by an embodiment of the present invention;

[0020] Figure 5 Schematic diagram of the structure of the crushing unit cooperating with the adjusting unit 4 in an intelligent coal mining shearer provided by an embodiment of the present invention;

[0021] Figure 6 Schematic diagram of the installation position of a slip ring in an intelligent coal mining shearer provided by an embodiment of the present invention;

[0022] Figure 7 Partial structure schematic diagram of a driving arm in an intelligent coal mining shearer provided by an embodiment of the present invention;

[0023] Figure 8 Schematic diagram of the structure of a coal cutting drum in an intelligent coal mining shearer provided by an embodiment of the present invention;

[0024] Figure 9 Partial structure schematic diagram of a coal cutting drum in an intelligent coal mining shearer provided by an embodiment of the present invention;

[0025] Figure 10 is Figure 9 enlarged view of part A in

[0026] Figure 11 Schematic diagram of the structure in which the mounting seats of two groups of crushing units in an intelligent coal mining shearer provided by an embodiment of the present invention are staggered;

[0027] Figure 12 Schematic diagram of the structure after two groups of crushing units in an intelligent coal mining shearer provided by an embodiment of the present invention are split along the axial direction of the drive shaft.

[0028] In the drawings: driving arm 1; exhaust air duct 11; exhaust fan 12; coal cutting drum 2; mounting hole 21; exhaust hole 22; drive shaft 23; crushing unit 3; mounting seat 31; cutting tool 32; adjusting unit 4; slip ring 41; connecting rod 42; articulated rod 43; control unit 5; electromagnet 51; support spring 52; filtering unit 6; isolation net plate 61; inclined surface 611; return spring 62. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0031] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 11 and Figure 12 shown, an intelligent coal mining shearer provided by an embodiment of the present invention includes a shearer body, a driving arm 1 is arranged on the shearer body, and further includes:

[0032] A coal cutting drum 2, a driving shaft 23 is installed in the coal cutting drum 2, and the driving shaft 23 is in transmission connection with the driving arm 1. A plurality of mounting holes 21 are arranged in a ring on the side wall of the coal cutting drum 2. A plurality of exhaust holes 22 are opened on one side of the coal cutting drum 2 close to the driving arm 1, and an exhaust assembly for forming a negative pressure at the exhaust holes 22 is further arranged on the driving arm 1;

[0033] A crushing module, the crushing module includes two sets of crushing units 3, the crushing unit 3 includes a plurality of mounting seats 31 arranged in a ring around the driving shaft 23, and the mounting seats 31 in the two sets of crushing units 3 are arranged in an alternating manner. A mounting seat 31 is correspondingly arranged in each mounting hole 21, and the mounting seat 31 is slidably mounted in the mounting hole 21 along the radial direction of the driving shaft 23. A plurality of cutting tools 32 are equidistantly installed at one end of the mounting seat 31 away from the driving shaft 23. Two sets of adjusting units 4 are further arranged inside the coal cutting drum 2. The two sets of adjusting units 4 are respectively arranged at both ends of the coal cutting drum 2 and are respectively connected to a set of crushing units 3. The adjusting unit 4 is used to drive each mounting seat 31 in a set of crushing units 3 to linearly move synchronously along the radial direction of the driving shaft 23;

[0034] A filtering unit 6, the filtering unit 6 is installed on the side wall of the coal cutting drum 2, and when the mounting seats 31 in each mounting hole 21 retract into the coal cutting drum 2, the filtering unit 6 will cover the mounting hole 21.

[0035] In the embodiment of the present invention, during operation, the driving arm 1 drives the driving shaft 23 to rotate, thereby driving the entire coal mining drum 2 to rotate. The coal mining drum 2 can drive the crushing unit 3 thereon to rotate synchronously, so as to carry out coal mining work through the cutting tool 32 on the mounting seat 31. And in the specific working process, only when the cutting tool 32 on the crushing unit 3 extends to the outside of the coal mining drum 2 will it contact the coal mine. The adjusting unit 4 can drive each mounting seat 31 in the same group of crushing units 3 to slide synchronously along the mounting hole 21, so that the mounting seat 31 can be retracted into the coal mining drum 2 or extended to the outside of the coal mining drum 2. By controlling the two groups of crushing units 3 to extend alternately, one group of crushing units 3 is always kept in the working state, and the other group of crushing units 3 can be cooled inside the coal mining drum 2. Specifically, during the working process of the coal mining drum 2, a negative pressure can be formed at the exhaust hole 22 through the exhaust assembly, and the external air can be sucked into the coal mining drum 2 through the mounting hole 21 corresponding to the non-working crushing unit 3, and the air in the coal mining drum 2 can be discharged through the exhaust hole 22. On the one hand, the dust generated during coal mining can be adsorbed on the coal mining drum 2, reducing dust; on the other hand, by accelerating the air circulation inside the coal mining drum 2, the crushing unit 3 located inside the coal mining drum 2 can be dissipated heat, accelerating the temperature reduction of the crushing unit 3.

[0036] As Figure 1 and Figure 7 shown, as a preferred embodiment of the present invention, the exhaust assembly includes a plurality of exhaust duct channels 11 opened on the driving arm 1, and the exhaust duct channels 11 are opened in the area of the driving arm 1 corresponding to the exhaust hole 22, and exhaust fans 12 are installed in each of the exhaust duct channels 11.

[0037] In the embodiment of the present invention, during use, the exhaust fan 12 discharges air to the side away from the coal mining drum 2, thereby forming a negative pressure at the exhaust hole 22, so as to discharge the air inside the coal mining drum 2 and make the air outside the coal mining drum 2 enter the inside of the coal mining drum 2 from each mounting hole 21. On the one hand, the dust generated during coal mining can be adsorbed on the coal mining drum 2, reducing dust; on the other hand, by accelerating the air circulation inside the coal mining drum 2, the crushing unit 3 located inside the coal mining drum 2 can be dissipated heat, accelerating the temperature reduction of the crushing unit 3.

[0038] As a preferred embodiment of the present invention, a dust collecting pipe can be provided between the end of the coal mining drum 2 and the driving arm 1. One end of the dust collecting pipe close to the coal mining drum 2 covers each exhaust hole 22 inside it, and the other end of the dust collecting pipe covers each exhaust fan 12 inside it, and the dust collecting pipe can be connected to the end of the coal mining drum 2 through a bearing structure, while ensuring the connection tightness between the two, and making the dust collecting pipe not rotate synchronously with the coal mining drum 2.

[0039] In an embodiment of the present invention, by providing a dust collecting pipe, the negative pressure formed by the exhaust assembly at the exhaust hole 22 is further enhanced, thereby improving the working effect of the exhaust assembly.

[0040] Such as Figure 4 , Figure 5 , Figure 6 and Figure 12 As shown, as a preferred embodiment of the present invention, the adjusting unit 4 includes a sliding ring 41 sleeved on the driving shaft 23, and a control unit 5 for driving the sliding ring 41 to linearly move along the axial direction of the driving shaft 23 is further provided in the coal mining drum 2. A plurality of connecting rods 42 are arranged in a ring on the sliding ring 41, and the number of the connecting rods 42 is the same as the number of the mounting seats 31 in a set of crushing units 3. Each sliding ring 41 is hinged with a hinged rod 43, and one end of the hinged rod 43 away from the connecting rod 42 is hinged to the inner side of the corresponding mounting seat 31 (defining the side of the mounting seat 31 close to the driving shaft 23 as the inner side).

[0041] In an embodiment of the present invention, two sets of the control unit 5 are also provided, respectively corresponding to controlling the sliding rings 41 in the two sets of adjusting units 4 to move. During use, only by controlling the corresponding sliding ring 41 to move along the axial direction of the driving shaft 23 through the control unit 5, the sliding ring 41 can drive the respective connecting rods 42 thereon to move synchronously. During the movement of the connecting rod 42, the hinged rod 43 will be driven to move synchronously. Since the hinged rod 43 is connected to the mounting seat 31, and since the mounting seat 31 is slidably mounted in the mounting hole 21 along the radial direction of the driving shaft 23, the mounting seat 31 can only move along the radial direction of the driving shaft 23. Therefore, the movement of the connecting rod 42 along the axial direction of the driving shaft 23 will be converted into the movement of the mounting seat 31 along the radial direction of the driving shaft 23 through the hinged rod 43. Thus, the outer sides of the respective mounting seats 31 in the same set of crushing units 3 simultaneously extend out of the coal mining drum 2, or the respective mounting seats 31 in the same set of crushing units 3 are simultaneously retracted into the coal mining drum 2. Thus, the working states of the two sets of crushing units 3 are adjusted, and it can be selected to let the two sets of crushing units 3 alternately perform coal mining work.

[0042] Such as Figure 4 and Figure 5 As shown, as a preferred embodiment of the present invention, the control unit 5 includes an electromagnet 51 installed at the end of the coal mining drum 2, and one side of the sliding ring 41 close to the electromagnet 51 is connected to the electromagnet 51 through a support spring 52.

[0043] In the embodiment of the present invention, when the electromagnet 51 is powered off, the elastic force of the support spring 52 will push the sliding ring 41 to move along the axial direction of the drive shaft 23, so that the corresponding mounting seat 31 extends out of the coal mining drum 2. When the electromagnet 51 is powered on, the magnetic suction force generated by the electromagnet 51 will cause the sliding ring 41 to move towards the side close to the electromagnet 51, so that the corresponding mounting seat 31 is pulled back into the coal mining drum 2. During use, only by controlling the corresponding electromagnet 51 to be powered on or off, different groups of crushing units 3 can be switched to work.

[0044] As a preferred embodiment of the present invention, the control unit 5 can also adopt a hydraulic push rod. By controlling the contraction of the hydraulic push rod, the corresponding sliding ring 41 can be driven to move along the axial direction of the drive shaft 23. This setting is to avoid the situation that the support spring 52 may have insufficient support force in some mining environments.

[0045] As shown in Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 10 As a preferred embodiment of the present invention, the filtering unit 6 includes a partition net plate 61. The partition net plate 61 is slidably mounted on the coal mining drum 2 along the circumferential direction of the coal mining drum 2, and a partition net plate 61 is correspondingly arranged at each mounting hole 21. The partition net plate 61 is connected to the coal mining drum 2 through a plurality of return springs 62, and an inclined surface 611 is arranged on the inner side of the end of the partition net plate 61 away from the return spring 62.

[0046] In the embodiment of the present invention, when the partition net plate 61 is not affected by an external force, the elastic force of the return spring 62 will cause the partition net plate 61 to cover the corresponding mounting hole 21 as a whole. Through the blocking effect of the partition net plate 61, the dust generated during coal mining can be prevented from entering the coal mining drum 2. During use, when the mounting seat 31 in the mounting hole 21 retracts into the coal mining drum 2, the elastic force of the return spring 62 will cause the corresponding partition net plate 61 to cover the mounting hole 21 as a whole, preventing the dust generated during coal mining from entering the coal mining drum 2 through the mounting hole 21. During the process of the mounting seat 31 inside the coal mining drum 2 extending out of the coal mining drum 2, the cutting tool 32 on the mounting seat 31 will abut against the inclined surface 611 and push the partition net plate 61 to one side through the cooperation with the inclined surface 611, so that the mounting seat 31 can smoothly extend out of the mounting hole 21.

[0047] As a preferred embodiment of the present invention, the driving arm 1 is detachably mounted on the coal mining machine body, so as to improve the adaptability of the driving arms 1 and 2. The operator can quickly transform on the basis of the existing coal mining machine, thereby reducing the production and operation costs.

[0048] Working principle: During operation, the driving arm 1 drives the driving shaft 23 to rotate, thereby driving the entire coal mining drum 2 to rotate. The coal mining drum 2 can drive the crushing unit 3 thereon to rotate synchronously, so as to carry out coal mining work through the cutting tool 32 on the mounting seat 31. And during the specific working process, only when the cutting tool 32 on the crushing unit 3 extends out of the coal mining drum 2 will it contact the coal mine. By controlling the two groups of crushing units 3 to extend alternately, one group of crushing units 3 is always kept in the working state, and the other group of crushing units 3 can be cooled inside the coal mining drum 2. Specifically, the corresponding electromagnet 51 is controlled to be energized or de-energized. When the electromagnet 51 is de-energized, the elastic force of the support spring 52 will push the sliding ring 41 to move along the axial direction of the driving shaft 23. The sliding ring 41 can drive each connecting rod 42 thereon to move synchronously. The connecting rod 42 can drive the corresponding mounting seat 31 to move along the radial direction of the driving shaft 23 through the hinge rod 43 provided thereon, so that the outer sides of the mounting seats 31 in the same group of crushing units 3 extend out of the coal mining drum 2 at the same time. When the electromagnet 51 is energized, the magnetic attraction generated by the electromagnet 51 will cause the sliding ring 41 to move towards the side close to the electromagnet 51, so that the corresponding mounting seat 31 is pulled back into the coal mining drum 2 through the adjusting unit 4. In addition, during the operation of the coal mining drum 2, the exhaust fan 12 discharges air towards the side away from the coal mining drum 2, so as to form a negative pressure at the exhaust hole 22, thereby discharging the air inside the coal mining drum 2 and enabling the air outside the coal mining drum 2 to enter the coal mining drum 2 from the corresponding mounting hole 21. On the one hand, it can make the dust generated during coal mining be adsorbed on the coal mining drum 2, reducing dust; on the other hand, by accelerating the air circulation inside the coal mining drum 2, the crushing unit 3 located inside the coal mining drum 2 can be cooled, accelerating the temperature reduction of the crushing unit 3. And when the mounting seat 31 in the mounting hole 21 retracts into the coal mining drum 2, the elastic force of the reset spring 62 will cause the corresponding isolation net plate 61 to cover the entire mounting hole 21, preventing the dust generated during coal mining from entering the coal mining drum 2 through this mounting hole 21. During the process of the mounting seat 31 inside the coal mining drum 2 extending out of the coal mining drum 2, the cutting tool 32 on this mounting seat 31 will abut against the inclined surface 611 and push the isolation net plate 61 to one side through the cooperation with the inclined surface 611, so that the mounting seat 31 can smoothly extend out of this mounting hole 21.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent coal mining machine, comprising a coal mining machine body, wherein a driving arm is arranged on the coal mining machine body, characterized in that: Also includes: A coal mining drum, wherein a driving shaft is installed in the coal mining drum, and the driving shaft is in transmission connection with a driving arm, a plurality of mounting holes are arranged in a circle on the side wall of the coal mining drum, a plurality of exhaust holes are opened on a side of the coal mining drum close to the driving arm, and an exhaust assembly for forming a negative pressure at the exhaust hole is also provided on the driving arm; A crushing module, wherein the crushing module comprises two groups of crushing units, wherein the crushing units comprise a plurality of mounting seats arranged in a ring array around the driving shaft, and the mounting seats in the two groups of crushing units are arranged in an interlaced manner, and a mounting seat is correspondingly arranged in each mounting hole, and the mounting seat is slidably installed in the mounting hole along the radial direction of the driving shaft, and a plurality of cutting tools are equidistantly installed at one end of the mounting seat away from the driving shaft, and two groups of adjusting units are further arranged inside the coal mining drum, and the two groups of adjusting units are respectively arranged at the two ends of the coal mining drum and are respectively connected to a group of crushing units, and the adjusting unit is used to drive each mounting seat in a group of crushing units to synchronously move linearly along the radial direction of the driving shaft; The filter unit is installed on the side wall of the coal mining drum, and when the mounting seat in each mounting hole is retracted into the interior of the coal mining drum, the filter unit will cover the mounting hole.

2. The intelligent coal mining machine according to claim 1 is characterized in that: The exhaust assembly includes a plurality of exhaust ducts opened on the driving arm, and the exhaust ducts are opened at areas on the driving arm corresponding to the exhaust holes, and an exhaust fan is installed in each of the exhaust ducts.

3. The intelligent coal mining machine according to claim 2 is characterized in that: A dust collecting pipe is arranged between the end of the coal mining drum and the driving arm. One end of the dust collecting pipe close to the coal mining drum covers each exhaust hole inside, and the other end of the dust collecting pipe covers each exhaust fan inside. The dust collecting pipe is connected to the end of the coal mining drum through a bearing structure.

4. The intelligent coal mining machine according to claim 1, characterized in that: The adjusting unit comprises a sliding ring sleeved on the driving shaft, and the coal mining drum is also provided with a control unit for driving the sliding ring to move linearly along the axial direction of the driving shaft, a plurality of connecting rods are arranged in a ring on the sliding ring, and the number of the connecting rods is the same as the number of mounting seats in a group of crushing units, and each of the sliding rings is hinged with a hinged rod, and one end of the hinged rod away from the connecting rod is hinged to the inner side of the corresponding mounting seat.

5. The intelligent coal mining machine according to claim 4 is characterized in that: The control unit comprises an electromagnet installed at the end of the coal mining drum, and a side of the sliding ring close to the electromagnet is connected to the electromagnet through a supporting spring.

6. The intelligent coal mining machine according to claim 1, characterized in that: The filter unit includes an isolation mesh plate, which is slidably installed on the coal mining drum along the circumference of the coal mining drum, and an isolation mesh plate is correspondingly arranged at each of the installation holes. The isolation mesh plate is connected to the coal mining drum through a plurality of return springs, and an inclined surface is arranged on the inner side of one end of the isolation mesh plate away from the return spring.

7. The intelligent coal mining machine according to claim 1, characterized in that: The driving arm is detachably mounted on the coal mining machine body.

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