An automatic control device for progressive destruction of coal seam rock mass

Abstract

The application discloses an automatic control device for gradual destruction of coal seam rock mass, and relates to the technical field of coal seam rock mass destruction, which comprises a driving frame, the bottom of which is fixed with at least three groups of driving caterpillar belts for moving the driving frame; a plurality of hydraulic cylinders are symmetrically arranged in the driving frame, and the plurality of hydraulic cylinders are driven by the same group of control devices to realize synchronous extension and contraction; a lifting plate is horizontally fixed at the output end of the plurality of hydraulic cylinders; a control assembly is slidably arranged on the upper end surface of the lifting plate; and a counterweight device is fixed on the upper end surface of the side of the lifting plate away from the control assembly to balance the driving frame.

Description

Technical Field

[0001] This invention relates to the field of coal seam rock mass destruction technology, specifically an automated quantity control device for the progressive destruction of coal seam rock mass. Background Technology

[0002] Before mining a coal seam, the surface rock mass needs to be damaged to expose the coal seam for easier mining. Currently, rock mass damage is generally achieved through point blasting. During blasting, the surrounding rock mass is impacted, creating fracture zones that are prone to collapse and affect the stability of the rock mass. Furthermore, point blasting is highly dangerous, and when damaging rock mass close to the coal seam, it is not possible to gradually damage the rock mass, which can damage the coal seam while damaging the rock mass, thus reducing coal production.

[0003] To address the above problems, this invention provides an automated quantity control device for the progressive destruction of coal seam rock mass, thereby solving the aforementioned issues. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automated quantity control device for the progressive destruction of coal seam rock mass, comprising:

[0005] A drive frame, with at least three sets of drive tracks fixed to its bottom for movement;

[0006] Multiple hydraulic cylinders are configured and symmetrically arranged inside the drive frame, and the multiple hydraulic cylinders are driven by the same set of control devices to make them extend and retract synchronously.

[0007] The lifting plate is horizontally fixed at the output end of the plurality of hydraulic cylinders;

[0008] A volume control component is slidably disposed on the upper end surface of the lifting plate; and

[0009] A counterweight device is fixed to the upper surface of the lifting plate on the side away from the control component, and is used to maintain the balance of the drive frame.

[0010] Furthermore, preferably, the counterweight device includes at least a main controller and a counterweight block, and the total weight of the main controller and the counterweight block can be balanced with the weight of the control component;

[0011] A rack is fixed to the upper end face of the lifting plate. The rack meshes with the drive end of the control component, and limit blocks are symmetrically fixed at both ends of the rack.

[0012] Further, preferably, the quantity control component includes:

[0013] The control base is slidably disposed on the upper end surface of the lifting plate, and its bottom is driven by a drive gear meshing with the rack.

[0014] The connecting compartment is fixed to the upper surface of the control base, and multiple electrical connecting wires and data transmission lines are installed inside it.

[0015] The fixing frame is fixed at one end to the side of the connecting compartment away from the counterweight device; and

[0016] The crushing assembly, fixed to the other end of the fixing frame, is used for progressive crushing of the rock mass.

[0017] Further, preferably, the crushing component includes:

[0018] The crushing chamber is vertically fixed to the side of the fixing frame away from the connecting chamber;

[0019] The telescopic sensor is symmetrically fixed on the side of the crushing chamber near the direction of movement of the drive frame, and a telescopic spring for resetting is provided inside it.

[0020] The positioning roller is rotatably positioned between the telescopic ends of the telescopic sensor;

[0021] The crushing motor is fixed to the upper end face of the crushing chamber;

[0022] A crushing roller assembly is symmetrically and rotatably arranged inside the crushing chamber, and its upper end face is fixed with meshing rotating gears, one of which is connected to the output shaft of the crushing motor; and

[0023] The discharge guide plate is fixed to the bottom of the crushing chamber, and its outlet direction is away from the drive frame.

[0024] Further, preferably, the crushing roller assembly includes:

[0025] The crushing roller is rotatably and symmetrically arranged inside the crushing chamber, and a mounting shaft hole is provided at its axis center. The mounting shaft hole is polygonal.

[0026] The vibratory hammers are arranged circumferentially on the outer wall of the crushing roller, and adjacent vibratory hammers are staggered.

[0027] Furthermore, preferably, the vibratory hammer assembly includes at least a plurality of crushing heads, and the plurality of crushing heads are all hinged to the crushing roller, and the plurality of crushing heads are arranged at equal intervals along the axial direction of the crushing roller.

[0028] Further, preferably, the crushing head includes:

[0029] The crushed part is hinged to the crushing roller through a hinge hole, and a torsion spring is installed inside the hinge hole so that the crushed part tilts in the direction of rotation of the crushing roller when it is stationary.

[0030] A protective component is fixed to one side of the broken component, and a miniature motor is fixed to one side of the component.

[0031] The crankshaft is fixed at the output end of the micro motor.

[0032] A reciprocating column is slidably disposed inside the crusher, and its end near the crankshaft is connected to the crankshaft by a hinged connecting rod; and

[0033] The vibrating head is slidably disposed on the side of the broken part away from the protective part; and a vibration spring is provided between it and the reciprocating column.

[0034] Furthermore, preferably, the vibrating head is detachably mounted with a crushing head at a position away from the center of the crushed part, for contacting the rock mass.

[0035] Compared with the prior art, the present invention provides an automated control device for the progressive destruction of coal seam rock mass, which has the following beneficial effects:

[0036] In this invention, the control component can drive the internal crushing component to progressively crush the rock mass, avoiding extensive damage to the surrounding rock mass. When the control component moves, it contacts the rock mass through the measuring roller, thereby pushing the telescopic sensor to extend and retract, and sending a signal to the control base, so that the crushing component reaches the same depth during crushing, preventing damage to the coal seam.

[0037] The vibratory hammer assembly, through its internally inclined crushing heads, enables multiple point contacts when the crushing heads come into contact with the rock mass. This multiple point contact increases the crushing force on the rock mass, achieving the effect of breaking the surface through points. During contact, a micro motor drives the reciprocating column to slide rapidly and regularly back and forth. The force of this reciprocating sliding is then transmitted to the vibrating head through a vibrating spring, causing it to vibrate irregularly at a high frequency, thus increasing the crushing force on the rock mass. Furthermore, since only the crushing head contacts the rock mass, only the crushing head needs to be replaced when damaged, saving costs. The crushing components are hinged to the crushing rollers, allowing the crushing components to rotate when in contact with the rock mass. Upon detachment from the rock mass, a torsion spring rebounds, applying a force towards the drive frame to move the crushed rock mass, thus discharging it through the discharge guide plate and improving the convenience of recycling. Attached Figure Description

[0038] Figure 1 This is an overall schematic diagram of an automated quantity control device for the progressive destruction of coal seam rock mass.

[0039] Figure 2 This is a schematic diagram of the overall control components of an automated control device for the progressive destruction of coal seam rock mass.

[0040] Figure 3 A schematic diagram of a crushing component of an automated quantity control device for progressively fracturing coal seam rock mass;

[0041] Figure 4 This is a schematic diagram of the internal structure of a crushing head in an automated quantity control device for progressively fracturing coal seam rock mass.

[0042] In the diagram: 1. Drive frame; 2. Drive track; 3. Hydraulic cylinder; 4. Lifting plate; 5. Measurement control component; 6. Counterweight device; 51. Measurement control base; 52. Connecting chamber; 53. Fixing frame; 54. Crushing chamber; 55. Telescopic sensor; 56. Positioning roller; 57. Crushing motor; 58. Discharge guide plate; 591. Crushing roller; 592. Mounting shaft hole; 593. Vibrating hammer assembly; 5941. Crushing component; 5942. Hinge hole; 5943. Protective component; 5944. Crankwheel; 5945. Hinge connecting rod; 5946. Reciprocating column; 5947. Vibrating spring; 5948. Vibrating head; 5949. Crushing head. Detailed Implementation

[0043] Reference Figures 1-4 This invention provides a technical solution: an automated control device for the progressive destruction of coal seam rock mass, comprising:

[0044] A drive frame 1, with at least three sets of drive tracks 2 fixed to its bottom for movement;

[0045] Multiple hydraulic cylinders 3 are configured and symmetrically arranged inside the drive frame 1, and the multiple hydraulic cylinders 3 are driven by the same set of control devices to make them extend and retract synchronously.

[0046] The lifting plate 4 is horizontally fixed at the output end of the plurality of hydraulic cylinders 3;

[0047] The quantity control component 5 is slidably disposed on the upper end surface of the lifting plate 4; and

[0048] The counterweight device 6 is fixed on the upper surface of the lifting plate 4 away from the control component 5, and is used to maintain the balance of the drive frame 1.

[0049] In this embodiment, the counterweight device 6 includes at least a main controller and a counterweight block, and the total weight of the main controller and the counterweight block can be balanced with the weight of the control component 5.

[0050] A rack is fixed to the upper end face of the lifting plate 4. The rack meshes with the drive end of the control component 5, and limit blocks are symmetrically fixed at both ends of the rack.

[0051] In a preferred embodiment, the measurement control component 5 includes:

[0052] The control base 51 is slidably disposed on the upper end surface of the lifting plate 4, and its bottom is driven by a drive gear meshing with the rack.

[0053] The connecting compartment 52 is fixed to the upper surface of the control base 51, and multiple electrical connecting wires and data transmission lines are installed inside it.

[0054] The fixing frame 53 is fixed at one end to the side of the connecting compartment 52 away from the counterweight device 6; and

[0055] The crushing assembly, fixed to the other end of the fixing frame 53, is used for progressive crushing of the rock mass.

[0056] In a preferred embodiment, the crushing component includes:

[0057] The crushing chamber 54 is vertically fixed to the side of the fixing frame 53 away from the connecting chamber 52;

[0058] The telescopic sensor 55 is symmetrically fixed on the side of the crushing chamber 54 near the moving direction of the drive frame 1, and a telescopic spring for resetting is provided inside it.

[0059] The measuring roller 56 is rotatably disposed between the telescopic ends of the telescopic sensor 55; that is, by contacting the rock mass with the measuring roller 56, the arrangement of the outer wall of the rock mass can be determined, thereby enabling the control base 51 to effectively and safely drive the crushing component, improving the stability of the gradual destruction of the rock mass.

[0060] The crushing motor 57 is fixed to the upper end face of the crushing chamber 54;

[0061] A crushing roller assembly is symmetrically and rotatably arranged inside the crushing chamber 54, and its upper end face is fixed with meshing rotating gears, one of which is connected to the output shaft of the crushing motor 57; and

[0062] The discharge guide plate 58 is fixed to the bottom of the crushing chamber 54, and its outlet direction is away from the drive frame 1.

[0063] It should be noted that before breaking the rock mass, a conveyor belt can be laid between the drive frame 1 and the rock mass. That is, a conveyor belt can be set directly below the discharge guide plate 58 so that the broken rock mass discharged from the discharge guide plate 58 can fall directly onto the conveyor belt for centralized collection, avoiding affecting the movement of the drive frame 1. The conveying direction of the conveyor belt needs to be opposite to the movement direction of the drive frame 1.

[0064] In a preferred embodiment, the crushing roller assembly includes:

[0065] The crushing roller 591 is rotatably and symmetrically arranged inside the crushing chamber 54, and a mounting shaft hole 592 is provided at its axial center. The mounting shaft hole 592 is polygonal.

[0066] Vibratory hammer groups 593 are arranged circumferentially on the outer wall of the crushing roller 591, and adjacent vibratory hammer groups 593 are staggered.

[0067] In other words, the staggered arrangement of the vibratory hammer group 593 can increase the contact position with the rock mass, thereby improving the crushing effect.

[0068] In a preferred embodiment, the vibratory hammer assembly 593 includes at least a plurality of crushing heads, and the plurality of crushing heads are all hinged to the crushing roller 591, and the plurality of crushing heads are arranged at equal intervals along the axial direction of the crushing roller 591.

[0069] In other words, by arranging the crushing head at an angle, multiple point contacts can be achieved when the crushing head comes into contact with the rock mass. This multiple point contacts increase the crushing force on the rock mass, achieving the effect of breaking the surface by point.

[0070] In a preferred embodiment, the crushing head includes:

[0071] The crushed part 5941 is hinged to the crushing roller 591 through a hinge hole 5942, and a torsion spring is installed inside the hinge hole 5942 so that the crushed part 5941 tilts in the direction of rotation of the crushing roller 591 when it is stationary.

[0072] The protective component 5943 is fixed to one side of the broken component 5941, and a micro motor is fixed to one side of it;

[0073] Crankwheel 5944, the shaft center position is fixed at the output end of the micro motor;

[0074] A reciprocating column 5946 is slidably disposed inside the crusher 5941, and its end near the crankshaft 5944 is connected to the crankshaft 5944 by a hinged connecting rod 5945; and

[0075] The vibrating head 5948 is slidably disposed on the side of the crushing part 5941 away from the protective part 5943; and a vibration spring 5947 is disposed between it and the reciprocating column 5946.

[0076] In a preferred embodiment, the vibrating head 5948 is detachably mounted with a crushing head 5949 at a center position away from the crushing component 5941 for contacting the rock mass.

[0077] In other words, when in contact with the rock mass, the reciprocating column 5946 can be driven by a micro motor to slide back and forth quickly and regularly. The force of its reciprocating sliding is then transmitted to the vibrating head 5948 through the vibration spring 5947, causing it to vibrate irregularly at a high frequency, thereby increasing the crushing force on the rock mass. Furthermore, only the crushing head 5949 is in contact with the rock mass, and if it is damaged, only the crushing head 5949 needs to be replaced, saving costs.

[0078] Specifically, during use, the drive frame 1 is moved to the crushing position by the drive track 2. The measuring roller 56 is brought into contact with the rock mass by the control base 51, and the movement continues until the crushing component is in contact with the rock mass, thus determining the initial position of the crushing component. The value of the extension sensor 55 extending outward by about 5cm is set as the critical position value. It should be noted that the extension distance of the extension sensor 55 can be set according to the actual situation to determine the critical position value. Then, the drive frame 1 begins to move along the rock mass. At the beginning of the movement, the crushing component is activated, and then the control base 51 moves 5cm towards the rock mass to crush the rock mass, so that the extension sensor 55 reaches the critical value. After that, the measuring roller 56 moves with the drive frame 1, so that the extension sensor 55 extends and retracts. The crushing component moves accordingly by the control base 51, so that the extension sensor 55 remains at the critical value, ensuring that the crushing depth is the same and preventing damage to the coal seam. The crushed rock mass is conveyed to the discharge guide plate 58 for collection by the crushing component.

[0079] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automated quantity control device for the progressive destruction of coal seam rock mass, characterized in that: include: A drive frame (1) has at least three sets of drive tracks (2) fixed to its bottom for movement; Multiple hydraulic cylinders (3) are configured and symmetrically arranged inside the drive frame (1), and the multiple hydraulic cylinders (3) are driven by the same set of control devices to make them extend and retract synchronously. The lifting plate (4) is horizontally fixed at the output end of the plurality of hydraulic cylinders (3); The quantity control component (5) is slidably disposed on the upper end surface of the lifting plate (4); The counterweight device (6) is fixed on the upper end face of the lifting plate (4) away from the control component (5) to maintain the balance of the drive frame (1); The counterweight device (6) includes at least a main controller and a counterweight block, and the total weight of the main controller and the counterweight block can be balanced with the weight of the control component (5). A rack is fixed to the upper end face of the lifting plate (4), the rack meshes with the drive end of the control component (5), and limit blocks are symmetrically fixed at both ends of the rack; The quantity control component (5) includes: The control base (51) is slidably disposed on the upper end surface of the lifting plate (4), and its bottom is driven by the drive gear meshing with the rack. The connecting compartment (52) is fixed to the upper surface of the control base (51), and multiple electrical connecting wires and data transmission lines are installed inside it; The fixing frame (53) is fixed at one end to the side of the connecting compartment (52) away from the counterweight device (6); The crushing assembly, fixed to the other end of the fixing frame (53), is used for progressive crushing of the rock mass; The crushing component includes: The crushing chamber (54) is vertically fixed to the side of the fixing frame (53) away from the connecting chamber (52); The telescopic sensor (55) is symmetrically fixed on one side of the crushing chamber (54) near the moving direction of the drive frame (1), and a telescopic spring for resetting is provided inside it. The positioning roller (56) is rotatably disposed between the telescopic ends of the telescopic sensor (55); The crushing motor (57) is fixed on the upper end face of the crushing chamber (54); The crushing roller assembly is symmetrically and rotatably arranged inside the crushing chamber (54), and its upper end face is fixed with meshing rotating gears, one of which is connected to the output shaft of the crushing motor (57). The discharge guide plate (58) is fixed at the bottom of the crushing chamber (54) and its outlet direction is away from the drive frame (1).

2. The automated control device for progressively fracturing coal seam rock mass according to claim 1, characterized in that: The crushing roller assembly includes: The crushing roller (591) is rotatably and symmetrically arranged inside the crushing chamber (54), and a mounting shaft hole (592) is provided at its axial center. The mounting shaft hole (592) is polygonal. Vibratory hammer groups (593) are arranged circumferentially on the outer wall of the crushing roller (591), and adjacent vibratory hammer groups (593) are staggered.

3. An automated control device for progressively fracturing coal seam rock mass according to claim 2, characterized in that: The vibratory hammer assembly (593) includes at least a plurality of crushing heads, and the plurality of crushing heads are all hinged to the crushing roller (591), and the plurality of crushing heads are arranged at equal intervals along the axial direction of the crushing roller (591).

4. An automated control device for progressively fracturing coal seam rock mass according to claim 3, characterized in that: The crushing head includes: The crushed part (5941) is hinged to the crushing roller (591) through a hinge hole (5942), and a torsion spring is installed inside the hinge hole (5942) so that the crushed part (5941) tilts in the direction of rotation of the crushing roller (591) when it is stationary. The protective component (5943) is fixed to one side of the broken component (5941), and a micro motor is fixed to one side of it; The crankshaft (5944) is fixed at the output end of the micro motor. A reciprocating column (5946) is slidably disposed inside the crushing component (5941), and one end of the column near the crank (5944) is connected to the crank (5944) by a hinged connecting rod (5945); A vibrating head (5948) is slidably disposed on the side of the crushing part (5941) away from the protective part (5943); and a vibrating spring (5947) is disposed between it and the reciprocating column (5946).

5. An automated control device for progressively fracturing coal seam rock mass according to claim 4, characterized in that: The vibrating head (5948) is detachably mounted with a crushing head (5949) at a center position away from the crushing component (5941) for contacting the rock mass.

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