CN216197847U - Automatic drilling machine for fully mechanized coal mining face - Google Patents

Abstract

The utility model relates to an automatic drilling machine for a fully mechanized coal mining face, which comprises a fixed seat assembly, wherein the fixed seat assembly is used for realizing the fixed installation of a drilling mechanism on a coal baffle plate and the movement along the coal baffle plate; the lifting frame assembly is arranged on the fixed seat assembly and connected with the drilling mechanism so as to adjust the horizontal height of the drilling mechanism; the pre-tightening inclined strut assembly is connected between the drilling mechanism and the fixed seat assembly, provides support for the drilling mechanism and eliminates a gap between the drilling mechanism and the fixed seat assembly through a self pre-tightening function; the drilling mechanism comprises a guide rail assembly and a power rotating assembly; the guide rail assembly is connected with the lifting frame assembly and the pre-tightening inclined strut assembly, and an angle adjusting mechanism is arranged in the guide rail assembly to adjust the drilling angle of the drilling tool; the power rotation assembly is arranged on the guide rail of the guide rail assembly in a sliding mode and provides rotation power for the drilling tool. The utility model effectively improves the on-site construction efficiency and reduces the labor intensity of workers.

Description

Automatic drilling machine for fully mechanized coal mining face

Technical Field

The utility model belongs to the technical field of drilling, and particularly relates to an automatic drilling machine for a fully mechanized coal mining face.

Background

The fully mechanized mining face shallow hole drilling construction is a main construction measure for local gas control and fault crossing of a coal seam, and is also one of necessary work of a high gas mine and a outburst mine. The existing fully-mechanized mining face drilling construction usually adopts a manual holding drill or a hydraulic drilling machine, the manual holding drill needs to manually hold a drilling machine for construction, the construction efficiency is low, and the labor intensity of workers is high; the hydraulic drilling machine can be fixed on a coal baffle plate on a construction site, but the conventional technology has the problems of unreliable stable drilling, difficult angle adjustment, unadjustable drilling height, inconvenient movement, large workload during disassembly and assembly and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic drilling machine for a fully mechanized mining face, which realizes the functions of angle adjustment, height adjustment, quick assembly and disassembly of equipment and the like through the cooperation of multiple components, effectively improves the construction efficiency on site and reduces the labor intensity of workers.

In order to achieve the purpose, the utility model adopts the technical scheme that: an automatic drilling machine for a fully mechanized coal mining face comprises a fixed base assembly, wherein the fixed base assembly is used for realizing the fixed installation of a drilling mechanism on a coal baffle plate and the movement of the drilling mechanism along the coal baffle plate;

the lifting frame assembly is arranged on the fixed seat assembly and connected with the drilling mechanism so as to adjust the horizontal height of the drilling mechanism;

the pre-tightening inclined strut assembly is connected between the drilling mechanism and the fixed seat assembly, provides support for the drilling mechanism and eliminates a gap between the drilling mechanism and the fixed seat assembly through a self pre-tightening function;

the drilling mechanism comprises a guide rail assembly and a power rotating assembly; the guide rail assembly is connected with the lifting frame assembly and the pre-tightening inclined strut assembly, and an angle adjusting mechanism is arranged in the guide rail assembly to adjust the drilling angle of the drilling tool; the power rotation assembly is arranged on the guide rail of the guide rail assembly in a sliding mode and provides rotation power for the drilling tool.

Optionally, the fixing seat assembly comprises a fixing frame, a supporting pin and a tensioning block, the fixing frame is provided with a sleeve connected with the lifting frame assembly and a clamping groove used for being clamped at the upper edge of the coal baffle, and at least one side of the inner wall of the clamping groove is provided with an inner conical surface; the tensioning block is used for being clamped between the coal baffle and the inner wall of the clamping groove provided with the inner conical surface, and the tensioning block is provided with an outer conical surface matched with the inner conical surface; the support pin is arranged on the fixed frame and is contacted with the upper edge of the coal baffle plate.

As another option, the fixed seat assembly comprises a fixed frame, a supporting pin and a square head screw, and the fixed frame is provided with a sleeve connected with the lifting frame assembly and a clamping groove used for being clamped at the upper edge of the coal baffle plate; the supporting pin is rotatably arranged on the fixed frame and is contacted with the upper edge of the coal baffle plate; the square head screw penetrates through the fixing frame and the coal blocking plate to be connected with the locking nut, the square head of the square head screw is matched with the square hole on one side of the fixing frame, a pressing step is further arranged on the square head screw and used for being pressed against the coal blocking plate so as to compress a gap between the coal blocking plate and the fixing frame.

Furthermore, the end face of the square head screw for pressing the step is of an outer conical structure, and an inner conical structure matched with the outer conical structure is arranged at one end of the through hole for mounting the square head screw on the coal baffle plate.

As an option, the lifting frame assembly comprises a lifting frame, a positioning pin, a limiting pin and a connecting lug plate, the lifting frame is vertically installed in a sleeve of the fixing frame assembly, the positioning pin is used for penetrating through holes arranged on the lifting frame and the sleeve to limit the height of the lifting frame, the connecting lug plate is fixed at the top end of the lifting frame to rotatably install the angle adjusting mechanism of the guide rail assembly, and the limiting pin is arranged on the connecting lug plate in a plugging and pulling mode and meshed with the angle adjusting mechanism to lock the rotating angle of the angle adjusting mechanism.

As another option, the lifting frame assembly comprises a lifting frame, a positioning pin, a limiting pin and a connecting lug plate, the lifting frame is vertically installed in a sleeve of the fixing frame assembly, the positioning pin is used for penetrating through holes formed in the lifting frame and the sleeve to limit the height of the lifting frame, the connecting lug plate is fixed at the top end of the lifting frame to rotatably install the angle adjusting mechanism of the guide rail assembly, external teeth are arranged on the angle adjusting mechanism, two ends of the limiting pin are slidably supported on two side plates of the connecting lug plate, a sliding block meshed with the external teeth of the angle adjusting mechanism is arranged in the middle of the limiting pin, a spring is further arranged on the limiting pin, the sliding block is kept meshed with the angle adjusting mechanism by means of the elasticity of the spring, and the meshing between the sliding block and the angle adjusting mechanism is relieved by pulling the limiting pin.

Furthermore, the moving direction of the limiting pin is parallel or vertical to the rotating axis of the angle adjusting mechanism.

As an option, the guide rail assembly further comprises a guide rail with a box structure and a chain arranged in the guide rail, and the angle adjusting mechanism is an angle disc or a gear block with an external tooth structure; a sight assembly for supporting a drill rod is fixedly arranged at the front end of the guide rail, the upper surface of the guide rail is connected with the power rotation assembly in a sliding manner, and the chain is connected with a driving wheel in the power rotation assembly in a matching manner; the angle adjusting mechanism is fixedly arranged on the lower surface of the guide rail and is rotatably connected with the top end of the lifting frame component.

As an option, the pre-tightening inclined strut assembly comprises an inner pipe, an outer pipe, a connecting pipe, an adjusting nut and a fastening mechanism, the inner pipe and the outer pipe are sleeved in a telescopic manner, the fastening mechanism is used for locking the relative positions of the outer pipe and the inner pipe, two ends of the adjusting nut are screwed to different internal threads and are respectively in threaded connection with the outer pipe and the connecting pipe, and two ends of an inclined strut formed by sequentially connecting the inner pipe, the outer pipe and the connecting pipe are respectively hinged to the guide rail assembly and the fixing seat assembly.

As another option, the pre-tightening inclined strut assembly comprises two inclined struts, and a connecting seat and a hinge sleeve which are respectively arranged at two ends of each inclined strut, wherein each inclined strut is hinged with the connecting seat, the connecting seat is fixed on the coal blocking plate, the hinge sleeve is hinged with a cross beam on the guide rail assembly, and the two inclined struts are arranged at two sides of the guide rail assembly; the inclined support rod comprises an inner pipe, an outer pipe, a connecting pipe, an adjusting nut and a fastening screw, the inner pipe and the outer pipe are sleeved in a telescopic mode, the fastening screw is used for locking the relative positions of the outer pipe and the inner pipe, and the two ends of the adjusting nut are connected with the outer pipe and the connecting pipe in a threaded mode respectively in different screwing directions.

The utility model has the beneficial effects that: compared with the prior art, the device fixing seat is quickly installed and fixed in a tensioning mode, the installation effect is firm and reliable, the device angle adjusting mechanism and the inclined strut mechanism can quickly adjust the opening angle and the opening height of the device, the device angle adjusting mechanism and the inclined strut mechanism are safe and reliable, the site construction efficiency is effectively improved, and the labor intensity of workers is reduced.

Drawings

FIG. 1 is a three-dimensional view of the overall structure in example 1 of the present invention;

FIG. 2 is a side view of the overall structure of the present invention in example 1;

FIG. 3 is a rear view of the overall structure in embodiment 1 of the present invention;

FIG. 4 is a side view of the mount assembly and the riser assembly of the present invention after installation in embodiment 1;

FIG. 5 is a front view of the mount assembly and riser assembly of the present invention after installation in embodiment 1;

fig. 6 is a schematic structural view of a diagonal brace in embodiment 1 of the utility model;

FIG. 7 is a schematic structural view of a holder assembly according to embodiment 2 of the present invention;

FIG. 8 is a schematic view of a lag screw structure of a holder assembly according to embodiment 2 of the present invention;

FIG. 9 is a schematic view showing the installation of the fixing base assembly on the coal deflector in embodiment 2 of the present invention;

FIG. 10 is another schematic view of the mounting of the holder assembly of embodiment 2 of the present invention on a coal deflector;

FIG. 11 is a three-dimensional schematic view of the attachment of the riser assembly to the rail in embodiment 3 of the present invention;

FIG. 12 is a rear view of the riser assembly of the present invention in embodiment 3 connected to the rails;

FIG. 13 is a partial top view of the riser assembly of the present invention in embodiment 3;

FIG. 14 is a three-dimensional view showing the assembled state of the pretensioned sprag assembly in embodiment 4 of the present invention;

FIG. 15 is a side view showing the assembled state of a pretensioned sprag assembly according to embodiment 4 of the present invention;

FIG. 16 is a plan view showing the assembled state of the pretensioned sprag assembly in embodiment 4 of the present invention;

the labels in the figure are: 1. the device comprises a fixed seat assembly, 1.1, a fixed frame, 1.2, support pins, 1.3, a tensioning block, 1.4, a sleeve, 1.5, a square head screw, 1.5.1, a square head and 1.5.2 and a pressing step;

2. the lifting frame assembly comprises a lifting frame assembly 2.1, a lifting frame 2.2, a positioning pin 2.3, a connecting lug plate 2.4, a limiting pin 2.5, a pin shaft 2.6, a spring, a sliding block 2.7, and a protrusion 2.8;

3. 3.1 of a guide rail component, 3.2 of a guide rail, 3.3 of a chain, 3.4 of an angle scale, 3.5 of a connecting plate, 3.6 of a gear block, 3.7 of a cross beam and a hinge sleeve;

4. the device comprises a pre-tightening inclined strut assembly, 4.1 parts of an inner pipe, 4.2 parts of an outer pipe, 4.3 parts of an adjusting nut, 4.4 parts of a connecting pipe, 4.5 parts of a fastening screw, 4.6 parts of an inclined strut, 4.7 parts of a connecting seat;

5. a sight assembly 6, a power rotating assembly 6.1, a rotator 6.2 and a pushing sliding plate; 7. a coal baffle plate.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples, but the utility model is not limited thereto.

As shown in fig. 1 and 2, an automatic drilling machine for a fully mechanized mining face mainly comprises a fixed base assembly 1, a lifting frame assembly 2, a guide rail assembly 3, a pre-tightening inclined strut assembly 4, a sight assembly 5 and a power rotation assembly 6. The fixing seat assembly 1 is mainly used for fixing the drilling mechanism on a coal blocking plate 7 of a chute, realizing that the drilling mechanism moves along the coal blocking plate 7 and adjusting the horizontal position of drilling, and meanwhile, the fixing seat assembly 1 can also provide support for the lifting frame assembly 2 and realize the height adjustment of the lifting frame assembly 2; the lifting frame assembly 2 is used for limiting the drilling angle of the equipment and adjusting the opening height of the equipment through the fixing seat assembly 1; the guide rail assembly 3 is used for supporting the power rotary assembly 6 to carry out drilling construction; the pre-tightening inclined strut assembly 4 provides support for the guide rail assembly 3 through the self-provided adjusting function, and eliminates a gap between the drilling mechanism and the fixed seat assembly 1 through the self-provided pre-tightening function, so that the drilling process of the equipment is more stable; the sight assembly 5 provides support for the drill rod through an internal hollow structure, and stability of the drilling process of the equipment is guaranteed; the power rotating assembly 6 rotates the rotating device under the drive of a hydraulic system and moves back and forth along the guide rail under the action of the chain. The drilling mechanism comprises a guide rail assembly 3, a power rotating assembly 6 and a sight assembly 5.

The mount assembly 1, the riser assembly 2, and the pretensioned sprag assembly 4 may be provided in various forms, and thus, specific structures of the respective assemblies will be described in detail with reference to specific embodiments.

Example 1: referring to fig. 1-5, the fixing base assembly 1 includes a fixing frame 1.1, a supporting pin 1.2, and a tensioning block 1.3. The fixing frame 1.1 is a U-shaped welding part and comprises two side plates which are arranged at opposite intervals, the side plates are welded on the inner sides of the two U-shaped supports, and a U-shaped groove which can be clamped on the upper edge of the coal baffle 7 is formed. An inner conical surface is arranged on one side of the inner wall of the U-shaped groove, an outer conical surface matched with the inner conical surface is arranged on the tensioning block 1.3, and through the matching of the outer conical surface and the inner conical surface, the tensioning block 1.3 is arranged in the U-shaped groove of the fixing frame 1.1, and meanwhile, the inner space of the U-shaped groove is filled until the fixing frame 1.1 is firmly fixed on the coal baffle plate 7; when the fixing frame 1.1 needs to move left and right, the tensioning blocks 1.3 only need to be taken out of the fixing frame 1.1, and the tensioning blocks 1.3 need to be symmetrically arranged. Because the fixing frame 1.1 is formed by welding two side plates and two U-shaped supports, the bottom of the U-shaped groove is open, when the fixing frame 1.1 is installed on the coal baffle 7, the groove opening faces downwards, in order to better limit the upper part of the fixing frame 1.1, supporting pins 1.2 are respectively arranged at two ends of the fixing frame 1.1, the supporting pins 1.2 penetrate through the two side plates and are positioned by using open pins, and after the fixing frame 1.1 is installed, the two supporting pins 1.2 are supported at the upper edge of the coal baffle 7. When the fixed frame 1.1 moves left and right on the coal baffle plate 7, the supporting pin 1.2 can reduce the friction between the inside of the U-shaped groove and the coal baffle plate 7 through the sliding on the upper edge of the coal baffle plate 7, so that the equipment can move more easily.

Furthermore, the two surfaces of the tension block 1.3, which are in contact with the inner wall of the U-shaped groove and the coal baffle plate 7, are provided with anti-skid patterns, such as tooth-shaped patterns or wave-shaped patterns, so that the stability of the fixing frame 1.1 on the coal baffle plate 7 is further improved.

Further, a sleeve 1.4 for supporting the hoisting frame assembly is arranged on the fixing frame 1.1, and a hinged seat hinged with the lower end of the pre-tightening inclined strut assembly 4 is arranged on the outer side of the sleeve 1.4.

As shown in fig. 4 and 5, the lifting frame assembly 2 mainly comprises a lifting frame 2.1, a positioning pin 2.2, a limiting pin 2.4 and a connecting ear plate 2.3. The lifting frame 2.1 is a square pipe, the sleeve 1.4 on the fixing frame 1.1 is also a square pipe, the lifting frame 2.1 is sleeved in the sleeve 1.4 and can slide up and down along the sleeve 1.4, through holes are formed in the corresponding side surfaces of the sleeve 1.4 and the lifting frame 2.1 and are arranged at intervals in the vertical direction, and the positioning pin 2.2 can penetrate through the through holes of the sleeve 1.4 and the lifting frame 2.1 to limit the vertical movement of the lifting frame 2.1 in the sleeve 1.4, so that the position of the lifting frame 2.1 is limited, and the horizontal hole opening height of the drilling machine is further limited. The fixed setting in top that rises frame 2.1 connecting ear board 2.3, connecting ear board 2.3 be the U-shaped structure, and its bottom surface is fixed on the top that rises frame 2.1, and the shaft hole of symmetry is seted up to two curb plates, and is articulated through the angle scale 3.3 of round pin axle 2.5 in with guide rail set 3, spacer pin 2.4 is inserted and is established in the lower part of connecting ear board 2.3 to be located the below of angle scale 3.3, be equipped with the backup pad that supports spacer pin 2.4 in the connecting ear board 2.3. After the limiting pin 2.4 is inserted, the limiting pin can be meshed with the angle disc 3.3, and after the limiting pin 2.4 is pulled out, the angle disc 3.3 can be rotated, so that the inclination angle of the guide rail assembly 3 can be adjusted.

As shown in fig. 1 and 2, the guide rail assembly 3 mainly comprises a guide rail 3.1, a chain 3.2, an angle scale 3.3 and a connecting plate 3.4. The guide rail 3.1 is of a box-type structure, the surface of the guide rail is subjected to light weight treatment, equipment is convenient to carry and move, and meanwhile, the upper surface of the guide rail 3.1 is connected with a rotator 6.1 of the power rotating assembly 6 through a pushing sliding plate 6.2. The chain 3.2 is arranged inside the guide rail 3.1, the chain 3.2 is matched with a tooth-shaped transmission wheel in the gyrator 6.1, and the tooth-shaped transmission wheel rotates along the chain 3.2 when the equipment drills to drive the power gyration component 6 to slide back and forth along the upper surface of the guide rail 3.1. An angle disc 3.3 and a connecting plate 3.4 are respectively fixed on the lower surface of the guide rail 3.1, the angle disc 3.3 is rotatably connected to the connecting lug plate 2.3 through a pin shaft 2.5, an external tooth-shaped structure is arranged on the outer edge of the angle disc 3.3, an inter-tooth groove is matched with a limiting pin 2.4 of the lifting frame assembly 2, and the angle disc 3.3 is locked to realize the positioning of a drilling angle; and a hinge seat which is used for being hinged with the upper end of the pre-tightening inclined strut assembly 4 is arranged on the connecting plate 3.4.

As shown in fig. 6, the pre-tightening diagonal brace assembly 4 includes an inner tube 4.1 and an outer tube 4.2, which are telescopically sleeved, a connecting tube 4.4, an adjusting nut 4.3 and a fastening screw 4.5, the fastening screw 4.5 is used for locking the relative position of the outer tube 4.2 and the inner tube 4.1, two ends of the adjusting nut 4.3 are provided with internal threads with different turning directions, the outer tube 4.2 and the connecting tube 4.4 are respectively provided with external threads, one end of the adjusting nut 4.3 is connected with the external threads of the outer tube 4.2, and the other end is connected with the external threads of the connecting tube 4.4, so as to form a diagonal brace formed by sequentially connecting the inner tube 4.1, the outer tube 4.2 and the connecting tube 4.4, two ends of the diagonal brace are respectively hinged to the connecting plate 3.4 on the rail assembly 3 and the sleeve 1.4 on the fixed seat assembly 1, and the hinged rotating shafts are parallel to the rotating shaft of the angle dial 3.3.

The pre-tightening inclined strut assembly 4 can support the guide rail assembly 3, the relative distance between the outer pipe 4.2 and the connecting pipe 4.4 can be adjusted by rotating the adjusting nut 4.3, the gap between the fixing frame 1.1 and the guide rail 3.1 is eliminated, and the stability of the guide rail 3.1 in the drilling process is ensured.

Further, set up a plurality of screw thread through-holes along its axial interval on the inner tube 4.1, be equipped with a screw thread through-hole on the outer tube 4.2, the screw thread through-hole of difference on the inner tube 4.1 aligns the back with the screw thread through-hole on the outer tube 4.2 and is fixed by fastening screw 4.5, can realize the length adjustment of bracing piece and fix.

As shown in fig. 1 and 2, the sight assembly 5 is of a hollow structure, is mounted at the front end of the upper surface of the guide rail 3.1, and can support a drill rod to a certain extent when the drill rod passes through, so that the serious jumping caused by the hanging and overlong drill rod during rotation is avoided, and the drilling quality and the equipment stability are not affected.

As shown in fig. 1 and 2, the power swivel assembly 6 comprises a gyrator 6.1 and a push sliding plate 6.2, the push sliding plate 6.2 is slidably arranged on the upper surface of the guide rail 3.1, the bottom of the gyrator 6.1 is connected with the push sliding plate 6.2, a drill rod for mounting a drill bit is connected to the gyrator 6.1, and the gyrator 6.1 drives the drill rod to rotate under the control of an external hydraulic system to provide torque for the drill bit at the frontmost end; meanwhile, a tooth-shaped driving wheel is arranged at the bottom of the front end of the gyrator 6.1 and meshed with the chain 3.2, and when the tooth-shaped driving wheel rotates, the power gyration component 6 can move back and forth along the guide rail 3.1, so that the functions of drilling and pulling up the equipment are realized.

On the basis of the present embodiment, the use of the drilling rig apparatus is explained in detail as follows: before drilling construction, the fixing frame 1.1 is arranged on the coal baffle plate 7, so that the supporting pin 1.2 is in contact with the upper edge of the coal baffle plate 7, and then the tensioning block 1.3 is arranged inside the fixing frame 1.1 from top to bottom until the fixing frame 1.1 is firm and reliable; sleeving the lifting frame 2.1 into a sleeve 1.4 at the front end of the fixing frame 1.1, adjusting to a proper height, then installing a positioning pin 2.2, and limiting the drilling height of the equipment; the limiting pin 2.4 is pulled out, the limiting pin 2.4 is inserted back again after the angle of the drilling mechanism is adjusted, and the angle of the drilled hole is limited; the pre-tightening inclined strut assembly 4 is arranged between the fixed frame 1.1 and the guide rail 3.1 through a pin shaft, the relative position of the inner tube 4.1 and the outer tube 4.2 is locked by tightening the fastening screw 4.5, and finally the adjusting nut 4.3 is adjusted to pre-tighten, so that gaps between mechanisms are eliminated.

After the height, the angle and the diagonal brace of the equipment are adjusted, normal drilling operation can be carried out; after the drilling operation is finished, the equipment can move left and right along the coal baffle 7 after the tensioning block 1.3 is taken out, the equipment is adjusted to the next drilling position, and the drilling construction is continued after the fixing frame 1.1 is fixed.

Example 2: in this embodiment, another structure form is proposed for the mount assembly 1 on the basis of embodiment 1, and the structures of other assemblies are the same as those of embodiment 1.

As shown in fig. 7-10, the fixed base assembly in this embodiment includes a fixed base 1.1, a support pin 1.2, and a lag screw 1.5. The fixing frame 1.1 is a U-shaped welding part and comprises two side plates which are arranged at opposite intervals, the side plates are welded on the inner sides of the two U-shaped supports, and a U-shaped groove which can be clamped on the upper edge of the coal baffle 7 is formed. Because mount 1.1 is formed by two curb plates and two U-shaped support welding, therefore, the tank bottom in U-shaped groove is open, when mount 1.1 was installed on coal deflector 7, the notch was down, for better spacing to mount 1.1 upper portion, set up supporting pin 1.2 respectively at the both ends of mount, supporting pin 1.2 passes two curb plates to fix a position with the split pin, after mount 1.1 installed, two supporting pins 1.2 supported the border on coal deflector 7. When the fixed frame 1.1 moves left and right on the coal baffle plate 7, the supporting pin 1.2 can reduce the friction between the inside of the U-shaped groove and the coal baffle plate 7 through the sliding on the upper edge of the coal baffle plate 7, so that the equipment can move more easily.

In order to realize the firmness of the fixing frame 1.1 fixed on the coal blocking plate, the coal blocking plate 7 and the two side plates forming the fixing frame 1.1 are provided with corresponding through holes, the through hole of one side plate is a square hole, such as a square hole or an inner hexagonal hole, the square head of the square head screw 1.5 is correspondingly set to be a square head 1.5.1 or a hexagonal head, and the square head screw with the square head 1.5.1 is adopted in the embodiment, as shown in fig. 8.

As shown in fig. 9, a square head screw 1.5 penetrates through the through holes of the fixing frame 1.1 and the coal blocking plate 7 and is connected with a locking nut, a square head 1.5.1 of the square head screw 1.5 is matched with a square hole at one side of the fixing frame 1.1, a compression step 1.5.2 is further arranged on the square head screw 1.5, the square head screw 1.5 is pulled towards one side by virtue of threads while the locking nut is screwed down, so that the compression step 1.5.2 is pressed against the coal blocking plate 7, a gap between the coal blocking plate 7 and the fixing frame 1.1 is compressed, and the fixing frame 1.1 is fixed on the coal blocking plate 7.

As a further arrangement, as shown in fig. 10, an end surface of the pressing step 1.5.2 contacting the coal baffle 7 may be an external conical surface, one end of the through hole of the coal baffle 7 near the pressing step 1.5.2 is provided with an internal conical surface, and the fixing frame 1.1 and the coal baffle 7 are firmly connected by matching the external conical surface and the internal conical surface.

Example 3: the present embodiment is another structural form proposed for the head assembly 2 on the basis of embodiment 1, and the structures of other components are the same as those of embodiment 1.

As shown in fig. 11-13, the difference between the lift truck assembly of the present embodiment and embodiment 1 is the structure of the limit pin 2.4, and the structure of the limit pin 2.4 is different because the angle scale of the guide rail assembly of embodiment 1 is replaced by the gear block 3.5, the gear block 3.5 is fixed at the bottom of the guide rail 3.1, and is hinged with the connecting lug plate 2.3 at the upper part of the lift truck 2.1 through the pin shaft 2.5, and the gear block 3.5 is engaged with the slide block 2.7 on the lift truck 2.1 to lock the angle of the guide rail 3.1. Slider 2.7 sets up on spacer pin 2.4, and 2.4 horizontal slip supports on the both sides board of engaging lug board 2.3, slider 2.7 install at spacer pin 2.4's middle part, 2.4 one end of spacer pin is the pull ring, pushes up the lateral surface in connecting lug board 2.3 one side, the cover is equipped with spring 2.6 on the spacer pin 2.4, slider 2.7 one end and the contact of spring 2.6, the other end is by installing the split pin axial positioning on spacer pin 2.4. The slider 2.7 is provided with a bulge 2.8 along the radial direction of the limit pin 2.4, under the condition that the pull ring is not subjected to external force, the elasticity of the spring 2.6 can keep the bulge 2.8 on the slider 2.7 meshed with the gear of the gear block 3.5, the position of the gear block 3.5 is locked, when the pull ring is pulled outwards, the spring 2.6 is compressed, the slider 2.7 slides along with the limit pin 2.4, and the bulge 2.8 on the slider 2.7 is disengaged from the gear block 3.5, so that the angle of the guide rail 3.1 can be adjusted; after the pull ring is released, the spring 2.6 pushes the slide block 2.7 to reset, and the bulge 2.8 is meshed with the gear block 3.5 to limit the gear block 3.5.

Further, limiting plate is arranged at the bottom of the limiting lug plate 2.3 and used for preventing the limiting pin from rotating, and the situation that after the gear block is rotated for 3.5, the position of the protrusion 2.8 on the sliding block 2.7 is changed and cannot be meshed with the gear block 3.5 is avoided.

It should be noted that two rows of external teeth axially arranged at intervals are arranged on the gear block 3.5, two spaced protrusions 2.8 (as shown in fig. 13) are arranged on the corresponding sliding block 2.7, the distance between the two rows of external teeth on the gear block 3.5 is greater than the width of the external teeth, and after the sliding block 2.7 slides along with the limit pin 2.4, the two protrusions 2.8 and the two rows of external teeth are in a staggered state, and the engagement with the gear block 3.5 is released.

As a deformation, the limit pin 2.4 horizontally slides along the axial direction of the gear block 3.5, the sliding of the limit pin 2.4 can be set to be vertical sliding, at the moment, the limit pin passes through the bottom plate of the connecting lug plate and can be opened from the side surface of the lifting frame to control the vertical sliding of the limit pin, a pull ring of the limit pin is propped against the lower surface of the upper bottom plate of the connecting lug plate, one end of a spring sleeved on the limit pin is propped against the upper surface of the bottom plate, and the other end of the spring is propped against the lower end surface of the sliding block; the slider is installed at the spacer pin tip, and the upper end of slider is used for meshing with the external tooth of gear piece. The limiting pin is pulled downwards in the same way, the sliding block leaves the gear block, the meshing between the sliding block and the gear block can be released, the limiting pin is loosened, and the sliding block is meshed with the gear block again under the action of the elastic force of the spring.

Example 4: the present embodiment is another structure form proposed for the pre-tightening bracing assembly on the basis of embodiment 1, and the structures of other assemblies are the same as those of embodiment 1.

As shown in fig. 14-16, the pre-tightening diagonal brace assembly in this embodiment has two diagonal braces 4.6 with the same structure, the composition of the diagonal brace 4.6 is the same as that in embodiment 1, the connecting tube forming the diagonal brace 4.6 is fixedly connected with the coal blocking plate 7 through the connecting seat 4.7, the connecting seat 4.7 is provided with a U-shaped slot, which is clamped on the upper edge of the coal blocking plate 7, one side of the connecting seat 4.7 is provided with a hinged seat, which is hinged with the end of the connecting tube, and the hinged shaft is perpendicular to the rotating shaft of the guide rail 3.1. The inner tube forming the diagonal brace 4.6 is hinged with a hinge sleeve 3.7, the hinged shaft of the hinge sleeve is vertical to the rotating shaft of the guide rail 3.1 and parallel to the hinged shaft at the end part of the connecting tube, and the hinge sleeve 3.7 is hinged on a cross beam 3.6 at the front end of the guide rail 3.1. Two inclined supporting rods 4.6 are respectively positioned at two sides of the guide rail 3.1. Because the articulated shaft of the end parts of the two inclined stay bars 4.6 is vertical to the pitching rotating axis of the guide rail 3.1, the two inclined stay bars 4.6 can avoid the left and right shaking of the guide rail 3.1 in the drilling process, and the drilling stability of the drilling machine is further improved.

In the diagonal rod 4.6, the inner tube is connected with the connecting lug through a joint bearing and then hinged with the hinge sleeve 3.6 through the connecting lug; the connecting pipe passes through joint bearing and is connected with the engaging lug, and rethread engaging lug is articulated with articulated seat, makes the adaptable different angles in both ends of diagonal brace 4.6, when supporting, only need with mount 4.7 card on coal baffle 7 can.

The above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those of ordinary skill in the art that the specific embodiments of the present invention can be modified or substituted with equivalents with reference to the above embodiments, and any modifications or equivalents without departing from the spirit and scope of the present invention are within the scope of the claims to be appended.

Claims (10)

1. The utility model provides an automatic drilling machine that fully mechanized coal mining face used which characterized in that: the drilling mechanism comprises a fixed seat assembly, a fixed seat assembly and a drilling mechanism, wherein the fixed seat assembly is used for realizing the fixed installation of the drilling mechanism on a coal baffle plate and the movement of the drilling mechanism along the coal baffle plate;

the lifting frame assembly is arranged on the fixed seat assembly and connected with the drilling mechanism so as to adjust the horizontal height of the drilling mechanism;

the pre-tightening inclined strut assembly is connected between the drilling mechanism and the fixed seat assembly, provides support for the drilling mechanism and eliminates a gap between the drilling mechanism and the fixed seat assembly through a self pre-tightening function;

the drilling mechanism comprises a guide rail assembly and a power rotating assembly; the guide rail assembly is connected with the lifting frame assembly and the pre-tightening inclined strut assembly, and an angle adjusting mechanism is arranged in the guide rail assembly to adjust the drilling angle of the drilling tool; the power rotation assembly is arranged on the guide rail of the guide rail assembly in a sliding mode and provides rotation power for the drilling tool.

2. The automated drilling machine for use with a fully mechanized mining face of claim 1, wherein: the fixed seat assembly comprises a fixed frame, a supporting pin and a tensioning block, the fixed frame is provided with a sleeve connected with the lifting frame assembly and a clamping groove used for being clamped at the upper edge of the coal baffle, and at least one side of the inner wall of the clamping groove is provided with an inner conical surface; the tensioning block is used for being clamped between the coal baffle and the inner wall of the clamping groove provided with the inner conical surface, and the tensioning block is provided with an outer conical surface matched with the inner conical surface; the support pin is arranged on the fixed frame and is contacted with the upper edge of the coal baffle plate.

3. The automated drilling machine for use with a fully mechanized mining face of claim 1, wherein: the fixed seat assembly comprises a fixed frame, a supporting pin and a lag screw, and the fixed frame is provided with a sleeve connected with the lifting frame assembly and a clamping groove used for being clamped at the upper edge of the coal baffle plate; the supporting pin is rotatably arranged on the fixed frame and is contacted with the upper edge of the coal baffle plate; the square head screw penetrates through the fixing frame and the coal blocking plate to be connected with the locking nut, the square head of the square head screw is matched with the square hole on one side of the fixing frame, a pressing step is further arranged on the square head screw and used for being pressed against the coal blocking plate so as to compress a gap between the coal blocking plate and the fixing frame.

4. The automated drilling machine for use with a fully mechanized mining face of claim 3, wherein: the end face of the pressing step on the square head screw is of an outer conical structure, and an inner conical structure matched with the outer conical structure is arranged at one end of the through hole for mounting the square head screw on the coal baffle plate.

5. The automated drilling machine for use with a fully mechanized mining face of claim 1, wherein: the lifting frame assembly comprises a lifting frame, a positioning pin, a limiting pin and a connecting lug plate, the lifting frame is vertically arranged in a sleeve of the fixing frame assembly, the positioning pin is used for penetrating through holes formed in the lifting frame and the sleeve to limit the height of the lifting frame, the connecting lug plate is fixed to the top end of the lifting frame to rotatably install the angle adjusting mechanism of the guide rail assembly, and the limiting pin is arranged on the connecting lug plate in a plugging and pulling mode and meshed with the angle adjusting mechanism to lock the rotating angle of the angle adjusting mechanism.

6. The automated drilling machine for use with a fully mechanized mining face of claim 1, wherein: the lifting frame assembly comprises a lifting frame, a positioning pin, a limiting pin and a connecting lug plate, the lifting frame is vertically arranged in a sleeve of the fixing frame assembly, the positioning pin is used for penetrating through holes formed in the lifting frame and the sleeve to limit the height of the lifting frame, the connecting lug plate is fixed to the top end of the lifting frame to rotatably install an angle adjusting mechanism of the guide rail assembly, external teeth are arranged on the angle adjusting mechanism, two ends of the limiting pin are slidably supported on two side plates of the connecting lug plate, a sliding block meshed with the external teeth of the angle adjusting mechanism is arranged in the middle of the limiting pin, a spring is further arranged on the limiting pin, the sliding block is meshed with the angle adjusting mechanism by means of the elasticity of the spring, and the meshing of the sliding block and the angle adjusting mechanism is relieved by pulling the limiting pin.

7. The automated drilling machine for use with a fully mechanized mining face of claim 6, wherein: the moving direction of the limiting pin is parallel or vertical to the rotating axis of the angle adjusting mechanism.

8. The automated drilling machine for use with a fully mechanized mining face of claim 1, wherein: the guide rail assembly also comprises a guide rail with a box structure and a chain arranged in the guide rail, and the angle adjusting mechanism is an angle disc or a gear block with an external tooth structure; a sight assembly for supporting a drill rod is fixedly arranged at the front end of the guide rail, the upper surface of the guide rail is connected with the power rotation assembly in a sliding manner, and the chain is connected with a driving wheel in the power rotation assembly in a matching manner; the angle adjusting mechanism is fixedly arranged on the lower surface of the guide rail and is rotatably connected with the top end of the lifting frame component.

9. The automated drilling machine for use with a fully mechanized mining face of claim 1, wherein: the pre-tightening inclined strut assembly comprises an inner pipe, an outer pipe, a connecting pipe, an adjusting nut and a fastening mechanism, the inner pipe and the outer pipe are sleeved with the pre-tightening inclined strut assembly in a telescopic mode, the fastening mechanism is used for locking the relative positions of the outer pipe and the inner pipe, the two ends of the adjusting nut are connected with the outer pipe and the connecting pipe in threaded mode in different screwing directions, and the two ends of an inclined strut formed by sequentially connecting the inner pipe, the outer pipe and the connecting pipe are hinged to the guide rail assembly and the fixing seat assembly respectively.

10. The automated drilling machine for use with a fully mechanized mining face of claim 1, wherein: the pre-tightening inclined strut assembly comprises two inclined strut rods, a connecting seat and a hinge sleeve, wherein the connecting seat and the hinge sleeve are respectively arranged at two ends of the inclined strut rods; the inclined support rod comprises an inner pipe, an outer pipe, a connecting pipe, an adjusting nut and a fastening screw, the inner pipe and the outer pipe are sleeved in a telescopic mode, the fastening screw is used for locking the relative positions of the outer pipe and the inner pipe, and the two ends of the adjusting nut are connected with the outer pipe and the connecting pipe in a threaded mode respectively in different screwing directions.

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