CN112179702B

CN112179702B - Fixed point coal sample taking device

Info

Publication number: CN112179702B
Application number: CN202010863663.1A
Authority: CN
Inventors: 张成兵
Original assignee: Xuzhou City Su Machinery Equipment Manufacturing Co ltd
Current assignee: Xuzhou City Su Machinery Equipment Manufacturing Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2022-05-13
Anticipated expiration: 2040-08-25
Also published as: CN112179702A

Abstract

The invention relates to the technical field of coal sampling devices, and discloses a fixed-point coal sampling device which comprises a conversion device, a cylinder barrel, a transmission device, a coring device, a core taking pipe, a drill rod, a drill bit, a valve core, a core pipe, a sealing ring, a spring, an end cover, a connecting cover, a key bar, a sealing piece and an openable block. The fixed-point coal sample taking device is simple in structure and convenient to operate, can be used for quickly and conveniently carrying out fixed-point coal sample taking under a coal mine, saves a large amount of time, is high in working efficiency, saves more labor for coal sample taking, reduces the working difficulty of workers, and meets the use requirement.

Description

Fixed point coal sample taking device

Technical Field

The invention relates to the technical field of coal sampling devices, in particular to a fixed-point coal sampling device.

Background

Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and opencast coal mines. When the coal seam is far from the ground surface, a tunnel is usually dug to the underground, so that the coal is a mineworker coal mine. When the coal seam is very close to the earth surface, the coal is generally excavated by directly stripping the earth surface, which is an open pit coal mine. The vast majority of coal mines in China belong to underground coal mines.

Coal mines encompass a large area above ground and below ground as well as associated facilities. Coal mines are reasonable spaces excavated by humans when excavating geological formations rich in coal and generally include roadways, wells, and mining surfaces, among others. Coal is the most predominant solid fuel, one of the flammable organic rocks.

Need sample to specific degree of depth position in the coal seam under the colliery, adopt the rig to punch a hole to specific degree of depth to the fixed point sample on the colliery now, utilize the water under high pressure to punch a hole, gather in the coal sample of outflow, this kind is inaccurate to fixed point position collection coal sample, and this kind of collection process still need consume a large amount of time, and work efficiency is low, can not satisfy the needs that use.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a fixed-point coal sample taking device, which has the advantages of being capable of quickly and conveniently carrying out fixed-point coal sample taking under a coal mine, saving a large amount of time, having high working efficiency, saving more labor for coal sample taking, reducing the working difficulty of workers, meeting the use requirement and the like, and solves the problems that after a drilling machine is adopted for punching the fixed-point sample to a specific depth on the coal mine on the market, high-pressure water is utilized for punching, and the sample is collected in the coal sample flowing out, so that the collection of the coal sample at the fixed-point position is inaccurate, a large amount of time is consumed in the collection process, the working efficiency is low, and the use requirement cannot be met.

(II) technical scheme

In order to realize the purposes of quickly and conveniently sampling coal samples at fixed points in a coal mine, saving a large amount of time, having high working efficiency, saving more labor for sampling coal samples, reducing the working difficulty of workers and meeting the use requirement, the invention provides the following technical scheme: the utility model provides a fixed point coal sample device, includes conversion equipment, cylinder, transmission, coring device, gets core pipe, drilling rod, drill bit, case, core pipe, sealing washer, spring, end cover, hookup lid, keybar, sealing member and openable block, one side fixed mounting of conversion equipment has the cylinder, and one side fixed mounting of cylinder has transmission, and one side fixed mounting of transmission has coring device, is provided with in the coring device and gets core pipe, is provided with the drilling rod in the coring device, and the one end fixed mounting of drilling rod has the drill bit, is provided with the case in the conversion equipment, is provided with the core pipe in the conversion equipment, and core pipe and case fixed connection.

Preferably, two sealing rings are fixedly installed in the transmission device, and two ends of the core tube are respectively and fixedly connected with the corresponding sealing rings.

Preferably, the springs sleeved on the outer side of the core pipe are fixedly mounted on the side, close to each other, of each of the two sealing rings, and one ends, close to each other, of the two springs are fixedly connected with the core pipe.

Preferably, an end cover is arranged in the transmission device, the end cover is matched with the cylinder barrel, and a connecting cover is arranged in the conversion device.

Preferably, the side wall of the cylinder barrel is provided with a key bar, and the cylinder barrel is connected with the key bar in a sliding manner.

Preferably, a sealing element is arranged in the coring device and is fixedly connected with the coring pipe.

Preferably, the coring device is provided with an openable block, and the openable block is matched with the coring pipe.

Preferably, the cylinder barrel is provided with a connecting sleeve, and the core taking pipe is in threaded connection with the cylinder barrel through the connecting sleeve.

Preferably, the cylinder barrel is provided with threads, and the cylinder barrel is in threaded connection with the end cover and the connecting cover through the threads.

(III) advantageous effects

Compared with the prior art, the invention provides a fixed-point coal sample taking device, which has the following beneficial effects:

1. the fixed point coal sample taking device takes the first part as a conversion device; namely, in the normal drilling process of the drilling machine, low-pressure water flows to the outer wall of the cylinder barrel through the core pipe and reaches the foremost end of the device to act on the drilling bit for cooling the foremost end drill bit. The second part is a transmission device; when the water supply pressure is switched to a high-pressure state, high-pressure water acts on the cylinder barrel on the transmission device to drive the cylinder barrel compression spring to axially advance so as to provide power for the coring device. If the water supply pressure is low, the cylinder barrel is restored to move backwards under the action of the spring force in the transmission device. The third part is a coring device; under the action of an axial thrust provided by the transmission device, the core taking pipe moves along with the cylinder barrel, and the core taking pipe jacks up the drill bit which can be opened and closed. The drilling machine clamps the drill rod and rotates to feed, the core taking pipe rotates along with the drill bit to cut coal, and small-particle coal blocks or coal cinder are stored in the core taking pipe, so that coal sampling is finished, pressure is reduced, the spring provides power, and the coring device retracts. And (5) the drilling machine drills, the coal sample in the core taking pipe is taken down, and the fixed-point sampling is finished.

2. This fixed point coal sample device punches through this reaming device, and the integrated integrative device of fixed point is used for normally drilling under the low pressure state, need not return the drilling rod, reduces the time, is used for the fixed point sample under the high pressure state, guarantees that the fixed point sample is accurate. The conversion device flows water under two different pressures, and in a low-pressure state, the water directly flows out through a core pipe which is directly connected with a drill bit and used for cooling the drill bit. Under high pressure, the water compresses the spring, pushes the valve core, and distributes a part of high-pressure water to the side surface to flow out. Under low pressure, water flows out through the inner hole of the core tube, under a high pressure state, the water flows out from the outer wall of the cylinder barrel to the drill bit through the core tube, meanwhile, high pressure water also acts on the cylinder barrel, the compression spring is driven to push forwards, the connecting sleeve is connected with the cylinder barrel and the core taking tube through thread connection, the end cover is connected with the cylinder barrel through thread connection, the cylinder barrel, the end cover, the connecting cover and the core taking tube are connected into a whole through thread connection and are pushed out under high pressure, and the piston is provided with a sealing ring for sealing, so that no leakage is ensured. The coring device is under high pressure, and the coring pipe stretches out, and the drill bit on the coring pipe welds on the coring pipe, and the keybar is fixed at the cylinder outer wall, and the cylinder slides on the keybar, and the rig presss from both sides tight drilling rod and rotates and bores down, and the drill bit rotates together with coring pipe, drill bit and cuts the coal seam and gets the coal sample to the coring pipe hole, and this moment sample is accomplished.

3. This fixed point coal sample device, under low pressure state through the coring device, under the effect of transmission spring force, the cylinder drives the coring pipe withdrawal, but the switching piece is under the effect of spring force, and the inner hole is sealed to the initial condition of reply, prevents that the coal cinder from getting into the coring pipe. And the drilling machine immediately starts the drill rod, unloads the device, takes out the coal sample of the core taking pipe and finishes the coal sample at a fixed point.

The coal sampling device is simple in structure and convenient to operate, can be used for quickly and conveniently sampling coal at fixed points in a coal mine, saves a large amount of time, is high in working efficiency, saves more labor for sampling coal, reduces the working difficulty of workers, and meets the using requirement.

Drawings

FIG. 1 is a schematic view of a fixed point coal sampling device according to the present invention;

FIG. 2 is a schematic structural diagram of a coring device of a fixed-point coal sampling device according to the present invention;

FIG. 3 is a schematic view of a connection structure between a valve core and a core tube of a fixed-point coal sampling device according to the present invention;

FIG. 4 is a schematic view of a partial structure of a cylinder of a fixed-point coal sampling device according to the present invention;

FIG. 5 is a schematic top view of a fixed point coal sampling apparatus according to the present invention;

fig. 6 is an enlarged partial structure view of a portion C in fig. 1 of a fixed point coal sampling device according to the present invention.

In the figure: the automatic coring device comprises a conversion device 1, a cylinder barrel 2, a transmission device 3, a coring device 4, a core tube 5, a drill rod 6, a drill bit 7, a valve core 8, a core tube 9, a sealing ring 10, a spring 11, an end cover 12, a connecting cover 13, a key bar 14, a sealing element 15 and an openable block 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a fixed point coal sampling device includes a conversion device 1, a cylinder barrel 2, a transmission device 3, a coring device 4, a core tube 5, a drill rod 6, a drill bit 7, a valve core 8, a core tube 9, a seal ring 10, a spring 11, an end cover 12, a connecting cover 13, a key bar 14, a sealing member 15 and an openable block 16, wherein the cylinder barrel 2 is fixedly installed on one side of the conversion device 1, the transmission device 3 is fixedly installed on one side of the cylinder barrel 2, the coring device 4 is fixedly installed on one side of the transmission device 3, the core tube 5 is arranged in the coring device 4, the drill rod 6 is arranged in the coring device 4, the drill bit 7 is fixedly installed at one end of the drill rod 6, the valve core 8 is arranged in the conversion device 1, the core tube 9 is arranged in the conversion device 1, and the core tube 9 is fixedly connected with the valve core 8.

In the invention, two sealing rings 10 are fixedly arranged in the transmission device 3, and two ends of the core tube 9 are respectively and fixedly connected with the corresponding sealing rings 10.

In the invention, springs 11 sleeved outside the core tube 9 are fixedly arranged on the sides of the two sealing rings 10 close to each other, and one ends of the two springs 11 close to each other are fixedly connected with the core tube 9.

In the invention, an end cover 12 is arranged in the transmission device 3, the end cover 12 is matched with the cylinder barrel 2, and a connecting cover 13 is arranged in the conversion device 3.

In the invention, the side wall of the cylinder barrel 2 is provided with the key bar 14, and the cylinder barrel 2 is connected with the key bar 14 in a sliding way.

In the invention, a sealing element 15 is arranged in the coring device 4, and the sealing element 15 is fixedly connected with the coring pipe 5.

In the invention, the coring device 4 is provided with the openable block 16, and the openable block 16 is matched with the coring pipe 5.

In the invention, the cylinder barrel 2 is provided with a connecting sleeve, and the core taking pipe 5 is in threaded connection with the cylinder barrel 2 through the connecting sleeve.

In the invention, the cylinder barrel 2 is provided with threads, and the cylinder barrel 2 is in threaded connection with the end cover 12 and the connecting cover 13 through the threads.

To sum up, in order to realize the reliability of the directional coal sampling device, the fixed-point coal sampling device divides the device functions into four parts: the first part is the conversion device 1; that is, during normal drilling of the drilling machine, low-pressure water flows through the core tube 9 to the outer wall of the cylinder barrel 2 to the foremost end of the device, acting on the drilling bit 7 for cooling the foremost end bit 7. The second part is a transmission device 3; when the water supply pressure is switched to a high-pressure state, high-pressure water acts on the cylinder barrel 2 on the transmission device 3 to drive the cylinder barrel 2 to compress the spring 11 to axially advance so as to provide power for the coring device 4, and if the water supply pressure is lower, the cylinder barrel 2 recovers to move backwards under the action of the spring force in the transmission device 3. The third part is a coring device 4; under the action of axial thrust provided by a transmission device 3, a core taking pipe 5 moves along a cylinder barrel 2, the core taking pipe 5 jacks up a drill bit 7 which can be opened and closed, a drilling machine clamps a drill rod 6 to rotate and feed, the core taking pipe 5 rotates along with the drill bit 7 to cut coal, small-particle coal blocks or coal cinder is stored in the core taking pipe 5, the coal sampling is finished, the pressure is reduced, a spring 11 provides power, the core taking device 4 retracts, the drilling machine starts drilling, the coal sample in the core taking pipe 5 is taken down, the fixed-point sampling is finished, the hole expanding device is a hole-drilling and fixed-point integrated device, the hole expanding device is used for normal drilling in a low-pressure state, the drill rod 6 does not need to be returned, the time is reduced, the fixed-point sampling is used in the high-pressure state, the fixed-point sampling is accurate, the water flow direction of the device under two different pressures is converted, water directly flows out through a core pipe 9 in the low-pressure state, and the core pipe 9 is directly connected to the drill bit 7, for cooling the drill bit 7, under the high pressure state, the water compresses the spring 11, push the valve core, distribute a part of high pressure water to the side to flow out, under the low pressure, the water flows out through the inner hole of the core tube 9, under the high pressure state, not only through the core tube 9, flow out to the drill bit 7 from the outer wall of the cylinder barrel 2, but also the high pressure water acts on the cylinder barrel 2, the compression spring 11 drives to push forward, the connecting sleeve connects the cylinder barrel 2 and the coring tube 5 through the screw thread connection, the end cover 12 connects with the cylinder barrel 2 through the screw thread connection, the cylinder barrel 2, the end cover 12, the connecting cover 13, the coring tube 5 are connected into a whole through the screw thread connection and pushed out under the high pressure, the piston is provided with a sealing ring for sealing, no leakage is ensured, under the high pressure state, the coring tube 5 stretches out, the drill bit 7 on the coring tube 5 is welded on the coring tube 5, the keybar 14 is fixed on the outer wall of the cylinder barrel 2, the cylinder barrel 2 slides on the keybar 14, the drilling machine clamps the drilling rod 6 to rotate and drill downwards, the drilling bit 7 and the coring pipe 5, the drilling bit 7 rotates together to cut a coal bed and take a coal sample to the inner hole of the coring pipe 5, so far, the sampling is completed, the coring device 4 is in a low-pressure state, under the action of the spring force of the transmission device 3, the cylinder barrel 2 drives the coring pipe 5 to retract, the openable block 16 is under the action of the spring force, the initial state is recovered to seal the inner hole, the coal block is prevented from entering the coring pipe 5, so far, the drilling machine immediately plays the drilling rod 6, the device is disassembled, the coal sample of the coring pipe 5 is taken out, the fixed-point coal sample taking is completed, so that the fixed-point coal sample taking is rapidly and conveniently carried out under a coal mine, a large amount of time is saved, the working efficiency is high, the coal sample taking is more labor-saving, the working difficulty of workers is reduced, and the use requirement is met.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fixed point coal sample taking device comprises a conversion device (1), a cylinder barrel (2), a transmission device (3), a coring device (4), a core taking pipe (5), a drill rod (6), a drill bit (7), a valve core (8), a core pipe (9), a sealing ring (10), a spring (11), an end cover (12), a connecting cover (13), a key bar (14), a sealing piece (15) and an openable block (16), and is characterized in that the cylinder barrel (2) is fixedly arranged on one side of the conversion device (1), the transmission device (3) is fixedly arranged on one side of the cylinder barrel (2), the coring device (4) is fixedly arranged on one side of the transmission device (3), the core taking pipe (5) is arranged in the coring device (4), the drill rod (6) is arranged in the drill rod (4), the drill bit (7) is fixedly arranged at one end of the drill rod (6), and the valve core (8) is arranged in the conversion device (1), be provided with core pipe (9) in conversion equipment (1), and core pipe (9) and case (8) fixed connection, end cover (12) fixed connection is in the one end of cylinder (2), and sealing washer (10) set up between cylinder (2) and end cover (12), drilling rod (6) set up on getting core pipe (5), sealing member (15) set up the one end of getting core pipe (5), but switching piece (16) set up the one end inboard at coring device (4), fixed mounting has two sealing washers (10) in transmission (3), and the both ends of core pipe (9) respectively with corresponding sealing washer (10) fixed connection, the equal fixed mounting in one side that two sealing washers (10) are close to each other establishes spring (11) in the core pipe (9) outside, the one end that two springs (11) are close to each other all with core pipe (9) fixed connection, the drilling machine is characterized in that an end cover (12) is arranged in the transmission device (3), the end cover (12) is matched with the cylinder barrel (2), a connection cover (13) is arranged in the conversion device (1), a key bar (14) is arranged on the side wall of the cylinder barrel (2), the cylinder barrel (2) is in sliding connection with the key bar (14), a sealing element (15) is arranged in the coring device (4), the sealing element (15) is fixedly connected with the coring pipe (5), an openable and closable block (16) is arranged on the coring device (4), the openable and closable block (16) is matched with the coring pipe (5), a connection sleeve is arranged on the cylinder barrel (2), the coring pipe (5) is in threaded connection with the cylinder barrel (2) through the connection sleeve, threads are arranged on the cylinder barrel (2), the cylinder barrel (2) is in threaded connection with the end cover (12) and the connection cover (13) through the threads, and the drilling machine is used in the normal drilling process, the low-pressure water flows to the outer wall of the cylinder barrel (2) through the core pipe (9), reaches the foremost end of the device, acts on the drilling drill bit (7) and is used for cooling the foremost end drill bit (7), when the water supply pressure is switched to a high-pressure state, the high-pressure water acts on the cylinder barrel (2) on the transmission device (3) to drive the compression spring (11) of the cylinder barrel (2) to axially advance and provide power for the coring device (4), if the water supply pressure is lower, the cylinder barrel (2) returns to move backwards under the action of the internal spring force of the transmission device (3), the core taking pipe (5) moves along with the cylinder barrel (2) under the action of providing axial thrust of the transmission device (3), the core taking pipe (5) pushes the openable and closable drill bit (7) open, the drilling machine clamps the drill rod (6) to rotate and rotates along with the drill bit (7) to cut coal, and small-particle coal briquettes or coal slag are contained in the core taking pipe (5), and when the coal sample taking is finished, reducing the pressure, providing power by the spring (11), retracting the coring device (4), pulling the drill, taking down the coal sample in the core taking pipe (5), and finishing the fixed-point sampling.