CN217462028U - Drilling, punching and expanding integrated device for coal mine - Google Patents
Drilling, punching and expanding integrated device for coal mine Download PDFInfo
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- CN217462028U CN217462028U CN202221657485.8U CN202221657485U CN217462028U CN 217462028 U CN217462028 U CN 217462028U CN 202221657485 U CN202221657485 U CN 202221657485U CN 217462028 U CN217462028 U CN 217462028U
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- main shaft
- drill rod
- drilling
- connector
- water pressure
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Abstract
The utility model relates to a bore towards and expand integrative device for coal mine, it includes the drilling rod body, drilling rod connector and drill bit connector, be equipped with a hollow main shaft in the water pipeline in the drilling rod body, the outside cover of one end that is close to the drilling rod connector of main shaft establishes first water pressure push sleeve, and is connected with the promotion stopper in the end department, the outside cover of the other end of main shaft establishes second water pressure push sleeve, first water pressure push sleeve sets up in first stop collar, and second water pressure push sleeve sets up in second stop collar; first stop collar and the fixed inside that sets up both ends around the body of drilling rod of second stop collar, the main shaft sets up between two arm claws, the one end that the main shaft is close to first water pressure and promotes the cover is equipped with one section rack section, and rack section sets up between the gear section of arm claw, promotes the arm claw through the interact of rack section cooperation gear section and expandes. The utility model discloses simple structure, convenient to use, it is not fragile.
Description
Technical Field
The utility model relates to a colliery probing technical field especially relates to a bore towards and expand integrative device for colliery.
Background
Five typical disasters in the production process of coal enterprises: the coal seam gas is treated by extraction through a drill hole, and the drill hole is required to be drilled by a drilling machine. In the process of exploring and draining a water hole and exploring and draining gas extraction, high-pressure water punching and hole expanding are needed for a drilled hole under a coal mine, so that the purposes of gas extraction and hole expanding are achieved.
The current application number is CN 201520639094.7's chinese patent, provides a bore and dashes and expand integrative device, connects body, reamer bit and case mechanism including the conversion, reaches the purpose of opening the bracing piece through the cooperation of water pressure and slide lock, and the slide lock structure has certain wearing and tearing after long-term high pressure uses, and life is not long, leads to the use cost of the device higher, fragile. Therefore, a drilling, punching and expanding integrated device for a coal mine, which has a simple structure, low use cost and long service life, is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the aforesaid not enough, provide a bore towards and expand integrative device for colliery, can effectively solve the present bore towards that is used for the colliery and expand integrative device operation complicacy, maintain trouble, the unstable problem of operation.
The purpose of the utility model is realized like this:
a drilling, punching and expanding integrated device for a coal mine comprises a drilling rod body, a drilling rod connector and a drill bit connector, wherein one end of the drilling rod body is connected with the drilling rod connector, the other end of the drilling rod body is connected with the drill bit connector, a water pipeline is arranged inside the drilling rod body, two symmetrical long cavities are respectively arranged on two sides of the outer wall, arm claws are arranged in the long cavities, one ends of the arm claws, close to the drilling rod connector, are rotatably arranged on the drilling rod body through pin shafts and are provided with gear sections, and a plurality of groups of blades are arranged on the outer sides of the other ends of the arm claws; the water pipeline sequentially penetrates through the drill rod connector, the drill rod body and the drill bit connector, and a water supply port is formed in the port of the drill rod connector;
a hollow main shaft is arranged in a water pipeline in the drill rod body, a first water pressure pushing sleeve is sleeved outside one end, close to a drill rod connector, of the main shaft and is connected with a pushing plug at the end, a second water pressure pushing sleeve is sleeved outside the other end of the main shaft, the first water pressure pushing sleeve is arranged in a first limiting sleeve, and the second water pressure pushing sleeve is arranged in a second limiting sleeve; the first limiting sleeve and the second limiting sleeve are fixedly arranged inside the front end and the rear end of the drill rod body; the main shaft is arranged between the two arm claws, one end of the main shaft, which is close to the first water pressure pushing sleeve, is provided with a rack section, the rack section is arranged between the gear sections of the arm claws, and the arm claws are pushed to be unfolded through the interaction of the rack section and the gear section; one end of the second limiting sleeve, which is close to the drill bit connector, is connected with a second compression spring, one end of the second compression spring is fixed on the second limiting sleeve, and the other end of the second compression spring is fixed in the drill rod body.
Furthermore, the end of the main shaft close to the drill rod connector is connected with a pushing plug.
Furthermore, a circulation hole penetrating through the main shaft is arranged in the pushing plug.
Furthermore, a plurality of sealing elements are arranged between the first water pressure pushing sleeve and the first limiting sleeve, and a plurality of sealing elements are arranged between the second water pressure pushing sleeve and the second limiting sleeve.
Furthermore, the side wall of the main shaft is provided with a plurality of water outlet holes for hydraulic punching.
Furthermore, a push rod is arranged in the drill rod connector, and the push rod is connected with the inner wall of the drill rod connector through a push rod sleeve arranged outside the push rod.
Furthermore, a first compression spring is sleeved on the ejector rod.
Furthermore, a loop bar is arranged in the drill bit connector, a second compression spring is sleeved at one end, close to the drill bit body, of the loop bar, one end of the second compression spring is fixed on the second water pressure pushing sleeve, and the other end of the second compression spring is fixed on the loop bar.
Furthermore, the outer wall of the end head of the sleeve rod close to the drill rod body is a conical surface.
Further, the diameter of the sleeve rod is smaller than that of the main shaft.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses set up the main shaft of taking the rack section in the drilling rod body, the drilling rod body outside sets up the arm claw of taking the gear section, rack and gear mesh mutually, utilize water pressure to promote the main shaft to go forward and move, thereby the rack drives the gear rotation, expandes the arm claw, is used for reaming; simple structure, convenient to use, not fragile.
(2) The main shaft of the utility model is hollow and is provided with a plurality of small water outlet holes, and water can flow out from the water outlet holes on the main shaft by water pressure to carry out hydraulic punching; the hydraulic punching is a drilling hole drilled to a coal seam with a self-spraying capacity by utilizing a drill bit with high-pressure water to release outburst potential and reduce or eliminate outburst danger; the measure of hydraulic pressure relief and permeability increase is that under the shield of rock pillar, after the construction of drilling hole, the medium-high water is adopted to pass through high-efficiency spray head to impact the coal body around the drilling hole, so as to flush out a large amount of coal body and gas, the stress concentration moves to the periphery of the punching hole, so that the pressure relief and permeability increase of the coal body near the punching hole are realized, and the drainage effect is effectively improved
(3) The utility model discloses a main shaft front end and rear end all set up the stop collar, set up compression spring at the rear end and connect water pressure promotion cover and loop bar, and after supplying water, the main shaft moves forward, and the arm claw expandes, and water pressure promotes the cover and reaches the stop collar bottom, and compression spring compression stops to supply water the back, and pressure release, compression spring reset, drive the main shaft and reset to the arm claw is retrieved, need not extra power and resets, controls simply, operates steadily, maintains portably.
(4) The utility model provides a reaming and take out the problem that the sediment operation switches many times of punching, need not to move back the brill and can realize, reduced the step of frequent dismouting drilling rod, very big reduction colliery workman's intensity of labour, improved the efficiency of down deep hole operation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a schematic cross-sectional view of the present invention.
Fig. 4 is a sectional view showing an open state of the arm claw according to the present invention.
Wherein:
the hydraulic drill comprises a drill rod body 1, a drill rod connector 2, a drill bit connector 3, a water pipeline 4, an arm claw 5, a gear section 51, a blade 52, a pin shaft 6, a push rod sleeve 7, a push rod 8, a first compression spring 9, a first limiting sleeve 10, a first water pressure pushing sleeve 11, a pushing plug 12, a main shaft 13, a rack section 131, a water outlet hole 132, a second limiting sleeve 14, a second water pressure pushing sleeve 15, a second compression spring 16 and a loop bar 17.
Detailed Description
For better understanding of the technical solution of the present invention, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present invention, but only the embodiments of the present invention. It should be noted that the description of the positional relationship of the components, such as the component a is located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.
Example 1:
referring to fig. 1-4, fig. 1 is a schematic structural diagram of a drilling, punching and expanding integrated device for a coal mine. As shown in the figures, the drilling, punching and expanding integrated device for the coal mine comprises a drilling rod body 1, a drilling rod connector 2, a drill bit connector 3 and an arm claw 5, wherein one end of the drilling rod body 1 is in threaded connection with the drilling rod connector 2, the other end of the drilling rod body is in threaded connection with the drill bit connector 3, a water pipeline 4 is arranged inside the drilling rod body 1, two symmetrical long cavities are respectively arranged on two sides of the outer wall, the arm claw 5 is arranged in each long cavity, one end, close to the drilling rod connector 2, of the arm claw 5 is rotatably installed on the drilling rod body 1 through a pin shaft 6 and is provided with a gear section 51, and a plurality of groups of blades 52 are arranged outside the other end of the arm claw 5; the water pipeline 4 sequentially penetrates through the drill rod connector 2, the drill rod body 1 and the drill bit connector 3, a water supply port is arranged in a port of the drill rod connector 2 and connected with a water pump, and high-pressure water enters the water pipeline 4 to achieve the purposes of punching and reaming.
A hollow main shaft 13 is arranged in the water pipeline 4 in the drill rod body 1, a first water pressure pushing sleeve 11 is sleeved outside one end, close to the drill rod connector 2, of the main shaft 13, the end of the main shaft is connected with a pushing plug 12, a second water pressure pushing sleeve 15 is sleeved outside the other end of the main shaft 13, the first water pressure pushing sleeve 11 is arranged in a first limiting sleeve 10, and the second water pressure pushing sleeve 15 is arranged in a second limiting sleeve 14; the first limiting sleeve 10 and the second limiting sleeve 14 are fixedly arranged inside the front end and the rear end of the drill rod body 1, the first water pressure pushing sleeve 11 can slide in the first limiting sleeve 10, the second water pressure pushing sleeve 15 can slide in the second limiting sleeve 14, a plurality of sealing elements are arranged between the first water pressure pushing sleeve 11 and the first limiting sleeve 10, and a plurality of sealing elements are arranged between the second water pressure pushing sleeve 15 and the second limiting sleeve 14.
The main shaft 13 is arranged between the two arm claws 5, one end of the main shaft 13 close to the first water pressure pushing sleeve 11 is provided with a section of rack section 131, the rack section 131 is arranged between the gear sections 51 of the arm claws 5, and the arm claws 5 are pushed to be unfolded through the interaction of the rack section 131 and the gear sections 51; the side wall of the main shaft 13 is provided with a plurality of water outlet holes 132 for hydraulic punching.
The drill rod connector 2 is internally provided with a transverse T-shaped ejector rod 8, the ejector rod 8 is connected with the inner wall of the drill rod connector 2 through an ejector rod sleeve 7 arranged outside, and the ejector rod 8 is sleeved with a first compression spring 9.
A sleeve rod 17 is arranged in the drill bit connector 3, the outer wall of the end head of the sleeve rod 17 close to the drill bit body 1 is a conical surface, a second compression spring 16 is sleeved on the end head, one end of the second compression spring 16 is fixed on a second water pressure pushing sleeve 15, and the other end of the second compression spring is fixed on the sleeve rod 17; the diameter of the sleeve rod 17 is smaller than that of the main shaft 13, and when the main shaft 13 is pushed forwards due to water pressure, the end of the sleeve rod 17 extends into the main shaft 13, so that the movement of the main shaft 13 is not influenced.
The push plug 12 is internally provided with a circulation hole penetrating through the main shaft 13, so that the circulation of a water path is not influenced.
The blade 52 is made of hard alloy such as diamond, is anticorrosive and antirust, can enter hard coal, is not easy to damage, and has long service life.
The working principle is as follows:
the drilling rod body is communicated with a water pipeline, water in the pipeline is extracted from a pump station from a water tank, certain water pressure exists, after water is supplied, the water pressure pushing sleeve drives the shaft to forwards push a certain distance, the limiting sleeve limits the moving distance of the water pressure pushing sleeve, the water pressure pushing sleeve cannot forwards push all the time, two arm claws are driven to open by means of gear transmission to expand, and meanwhile, because the vertical surface of the main shaft is communicated, water can flow out of a water outlet hole in the main shaft to conduct hydraulic punching.
Hydraulic punching is the drilling of a coal seam with a self-blowing capability with a drill bit with high pressure water in order to release the outburst potential and reduce or eliminate the outburst hazard. The measure of hydraulic pressure relief and permeability increase is that under the shield of a rock pillar, after a drill hole is constructed, medium and high water is adopted to impact coal around the drill hole through a high-efficiency spray head, a large amount of coal and gas are flushed out, stress is concentrated to move to the periphery of the drill hole, pressure relief and permeability increase of the coal near the drill hole are achieved, and the drainage effect is effectively improved.
When the water supply is stopped, no pressure exists in the drill punching and expanding integrated drill hole, the rectangular compression spring can return to the original state from the compressed state, the shaft is pushed back to the original position, and therefore the arm claws on the two sides are retracted against the gear transmission.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a bore towards and expand integrative device for colliery which characterized in that: the drill rod comprises a drill rod body (1), a drill rod connector (2) and a drill bit connector (3), wherein one end of the drill rod body (1) is connected with the drill rod connector (2), the other end of the drill rod body is connected with the drill bit connector (3), a water pipeline (4) is arranged inside the drill rod body (1), two symmetrical long cavities are respectively arranged on two sides of the outer wall, an arm claw (5) is arranged in each long cavity, one end, close to the drill rod connector (2), of each arm claw (5) is rotatably arranged on the drill rod body (1) through a pin shaft (6) and is provided with a gear section (51), and a plurality of groups of blades (52) are arranged on the outer side of the other end of each arm claw (5); the water pipeline (4) sequentially penetrates through the drill rod connector (2), the drill rod body (1) and the drill bit connector (3), and a water supply port is formed in a port of the drill rod connector (2);
a hollow main shaft (13) is arranged in a water pipeline (4) in the drilling rod body (1), a first water pressure pushing sleeve (11) is sleeved outside one end, close to the drilling rod connector (2), of the main shaft (13), the end of the main shaft is connected with a pushing plug (12), a second water pressure pushing sleeve (15) is sleeved outside the other end of the main shaft (13), the first water pressure pushing sleeve (11) is arranged in a first limiting sleeve (10), and the second water pressure pushing sleeve (15) is arranged in a second limiting sleeve (14); the first limiting sleeve (10) and the second limiting sleeve (14) are fixedly arranged inside the front end and the rear end of the drill rod body (1); the main shaft (13) is arranged between the two arm claws (5), one end of the main shaft (13) close to the first water pressure pushing sleeve (11) is provided with a section of rack section (131), the rack section (131) is arranged between the gear sections (51) of the arm claws (5), and the arm claws (5) are pushed to be unfolded through the interaction of the rack section (131) and the gear sections (51); one end, close to the drill bit connector (3), of the second limiting sleeve (14) is connected with a second compression spring (16), one end of the second compression spring (16) is fixed to the second limiting sleeve (14), and the other end of the second compression spring is fixed to the drill rod body (1).
2. The drilling, punching and expanding integrated device for the coal mine as claimed in claim 1, wherein: the end of the main shaft (13) close to the drill rod connector (2) is connected with the pushing plug (12).
3. The drilling, punching and expanding integrated device for the coal mine as claimed in claim 2, wherein: the pushing plug (12) is internally provided with a circulation hole which runs through the main shaft (13).
4. The drilling, punching and expanding integrated device for the coal mine as claimed in claim 1, wherein: a plurality of sealing elements are arranged between the first water pressure pushing sleeve (11) and the first limiting sleeve (10), and a plurality of sealing elements are arranged between the second water pressure pushing sleeve (15) and the second limiting sleeve (14).
5. The drilling, punching and expanding integrated device for the coal mine as claimed in claim 1, wherein: the side wall of the main shaft (13) is provided with a plurality of water outlet holes (132) for hydraulic punching.
6. The drilling, punching and expanding integrated device for the coal mine as claimed in claim 1, wherein: the drill rod connector is characterized in that a transverse T-shaped ejector rod (8) is arranged in the drill rod connector (2), and the ejector rod (8) is connected with the inner wall of the drill rod connector (2) through an ejector rod sleeve (7) arranged outside.
7. The drilling, punching and expanding integrated device for the coal mine as claimed in claim 6, wherein: the ejector rod (8) is sleeved with a first compression spring (9).
8. The drilling, punching and expanding integrated device for the coal mine as claimed in claim 1, wherein: be equipped with a loop bar (17) in drill bit connector (3), second compression spring (16) is established to the pot head that loop bar (17) are close to the body of drill rod (1), the one end of second compression spring (16) is fixed on second water pressure promotes cover (15), and one end is fixed on loop bar (17).
9. The drilling, punching and expanding integrated device for the coal mine as claimed in claim 8, wherein: the outer wall of the end head of one end of the loop bar (17) close to the drill rod body (1) is a conical surface.
10. The drilling, punching and expanding integrated device for the coal mine as claimed in claim 8, wherein: the diameter of the sleeve rod (17) is smaller than that of the main shaft (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221657485.8U CN217462028U (en) | 2022-06-30 | 2022-06-30 | Drilling, punching and expanding integrated device for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221657485.8U CN217462028U (en) | 2022-06-30 | 2022-06-30 | Drilling, punching and expanding integrated device for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217462028U true CN217462028U (en) | 2022-09-20 |
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ID=83245565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221657485.8U Active CN217462028U (en) | 2022-06-30 | 2022-06-30 | Drilling, punching and expanding integrated device for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217462028U (en) |
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2022
- 2022-06-30 CN CN202221657485.8U patent/CN217462028U/en active Active
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