CN220828231U - Water leakage-proof drill rod sleeve and rock drill - Google Patents
Water leakage-proof drill rod sleeve and rock drill Download PDFInfo
- Publication number
- CN220828231U CN220828231U CN202322761333.3U CN202322761333U CN220828231U CN 220828231 U CN220828231 U CN 220828231U CN 202322761333 U CN202322761333 U CN 202322761333U CN 220828231 U CN220828231 U CN 220828231U
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- China
- Prior art keywords
- drill rod
- piston tube
- drill
- rod sleeve
- tube
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000011435 rock Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004880 explosion Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- 238000010009 beating Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model belongs to the structural field of rock drills, in particular to a water leakage-proof drill rod sleeve and a rock drill, wherein a drill rod is installed in a front end hole of the drill rod sleeve, a drill shank is installed in a rear end hole of the drill rod sleeve, a bolt hole communicated with the front end hole is further formed in the front part of the drill rod sleeve, a leakage-proof device is arranged between the drill rod and the drill shank, the leakage-proof device comprises a piston tube, a rubber gasket and a tube spring, the piston tube is concentrically arranged with the front end hole and the rear end hole of the drill rod sleeve, the piston tube is movably installed in the drill rod sleeve, the middle section of the outer wall of the piston tube is matched and attached to the inner wall of the drill rod sleeve, the rear part of the tube spring is sleeved on the piston tube, the front end face of the tube spring is abutted to the rear end face of a first boss, the rear end face of the tube spring is abutted to the drill rod sleeve, the rubber gasket is connected with the front end of the piston tube and is arranged between the drill rod and the piston tube, and the front end face of the drill rod is provided with a buffer gap, and the rock drill can eliminate hidden danger of water vapor explosion caused by leakage, and the drill bit service life is prolonged, and production efficiency and opening efficiency is improved.
Description
Technical Field
The utility model belongs to the structural field of rock drills, and particularly relates to a water leakage-proof drill rod sleeve and a rock drill.
Background
The rock drill is used for occasions such as rock drilling and molten iron furnace opening, and when the rock drill works, a replaceable drill rod is arranged in a drill rod sleeve connected with a drill rod tail at the front end of the rock drill, working medium is drilled by utilizing high-speed vibration of the drill rod, cooling water is injected from the rock drill and sequentially passes through the drill rod tail, the drill rod sleeve and the drill rod, and is output from the front end of a drill bit, so that the drill bit of the drill rod is cooled, and the good working state of the drill bit of the drill rod is ensured. Because the drilling rod is often required to be replaced, see fig. 3, in order to be convenient for accomplish fast, the front end mounting hole of drilling rod 2 and drill rod cover 1 belongs to clearance fit, for fixed drilling rod 2, still be equipped with horizontal bolt 4 on the drill rod cover in order to strengthen the combination of drilling rod 2 and drill rod cover 1, during operation, the drilling rod needs to take place certain displacement in the axial relative drill rod cover, when cooling water passes through from the drill rod cover, can't avoid spilling from front end hole and bolt hole, this situation is little in the field operation influence, but the rock drill is used for the working place of high temperature environment, if be used for the molten iron to open the furnace, the drill rod cover is located the top work of molten iron fire ditch often, if cooling water drops on the molten iron of thousand more degrees centigrade directly, because the oxygen in the open space is enough to make into water and take place the explosion, cause production incident. Moreover, water leakage can also lead to insufficient water supply of the drill rod head, the cooling effect is reduced, the drill bit is easy to reddening and softening, the service life is reduced, and the service effect is influenced, so that the provision of the water leakage-proof drill rod sleeve is necessary.
Disclosure of utility model
The utility model aims to provide a water leakage-proof drill rod sleeve so as to solve the problems in the prior art.
The technical scheme for achieving the purpose comprises the following steps.
The drill rod sleeve capable of preventing water leakage is characterized in that a drill rod is installed in a front end hole of the drill rod sleeve, a drill shank is installed in a rear end hole of the drill rod sleeve, a bolt hole communicated with the front end hole is further formed in the front portion of the drill rod sleeve, a leakage preventing device is arranged between the drill rod and the drill shank, the leakage preventing device comprises a piston tube, a rubber gasket and a tube spring, the piston tube is arranged concentrically with the front end hole and the rear end hole of the drill rod sleeve, the piston tube is movably installed in the drill rod sleeve, the middle section of the outer wall of the piston tube is matched with the inner wall of the drill rod sleeve, a first boss is arranged on the outer wall of the front end of the piston tube, a limit second boss is arranged on the outer wall of the rear end of the piston tube, the rear end of the tube spring is sleeved on the piston tube, the front end face of the tube spring is abutted against the rear end face of the first boss, the rear end face of the tube spring is abutted against the drill rod sleeve, the outer diameter of the rubber gasket is smaller than the inner diameter of the front end hole, the rubber gasket is connected with the front end of the piston tube and is arranged between the drill rod and the piston tube, the piston tube and the center of the rubber gasket is provided with a water-through tunnel, the diameter of the water through tunnel is consistent with the water through tunnel, when the piston tube is in the center, and the water through tunnel is under the action of the tension of the piston tube, and has a trend of the forward and the piston cushion is pressed against the rear end face of the piston end face.
Further, the inner wall of the drill rod sleeve matched with the middle section of the outer wall of the piston tube is provided with a sealing ring, the inner diameter of the sealing ring is matched with the outer diameter of the piston tube, and the sealing performance of the piston tube and the inner wall of the drill rod sleeve is improved.
Further, the sealing ring is a Style seal.
Further, the rear portion of the rubber gasket is sleeved at the front end of the piston tube, and the rear end face of the rubber gasket abuts against the front end face of the first boss.
Further, the second boss is a detachable check ring arranged on the piston tube, so that the piston tube can be conveniently assembled and disassembled.
Further, the thickness of the rubber cushion ring is 3-6mm, and the outer diameter of the rubber cushion ring is 25-30mm.
The utility model also provides a rock drill adopting the water-leakage-proof drill rod sleeve.
When the rock drill provided with the water leakage-proof drill rod sleeve is used, cooling water sequentially passes through the drill shank, the piston pipe, the rubber gasket and the drill rod, as the rubber gasket (together with the piston pipe) is tightly supported on the rear end face of the drill rod under the tensile force of the pipe spring, no matter the rock drill is in an idle-beating forward-beating reverse-beating state, the drill rod moves forwards or backwards, and the rubber gasket (together with the piston pipe) moves along with the rubber gasket and is tightly supported on the rear end face of the drill rod all the time, so that cooling water cannot leak from the rubber gasket into a gap between the drill rod sleeve and the drill rod, the water leakage-proof function of the drill rod sleeve is realized, hidden danger of water vapor explosion caused by water leakage can be eliminated, a clear observation view is provided for the rock drill rod, no water leakage is ensured, the cooling effect of the drill rod drill bit is avoided, the drill rod is prevented from rapidly reddening and softening, the service life of the drill rod bit is facilitated, and the production and the opening efficiency are improved.
Drawings
FIG. 1 is a schematic view of a water-tight drill pipe sleeve according to an embodiment;
FIG. 2 is a view showing an embodiment of a water-tight drill sleeve in a reverse run state of the rock drill;
Fig. 3 is a schematic view of a conventional drill pipe sleeve.
In the figure, 1. A drill rod sleeve; 2. a drill rod; 3. a drill shank; 4. a plug pin; 5. a piston tube; 5-1, a first boss; 6. a glue gasket; 7. a tube spring; 8. a retainer ring; 9. and (5) a Style seal.
Detailed Description
The present utility model will be specifically described with reference to examples.
Referring to fig. 1 and 2, a rock drill adopting a water-proof drill rod sleeve, the outer diameter of a drill rod 2 is 40mm, the inner diameter of a water-through tunnel in the center of the drill rod 2 is 22mm, the drill rod 2 is detachably arranged in a front end hole of the drill rod sleeve 1, a rear end hole of the drill rod sleeve 1 is fixedly sleeved on a drill shank 3, a bolt 4 is inserted in the front part of the drill rod sleeve 1 to strengthen the drill rod 2, a leakage-proof device is arranged between the drill rod 2 and the drill shank 3, the leakage-proof device comprises a piston tube 5, a rubber gasket 6 and a tube spring 7, the piston tube 5 is concentrically arranged with the front end hole and the rear end hole of the drill rod sleeve 1, the piston tube 5 is movably arranged in the drill rod sleeve 1, the middle section of the outer wall of the piston tube 5 is matched with the inner wall of the drill rod sleeve 1, a stent 9 matched with the outer diameter of the piston tube 5 is arranged at the matched joint part, the sealing performance can be further enhanced, the outer wall of the front end of the piston tube 5 is provided with a first boss 5-1, the outer wall of the rear end of the piston tube 5 is provided with a limiting detachable retainer ring 8, the retainer ring 8 is used for blocking the piston tube 5 from slipping from the front end, the retainer ring 8 is detached, the piston tube can be taken out from the drill rod sleeve, the tube spring 7 is sleeved on the piston tube 5, the front end face of the tube spring 7 is abutted against the rear end face of the first boss 5-1, the rear end face of the tube spring 7 is abutted against the drill rod sleeve 1, the outer diameter of the rubber gasket 6 is 28mm, the rear end of the rubber gasket 6 is sleeved on the front end of the piston tube 5, the rear end face of the rubber gasket 6 is abutted against the front end face of the first boss 5-1, the centers of the piston tube 5 and the rubber gasket 6 are respectively provided with a water-through tunnel of 22mm, when in operation, the piston tube 5 has a forward movement trend under the stretching action of the tube spring 7, the rubber gasket 6 is pressed and abutted against the rear end face of the drill rod 2, a buffer gap of 3mm is arranged between the rear end face of the piston tube 5 and the front end face of the drill shank 3.
When the rock drill adopting the water-leakage-proof drill rod sleeve is used, cooling water flows through the drill rod tail 3, the piston pipe 5 and the rubber cushion ring 6 in sequence and enters the drill rod sleeve 1, as the rubber cushion ring 6 (together with the piston pipe 5) is tightly abutted against the rear end face of the drill rod 2 under the tensile force of the pipe spring 7, no matter the rock drill is in an idle or back-beating state, the drill rod 2 moves forwards or backwards, the rubber cushion ring 6 (together with the piston pipe 5) always moves along and is always abutted against the rear end face of the drill rod 2, so that cooling water cannot leak into a gap between the drill rod sleeve 1 and the drill rod 2 from the rubber cushion ring 6, the water-leakage-proof function of the drill rod sleeve 1 is realized, hidden danger of water vapor explosion caused by water leakage can be eliminated, the cooling effect of the front end (drill rod head) of the drill rod 2 is not guaranteed, the service life of the drill rod head 2 of the rock drill machine is effectively prolonged, and the production cost is reduced.
Claims (7)
1. The drill rod sleeve capable of preventing water leakage is characterized in that a leakage preventing device is arranged between the drill rod and the drill rod tail, the leakage preventing device comprises a piston tube, a rubber gasket and a tube spring, the piston tube is concentrically arranged with the front end hole and the rear end hole of the drill rod sleeve, the piston tube is movably arranged in the drill rod sleeve, the middle section of the outer wall of the piston tube is matched and attached with the inner wall of the drill rod sleeve, a first boss is arranged on the outer wall of the front end of the piston tube, a limit second boss is arranged on the outer wall of the rear end of the piston tube, the rear end of the tube spring is sleeved on the piston tube, the front end face of the tube spring is abutted against the rear end face of the first boss, the rear end face of the tube spring is abutted against the drill rod sleeve, the outer diameter of the rubber gasket is smaller than the inner diameter of the front end hole, the rubber gasket is connected with the front end of the piston tube and is arranged between the drill rod and the piston tube, the centers of the piston tube and the rubber gasket are all provided with water through tunnels, the diameters of the water through tunnels are consistent with the water through the centers, when the piston tube is in operation, the piston tube has a tension trend, and the piston tube is tightly pressed against the rear end face of the piston tube by the piston tube under the action of the spring.
2. The water-tight drill sleeve according to claim 1, wherein a sealing ring is arranged on the inner wall of the drill sleeve matched with the middle section of the outer wall of the piston tube, and the inner diameter of the sealing ring is matched with the outer diameter of the piston tube.
3. The water tight drill sleeve of claim 2, wherein said seal ring is a stoner seal.
4. The water leakage preventing drill rod sleeve according to claim 1, wherein the rear portion of the rubber gasket is sleeved on the piston tube, and the rear end face of the rubber gasket abuts against the front end face of the first boss.
5. The water resistant drill string cover of claim 1, wherein the second boss is a removable collar mounted to the piston tube.
6. The water-tight drill rod sleeve of claim 1, wherein the rubber gasket has a thickness of 3-6mm and an outer diameter of 25-30mm.
7. A rock drill, characterized in that it employs a water-tight drill sleeve according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322761333.3U CN220828231U (en) | 2023-10-16 | 2023-10-16 | Water leakage-proof drill rod sleeve and rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322761333.3U CN220828231U (en) | 2023-10-16 | 2023-10-16 | Water leakage-proof drill rod sleeve and rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220828231U true CN220828231U (en) | 2024-04-23 |
Family
ID=90721756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322761333.3U Active CN220828231U (en) | 2023-10-16 | 2023-10-16 | Water leakage-proof drill rod sleeve and rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220828231U (en) |
-
2023
- 2023-10-16 CN CN202322761333.3U patent/CN220828231U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |