CN210829062U - Anvil valve type hydraulic down-the-hole hammer capable of improving energy utilization rate - Google Patents
Anvil valve type hydraulic down-the-hole hammer capable of improving energy utilization rate Download PDFInfo
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- CN210829062U CN210829062U CN201921375448.6U CN201921375448U CN210829062U CN 210829062 U CN210829062 U CN 210829062U CN 201921375448 U CN201921375448 U CN 201921375448U CN 210829062 U CN210829062 U CN 210829062U
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- anvil
- anvil valve
- hole
- valve
- valve rod
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- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000011435 rock Substances 0.000 abstract description 4
- 238000009527 percussion Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 238000005553 drilling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
An anvil valve type hydraulic down-the-hole hammer capable of improving energy utilization rate comprises an upper joint, an outer pipe, a spline sleeve and a lower joint which are sequentially connected, wherein an anvil valve component is arranged in the lower joint of a hollow structure, the anvil valve component comprises a limiting cap, an anvil valve spring and a guide seat, the limiting cap is fixed at the upper part of the lower joint and is provided with a conical hole, and the guide seat is fixed in the middle of the lower joint; the anvil valve consists of an anvil valve head and an anvil valve rod, the anvil valve head is a cone matched and attached with the tapered hole, the anvil valve rod is provided with a valve rod central hole, the side wall of the anvil valve rod is provided with a liquid passing groove hole communicated with the valve rod central hole, and the lower part of the anvil valve rod is inserted into the guide seat and is in sliding fit with the guide seat; the anvil valve spring is sleeved on the anvil valve rod, and two ends of the anvil valve spring respectively contact and press the anvil valve head and the guide seat. Adopt the utility model discloses can effectively improve the energy utilization and the output percussion power of down-the-hole hammer that surges, can also reduce the long-pending sand dead angle in piston motion district down, be favorable to getting rid of rock cutting long-pending sediment, extension motion sealing pair life-span, alleviate and hinder the card probability.
Description
Technical Field
The utility model relates to a anvil valve formula down-the-hole hammer that surges that is used for geology to creep into construction equipment, especially is applied to the improvement energy utilization in fields such as geology rock core probing, scientific probing or oil and gas exploration.
Background
The hydraulic down-the-hole hammer is an impact load generating device in hydraulic impact rotary drilling, directly drives the punch hammer in the hydraulic hammer to form up-and-down reciprocating motion by utilizing energy in flushing liquid supplied by a slurry pump in the drilling process, and continuously applies impact load with certain frequency to a lower drilling tool, so that the impact rotary drilling is realized. The existing hydraulic down-the-hole hammer can be divided into a positive hydraulic down-the-hole hammer, a negative hydraulic down-the-hole hammer, a jet-type double-acting hydraulic down-the-hole hammer, a jet-suction type double-acting hydraulic down-the-hole hammer and a composite hydraulic down-the-hole hammer according to different action principles, and can be further divided into a conventional hydraulic down-the-hole hammer and a through-type hydraulic down-the-hole hammer according to structural characteristics. The hydraulic down-the-hole hammer has the following defects in the working process: the pressure in the lower cavity is increased due to the high-speed movement of the impact hammer in the impact stroke, and when the impact hammer runs to be close to the stroke end, a water cushion effect which is influenced by the pressure to reduce the speed of the impact end and weaken the impact power exists more or less.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an eliminate or obviously reduce anvil valve formula down-the-hole hammer that surges of improvement energy utilization of water cushion effect.
The problem of the utility model is realized with following technical scheme:
an anvil valve type hydraulic down-the-hole hammer capable of improving energy utilization rate comprises an upper joint, an outer pipe, a spline sleeve and a lower joint which are sequentially connected, wherein an upper cylinder sleeve, an upper piston, a punching hammer, a lower piston and a lower cylinder sleeve are arranged in the outer pipe; the anvil valve consists of an anvil valve head and an anvil valve rod, the anvil valve head is a cone matched and attached with the tapered hole, the anvil valve rod is provided with a valve rod central hole, the side wall of the anvil valve rod is provided with a liquid passing groove hole communicated with the valve rod central hole, and the lower part of the anvil valve rod is inserted into the guide seat and is in sliding fit with the guide seat; the anvil valve spring is sleeved on the anvil valve rod, and two ends of the anvil valve spring respectively contact and press the anvil valve head and the guide seat.
Above-mentioned improve energy utilization's hammering block valve formula down-the-hole hammer that surges, the hammering block valve head is equipped with leads to the liquid groove, leads to liquid groove evenly distributed, leads to the liquid groove and extends to the bottom of hammering block valve head by the middle part of hammering block valve head.
According to the anvil valve type hydraulic down-the-hole hammer capable of improving the energy utilization rate, the anvil valve head is provided with the central through-flow hole communicated with the central hole of the valve rod, and the aperture of the central through-flow hole is larger than or equal to zero and smaller than or equal to the aperture of the central hole of the valve rod.
According to the anvil valve type hydraulic down-the-hole hammer capable of improving the energy utilization rate, the diversion grooves are uniformly distributed on the periphery of the guide seat.
According to the anvil valve type hydraulic down-the-hole hammer capable of improving the energy utilization rate, the guide seat is provided with the anvil valve spring limiting groove, and the lower portion of the anvil valve spring is located in the anvil valve spring limiting groove.
According to the anvil valve type hydraulic down-the-hole hammer capable of improving the energy utilization rate, the liquid passing groove holes are uniformly distributed on the anvil valve rod, the number of the liquid passing groove holes is 2-4, and the positions of the liquid passing groove holes correspond to the positions of the bypass holes of the lower connector.
The utility model discloses improve to solving and reducing down-the-hole hammer water blanket effect problem that surges, set up the hammering block valve module in the lower clutch, the hammering block valve module is equipped with the hammering block valve, and at the back end of strikeing the stroke, hammering block valve top receives high pressure effect compression hammering block valve spring, and the hammering block valve moves down thereupon, opens the inlet on hammering block valve device upper portion, improves the water passing area of centre aisle to effectively reduce cavity of resorption pressure, eliminate or reduce the influence of water blanket effect to the percussion work. When the hammer is lifted, the pressure of the lower piston area is reduced, the anvil valve moves upwards under the action of the anvil valve spring to close or semi-close the water passage, and the hammer is lifted in an accelerating manner. Adopt the utility model discloses can effectively improve the energy utilization and the output percussion power of down-the-hole hammer that surges, simultaneously because hammering block valve during operation upper portion inlet is opened, can also reduce the long-pending sand dead angle in piston motion district down, be favorable to getting rid of rock cutting long-pending sediment, extension motion sealing pair life-span, alleviate and hinder the card probability.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural view of an anvil valve;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a schematic view of an anvil valve configuration with a center through-flow orifice diameter of zero;
fig. 6 is a perspective view of the guide shoe.
The reference numbers in the figures are: 1. the hydraulic control device comprises an upper joint, 2, an outer pipe, 3, an upper nozzle, 4, an upper valve, 5, an upper cylinder sleeve, 6, an upper piston, 7, a punch hammer, 8, a lower piston, 9, a lower cylinder sleeve, 10, a limiting cap, 11, an anvil valve, 11-1, an anvil valve rod, 11-2, a liquid passing groove hole, 11-3, a valve rod central hole, 11-4, an anvil valve head, 11-5, a liquid passing groove, 12, an anvil valve spring, 13, a slip, 14, a guide seat, 15, a spline sleeve, 16, a lower joint, 16-1 and a lower joint bypass hole.
Detailed Description
Referring to fig. 1 and 2, the utility model discloses an upper joint 1, outer tube 2, spline housing 15 and lower clutch 16 that from top to bottom connect gradually, the lower clutch links to each other with comprehensive drill bit or coring tool. The upper joint and the spline sleeve are respectively connected with the outer pipe through threads, the spline sleeve and the lower joint are connected through splines or in a mode to transfer torque, and the slip 13 ensures that the spline sleeve and the lower joint are connected together, cannot be separated and can relatively slide in the axial direction, so that a blank beating preventing space is provided. An upper cylinder sleeve 5 and a lower cylinder sleeve 9 are arranged in the outer pipe, an upper valve 4 is arranged at the upper part in the outer pipe, and a hammer component consisting of an upper piston 6, a hammer 7 and a lower piston 8 is also arranged in the outer pipe, wherein the upper piston is in sliding fit with the upper cylinder sleeve, and the lower piston is in sliding fit with the lower cylinder sleeve 9. The impact hammer component is matched with the upper valve, and performs reciprocating motion with uniform and high frequency in the respective limiting range, and when the impact hammer component moves to the lower limiting range, the impact hammer component generates impact with the lower connecting head and transmits energy to the drill bit in a shock wave mode, so that the rock crushing efficiency of the drill bit is improved. The utility model discloses a reduce the water blanket effect of down-the-hole hammer that surges and set up the hammering block valve subassembly, the hammering block valve subassembly is located hollow structure's lower clutch. The anvil valve assembly includes a stop cap 10, an anvil valve 11, an anvil valve spring 12, and a guide seat 14. The limiting cap is fixed on the upper portion of the lower connector, the lower end of the limiting cap is supported by a step arranged on the lower connector, the upper end of the limiting cap is limited in a mode of elastic check rings or threads and the like, and the limiting cap is provided with a tapered hole. The guide holder is fixed in the middle of the lower joint, the lower part of the guide holder is supported by a step arranged on the lower joint, and the upper part of the guide holder is pre-tightened and limited by an anvil valve spring. The anvil valve spring is sleeved on the anvil valve rod, and two ends of the anvil valve spring respectively contact and press the anvil valve head and the guide seat.
Referring to fig. 2-5, the anvil valve is comprised of an anvil valve stem 11-1 and an anvil valve head 11-4 shaped like a mushroom head. The upper part of the anvil valve head is a cone matched and attached with the conical hole; the anvil valve head is provided with liquid passing grooves 11-5 for rapid liquid discharge, the liquid passing grooves are uniformly distributed and extend from the middle part of the anvil valve head to the lower part of the anvil valve head. The anvil valve head is also provided with a central through-flow hole 11-6 communicated with the central hole of the valve rod, and different water through-flow requirements can be realized by changing the aperture of the central through-flow hole. The aperture of the central through hole is larger than or equal to zero and smaller than or equal to the aperture of the central hole of the valve rod. The diameter of the central through-flow hole of the anvil valve shown in fig. 3 is larger than zero and smaller than the central hole of the valve rod, and the anvil valve with the structure semi-seals the water channel when in a closed state; the anvil valve shown in fig. 5 has a central throughflow bore of zero diameter, i.e. it closes the central throughflow bore, and in the closed state, it closes the water passage. The two structures can be selected according to the working state of the hydraulic hammer. The anvil valve rod is provided with a valve rod center hole 11-3, liquid passing groove holes 11-2 communicated with the valve rod center hole are formed in the side wall of the anvil valve rod and are uniformly distributed on the anvil valve rod, the number of the liquid passing groove holes is 2-4, and the positions of the liquid passing groove holes correspond to the positions of the lower connector bypass holes 16-1 so as to rapidly and smoothly discharge liquid through the flow. The lower part of the anvil valve rod is inserted into the guide seat and is in sliding fit with the guide seat.
Referring to fig. 2 and 6, in order to ensure that liquid flowing down from the anvil valve can not block smoothly, flow guide grooves 14-1 are uniformly distributed on the periphery of the central guide seat. The end part of the guide seat is provided with an anvil valve spring limiting groove 14-2, and the lower part of the anvil valve spring is positioned in the anvil valve spring limiting groove, so that the anvil valve spring is limited on one hand, and the anvil valve spring is convenient to reliably press the guide seat on the other hand.
The working principle of the utility model is as follows: when the hydraulic hammer does not work or the pressure of the lower cavity of the hydraulic hammer is not enough to jack the anvil valve spring, the limiting cap and the anvil valve head form sealing through a conical surface; when the hydraulic hammer works in the latter half of the stroke before impact occurs, working media in the lower cavity of the hydraulic down-the-hole hammer are compressed along with high-speed movement of the impact hammer component, so that the pressure of the lower cavity is increased, the anvil valve component compresses an anvil valve spring to move downwards along the guide seat under the action of high pressure, a channel between the limiting cap and the anvil valve head is opened, the water passing area of the middle channel is quickly increased, partial liquid flows through the central channel, the pressure of the lower cavity is quickly reduced, the influence of water cushion effect on impact power is eliminated or greatly reduced, and the impact power output by the hydraulic hammer is improved. In the hammer lifting process, due to the fact that the pressure of the lower piston area is reduced, the anvil valve moves upwards under the elastic force of the anvil valve spring, the water passing channel is partially or completely sealed, and the hammer lifting is accelerated. When in use, the anvil valve is replaced to change the aperture of the central through-flow hole, so that the pump can adapt to a larger range of pump capacity; the range of stiffness of the anvil valve spring can be changed by replacing the anvil valve spring.
Claims (6)
1. The utility model provides an improve energy utilization's hammering block valve formula down-the-hole hammer that surges, includes the top connection, outer tube, spline housing and the lower clutch that connect gradually, is equipped with cylinder liner, last piston, impact hammer, lower piston and lower cylinder liner in the outer tube, its characterized in that: an anvil valve component is arranged in a lower joint of a hollow structure, and comprises a limiting cap (10), an anvil valve (11), an anvil valve spring (12) and a guide seat (14), wherein the limiting cap is fixed at the upper part of the lower joint and is provided with a tapered hole, and the guide seat is fixed at the middle part of the lower joint; the anvil valve consists of an anvil valve head (11-4) and an anvil valve rod (11-1), the anvil valve head is a cone matched and attached with the conical hole, the anvil valve rod is provided with a valve rod central hole, the side wall of the anvil valve rod is provided with a liquid passing groove hole (11-2) communicated with the valve rod central hole (11-3), and the lower part of the anvil valve rod is inserted into the guide seat and is in sliding fit with the guide seat; the anvil valve spring is sleeved on the anvil valve rod, and two ends of the anvil valve spring respectively contact and press the anvil valve head and the guide seat.
2. The anvil valve type hydraulic down-the-hole hammer for improving energy efficiency according to claim 1, wherein: the anvil valve head is provided with liquid passing grooves (11-5) which are uniformly distributed, and the liquid passing grooves extend from the middle part of the anvil valve head to the bottom of the anvil valve head.
3. The anvil valve type hydraulic down-the-hole hammer for improving energy efficiency according to claim 2, wherein: the anvil valve head is provided with a central through hole (11-6) communicated with the central hole of the valve rod, and the aperture of the central through hole is larger than or equal to zero and smaller than or equal to the aperture of the central hole of the valve rod.
4. An anvil valve type hydraulic down-the-hole hammer for improving energy efficiency according to claim 3, wherein: and diversion trenches (14-1) are uniformly distributed on the periphery of the guide seat.
5. The anvil valve type hydraulic down-the-hole hammer for improving energy efficiency according to claim 4, wherein: the guide seat is provided with an anvil valve spring limiting groove (14-2), and the lower part of the anvil valve spring is positioned in the anvil valve spring limiting groove.
6. An anvil valve type hydraulic down-the-hole hammer for improving energy efficiency according to claim 5, wherein: the liquid passing groove holes are uniformly distributed on the anvil valve rod, the number of the liquid passing groove holes is 2-4, and the positions of the liquid passing groove holes correspond to the positions of the lower joint bypass holes (16-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921375448.6U CN210829062U (en) | 2019-08-22 | 2019-08-22 | Anvil valve type hydraulic down-the-hole hammer capable of improving energy utilization rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921375448.6U CN210829062U (en) | 2019-08-22 | 2019-08-22 | Anvil valve type hydraulic down-the-hole hammer capable of improving energy utilization rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829062U true CN210829062U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921375448.6U Withdrawn - After Issue CN210829062U (en) | 2019-08-22 | 2019-08-22 | Anvil valve type hydraulic down-the-hole hammer capable of improving energy utilization rate |
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| Country | Link |
|---|---|
| CN (1) | CN210829062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529038A (en) * | 2019-08-22 | 2019-12-03 | 中国地质科学院勘探技术研究所 | A kind of anvil valve type hydraulic in-the-hole hammer |
-
2019
- 2019-08-22 CN CN201921375448.6U patent/CN210829062U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529038A (en) * | 2019-08-22 | 2019-12-03 | 中国地质科学院勘探技术研究所 | A kind of anvil valve type hydraulic in-the-hole hammer |
| CN110529038B (en) * | 2019-08-22 | 2024-09-20 | 中国地质科学院勘探技术研究所 | Anvil valve type hydraulic down-the-hole hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200623 Effective date of abandoning: 20240920 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200623 Effective date of abandoning: 20240920 |