CN108104711B - Novel hydraulic rock drill powder discharging and water supplying mechanism - Google Patents
Novel hydraulic rock drill powder discharging and water supplying mechanism Download PDFInfo
- Publication number
- CN108104711B CN108104711B CN201711384374.8A CN201711384374A CN108104711B CN 108104711 B CN108104711 B CN 108104711B CN 201711384374 A CN201711384374 A CN 201711384374A CN 108104711 B CN108104711 B CN 108104711B
- Authority
- CN
- China
- Prior art keywords
- water
- valve body
- powder discharging
- water supply
- pressure water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 202
- 239000000843 powder Substances 0.000 title claims abstract description 58
- 238000007599 discharging Methods 0.000 title claims abstract description 40
- 239000011435 rock Substances 0.000 title claims abstract description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 59
- 229910052757 nitrogen Inorganic materials 0.000 claims description 31
- 239000000428 dust Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 8
- 210000000476 body water Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
Abstract
The invention discloses a novel powder discharging and water supplying mechanism of a hydraulic rock drill, which comprises a handle body, wherein an external powder discharging and water supplying mechanism for supplying powder discharging water is arranged on the handle body, the external powder discharging and water supplying mechanism controls the on and off of the powder discharging water by a water supplying automatic control mechanism, and the water supplying automatic control mechanism is driven by a control valve core by an opening mechanism. The invention realizes the online automatic supply of water by arranging the external powder discharging water supply mechanism, the water supply automatic control mechanism and the control valve core opened mechanism, has no requirement on water quality, solves the problems of adding additives into water and filtering the water, reduces the use of auxiliary equipment, reduces the rock drilling cost, intermittently supplies the powder discharging water and circularly supplies high-pressure water, and can save 50 percent of water.
Description
Technical Field
The invention relates to the technical field of a powder discharging and water supplying function of a hydraulic rock drill, in particular to a novel powder discharging and water supplying mechanism of a hydraulic rock drill, which is used in mining, highway, railway, water conservancy and tunnel construction engineering.
Background
The working principle of the hydraulic rock drill is as follows: the hydraulic rock drill takes high-pressure water as power, the reciprocating motion of a piston is controlled by a distribution flow control valve, and the piston impacts a drill rod and a drill bit to drill rock during the stroke; when the independent rotating mechanism or the piston returns, the drill rod and the drill bit are driven to rotate for a certain angle. The drill rod and the drill bit are enabled to drill round blast holes in the rock by continuous impact and rotation.
The rock drill drives the drill rod and the drill bit to drill the broken rock powder, and water is injected into the round blast hole through the drill rod and the drill bit to punch the rock powder. The hydraulic rock drill technology disclosed in the prior art relates to the fact that the powder discharge is realized by high-pressure water with a return stroke of a piston. The technology has the advantages of single power and few pipelines. The disadvantage is that the high pressure water of the power is utilized, the water quality requirement of the water is very high, the water contains additives, and the water entering the power needs to be filtered. The method for supplying and discharging the powder water wastes a lot of resources and water is required to be continuously added into the power device. Aiming at the phenomenon, through field investigation of the working environment, a novel hydraulic rock drill dust-discharging water supply mechanism with the separation of power water and dust-discharging water is developed.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provide a novel hydraulic rock drill dust water discharging and supplying mechanism for separating power water from dust water discharging, which realizes the synchronism between the supply of the dust water discharging and the work of the hydraulic rock drill, reduces the consumption of water with high water quality and reduces the waste of water resources.
In order to solve the problems, the invention adopts the following technical scheme: the novel powder discharging and water supplying mechanism of hydraulic rock drill includes a handle body, an external powder discharging and water supplying mechanism for supplying powder discharging water is arranged on the handle body, the external powder discharging and water supplying mechanism is controlled by a water supplying automatic control mechanism to turn on and off the powder discharging water, and the water supplying automatic control mechanism is driven by a control valve core by an opening mechanism.
The following is a further optimization of the present invention for the above scheme: the control valve core opened mechanism comprises a rubber tube, the rear end of the rubber tube is fixedly arranged on the handle body and close to the rear end, and the front end of the handle body is coaxially assembled with the rear end of the cylinder body.
Further optimizing: the handle body is provided with a handle body high-pressure water inlet hole for communicating the rubber tube with the water supply automatic control mechanism.
Further optimizing: the front end of the rubber tube is fixedly arranged on one side of the cylinder body and is communicated with a cylinder body empty knife groove formed in the middle of the cylinder body through a cylinder body high-pressure water outlet.
Further optimizing: the cylinder body is internally and coaxially provided with a piston which can provide high-pressure water for a cylinder body high-pressure water outlet in the cylinder body empty knife groove during return motion.
Further optimizing: the automatic water supply control mechanism comprises a valve body coaxially assembled at the rear end of the handle body, and a control valve core for controlling the on and off of the powder discharge water is coaxially assembled in the valve body.
Further optimizing: when the control valve core is in a view position, a high-pressure water cavity between the control valve core and the valve body is formed between the front end surface of the large-diameter part of the control valve core and the valve body.
Further optimizing: the valve body is provided with a plurality of high-pressure water inlets for communicating the high-pressure water cavity between the control valve core and the valve body and the high-pressure water inlet hole of the handle body.
Further optimizing: the rear end of the valve body is coaxially provided with a nitrogen valve body, and the nitrogen valve body is coaxially provided with a nitrogen valve capable of moving back and forth.
Further optimizing: and an elastic pin for limiting the movement of the nitrogen valve is fixedly arranged at the position, close to the front end of the nitrogen valve, of the valve body.
When the valve is not started, external water enters the powder discharging water inlet valve body and the water storage cavity through the water pipe connector, and the front end of the control valve core seals the water outlet of the valve body;
when the invention starts up, high-pressure water in the empty cutter groove of the cylinder body enters a high-pressure water cavity between the control valve core and the valve body through a rubber pipe through a high-pressure water outlet of the cylinder body to overcome the pressure of nitrogen to push the control valve core to move backwards, at the moment, the powder discharging water enters a water outlet of the valve body and then enters a water outlet needle, and water is injected into a blast hole through a drill rod center hole communicated with the water outlet needle and a water discharging hole on a drill bit to flush rock powder;
when the hydraulic rock drill stops working, the high-pressure water pressure at the empty cutter groove of the cylinder body is reduced to zero, the valve core is controlled to move under the action of nitrogen to cut off the water flow channel to stop water supply, in the normal working of the hydraulic rock drill, the water pressure in the empty cutter groove of the cylinder body is circulated at high and low pressures, and correspondingly, the valve core is correspondingly controlled to be opened and closed to synchronously circulate, so that intermittent circulation supply of the powder discharge water, namely, water supply during return stroke of the piston is realized, and water supply is not realized during the stroke.
The invention realizes the online automatic supply of water by arranging the external powder discharging water supply mechanism, the water supply automatic control mechanism and the control valve core opened mechanism, has no requirement on water quality, solves the problems of adding additives into water and filtering the water, reduces the use of auxiliary equipment, reduces the rock drilling cost, intermittently supplies the powder discharging water and circularly supplies high-pressure water, and can save 50 percent of water.
The invention is further described below with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic view of the structure of the present invention in an embodiment;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
fig. 3 is a schematic structural view of an external powder discharge water supply mechanism in an embodiment of the invention.
In the figure: 1-plugs; 2-nitrogen valve body; a 3-O-ring; 4-nitrogen valve; 5-elastic pins; 6-a valve body; 7-a gasket; 8-a sealing ring; 9-sealing sleeve; 10-a water outlet needle; 11-a cylinder; 12-a control valve core; 13-a handle body; 14-a water pipe joint; 15-clamping rings; a 16-O-ring; 17-a water sealing sleeve; 18, rubber tube; 19-a piston; 20-powder discharging water enters the inlet of the valve body; 21-a cylinder body empty cutter groove; 22-a water pipe joint center hole; 23-a water storage cavity; 24-high-pressure water inlet hole of the handle body; 25-cylinder high-pressure water outlet; 26-external powder drainage enters a water inlet hole of the handle body; 27-high pressure water enters the valve body inlet; 28-a high-pressure water cavity between the control valve core and the valve body; 29-nitrogen chambers; 30-annular protrusions; 31-valve body water outlet.
Detailed Description
As shown in fig. 1 to 3, an embodiment of a novel hydraulic rock drill powder discharge water supply mechanism comprises a handle body 13, wherein an external powder discharge water supply mechanism for supplying powder discharge water is arranged on the handle body 13, the external powder discharge water supply mechanism is controlled by a water supply automatic control mechanism to turn on and off the powder discharge water, and the water supply automatic control mechanism is driven by a control valve core by an opening mechanism.
The control valve core opened mechanism comprises a rubber tube 18, the rear end of which is fixedly arranged on the handle body 13 and close to the rear end, and the front end of the handle body 13 is coaxially assembled with the rear end of the cylinder body 11.
The handle body 13 is provided with a handle body high-pressure water inlet 24 for communicating the rubber tube 18 with the water supply automatic control mechanism.
The front end of the rubber tube 18 is fixedly arranged on one side of the cylinder body 11 and is communicated with a cylinder body empty knife groove 21 formed in the middle of the cylinder body 11 through a cylinder body high-pressure water outlet 25.
The cylinder 11 is coaxially provided with a piston 19 which can supply high-pressure water to a cylinder high-pressure water outlet 25 in the cylinder hollow 21 during return movement.
The piston 19 is provided with an annular projection 30.
When the piston 19 moves in a return mode, high-pressure water pushing the piston to move in the return mode is supplied into the cylinder body empty knife groove 21, the high-pressure water enters the rubber tube 18 through the cylinder body high-pressure water outlet 25, and the rubber tube 18 conveys the high-pressure water to the handle body high-pressure water inlet 24.
The automatic water supply control mechanism comprises a valve body 6 coaxially assembled at the rear end of a handle body 13, and a control valve core 12 for controlling the on and off of the powder discharge water is coaxially assembled in the valve body 6.
The control valve core 12 forms a high-pressure water cavity 28 between the control valve core and the valve body between the front end surface of the large-diameter part and the valve body 6 when the control valve core is at the position of view.
The valve body 6 is provided with a plurality of high-pressure water inlets 27 for communicating the high-pressure water cavity 28 between the control valve core and the valve body and the handle high-pressure water inlet 24.
The high-pressure water in the handle high-pressure water inlet hole 24 enters the high-pressure water cavity 28 between the control valve core and the valve body through the high-pressure water inlet 27.
The nitrogen valve body 2 is coaxially arranged at the rear end of the valve body 6, the nitrogen valve 4 capable of moving back and forth is coaxially arranged in the nitrogen valve body 2, and the O-shaped ring 3 is coaxially arranged at a position, close to the rear end, on the nitrogen valve 4.
An elastic pin 5 for limiting the movement of the nitrogen valve 4 is fixedly arranged at the position of the valve body 6, which is close to the front end of the nitrogen valve body 2.
The control valve element 12 forms a nitrogen chamber 29 between its rear end face and the front end face of the nitrogen valve body 2 in the position shown in the drawing.
The rear end of the nitrogen valve body 2 is coaxially provided with a plug 1.
When the plug 1 is taken down to charge nitrogen, the nitrogen valve 4 moves rightwards under the action of nitrogen pressure, the nitrogen enters the nitrogen cavity 29 of the valve body 6, and the control valve core 12 is pushed to move rightwards to block the water outlet at the front end of the valve body 6.
A sealing gasket 7 is arranged between the rear end face of the handle body 13 and the front end face of the valve body 6.
A sealing ring 8 is arranged between the position, close to the handle high-pressure water inlet hole 24, of the handle body 13 and the valve body 6.
The external powder discharging and water supplying mechanism comprises a water pipe joint 14 arranged on one side of the handle body 13, and a water pipe joint center hole 22 is formed in the water pipe joint 14.
The clamping ring 15, the O-shaped ring 16 and the water sealing sleeve 17 are respectively arranged between the water pipe joint 14 and the handle body 13 along the flow direction of the external powder drainage water injection water pipe joint central hole 22.
The handle body 13 is provided with a water inlet hole 26 for communicating the water pipe joint central hole 22 with external powder discharging water entering the valve body inlet 20, and the powder discharging water entering the valve body inlet 20 is arranged at a position close to the front end of the valve body 6.
The piston 19 is internally and coaxially provided with a water outlet needle 10, and the rear end of the water outlet needle 10 extends to the position where the powder discharge water enters the valve body inlet 20 and is communicated with the powder discharge water entering the valve body inlet 20.
A sealing sleeve 9 is coaxially arranged between the position, close to the rear end, of the water outlet needle 10 and the valve body 6.
A water storage cavity 23 is formed between the position of the outer circumference of the sealing sleeve 9 near the front end, the position of the outer circumference of the valve body 6 near the front end and the handle body 13.
The inlet 20 of the powder discharge water inlet valve body is provided with a plurality of powder discharge water inlets, and the powder discharge water inlets are respectively communicated with the water inlet holes 26 of the external powder discharge water inlet handle body through the water storage cavities 23.
The front end of the valve body 6 is provided with a valve body water outlet 31 communicated with the water outlet needle 10.
When the invention is not started, external water enters the powder discharging water inlet 20 and the water storage cavity 23 of the valve body through the water pipe connector 14, and the front end of the valve core 12 is controlled to seal the water outlet 31 of the valve body;
when the invention starts up, high-pressure water in the cylinder body empty knife groove 21 enters a high-pressure water cavity 28 between the control valve core and the valve body through a rubber pipe 18 through a cylinder body high-pressure water outlet 25 to overcome the pressure of nitrogen to push the control valve core 12 to move backwards, at the moment, the powder discharging water enters a valve body water outlet 31 and then enters the water outlet needle 10, and water is injected into a blast hole through a drill rod central hole communicated with the water outlet needle 10 and a water discharging hole on a drill bit to flush rock powder;
when the hydraulic rock drill stops working, the high-pressure water pressure at the cylinder body idle groove 21 is reduced to zero, the valve core 12 is controlled to move under the action of nitrogen to cut off the water flow channel to stop water supply, the hydraulic pressure in the cylinder body idle groove 21 is circulated at high and low pressure in the normal working process of the hydraulic rock drill, and correspondingly, the valve core 12 is correspondingly controlled to be opened and closed in a synchronous circulation mode, so that intermittent and circular supply of the powder discharge water, namely, water supply during return stroke of a piston and no water supply during stroke are realized.
The invention realizes the online automatic supply of water by arranging the external powder discharging water supply mechanism, the water supply automatic control mechanism and the control valve core opened mechanism, has no requirement on water quality, solves the problems of adding additives into water and filtering the water, reduces the use of auxiliary equipment, reduces the rock drilling cost, intermittently supplies the powder discharging water and circularly supplies high-pressure water, and can save 50 percent of water.
Claims (3)
1. Novel hydraulic rock drill arranges powder water supply mechanism, including handle body (13), its characterized in that: an external powder discharging water supply mechanism for supplying powder discharging water is arranged on the handle body (13), the external powder discharging water supply mechanism controls the on and off of the powder discharging water by a water supply automatic control mechanism, and the water supply automatic control mechanism is driven by a control valve core by an opening mechanism;
the control valve core opened mechanism comprises a rubber tube (18) with the rear end fixedly arranged on the handle body (13) and close to the rear end, and the front end of the handle body (13) is coaxially assembled with the rear end of the cylinder body (11);
a handle body high-pressure water inlet hole (24) for communicating the rubber tube (18) with the water supply automatic control mechanism is formed in the handle body (13);
the front end of the rubber tube (18) is fixedly arranged on one side of the cylinder body (11) and is communicated with a cylinder body empty knife groove (21) formed in the middle of the cylinder body (11) through a cylinder body high-pressure water outlet (25);
a piston (19) which can supply high-pressure water to a cylinder high-pressure water outlet (25) in the cylinder empty knife groove (21) during return motion is coaxially arranged in the cylinder (11);
the automatic water supply control mechanism comprises a valve body (6) coaxially assembled at the rear end of the handle body (13), and a control valve core (12) for controlling the on-off of the powder discharge water is coaxially assembled in the valve body (6);
a high-pressure water cavity (28) between the control valve core and the valve body is formed between the front end surface of the large-diameter part of the control valve core (12) and the valve body (6);
the valve body (6) is provided with a plurality of high-pressure water inlets (27) for communicating the high-pressure water cavity (28) between the control valve core and the valve body and the handle high-pressure water inlet holes (24).
2. The novel hydraulic rock drill dust discharge water supply mechanism according to claim 1, wherein: the rear end of the valve body (6) is coaxially provided with a nitrogen valve body (2), and a nitrogen valve (4) capable of moving back and forth is coaxially arranged in the nitrogen valve body (2).
3. The novel hydraulic rock drill dust discharge water supply mechanism according to claim 2, wherein: an elastic pin (5) used for limiting the movement of the nitrogen valve (4) is fixedly arranged at the position of the valve body (6) close to the front end of the nitrogen valve body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384374.8A CN108104711B (en) | 2017-12-20 | 2017-12-20 | Novel hydraulic rock drill powder discharging and water supplying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384374.8A CN108104711B (en) | 2017-12-20 | 2017-12-20 | Novel hydraulic rock drill powder discharging and water supplying mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108104711A CN108104711A (en) | 2018-06-01 |
| CN108104711B true CN108104711B (en) | 2023-11-24 |
Family
ID=62210484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711384374.8A Active CN108104711B (en) | 2017-12-20 | 2017-12-20 | Novel hydraulic rock drill powder discharging and water supplying mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108104711B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB572448A (en) * | 1942-10-20 | 1945-10-09 | Gustav Albert Bergman | Improvements in or relating to rock drilling machines |
| CN2310158Y (en) * | 1997-12-31 | 1999-03-10 | 洛阳风动工具厂 | Internal rotary rod type internal combustion rock drill |
| CN104358514A (en) * | 2014-09-24 | 2015-02-18 | 中煤科工集团西安研究院有限公司 | Underground coal mine near horizontal directional long drilling hole pressure control drilling system and method |
| CN205743899U (en) * | 2016-05-25 | 2016-11-30 | 阿特拉斯·科普柯（沈阳）建筑矿山设备有限公司 | A kind of air drill and water flushing mechanism thereof |
| CN106195332A (en) * | 2016-08-30 | 2016-12-07 | 河南铁福来装备制造股份有限公司 | A kind of hydraulic reaming makes the unidirectional filtering type in cave from row's powder high-low pressure current switching valve |
| CN206769855U (en) * | 2016-11-23 | 2017-12-19 | 曾小吕 | A kind of high pressure draught clears up aggregate chips formula rock drill |
| CN207620703U (en) * | 2017-12-20 | 2018-07-17 | 山东天瑞重工有限公司 | A kind of novel hydraulic drill row's powder water feed mechanism |
-
2017
- 2017-12-20 CN CN201711384374.8A patent/CN108104711B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB572448A (en) * | 1942-10-20 | 1945-10-09 | Gustav Albert Bergman | Improvements in or relating to rock drilling machines |
| CN2310158Y (en) * | 1997-12-31 | 1999-03-10 | 洛阳风动工具厂 | Internal rotary rod type internal combustion rock drill |
| CN104358514A (en) * | 2014-09-24 | 2015-02-18 | 中煤科工集团西安研究院有限公司 | Underground coal mine near horizontal directional long drilling hole pressure control drilling system and method |
| CN205743899U (en) * | 2016-05-25 | 2016-11-30 | 阿特拉斯·科普柯（沈阳）建筑矿山设备有限公司 | A kind of air drill and water flushing mechanism thereof |
| CN106195332A (en) * | 2016-08-30 | 2016-12-07 | 河南铁福来装备制造股份有限公司 | A kind of hydraulic reaming makes the unidirectional filtering type in cave from row's powder high-low pressure current switching valve |
| CN206769855U (en) * | 2016-11-23 | 2017-12-19 | 曾小吕 | A kind of high pressure draught clears up aggregate chips formula rock drill |
| CN207620703U (en) * | 2017-12-20 | 2018-07-17 | 山东天瑞重工有限公司 | A kind of novel hydraulic drill row's powder water feed mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 支腿式水压凿岩机的探讨与优化;赖邦钧;凿岩机械气动工具;无(第04期);41-47 * |
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| Publication number | Publication date |
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| CN108104711A (en) | 2018-06-01 |
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