CN203347678U - Electro-hydraulic pulse type rock drill - Google Patents
Electro-hydraulic pulse type rock drill Download PDFInfo
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- CN203347678U CN203347678U CN 201320412271 CN201320412271U CN203347678U CN 203347678 U CN203347678 U CN 203347678U CN 201320412271 CN201320412271 CN 201320412271 CN 201320412271 U CN201320412271 U CN 201320412271U CN 203347678 U CN203347678 U CN 203347678U
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Abstract
The utility model relates to an electro-hydraulic pulse type rock drill. The technical scheme of the electro-hydraulic pulse type rock drill is that the electro-hydraulic pulse type rock drill comprises a working cylinder (4), a casing (5) and a piston (3). The piston (3) with a ring-shaped groove is movably arranged inside the working cylinder (4), the upper portion and the lower portion of the cylinder body of the working cylinder (4) are provided with an outer-ring-shaped boss respectively, a positive electrode (6) and a negative electrode (7) which has the same axis are symmetrically arranged inside the semi-ellipse concave spherical surface of the working cylinder, the axis of the positive electrode (6) and the negative electrode (7) horizontally penetrates the focal point of the semi-ellipse concave spherical surface, a drill rod with a cone top end is coaxially arranged at bottom end of the working cylinder (4), the casing (5) is movably arranged outside the working cylinder (4), and the inner walls of the two ends of the casing (5) are provided with an inner-ring-shaped boss respectively, and 4-8 springs (2) are evenly arranged between the outer-ring-shaped bosses of the working cylinder (4) and the inner-ring-shaped bosses of the casing (5). The electric-hydraulic pulse type rock drill has the advantages of being simple in structure, high in energy utilization rate, safe, reliable, pollution-free, flexible in movement, easy and convenient to use and maintain, good in rock crushing effect and applicable to secondary crushing of large rock.
Description
Technical field
The utility model belongs to the rock drill technical field, especially relates to a kind of electro-hydraulic impulse formula rock drill.
Technical background
The rock drilling lithotripsy apparatus is widely applied in underground, mining industry, metallurgical engineering and building trade, and rock drilling rubble mode is mainly to use explosive device and hydraulic breaking hammer at present." catalase product " (CN 2011.80017664.3) technology, disclose a kind of device that uses propellant to be convenient to secondary catalase, and this device can be realized the large-size rock broken, has improved safety; " a kind of novel vibration hammer " (CN 201210368533.6) technology, reduced the power requirement of motor by single eccentric wheel only is set as the method for the core that shakes, the utilization rate that improved energy has been widened range of application; " a kind of liquid-combustion associating quartering hammer " (CN 201110280418.9) disclose a kind of cylinder of diesel engine that hydraulic cavities and similar two-stroke single cylinder are set on hammer body, and this device has been simplified the process of power conversion, has improved capacity usage ratio.Though above-mentioned various rock drilling lithotripsy apparatus has certain effect to the crushing effect that improves rock with improving on energy utilization rate, but still exists following problem:
(1) poor stability of explosive device, control difficulty and environment pollution are large;
(2) the hydraulic breaking hammer impact energy is little, and the conversion process of energy complexity causes energy loss large, and the hydraulic crushing device that the diesel engine of particularly take is power has produced severe contamination when consuming ample resources;
(3) rock drilling lithotrity effect and efficiency still are difficult to meet present industrial production and Facilities Construction demand, particularly to the second-time breakage weak effect of large scale rock;
(4) device structure complexity, mobile, operation and maintenance is more difficult, is difficult to meet the requirement of different working conditions.
Summary of the invention
The utility model is intended to overcome the defect of prior art, purpose be to provide a kind of simple in structure, energy utilization rate is high, safe and reliable, pollution-free, mobile flexibly, use and maintenance is easy, effective and be applicable to the electro-hydraulic impulse formula rock drill of large scale rock second-time breakage to catalase.
For achieving the above object, the technical solution adopted in the utility model is: this device comprises working cylinder, housing, piston, spring and end cap.Piston is housed in working cylinder actively, and working cylinder is equipped with housing outward actively, and end cap is fixedly mounted on the openend of working cylinder.
Shape and the structure of working cylinder are: the integral body that working cylinder is following three sections formations be followed successively by cylinder body section, frustum of a cone section and drill steel section, the cylinder body section of working cylinder, frustum of a cone section and drill steel section coaxial line.
The cylinder body section is hollow cylinder, and the length of cylinder body section is L, apart from 0.2 ~ 0.3L place of cylinder body section upper end with on the face of cylinder at 0.3 ~ 0.4L place of cylinder body section lower end, is respectively equipped with outer ring boss, and two outer ring boss shapes are identical and with working cylinder, be all an integral body.
Frustum of a cone section is hollow truncated cone-shaped, the inner wall shape of open circles frustum is the semiellipse concave spherical surface, a positive electrode and a negative electrode are housed in the semiellipse concave spherical surface symmetrically, positive electrode and negative electrode coaxial line, this axis horizontal ground is through the focus of semiellipse concave spherical surface, and the distance between positive electrode tip and negative electrode tip is 15 ~ 45
mm, the end of positive electrode is concordant with open circles frustum external surface with the end of negative electrode.The positive electrode end is connected with the positive pole that power supply transforms controller, and the negative electrode end is connected with the negative pole that power supply transforms controller.
The main part of drill steel is cylinder, and cylindrical diameter is less than the minor diameter of open circles frustum, and the end of drill steel is cone.
Shape and the structure of piston are: piston is cylinder, and the external diameter of piston is identical with the internal diameter nominal size of working cylinder cylinder body, and the length of piston is L
1, apart from 0.2 ~ 0.5L of piston lower end
1place is provided with cannelure.
Housing is bolted into hollow cylinder by two semi-hollow cylinders, and two cylindrical shape and size of semi-hollow are identical.The two ends of inner walls are respectively equipped with interior annular boss, and the internal diameter of the interior annular boss of housing is than the external diameter of working cylinder cylinder body large 1 ~ 5
mm, the diameter of inner walls is than the outer ring boss diameter of working cylinder large 1 ~ 5
mm, between the outer ring boss of the interior annular boss of housing and working cylinder, be provided with equably 4 ~ 8 springs.
Described working cylinder, housing, piston and end cap coaxial line.
The diameter of described positive electrode is 5 ~ 22
mm, end shape is cone, cone angle is 25 ~ 45o; The geomery of negative electrode is identical with positive electrode.
The cannelure degree of depth of described piston is 5 ~ 20
mm,width is 10 ~ 60
mm.
Described end cap center is provided with through hole, and through-hole diameter and working cylinder (4) inner diameter is than being 1:(2 ~ 4).
The output current that described power supply transforms controller is high-voltage pulse current, and output voltage is 25 ~ 90
kV, pulse frequency is 80 ~ 150
hz, the monocycle impulse discharge period is 1 * 10
-3~ 3 * 10
-3 s; The input voltage that power supply transforms controller is 220
vor 380
v.
Working cycles of the present utility model is divided into two stages, first stage, to be positive electrode and negative electrode sparked in the cavity that semiellipse concave spherical surface and the pistons end of working cylinder open circles frustum forms, excite the liquid medium in cavity to produce electro-hydraulic impulse, now in cavity, there is huge energy and high pressure, this pressure promotes piston and moves upward rapidly along the working cylinder inwall, with drill steel be that holistic working cylinder moves downward fast under the recoil strength effect, complete the impact to rock; Second stage is idle stroke, and piston moves downward gets back to original position.Two stage reciprocation cycle, realize the fragmentation to rock.
Owing to adopting technique scheme, compared to the prior art the utility model, has following good effect:
1) power of the utility model rock drilling rubble is provided by the electro-hydraulic impulse of positive electrode and negative electrode Pulsed Discharge, because discharge time is short, transient energy is large, and the cavity internal pressure that the semiellipse concave spherical surface of piston and open circles frustum forms rises sharply to 1500 ~ 2500
mPatherefore, to the impact force of rock is large, the rock drilling lithotrity effect is good, environmentally safe and safe and reliable.
2) switch controller of power supply is by common 220
vor 380
valternating current is converted into high-voltage pulse current, controls positive electrode and negative electrode pulsed discharge, the drill steel that makes device to the frequency of impact of rock reach 200 ~ 900 times/
min,thereby obviously improved the rock drilling calculifragous efficiency, be easy to realize the control to device by regulating switch controller of power supply.
3) drill steel in the utility model and working cylinder are an integral body, the huge recoil strength of the energy promotion piston movement of electro-hydraulic impulse can be directly passed to the drill steel of working cylinder lower end, has simplified the structure of device, flexibly mobile, operation and maintenance is convenient, has also reduced the loss of energy; In addition, positive electrode and negative electrode axis are crossed the semiellipse concave spherical surface focus of open circles frustum, can take full advantage of the Mohaupt effect of oblong fovea sphere, have improved capacity usage ratio, have also increased the impact force of drill steel, can carry out fragmentation and second-time breakage to the rock of large volume.
4) piston of the present utility model is provided with cannelure, piston is divided into to two sections, the piston hypomere is isolated from the outside the liquid medium in the cavity of piston and the formation of semiellipse concave spherical surface, avoided energy loss and liquid medium excessive loss, also avoided surface tension of liquid to hinder piston and moved upward.
5) end cap of the present utility model center is provided with through hole, has guaranteed that the outer air pressure of piston is consistent with working cylinder outward, avoids the too high obstruction piston movement of outer air pressure of piston, also avoids piston to overflow working cylinder.The spring of the utility model setting can impel idle stroke working cylinder and drill steel returning quickly, is convenient to form continuous pulse shock power, has also reduced the vibration of housing simultaneously.
Therefore, the utlity model has simple in structure, energy utilization rate is high, safe and reliable, pollution-free, mobile flexibly, use and maintenance is easy, effective and be applicable to the characteristics of large scale rock second-time breakage to catalase.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
The A-A generalized section that Fig. 2 is Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model being further described, is not the restriction to its protection domain.
A kind of electro-hydraulic impulse formula rock drill.This device as depicted in figs. 1 and 2, comprises working cylinder 4, housing 5, piston 3, spring 2 and end cap 1.Piston 3 is housed the internal activity of working cylinder 4, housing 5 is housed the external activity of working cylinder 4, end cap 1 is fixedly mounted on the openend of working cylinder 4.
The shape of working cylinder 4 and the structure as shown in Figure 1: the integral body that working cylinder 4 is following three sections formations be followed successively by cylinder body section, frustum of a cone section and drill steel section, the cylinder body section of working cylinder 4, frustum of a cone section and drill steel section coaxial line.
The cylinder body section is hollow cylinder, and the length of cylinder body section is L, apart from 0.2 ~ 0.3L place of cylinder body section upper end with on the face of cylinder at 0.3 ~ 0.4L place of cylinder body section lower end, is respectively equipped with outer ring boss, and two outer ring boss shapes are identical and with working cylinder 4, be all an integral body.
Frustum of a cone section is hollow truncated cone-shaped, and the inner wall shape of open circles frustum is the semiellipse concave spherical surface.The semiellipse concave spherical surface of open circles frustum is equipped with a positive electrode 6 and a negative electrode 7 symmetrically, positive electrode 6 and negative electrode 7 coaxial lines, and this axis horizontal ground is through the focus of semiellipse concave spherical surface, and the distance between positive electrode 6 tops and negative electrode 7 tops is 15 ~ 30
mm, the end of positive electrode 6 is concordant with open circles frustum external surface with the end of negative electrode 7.Positive electrode 6 ends are connected with the positive pole that power supply transforms controller 8, and negative electrode 7 ends are connected with the negative pole that power supply transforms controller 8.
The main part of drill steel is cylinder, and cylindrical diameter is less than the minor diameter of open circles frustum, and the end of drill steel is cone.The shape of piston 3 and the structure as shown in Figure 1: piston 3 is cylinder, and the external diameter of piston 3 is identical with the internal diameter nominal size of working cylinder 4 cylinder bodies, and the length of piston 3 is L
1, apart from 0.2 ~ 0.5L of piston 3 lower ends
1place is provided with cannelure.
As depicted in figs. 1 and 2, described working cylinder 4, housing 5, piston 3 and end cap 1 are coaxially set.
As shown in Figure 1, its diameter is 5 ~ 15 to described positive electrode 6
mm, end shape is cone, cone angle is 25 ~ 30o; The geomery of negative electrode 7 is identical with positive electrode 6.
As shown in Figure 1, the cannelure degree of depth is 5 ~ 15 to described piston 3
mm,width is 10 ~ 35
mm.
As shown in Figure 1, center is provided with through hole to described end cap 1, and through-hole diameter is 1:(2 ~ 3 with working cylinder 4 inner diameters ratios).
The output current that described power supply transforms controller 8 is high-voltage pulse current, and output voltage is 25 ~ 60
kV, pulse frequency is 80 ~ 120
hz, the monocycle impulse discharge period is 1 * 10
-3~ 2 * 10
-3 s; The input voltage that power supply transforms controller 8 is 220
v.
A kind of electro-hydraulic impulse formula rock drill.This device is except following technical data, and all the other are with embodiment 1.
Distance between positive electrode 6 tops and negative electrode 7 tops is 25 ~ 45
mm.
The diameter of described positive electrode 6 is 15 ~ 22
mm, end shape is cone, cone angle is 30 ~ 45o; The geomery of negative electrode 7 is identical with positive electrode 6.
The cannelure degree of depth of described piston 3 is 10 ~ 20
mm,width is 35 ~ 60
mm.
Described end cap 1 center is provided with through hole, and through-hole diameter is 1:(3 ~ 4 with working cylinder 4 inner diameters ratios).
The output current that described power supply transforms controller 8 is high-voltage pulse current, and output voltage is 60 ~ 90
kV, pulse frequency is 120 ~ 150
hz, the monocycle impulse discharge period is 2 * 10
-3~ 3 * 10
-3 s; The input voltage that power supply transforms controller 8 is 380
v.
The working cycles of this specific embodiment is divided into two stages, in the cavity that first stage, to be positive electrode 6 and negative electrode 7 formed in the end of the semiellipse concave spherical surface of working cylinder 4 and piston 3, spark, excite the liquid medium in cavity to produce electro-hydraulic impulse, now in cavity, there is huge energy and high pressure, this pressure promotion piston 3 moves upward rapidly along the inwall of working cylinder 4, with drill steel be that holistic working cylinder 4 moves downward fast under the recoil strength effect, complete the impact to rock; Second stage is idle stroke, and piston 3 moves downward gets back to original position.Two stage reciprocation cycle, realize the fragmentation to rock.
Owing to adopting technique scheme, compared to the prior art this specific embodiment, has following good effect:
1) power of this specific embodiment rock drilling rubble is provided by the electro-hydraulic impulse of positive electrode 6 and negative electrode 7 Pulsed Discharge, and because discharge time is short, transient energy is large, and piston 3 rises sharply to 1500 ~ 2500 with the cavity internal pressure that the semiellipse concave spherical surface forms
mPatherefore, to the impact force of rock is large, the rock drilling lithotrity effect is good, environmentally safe and safe and reliable.
2) switch controller of power supply 8 is by 220
vor 380
valternating current is converted into high-voltage pulse current, controls positive electrode 6 and negative electrode 7 pulsed discharges, the drill steel that makes device to the frequency of impact of rock reach 200 ~ 900 times/
min,thereby obviously improved the rock drilling calculifragous efficiency, be easy to realize the control to device by regulating switch controller of power supply 8.
3) drill steel in this specific embodiment and working cylinder 4 are an integral body, the huge recoil strength of energy promotion piston 3 motions of electro-hydraulic impulse can be directly passed to the drill steel of working cylinder 4 lower ends, has simplified the structure of device, flexibly mobile, operation and maintenance is convenient, has also reduced the loss of energy; In addition, positive electrode 6 and the more than half oblong fovea sphere of negative electrode 7 axis focus, can take full advantage of the Mohaupt effect of oblong fovea sphere, improved capacity usage ratio, also increased the impact force of drill steel, can carry out fragmentation and second-time breakage to the rock of large volume.
4) piston 3 of this specific embodiment is provided with cannelure, piston 3 is divided into to two sections, liquid medium in the cavity that piston 3 hypomeres form piston 3 and semiellipse concave spherical surface is isolated from the outside, avoided energy loss and liquid medium excessive loss, also avoided surface tension of liquid to hinder piston 3 and moved upward.
5) end cap 1 center of this specific embodiment is provided with through hole, has guaranteed that the outer air pressure of piston 3 is outer consistent with working cylinder 4, avoids too high obstruction piston 3 motions of outer air pressure of piston 3, also avoids piston 3 to overflow working cylinder 4.The spring 2 of this specific embodiment setting can impel idle stroke working cylinder 4 and drill steel returning quickly thereof, is convenient to form continuous pulse shock power, has also reduced the vibration of housing 5 simultaneously.
Therefore, this specific embodiment have simple in structure, energy utilization rate is high, safe and reliable, pollution-free, mobile flexibly, use and maintenance is easy, effective and be applicable to the characteristics of large scale rock second-time breakage to catalase.
Claims (5)
1. an electro-hydraulic impulse formula rock drill, is characterized in that this device comprises working cylinder (4), housing (5), piston (3), spring (2) and end cap (1); Piston (3) is housed in working cylinder (4) actively, and working cylinder (4) is outer is equipped with housing (5) actively, and end cap (1) is fixedly mounted on the openend of working cylinder (4);
Shape and the structure of working cylinder (4) are: working cylinder (4) is the integral body of following three sections formations, is followed successively by cylinder body section, frustum of a cone section and drill steel section, the cylinder body section of working cylinder (4), frustum of a cone section and drill steel section coaxial line;
The cylinder body section is hollow cylinder, the length of cylinder body section is L, be respectively equipped with outer ring boss apart from 0.2 ~ 0.3L place of cylinder body section upper end with on the face of cylinder at 0.3 ~ 0.4L place of cylinder body section lower end, two outer ring boss shapes are identical and with working cylinder (4), be all an integral body;
Frustum of a cone section is hollow truncated cone-shaped, and the inner wall shape of open circles frustum is the semiellipse concave spherical surface; A positive electrode (6) and a negative electrode (7) are housed in the semiellipse concave spherical surface symmetrically, positive electrode (6) and negative electrode (7) coaxial line, this axis horizontal ground is through the focus of semiellipse concave spherical surface, distance between positive electrode (6) top and negative electrode (7) top is 15 ~ 45mm, and the end of positive electrode (6) is concordant with open circles frustum external surface with the end of negative electrode (7); Positive electrode (6) end is connected with the positive pole that power supply transforms controller (8), and negative electrode (7) end is connected with the negative pole that power supply transforms controller (8);
The main part of drill steel is cylinder, and cylindrical diameter is less than the minor diameter of open circles frustum, and the end of drill steel is cone;
Shape and the structure of piston (3) are: piston (3) is cylinder, and the external diameter of piston (3) is identical with the internal diameter nominal size of working cylinder (4) cylinder body, and the length of piston (3) is L
1, apart from 0.2 ~ 0.5L of piston (3) lower end
1place is provided with cannelure;
Housing (5) is bolted into hollow cylinder by two semi-hollow cylinders, and two cylindrical shape and size of semi-hollow are identical; The two ends of housing (5) inwall are respectively equipped with interior annular boss, the internal diameter of the interior annular boss of housing (5) is than the large 1 ~ 5mm of external diameter of working cylinder (4) cylinder body, the diameter of housing (5) inwall is than the large 1 ~ 5mm of outer ring boss diameter of working cylinder (4), between the outer ring boss of the interior annular boss of housing (5) and working cylinder (4), is provided with equably 4 ~ 8 springs (2);
Described working cylinder (4), housing (5), piston (3) and end cap (1) coaxial line.
2. electro-hydraulic impulse formula rock drill according to claim 1, is characterized in that described positive electrode
(6) diameter is 5 ~ 22mm, and end shape is cone, and cone angle is 25 ~ 45o; The geomery of negative electrode (7) is identical with positive electrode (6).
3. electro-hydraulic impulse formula rock drill according to claim 1, the cannelure degree of depth that it is characterized in that described piston (3) is 5 ~ 20mm
,width is 10 ~ 60mm.
4. electro-hydraulic impulse formula rock drill according to claim 1, is characterized in that described end cap (1) center is provided with through hole, and through-hole diameter and working cylinder (4) inner diameter is than being 1:(2 ~ 4).
5. electro-hydraulic impulse formula rock drill according to claim 1, the output current that it is characterized in that described power supply conversion controller (8) is high-voltage pulse current, output voltage is 25 ~ 90kV, and pulse frequency is 80 ~ 150Hz, and the monocycle impulse discharge period is 1 * 10
-3~ 3 * 10
-3s; The input voltage that power supply transforms controller is 220V or 380V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320412271 CN203347678U (en) | 2013-07-11 | 2013-07-11 | Electro-hydraulic pulse type rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320412271 CN203347678U (en) | 2013-07-11 | 2013-07-11 | Electro-hydraulic pulse type rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347678U true CN203347678U (en) | 2013-12-18 |
Family
ID=49747588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320412271 Expired - Fee Related CN203347678U (en) | 2013-07-11 | 2013-07-11 | Electro-hydraulic pulse type rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203347678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341379A (en) * | 2013-07-11 | 2013-10-09 | 武汉科技大学 | Rock drilling crushing device |
-
2013
- 2013-07-11 CN CN 201320412271 patent/CN203347678U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341379A (en) * | 2013-07-11 | 2013-10-09 | 武汉科技大学 | Rock drilling crushing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20140711 |
|
| EXPY | Termination of patent right or utility model |