CN86206244U - Automatic control hydraulic pick - Google Patents
Automatic control hydraulic pick Download PDFInfo
- Publication number
- CN86206244U CN86206244U CN 86206244 CN86206244U CN86206244U CN 86206244 U CN86206244 U CN 86206244U CN 86206244 CN86206244 CN 86206244 CN 86206244 U CN86206244 U CN 86206244U CN 86206244 U CN86206244 U CN 86206244U
- Authority
- CN
- China
- Prior art keywords
- pick
- automatic control
- blade tip
- utility
- model
- 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.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000005065 mining Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 239000000428 dust Substances 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 6
- 238000013467 fragmentation Methods 0.000 description 5
- 238000006062 fragmentation reaction Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 231100000241 scar Toxicity 0.000 description 3
- 238000000151 deposition Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 102000016938 Catalase Human genes 0.000 description 1
- 108010053835 Catalase Proteins 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model discloses an automatic control hydraulic cutting pick used in high pressure water jet stream and excavating machines. Because the utility model appropriately adjusts the position of a nozzle and changes structure of an automatic control valve, etc., the hydraulic cutting pick can combine high pressure water jet stream to pulverize the high pressure water jet stream, reduces the stress of the cutting pick, reduces hydraulic requirements, can satisfy the pulverization requirements of high efficiency and lower consumption and obtains the optimum dust removing effect. The utility model can control high pressure water switch mechanism by self and largely reduces the energy consumption for jetting useless jet stream to save water. Because space occupied by the appearance (including a cutting pick seat) of the utility model is the same as general cutting picks, the utility model is ensured to be suitable for the existing excavating machines.
Description
The utility model relates to a kind of high pressure water jet field that belongs to, and is applied to the automatic control waterpower pick of high-pressure water jet mining machinery.
The prior art Russian Patent file № .1 of this technical field, disclosed spraying pick in 016,502 is to allow water under high pressure spray orifice through two symmetries in the pick body be vaporific ejection, can only play the effect of the dirt that goes out, and not have in conjunction with broken effect.Pick is equipped with the water channel switch valve, control the injection of water under high pressure by clipping force, because the active area of press water is too big, under the pressure water action of 100 crust, the opening force of valve is 1060 kgfs, it is too big to make switch valve open required clipping force, and big like this opening force makes water under high pressure actual can not ejection in the pick body.The go out DeGrain of dirt more can not adapt to high rigidity catalase.Another patent document United States Patent (USP) № .4,456, disclosed spraying pick in 306, the position of nozzle is above the pick axis, and the range distance of scar (spray site to) and spray site are all very big from the distance of pick blade tip, do not have the effect in conjunction with fragmentation, only play the effect of depositing dust and cooling pick, and depositing dust is passive, after dust flies upward, disinthibites it again.
The utility model is considered existing problem in existing above-mentioned every prior art, and a kind of compact conformation and the automatic control waterpower pick that the charge is small are provided, owing to suitably adjusted the position of nozzle and changed the structure of internally piloted valve etc., therefore, it is stressed that this waterpower pick has realized reducing pick, reduction is to the requirement of hydraulic pressure, makes pick can satisfy the requirement of efficient low-consume fragmentation and obtains the best dirt effect of going out.
Common pick is for the rock of high rigidity, be difficult to fragmentation, it is broken to rely on the waterpower pick, and promptly adopts high-pressure water jet and the standard machinery pick form in conjunction with fragmentation, be controlled at the stage of cracking pick is stressed, the work of running crack is finished by high-pressure water jet.The nozzle of available technology adopting and pick blade tip split, and the jet that penetrates from nozzle vertically is injected in the mode of 1-2 millimeter before the pick blade tip, and its practical result shows can not satisfy that efficient low-consume is broken to require and obtain the best dirt effect of going out.In order to realize task of the present utility model, the utility model has adopted following mode to finish: 1. the jet injection direction is consistent with the pick cutting direction; 2. jet sprays and pick blade tip same-action point; 3. nozzle is in pick blade tip position.Like this, make the range (nozzle is to the distance of scar) can be very little, high-pressure water jet can make full use of the crackle that is produced under the pick blade tip, realizes in conjunction with broken, and reaches best in conjunction with the effect of pick fragmentation.The high-pressure water jet that penetrates in the nozzle also penetrates the main root of this dust of powder nucleome under the pick sword, dust is not just flown upward as yet pressed down to live.The dirt that goes out reaches best with the effect of cooling off pick.
The utility model is compared with pure mechanical pick, and specifically have: 1. clipping force reduces significantly; 2. the dirt effect of going out is remarkable; 3. lubricate the cooling pick, prolonged the life-span of pick; 4. can realize big cut dark and not having the broken operating mode of efficient low-consume of high impact loads.Compare with the pick of assist type work and to have: critical hydraulic pressure significantly reduces.The dirt effect of going out is remarkable, has enthusiasm, and is simple in structure, and reliable operation be the more important thing is and realized that high-pressure water jet is broken with combining of mechanical pick, has significantly reduced the requirement to hydraulic pressure.
Description of drawings:
Fig. 1 is a structure chart of the present utility model;
Fig. 2 is the structure chart of nozzle in the utility model.
Below in conjunction with accompanying drawing this utility model is described in further detail.
Shown in accompanying drawing 1,2, structure of the present utility model is mainly by blade tip body (1), sealing ring pad (2), pick body (3), valve rod (4), pick box (5), O RunddichtringO (6), block (7), salient shoulder type valve pocket (8), end cap (9) and circlip (10), nozzle compositions such as (11), its profile comprises that toothholder takes up space, and is the same with common pick, guaranteed being suitable on existing mining machinery.
The switching mechanism of water under high pressure is realized automatic control, has reduced the energy consumption that sprays useless jet to greatest extent, has saved the water yield.The form that internally piloted valve structure of the present utility model adopts valve rod (4) and salient shoulder type valve pocket (8) to assemble, pick is stressed only need to overcome water pressure.Blade tip body (1) is not when contacting scar, and the water pressure that acts on the salient shoulder type valve pocket (8) makes salient shoulder type valve pocket (8) be close to the conical surface of valve rod (4), thereby closes water under high pressure.Between salient shoulder type valve pocket (8) and the end cap (9), between pick body (3) and the valve gap (9), between pick body (3) and the pick box (5), between salient shoulder type valve pocket (8) and pick body (3) and the valve rod (4) O RunddichtringO (6) is arranged all, between blade tip body (1) and the valve rod (4) sealing ring pad (2) is arranged.Adopt circlip (10) fixing between pick body (3) and the pick box (5).Solved and adopted when being threaded.When having antispin direction power owing to screw thread is easily loosening, the problem that pick is dropped out.Cutting resistance when blade tip body (11) fractured rock is during greater than the water pressure setting that acts on the salient shoulder type valve pocket (8), valve rod (4) just retreats to extreme position rapidly, moment reaches full flow, water under high pressure is through the circular passage of valve rod (4), enter the centre bore of blade tip body (1), pass through nozzle (11) again and eject, form high-pressure water jet in conjunction with the pick fractured rock.When blade tip body (1) unloaded, water under high pressure was closed.
During blade tip body (1) fractured rock, cutting resistance is greater than the water pressure that acts on the valve rod (4), and the blade tip body begins to retreat, the backward travel space is all in pick body (3), when avoiding the backward travel space blocked, blade tip body (1) can not retreat, and valve can not be opened.
The blade tip of pick blade tip body (1) adopts ring tooth shape shape, and the diameter of ring sword is the 2-4 millimeter, and optimum diameter is 3 millimeters, and nozzle (11) is arranged on the center of this ring sword, adopts the taper shape that internal taper is arranged.
Adopt helicitic texture between blade tip body (1) and the pick body (3), acquiring a certain degree can be free movable, changes easily.Removable 3 millimeters of blade tip body front and back, during its stressed rotation, can not withdraw along screw thread, the suffered power some of fractured rock passes to pick box (5) from blade tip body (1) by pick body (3), another is partly from blade tip body (1), pass to salient shoulder type valve pocket (8) by valve rod (4), both realized opening the water route, realized the transmission of power again.
Embodiment of the present utility model will further specify in conjunction with the accompanying drawings:
The blade tip of blade tip body (1) adopts the ring sword, and the diameter of ring sword is the 2-4 millimeter, and the best is 3 millimeters; Nozzle (11) is positioned at the center of ring sword, and the employing internal taper is 13 ° a taper shape, and range is 3 millimeters.
The coal seam of broken hardness f=2
Hydraulic pressure: 2.0 * 10
7～3.0 * 10
7Newton/meter
2
Nozzle diameter: 0.5～1.0mm
Valve rod center-hole diameter 3～5mm
The rock of broken f=8～10
Hydraulic pressure: 1.0 * 10
8Newton/meter
2
Nozzle diameter: 0.4～0.8mm
The center-hole diameter of valve rod: 2～4mm
Claims (7)
1, a kind of automatic control waterpower pick that is applied to the high-pressure water jet mining machinery, it is by blade tip body (1), sealing ring pad (2), pick body (3), valve rod (4), pick box (5), O RunddichtringO (6), baffle plate (7), salient shoulder type valve pocket (8), end cap (9), circlip (10), nozzle (11) is formed.It is characterized in that: nozzle (11) is positioned at the center of the ring sword of blade tip body (1).
2, automatic control waterpower pick according to claim 1, its feature: the sharp sword of blade tip body (1) is the ring sword, and the diameter of ring sword is 2～4 millimeters, and optimum diameter is 3 millimeters.
3, automatic control waterpower pick according to claim 1 is characterized in that: nozzle adopts the taper shape with internal taper, and the nozzle diameter is 0.4～1.0 millimeter.
4, automatic control waterpower pick according to claim 1 is characterized in that: adopt telescopic movingly assembling form between valve rod (4) and the salient shoulder type valve pocket (8).
5, automatic control waterpower pick according to claim 1 is characterized in that: adopt helicitic texture between blade tip body (1) and the pick body (3).
6, automatic control waterpower pick according to claim 1 is characterized in that: adopt circlip (10) fixing between pick body (3) and the pick box (5).
7, automatic control waterpower pick according to claim 1 is characterized in that: blade tip body (1) backward travel space, and all in pick body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86206244 CN86206244U (en) | 1986-08-26 | 1986-08-26 | Automatic control hydraulic pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86206244 CN86206244U (en) | 1986-08-26 | 1986-08-26 | Automatic control hydraulic pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86206244U true CN86206244U (en) | 1988-08-24 |
Family
ID=4808923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86206244 Withdrawn CN86206244U (en) | 1986-08-26 | 1986-08-26 | Automatic control hydraulic pick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86206244U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174421A (en) * | 2013-03-11 | 2013-06-26 | 中国矿业大学 | Automatic control hydraulic rock breaking pick |
| CN103939095A (en) * | 2014-04-25 | 2014-07-23 | 中国矿业大学 | Valve control direct acting type rock breaking pick |
| CN114151082A (en) * | 2021-10-27 | 2022-03-08 | 中国矿业大学 | Automatic high-pressure jet flow auxiliary rock breaking and foam dust suppression cutting pick device |
-
1986
- 1986-08-26 CN CN 86206244 patent/CN86206244U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174421A (en) * | 2013-03-11 | 2013-06-26 | 中国矿业大学 | Automatic control hydraulic rock breaking pick |
| CN103939095A (en) * | 2014-04-25 | 2014-07-23 | 中国矿业大学 | Valve control direct acting type rock breaking pick |
| CN103939095B (en) * | 2014-04-25 | 2015-12-09 | 中国矿业大学 | Valve control direct-acting rock breaking pick |
| CN114151082A (en) * | 2021-10-27 | 2022-03-08 | 中国矿业大学 | Automatic high-pressure jet flow auxiliary rock breaking and foam dust suppression cutting pick device |
| CN114151082B (en) * | 2021-10-27 | 2023-12-12 | 中国矿业大学 | Automatic high-pressure jet auxiliary rock breaking and foam dust suppression cutting pick device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |