CN2058424U - Auto-control hydraulic broken cutting tool - Google Patents
Auto-control hydraulic broken cutting tool Download PDFInfo
- Publication number
- CN2058424U CN2058424U CN 89208198 CN89208198U CN2058424U CN 2058424 U CN2058424 U CN 2058424U CN 89208198 CN89208198 CN 89208198 CN 89208198 U CN89208198 U CN 89208198U CN 2058424 U CN2058424 U CN 2058424U
- Authority
- CN
- China
- Prior art keywords
- cutting tool
- control hydraulic
- auto
- ratch
- broken cutting
- 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- Withdrawn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
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 5
- 206010008469 Chest discomfort Diseases 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 239000000428 dust Substances 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 230000009975 flexible effect Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
Images
Abstract
The utility model discloses an auto-control hydraulic broken cutting tool, comprising the nozzle body of an edge tip, a toothed bar, an elastic check ring, a sealing ring, a valve seat, and a toothed seat. The auto-control hydraulic broken cutting tool directly spurts out high-pressure water jet from a cutting edge, and can positively suppress powder dust; the auto-control hydraulic broken cutting tool can make full use of cracks created by the cutting tool to enable rocks to break under tensile forces at a hydraulic wedge mode. The utility model is especially suitable for the auto-control hydraulic broken cutting tool on the coal mining machine, the development machine, the rock drill, and the drilling rig of the high-pressure water jet. The utility model has the advantages of simple structure, high strength, easy assembly and disassembly, flexible action and high reliability. The auto-control hydraulic broken cutting tool can prevent the powder dust and slurry from entering the cutting tool.
Description
The automatic control hydraulic fracture cutter that the utility model relates to is best suited for the automatic control hydraulic fracture cutter on the coal-winning machine, development machine, hammer drill, rig of high-pressure water jet.
Disclosed automatic control waterpower pick among the prior art patent document NO:86206244.6 of this technical field, has compact conformation, pick is stressed little, the characteristics that hydraulic pressure is low, pick can satisfy the broken and dustless effect of requirement of efficient low-consume, but structure is not easy to loading and unloading, blade tip nozzle body and pick body have relative motion, when fractured rock, when cutting resistance acts on the pick body, the blade tip body can not after contract and open the water route, several milliseconds of jet injection delay cutter actions easily make nozzle pour in dust and stop up.
In view of the problem that prior art exists, the purpose of this utility model is a kind of compact conformation of design, simple, effective automatic control hydraulic fracture cutter.
Automatic control hydraulic fracture cutter of the present utility model is made up of blade tip nozzle body, ratch, circlip, sealing ring, valve seat, tooth valve.Nozzle is positioned at the ring sword center of blade tip body.It is characterized in that: a. ratch and blade tip nozzle tighten together, whole moving; B. utilize the difference and the bar shoulder cone seal face closure high pressure chest of diameter on the ratch; C. ratch cooperates with the valve base chamber cylinder and leaves the gap, and ratch conical seal (contact) face front portion is provided with the radially little damping hole from cylinder to central passage.
Jet injection direction of the present utility model is consistent with cutter application of force direction; Jet sprays and cutter blade tip same-action point; Nozzle is in cutter blade tip position.When touching broken body, crushing force directly is delivered to conical seal (contact) face by ratch, contracts after the ratch integral body, opens the water under high pressure passage.Utilize different area on the ratch, make to act on hydraulic resultant force and trend towards bar shoulder taper surface and close with the valve seat applying.Water under high pressure is reduced to low-pressure water continuation injection significantly by the cylinder fit clearance and the radially little damping hole of ratch of ratch and valve base chamber.The blade of nozzle body can be a sword, also can be the line sword.
Description of drawings:
Blade tip nozzle body 1, ratch 2, circlip 3, sealing ring 4, valve seat 5, sealing ring 6,7,8, toothholder 9, conical seal (contact) face 10.
Below in conjunction with accompanying drawing an embodiment of the present utility model is described further.
Automatic control hydraulic fracture cutter of the present utility model, water under high pressure enters valve seat 5 radial direction through hole from toothholder 9 radial direction through hole, enters ratch 2 bars shoulder front and back annular space again.Because diameter d 1 is greater than d3 on the ratch 2, pretend and be used in hydraulic resultant force total on the ratch 2 and trend towards making bar shoulder conical seal (contact) face 10 to fit closing with valve seat 5 conical surfaces, water under high pressure in the annular space is by the fit clearance of ratch 2 with valve seat 5 garden cylinders, flow into the radially little damping hole in ratch 2 front portions, flow into ratch 2 central through holes again, the bar of filling simultaneously shoulder back space, when runner is full of entirely, blade tip nozzle body 1 just sprays stable low-pressure water, this low-pressure water is delivered between bar simultaneously, the hydraulic coupling that acts under diameter d 2 and the d3 area difference is closed the conical surface 10, and at this moment the water in the annular high pressure chest before the bar shoulder acts on the ratch 2: force self-balanced.
This crushing cutter, blade tip nozzle body 1 tightens together with ratch 2, when touching broken thing, contracts after nozzle body 1 and ratch 2 integral body, and crushing force is delivered to conical seal (contact) face 10 by ratch 2, opens the high pressure chest path.Because center flow channels has been full of low-pressure water, when conical seal (contact) face 10 1 is opened, high-voltage signal just can be delivered to nozzle body 1 with SVEL by fluid immediately, ejection high-pressure water jet and cutter are stressed synchronously, cutter is by after the design runlength, and ratch 2 rear end faces contact with toothholder 9.The blade of nozzle body can be a sword, and promptly blade tip is for a bit, and spray orifice also can be the line sword on blade tip, and promptly blade is a straight line, can establish a spray orifice on this straight line, also can establish a plurality of spray orifices.Conical seal (contact) face 10 is under situation about opening, because nozzle is at the spray high-pressure water jet, so dust can not enter nozzle.When cutter does not touch broken body, if dust pours in nozzle and spray orifice is stopped up, at this moment the interior low-pressure water of cutter just becomes water under high pressure because stop flows at once, treats that with after the dust ejection, the generation damping of flowing becomes low-pressure water again.
After broken thing was broken, cutter broke away from broken thing and unloads and cut.Under ratch 2 diameter d 1 and d3 area difference, high pressure fluid power is closed the conical surface 10 again, and low-pressure water continues to spray, and makes the conical surface 10 and valve seat 5 keep closing.
Automatic control hydraulic fracture cutter of the present utility model directly sprays high-pressure water jet from blade, can actively suppress dust; Can make full use of the crackle that cutter produces, make rock broken under tension force with the hydrodynamic wedge form, thereby reach very littler than independent fragmentation of cutter and opening force of more efficient effect while of the auxiliary cutter fragmentation of water jet precutting trough, under 100 MPa high pressure, opening force is not more than 200 newton, under 200 MPa high pressure, opening force is not more than 400 newton, be active in one's movements, reliable, prevent that dust and powder slurry from entering in the cutter.Blade tip nozzle and ratch are affixed, cutter intensity height, the sustained firing low-pressure water, having eliminated because of water under high pressure flows at inner lead moves ejection time lag in cutter, the sustained firing low-pressure water has been eliminated the nozzle blockage problem, better the cooling and lubricating cutter, easy to loading and unloading, have practicality widely.
Claims (2)
1. automatic control hydraulic fracture cutter is made up of blade tip nozzle body, ratch, circlip, sealing ring, valve seat, toothholder, and nozzle is positioned at the ring sword center of blade tip body, it is characterized in that:
A ratch and blade tip nozzle tighten together, whole moving;
D utilizes the difference and the bar shoulder cone seal face closure high pressure chest of diameter on the ratch;
The c ratch cooperates with the cylinder of valve base chamber and leaves the gap, and ratch conical seal (contact) face front portion is provided with the radially little damping hole from cylinder to central passage.
2. automatic control hydraulic fracture cutter according to claim 1 is characterized in that: the blade of nozzle body can be a sword, also can be the line sword.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89208198 CN2058424U (en) | 1989-06-04 | 1989-06-04 | Auto-control hydraulic broken cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89208198 CN2058424U (en) | 1989-06-04 | 1989-06-04 | Auto-control hydraulic broken cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2058424U true CN2058424U (en) | 1990-06-20 |
Family
ID=4864925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89208198 Withdrawn CN2058424U (en) | 1989-06-04 | 1989-06-04 | Auto-control hydraulic broken cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2058424U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341661C (en) * | 2003-03-28 | 2007-10-10 | 日立比亚机械股份有限公司 | Machine for processing printed circuitboard |
| CN103174421A (en) * | 2013-03-11 | 2013-06-26 | 中国矿业大学 | Automatic 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 |
| CN106050232A (en) * | 2016-06-22 | 2016-10-26 | 中国矿业大学 | Water-saving efficiency-increased hydraulic cutting pick |
-
1989
- 1989-06-04 CN CN 89208198 patent/CN2058424U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341661C (en) * | 2003-03-28 | 2007-10-10 | 日立比亚机械股份有限公司 | Machine for processing printed circuitboard |
| CN103174421A (en) * | 2013-03-11 | 2013-06-26 | 中国矿业大学 | Automatic 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 |
| CN106050232A (en) * | 2016-06-22 | 2016-10-26 | 中国矿业大学 | Water-saving efficiency-increased hydraulic cutting pick |
| WO2017219613A1 (en) * | 2016-06-22 | 2017-12-28 | 中国矿业大学 | Water-saving and efficiency-increasing hydraulic cutting pick |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |