CN204944958U - A kind of hydraulic rotating impact cutting millstone for Test of rock cracking - Google Patents
A kind of hydraulic rotating impact cutting millstone for Test of rock cracking Download PDFInfo
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- CN204944958U CN204944958U CN201520715009.0U CN201520715009U CN204944958U CN 204944958 U CN204944958 U CN 204944958U CN 201520715009 U CN201520715009 U CN 201520715009U CN 204944958 U CN204944958 U CN 204944958U
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Abstract
The utility model relates to a kind of hydraulic rotating impact cutting millstone for Test of rock cracking, it is characterized in that: described destroyer comprises valve body, piston, accumulator and rotating mechanism; Be provided with described piston in described valve body, the oil-feed loop being positioned at described valve body be provided with described accumulator, be positioned at described valve body oil outlet end and be provided with bur; Described valve body near described bur side is provided with described rotating mechanism, and described rotating mechanism drives described bur to rotate.The utility model, due in beater mechanism, drives impact piston to-and-fro movement by hydraulic oil, implements to impact, its oil-feed loop is coupled with accumulator, inside fills high pressure nitrogen the bit shank of bur, for the storage fluid when piston low-speed motion; Fluid is compensated, to overcome the contradiction of constant fuel feeding and piston variable motion, to reduce power consumption and the heating of reduction system during high-speed motion.The utility model can extensively be applied in rock failure research field.
Description
Technical field
The utility model relates to a kind of rock breaking device, particularly about a kind of hydraulic rotating for Test of rock cracking-impact cutting millstone.
Background technology
At present, when studying rock-cracking mechanism, often can use disintegrating apparatus and effective fragmentation is carried out to rock.Common disintegrating apparatus generally forms by impacting and rotate two parts, adopts the rock failure product of Pneumatic immpacting and Pneumatic rotary existing a lot of at home and abroad.Pneumatic immpacting as all kinds of air drill, disintegrating machine, down-hole hammer and pneumatic pick, the rotating mechanism 4 as roofbolter, rock rotary rig and independent revolution air drill of Pneumatic rotary, a great variety.But these all products, according to it for different targets and job requirement, have work that is different, that determine and performance parameter, be only applicable to rock drilling boring and crushing operation, the requirement of Test of rock cracking change parameter can not be met.
Summary of the invention
For the problems referred to above, the purpose of this utility model be to provide a kind of simple and compact for structure, easy and simple to handle, experimentation cost is low, fully can meet the hydraulic rotating for the Test of rock cracking-impact cutting millstone of the performance parameter of rock-cracking mechanism research needs.
For achieving the above object, the utility model takes following technical scheme: a kind of hydraulic rotating impact cutting millstone for Test of rock cracking, is characterized in that: described destroyer comprises valve body, piston, accumulator and rotating mechanism; Be provided with described piston in described valve body, the oil-feed loop being positioned at described valve body be provided with described accumulator, be positioned at described valve body oil outlet end and be provided with bur; Described valve body near described bur side is provided with described rotating mechanism, and described rotating mechanism drives described bur to rotate.
Described valve inner cavity is divided into valve left end room, middle part valve pocket, end valve pocket and valve right-hand member room; Described accumulator is communicated with described middle part valve pocket by in-line, and described middle part valve pocket is communicated with piston ante-chamber through first passage; Described piston ante-chamber is communicated with described end valve pocket through second channel, is communicated with described valve right-hand member room through third channel; Described end valve pocket is connected with return line; Described middle part valve pocket is communicated with piston back cavity through four-way, and described piston back cavity is communicated with described end valve pocket through second channel, is communicated with described valve left end room through four-way.
Have an airtight cavity in described accumulator, be provided with a diaphragm of rubber in this airtight cavity and closed chamber be separated into hydraulic oil cavity and high pressure nitrogen cavity, described hydraulic oil cavity is communicated with described valve body by in-line.
Described rotating mechanism comprises oil motor and gear pair, and described oil motor connects described bur through described gear pair.
The utility model is owing to taking above technical scheme, it has the following advantages: 1, the utility model is due in beater mechanism, impact piston to-and-fro movement is driven by hydraulic oil, implement to impact to the bit shank of bur, its oil-feed loop is coupled with accumulator, inside fill high pressure nitrogen, for the storage fluid when piston low-speed motion; Fluid is compensated, to overcome the contradiction of constant fuel feeding and piston variable motion, to reduce power consumption and the heating of reduction system during high-speed motion.2, performance parameter of the present utility model (impact energy, frequency of impact, rotary torque, rotating speed) changes by the pressure and flow changing hydraulic oil supply system, to adapt to the needs of different tests.3, the utility model have simple and compact for structure, easy and simple to handle, experimentation cost is low, fully can meet the advantages such as rock-cracking mechanism research needs.The utility model can extensively be applied in rock failure research field.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is the principle of work schematic diagram of the utility model when hydraulic shock backhaul;
Fig. 3 is the principle of work schematic diagram of the utility model when hydraulic shock stroke.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the utility model provides a kind of hydraulic rotating impact cutting millstone for Test of rock cracking, and it comprises valve body 1, piston 2, accumulator 3 and rotating mechanism 4.Be provided with piston 2 in valve body 1, the oil-feed loop being positioned at valve body 1 be provided with accumulator 3, be positioned at valve body 1 oil outlet end and be provided with bur.Valve body 1 near bur side is provided with rotating mechanism 4, by rotating mechanism 4 driven rotary drill bit rotational.
In above-described embodiment, valve body 1 internal cavity is divided into middle part valve pocket 5, end valve pocket 6, valve right-hand member room 7 and valve left end room 8.Accumulator 3 is communicated with middle part valve pocket 5 by in-line P, middle part valve pocket 5 is communicated with piston ante-chamber 9 through first passage A, piston ante-chamber 9 is communicated with end valve pocket 6 through second channel B, and be communicated with valve right-hand member room 7 through third channel C, end valve pocket 6 is connected with return line O.Middle part valve pocket 5 is communicated with piston back cavity 10 through four-way D, and piston back cavity 10 is communicated with end valve pocket 6 through second channel B, is communicated with valve left end room 8 through four-way F.During work, as shown in Figure 2, hydraulic oil enters piston ante-chamber 9 by in-line P through middle part valve pocket 5, first passage A, promotes piston 2 and makes drawback movement; And the oil of piston back cavity 10 is through four-way D, end valve pocket 6, fuel tank is returned by return line O, a mobile segment distance, backhaul valve opening hole and oil-feed are connected, the oil of valve left end room 8 is connected through second channel B and return line O, promote piston 2 to move to left, switch oil circuit, hydraulic oil enters piston back cavity 10 through middle part valve pocket 5, four-way D, and the oil in piston ante-chamber 9 connects return line O through first passage A, end valve pocket 6, and now piston 2 continues to move to left by inertia, and slow down rapidly under reverse oil pressure effect, until speed is 0, backhaul terminates, and starts stroke.As shown in Figure 3, in stroke, piston 2 accelerates gradually under oil pressure effect, when closing on the bit shank hitting bur, stroke valve opening hole and oil-feed are connected, the oil of valve right-hand member room 7 is connected through third channel C, second channel B and return line O, piston 2 moves to right switching oil circuit, and hydraulic oil enters piston ante-chamber 9 again.But under inertia effect, piston 2 still continues forward, the bit shank of last high speed impact bur, piston 2 bounces, and starts next circulation.Generation to-and-fro movement like this, realizes high-frequency percussion.
In the various embodiments described above, have an airtight cavity in accumulator 3, be provided with a diaphragm of rubber in this airtight cavity and closed chamber be separated into hydraulic oil cavity and high pressure nitrogen cavity, hydraulic oil cavity is communicated with valve body 1 by in-line P.By arranging accumulator 3, can make to make diaphragm of rubber carry out compression and expansion by high pressure nitrogen in accumulator 3, and then give hydraulic oil corresponding elasticity, ensure the synchronized movement of fuel delivery and piston 2, make the hydraulic pump of constant rate meet the requirement of piston 2 variable motion, its effect is the same with the capacitor in circuit in fact.Average fuel delivery design needed for system can be made by its adjustment, reduce power consumption, avoid system to generate heat.And, accumulator 3 is set and can absorbs valve body 1 in the instantaneous pressure impact of opening, closing process occurs, avoid oil pipe burst.And can the pulsation of effectively even oil pump oil extraction pressure, make fuel delivery even.
In the various embodiments described above, rotating mechanism 4 comprises oil motor and gear pair, and oil motor, after gear pair slows down, connects bur, driven rotary drill bit rotational.
In sum, the utility model in use, drives impact piston 2 to-and-fro movement by hydraulic oil, implements to impact, and fill high pressure nitrogen to the bit shank of bur in accumulator 3, for the storage fluid when piston 2 low-speed motion; Fluid is compensated, to overcome the contradiction of constant fuel feeding and piston 2 variable motion, to reduce power consumption and the heating of reduction system during high-speed motion.The performance parameter (impact energy, frequency of impact, rotary torque, rotating speed) of hydraulic rotating-impact cutting millstone changes by the pressure and flow changing hydraulic oil supply system, to adapt to the needs of different tests.
The various embodiments described above are only for illustration of the utility model; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (5)
1., for a hydraulic rotating impact cutting millstone for Test of rock cracking, it is characterized in that: described destroyer comprises valve body, piston, accumulator and rotating mechanism; Be provided with described piston in described valve body, the oil-feed loop being positioned at described valve body be provided with described accumulator, be positioned at described valve body oil outlet end and be provided with bur; Described valve body near described bur side is provided with described rotating mechanism, and described rotating mechanism drives described bur to rotate.
2. a kind of hydraulic rotating impact cutting millstone for Test of rock cracking as claimed in claim 1, is characterized in that: described valve inner cavity is divided into valve left end room, middle part valve pocket, end valve pocket and valve right-hand member room; Described accumulator is communicated with described middle part valve pocket by in-line, and described middle part valve pocket is communicated with piston ante-chamber through first passage; Described piston ante-chamber is communicated with described end valve pocket through second channel, is communicated with described valve right-hand member room through third channel; Described end valve pocket is connected with return line; Described middle part valve pocket is communicated with piston back cavity through four-way, and described piston back cavity is communicated with described end valve pocket through second channel, is communicated with described valve left end room through four-way.
3. a kind of hydraulic rotating impact cutting millstone for Test of rock cracking as claimed in claim 1, it is characterized in that: there is in described accumulator an airtight cavity, be provided with a diaphragm of rubber in this airtight cavity and closed chamber be separated into hydraulic oil cavity and high pressure nitrogen cavity, described hydraulic oil cavity is communicated with described valve body by in-line.
4. a kind of hydraulic rotating impact cutting millstone for Test of rock cracking as claimed in claim 2, it is characterized in that: there is in described accumulator an airtight cavity, be provided with a diaphragm of rubber in this airtight cavity and closed chamber be separated into hydraulic oil cavity and high pressure nitrogen cavity, described hydraulic oil cavity is communicated with described valve body by described in-line.
5. a kind of hydraulic rotating impact cutting millstone for Test of rock cracking as described in any one of Claims 1 to 4, it is characterized in that: described rotating mechanism comprises oil motor and gear pair, described oil motor connects described bur through described gear pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715009.0U CN204944958U (en) | 2015-09-15 | 2015-09-15 | A kind of hydraulic rotating impact cutting millstone for Test of rock cracking |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520715009.0U CN204944958U (en) | 2015-09-15 | 2015-09-15 | A kind of hydraulic rotating impact cutting millstone for Test of rock cracking |
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| CN204944958U true CN204944958U (en) | 2016-01-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905722A (en) * | 2017-12-20 | 2018-04-13 | 山东天瑞重工有限公司 | A kind of closed hydraulic drill |
| CN113738268A (en) * | 2021-09-13 | 2021-12-03 | 中国铁建重工集团股份有限公司 | Impact rock drilling equipment |
| CN113982615A (en) * | 2021-10-25 | 2022-01-28 | 中国矿业大学(北京) | High-frequency gas drive particle impact rock breaking device |
| CN114413695A (en) * | 2022-01-20 | 2022-04-29 | 叶澄 | Static hydraulic blasting device and construction process thereof |
-
2015
- 2015-09-15 CN CN201520715009.0U patent/CN204944958U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905722A (en) * | 2017-12-20 | 2018-04-13 | 山东天瑞重工有限公司 | A kind of closed hydraulic drill |
| CN107905722B (en) * | 2017-12-20 | 2024-03-08 | 山东天瑞重工有限公司 | Closed hydraulic rock drill |
| CN113738268A (en) * | 2021-09-13 | 2021-12-03 | 中国铁建重工集团股份有限公司 | Impact rock drilling equipment |
| CN113738268B (en) * | 2021-09-13 | 2024-04-05 | 中国铁建重工集团股份有限公司 | Impact rock drilling equipment |
| CN113982615A (en) * | 2021-10-25 | 2022-01-28 | 中国矿业大学(北京) | High-frequency gas drive particle impact rock breaking device |
| CN113982615B (en) * | 2021-10-25 | 2023-08-11 | 中国矿业大学(北京) | High-frequency gas-driven particle impact rock breaking device |
| CN114413695A (en) * | 2022-01-20 | 2022-04-29 | 叶澄 | Static hydraulic blasting device and construction process thereof |
| CN114413695B (en) * | 2022-01-20 | 2024-03-15 | 叶澄 | Static hydraulic blasting device and construction process thereof |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |