CN103195423B - Multi-point sealing apparatus for auxiliary high-pressure water jet of cutting mechanism of digging device - Google Patents
Multi-point sealing apparatus for auxiliary high-pressure water jet of cutting mechanism of digging device Download PDFInfo
- Publication number
- CN103195423B CN103195423B CN201310071638.XA CN201310071638A CN103195423B CN 103195423 B CN103195423 B CN 103195423B CN 201310071638 A CN201310071638 A CN 201310071638A CN 103195423 B CN103195423 B CN 103195423B
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- China
- Prior art keywords
- water guide
- inlet channel
- cut
- water
- guide housing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000007789 sealing Methods 0.000 title claims abstract description 63
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Hydraulic Turbines (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a multi-point sealing apparatus for an auxiliary high-pressure water jet of a cutting mechanism of a digging device. The apparatus comprises a water guide housing and a water guide sleeve which are sequentially sleeved between a cutting shaft and a cutting box of the cutting mechanism of the digging device, wherein a water inlet channel is arranged along a radial direction through the water guide housing, the water guide sleeve and the cutting shaft, the water inlet channel is respectively communicated with a water inlet of the cutting box and a main channel of the cutting shaft, two sides of the water inlet channel are respectively provided with an O-shaped sealing ring I, a tooth combination seal and an O-shaped sealing ring II, the water guide housing is provided with a sluicing groove, and the cutting box is provided with a leaking channel communicated with the sluicing groove. The multi-point sealing apparatus provided by the invention solves the sealing problem of the auxiliary high-pressure water jet of the cutting mechanism of the digging device, can effectively seal a high-pressure water with a pressure of less than 50 MPa, is long in sealing time and good in sealing effect, and improves an auxiliary cutting efficiency of the high pressure water jet.
Description
Technical field
The present invention relates to a kind of digging equipment cutting mechanism additional high pressure water jet Multi-point sealing device, be applicable to the high pressure rotary sealing in digging equipment cutting mechanism.
Background technology
Little for girdle alternate heading space, formation hardness high, the lower-powered small-sized digging equipment of general employing carries out digging, but digging efficiency is low.In order to improve its digging efficiency, only increasing digging equipment power, and not increasing its cutting mechanism size, tool wear certainly will be caused serious, and there is potential safety hazard.Based on this, have developed high-pressure water jet and assist cutting arrangement, but be badly in need of solving its high pressure rotary sealing problem.Existing digging equipment can only solve its internal spraying system low pressure rotatory sealing, and for additional high pressure water jet, rotatory sealing effect is bad, easy leakage failure, affects component in cut casing and normally works and reduce auxiliary cut effect.
Summary of the invention
Goal of the invention: the object of the invention is to overcome the deficiencies in the prior art, proposes a kind of Multi-point sealing device, to realize the efficient cut of digging equipment cutting mechanism additional high pressure water jet.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of digging equipment cutting mechanism additional high pressure water jet Multi-point sealing device, described Multi-point sealing device comprises water guide housing and water guide cover, between the cut axle that described water guide cover and water guide housing are set in digging equipment cutting mechanism successively and cut casing, water guide cover is fixed with cut axle, water guide housing and cut casing are fixed, free to rotate between water guide cover and water guide housing, at water guide housing, water guide cover and cut axle are radially throughly provided with inlet channel, described inlet channel is communicated with the water inlet of cut casing and the sprue of cut axle respectively, on contact surface between cut axle in inlet channel both sides and water guide overlap and water guide overlap between water guide housing contact surface on be respectively equipped with O-ring seals one and profile of tooth combination sealing, the water guide housing of profile of tooth combination sealing away from inlet channel side is provided with dredging flow groove, O-ring seals two is provided with away from the contact surface between the water guide housing of inlet channel side and cut casing at inlet channel both sides and dredging flow groove, cut casing is provided with leaking of being communicated with described dredging flow groove.
In the present invention, further, the quantity of the profile of tooth combination sealing of the every side of described inlet channel is at least two.
In the present invention, further, described in have the quantity of dredging flow groove identical with profile of tooth combination sealing, and one_to_one corresponding.
Beneficial effect: Multi-point sealing device of the present invention solves digging equipment cutting mechanism additional high pressure water jet sealing problem, the water under high pressure of 50MPa can be less than by effective sealing pressure, and Sealing period is long, good sealing effect, improves high-pressure water jet and assists cutting efficiency.
Accompanying drawing explanation
Fig. 1 is digging of the present invention equipment cutting mechanism subdivision graph;
Fig. 2 is the Multi-point sealing structure drawing of device of the embodiment of the present invention one;
Fig. 3 is the Multi-point sealing structure drawing of device of the embodiment of the present invention two.
In figure: 1, cut axle; 2, connecting flange; 3, bolt one; 4, cut casing; 5, end cap; 6, bolt two; 7, Multi-point sealing device; 8, bolt three; 9, bolt four; 1-1, sprue; 1-2, delivery port; 4-1, water inlet; 7-1, water guide housing; 7-2, inlet channel; 7-3, O-ring seals one; 7-4, water guide cover; 7-5, back-up ring; 7-6, profile of tooth combination sealing; 7-7, dredging flow groove; 7-8, O-ring seals two; 7-9, to leak; 7-10, hexagon socket head cap screw.
Detailed description of the invention:
Below in conjunction with accompanying drawing the present invention done and further explain.
As illustrated in fig. 1 and 2, digging equipment cutting mechanism forms primarily of cut axle 1 and cut casing 4, the right-hand member of cut casing 4 is connected with reducer by bolt 49, the right-hand member of reducer output and cut axle 1 passes through spline engagement, cut axle 1 is driven to rotate, the left end of cut casing 4 is arranged with connecting flange 2 free to rotate, connecting flange 2 is connected with cutterhead tail end by bolt 1, the left end of cut axle 1 is engaged with in the middle part of cutterhead by spline, drive cutterhead rotates, the middle part of cut axle 1 is arranged with end cap 5, end cap 5 is fixed by bolt 26 and cut casing 4.Cut casing 4 and cut axle 1 offer respectively water inlet 4-1 and sprue 1-1.
Embodiment one
As illustrated in fig. 1 and 2, Multi-point sealing device 7 of the present invention is arranged between cut casing 4 and cut axle 1.Multi-point sealing device 7 comprises water guide housing 7-1 and water guide cover 7-4, between the cut axle 1 that water guide cover 7-4 and water guide housing 7-1 is set in digging equipment cutting mechanism successively and cut casing 4.The left end of water guide housing 7-1 is butted on end cap 5, and the right-hand member of water guide housing 7-1 is fixed by bolt 38 and cut casing 4; The right-hand member of water guide cover 7-4 is by back-up ring 7-5 and cut axle 1 axial restraint; Free to rotate between water guide cover 7-4 and water guide housing 7-1.
Water guide housing 7-1, water guide cover 7-4 and cut axle 1 are radially throughly provided with inlet channel 7-2, and the two ends up and down of inlet channel 7-2 are communicated with the water inlet 4-1 of cut the casing 4 and sprue 1-1 of cut axle 1 respectively.Cut axle 1 in inlet channel 7-2 both sides and water guide overlap on the contact surface between 7-4 and are respectively equipped with O-ring seals one 7-3, contact surface between water guide cover 7-4 and water guide housing 7-1 in inlet channel 7-2 both sides is respectively equipped with four profile of tooth combination sealing 7-6, a dredging flow groove 7-7 is provided with away from radially through on the water guide housing 7-1 of inlet channel 7-2 side at each profile of tooth combination sealing 7-6, O-ring seals two 7-8 is equipped with away from the contact surface between the water guide housing 7-1 of inlet channel 7-2 side and cut casing 4 at inlet channel 7-2 both sides and each dredging flow groove 7-7, radially throughly on cut casing 4 be provided with four 7-9 that leak be communicated with dredging flow groove 7-7.
During the cutting mechanism work of digging equipment, between water guide housing 7-1 and cut casing 4 and water guide overlap between 7-4 and cut axle 1 be static seal, it is rotatory sealing that water guide housing 7-1 and water guide overlap between 7-4.Water under high pressure sprays from cutterhead top nozzle successively after water inlet 4-1, inlet channel 7-2, sprue 1-1 and delivery port 1-2, carries out high-pressure water jet and assists digging.Along with the continuous rotation of cut axle 1, profile of tooth combination sealing 7-6 can constantly wear and tear, and is all generally lost efficacy at first near the profile of tooth combination sealing 7-6 of inlet channel 7-2.After first profile of tooth combination sealing 7-6 lost efficacy, it is outside that the water of leakage can flow to cut casing 4 through dredging flow groove 7-7 and the 7-9 that leaks, and after finding to leak, blocks in time with the hexagonal socket head plug 7-10 7-9 that to be leaked in the road that first leaks; Sealing ring subsequently in second profile of tooth combination sealing 7-6 is out of shape aggravation because being subject to the extruding of one-sided water under high pressure, profile of tooth slip ring and cut axle 1 is held tightly, enters good rotatory sealing state.After second profile of tooth combination sealing 7-6 lost efficacy, block, until after the 4th profile of tooth combination sealing 7-6 leakage failure, whole Multi-point sealing device 7 lost efficacy with the hexagonal socket head plug 7-10 road that second leaks leaked 7-9, need to take Multi-point sealing device 7 apart, check and change associated seal.
The Multi-point sealing device 7 of embodiment one can test the effective sealing time of each profile of tooth combination sealing 7-6, in later Multi-point sealing device 7, the number of profile of tooth combination sealing 7-6 is determined to provide design considerations.
Embodiment two
As shown in figs. 1 and 3, embodiment two is with the difference of embodiment one: change the quantity of the dredging flow groove 7-7 of inlet channel 7-2 both sides and the 7-9 that leaks into one by four, dredging flow groove 7-7 is arranged on the outside of distance inlet channel 7-2 profile of tooth combination sealing 7-6 farthest.During the cutting mechanism work of digging equipment, once the 7-9 that leaks there are flowing out, show that whole Multi-point sealing device 7 lost efficacy, need check and change associated seal.
The Multi-point sealing device 7 of embodiment two is simple and reliable for structure, effectively can monitor the effective sealing time of a whole set of profile of tooth combination sealing 7-6, is applicable to digging equipment cutting mechanism additional high pressure water jet rotatory sealing in engineer applied.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a digging equipment cutting mechanism additional high pressure water jet Multi-point sealing device, it is characterized in that: described Multi-point sealing device (7) comprises water guide housing (7-1) and water guide cover (7-4), between the cut axle (1) that described water guide cover (7-4) and water guide housing (7-1) are set in digging equipment cutting mechanism successively and cut casing (4), water guide cover (7-4) is fixed with cut axle (1), water guide housing (7-1) is fixed with cut casing (4), free to rotate between water guide cover (7-4) and water guide housing (7-1), at water guide housing (7-1), radially throughly on water guide cover (7-4) and cut axle (1) be provided with inlet channel (7-2), described inlet channel (7-2) is communicated with the water inlet (4-1) of cut casing (4) and the sprue (1-1) of cut axle (1) respectively, contact surface on the contact surface between the cut axle (1) and water guide cover (7-4) of inlet channel (7-2) both sides and between water guide cover (7-4) and water guide housing (7-1) is respectively equipped with O-ring seals one (7-3) and profile of tooth combination sealing (7-6), radially throughly on the water guide housing (7-1) of profile of tooth combination sealing (7-6) away from inlet channel (7-2) side be provided with dredging flow groove (7-7), O-ring seals two (7-8) is provided with away from the contact surface between the water guide housing (7-1) of inlet channel (7-2) side and cut casing (4) at inlet channel (7-2) both sides and dredging flow groove (7-7), cut casing (4) is provided with leak (7-9) that be communicated with described dredging flow groove (7-7), the quantity of the profile of tooth combination sealing (7-6) of the every side of described inlet channel (7-2) is at least two.
2. a kind of digging equipment cutting mechanism additional high pressure water jet Multi-point sealing device according to claim 1, is characterized in that: described in have the quantity of dredging flow groove (7-7) identical with profile of tooth combination sealing (7-6), and one_to_one corresponding.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310071638.XA CN103195423B (en) | 2013-03-06 | 2013-03-06 | Multi-point sealing apparatus for auxiliary high-pressure water jet of cutting mechanism of digging device |
| RU2015139551A RU2615546C1 (en) | 2013-03-06 | 2014-01-22 | Multipoint sealing device of auxiliary high-pressure water jet for cutting mechanism used in mining equipment |
| PCT/CN2014/071062 WO2014134981A1 (en) | 2013-03-06 | 2014-01-22 | Multipoint sealing device for auxiliary high-pressure water-jet of mining equipment cutting mechanism |
| DE112014001144.4T DE112014001144B4 (en) | 2013-03-06 | 2014-01-22 | Multipoint sealing device for a supporting high-pressure water jet in a mining device for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310071638.XA CN103195423B (en) | 2013-03-06 | 2013-03-06 | Multi-point sealing apparatus for auxiliary high-pressure water jet of cutting mechanism of digging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195423A CN103195423A (en) | 2013-07-10 |
| CN103195423B true CN103195423B (en) | 2015-05-20 |
Family
ID=48718222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310071638.XA Active CN103195423B (en) | 2013-03-06 | 2013-03-06 | Multi-point sealing apparatus for auxiliary high-pressure water jet of cutting mechanism of digging device |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN103195423B (en) |
| DE (1) | DE112014001144B4 (en) |
| RU (1) | RU2615546C1 (en) |
| WO (1) | WO2014134981A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195423B (en) * | 2013-03-06 | 2015-05-20 | 中国矿业大学 | Multi-point sealing apparatus for auxiliary high-pressure water jet of cutting mechanism of digging device |
| CN104832173A (en) * | 2015-04-07 | 2015-08-12 | 徐州徐工基础工程机械有限公司 | High-pressure water sealing device for heading machine and heading machine |
| CN105156107B (en) * | 2015-07-06 | 2017-05-17 | 中国矿业大学 | Ultrahigh-pressure rotary pulse water jet rock breaking mechanism |
| CN106640085B (en) * | 2017-02-07 | 2018-07-27 | 丰宁金龙黄金工业有限公司 | A kind of mining activities with can grooving giant |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2171765A (en) * | 1985-03-02 | 1986-09-03 | Flexibox Ltd | Rotatable fluid joint |
| CN200949467Y (en) * | 2006-09-18 | 2007-09-19 | 陈庆仁 | Digging machine internal spraying closed housing sealing automatic compensating device |
| CN102140915A (en) * | 2011-03-31 | 2011-08-03 | 安徽山河矿业装备股份有限公司 | Wet type inner spraying device of tunneling machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3232878A1 (en) * | 1982-09-02 | 1984-03-08 | Mannesmann AG, 4000 Düsseldorf | Radial rotary transmission leadthrough |
| SU1346822A1 (en) * | 1986-04-18 | 1987-10-23 | Ясиноватский Филиал По Проходческому Оборудованию Института "Гипромашобогащение" | Selective-action apparatus for sprinkling entry-driving machine |
| RU2054543C1 (en) * | 1993-03-23 | 1996-02-20 | Центральный научно-исследовательский и проектно-конструкторский институт проходческих машин и комплексов для угольной, горной промышленности и подземного строительства | Device for delivery of sprinkling fluid to drill bit of working member of continuous miner |
| RU1794U1 (en) * | 1994-11-24 | 1996-03-16 | Акционерное общество закрытого типа "Игла" | ATRAUMATIC NEEDLE |
| RU2214509C1 (en) * | 2002-02-11 | 2003-10-20 | Открытое акционерное общество "Копейский машиностроительный завод" | Actuating member of continuous miner |
| CN201148874Y (en) * | 2007-12-26 | 2008-11-12 | 三一重型装备有限公司 | Inner spray sealing device of development machine |
| CN202851002U (en) * | 2012-09-17 | 2013-04-03 | 林州重机集团股份有限公司 | Novel internal spraying water inlet mechanism of tunneling machine |
| CN103195423B (en) * | 2013-03-06 | 2015-05-20 | 中国矿业大学 | Multi-point sealing apparatus for auxiliary high-pressure water jet of cutting mechanism of digging device |
-
2013
- 2013-03-06 CN CN201310071638.XA patent/CN103195423B/en active Active
-
2014
- 2014-01-22 RU RU2015139551A patent/RU2615546C1/en not_active IP Right Cessation
- 2014-01-22 WO PCT/CN2014/071062 patent/WO2014134981A1/en active Application Filing
- 2014-01-22 DE DE112014001144.4T patent/DE112014001144B4/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2171765A (en) * | 1985-03-02 | 1986-09-03 | Flexibox Ltd | Rotatable fluid joint |
| CN200949467Y (en) * | 2006-09-18 | 2007-09-19 | 陈庆仁 | Digging machine internal spraying closed housing sealing automatic compensating device |
| CN102140915A (en) * | 2011-03-31 | 2011-08-03 | 安徽山河矿业装备股份有限公司 | Wet type inner spraying device of tunneling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014134981A1 (en) | 2014-09-12 |
| RU2615546C1 (en) | 2017-04-05 |
| DE112014001144B4 (en) | 2016-10-20 |
| DE112014001144T5 (en) | 2015-12-17 |
| CN103195423A (en) | 2013-07-10 |
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