CN201650295U - Inner spraying device for coal cutter - Google Patents
Inner spraying device for coal cutter Download PDFInfo
- Publication number
- CN201650295U CN201650295U CN2010201611438U CN201020161143U CN201650295U CN 201650295 U CN201650295 U CN 201650295U CN 2010201611438 U CN2010201611438 U CN 2010201611438U CN 201020161143 U CN201020161143 U CN 201020161143U CN 201650295 U CN201650295 U CN 201650295U
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- water
- sprayer unit
- valve body
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Abstract
The utility model relates to an inner spraying device used on the cutting part of a coal cutter, which belongs to an important constituent part of a cooling spraying system of the coal cutter and is provided with a valve body, wherein the side of the valve body is provided with a water inlet; the valve body is internally provided with a valve bush II; the water inlet and the valve bush II are communicated; the valve bush II is internally provided with a valve bush I; one end of the valve body is provided with an opening; a rotating steel tube is inserted into the valve bush I through the opening; and a high-pressure water cavity is formed between the valve bush I and the rotating steel tube. The spraying water is distributed to left and right rocker arms through a main water valve block on the coal cutter, then enters the inner spraying device to enter the rotating steel tube through an inner valve bush, and then enters a roller. The inner spraying device has the main functions of providing high-pressure water for the roller of the coal cutter, realizing water spraying of the coal cutter, and solving the problems in the prior art that the rotating joint part leaks water frequently, the sealing piece replacement is difficult and the like.
Description
Technical field
The utility model relates to a kind of inner sprayer unit that is used on the winning machine cutting part, belongs to the important component part of coal-winning machine cooling spray system, and its reliability directly influences the overall performance of coal-winning machine.The major function of this inner sprayer unit provides water under high pressure for coal mining machine roller, realizes the spraying firing dust of coal-winning machine.Simultaneously, in the swivel joint field, also can be used widely.
Background technology
Coal-winning machine is the nucleus equipment of fully-mechanized mining working, mainly finishes coal breakage and coalings.Coal-winning machine is in the coal breakage and the process of coalingging, and especially coal breakage can produce a large amount of dust.Dust directly influences coal mining driver's vision, even harm coal mining driver and other miners' health.The coal-winning machine inner sprayer unit is the important component part of cooling spray system, mainly is that water under high pressure is flowed to the cylinder nozzle reliably, sprays to form the spraying cascade.Because the spraying medium is that water and alkalescence are very big, so have stronger corrosivity.Simultaneously, because the viscosity of water is very low, be difficult for forming lubricating film.In addition, when processing and install, there are off-centre, cylinder when cut, also can produce additional off-centre owing to rotating steel pipe and seal receptacle chamber.So inner sprayer unit often damages under the effect of above reason.
Also be so in the use of reality, primary seal often occur and damage and seep water.That have even spray water occurs and enter the rocker gear chamber and make gear oil emulsification, cause the whole transmission mechanism of rocking arm to damage.
At present, the inner sprayer unit that coal-winning machine is commonly used is that primary seal adopts common lattice to enclose or water seal, and this type of seal corrosion resistance is poor, and can not self-lubricating, uses seal to be easy to lose efficacy for a long time.Do not have support ring when the rotation steel pipe produces off-centre, the annular seal space spatial volume changes along with the variation of time, and the pulsating stress additional in the lip generation of water seal produces fatigue failure.If it is excessive that offset stack excessive water seal in back or lattice enclose monolateral decrement, the aggravation wearing and tearing, another side pressure reduces to produce reveals the very fast inefficacy of seal when serious.
In addition, the inner sprayer unit structure that present coal-winning machine is used always is not independently changed and inconvenience after seal damages, and generally is to bleed off the interior gear oil of rocking arm earlier, opens seven bearing support and takes out inner sprayer unit replacing seal.And so also be easy to make impurity such as coal dust to enter gear cavity to cause gear rotten, damage transmission mechanism.
The utility model content
The purpose of this utility model is to provide a kind of inner sprayer unit that is used for coal-winning machine cooling spray system, mainly solves inner sprayer unit of the prior art and damages frequently, and changes problem such as inconvenience.It can prolong the application life of inner sprayer unit, the convenience that the raising seal is changed, and makes coal-winning machine cooling spray system more reliable.
The technical solution of the utility model is:
A kind of coal-winning machine inner sprayer unit, this device is provided with valve body, and side of valve body has water inlet, and valve pocket II is set in the valve body, and water inlet communicates with valve pocket II, establishes valve pocket I in the valve pocket II; One end of valve body is provided with opening, and the rotation steel pipe is plugged in valve pocket I by described opening.
Described coal-winning machine inner sprayer unit forms high-pressure water chamber between valve pocket I and the rotation steel pipe.
Described coal-winning machine inner sprayer unit is provided with carbon graphite seal and support ring between the end of valve pocket I and the valve pocket II and the rotation steel pipe outside, at the other end of valve pocket I by being installed on the jump ring clamping of valve pocket II inwall.
Described coal-winning machine inner sprayer unit is provided with water seal, oil sealing and spring bearing between the rotation steel pipe outside and valve interior wall.
Described coal-winning machine inner sprayer unit, the play of spring bearing adopt C2 play group.
Described coal-winning machine inner sprayer unit, the gap between the rotation steel pipe outside and valve interior wall is communicated with the leak holes on the valve body.
Described coal-winning machine inner sprayer unit, the other end of valve body is provided with end cap.
Principle of the present utility model is:
Spray water main water valve piece on coal-winning machine is distributed to left and right sides rocking arm, enters inner sprayer unit then and covers into the rotation steel pipe through inner valve, enters cylinder again, realizes spraying and cooling.The carbon graphite seal is contained on the rotation steel pipe spray water is played main sealing function, and water seal also is contained on the rotation steel pipe and plays the secondary seal effect, prevents to make gear oil emulsification because of primary seal inefficacy back cooling water enters gear cavity.Simultaneously, this device is provided with leak holes, and the spray water of leakage can freely be got rid of.Oil sealing also is contained in rotation and prevents that gear oil from entering the spraying water cavity on the steel pipe, and support ring play the guiding role to the off-centre of rotation steel pipe, can prevent that primary seal from damaging because of cylinder rotates the fluctuating load that produces.Spring bearing plays a supportive role to the rotation steel pipe, makes the rotation of steel pipe flexibility and reliability.
The beneficial effects of the utility model are:
1. the utility model inner sprayer unit primary seal has adopted the carbon graphite seal, has improved corrosion resistance, wear resistence and the self lubricity of seal, prolongs the application life of inner sprayer unit, has reduced the mechanical system fault of leaking and causing because of the primary seal damage.
2. the utility model inner sprayer unit has adopted support ring, and spring bearing adopts C2 play group, has reduced the eccentricity of rotation steel pipe, has prolonged the application life of primary seal.
3. the utility model inner sprayer unit adopts the major-minor sealing to combine, between be provided with leak holes, stopped leakage water fully and entered gear cavity, reduced the mechanical system fault.
4, valve pocket I of the present utility model, valve pocket II, together with being contained in inner seal, support ring, primary seal can freely make things convenient for taking-up in the little end caps of rear side, need not open the gear cavity of rocking arm, can also can only change seal by integral replacing, improve maintainability.
Description of drawings
Fig. 1 is the utility model inner sprayer unit structure chart.
Among the figure, 1 valve pocket I; 2 jump rings; 3 valve pocket II; 4 carbon graphite seals (primary seal); 5 support rings; 6 rotation steel pipes; 7 water seals; 8 oil sealings; 9 spring bearings; 10 valve bodies; 11 water inlets; 12 openings; 13 high-pressure water chambers; 14 end caps; 15 leaks.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in Figure 1, the utility model inner sprayer unit mainly comprises: rotation steel pipe 6, spring bearing 9, oil sealing 8, water seal 7, support ring 5, carbon graphite seal 4 and valve pocket I1, valve pocket II3 and valve body 10 etc., and concrete structure is as follows:
The side of valve body 10 has water inlet 11, and valve pocket II3 is set in the valve body 10, and water inlet 11 communicates with valve pocket II3, establishes valve pocket I1 in the valve pocket II3; One end of valve body 10 is provided with opening 12, and rotation steel pipe 6 is plugged in valve pocket I1 by opening 12, forms high-pressure water chamber 13 between valve pocket I1 and the rotation steel pipe 6;
Between the end of valve pocket I1 and the valve pocket II3 and rotation steel pipe 6 outsides, be provided with carbon graphite seal 4 and support ring 5, at the other end of valve pocket I1 by being installed on jump ring 2 clampings of valve pocket II3 inwall;
Be provided with water seal 7, oil sealing 8 and spring bearing 9 between rotation steel pipe 6 outsides and valve body 10 inwalls, the play of spring bearing 9 adopts C2 play group.
Gap between rotation steel pipe 6 outsides and valve body 10 inwalls is communicated with the leak holes 15 on the valve body 10, and the spray water of leakage can freely be got rid of.
The other end of valve body 10 is provided with end cap 14, and valve pocket I1, valve pocket II3, carbon graphite seal 4, support ring 5 can freely make things convenient for taking-up by the wire drawing on the valve pocket I1, need not open the gear cavity of rocking arm.Can integral replacing if carbon graphite seal 4 damages, also can continue to pull down valve pocket I1, jump ring 2, only change carbon graphite seal 4 then.
Spray water is entered by valve body 10, enters high-pressure water chamber 13 through valve pocket I1, valve pocket II3, enters coal mining machine roller through rotation steel pipe 6 then, by the nozzle ejection that is contained on the cylinder.Respectively be provided with O type circle before and after valve pocket I1, the valve pocket II3 and prevent the spray water seepage.Carbon graphite seal 4 main starting sealing functions make water under high pressure directly enter rotation steel pipe 6, and 5 pairs of carbon graphite seals 4 of support ring shield.Water seal 7 prevents that 4 damages of carbon graphite seal from causing water to enter gear cavity, plays the second class protection effect; Oil sealing 8 plays the oil sealing effect to be separated oil pocket and water cavity fully, and spring bearing 9 guarantees the personal rotation of steel pipe.
Claims (8)
1. coal-winning machine inner sprayer unit, it is characterized in that: this device is provided with valve body, and side of valve body has water inlet, and valve pocket II is set in the valve body, and water inlet communicates with valve pocket II, establishes valve pocket I in the valve pocket II; One end of valve body is provided with opening, and the rotation steel pipe is plugged in valve pocket I by described opening.
2. according to the described coal-winning machine inner sprayer unit of claim 1, it is characterized in that: form high-pressure water chamber between valve pocket I and the rotation steel pipe.
3. according to the described coal-winning machine inner sprayer unit of claim 1, it is characterized in that: between the end of valve pocket I and the valve pocket II and the rotation steel pipe outside, be provided with primary seal and support ring, at the other end of valve pocket I by being installed on the jump ring clamping of valve pocket II inwall.
4. according to the described coal-winning machine inner sprayer unit of claim 3, it is characterized in that: primary seal is the carbon graphite seal.
5. according to the described coal-winning machine inner sprayer unit of claim 3, it is characterized in that: between the rotation steel pipe outside and valve interior wall, be provided with water seal, oil sealing and spring bearing.
6. according to the described coal-winning machine inner sprayer unit of claim 5, it is characterized in that: the play of spring bearing adopts C2 play group.
7. according to the described coal-winning machine inner sprayer unit of claim 3, it is characterized in that: the gap between the rotation steel pipe outside and valve interior wall is communicated with the leak holes on the valve body.
8. according to the described coal-winning machine inner sprayer unit of claim 1, it is characterized in that: the other end of valve body is provided with end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201611438U CN201650295U (en) | 2010-04-16 | 2010-04-16 | Inner spraying device for coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201611438U CN201650295U (en) | 2010-04-16 | 2010-04-16 | Inner spraying device for coal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650295U true CN201650295U (en) | 2010-11-24 |
Family
ID=43115529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201611438U Expired - Fee Related CN201650295U (en) | 2010-04-16 | 2010-04-16 | Inner spraying device for coal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650295U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200089A (en) * | 2011-04-21 | 2011-09-28 | 三一重型装备有限公司 | Shearer and water treatment system thereof |
| CN102996128A (en) * | 2012-11-19 | 2013-03-27 | 重庆松藻煤电有限责任公司 | Spraying device in coal mining machine |
| CN103133000A (en) * | 2013-03-01 | 2013-06-05 | 郑州四维机电设备制造有限公司 | Coal cutter gas-water mixing external spray system |
| CN103291299A (en) * | 2013-06-25 | 2013-09-11 | 三一重型装备有限公司 | Coal mining machine and inner spraying device thereof |
| CN104295299A (en) * | 2014-10-17 | 2015-01-21 | 山西潞安矿业(集团)有限责任公司 | Internal spraying system of tunneling machine |
| CN108087557A (en) * | 2017-12-07 | 2018-05-29 | 张文涛 | A kind of sealed coalcutter internal spraying oil isolated from water rotary sealing system of multi-stage mechanical |
| CN109915136A (en) * | 2019-04-10 | 2019-06-21 | 佳木斯智研矿山机械有限公司 | Cutting inner sprayer unit and winning machine cutting part |
-
2010
- 2010-04-16 CN CN2010201611438U patent/CN201650295U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200089A (en) * | 2011-04-21 | 2011-09-28 | 三一重型装备有限公司 | Shearer and water treatment system thereof |
| CN102200089B (en) * | 2011-04-21 | 2012-10-10 | 三一重型装备有限公司 | Shearer and water treatment system thereof |
| CN102996128A (en) * | 2012-11-19 | 2013-03-27 | 重庆松藻煤电有限责任公司 | Spraying device in coal mining machine |
| CN102996128B (en) * | 2012-11-19 | 2015-05-13 | 重庆松藻煤电有限责任公司 | Spraying device in coal mining machine |
| CN103133000A (en) * | 2013-03-01 | 2013-06-05 | 郑州四维机电设备制造有限公司 | Coal cutter gas-water mixing external spray system |
| CN103291299A (en) * | 2013-06-25 | 2013-09-11 | 三一重型装备有限公司 | Coal mining machine and inner spraying device thereof |
| CN104295299A (en) * | 2014-10-17 | 2015-01-21 | 山西潞安矿业(集团)有限责任公司 | Internal spraying system of tunneling machine |
| CN108087557A (en) * | 2017-12-07 | 2018-05-29 | 张文涛 | A kind of sealed coalcutter internal spraying oil isolated from water rotary sealing system of multi-stage mechanical |
| CN109915136A (en) * | 2019-04-10 | 2019-06-21 | 佳木斯智研矿山机械有限公司 | Cutting inner sprayer unit and winning machine cutting part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Granted publication date: 20101124 Termination date: 20140416 |