CN201771500U - Dustproof sealing structure - Google Patents
Dustproof sealing structure Download PDFInfo
- Publication number
- CN201771500U CN201771500U CN2010202766012U CN201020276601U CN201771500U CN 201771500 U CN201771500 U CN 201771500U CN 2010202766012 U CN2010202766012 U CN 2010202766012U CN 201020276601 U CN201020276601 U CN 201020276601U CN 201771500 U CN201771500 U CN 201771500U
- Authority
- CN
- China
- Prior art keywords
- dust
- sealing structure
- ring
- dustproof
- proof sealing
- 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.)
- Expired - Fee Related
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to equipment for a coal mine excavator, in particular to a dustproof sealing structure, which is arranged in an inner cavity at the rear end of a cutting head in a cutting part of the excavator, and is positioned between the cutting head and a telescopic part of the excavator capable of rotating relative to each other. The dustproof sealing structure is provided with a spacing sleeve, a dustproof ring, grease, a spacing ring and a packing dustproof seal, wherein both the dustproof ring in the inner layer and the grease in the outer layer are arranged between the spacing sleeve and the spacing ring; and the packing dustproof seal is arranged on the outer side of the spacing ring. As a multiple dustproof structure is formed by using the packing dustproof seal, the sealing grease as well as the dustproof ring, the dustproof sealing structure provided by the utility model can solve the problem that sundries like coal blocks enter the telescopic part through the rear end of the cutting head to damage or invalidate a float seal and to cause oil leakage.
Description
Technical field
The utility model relates to coal mine development machine equipment, is specially a kind of dust-proof sealing structure.
Background technology
Development machine equipment is a kind of capital equipment that the tunnel exploitation is carried out in the colliery, integrates the underworkings speedy drivage equipment of adopting, collect, transporting in the tunnel.Wherein, the cutting units that plays the collection effect is made up of cutterhead, pars contractilis, cut reductor, cutting motor.In the process of development machine work, rotation by cutterhead comes broken coal petrography, and cutterhead and pars contractilis partly exist and relatively rotate, when cutterhead is worked, foreign material such as coal petrography can enter in the pars contractilis by the cutterhead rear end, damage the floating seal of pars contractilis inside easily and cause the cutting units leakage of oil.
The utility model content
The purpose of this utility model is that by a kind of dust-proof sealing structure foreign material such as the coal petrography that can prevent dust enter by the cutterhead rear end and cause floating seal to damage inefficacy in the pars contractilis, problems such as leakage of oil occur.
The technical solution of the utility model is:
A kind of dust-proof sealing structure, this dust-proof sealing structure is provided with spacer, dust ring, grease, spacer ring, packing dust seal, and dust ring, grease all are arranged between spacer and the spacer ring, and dust ring is at internal layer, grease is at skin, at the arranged outside packing dust seal of spacer ring.
Described dust-proof sealing structure, this dust-proof sealing structure are arranged in the inner chamber of cutterhead rear end of tunneling machine cutting portion, have position between relatively rotating in the cutterhead of development machine and pars contractilis.
Described dust-proof sealing structure, the spacer and the cutting head of roadheader of this dust-proof sealing structure compress by dust ring.
Described dust-proof sealing structure, the packing dust seal arranged outside gland of this dust-proof sealing structure, gland is by the end of screw at cutterhead.
The beneficial effects of the utility model are:
Dust-proof sealing structure of the present utility model is made of spacer, dust ring, grease, spacer ring, packing dust seal and gland in the inner chamber of the cutterhead rear end of tunneling machine cutting portion.This dust-proof sealing structure utilizes packing dust seal, seal grease and dust ring to form multiple dustproof construction, prevents that foreign material such as coal petrography from entering cutterhead inside, thereby causes the floating seal of tunneling machine cutting portion to damage and leakage of oil occurs.
Description of drawings
Fig. 1 is the utility model dust-proof sealing structure master sectional view.
Among the figure, 1, cutterhead; 2, spacer; 3, dust ring; 4, grease; 5, spacer ring; 6, packing dust seal; 7, gland; 8, screw; 9, pars contractilis.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, the utility model dust-proof sealing structure is arranged in the inner chamber of cutterhead rear end of tunneling machine cutting portion, in the position that the cutterhead 1 of development machine and pars contractilis 9 exist between relatively rotating, mainly comprise: spacer 2, dust ring 3, grease 4, spacer ring 5, packing dust seal 6, gland 7 and screw 8 etc., its concrete structure is as follows:
Set gradually spacer 2, dust ring 3, grease 4, spacer ring 5 and packing dust seal 6 between the step place of cutterhead 1 rear end (needing dustproof one end) inwall and the pars contractilis 9, dust ring 3, grease 4 are arranged at all that (dust ring 3 is at internal layer between spacer 2 and the spacer ring 5, grease 4 is at skin), spacer 2 compresses by dust ring 3 with cutterhead 1, arranged outside packing dust seal 6 at spacer ring 5, at the arranged outside gland 7 of packing dust seal 6, gland 7 is fixed on an end of cutterhead 1 by screw 8.
Claims (4)
1. dust-proof sealing structure, it is characterized in that: this dust-proof sealing structure is provided with spacer, dust ring, grease, spacer ring, packing dust seal, and dust ring, grease all are arranged between spacer and the spacer ring, and dust ring is at internal layer, grease is at skin, at the arranged outside packing dust seal of spacer ring.
2. according to the described dust-proof sealing structure of claim 1, it is characterized in that: this dust-proof sealing structure is arranged in the inner chamber of cutterhead rear end of tunneling machine cutting portion, has position between relatively rotating in the cutterhead of development machine and pars contractilis.
3. according to the described dust-proof sealing structure of claim 2, it is characterized in that: the spacer and the cutting head of roadheader of this dust-proof sealing structure compress by dust ring.
4. according to the described dust-proof sealing structure of claim 2, it is characterized in that: the packing dust seal arranged outside gland of this dust-proof sealing structure, gland is by the end of screw at cutterhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202766012U CN201771500U (en) | 2010-07-30 | 2010-07-30 | Dustproof sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202766012U CN201771500U (en) | 2010-07-30 | 2010-07-30 | Dustproof sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201771500U true CN201771500U (en) | 2011-03-23 |
Family
ID=43751345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202766012U Expired - Fee Related CN201771500U (en) | 2010-07-30 | 2010-07-30 | Dustproof sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201771500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691501A (en) * | 2012-06-14 | 2012-09-26 | 三一重型装备有限公司 | Tunneling machine and cutting part thereof |
| CN107842366A (en) * | 2017-10-09 | 2018-03-27 | 中国神华能源股份有限公司 | A kind of dust-proof driving system in driving face |
-
2010
- 2010-07-30 CN CN2010202766012U patent/CN201771500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691501A (en) * | 2012-06-14 | 2012-09-26 | 三一重型装备有限公司 | Tunneling machine and cutting part thereof |
| CN107842366A (en) * | 2017-10-09 | 2018-03-27 | 中国神华能源股份有限公司 | A kind of dust-proof driving system in driving face |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20140730 |
|
| EXPY | Termination of patent right or utility model |