CN205253303U - Compound sealing device of coal pulverizer pull rod - Google Patents
Compound sealing device of coal pulverizer pull rod Download PDFInfo
- Publication number
- CN205253303U CN205253303U CN201520894189.3U CN201520894189U CN205253303U CN 205253303 U CN205253303 U CN 205253303U CN 201520894189 U CN201520894189 U CN 201520894189U CN 205253303 U CN205253303 U CN 205253303U
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- Prior art keywords
- pull rod
- utility
- sealed piece
- model
- tearing
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Abstract
The utility model discloses a compound sealing device of coal pulverizer pull rod relates to buggy processing equipment field. The utility model discloses a pull rod with set up the sealed piece on the pull rod, sealed piece is the round platform annular, and upper and lower diameter and internal diameter are than being 7: 8: 5, be equipped with round packing groove on the sealed piece inner wall intermediate position, the packing inslot is filled there is sealing material graphite packing. The utility model discloses the beneficial effect who reaches does: the principle is simple, and the simple installation only through increase round graphite packing on former sealed piece, just can improve sealing device's persistence and tightness, and is of the younger generation to continuing sealed effect in the sealed piece wearing and tearing of rigidity, avoids sealed piece wearing and tearing to produce and causes behind the gap pull rod department to leak out, leaks the problem of powder, prevents the pull rod wearing and tearing, and the unit moves stably, has increased the maintenance cycle of equipment.
Description
Technical field
The utility model relates to coal dust process equipment field, is specifically related to a kind of coal grinding machine tie-rod composite seal device.
Background technology
Coal pulverizer is by coal crusher and wears into the machinery of coal dust, and it is the important auxiliary equipment of coal-powder boiler. Existing tie-rod sealing is pure rigid seal, the drawback that pure rigid seal piece exists is after sealing block wearing and tearing and produces gap between pull bar, easily cause this place poorly sealed, sealing effectiveness is poor, makes pull bar heavy wear, diameter diminishes, intensity step-down, causes the pull bar place leakage powder that leaks out, and causes unit operation unstable, vibration strengthens, and causes the damage of miscellaneous part.
Utility model content
Technical problem to be solved in the utility model is to provide one makes tie-rod sealing performance good, a kind of coal grinding machine tie-rod composite seal device using steady in a long-term.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of coal grinding machine tie-rod composite seal device, comprises pull bar and is arranged at the sealing block on pull bar, it is characterized in that: described sealing block is round platform annular, inwall centre position is provided with a circle packing groove, in packing groove, is filled with encapsulant.
Further technical scheme is: the upper and lower diameter of described sealing block and internal diameter are than being 7:8:5.
Further technical scheme is: described encapsulant is graphite packing.
The beneficial effect that adopts technique scheme to produce is:
Principle is simple, simple installation, only by increase by a circle graphite packing on former sealing block, just can improve persistence and the tightness of sealing device, after the wearing and tearing of rigid seal piece, play the effect that continues sealing, avoid causing pull bar place to leak out, leak the problem of powder behind sealing block wearing and tearing generation gap, prevent pull bar wearing and tearing, unit operation is stable, has increased the maintenance cycle of equipment.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model.
Wherein: 1-pull bar, 2-sealing block, 3-encapsulant.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
A lot of details are set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to the utility model intension in the situation that, and therefore the utility model is not subject to the restriction of following public specific embodiment.
As shown in Fig. 1～2, a kind of coal grinding machine tie-rod composite seal device, comprises pull bar 1 and is arranged at the sealing block 2 on pull bar 1, it is characterized in that: described sealing block 2 is round platform annular, inwall centre position is provided with a circle packing groove, is filled with encapsulant 3 in packing groove.
Further preferably be: Shang Xia 2, diameter and internal diameter are than being 7:8:5 for described sealing block, and described encapsulant is graphite packing.
The utility model principle is simple, simple installation, only by increase by a circle graphite packing on former sealing block, just can improve persistence and the tightness of sealing device, after the wearing and tearing of rigid seal piece, play the effect that continues sealing, avoid causing pull bar place to leak out, leak the problem of powder behind sealing block wearing and tearing generation gap, prevent pull bar wearing and tearing, unit operation is stable, has increased the maintenance cycle of equipment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a coal grinding machine tie-rod composite seal device, comprise pull bar (1) and be arranged at the sealing block (2) on pull bar (1), it is characterized in that: described sealing block (2) is round platform annular, and inwall centre position is provided with a circle packing groove, is filled with encapsulant (3) in packing groove.
2. a kind of coal grinding machine tie-rod composite seal device according to claim 1, is characterized in that: the upper and lower diameter of described sealing block (2) and internal diameter are than being 7:8:5.
3. a kind of coal grinding machine tie-rod composite seal device according to claim 1, is characterized in that: described encapsulant is graphite packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894189.3U CN205253303U (en) | 2015-11-11 | 2015-11-11 | Compound sealing device of coal pulverizer pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894189.3U CN205253303U (en) | 2015-11-11 | 2015-11-11 | Compound sealing device of coal pulverizer pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205253303U true CN205253303U (en) | 2016-05-25 |
Family
ID=55994855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520894189.3U Expired - Fee Related CN205253303U (en) | 2015-11-11 | 2015-11-11 | Compound sealing device of coal pulverizer pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205253303U (en) |
-
2015
- 2015-11-11 CN CN201520894189.3U patent/CN205253303U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20211111 |