CN102489375B - Mill feeding multi-seal system - Google Patents
Mill feeding multi-seal system Download PDFInfo
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- CN102489375B CN102489375B CN201110376451.1A CN201110376451A CN102489375B CN 102489375 B CN102489375 B CN 102489375B CN 201110376451 A CN201110376451 A CN 201110376451A CN 102489375 B CN102489375 B CN 102489375B
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- feeding
- bushing
- feed pipe
- sealing
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Abstract
The invention discloses a mill feeding multi-seal system. The mill feeding multi-seal system comprises a feeding lining. The feeding lining is connected to a feeding end cover. A large end of an inner cavity of the feeding lining is a tapered surface. The surface of a small end of the feeding lining is connected to a feeding pipe stretching into the inner cavity of the feeding lining by an adjustable pressing cap. Two sealing units are respectively arranged among the adjustable pressing cap, the feeding lining and the feeding pipe and between the adjustable pressing cap and the feeding pipe. At least one groove and a boss cooperating with a discharge end of the feeding pipe are arranged in the inner cavity of the feeding lining. The boss and the at least one groove form a labyrinth seal structure with the discharge end of the feeding pipe. The mill feeding multi-seal system has the advantages that the adjustable pressing cap can be subjected to on-line adjustment so that an asbestos filling material can be compacted continuously in mill running and thus a feeding sealing property is guaranteed; the tapered surface and the labyrinth seal structure arranged in front of an asbestos filling material sealing unit greatly reduce asbestos filling material wearing and a sealing ring sealing unit is arranged in back of the asbestos filling material sealing unit so that sealing effects are good and a feeding end sealing life is prolonged; and the frequency of mill stopping is reduced obviously so that production efficiency is improved.
Description
Technical field
The present invention relates to a kind of sealing system, especially a kind of mill feeding multi-seal system.
Background technology
At mill feeding end because material particular diameter is larger, the wearing and tearing of feed end sealing are accelerated, what application was more general at present has the sealing of stationary gland formula, insert elastic seal ring at labyrinth seal ring, and various forms installs the structure of multi-sealed circle sealing additional at material pipe feed end, not only complex structure of above structure, and all adopt and insert encapsulant and seal, along with the continuous operation of grinding machine, encapsulant can constantly wear and tear, and gland cannot be adjusted again crush online, cause sealing property degradation failure, depend on the rub proofness of encapsulant its sealing life, service life is not long, cause mill feeding end to leak out, leak powder, spillage, frequent replacing encapsulant has had a strong impact on the production efficiency of grinding machine.
Summary of the invention
The present invention is in order to make up the deficiencies in the prior art, a kind of mill feeding multi-seal system is provided, this system adopts frame for movement to stop the wearing and tearing of most of material to airtight and watertight padding from source, this performance is not subject to the impact of grinding machine length running time, enter the wearing and tearing of grind materials to encapsulant thereby greatly alleviated, extended sealing life, the replacement cycle obviously shortens.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of mill feeding multi-seal system, it comprises bushing for feeding, described bushing for feeding connects with charging end cap, the large end of bushing for feeding inner chamber is taper surface, the small end face of bushing for feeding connects by adjustable gland with stretching between the feed pipe of bushing for feeding inner chamber, and is provided with altogether two resealings between adjustable gland, bushing for feeding and feed pipe and between adjustable gland and feed pipe; The step that is provided with at least one groove in described bushing for feeding inner chamber and matches with feed pipe discharge end, described step and groove and feed pipe discharge end form labyrinth seal.
The small end face of described bushing for feeding is provided with the hole entering for feed pipe, and the outer rim in hole is provided with V-shaped groove.
Described adjustable gland connects with bushing for feeding small end face outside by adjusting bolt, and pressure-adjustable covers and is provided with the inclined-plane matching with the V-shaped groove on bushing for feeding, and the endoporus passing for feed pipe, and the inwall of endoporus is provided with at least one rectangular loop groove.
Between the endoporus of described adjustable gland and feed pipe, gap is not more than 5mm.
Described adjustable gland is pressed into and coordinates for matched in clearance with bushing for feeding.
Described double sealing comprises between the V-shaped groove of bushing for feeding, inclined-plane that pressure-adjustable covers and feed pipe and sealing by asbestos packing, and between the rectangular loop groove of adjustable gland and feed pipe, adopts sealing ring sealing.
Between described bushing for feeding step and feed pipe end face and the gap of feed pipe cylindrical and bushing for feeding inner chamber parallel-segment is all not more than 10mm.
The multi-sealed groove by bushing for feeding inner chamber of the present invention and step and feed pipe discharge end form labyrinth seal, and the sealing ring between asbestos packing sealing and adjustable gland and feed pipe between adjustable gland and bushing for feeding and feed pipe seals adjustable gland and connects with bushing for feeding and can adjust online crush by adjusting bolt.Bushing for feeding is for optimizing structure, and the large end of inner chamber is taper surface, and its inner chamber comprises a step and at least one groove, and forms labyrinth seal with feed pipe.The end face and the cylindrical gap that between described bushing for feeding step and feed pipe, form are not more than 10mm.Asbestos packing sealing can constantly be adjusted online bolt and advance adjustable gland to compress asbestos packing assurance sealing, and adjustment amount is greater than 5mm.Adjustable gland is pressed into and coordinates for matched in clearance with bushing for feeding; Adjustable gland is pressed into end face and offers an inclined-plane, and the cannelure that a cross section is rectangle is at least offered in hole therein, and inclined-plane compresses asbestos packing, and rectangular channel indentation sealing circle has formed sealing ring sealing; Between adjustable gland endoporus and feed pipe, gap is not more than 5mm.
Beneficial effect of the present invention: the present invention has adopted adjustable gland to adjust online can constantly compress asbestos packing and guarantee feeding seal performance in the non-stop-machine situation of grinding machine; In the present invention, the large end of bushing for feeding inner chamber is the labyrinth seal forming between pyramidal structure and bushing for feeding and feed pipe; greatly alleviate and entered the wearing and tearing of grind materials to asbestos packing sealing and sealing ring sealing; asbestos packing sealing adopts adjustable gland to be in operation and constantly adjusts online crush; add sealing ring sealing; good seal performance; its sealing replacement cycle is obviously elongated; greatly improve feed end and sealed service life; the shutdown number of times that grinding machine causes because feeding seal is bad is obviously reduced, improved the production efficiency of grinding machine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is feed pipe cutaway view of the present invention;
Fig. 3 is I enlarged drawing in Fig. 1 of the present invention;
Fig. 4 is bushing for feeding cutaway view of the present invention;
Fig. 5 is adjustable gland cutaway view of the present invention;
Wherein, 1, charging end cap, 2, bushing for feeding, 3, asbestos packing, 4, sealing ring, 5, adjustable gland, 6, bolt, 7, packing ring, 8, feed pipe, 9. matched in clearance, 10. taper surface, 11. steps, 12. grooves, 13.V shape groove, 14. rectangular loop grooves, 15. inclined-planes.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As Figure 1-Figure 5, a kind of mill feeding multi-seal system, it comprises bushing for feeding 2, bushing for feeding 2 is connected by bolt and charging end cap 1, the large end of bushing for feeding 2 inner chamber is taper surface 10, the step 11 of bushing for feeding 2 inner chambers and groove 12 form labyrinth seal with end face and the periphery of feed pipe 8 discharge ends, in the V-shaped groove 13 of bushing for feeding 2 outer ends, insert asbestos packing 3, the inclined-plane 15 being pressed on end face by adjustable gland 5 compresses asbestos packing 3, by tight a bolt 6 and packing ring 7 advance adjustable gland 5 can constantly compress online asbestos packing 3, offer rectangular loop groove 14 at adjustable gland 5 endoporus, indentation sealing circle 4 forms sealing ring sealing.
With shown in Fig. 3, Fig. 4, end face and the circumferential clearance of feed pipe 8 discharge ends after step 11 and the processing of bushing for feeding 2 are not more than 10mm as shown in Figure 1, Figure 2; Adjustable gland 5 capable of regulating amounts are greater than 5mm, and being pressed into end is matched in clearance 9 with coordinating of bushing for feeding 2; Gap between the endoporus of adjustable gland 5 and feed pipe 8 is not more than 5mm.
Claims (5)
1. a mill feeding multi-seal system, it comprises bushing for feeding, described bushing for feeding connects with charging end cap, the large end of bushing for feeding inner chamber is taper surface, the small end face of bushing for feeding connects by adjustable gland with stretching between the feed pipe of bushing for feeding inner chamber, it is characterized in that, between described adjustable gland, bushing for feeding and feed pipe and between adjustable gland and feed pipe, be provided with altogether two resealings; The step that is provided with at least one groove in described bushing for feeding inner chamber and matches with feed pipe discharge end, described step and groove and feed pipe discharge end form labyrinth seal;
Described adjustable gland is pressed into and coordinates for matched in clearance with bushing for feeding;
Between described bushing for feeding step and feed pipe end face and the gap of feed pipe cylindrical and bushing for feeding inner chamber parallel-segment is all not more than 10mm.
2. the system as claimed in claim 1, is characterized in that, the small end face of described bushing for feeding is provided with the hole entering for feed pipe, and the outer rim in hole is provided with V-shaped groove.
3. system as claimed in claim 2, it is characterized in that, described adjustable gland connects with bushing for feeding small end face outside by adjusting bolt, pressure-adjustable covers and is provided with the inclined-plane matching with the V-shaped groove on bushing for feeding, and the endoporus passing for feed pipe, the inwall of endoporus is provided with at least one rectangular loop groove.
4. system as claimed in claim 3, is characterized in that, between the endoporus of described adjustable gland and feed pipe, gap is not more than 5mm.
5. system as claimed in claim 4, it is characterized in that, described double sealing comprises between the V-shaped groove of bushing for feeding, inclined-plane that pressure-adjustable covers and feed pipe and sealing by asbestos packing, and between the rectangular loop groove of adjustable gland and feed pipe, adopts sealing ring sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110376451.1A CN102489375B (en) | 2011-11-23 | 2011-11-23 | Mill feeding multi-seal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110376451.1A CN102489375B (en) | 2011-11-23 | 2011-11-23 | Mill feeding multi-seal system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102489375A CN102489375A (en) | 2012-06-13 |
| CN102489375B true CN102489375B (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110376451.1A Active CN102489375B (en) | 2011-11-23 | 2011-11-23 | Mill feeding multi-seal system |
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| CN (1) | CN102489375B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109300627A (en) * | 2018-10-29 | 2019-02-01 | 沈阳伊思特机器人自动化科技有限公司 | A kind of BTTZ cable interior insulation powder feeding device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586725A (en) * | 2004-08-27 | 2005-03-02 | 北京国电龙源环保工程有限公司 | Wet ball mill inlet radial sealing device |
| CN1810380A (en) * | 2006-02-28 | 2006-08-02 | 沈阳重型机械集团有限责任公司 | Feeding pipe and shaft united sealing unit for mill |
| CN101469772A (en) * | 2007-12-29 | 2009-07-01 | 中信重工机械股份有限公司 | Adjustable non-contact sealing arrangement used on large-sized grinder main bearing |
| CN201768588U (en) * | 2010-07-27 | 2011-03-23 | 四川矿山机器（集团）有限责任公司 | Sealing device for ball mill |
| CN202398411U (en) * | 2011-11-23 | 2012-08-29 | 济南重工股份有限公司 | Feeding multiple-sealing system for milling machine |
-
2011
- 2011-11-23 CN CN201110376451.1A patent/CN102489375B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586725A (en) * | 2004-08-27 | 2005-03-02 | 北京国电龙源环保工程有限公司 | Wet ball mill inlet radial sealing device |
| CN1810380A (en) * | 2006-02-28 | 2006-08-02 | 沈阳重型机械集团有限责任公司 | Feeding pipe and shaft united sealing unit for mill |
| CN101469772A (en) * | 2007-12-29 | 2009-07-01 | 中信重工机械股份有限公司 | Adjustable non-contact sealing arrangement used on large-sized grinder main bearing |
| CN201768588U (en) * | 2010-07-27 | 2011-03-23 | 四川矿山机器（集团）有限责任公司 | Sealing device for ball mill |
| CN202398411U (en) * | 2011-11-23 | 2012-08-29 | 济南重工股份有限公司 | Feeding multiple-sealing system for milling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102489375A (en) | 2012-06-13 |
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Denomination of invention: A Multiple Sealing System for Mill Feed Effective date of registration: 20230324 Granted publication date: 20140709 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: JINAN HEAVY MACHINERY JOINT-STOCK Co.,Ltd. Registration number: Y2023980035835 |