Circular packing for rotating shaft

专利摘要:
Seal for the purpose of carrying a rotating shaft throught a wall and which comprises a rotating seal ring and a stationary seal ring abutting thereagainst, whereof one has been connected with the shaft and the other with the wall and whereof one is located at the end of a rubber bellows producing an axial sealing pressure. Within the wall of the rubber bellows there is at least one metal pin, which is positioned obliquely with reference to the shaft.
公开号:SU795515A3
申请号:SU772478304
申请日:1977-05-03
公开日:1981-01-07
发明作者:Лунд Рольф
申请人:Ой Е.Сарлин Аб (Фирма)；
IPC主号:

专利说明:

The invention relates to a sealing technique and can be used to seal rotary knives. The preferred field of application of NIN inventions are submersible pumps, in which the task is to separate two liquids, such as water and oil. The following (; loose O-rings for rotating shafts containing a pair of rings, frictional contact between which is provided by a pressure bellows element. A single-sided rotation hyperboloid l can be used as this element. The bellows element serves as a pressure element and sealing between the shaft and the ring The reliability of its operation is not ensured in the known seals, since the performance of the bellows is sufficiently rigid leads to the loss of its useful properties, for example, resistance to twisting forces, The insertion of a spring spring leads to a complex structure that limits the possible applications of such seals. The aim of the invention is to increase the reliability of the seal and expand its area of application. This is achieved by using metal fingers placed inside the strong element; with respect to the axis of the element, predominantly along the generators of the hyperbolic shell. Due to this, a sufficiently rigid structure is obtained with respect to the torsional Entau while ensuring free movement of the bellows and its elasticity in the axial direction. FIG. 1 depicts the proposed seal; in fig. 2-section A-A of FIG. one; in fig. 3 shows an embodiment of a bellows in which the fingers are directed differently towards the wall; in fig. 4 is a view of the bellows of FIG. 3 from its end; in fig. 5 shows an embodiment of a bellows in which the fingers are connected to each other; in fig. 6 is a view of the bellows of FIG. 5 on the side of its end. The seal includes shaft 1, septum 2, liquid 3 containing impurities, oil 4, rotating ring 5 attached to the shaft, stationary
sealing ring 6, elastically inserted into it. a septum, a rubber bellows 7, the action of which creates a seal between the ring 6 and the wall 2, to apply an axial load on the ring b and to prevent rotation of the ring 6, fingers 8 and 9 fixed in rubber 7 by vulcanization, retaining ring 10 fixing screw 11.
In the drawing, the shape of the fingers between points 12 and 13 is linear and inclined with respect to the shaft 1. The rubber bellows shell is approximately the same thickness and is molded so that the fingers completely fit into the rubber, so that the rubber shell configuration is a single hyperboloid. shell. Due to this, the bellows can be made so soft that the free movement of the ring 6 can be achieved by means of a sufficiently small opposing force.
Fingers 8 and 9 provide torque transmission and support the rubber bellows in such a way that the rubber bellows can act as a means of creating an axial load for the ring b. The fingers can be mounted so that they are all tilted in the same direction as shown in FIG. 1 and 2, or tilted in different directions, as shown in FIG. 3 and 4.
//
Fig 1
The fingers can be connected in pairs to form one body, as shown in FIG. 5 and 6. The possibilities of the invention may vary, for example, the fingers may be somewhat curved, the ends of the fingers may be round, the surface of the fingers may be grooved, notched, or sandblasted so that they adhere well to the rubber.

权利要求:
Claims (1)
[1]
Invention Formula
An annular seal for a rotating shaft containing a pair of rings, the frictional contact between which is provided by a clamping bellows element, in the form of a single-sided hyperboloid of rotation, characterized by the fact that, in order to increase the reliability of compaction and expand its application area, obliquely to the axis of the perboloid gif, mainly along its generators. °
Sources of information taken into account in the examination
thirty . 1. USSR author's certificate No. 309185, cl. F 16 J 8/00, 1969.
Aa
9
2
13
2
gk
6Fig. five
13
FIG. 6

类似技术:

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公开号 | 公开日 | 专利标题

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US4283064A|1981-08-11|Rotary shaft seal

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US3117794A|1964-01-14|Shaft glands

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US2714025A|1955-07-26|Rotary seal

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CN212251130U|2020-12-29|Mechanical seal structure and hydraulic device

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SU916838A1|1982-03-30|Rotating shaft gland seal

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US1332062A|1920-02-24|Gland for packing rotating shafts

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SU388158A1|1973-06-22|SEAL OF SHAFT WITH ROTATING AND VIBRATIONAL

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US2992024A|1961-07-11|Rotary seal

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SU767849A1|1980-09-30|Sealed cable inlet

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US2424690A|1947-07-29|Shaft seal

同族专利:

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公开号 | 公开日

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FI55905C|1979-10-10|

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FI761235A|1977-11-04|

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SE428829B|1983-07-25|

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FR2350523A1|1977-12-02|

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IN146077B|1979-02-17|

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SE7705090L|1977-11-04|

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FI55905B|1979-06-29|

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DE2719169A1|1977-11-17|

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US4061345A|1977-12-06|

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FR2350523B1|1981-08-07|

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GB1552283A|1979-09-12|

---

CA1063140A|1979-09-25|

---

NL7704878A|1977-11-07|

---

ES458396A1|1978-02-16|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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US1543309A|1921-03-03|1925-06-23|Worthington Pump & Mach Corp|Shaft packing|

---

US2077954A|1936-03-13|1937-04-20|Int Harvester Co|Sealing unit for rotary shafts|

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US2512749A|1946-07-24|1950-06-27|Henrite Products Corp|Fluid sealing device|

---

US2753198A|1953-02-04|1956-07-03|Carrier Corp|Seal for a rotating shaft|

---

US3160418A|1960-04-14|1964-12-08|Barske Ulrich Max Willi|Spring-loaded seal with coaxial relatively rotating contact faces|

---

DE1247096B|1962-03-23|1967-08-10|Continental Jllinois Nat Bank|Mechanical seal|

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GB986217A|1963-02-06|1965-03-17|Crane Packing Ltd|Bellows|

---

US3165323A|1963-04-17|1965-01-12|Hamano Kiichi|Water seal for pump|

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US3370895A|1965-09-28|1968-02-27|Dresser Ind|Bearing seal for drilling bits|

---

US3975026A|1975-02-14|1976-08-17|Johns-Manville Corporation|Sealing cartridge for rotating shafts|US4440403A|1977-05-30|1984-04-03|Asahi Kogaku Kogyo Kabushiki Kaisha|Drop-proof and dust-proof device in rotary operation section of camera|

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US4330134A|1980-03-31|1982-05-18|International Harvester Company|Torque limited track pin seal|

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US4510966A|1983-03-28|1985-04-16|Garlock, Inc.|Plug valve with floating stem seal|

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GB8803832D0|1988-02-18|1988-03-16|Crane Packing Ltd|Mechanical face seals|

---

DE4225606A1|1992-08-03|1994-02-10|Skf Gmbh|Seal for water pumps|

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US6536777B2|1999-03-31|2003-03-25|Lam Research Corporation|Sealing techniques suitable for different geometries and constrained spaces|

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US8114024B2|2007-08-20|2012-02-14|Interson Corporation|Seal for a rotating shaft|

---

US7562879B1|2008-04-30|2009-07-21|Cnh America Llc|Method and apparatus for creating an auger arm and bearing seal|

法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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FI761235A|FI55905C|1976-05-03|1976-05-03|TAETNING|

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