CN105546011A - Expansion sealing device - Google Patents
Expansion sealing device Download PDFInfo
- Publication number
- CN105546011A CN105546011A CN201610048157.0A CN201610048157A CN105546011A CN 105546011 A CN105546011 A CN 105546011A CN 201610048157 A CN201610048157 A CN 201610048157A CN 105546011 A CN105546011 A CN 105546011A
- Authority
- CN
- China
- Prior art keywords
- swelling
- inner core
- upper cover
- shaft shoulder
- rubber body
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
- F16F7/09—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses an expansion sealing device for guaranteeing enough positive pressure between a friction body and a cylinder body. An upper cover is arranged at the upper part of an inner cylinder; an acting rod connected with a vibration source is inserted in the upper cover; a shaft shoulder is arranged at the middle part of the inner cylinder; multiple oil passing holes are formed between the shaft shoulder and the upper cover; a rubber body is arranged out of the inner cylinder between the shaft shoulder and the upper cover; the inner wall of the rubber body is contacted with the outer wall of the inner cylinder; sealing mechanisms are respectively arranged at two ends of the rubber body, and include expansion inner sleeves and expansion outer sleeves; the expansion inner sleeves coat the rubber body, and are provided with opening grooves; the expansion outer sleeves are annular structures; inner walls of the expansion outer sleeves include mounting surfaces and conical surfaces; the expansion outer sleeve on the upper side is in threaded connection with the upper cover through the mounting surfaces; the expansion outer sleeve on the lower side is in threaded connection with the shaft shoulder through the mounting surfaces; the conical surfaces are contacted with the outer walls of the expansion inner sleeves. When the expansion sealing device is suffered from the effect of a vibration source, the friction force between the friction body and the cylinder body can be effectively increased.
Description
Technical field
The present invention relates to frcition damper technical field, the swelling seal arrangement specifically a kind of frcition damper used.
Background technique
Vibration extensively exists in multiple field.Such as, in field of machining, because vibration makes the element precision processed reduce; At building field, because natural disaster can make building be destroyed; Vibration also can bring noise, brings harm etc. to the healthy of people.Vibration has become the key factor of restriction multiple fields development, but in a lot of situation, oscillation phenomenon is again inevitable.Therefore, take rational control structure to reduce vibration most important.
Existing frcition damper working principle is mainly: by producing the effect that friction better reaches vibration damping between friction piece and cylinder body.Between friction piece and cylinder body, need enough positive pressures, between guarantee friction piece and cylinder body, produce enough frictional force.
Summary of the invention
The object of the present invention is to provide a kind of swelling seal arrangement, for ensureing positive pressure enough between friction piece and cylinder body.
The present invention solves the technological scheme that its technical problem takes: a kind of swelling seal arrangement, it is characterized in that, it comprises upper cover, inner core, rubber body, swelling inner sleeve and swelling overcoat, described inner core is hollow structure, upper cover is provided with on the top of described inner core, described upper cover realizes the sealing to inner core from top, be provided with the through hole for installing the operating bar be connected with focus in described upper cover, the shaft shoulder is provided with at the middle part of described inner core, inner tank theca between the described shaft shoulder and upper cover is provided with some oil throughs, inner core outside between the described shaft shoulder and upper cover is provided with rubber body, the inwall of described rubber body and the wall contacts of inner core, sealing mechanism is respectively equipped with at the two ends of described rubber body, described sealing mechanism comprises swelling inner sleeve and swelling overcoat, described swelling inner sleeve is enclosed within rubber body, and in swelling, cover is provided with opening slot, described swelling overcoat is loop configuration, the inwall of described swelling overcoat comprises attachment face and conical surface, the described swelling overcoat being positioned at top is threaded with upper cover by attachment face, the described swelling overcoat being positioned at below is threaded with the shaft shoulder by attachment face, the wall contacts of described conical surface and swelling inner sleeve.
Further, described inner core is cylinder-like structure.
Further, some described oil throughs are divided into many groups, and many group oil throughs axially evenly arranging along inner core, the some oil throughs often organized circumferentially evenly are arranged.
Further, the distance between the distance between the described shaft shoulder and inner core top is greater than bottom the shaft shoulder and inner core.
Further, described upper cover is threaded with inner core.
Further, described upper cover comprises setting up and down and be connected two cylindrical bodys, and the cylindrical body on top is connected with swelling sleeve thread, and the cylindrical body of bottom is threaded with inner core.
The invention has the beneficial effects as follows: a kind of swelling seal arrangement provided by the invention, the displacement at focus place passes to operating bar, the fluid of operating bar extruding inner core inside, oil liquid pressure is increased, and fluid extrudes rubber body through after oil through, rubber body is expanded, force transmission to the friction piece of rubber body outside, is made friction piece dilatancy by rubber body, and the positive pressure between such friction piece and cylinder body increases, frictional force increases, and then plays the effect of damping.
Accompanying drawing explanation
Fig. 1 is assembling schematic diagram of the present invention;
Fig. 2 is the sectional drawing of swelling inner sleeve;
Fig. 3 is the schematic diagram of swelling inner sleeve;
Fig. 4 is the sectional drawing of swelling overcoat;
Fig. 5 is the schematic diagram of swelling overcoat;
Fig. 6 is the schematic diagram of inner core;
In figure: 1 upper cover, 2 swelling overcoats, 21 inner conical surfaces, 22 attachment faces, 3 swelling inner sleeves, 31 opening slots, 4 rubber body, 5 inner cores, 51 oil throughs, 52 shaft shoulders.
Embodiment
as shown in Figures 1 to 6, the present invention mainly comprises upper cover 1, swelling overcoat 2, swelling inner sleeve 3, rubber body 4 and inner core 5, describes the present invention below in conjunction with accompanying drawing.
as Fig. 1, figureshown in 6, inner core 5 is cylinder-like structure, is provided with internal thread in the bottom of inner core, in the inner chamber of inner core, fill fluid.The outer wall of inner core is provided with some groups of oil throughs 51, and some groups of oil throughs are arranged along the axis of inner core, and the oil through 51 often organized circumferentially evenly is arranged, and the effect of oil through is used to transmit oil liquid pressure.The shaft shoulder 52 of annular is provided with at the middle part of inner core 5, distance between distance between the shaft shoulder and inner core top is greater than bottom the shaft shoulder and inner core, on inner core above the shaft shoulder, cover has rubber body 4, rubber body 4 is columnar structured, the inwall of rubber body and the wall contacts of inner core, at the outer installment friction piece of rubber body.A sealing mechanism is respectively equipped with at the two ends up and down of rubber body 4, sealing mechanism is made up of swelling inner sleeve 3 and swelling overcoat 2, swelling inner sleeve is the hollow structure of frustoconic shape, the inwall of swelling inner sleeve is cylindrical, the inwall of swelling inner sleeve and the wall contacts of rubber body, as shown in Figure 4, Figure 5, cover is provided with the opening slot 31 of a bar shaped in swelling.Swelling overcoat 2 is loop configuration, and as shown in Figure 2 and Figure 3, the inwall of swelling overcoat comprises conical surface 21 and attachment face 22, and the outer wall of swelling inner sleeve contacts with the conical surface of swelling overcoat.The attachment face of swelling overcoat is provided with internal thread, and the swelling overcoat being positioned at top is threaded with upper cover 1 by attachment face, and the swelling overcoat being positioned at below is threaded with the shaft shoulder.Upper cover comprises setting up and down and be connected two cylindrical bodys, and swelling overcoat is threaded with upper cylinder.Upper cover can be one-body molded, also can manufacture separately upper cylinder and lower cylinder, then be welded and fixed.When rotating swelling overcoat 2, swelling overcoat just and between swelling inner sleeve 3 produces pressure, because the swelling inner sleeve that exists of opening slot is shunk, and then compresses rubber body 4, makes rubber body and inner core close contact ensure good seal.
The lower cylinder of upper cover is also provided with outside thread, and the top of inner core 5 is connected with the lower thread of upper cover 1, and the axis of upper cover 1 has circular through hole and be used for installing operating bar, good seal between operating bar and upper cover, operating bar is connected with focus.The bottom of inner core can be enclosed construction, also can be uncovered structure, now be provided with booster body in the bottom of inner core, booster body can produce certain precompression to the fluid in inner core, during to ensure that operating bar moves in inner core, fluid in inner core is subject to enough pressure, now fluid is through oil through extruding rubber body, rubber body is out of shape, rubber body by force transmission to friction piece, friction piece is expanded, and the positive pressure between friction piece and cylinder body increases, and then ensures enough frictional force.
Claims (6)
1. a swelling seal arrangement, it is characterized in that, it comprises upper cover, inner core, rubber body, swelling inner sleeve and swelling overcoat, described inner core is hollow structure, upper cover is provided with on the top of described inner core, described upper cover realizes the sealing to inner core from top, be provided with the through hole for installing the operating bar be connected with focus in described upper cover, the shaft shoulder is provided with at the middle part of described inner core, inner tank theca between the described shaft shoulder and upper cover is provided with some oil throughs, inner core outside between the described shaft shoulder and upper cover is provided with rubber body, the inwall of described rubber body and the wall contacts of inner core, sealing mechanism is respectively equipped with at the two ends of described rubber body, described sealing mechanism comprises swelling inner sleeve and swelling overcoat, described swelling inner sleeve is enclosed within rubber body, and in swelling, cover is provided with opening slot, described swelling overcoat is loop configuration, the inwall of described swelling overcoat comprises attachment face and conical surface, the described swelling overcoat being positioned at top is threaded with upper cover by attachment face, the described swelling overcoat being positioned at below is threaded with the shaft shoulder by attachment face, the wall contacts of described conical surface and swelling inner sleeve.
2. a kind of swelling seal arrangement according to claim 1, is characterized in that, described inner core is cylinder-like structure.
3. a kind of swelling seal arrangement according to claim 1, is characterized in that, some described oil throughs are divided into many groups, and many group oil throughs axially evenly arranging along inner core, the some oil throughs often organized circumferentially evenly are arranged.
4. a kind of swelling seal arrangement according to claim 1, is characterized in that, the distance between the distance between the described shaft shoulder and inner core top is greater than bottom the shaft shoulder and inner core.
5. a kind of swelling seal arrangement according to claim 1, it is characterized in that, described upper cover is threaded with inner core.
6. a kind of swelling seal arrangement according to claim 1, is characterized in that, described upper cover comprises setting up and down and be connected two cylindrical bodys, and the cylindrical body on top is connected with swelling sleeve thread, and the cylindrical body of bottom is threaded with inner core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048157.0A CN105546011A (en) | 2016-01-26 | 2016-01-26 | Expansion sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048157.0A CN105546011A (en) | 2016-01-26 | 2016-01-26 | Expansion sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105546011A true CN105546011A (en) | 2016-05-04 |
Family
ID=55825441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610048157.0A Pending CN105546011A (en) | 2016-01-26 | 2016-01-26 | Expansion sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546011A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1122190A (en) * | 1965-02-03 | 1968-07-31 | Caterpillar Tractor Co | Vehicle suspension strut |
| CN102261423A (en) * | 2011-04-28 | 2011-11-30 | 济南大学 | Self-feedback control friction damper |
| CN203189600U (en) * | 2013-03-14 | 2013-09-11 | 济南大学 | Ball reinforcement friction damper |
| CN103821872A (en) * | 2014-03-17 | 2014-05-28 | 济南大学 | Novel friction damper |
| CN203685969U (en) * | 2014-01-25 | 2014-07-02 | 济南大学 | Novel reinforcement friction damper |
| CN205371430U (en) * | 2016-01-26 | 2016-07-06 | 济南大学 | Tight sealing device expands |
-
2016
- 2016-01-26 CN CN201610048157.0A patent/CN105546011A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1122190A (en) * | 1965-02-03 | 1968-07-31 | Caterpillar Tractor Co | Vehicle suspension strut |
| CN102261423A (en) * | 2011-04-28 | 2011-11-30 | 济南大学 | Self-feedback control friction damper |
| CN203189600U (en) * | 2013-03-14 | 2013-09-11 | 济南大学 | Ball reinforcement friction damper |
| CN203685969U (en) * | 2014-01-25 | 2014-07-02 | 济南大学 | Novel reinforcement friction damper |
| CN103821872A (en) * | 2014-03-17 | 2014-05-28 | 济南大学 | Novel friction damper |
| CN205371430U (en) * | 2016-01-26 | 2016-07-06 | 济南大学 | Tight sealing device expands |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102108991B (en) | Hydraulic cylinder, hydraulic buffer system, excavator and concrete pump truck | |
| CN102678987A (en) | Seawater hydraulic overflow valve | |
| CN105114513B (en) | Speed and displacement dual-lock pressure-limiting type viscous damper | |
| CN104595281A (en) | Cushion cylinder | |
| CN101865178A (en) | Two-stage hydraulic cylinder | |
| JP2017057878A (en) | Shock absorber | |
| CN106015439A (en) | Large-load and low-rigidity speed type limiting device | |
| CN105526296A (en) | Novel friction damper | |
| CN102454650B (en) | Hydraulic differential pilot opening mechanism | |
| CN104006023B (en) | One utilizes gap sealed plunger case | |
| CN104455184A (en) | Motorcycle inversed type front damper | |
| CN105782331A (en) | Heavy-duty damper for heavy industries and roads | |
| CN105673758A (en) | Gas supplementing type gas spring | |
| CN105546011A (en) | Expansion sealing device | |
| CN105840713A (en) | Damper with viscous-friction combined action | |
| CN205371430U (en) | Tight sealing device expands | |
| JP2014513007A (en) | In particular, a master cylinder for controlled brake devices | |
| CN108032999A (en) | A kind of undercarriage buffer unit | |
| CN204921827U (en) | Speed displacement twin -lock voltage limiting formula viscous damper | |
| CN104632486B (en) | For the control valve of fuel injector | |
| CN205331302U (en) | Novel friction damper | |
| CN110374220B (en) | Viscous damper | |
| CN105782322A (en) | High-stability piston structure for mechanical equipment damper | |
| CN203516290U (en) | Hydraulic oil cylinder provided with buffer device | |
| KR101400793B1 (en) | Viscous damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |
|
| WD01 | Invention patent application deemed withdrawn after publication |