CN205371430U - Tight sealing device expands - Google Patents
Tight sealing device expands Download PDFInfo
- Publication number
- CN205371430U CN205371430U CN201620070108.2U CN201620070108U CN205371430U CN 205371430 U CN205371430 U CN 205371430U CN 201620070108 U CN201620070108 U CN 201620070108U CN 205371430 U CN205371430 U CN 205371430U
- Authority
- CN
- China
- Prior art keywords
- swelling
- upper cover
- inner core
- overcoat
- shaft shoulder
- 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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- Sealing Devices (AREA)
Abstract
The utility model provides a tight sealing device expands for guarantee sufficient normal pressure between friction piece and the cylinder body. Be equipped with the upper cover on the upper portion of inner tube, wear the pole that actuates that links to each other with the seismic source in the upper cover, middle part at the inner tube is equipped with the shaft shoulder, be equipped with a plurality of oil throughs between the shaft shoulder and upper cover, inner tube outside between the shaft shoulder and upper cover is equipped with the rubber body, the inner wall of the rubber body and the outer wall contact of inner tube, both ends at the rubber body are equipped with sealing mechanism respectively, sealing mechanism is including the tight endotheca and the tight overcoat that expands of expanding, expand tight interior ways on the rubber body, and be equipped with the open slot expanding to put in tight, the tight overcoat that expands is the loop configuration, the inner wall of bloated tight overcoat is including installation face and taper surface, the bloated tight overcoat that is located the top is through installation face and upper cover threaded connection, be located the below the tight overcoat that expands passes through to install face and shaft shoulder threaded connection, and the taper surface contacts with the outer wall of bloated tight endotheca. The utility model discloses the time spent is done receiving the seismic source, the frictional force between friction piece and the cylinder body can be effectively increased.
Description
Technical field
This utility model relates to frcition damper technical field, the swelling sealing device specifically used on a kind of frcition damper.
Background technology
Vibration is widely present in multiple field.Such as, in field of machining, owing to vibration makes the element precision processed reduce；At building field, owing to natural disaster can make building be destroyed；Vibration also can bring noise, and healthy to people brings harm etc..Vibration has become as the key factor restricting the development of multiple fields, but, in a lot of situations, oscillation phenomenon is again inevitable.Therefore, rational control structure is taked to reduce vibration most important.
Existing frcition damper operation principle is mainly: frictionally produces friction between body and cylinder body and better reaches the effect of vibration damping.Between friction piece and cylinder body, need enough normal pressures, between guarantee friction piece and cylinder body, produce enough frictional force.
Summary of the invention
The purpose of this utility model is in that to provide a kind of swelling sealing device, for ensureing normal pressure enough between friction piece and cylinder body.
The technical scheme in the invention for solving the technical problem is: a kind of swelling sealing device, it is characterized in that, it includes upper cover, inner core, rubber bodies, swelling inner sleeve and swelling overcoat, described inner core is hollow structure, it is provided with upper cover on the top of described inner core, described upper cover realizes the sealing to inner core from above, is provided with the through hole for installing the operating bar being connected with focus in described upper cover；It is provided with the shaft shoulder 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 between the described shaft shoulder and upper cover is provided externally with rubber bodies, the inwall of described rubber bodies and the wall contacts of inner core, it is respectively arranged at two ends with sealing mechanism in described rubber bodies, described sealing mechanism includes swelling inner sleeve and swelling overcoat, described swelling inner sleeve is enclosed within rubber bodies, and in swelling, set is provided with open slot, described swelling overcoat is loop configuration, the inwall of described swelling overcoat includes installed surface and taper surface, described swelling overcoat above is threadeded with upper cover by installed surface, the described swelling overcoat being positioned below is threadeded with the shaft shoulder by installed surface, the wall contacts of described taper 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 through being axially uniformly arranged along inner core, the some oil throughs often organized circumferentially are uniformly arranged.
Further, the distance between the described shaft shoulder and inner core top is more than the distance between bottom the shaft shoulder and inner core.
Further, described upper cover is threadeded with inner core.
Further, described upper cover includes setting up and down and connected two cylinder, and the cylinder on top is connected with swelling sleeve thread, and the cylinder of bottom is threadeded with inner core.
The beneficial effects of the utility model are: a kind of swelling sealing device that this utility model provides, the displacement at focus place passes to operating bar, operating bar extruding fluid within inner core so that oil liquid pressure increases, and fluid is extruding rubber bodies after oil through, rubber bodies is expanded, rubber bodies transfers the force to the friction piece outside rubber bodies so that friction piece dilatancy, and the normal 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 utility model；
Fig. 2 is the profile of swelling inner sleeve；
Fig. 3 is the schematic diagram of swelling inner sleeve；
Fig. 4 is the profile 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 installed surfaces, 3 swelling inner sleeves, 31 open slots, 4 rubber bodies, 5 inner cores, 51 oil throughs, 52 shaft shoulders.
Detailed description of the invention
As shown in Figures 1 to 6, this utility model mainly includes upper cover 1, swelling overcoat 2, swelling inner sleeve 3, rubber bodies 4 and inner core 5, below in conjunction with accompanying drawing, this utility model is described in detail.
Such as Fig. 1, figureShown in 6, inner core 5 is cylinder-like structure, is provided with female thread in the bottom of inner core, fills fluid in the inner chamber of inner core.Being provided with some groups of oil throughs 51 on the outer wall of inner core, axially arranged along inner core of some groups of oil throughs, the oil through 51 often organized circumferentially is uniformly arranged, and the effect of oil through is used to transmission oil liquid pressure.The shaft shoulder 52 of annular it is provided with at the middle part of inner core 5, distance between the shaft shoulder and inner core top is more than the distance between bottom the shaft shoulder and inner core, inner core above the shaft shoulder is cased with rubber bodies 4, rubber bodies 4 is columnar structured, the inwall of rubber bodies and the wall contacts of inner core, arrange friction piece in the outside of rubber bodies.A sealing mechanism it is respectively arranged at two ends with up and down in rubber bodies 4, sealing mechanism is made up of swelling inner sleeve 3 and swelling overcoat 2, swelling inner sleeve is the hollow structure of truncated cone-shaped, the inwall of swelling inner sleeve is cylindrical, the inwall of swelling inner sleeve and the wall contacts of rubber bodies, as shown in Figure 4, Figure 5, set is provided with the open 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 includes taper surface 21 and installed surface 22, and the outer wall of swelling inner sleeve contacts with the taper surface of swelling overcoat.Being provided with female thread on the installed surface of swelling overcoat, swelling overcoat above is threadeded with upper cover 1 by installed surface, and the swelling overcoat being positioned below is threadeded with the shaft shoulder.Upper cover includes setting up and down and connected two cylinder, and swelling overcoat is threadeded with upper cylinder.Upper cover can be one-body molded, it is also possible to separately fabricated upper cylinder and lower cylinder, is then welded and fixed.When rotating swelling overcoat 2, swelling overcoat just and produces pressure between swelling inner sleeve 3, owing to the existence swelling inner sleeve of open slot is shunk, and then compress rubber bodies 4 so that rubber bodies ensures good seal with inner core close contact.
Also being provided with external screw thread on the lower cylinder of upper cover, the top of inner core 5 is connected with the lower thread of upper cover 1, the axis of upper cover 1 has the through hole of circle for installing operating bar, and good seal between operating bar and upper cover, operating bar is connected with focus.The bottom of inner core can be enclosed construction, it can also be uncovered structure, now it is provided with booster body in the bottom of inner core, fluid in inner core can be produced certain precompression by booster body, to ensure that operating bar is to when moving in inner core, fluid in inner core is subject to enough pressure, now fluid extrudes rubber bodies through oil through, rubber bodies is deformed, rubber bodies transfers the force to friction piece, making friction piece expand, the normal pressure between friction piece and cylinder body increases, and then ensures enough frictional force.
Claims (6)
1. a swelling sealing device, it is characterized in that, it includes upper cover, inner core, rubber bodies, swelling inner sleeve and swelling overcoat, described inner core is hollow structure, it is provided with upper cover on the top of described inner core, described upper cover realizes the sealing to inner core from above, is provided with the through hole for installing the operating bar being connected with focus in described upper cover；It is provided with the shaft shoulder 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 between the described shaft shoulder and upper cover is provided externally with rubber bodies, the inwall of described rubber bodies and the wall contacts of inner core, it is respectively arranged at two ends with sealing mechanism in described rubber bodies, described sealing mechanism includes swelling inner sleeve and swelling overcoat, described swelling inner sleeve is enclosed within rubber bodies, and in swelling, set is provided with open slot, described swelling overcoat is loop configuration, the inwall of described swelling overcoat includes installed surface and taper surface, described swelling overcoat above is threadeded with upper cover by installed surface, the described swelling overcoat being positioned below is threadeded with the shaft shoulder by installed surface, the wall contacts of described taper surface and swelling inner sleeve.
2. a kind of swelling sealing device according to claim 1, is characterized in that, described inner core is cylinder-like structure.
3. a kind of swelling sealing device according to claim 1, is characterized in that, some described oil throughs are divided into many groups, and many group oil through being axially uniformly arranged along inner core, the some oil throughs often organized circumferentially are uniformly arranged.
4. a kind of swelling sealing device according to claim 1, is characterized in that, the distance between the described shaft shoulder and inner core top is more than the distance between bottom the shaft shoulder and inner core.
5. a kind of swelling sealing device according to claim 1, is characterized in that, described upper cover is threadeded with inner core.
6. a kind of swelling sealing device according to claim 1, is characterized in that, described upper cover includes setting up and down and connected two cylinder, and the cylinder on top is connected with swelling sleeve thread, and the cylinder of bottom is threadeded with inner core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620070108.2U CN205371430U (en) | 2016-01-26 | 2016-01-26 | Tight sealing device expands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620070108.2U CN205371430U (en) | 2016-01-26 | 2016-01-26 | Tight sealing device expands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371430U true CN205371430U (en) | 2016-07-06 |
Family
ID=56268579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620070108.2U Expired - Fee Related CN205371430U (en) | 2016-01-26 | 2016-01-26 | Tight sealing device expands |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546011A (en) * | 2016-01-26 | 2016-05-04 | 济南大学 | Expansion sealing device |
-
2016
- 2016-01-26 CN CN201620070108.2U patent/CN205371430U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546011A (en) * | 2016-01-26 | 2016-05-04 | 济南大学 | Expansion sealing device |
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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: 20160706 Termination date: 20180126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |