CN207018536U - Temperature-compensating oil sealing - Google Patents
Temperature-compensating oil sealing Download PDFInfo
- Publication number
- CN207018536U CN207018536U CN201720943374.6U CN201720943374U CN207018536U CN 207018536 U CN207018536 U CN 207018536U CN 201720943374 U CN201720943374 U CN 201720943374U CN 207018536 U CN207018536 U CN 207018536U
- Authority
- CN
- China
- Prior art keywords
- skeleton
- connecting portion
- rubber bodies
- layer metal
- oil
- 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.)
- Active
Links
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a kind of temperature-compensating oil sealing, including rubber bodies, skeleton, rubber bodies and skeleton are overall in a ring, skeleton includes vertical connecting portion and " √ " type connecting portion, the transition junction of vertical connecting portion and " √ " type connecting portion is gently bent, and the section of skeleton is radially inwardly projecting hook-type；Skeleton is formed by fixedly connecting by double layer of metal, and wherein the coefficient of expansion of inner layer metal is more than the coefficient of expansion of outer layer metal；The annular groove matched with frame configuration is provided with rubber bodies, skeleton is arranged in annular groove.The utility model skeleton is radially possessing certain elastic deformation ability, and firmly rubber bodies can be fixed on pump shaft when mounted；After oil pump operation heating, the inner layer metal dilatancy amount contacted with oil is more than outer layer metal, and the projection of " √ " type connecting portion further inwardly compresses pump shaft, there is provided the compensation pressure after temperature rise；The utility model favorable sealing property, can effectively avoid heating after oil leak the problem of.
Description
Technical field
It the utility model is related to a kind of temperature-compensating oil sealing.
Background technology
Oil sealing is the seal of mechanism rotary shaft, and it is to prevent liquid along axial rotary external leakage and prevent outside miscellaneous that it, which is acted on,
Thing invades internal body.As rotation shaft seal, in addition to oil sealing, also mechanical seal and soft packing seal etc..
But in these sealing devices, the structure of oil sealing is simple, installation easily, cost is cheap, is widely used.Oil pump, reductor etc.
Rotation axis seal use oil sealing mostly.
Traditional sealing ring is typically made of single elastomeric material or other high polymer materials, the sealing of this structure
When being matched with housing, its sealing effectiveness is not easy to ensure circle, and radiating effect is poor, and its material is also easily because aging deformation loses bullet
Property, thus service life is shorter, it is necessary to frequently change, and influences the operational efficiency of equipment；In addition, oil pump is in operation a period of time meeting
Heating, causes the viscosity of fluid to decline, is more prone to reveal.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of temperature-compensating oil sealing of favorable sealing property.
Technical scheme is used by the utility model solves its technical problem：Temperature-compensating oil sealing, including rubber bodies, bone
Frame, rubber bodies and skeleton are overall in a ring, and skeleton includes vertical connecting portion and " √ " type connecting portion, vertical connecting portion and " √ " type
The transition junction of connecting portion is gently bent, and the section of skeleton is radially inwardly projecting hook-type；Skeleton is fixed by double layer of metal
It is formed by connecting, wherein the coefficient of expansion of inner layer metal is more than the coefficient of expansion of outer layer metal；It is provided with rubber bodies and skeleton shape
The annular groove of shape matching, skeleton are arranged in annular groove.
Wherein, it is provided with screwed hole on the end face of rubber bodies.
The beneficial effects of the utility model are：The section of the utility model skeleton is radially inwardly projecting hook-type, in footpath
To possessing certain elastic deformation ability, play a part of similar clip, rubber bodies firmly can be fixed on pump when mounted
On axle, favorable sealing property；Skeleton is formed by fixedly connecting by double layer of metal, and wherein the coefficient of expansion of inner layer metal is more than outer layer gold
The coefficient of expansion of category, after oil pump operation heating, the inner layer metal dilatancy amount contacted with oil is more than outer layer metal, " √ " type
The projection of connecting portion produces elastic deformation and further inwardly compresses pump shaft, there is provided the compensation pressure after temperature rise, protects
Demonstrate,prove favorable sealing property.
Brief description of the drawings
Fig. 1 is diagrammatic cross-section of the present utility model；
Fig. 2 is the schematic diagram at A in Fig. 1；
In figure mark for：Rubber bodies 1, skeleton 2, vertical connecting portion 21, " √ " type connecting portion 22, pump shaft 3, the pump housing 4, sealing
Back-up ring 5.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
Temperature-compensating oil sealing, including rubber bodies 1, skeleton 2, as shown in figure 1, rubber bodies 1 be socketed in pump shaft 3 and the pump housing 4 it
Between, and fixed by Sealing shield ring 5；Rubber bodies 1 and skeleton 2 are overall in a ring, as shown in Fig. 2 skeleton 2 includes vertical connecting portion
21 are connected with " √ " type connecting portion 22, the projection of " √ " type connecting portion 22 close to pump shaft 3, vertical connecting portion 21 with " √ " type
The transition junction in portion 22 is gently bent, and the section of skeleton 2 is radially inwardly projecting hook-type, and skeleton 2 plays similar clip
Effect, has certain elastic deformation amount, rubber bodies 1 is clamped on pump shaft 3 during installation；Skeleton 2 is fixed by double layer of metal to be connected
Connect and form, wherein the coefficient of expansion of inner layer metal is more than the coefficient of expansion of outer layer metal, and inner layer metal is in the pump housing 4 and oil
One layer of contact, after oil pump operation heating, inner layer metal dilatancy amount is more than outer layer metal, the protrusion of " √ " type connecting portion
Part produces elastic deformation and further inwardly compresses pump shaft, there is provided the compensation pressure after temperature rise, avoids revealing；Rubber bodies
The annular groove with the form fit of skeleton 2 is provided with 1, skeleton 2 is arranged in annular groove, and annular groove is connected with " √ " type
The contact portion of portion's projection is sealing lip.
Preferably, screwed hole is provided with the end face of rubber bodies 1, for being connected with Sealing shield ring 5.
Claims (2)
1. temperature-compensating oil sealing, it is characterised in that：Including rubber bodies (1), skeleton (2), rubber bodies (1) and skeleton (2) are in integrally
Annular, skeleton (2) include vertical connecting portion (21) and " √ " type connecting portion (22), vertical connecting portion (21) and " √ " type connecting portion
(22) transition junction is gently bent, and the section of skeleton (2) is radially inwardly projecting hook-type；Skeleton (2) is by double layer of metal
It is formed by fixedly connecting, wherein the coefficient of expansion of inner layer metal is more than the coefficient of expansion of outer layer metal；Be provided with rubber bodies (1) with
The annular groove of skeleton (2) form fit, skeleton (2) are arranged in annular groove.
2. temperature-compensating oil sealing according to claim 1, it is characterised in that：Screw thread is provided with the end face of rubber bodies (1)
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720943374.6U CN207018536U (en) | 2017-07-31 | 2017-07-31 | Temperature-compensating oil sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720943374.6U CN207018536U (en) | 2017-07-31 | 2017-07-31 | Temperature-compensating oil sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018536U true CN207018536U (en) | 2018-02-16 |
Family
ID=61482233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720943374.6U Active CN207018536U (en) | 2017-07-31 | 2017-07-31 | Temperature-compensating oil sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018536U (en) |
-
2017
- 2017-07-31 CN CN201720943374.6U patent/CN207018536U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203272220U (en) | Two-end-face packaging type mortar pump mechanical seal | |
| CN207018536U (en) | Temperature-compensating oil sealing | |
| CN203670792U (en) | Elastic filler and valve using the filler | |
| CN106015796A (en) | High-sealing-performance three-way hydraulic joint | |
| CN208268407U (en) | A kind of combined outside framework oil seal device | |
| CN208268410U (en) | A kind of dust-proof outside framework oil seal | |
| CN205806768U (en) | A kind of high leakproofness three-way hydraulic joint | |
| CN205118243U (en) | A mechanical seal for food level equipment | |
| CN103307281A (en) | Double end face sealing device | |
| CN202646681U (en) | Sealing ring and screw compressor with same | |
| CN210623557U (en) | Novel oil seal | |
| CN208381321U (en) | The silicone rubber O-ring of ventilating leakage-proof | |
| CN202575296U (en) | Bearing connecting assembly of screw conveyor | |
| CN201339713Y (en) | Mechanical seal device for centrifuge | |
| CN201100502Y (en) | Spherical pipeline compensator | |
| CN104265901B (en) | Enclosure seal circle | |
| CN201396536Y (en) | Rotary sealing joint | |
| CN109357017A (en) | A kind of two-way abutting formula marine screw shaft sealing device | |
| CN205371630U (en) | Oil seal | |
| CN205047848U (en) | Air film seal spring formula structure for cryogenic pump | |
| CN101788058B (en) | Pressure-bearing contact type shaft seal ring | |
| CN202901288U (en) | Delf-seal packing | |
| CN213684440U (en) | Oil seal structure of connecting rod big end bearing of air compressor | |
| CN207989565U (en) | A kind of accurate sealing gland | |
| CN220749042U (en) | Leak-proof corrugated pipe mechanical sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |